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Real-time pollen data for North Las Vegas — updated daily.
North Las Vegas shares the Las Vegas Valley's distinctive tree allergen profile — one dominated not by native desert species but by exotic landscaping trees planted for shade and aesthetics across decades of suburban development. Mulberry trees remain the most notorious tree allergen in the valley. Clark County banned the planting and sale of mulberry trees in 1991 because male mulberry trees, massively overplanted for shade throughout the valley, produce extraordinary quantities of highly allergenic pollen. Trees planted before the ban still exist throughout North Las Vegas's older neighborhoods (particularly in the original city core near Las Vegas Boulevard North and Civic Center Drive) and continue producing pollen every spring. Olive trees (European olive) were also banned in 1991 for the same reason and continue pollinating from existing mature specimens. Ash trees (Arizona ash, velvet ash, Modesto ash) are among the most common urban trees in North Las Vegas and produce heavy pollen loads from February through April. Oak, pine (Aleppo pine, Afghan pine), and cedar/juniper contribute additional tree pollen. Mesquite, the only significant native tree allergen, pollinates in spring. The newer master-planned communities in northern and eastern North Las Vegas (Aliante, Eldorado, Tule Springs) tend to have younger trees that produce less pollen than the mature mulberry and olive specimens in older neighborhoods, but the landscaping mix still includes allergenic species. Palo verde and desert willow, increasingly used in xeriscaping, are low-allergen native alternatives.
Bermuda grass is the dominant grass allergen across the entire Las Vegas Valley, including North Las Vegas. It is the most widely planted lawn grass in residential yards, parks, school grounds, and commercial landscapes. Despite the desert setting, North Las Vegas has extensive irrigated grass areas that produce substantial pollen from late spring through early summer. Bermuda grass pollen is fine and wind-dispersed, triggering symptoms even at moderate counts. Ryegrass is commonly used for winter overseeding of lawns and athletic fields, extending grass pollen exposure into cooler months. Kentucky bluegrass, Timothy grass, Johnson grass, and orchard grass round out the grass allergen mix. The grass pollen season in North Las Vegas is relatively compressed compared to humid climates because triple-digit summer temperatures (regularly exceeding 110°F in June through August) suppress grass growth and pollen production. This creates a brief mid-summer reprieve from grass pollen — one of the few natural breaks in the valley's allergen calendar. However, irrigated turf that receives adequate water can continue producing some pollen even during extreme heat. North Las Vegas's parks (including Craig Ranch Regional Park, one of Clark County's largest), school grounds, and the city's expanding residential neighborhoods contribute significant grass pollen sources.
Fall brings the Las Vegas Valley's worst weed pollen season. Ragweed, while not as prevalent as in the eastern United States, has become well-established in disturbed soil, roadsides, construction margins, and urban vacant lots throughout North Las Vegas. The city's explosive residential growth has created vast areas of disturbed desert soil that provide ideal ragweed and weed habitat. Sagebrush (Artemisia) is the most significant native weed allergen in southern Nevada, producing substantial pollen from late summer through fall. Russian thistle (tumbleweed) thrives in the Mojave's arid conditions and is ubiquitous along roadsides, construction perimeters, and undeveloped desert adjacent to North Las Vegas's expanding neighborhoods. Pigweed (amaranth), lamb's quarters, and saltbush contribute additional fall weed pollen. The explosive pace of new construction in North Las Vegas — one of Nevada's fastest-growing cities for over two decades — continuously creates new disturbed soil habitat where pioneer weed species colonize rapidly. Areas of active development along the city's northern and eastern frontiers, including ongoing master-planned community construction and the Apex Industrial Park area, generate both construction dust and weed pollen simultaneously.
Desert dust is the defining respiratory challenge that separates the Las Vegas Valley from humid-climate cities. North Las Vegas occupies the northern portion of the valley, positioned where prevailing winds enter from the open Mojave Desert to the north and northeast. This northern exposure means North Las Vegas often receives the first and most concentrated dust loads during wind events. Mojave dust is not ordinary household dust — it is an extremely fine mixture of mineral fragments, soil, alkaline caliche particles, and traffic-related particulates that can bypass poor-quality air filters and penetrate deep into the lungs. Research from the University of Nevada, Las Vegas (UNLV) has identified concerning mineral content in the dust near North Las Vegas. Studies at the Nellis Dunes Off-Highway Vehicle Recreation Area, located approximately 15 minutes northeast of North Las Vegas, found asbestos-like minerals (palygorskite) and elevated arsenic levels in desert soils. When disturbed by off-road vehicles, wind events, or construction, these minerals become airborne. The research documented that human disturbance at Nellis Dunes doubled the amount of dust in the area compared to undisturbed desert surfaces. While these specific minerals are concentrated near Nellis Dunes, the broader finding — that southern Nevada's desert dust contains a complex mixture of minerals and metals including aluminum, vanadium, chromium, manganese, iron, copper, zinc, and arsenic — applies to construction and wind-generated dust across the valley. Mold is less prevalent in North Las Vegas's arid climate than in humid cities, though it can develop in evaporative coolers, HVAC systems, and areas with irrigation water intrusion. Dust mites are present but limited by low humidity (typically 10-30%). Indoor allergens including pet dander and cockroach allergen are year-round concerns.
Severity: Low to Moderate
Winter is the closest North Las Vegas comes to an allergy reprieve from biological pollen, though it is never entirely free of respiratory challenges. Juniper and cedar begin pollinating as early as December. Ash trees start producing pollen in February. The Las Vegas Valley is prone to temperature inversions during winter, where cold air settles into the valley basin and is trapped beneath a layer of warmer air above. These inversions concentrate particulate matter, vehicle emissions, and any biological allergens near ground level, degrading air quality across the valley. North Las Vegas's position at the northern end of the valley basin means it sits at the base of where cold air pools. Winter wind events can generate dust from exposed desert surfaces north and east of the city. Indoor allergens — pet dander, dust from HVAC systems that have been recirculating desert particulates — are the primary triggers during winter months. The extremely dry winter air (humidity frequently dropping below 15%) dries nasal passages, reducing the protective mucus layer that normally traps allergens before they reach the lungs.
Severity: High to Severe
Spring is North Las Vegas's most challenging allergy season. Mulberry trees (from pre-1991 ban specimens), olive trees, ash, oak, pine, mesquite, and juniper produce overlapping pollen that peaks from March through April. The warm, windy spring weather promotes pollen dispersal across the flat valley floor. Spring also brings the most frequent and intense wind events, generating dust storms that carry Mojave Desert particulates through the northern valley. Winds gusting to 40-60 mph are common in spring, and the exposed desert terrain north and east of North Las Vegas provides unlimited dust source material. By April, grass pollen from Bermuda grass begins surging as irrigated lawns and parks emerge from winter dormancy. The overlap of peak tree pollen, emerging grass pollen, and frequent dust storms makes March through May the single worst period for respiratory symptoms in North Las Vegas. Construction activity, which slows somewhat during winter, ramps up in spring, adding construction-generated dust to the biological pollen and natural desert dust already in the air.
Severity: Moderate
Summer brings extreme heat to North Las Vegas — triple-digit temperatures are the norm, with highs regularly exceeding 110°F in June and July. The extreme heat actually suppresses biological pollen production, as many plants reduce pollination during the hottest months. This creates a narrow mid-summer window where biological allergen levels are lower than spring or fall. However, desert dust remains a constant — afternoon convective winds and occasional monsoon-related dust events (similar to Arizona haboobs) can generate significant dust storms. The extreme heat creates ground-level ozone from vehicle emissions and industrial precursor pollutants, adding a non-allergen respiratory irritant that compounds the effects of dust exposure. Wildfire smoke from California, Arizona, and northern Nevada fires increasingly affects the Las Vegas Valley during summer, bringing PM2.5 particles that can linger for days in the valley basin. Ragweed begins pollinating in August, signaling the transition to fall weed season. Indoor allergen exposure increases as residents spend more time in air-conditioned environments, recirculating dust mites, pet dander, and HVAC-accumulated particulates.
Severity: Moderate to High
Fall brings the Las Vegas Valley's worst weed pollen season. Ragweed peaks from September through October. Sagebrush, Russian thistle, pigweed, and other desert weeds produce overlapping pollen. The fall construction season is typically at full intensity in North Las Vegas, with residential and commercial development generating dust from grading, excavation, and site preparation across the city's expanding frontier. Fall also brings the return of wind events as weather patterns shift, generating dust from the exposed desert north and east of the city. The combination of fall weed pollen, construction dust, and natural desert dust creates a multi-source respiratory challenge. Temperatures moderate from summer extremes, making outdoor activity more appealing but also increasing allergen exposure. The first winter inversions may begin forming in late November, trapping particulates in the valley basin. Mold growth, while minimal in the arid climate overall, can spike briefly after the rare autumn rain events.
North Las Vegas has been one of Nevada's fastest-growing cities for over two decades, and the pace of residential and commercial development shows no signs of slowing. New master-planned communities (Aliante, Tule Springs, Valley Vista) continue expanding north and east into previously undeveloped desert. The Apex Industrial Park area is undergoing massive development. Each new neighborhood, road, and commercial site requires grading and excavation of desert soil that has been undisturbed for thousands of years — and that soil, once exposed, becomes an ongoing source of airborne dust until construction is complete and landscaping is established. For residents living near active construction zones, dust exposure can be significantly higher than in established neighborhoods. If your home is within a mile of active grading or excavation, upgrade to MERV 13 or higher HVAC filters, seal gaps around windows and doors, and run HEPA air purifiers in bedrooms. Track North Las Vegas construction activity and avoid outdoor exercise downwind of active sites during windy conditions.
North Las Vegas's geographic position at the northern end of the Las Vegas Valley creates specific dust exposure patterns that differ from the central valley (Las Vegas Strip area) or southern valley (Henderson). Prevailing winds from the north and northeast carry Mojave Desert dust directly into North Las Vegas before it reaches the rest of the valley. The Nellis Dunes Off-Highway Vehicle Recreation Area, located northeast of the city, is a significant dust source — UNLV research has documented that recreational vehicle activity in the dunes doubled the amount of airborne dust compared to undisturbed desert surfaces. Studies found asbestos-like minerals (palygorskite) and elevated arsenic levels in the soil around Nellis Dunes. While these concentrated mineral exposures are primarily a concern for people recreating at the dunes themselves, wind events can carry fine particulates from the area into nearby North Las Vegas neighborhoods. If you recreate at Nellis Dunes or other off-road areas, wear an N95 mask during dusty conditions and shower immediately afterward to remove particulates from skin and hair.
North Las Vegas's extreme aridity — humidity frequently drops below 15% and sometimes below 10% — creates a respiratory challenge that is unique to desert cities. Your nasal passages produce a layer of protective mucus that traps pollen, dust, and mold spores before they penetrate deeper into your respiratory system. In North Las Vegas's desert air, nasal passages dry out and produce less protective mucus, allowing allergens to bypass this natural barrier and reach the lungs more directly. This is one reason people who relocate to the Las Vegas Valley for allergy relief often find their symptoms do not improve, or may even worsen — the dry air effectively disables one of your body's most important allergen filters. Use saline nasal spray or a neti pot daily to maintain nasal moisture. Run a humidifier in bedrooms to maintain 30-40% indoor humidity (but not higher, to avoid creating conditions for mold growth). Stay well hydrated — the dry desert air increases fluid loss through respiration and evaporation.
Clark County's 1991 ban on planting mulberry and European olive trees was one of the first allergen-motivated tree bans in the United States. Both species were massively overplanted for shade across the Las Vegas Valley in the 1960s through 1980s, and they produce extraordinary quantities of highly allergenic pollen. The ban prevented new plantings but did nothing to remove existing trees, which continue pollinating every spring more than three decades later. North Las Vegas's older neighborhoods — particularly areas near Las Vegas Boulevard North, Civic Center Drive, and the original city core developed before the ban — have significant concentrations of mature mulberry and olive trees. Newer developments like Aliante and Tule Springs have fewer of these species but are not entirely free of them. If you have a mulberry or olive tree on your property, consider replacing it with a low-allergen alternative like desert willow, palo verde, or native mesquite (which produces less pollen per tree). If removal isn't feasible, stay indoors with windows closed during peak pollination (March–April for mulberry, April–May for olive).
HeyAllergy offers telemedicine appointments with board-certified allergists and immunologists licensed in Nevada. Book a virtual consultation from home, have allergy blood tests ordered at a convenient local lab, and receive a personalized treatment plan based on your specific triggers. HeyPak sublingual immunotherapy drops ship directly to your door and treat the root cause of allergies by building tolerance to the specific allergens driving your symptoms — whether mulberry, olive, ash, Bermuda grass, ragweed, sagebrush, dust mites, or pet dander. In a city where biological pollen, construction dust, and Mojave mineral particulates combine to create a complex respiratory environment, treating the underlying allergic sensitivity is the most effective path to lasting relief.
March through May is typically the worst period, when peak tree pollen from mulberry, olive, ash, and oak overlaps with emerging grass pollen and frequent spring dust storms. September through November brings a secondary peak from ragweed, sagebrush, and construction-generated dust. Desert mineral dust is a year-round concern regardless of pollen season.
The most common allergens are mulberry tree pollen (from pre-1991 ban trees), olive tree pollen, ash, Bermuda grass, ragweed, sagebrush, Russian thistle, desert dust, dust mites, and pet dander. Most of the worst allergen-producing plants in North Las Vegas are non-native species planted for landscaping rather than native desert plants. A blood allergy test identifies your specific triggers.
Yes. North Las Vegas's rapid residential and commercial development continuously disturbs desert soil that has been undisturbed for thousands of years. Construction-generated dust contains fine mineral particulates including alkaline caliche that can irritate airways. UNLV research at nearby Nellis Dunes found asbestos-like minerals and elevated arsenic in desert soils. Residents near active construction should use MERV 13+ HVAC filters and HEPA air purifiers.
Yes. HeyAllergy provides telemedicine appointments with board-certified allergists and immunologists licensed in Nevada. Book a virtual consultation from anywhere in the state, have allergy blood tests ordered at a lab near you, and start a personalized treatment plan without visiting a clinic. No referral needed and no waitlist.
HeyPak sublingual immunotherapy uses customized liquid drops placed under your tongue daily. The drops contain precise doses of the specific allergens triggering your symptoms — whether mulberry, olive, Bermuda grass, ragweed, sagebrush, dust mites, or pet dander. Over time, your immune system builds tolerance, reducing allergic reactions and medication dependence. Most patients notice improvement within 3 to 6 months.
HeyAllergy accepts Medicare and most major PPO health plans, including United Healthcare, Health Net, Anthem Blue Cross, Blue Shield, Cigna, Aetna, Humana, Oscar, and Tricare. Contact your insurance provider with Tax ID: 85-0834175 to confirm your specific telemedicine coverage.
Clark County banned the planting and sale of mulberry and European olive trees in 1991 because both species produce extraordinary amounts of highly allergenic pollen that was causing severe respiratory problems across the valley. Male mulberry trees were massively overplanted for shade in the 1960s–1980s. The ban prevented new plantings but existing trees — many now 40+ years old — continue pollinating every spring in older North Las Vegas neighborhoods.
HeyAllergy offers fast scheduling with no waitlist. Book a telemedicine appointment with a board-certified allergist and connect from home using your phone, tablet, or computer. This is especially convenient for North Las Vegas residents who want to avoid driving across the valley to specialist offices concentrated near the medical district.
North Las Vegas, Nevada — population approximately 265,000, the third-largest city in Nevada and one of the fastest-growing cities in the state for over two decades — occupies the northern portion of the Las Vegas Valley, bounded by Nellis Air Force Base to the east, the Sheep Range foothills to the north, and the city of Las Vegas to the south. This position at the valley's northern edge creates specific allergen exposure patterns that distinguish North Las Vegas from the central valley (the Las Vegas Strip corridor) and the southern valley (Henderson). The city's explosive residential growth — transforming from a small community of roughly 47,000 in 1990 to over 265,000 today — has been one of the defining forces shaping its allergen environment. Each wave of new construction disturbs desert soil that has been undisturbed for thousands of years, releasing mineral particulates and creating vast areas of exposed earth that become dust sources until landscaping is established. The ongoing development of master-planned communities (Aliante, Tule Springs, Valley Vista, North Valley Enterprise) and the Apex Industrial Park area means construction dust is not a temporary condition but a permanent feature of North Las Vegas's air quality landscape.
The Nellis Dunes Off-Highway Vehicle Recreation Area, located approximately 15 minutes northeast of North Las Vegas, represents one of the most studied examples of how human disturbance amplifies desert dust exposure. Research from the University of Nevada, Las Vegas (UNLV) has documented significant findings about the dust composition in this area. UNLV medical geologist Brenda Buck found asbestos-like minerals known as palygorskite at Nellis Dunes, along with elevated arsenic levels in the surrounding soils. Her research concluded that human disturbance — primarily from off-road vehicle activity — had doubled the amount of airborne dust compared to undisturbed desert surfaces. A peer-reviewed study published in the Journal of Environmental Science and Health characterized the dust at Nellis Dunes as a complex mixture of minerals and metals including aluminum, vanadium, chromium, manganese, iron, cobalt, copper, zinc, arsenic, strontium, cesium, lead, and uranium. While the highest concentrations of these minerals are at the dunes themselves, wind events carry fine particulates from the area into the broader North Las Vegas airshed. For the thousands of families, riders, and day campers who visit Nellis Dunes regularly, direct dust exposure is significant. For North Las Vegas residents in nearby neighborhoods, wind-transported particulates from the dunes area contribute to the mineral dust load that distinguishes the northern valley from other parts of the metro area.
The Las Vegas Valley is essentially a basin surrounded by mountain ranges — the Spring Mountains to the west, the Sheep Range to the north, the Muddy Mountains to the northeast, and the McCullough Range to the south. Wind entering the valley from the north and northeast passes over open Mojave Desert before reaching North Las Vegas, which sits at the northern mouth of the valley basin. This geographic position means North Las Vegas is frequently the first urban area to receive wind-driven dust during regional wind events. Prevailing winds from the north carry dust from the vast undeveloped desert expanses between the Sheep Range and the city, across Nellis Dunes, and directly into North Las Vegas neighborhoods. The Mojave Desert is North America's driest desert, and its soils are not sticky — they lack the organic matter and moisture that holds soil together in humid climates. As UNLV researchers have noted, it doesn't take much wind to lift desert particles into the air, whereas grass growing in a humid climate traps particles effectively. With climate change driving aridification, the Mojave is becoming even hotter and drier, making soils easier to disturb and dust storms more frequent and severe.
Like the rest of the Las Vegas Valley, North Las Vegas's worst allergen-producing plants are overwhelmingly non-native species imported for urban landscaping — not native desert plants. The native Mojave Desert vegetation (creosote bush, Joshua tree, desert tortoise habitat plants) produces relatively little allergenic pollen. The allergen crisis in the Las Vegas Valley was largely created by decades of importing water-hungry, high-pollen landscape species from other climates. Mulberry trees, planted massively for shade from the 1960s through the 1980s, became so problematic that Clark County banned their sale and planting in 1991 — one of the first allergen-motivated tree bans in the United States. European olive trees were banned simultaneously. These pre-ban trees, many now over 40 years old and at peak pollen-producing maturity, continue pollinating every spring in North Las Vegas's older neighborhoods. Bermuda grass lawns, maintained with precious Colorado River water in a city that receives only 4–6 inches of annual rainfall, produce substantial pollen loads across thousands of acres of irrigated residential and commercial landscape. The irony is stark: the most allergenic plants in one of America's driest cities are species that require extensive irrigation to survive, creating an artificial allergen environment in the middle of a desert.
Las Vegas Valley soils have a distinctive characteristic that affects respiratory health: caliche. Caliche is a hard, cement-like layer of calcium carbonate that forms beneath the desert surface, creating an impermeable hardpan that must be mechanically broken during construction. When caliche is disturbed by excavation, grading, or natural erosion, it produces fine, highly alkaline dust particles. This alkaline caliche dust is a significant respiratory irritant — more so than neutral-pH soil particles found in most other climates. The extremely high pH (8.0–9.0) of Las Vegas Valley soils means that any dust generated from construction or land disturbance carries this alkaline character. For people with existing allergies, asthma, or respiratory sensitivity, inhaling alkaline desert dust can intensify inflammation and lower the threshold at which biological allergens trigger symptoms. North Las Vegas's ongoing construction boom means caliche is being actively disturbed across the city's expanding frontier, generating this alkaline dust continuously. Established neighborhoods are not immune — road construction, utility work, and individual lot development disturb caliche throughout the city.
HeyAllergy's telemedicine platform connects North Las Vegas residents to board-certified allergists and immunologists licensed in Nevada — providing expert allergy care without the need to drive across the Las Vegas Valley to specialist offices concentrated near the medical district along Maryland Parkway and Rancho Drive. A virtual consultation from home eliminates traffic on I-15, US-95, or the Beltway. Allergy blood tests are ordered at a convenient local lab, and a personalized treatment plan is developed based on your specific triggers. HeyPak sublingual immunotherapy drops ship directly to your door and treat the root cause of allergies by building your immune system's tolerance to the specific allergens driving your symptoms. In a city where biological pollen, construction dust, and Mojave mineral particulates combine to create a complex and persistent respiratory environment, treating the underlying allergic sensitivity — rather than relying on antihistamines that only mask symptoms — is the most effective path to lasting relief. HeyAllergy accepts Medicare and most major PPO health plans. Starting at $47 per month for HeyPak drops, with most patients noticing improvement within 3 to 6 months.
