NV pollen report
Las Vegas Pollen Report
Las Vegas traded its desert-quiet allergy reputation decades ago: the valley's lush landscaping brought mulberry, olive, ash, and pine, and the surrounding Mojave still sends in creosote, ragweed, and Russian thistle. Spring is the roughest stretch, but with year-round irrigation and mild winters, something is pollinating in the valley in almost every month.
Collection coming soon to Las Vegas
PollyMap is actively recruiting a verified local partner in Las Vegas. Be the first to know — or apply to be the partner.
While we find a local clinic
Test the air at your own home in Las Vegas
No allergy clinic is reporting from Las Vegas yet. Until one does, you can order your own PollyKit — a simple air sampler you hang outdoors or indoors. Send it back and the PollyKit Lab shows you exactly what's floating in your air.
- Pollen from local trees, grasses and weeds
- Airborne mold spores
- Dust mites and other indoor allergens
Hang it outdoors
See which pollen and mold are in your yard this season.
Or hang it indoors
Check bedrooms and living spaces for mold, dust mites and more.
What drives allergies in Las Vegas
Trees: mulberry, olive, and ash (February – May)
Fruitless mulberry (Morus alba) — once planted everywhere, now restricted — is the valley's most notorious allergen. Olive (Olea), ash, and pine add to a heavy spring season.
Grasses: Bermuda (April – October)
Irrigated lawns and golf courses keep Bermuda grass pollen in play for most of the warm season.
Weeds: ragweed and Russian thistle (August – November)
Fall brings ragweed (Ambrosia), Russian thistle (tumbleweed), and careless weed from desert washes and disturbed lots across the valley.
Mold: low but not zero
Outdoor mold counts are modest in the dry Mojave air but rise after rare rain events and in irrigated landscapes.
Pollen patterns in Las Vegas
In Las Vegas, tree pollen — including Mulberry, Olive, Mesquite — typically dominates from late winter through spring. Bermuda grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Top trees
- Mulberry
- Olive
- Mesquite
- Juniper
- Ash
Top grasses
- Bermuda
- Buffalo
- Saltgrass
Top weeds
- Ragweed
- Russian thistle (tumbleweed)
- Pigweed
- Sagebrush
Top molds
- Alternaria
- Cladosporium
- Aspergillus
Las Vegas pollen calendar
Typical monthly intensity across the year.
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| tree | ||||||||||||
| grass | ||||||||||||
| weed | ||||||||||||
| mold |
Historical reports
Cities near Las Vegas
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
What is the pollen count in Las Vegas today?
PollyMap publishes real, microscope-verified pollen counts for Las Vegas — measured from physical air samples. The latest report on this page shows current tree, grass, weed, and mold levels.
Is the pollen count high in Las Vegas right now?
Las Vegas pollen peaks in March and April (mulberry, olive, ash) and again in September and October (ragweed, tumbleweed). The measured reports on this page show today's actual levels.
When is allergy season in Las Vegas?
Spring (February–May) is the worst for tree pollen, grasses run through the warm months, and desert weeds take over in fall. Mild winters offer the only real break.
Why did my allergies get worse after moving to Las Vegas?
The modern valley is heavily landscaped — mulberry, olive, and ash replaced bare desert — so newcomers encounter allergenic pollens the old desert never produced. Spring winds spread them valley-wide.
Is pollen still bad in Las Vegas in the fall?
Yes. Ragweed and desert weeds run through October in the Las Vegas valley, and Bermuda grass can linger in warm autumns. Dry, windy fall days keep pollen aloft across the metro.
Are you an allergy clinic in Las Vegas? Claim your territory on PollyMap.
PollyMap is a local authority-building tool for allergy clinics, ENT practices, and any clinic that offers allergy care. By becoming the Official PollyMap Partner for your part of Las Vegas, your clinic gets credited on real pollen reports, receives ready-to-share weekly content, and becomes the go-to local expert patients trust.
We assign each partner a designated territory within the Las Vegas metro — like a franchise territory. Las Vegas has room for multiple partners, but once your area is assigned, it's locked to your clinic.
No clinic has claimed a territory in Las Vegas yet. The best areas go to the first clinics that sign up — once one does, that part of town is off the table for everyone else.
The valley keeps growing — Summerlin, Henderson, Spring Valley, and Centennial Hills each make strong PollyMap territories. First clinic in each area becomes its credited pollen expert.
- Your clinic credited on every Las Vegas pollen report
- Weekly real-sample reports and ready-to-share content under your brand
- Locked territory — competing clinics can't claim your area
- Become the go-to allergy expert in your part of Las Vegas
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