MN pollen report
Minneapolis Pollen Report
Minneapolis packs a serious allergy season into its short warm months. Birch — one of the most allergenic pollens anywhere — explodes across the Twin Cities in spring, oak and maple follow, and summer brings heavy grass and ragweed pollen to the metro's thousands of lakeshores and parkways. The season is compressed but intense.
Collection coming soon to Minneapolis
PollyMap is actively recruiting a verified local partner in Minneapolis. 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 Minneapolis
No allergy clinic is reporting from Minneapolis 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 Minneapolis
Trees: birch, oak, and maple (April – June)
Paper birch (Betula) is the Twin Cities' signature spring allergen, joined by oak, maple, and ash. The season starts late but hits hard in May.
Grasses: Timothy and bluegrass (June – August)
Timothy grass and Kentucky bluegrass pollinate heavily in June and July across the metro's lawns and parks.
Weeds: ragweed (August – frost)
Ragweed (Ambrosia) thrives in the metro's disturbed soils, and fall counts stay elevated until the first killing frost — which can arrive as early as late September.
Mold: summer lakes and fall leaves
Humid summer stretches and autumn leaf litter feed Alternaria and Cladosporium from June through October.
Pollen patterns in Minneapolis
In Minneapolis, tree pollen — including Maple, Oak, Birch — typically dominates from late winter through spring. Bluegrass grass is the most common warm-season pollinator, and Ragweed drives the largest fall pollen load.
Top trees
- Maple
- Oak
- Birch
- Ash
- Walnut
Top grasses
- Bluegrass
- Timothy
- Orchard
- Rye
Top weeds
- Ragweed
- Lamb's quarters
- Pigweed
- Plantain
Top molds
- Alternaria
- Cladosporium
- Aspergillus
- Penicillium
Minneapolis 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 Minneapolis
Explore pollen activity in nearby cities reported by the PollyMap network.
Frequently asked questions
What is the pollen count in Minneapolis today?
PollyMap publishes real, microscope-verified pollen counts for Minneapolis — 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 Minneapolis right now?
The Twin Cities' worst stretches are May (birch, oak), June–July (grasses), and August–September (ragweed). The measured reports on this page show today's actual levels.
When is allergy season in Minneapolis?
April through the first hard frost: trees in late spring, grasses in summer, ragweed from August until frost. Long winters are the only true break.
Why is birch pollen such a problem in Minneapolis?
Birch is among the most allergenic tree pollens in North America, and the Twin Cities are full of it. May birch counts can be severe, and birch season overlaps with oak.
Are you an allergy clinic in Minneapolis? 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 Minneapolis, 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 Minneapolis metro — like a franchise territory. Minneapolis has room for multiple partners, but once your area is assigned, it's locked to your clinic.
No clinic has claimed a territory in Minneapolis 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 Twin Cities are two markets in one — Minneapolis, St. Paul, Bloomington, Maple Grove, and beyond each make PollyMap territories. First clinic in each becomes its credited pollen expert.
- Your clinic credited on every Minneapolis 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 Minneapolis
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