Montana Pollen Station

Our pollen station is the only National Allergy Bureau certified counting station in the state of Montana! We provide pollen counts from March through October, reporting to news stations, allergists, and more! Check back to this site often for new information posted each week.

To be added to the pollen count mailing list, contact our counter Emily Weiler at emily1.weiler@umontana.edu

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Current Pollen Report

4/7/2021

Hello! Our tree variety is increasing! Below are your average pollen counts for the week of 3/30-4/6:

Trees: 65, Moderate (Predominantly Juniper, also, Maple, Alder, Birch, Poplar, Mulberry, Willow, Elm and Pine)

Weeds: 0, Absent

Grass: 0, Absent

3/30/2021

Hello! Rain and snow this week has our pollen numbers down a bit, but the variety of trees is increasing! Below are your average pollen counts for the week of 3/23-3/30/21:

Trees: 27, Moderate (Juniper, Pine, Ash, Elm, Maple, Alder, Willow and Poplar)
Weeds: 0, Absent
Grass: 0, Absent

3/24/2021

Hello! As of March 21st, it is officially spring—and the trees think so too! Below are your average pollen counts for the week of 3/15-3/22:

Trees: 26, Moderate (Pine, Juniper, Poplar, Elm, Maple, Ash, and Oak)
Weeds: 0, Absent
Grass: 0, Absent

3/16/2021

Hello! Birds are singing, the sun is shining, but not much pollen is ending up in our machine! Below are your average pollen counts for the week of 3/8-3/15:

Trees: 1, Low (Pine and Ash)
Weeds: 0, Absent
Grass: 0, Absent

3/9/2021

Hello and happy Spring! The pollen station is open and we have your first report below. A whopping two pollen grains. 😊 I’ll be sending out the counts every week! Thank you!

Average pollen counts for the week of 3/1-3/8/21:

Trees: 2, Low (Pine and Ash)
Weeds: 0, Absent
Grass: 0, Absent

11/5/2020

Hello folks! Our last pollen samples ended up un-readable due to some technical difficulties with the amount of rain and snow we had. I apologize for the inconvenience! We are seeing very little pollen in the air this time of year, though. We will close the station and start back up in March 2021.

Thank you for your continued support, especially during this odd year! Have a safe and happy winter and I’ll see you in the spring!

10/14/2020

Hello! It's getting pretty quiet out there in the pollen world, very little to report! Below are your average counts for the week of 10/4-10/11:

Trees: 1, Low (Linden and Pine)

Weeds: 1, Low (Sage)

Grass: 0, Absent

Thanks!

10/5/2020

Hello! Below are your pollen counts for the week of Sept 17-24. Unfortunately the following week's data was lost due to a technical difficulty. Your next report will be for Oct 4-Oct 11.

Trees: 1, Low (Larch and Linden)

Weeds: 8, Low (Sage, PIgweed and Ragweed)

Grass: 1, Low

Thanks!

9/22/2020

Hello! Below are your average pollen counts for the week of 9/10-9/17:

Trees: 2, Low (Pine)

Weeds: 6, Low (Sage and Pigweed)

Grass: 1, Low

Thanks!

9/10/2020

Hello! Below are your average pollen counts for the last two weeks!

8/22-8/29/20:
Trees: 2, Low (Pine)
Weeds: 6, Low (Sage, Pigweed, Knapweed)
Grass: 0, Absent

8/29-9/5/20:
Trees: 5, Low (Pine, Linden and Oak)
Weeds: 3, Low (Sage, Ragweed, Pigweed)
Grass: 1, Low

8/22/2020

Week of 8/12-8/19:
Trees: 7, Low (Pine, Linden, and Larch)
Weeds: 4, Low (Pigweed and Sage)
Grass: 1, Low

8/13/2020

Week of 8/5-8/12:
Trees: 7, Low (Pine, Linden and Larch)
Weeds: 4, Low (Pigweed, Ragweed, Spirea, and Knapweed)
Grass: 0, Absent

8/6/2020

Week of July 27-August 3rd:
Trees: 16, Moderate (Predominantly Linden, also seeing Pine)
Weeds: 5, Low (Ragweed, Pigweed, Sage, Knapweed, Spirea)
Grass: 1, Low

7/28/2020

Week of July 20-July 27th:
Trees: 24, Moderate (Predominantly Linden, also seeing Pine)
Weeds: 6, Low (Ragweed, Sage, Spirea)
Grass: 2, Low

7/21/2020

Hello! Below are your average pollen counts for the week of 7/13-7/20!
Trees: 29, Moderate (predominantly Pine, also Linden with a few Alder, Juniper, and Plantain)
Weeds: 2, Low (Ragweed and Spirea)
Grass: 8, Moderate

7/13/2020

Hello! Hope you’re staying cool out there! Below are your average pollen counts for the week of 7/5-7/12:
Trees: 71, Moderate (Mostly Pine, but also some Tilia, Alder, Juniper and Oak)
Weeds: 3, Low (Ragweed, Dock, Spirea)
Grass: 14, Moderate

7/9/2020

Hello! Below are your average pollen counts for the week of 6/24-7/1:
Trees: 13, Low (Pine and one Juniper)
Weeds: 2, Low (Dock and Spirea)
Grass: 8, Moderate
Next count will go out on Monday!
Thanks!

6/27/2020

Hello folks! Happy Saturday! Below are your average pollen counts for the week of 6/17-6/24:
Trees: 40, Moderate (Predominantly Pine, also seeing a little Alder)
Weeds: 2, Low (Ragweed and a random Woodrush grain)
Grass: 14, Moderate

6/18/2020

Below are your average pollen counts for 6/7-6/14-20:
Trees: 43, Moderate (Predominantly Pine, also Alder, Privet and Hornbeam)
Weeds: 1, Low (Dock)
Grass: 23, High (Yikes! Hope everyone is doing ok!)

6/7/2020

Week of 5/24-6/31:
Trees: 117, High (Predominantly Pine, also Oak, Alder, Birch, Willow, Larch and Privet)
Weeds: 0, Absent
Grass: 3, Low

5/27/2020

Week of 5/17-5/24:
Trees: 44, Moderate (Predominantly Pine and Oak, also Privet)
Weeds: 0, Absent
Grass: 3, Low

5/17/2020

Below are your average pollen counts for the week of 5/7-5/15. Note that we’ve experienced a lot of rain, so levels are lower than expected.
Trees: 21, Low (Seeing Alder, Juniper, Birch, Oak, Pine, Larch, Ash and Willow)
Weeds: 0, Absent
Grass: 0, Absent

5/7/2020

Below are your average pollen counts from April 24-May 4th:

Trees: 141, High (Predominantly Birch, also Ash, Poplar, Juniper, Larch, Alder, Maple, Oak, Willow, Elm, Pine and Mulberry

Weeds: 0, Absent

Grass: 0, Absent

4/24/2020

Below are your average counts for the week of 4/13-4/21:

Trees: 63, Moderate (Predominantly Elm also Poplar, Alder, Juniper, Ash, Larch and Oak)

Weeds: 0, Absent

Grass: 0, Absent

4/13/2020

Below are your average pollen counts for the week of 4/4-4/12:

Trees: 49, Moderate (Predominantly Juniper, also Alder, Birch, Poplar, Elm, Oak and Walnut)

Weeds: 0, Absent

Grass: 0, Absent

4/4/2020

Here is your first pollen report of the season! Keep in mind that due to the rain and recent snow, these numbers are likely lower than they otherwise would be. Below are your average counts for the week of 3/26-4/3:

Trees: 27, Moderate (Predominantly Poplar, also seeing Juniper, Walnut, Pine and Birch)

Weeds: 0, Absent

Grass: 0, Absent

10/25/2019

Hello! Here is your last pollen report of the season, your average counts for the week of 10/17-10/24:

Trees: 0, Absent

Weeds: 4, Low (Sage)

Grass: 0, Absent

Thank you all for a great season! Have a wonderful fall and winter and I'll be back with reports March 2020!

10/16/2019

Hey folks! It's definitely looking like Autumn out there! Also under the microscope: there's hardly any pollen! I will send our last pollen report of the year next week. Below are your average pollen counts for the week of 10/8-10/15:

Trees: 0, Absent

Weeds: 1, Low (Sage)

Grass: 0, Absent

Thanks!

10/8/2019

Technical difficulties. Next report will be the 16th.

9/29/2019

Hello from a snowy Missoula! I've been enjoying our odd winter weather! Below are your average pollen counts for 9/20-9/27:

Trees: 1, Low (Pine)

Weeds: 4, Low (Sage)

Grass: 1, Low

Thanks!

9/23/2019

Hello folks! I was out of town all last week so finally catching up! Your average pollen counts for the week of 9/13-9/20 are below:

Trees: 1, Low (Plantago)

Weeds: 8, Low (Mostly Sage but also Ragweed and Pigweed)

Grass: 0, Low

Thanks!

9/15/2019

Hello! Below are your average pollen counts for the week of 9/6-9/13:

Trees: 1, Low (Pine)

Weeds: 1, Low (Sage)

Grass: 0, Absent

Thanks!

9/8/2019

Hello on a rainy Sunday! Below are your average pollen counts for the week of 8/30-9/6:

Trees: 0, Absent

Weeds: 9, Low (Pigweed and Sage)

Grass: 0, Absent

Thanks!

8/30/2019

Hello folks! Not a lot of pollen showing up out there this week. Below are your average pollen counts for the week of 8/22-8/29:

Trees: 0, Absent (that doesn't happen often!)

Weeds: 3, Low (Pigweed and Ragweed)

Grass: 1, Low

Thanks!

8/22/2019

Below are your average pollen counts for the week of 8/14-8/21:

Trees: 1, Low (Pine)

Weeds: 5, Low (Pigweed, Ragweed, Sage)

Grass: 0, Absent

Thanks!

8/14/2019

Hello! Rain lately has our counts lower than normal (and more mold popping up!). Below are your average pollen counts for the week of 8/6-8/13:

Trees: 5, Low (Pine with one Willow spotted)

Weeds: 4, Low (Pigweed and Ragweed)

Grass: 1, Low

Thanks!

8/6/2019

Hello folks! Below are your average pollen counts for the week of 7/29-8/5. Not seeing a ton this last week, but a few odd balls thrown in for sure.

Trees: 10, Low (Predominantly Pine, also Linden and a random Walnut)

Weeds: 4, Low (Ragweed, Pigweed, Sage, Greasewood, Spirea)

Grass: 1, Low

Thanks!

7/29/2019

Hello folks! I am back from breathing in many foreign pollen types from vacation! Below are your two pollen reports from the last two weeks. Thank you for your patience! Note too that I'm seeing a lot of mold show up on the slides, in the late evening/early morning time periods.

Average counts for the week of 7/11-7/18:

Trees: 34, Moderate (Predominantly Pine and Linden, also some Juniper and Platanus)

Weeds: 1, Low (Pigweed)

Grass: 9, Moderate

Average counts for the week of 7/18-7/25:

Trees: 13, Low (Predominantly Pine and Linden, also seeing some Juniper and Platanus)

Weeds: 5, Low (Pigweed and Ragweed)

Grass: 6, Moderate

Thank you!

7/15/2019

Hi folks! Below are your average pollen counts for the week of 7/5-7/12. Note that our weeds have already started and I'm seeing some Linden tree as well. Early!! We've had a fair amount of mold showing up on the slides too.

Trees: 35, Moderate (Predominantly Pine, also Oak, Linden)

Weeds: 8, Low (Sage, Ragweed, Pigweed)

Grass: 3, Low

Thanks! I will be in California for the rest of the week, so the next pollen report will be sent around the 24th. Thank you for your patience!

7/5/2019

Hello folks! I hope you had a wonderful 4th of July! Below are your average pollen counts for the week of 6/26-7/4:

Trees: 50, Moderate (Predominantly Pine, also Oak, Juniper and Platanus)

Weeds: 5, Low (They're here! Pigweed and Sage)

Grass: 16, Moderate

Thanks!

6/27/2019

Hello! The rain lately is keeping our pollen numbers pretty low. Below are your average pollen counts for the week of 6/18-6/25:

Trees: 29, Moderate (Predominantly Pine, also Oak, Platanus, Privet, Alder and Juniper)

Weeds: 1, Low (Pigweed)

Grass: 5, Moderate

Thanks!

6/20/2019

Hello folks! Below are your average pollen counts for the week of 6/11-6/18:

Trees: 93, High (Predominantly Pine, also Alder, Oak, Willow and a little Juniper

Weeds: 0, Absent

Grass: 24, High

Thanks!

6/11/2019

Hello! Below are your average pollen counts for the week of 6/4-6/11:

Trees: 87, Moderate (Predominantly Pine, also seeing Alder, Oak, Willow, Walnut, Chestnut, Chestnut)

Weeds: 0, Absent

Grass: 12, Moderate

Thanks!

6/5/2019

Hello! Below are your average pollen counts for the week of 5/28-6/4:

Trees: 167, High (Predominantly Pine, also Alder, Oak and Willow)

Weeds: 0, Absent

Grass: 7, Moderate

Thanks!

5/28/2019

Hi folks! Below are your average pollen counts for the week of 5/20-5/27:

Trees: 82, Moderate (Predominantly Oak, also Pine, Alder, Birch, Maple, Juniper, and Willow)

Weeds: 0, Absent

Grass: 1, Low (It's starting!!! Ahhhh!)

Thanks!

5/20/2019

Hello! Below are your average pollen counts for the week of 5/13-5/20:

Trees: 181, High (Predominantly Oak, Maple and Juniper, also seeing Birch, Ash, Pine, Willow and Alder)

Weeds: 0, Absent

Grass: 0, Absent

5/17/2019

Hello folks! I was out in Idaho last week, so here are your pollen counts for the week of 5/3-5/10:

Trees: 129, High (Predominantly Ash and Juniper, also seeing Maple, Birch, Poplar, Elm, Pine, Oak and Mulberry)

Weeds: 0, Absent

Grass: 0, Absent

Your next set of counts will be sent on Monday! Thanks!

5/2/2019

Hello! Below are your average pollen counts for the week of 4/24-5/1:

Trees: 41, Moderate (Poplar, Juniper, Ash, Maple, Birch, Pine, Larch)

Weeds: 1, Low (Unidentified weed)

Grass: 0, Absent

5/1/2019

Hey folks! Technical difficulties got me behind, so here is LAST WEEK'S average counts. You'll get the most recent week's counts TOMORROW. Thanks!

For 4/15-4/22:

Trees: 127, High (Seeing Poplar, Elm, Juniper, Maple, Alder, Pine and Birch)

Weeds: 0, Absent

Grass: 0, Absent

4/17/2019

Hello folks! Below are your average pollen counts for the week of 4/8-4/16:

Trees: 16, Moderate (Predominantly Poplar and Elm, also Juniper, Pine, Birch and Alder)

Weeds: 0, Absent

Grass: 0, Absent

Happy Spring! 4/8/2019

Our pollen station is now open! Expect the first set of pollen counts next week! Thanks!

10/10/2018

Hello! Below are your average pollen counts for the week of 10/2-10/9:

Trees: 2, Low (Pine)

Weeds: 2, Low (Sage)

Grass: 0, Absent

10/2/2018

Hello! Happy October! Forgive the delay, I was out of town. Here are the average pollen counts for the week of 9/21-9/28:

Trees: 3, Low (Pine and Juniper, which is odd!)

Weeds: 6, Low (Sage)

Grass: 0, Absent

Thanks! We'll keep reporting through the month of October unless the rains or snow start coming on strong.

9/25/2018

Hello! Happy Autumn! Below are your average pollen counts for the week of 9/14-9/21:

Trees: 0, Absent

Weeds: 10, Moderate (Sage and Pigweed)

Grass: 1, Low

Thanks!

9/14/2018

Hi folks! I finally received my supplies, so below are your most recent pollen counts, for the week of 9/7-9/14:

Trees: 0, Absent

Weeds: 2, Low (Pigweed and Sage)

Grass: 0, Absent

Thanks!

9/7/2018

Hi folks! A necessary material for making pollen slides is still on its way to me in the mail, so I won't have slides to count today. I'll update you early next week!
Sorry for the inconvenience!

8/31/2018

Hello! It's definitely staring to feel more like fall out there! Our pollen numbers are dropping too. Below are your average pollen counts for the week of 8/23-8/30:

Trees: 2, Low (Pine and Linden)

Weeds: 3, Low (Pigweed, Sage, Knapweed)

Grass: 1, Low

Thanks!

8/24/2018

Below are your average pollen counts for the week of 8/16-8/23:

Trees: 7, Low (Pine and Linden)

Weeds: 7, Low (Pigweed, Dock and Sage)

Grass: 1, Low

Also seeing a lot of mold!

8/16/2018

Hello! Below are your average pollen counts for the week of 8/9-8/16:

Trees: 3, Low (Pine and Linden)

Weeds: 3, Low (Ragweed, Pigweed and Aster)

Grass: 1, Low

Thanks!

8/3/2018

Hello! Let's hope that that smoky haze doesn't stick around for long! Below are your average pollen counts for the week of 7/26-8/2:

Trees: 3, Low (Pine and Linden)

Weeds: 4, Low (Pigweed, Sage and Aster)

Grass: 1, Low

Quite a bit of mold noted too!

Thanks!

7/26/2018

Hello! I am back in the state! Below are your most recent pollen counts for the week of 7/16-7/23:

Trees: 23, Moderate (Predominantly Linden with a few Pine)

Weeds: 3, Low (Dock, Pigweed, Heather)

Grass: 2, Low

Thanks folks!

7/9/2018

Hey folks! I hope you all enjoyed the 4th of July holiday! Below are your average pollen counts for the week of 6/28-7/5:

Trees: 18, Moderate (Predominantly Pine, also Plantain)

Weeds: 3, Low (Sage and Pigweed)

Grass: 6, Moderate

Thanks!

6/29/2018

Below are your average counts for the week of 6/21-6/28:

Trees: 15, Moderate (Predominantly Pine, also seeing Alder)

Weeds: 5, Low (Sage and Dock)

Grass: 4, Low

Still a lot of mold present!!

6/21/2018

Hi folks! I will be out tomorrow for a swing dance festival, so you're getting your counts a day early! Below are your average counts for the week of 6/15-6/21:

Trees: 8, Low (Predominantly Pine, also Alder, Walnut and Willow)

Weeds: 1, Low (Sage)

Grass: 3, Low

Lots of mold!!

6/18/2018

Happy Monday! Below are your average pollen counts for the week of 6/8-6/15. The rain has been keeping counts down:

Trees: 35, Moderate (Seeing Pine and Alder)

Weeds: 3, Low (Pigweed, Sage, Dock)

Grass: 2, Low

Thanks!

6/8/2018

Hello! Happy Friday! Below are your average pollen counts for the week of 6/1-6/8:

Trees: 84, Moderate (Predominantly Pine, also a lot of Alder and some Oak, Walnut and Privet)

Weeds: 0, Absent

Grass: 12, Moderate

6/1/2018

Those thunderstorms we've had lately are impressive! They're keeping our pollen totals down, but that soggy weather is giving us more mold sightings than normal. Below are your average pollen counts for the week of 5/25-6/1:

Trees: 94, High (Predominantly Pine and Alder, also seeing Birch, Oak, and Walnut)

Weeds: 2, Low (Pigweed and Dock)

Grass: 8, Moderate

5/25/2018

Hello folks! Well, it looks like our trees have slowed down, but our grass has begun! Below are your average pollen counts for the week of 5/16-5/23:

Trees: 101, High (Predominantly Pine and a lot of Oak, also seeing Birch, Alder, Juniper, and Ash

Grass: 2, Low

Weeds: 1, Low (Artemisia and a Plantain)

5/17/2018

The rain this last week has kept the average pollen lower, but we're still seeing quite a few. Mold popped up more often on our damp days too.
Here are your average counts for the week of 5/7-5/14:

Trees: 131, High (Predominantly Pine and Oak, also seeing Birch, Juniper, Ash, Elm, Larch, Alder, and Maple)

Weeds: 0, Absent

Grass: 0, Absent

5/8/2018

Below are your average pollen counts for the week of 4/3-5/7:

Trees: 212, Very High (Predominantly Ash and Birch, also seeing Alder, Maple, Larch, Pine, Oak, Juniper, Willow, Elm, Privet, Mulberry, and Poplar.)

Grass: 0, Absent

Weeds: 0, Absent

5/1/2018

Below are your average counts for the week of 4/20-4/30:

Trees: 133, High (Predominantly Poplar and Elm, also seeing Maple, Alder, Juniper, Birch, Larch, Privet and Willow.

Weeds: 1, Low (Randomly a Ragweed was on the slide, maybe a leftover from Fall)

Grass: 1, Low (Also hoping this is a leftover from Fall, but we'll see....)

________

Archived counts can be found on the NAB site!

image of emily weiler at SpectrUM presenting on pollen and air quality

Image: Emily Weiler giving a presentation at SpectrUM about air quality and pollen.