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

8/8/2022

Hello! Below are your average pollen counts for the week of 7/29-8/5:

Trees: 5, Low (Predominantly Pine, also seeing Juniper and Linden)

Weeds: 5, Low (Predominantly Spirea, also seeing Pigweed and Dock)

Grass: 4, Low

7/29/2022

Hello! I was able to get in and throw some slides under the 'scope! Here are your average counts for the week of 7/22-7/29:

Trees: 8, Low (Predominantly Pine, also some Juniper and Willow)

Weeds: 12, Moderate (Pigweed, Sage, Dock, Spirea, Knapweed, and Plantain)

Grass: 6, Moderate

7/22/2022

Hello! Below are your average pollen counts for the week of 7/15-7/22:

Trees: 8, Low (Predominantly Pine, also seeing Juniper, Hornbeam and Linden)

Weeds: 4, Low (Predominantly Spirea, also seeing Pigweed, Sage and Dock)

Grass: 7, Moderate

7/17/2022

We saw quite the grab bag of pollen this last week! Below are your average counts for 7/8-7/15.

Trees: 36, Moderate (Predominantly Pine, also seeing Alder, Oak, Platanus, Hornbeam, and Juniper)

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

Grass: 18, Moderate

7/8/2022

Hello! Below are your average pollen counts for the week of 7/1-7/8. Our weeds are popping up!

Trees: 35, Moderate (Predominantly Pine, also seeing some Willow, Oak, Platanus and a random Ash!)

Weeds: 3, Low (Rageed, Sage and Dock)

Grass: 20, High

7/1/2022

Hello! Below are your average pollen counts for the week of 6/24-7/1:

Trees: 81, Moderate (Predominantly Pine, also seeing Alder, Willow, Oak, Platanus, and Hornbeam)
Weeds: 2, Low (Dock and Cattail)
Grass: 27, High

Have a great holiday weekend!

6/29/2022

Hello! Please forgive the delay! Below are your average pollen counts for the week of 6/17-6/24. Your next count will be this Friday.

Trees: 72, Moderate (Predominantly Pine, also seeing Alder, Juniper, Platanus, Hornbeam, Walnut and Willow)
Weeds: 2, Low (Dock)
Grass: 39, High

Thanks!

6/17/2022

Hello and happy Friday! I hope you’re all enjoying the warm weather! Below are your average pollen counts for the week of 6/10-6/17:

Trees: 68, Moderate (Predominantly Pine, also seeing Oak, Alder, Juniper, Hornbeam and Plantain
Weeds: 1, Low (Wood Rush)
Grass: 33, High!

6/13/2022

Hello! Between all of this rain there are some pollen grains showing up on my slides! See below for your average counts for the week of 6/2-6/10:

Trees: 24, Moderate (Predominantly Pine, also seeing Alder and Oak)
Weeds: 0, Absent
Grass: 2, Low

6/3/2022

Hello! Happy Friday! Below are your average pollen counts for the week of 5/26-6/2/22. Pretty normal stuff but was surprised to see some American Hornbeam!

Trees: 67, Moderate (Predominantly Oak, also seeing Pine, Birch, Larch, Willow, Maple, (and Hornbeam!)
Weeds: 0, Absent
Grass: 0, Absent

5/26/2022

Hello! Below are your average pollen counts for the rainy week of 5/20-5/26/22:

Trees: 46, Moderate (Predominantly Oak, also seeing Pine, Maple, Larch, Birch, Ash, Poplar and Willow)
Weeds: 0, Absent
Grass: 1, Low (the grass season has begun!)

5/20/2022

Hello! Below are your average pollen counts for the week of 5/14-5/20:

Trees: 78, Moderate (Predominantly Pine, also seeing Maple, Birch, Ash, Oak, Larch, Willow, Poplar, and Elm)
Weeds: 0, Absent
Grass: 0, Absent

Thanks!

5/6/2022

Hello! Here are two weeks’ worth of average pollen counts for you!

Week of 4/29-5/6/22:
Trees: 154, High (Predominantly Ash, also seeing Juniper, Maple, Alder, Birch, Larch, Pine, Poplar, Oak, Willow, Elm)
Weeds: 2, Low (Pollen seen looks just like Rumex, but is too early. Will investigate to see if this weed is actually present early or if there’s a new pollen masquerading as Rumex)
Grass: 0, Absent

Week of 4/22-4/29/22:
Trees: 91, High (Predominantly Juniper, also seeing Poplar, Ash, Elm, Maple, Alder, Willow, Pine, Birch and Larch
Weeds: 1, Low (Pollen seen looks just like Rumex, but is too early. Will investigate to see if this weed is actually present early or if there’s a new pollen masquerading as Rumex).
Grass: 0, Absent

4/22/2022

Hello! This week showed unseasonably low counts! Below are your average counts for the week of 4/15-4/22:

Trees: 5, Low (Poplar, Elm and Juniper)
Weeds: 0, Absent
Grass: 0, Absent

4/15/2022

Hello! Pollen is down a little this week because, well, IT SNOWED. Gotta love Montana spring! Below are your average counts for the week of 4/6-4/13:

Trees: 58, Moderate (Predominantly Juniper, also seeing Alder, Poplar, Pine, Pine and Willow)
Weeds: 0, Absent
Grass: 0, Absent

4/7/2022

Hello! All of our trees are out to play right now! Lots of variety in the pollen count! Below are your average counts for the week of 3/30-4/6:

Trees: 63, Moderate (Predominantly Juniper, also seeing Alder, Maple, Larch, Pine, Poplar, Elm, Willow and Birch)
Weeds: 0, Absent
Grass: 0, Absent

3/30/2022

We're back!

Below is your average pollen counts for the week of 3/22-3/29! Expect count reports every week until the fall. Good luck with your allergies!

Trees: 118, High (Predominantly Juniper, also Elm, Poplar and Alder)
Weeds: 0, Absent
Grass: 0, Absent

Archived counts can be found on the NAB site!

Old Counts

Old Counts 2021

11/1/2021

We are closed for the season! Check back for pollen counts in March 2022! Thanks!

10/22/2021

Trees: 1, Low (Pine)
Weeds: 2, Low (Sage and Pigweed)
Grass: 0, Absent

10/15/2021

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

10/8/2021

Hello! Below are your average pollen counts for the week of 9/24-10/1:

Trees: 2, Low (Pine and Tilia)
Weeds: 13, Moderate (Pigweed, Sage and Ragweed)
Grass: 0, Absent

Thanks!

9/29/2021

Hello! Below are your average pollen counts for the week of 9/17-9/24:

Trees: 1, Low (Pine)
Weeds: 4, Low (Ragweed, Pigweed and Sage)
Grass: 1, Low

Thanks!

8/18/2021

Hello! Below are your average pollen counts for the week of 8/6-8/13:

Trees: 1, Low (Pine and Linden)
Weeds: 8, Low (Dock, Knapeed, Plantago, Ragweed and Aster)
Grass: 1, Low

Thanks!

8/9/2021

Hello! Our station is back up and running! Below are your average pollen counts for the last weeks:

July 20-27:

Trees: 5, Low (Pine)
Weeds: 5, Low (Knapweed, Pigweed, Aster)
Grass: 2, Low

July 27-Aug 6:
Trees: 5, Low (Pine and Plantanus)
Weeds: 3, Low (Pigweed and Aster)
Grass: 1, Low

Thanks!!

7/26/2021

Hello! I was out of the office last week, so here are your belated, average pollen counts for the week of 7/8-7/15:

Trees: 11, Low (Predominantly Pine, also seeing Linden and Alder)
Weeds: 3, Low (Pigweed and Nettle)
Grass: 0, Absent

Thanks!

7/16/2021

Hello! Amidst the smoke the pollen is still flying! Below are your average pollen counts for the week of 7/7-7/14:

Trees: 20, Moderate (Predominantly Linden, also seeing Pine, Juniper, Alder and Oak)
Weeds: 3, Low (Pigweed, Sage)
Grass: 7, Moderate

Thanks!

7/9/2021

Here are your average pollen counts for the week of 6/30-7/7:

Trees: 29, Moderate (predominantly Pine, also seeing Linden, Juniper, Ash and Walnut)

Weeds: 2, Low (Pigweed and Sage)

Grass: 2, Low

7/1/2021

Hello! I hope you’re all staying cool out there! Below are your average pollen counts for the week of 6/23-6/30:

Trees: 83, Moderate (Predominantly Pine, also seeing Alder, Juniper, Willow and Oak)
Weeds: 3, Low (Ragweed, Sage and Dock)
Grass: 27, High

Thanks! Have a great holiday weekend!

6/24/2021

Hello! Here are your average pollen counts for the week of 6/16-6/23:

Trees: 107, High (Predominantly Pine, also seeing Alder, Juniper and Oak)
Weeds: 3, Low (Dock)
Grass: 10, Moderate

Thanks! Stay cool out there!

6/15/2021

Hello! Below are your average pollen counts for the week of 6/8-6/15:

Trees: 82, Moderate (Predominantly Pine, also seeing Alder, Oak, Walnut and Juniper)
Weeds: 4, Low (Pigweed and Dock)
Grass: 7, Moderate

6/9/2021

Hello! Below are your average pollen counts for the week of 6/1-6/8/21. Pine is in full swing and Alder has joined the party!

Trees: 180, High (Predominantly Pine, a lot of Alder and also seeing Maple, Oak, Birch, Walnut and Mulberry)
Weeds: 2, Low (Pigweed and Dock)
Grass: 13, Moderate

6/3/2021

Hello! It’s been toasty in Missoula this week. Feels like summer! Below are your pollen counts for the week of May 25-June 1:

Trees: 48, Moderate (Predominantly Pine, also seeing Oak and Maple)
Weeds: 0, Absent
Grass: 2, Low

5/26/2021

Hello! All of this rain lately has our pollen counts lower than last week. You’ll find your average counts below for the week of 5/17-5/24:

Trees: 34, Moderate (Predominantly Oak, also seeing Juniper, Pine, Maple and Willow)
Weeds: 0, Absent
Grass: 0, Absent

5/19/2021

Hello! Here are your average pollen counts for the week of 5/10-5/17:

Trees: 123, High (Predominantly Oak, also Poplar, Juniper, Ash, Willow, Elm, Birch, Maple, Larch, Pine and Linden)

Weeds: 1, Low (Pigweed)

Grass: 1, Low

5/10/2021

Hello! Your pollen lady will be away from the office the rest of the week so you get your pollen report a bit early. Below are your average counts for the week of 5/5-5/10. Pine has finally joined the party and we even saw some sneaky grass and a dandelion!

Trees: 54, Moderate (Predominantly Birch, also Maple, Adler, Oak, Willow, Juniper, Ash, Larch, Pine, Poplar and Elm)

Weeds: 1, Low (Dandelion)

Grass: 2, Low

Thanks!

5/6/2021

Hello on this 80 degree day in Missoula! There is a lot of pollen out there this week, though we’re still not seeing any Pine! Where is it?!

Below are your average counts for the week of 4/27-5/4:

Trees: 210, High (Predominantly Ash, also Juniper, Maple, Alder, Larch, Elm, Poplar, Willow, and Birch)

Weeds: 0, Absent

Grass: 2, Low

Thanks!

4/27/2021

Hello! Below are your average pollen counts for the week of 4/20-4/27:

Trees: 41, Moderate (Maple, Ash, Poplar, Elm, Juniper, Willow and a little Birch)

Weeds: 0, Absent

Grass: 0, Absent

Thanks!

4/21/2021

Hello! Below are your average pollen counts for the week of 4/13-4/20:

Trees: 45, Moderate (Predominantly Juniper, also seeing Ash, Poplar, Elm, Maple, Willow, Oak and Pine)

Weeds: 0, Absent

Grass: 0, Absent

Thanks!

4/14/2021

Hello! I bet you were all on the edges of your seats wondering where the Tuesday pollen report was! Right?? Ok, maybe not.

Here are your average pollen counts for the week of 4/5-4/12:

Trees: 67, Moderate (Predominantly Juniper, also Elm, Maple, Alder, Ash, Birch, Poplar and Willow)

Weeds: 0, Absent

Grass: 0, Absent

Thank you!

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

2020

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

10/8/2019

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!)

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

2018

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:

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.