Carlton, OR Pollen Calendar

Here is the month-by-month allergy season for Carlton, OR, based on Oregon's seasonal pollen pattern. Right now, in July, Grass is usually the allergen to watch. The worst month is typically June, and the calmest is January. For the exact numbers today, check your live reading below.

Today in Carlton

Monday, July 27, 2026

Tree
None
Grass
Moderate
Weed
Moderate
See Carlton's full pollen report and 5-day forecast →

The Carlton Pollen Calendar, Month by Month

Each month is rated from Low to Very High, with the allergen that usually drives it. The current month is outlined.

Jan
Low
Quiet
Feb
Moderate
Alder
Mar
High
Alder
Apr
High
Birch
May
High
Grass
Jun
Very High
Grass
Jul
High
Grass
Aug
Moderate
Grass
Sep
Low
Ragweed
Oct
Low
Quiet
Nov
Low
Quiet
Dec
Low
Quiet

What's Active in July

These allergens are usually in the air around Carlton this month:

GrassHigh

Typical peak timing this month: early July to mid July.

The Worst and Best Months in Carlton

Carlton's pollen usually peaks in June, driven by Grass. If your allergies flare on the same weeks every year, that is usually why. The calmest month is typically January.

Oregon has an early tree season and an intense grass season in the Willamette Valley in late spring and early summer.

A pollen calendar shows the usual pattern, but weather shifts it. A warm winter pulls tree season earlier, and a late frost stretches ragweed into November. Start any allergy medication a week or two before your worst month, and check the daily count to catch the spikes. If symptoms hit hard every season, an allergist in Oregon can help with testing and longer-term options like allergy shots.

Keep Track of Pollen in Carlton

The calendar tells you what to expect. Your daily report tells you what's actually happening:

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We send a free email whenever pollen is High or Very High in Carlton. No spam, no daily emails when pollen is low. Just a heads-up on the days that matter.

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Seasonal pattern based on Oregon pollen data. Today's reading updated daily. MyPollenPal