Best Time to See Ticks in Montana

May, June and April is the best time to see ticks in Montana. Based on 202 verified iNaturalist observations, here is exactly when ticks are most active across the year in Montana.

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By Tim, founder of Easy Street Markets. I maintain the wildlife database and verify every animal and source myself. Updated July 22, 2026.

American Dog Tick photographed in Montana

American Dog Tick · Nova Patch CC BY-SA

American Dog Tick photographed in Montana

American Dog Tick · Matthew Lindsey CC BY

Asian Longhorned Tick photographed in Montana

Asian Longhorned Tick · Zachary Dankowicz CC BY

Photos by iNaturalist observers, reused under the licence each observer chose.
Best months: May, June, April

202 verified observations of ticks in Montana, recorded across 8 months of the year on iNaturalist.

When ticks are recorded in Montana

Peak month

May

61 records (30.2% of the year)

Quietest month

September

No verified records

MonthObservationsShare
January10.5%
February10.5%
March125.9%
Aprilpeak4321.3%
Maypeak6130.2%
Junepeak5828.7%
July2512.4%
August10.5%
September00%
October00%
November00%
December00%

Ticks you are most likely to see

SpeciesVerified observations
Rocky Mountain Wood Tick85
American Dog Tick37
Lone Star Tick1
Brown Dog Tick1
Winter tick1

Weather to expect, source Open-Meteo

Typical weather in Montana

Recent typical conditions by month, so you can plan a trip around both when ticks are active and what the weather is doing. The best months to look for ticks sit around 24 to 65 degrees Fahrenheit, so pack for that.

MonthAvg highAvg lowRain
Jan29°F17°F1"
Feb22°F9°F1.5"
Mar33°F18°F1.1"
Aprbest time40°F24°F2.3"
Maybest time53°F36°F3.5"
Junbest time65°F47°F3.2"
Jul75°F55°F2"
Aug74°F54°F1.7"
Sep65°F46°F2.1"
Oct46°F31°F2"
Nov36°F23°F1"
Dec30°F18°F1"

Typical recent conditions (5-year means) from the Open-Meteo archive, averaged for Montana. Weather varies year to year, so treat these as a guide.

Sightings of ticks in Montana peak in May, when 61 of the year's 202 verified observations are logged — about 30.2% of the annual total. Activity stays high through May, June and April.

The quietest stretch is September, October and November, when ticks are hardest to find — no verified records exist for September. If a reliable sighting matters, plan around the peak window rather than the off-season.

The ticks you are most likely to encounter in Montana are Rocky Mountain Wood Tick, American Dog Tick and Lone Star Tick — the most-recorded species in the state. Each keeps its own seasonal rhythm, but the month-by-month pattern above reflects every reported sighting together.

Where to go

Best places to see ticks in Montana

  • Big Hole National BattlefieldNational Battlefield
  • Bighorn Canyon National Recreation AreaNational Recreation Area
  • Grant-Kohrs Ranch National Historic SiteNational Historic Site
  • Lewis & Clark National Historic TrailNational Historic Trail
  • Nez Perce National Historical ParkNational Historical Park
  • Yellowstone National ParkNational Park

Frequently asked questions

What is the best month to see ticks in Montana?+

May is the single best month, and the broader peak window runs through May, June and April, based on 202 verified iNaturalist observations.

When are ticks hardest to see in Montana?+

September is the quietest month for ticks in Montana, with no verified records on iNaturalist.

Are ticks active year-round in Montana?+

Ticks are recorded in 8 of 12 months in Montana, concentrated around May and June.