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Weather & Climate

Teton County, Montana, United States

Overview

Climate data and monthly weather averages for Teton County.

Key Metrics

Annual Avg
4.1°C
Summer Avg
15.9°C
Winter Avg
-6.7°C
Record High
35.5°C
Record Low
-34.1°C
Annual Precipitation
634.8 mm
Avg Humidity
72%
Summer Humidity
58%
Winter Humidity
87%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan9.8°-6.4°-31.6°45.988%4355.5
Feb10.4°-6.7°-33.8°43.786%6753.9
Mar21.6°-2.2°-32.1°52.180%10749.5
Apr24.8°2.4°-19.5°62.172%13951.8
May28.2°8.1°-11.5°82.868%17240.5
Jun31.5°12.8°-2.4°9066%19338.1
Jul35.5°18°2.2°29.855%22633.8
Aug35.3°16.8°37.554%18435.9
Sep31°11.3°-10.4°46.561%12837.1
Oct25.5°-18.9°49.671%8143.9
Nov18.6°-1.9°-27.5°47.779%4451.4
Dec6.9°-6.9°-34.1°47.187%3350

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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