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Weather & Climate

Hill County, Montana, United States

Overview

Climate data and monthly weather averages for Hill County.

Key Metrics

Annual Avg
7.2°C
Summer Avg
20.1°C
Winter Avg
-5°C
Record High
39.2°C
Record Low
-33.9°C
Annual Precipitation
404.9 mm
Avg Humidity
63%
Summer Humidity
50%
Winter Humidity
79%

Monthly Averages

MonthHigh (°C)Avg (°C)Low (°C)Rain (mm)Humidity (%)Sunshine (h)Wind (kph)
Jan12.7°-5.4°-33.9°18.681%4163.9
Feb16.4°-4.7°-33.1°17.476%6465.5
Mar25.6°-31.7°20.867%10866
Apr30°6.4°-12.8°38.759%14660.9
May32.7°12.3°-5.5°64.856%18263.6
Jun36.9°17.3°1.8°73.255%19958.8
Jul39.2°22.4°8.4°32.247%22150.4
Aug38.5°20.6°4.3°32.948%18048.7
Sep35.4°14.5°-5.9°3655%12654.9
Oct30.7°6.6°-12.5°30.764%8261.8
Nov20.2°0.3°-22.6°21.373%4566.6
Dec10.3°-4.9°-31°18.379%3161.8

Frequently Asked Questions

Sources: NASA POWER · Last updated: 2025

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