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Weather & Climate
Sheridan County, Montana, United States
Overview
Climate data and monthly weather averages for Sheridan County.
Key Metrics
Annual Avg
6.2°C
Summer Avg
20.6°C
Winter Avg
-8.4°C
Record High
41.6°C
Record Low
-36.6°C
Annual Precipitation
408.3 mm
Avg Humidity
66%
Summer Humidity
54%
Winter Humidity
83%
Monthly Averages
| Month | High (°C) | Avg (°C) | Low (°C) | Rain (mm) | Humidity (%) | Sunshine (h) | Wind (kph) |
|---|---|---|---|---|---|---|---|
| Jan | 12.1° | -9.3° | -36.6° | 14.3 | 86% | 50 | 63.3 |
| Feb | 17.3° | -8.3° | -35.3° | 12 | 80% | 77 | 73.8 |
| Mar | 25° | -0.7° | -32.1° | 19.2 | 69% | 120 | 68 |
| Apr | 31.6° | 6° | -17.5° | 31.8 | 59% | 147 | 65.2 |
| May | 33.6° | 12.7° | -5.3° | 65.7 | 56% | 184 | 73.6 |
| Jun | 38° | 18.3° | 2.8° | 79.2 | 57% | 194 | 51.9 |
| Jul | 41.6° | 22.7° | 7.8° | 49.6 | 52% | 212 | 72.4 |
| Aug | 40.5° | 20.9° | 5.1° | 41.9 | 53% | 174 | 56.7 |
| Sep | 36° | 14.7° | -3.6° | 38.1 | 58% | 123 | 53.4 |
| Oct | 28.7° | 6° | -15.2° | 26 | 66% | 82 | 64.5 |
| Nov | 20.4° | -1.1° | -23.7° | 14.7 | 75% | 48 | 68.6 |
| Dec | 10.9° | -7.5° | -34.2° | 15.8 | 84% | 36 | 58.9 |
Frequently Asked Questions
Sources: NASA POWER · Last updated: 2025
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