Gillette, WY Weather & Climate Normals
Gillette's real weather, in one number
Gillette, WY scores 43/100 on this site's reading of NOAA's own 30-year normals: strongly seasonal. Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. 4 of the year's 12 months average between 55 and 75°F, the range this site counts as mild.
Gillette's hottest and coldest months
Gillette's hottest month is Jul, averaging 71°F; its coldest is Jan, averaging 25°F, a 46.2°F swing across the year, one of the widest gaps in this dataset.
Gillette's weather across the year
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 36°F | 14°F | 0.33in |
| Feb | 37°F | 15°F | 0.43in |
| Mar | 48°F | 23°F | 0.83in |
| Apr | 55°F | 30°F | 1.6in |
| May | 65°F | 39°F | 2.63in |
| Jun | 77°F | 48°F | 2.03in |
| Jul | 87°F | 56°F | 1.52in |
| Aug | 86°F | 54°F | 0.97in |
| Sep | 75°F | 44°F | 0.98in |
| Oct | 59°F | 32°F | 1.38in |
| Nov | 46°F | 22°F | 0.52in |
| Dec | 36°F | 15°F | 0.36in |
Jun, Jul, Aug, and Sep are the best time to see Gillette at its mildest; the rest of the year, plan around Jan's cold.
Rain and snow in Gillette
Over a typical year, Gillette sees about 13.58in of precipitation a year across roughly 100 days with measurable rain or snow. That station has no snowfall reading, so none is shown rather than assumed.
Where Gillette ranks
Gillette ranks 3980 of 4876 US cities in this dataset for comfort score, and 4 of 16 within WY. About 33,846 people live there.
If you need tomorrow's forecast, not the 30-year average
Everything above is a 30-year average from Gillette Campbell Ap, WY US, 5.1 miles from Gillette, not a prediction for any specific day.
More on how this is worked out
Why some cities show no snow or rain figure · How the comfort score is calculated