Annual mean
Annual mean of daily highs
Annual mean of daily lows
Gillette city, Wyoming
Official LSAD Designation: Gillette city • Census GEOID: 5631855
• Campbell County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Gillette city.
Reference Weather Station: GILLETTE 4SE, WY US (ID: USC00483855)
• Located 2.5 miles from community center
• Elevation: 1,414.3 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 36.2° | 15.8° | 26.0° | 0.59" |
| February | 37.6° | 16.8° | 27.2° | 0.78" |
| March | 48.7° | 24.8° | 36.7° | 1.13" |
| April | 56.4° | 31.7° | 44.1° | 2.13" |
| May | 65.9° | 41.0° | 53.4° | 3.27" |
| June | 77.0° | 50.2° | 63.6° | 2.54" |
| July | 86.4° | 57.0° | 71.7° | 1.68" |
| August | 85.4° | 55.7° | 70.6° | 1.38" |
| September | 75.3° | 46.4° | 60.8° | 1.25" |
| October | 59.2° | 34.4° | 46.8° | 1.57" |
| November | 46.2° | 24.1° | 35.2° | 0.63" |
| December | 35.8° | 16.1° | 25.9° | 0.64" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station GILLETTE 4SE, WY US (ID: USC00483855) • 2.5 miles from community center .
This is the same reference station used for monthly normals.
Source: NOAA NCEI Global Summary of the Year.
Annual temperature data table (°F)
| Year | Annual mean (°F) | Annual mean of daily highs (°F) | Annual mean of daily lows (°F) |
|---|---|---|---|
| 2010 | 46.7 | 60.3 | 33.1 |
| 2011 | 46.1 | 60.1 | 32.2 |
| 2012 | 49.8 | 65.2 | 34.4 |
| 2013 | Unavailable | Unavailable | Unavailable |
| 2014 | 45.9 | 58.3 | 33.5 |
| 2015 | 48.6 | 61.1 | 36.0 |
| 2016 | 49.2 | 62.1 | 36.2 |
| 2017 | 49.3 | 61.2 | 37.3 |
| 2018 | 46.8 | 58.8 | 34.8 |
| 2019 | 44.2 | 55.4 | 33.0 |
| 2020 | 48.0 | 61.2 | 34.8 |
| 2021 | 48.6 | 61.9 | 35.3 |
| 2022 | 46.7 | 59.8 | 33.6 |
| 2023 | 47.2 | 59.2 | 35.2 |
| 2024 | 49.4 | 63.2 | 35.6 |
| 2025 | 48.3 | 61.2 | 35.3 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.