Annual mean
Annual mean of daily highs
Annual mean of daily lows
Johnstown CDP, Wyoming
Official LSAD Designation: Johnstown CDP • Census GEOID: 5640945
• Fremont County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Johnstown CDP.
Reference Weather Station: PAVILLION, WY US (ID: USC00487115)
• Located 9.1 miles from community center
• Elevation: 1,670.3 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 33.5° | 9.9° | 21.7° | 0.27" |
| February | 37.8° | 13.5° | 25.6° | 0.28" |
| March | 50.2° | 23.4° | 36.8° | 0.43" |
| April | 57.9° | 30.8° | 44.4° | 1.07" |
| May | 67.0° | 40.0° | 53.5° | 2.09" |
| June | 77.2° | 47.7° | 62.4° | 1.14" |
| July | 85.8° | 54.7° | 70.3° | 0.73" |
| August | 83.2° | 52.9° | 68.1° | 0.56" |
| September | 73.7° | 44.0° | 58.8° | 0.87" |
| October | 59.0° | 32.0° | 45.5° | 0.74" |
| November | 43.8° | 19.1° | 31.4° | 0.35" |
| December | 32.6° | 9.4° | 21.0° | 0.28" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station PAVILLION, WY US (ID: USC00487115) • 9.1 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 | Unavailable | Unavailable | Unavailable |
| 2011 | 44.1 | 57.4 | 30.9 |
| 2012 | 48.6 | 61.6 | 35.6 |
| 2013 | 44.5 | 56.6 | 32.4 |
| 2014 | 44.3 | 56.4 | 32.3 |
| 2015 | 47.7 | 59.6 | 35.9 |
| 2016 | 49.7 | 62.9 | 36.5 |
| 2017 | 45.4 | 59.1 | 31.7 |
| 2018 | 44.7 | 58.9 | 30.4 |
| 2019 | 41.7 | 54.5 | 28.9 |
| 2020 | 45.3 | 59.4 | 31.3 |
| 2021 | 47.2 | 60.3 | 34.1 |
| 2022 | 44.3 | 57.3 | 31.4 |
| 2023 | 40.9 | 53.0 | 28.8 |
| 2024 | 45.9 | 59.3 | 32.6 |
| 2025 | 47.0 | 59.4 | 34.7 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.