Annual mean
Annual mean of daily highs
Annual mean of daily lows
Alta CDP, Wyoming
Official LSAD Designation: Alta CDP • Census GEOID: 5601985
• Teton County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Alta CDP.
Reference Weather Station: ALTA 1 NNW, WY US (ID: USC00480140)
• Located 0.1 miles from community center
• Elevation: 1,962.9 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 29.0° | 11.8° | 20.4° | 2.49" |
| February | 32.0° | 13.5° | 22.7° | 1.84" |
| March | 40.0° | 20.8° | 30.4° | 2.10" |
| April | 48.1° | 27.3° | 37.7° | 2.49" |
| May | 60.1° | 35.5° | 47.8° | 3.01" |
| June | 69.1° | 42.3° | 55.7° | 2.31" |
| July | 78.8° | 48.5° | 63.7° | 1.38" |
| August | 78.2° | 47.2° | 62.7° | 1.38" |
| September | 68.5° | 39.7° | 54.1° | 1.85" |
| October | 53.3° | 30.2° | 41.8° | 2.06" |
| November | 38.5° | 19.8° | 29.2° | 1.93" |
| December | 28.3° | 11.7° | 20.0° | 2.14" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station ALTA 1 NNW, WY US (ID: USC00480140) • 0.1 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 | 39.7 | 51.0 | 28.3 |
| 2011 | 38.8 | 49.6 | 27.9 |
| 2012 | 42.4 | 54.1 | 30.8 |
| 2013 | 40.0 | 51.6 | 28.4 |
| 2014 | 41.3 | 52.4 | 30.3 |
| 2015 | 43.6 | 54.9 | 32.3 |
| 2016 | 42.4 | 54.0 | 30.8 |
| 2017 | 41.1 | 52.3 | 29.9 |
| 2018 | 40.9 | 52.3 | 29.4 |
| 2019 | 39.3 | 50.5 | 28.1 |
| 2020 | Unavailable | Unavailable | Unavailable |
| 2021 | 41.8 | 53.9 | 29.8 |
| 2022 | 39.1 | 51.3 | 27.0 |
| 2023 | 39.6 | 51.3 | 27.8 |
| 2024 | 41.2 | 53.4 | 29.0 |
| 2025 | 41.9 | 54.0 | 29.8 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.