Annual mean
Annual mean of daily highs
Annual mean of daily lows
St. John town, Washington
Official LSAD Designation: St. John town • Census GEOID: 5360860
• Whitman County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for St. John town.
Reference Weather Station: ST JOHN, WA US (ID: USC00457267)
• Located 0.1 miles from community center
• Elevation: 595.0 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 36.6° | 28.7° | 32.6° | 2.05" |
| February | 41.3° | 30.1° | 35.7° | 1.52" |
| March | 49.4° | 34.1° | 41.8° | 1.90" |
| April | 57.2° | 38.2° | 47.7° | 1.54" |
| May | 66.4° | 44.8° | 55.6° | 1.56" |
| June | 73.1° | 49.7° | 61.4° | 1.12" |
| July | 83.6° | 54.4° | 69.0° | 0.43" |
| August | 83.5° | 53.3° | 68.4° | 0.34" |
| September | 73.9° | 46.7° | 60.3° | 0.56" |
| October | 59.0° | 38.6° | 48.8° | 1.50" |
| November | 44.0° | 33.0° | 38.5° | 2.15" |
| December | 35.1° | 27.9° | 31.5° | 2.38" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station ST JOHN, WA US (ID: USC00457267) • 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 | Unavailable | Unavailable | 38.5 |
| 2011 | 49.0 | 60.2 | 37.7 |
| 2012 | 50.4 | 62.3 | 38.5 |
| 2013 | 48.7 | 60.8 | 36.5 |
| 2014 | 50.7 | 62.4 | 39.0 |
| 2015 | Unavailable | Unavailable | Unavailable |
| 2016 | Unavailable | Unavailable | Unavailable |
| 2017 | Unavailable | Unavailable | Unavailable |
| 2018 | Unavailable | Unavailable | Unavailable |
| 2019 | Unavailable | Unavailable | Unavailable |
| 2020 | Unavailable | Unavailable | Unavailable |
| 2021 | Unavailable | Unavailable | Unavailable |
| 2022 | Unavailable | Unavailable | Unavailable |
| 2023 | Unavailable | Unavailable | Unavailable |
| 2024 | Unavailable | Unavailable | Unavailable |
| 2025 | Unavailable | Unavailable | Unavailable |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.