Annual mean
Annual mean of daily highs
Annual mean of daily lows
Twisp town, Washington
Official LSAD Designation: Twisp town • Census GEOID: 5373080
• Okanogan County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Twisp town.
Reference Weather Station: WINTHROP 1 WSW, WA US (ID: USC00459376)
• Located 8.5 miles from community center
• Elevation: 533.1 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 29.9° | 15.4° | 22.6° | 2.06" |
| February | 38.4° | 18.0° | 28.2° | 1.28" |
| March | 50.0° | 25.4° | 37.7° | 1.23" |
| April | 61.1° | 32.2° | 46.7° | 0.84" |
| May | 71.1° | 39.7° | 55.4° | 1.13" |
| June | 76.7° | 45.9° | 61.3° | 1.09" |
| July | 85.8° | 50.8° | 68.3° | 0.69" |
| August | 85.6° | 49.3° | 67.5° | 0.45" |
| September | 77.0° | 41.2° | 59.1° | 0.45" |
| October | 60.9° | 31.9° | 46.4° | 1.37" |
| November | 41.2° | 24.5° | 32.9° | 2.03" |
| December | 29.2° | 15.4° | 22.3° | 2.57" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station WINTHROP 1 WSW, WA US (ID: USC00459376) • 8.5 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 | 47.0 | 59.6 | 34.4 |
| 2011 | 44.5 | 57.9 | 31.1 |
| 2012 | 45.8 | 58.9 | 32.7 |
| 2013 | 45.8 | 59.2 | 32.4 |
| 2014 | 46.5 | 59.9 | 33.1 |
| 2015 | 48.2 | 61.8 | 34.6 |
| 2016 | 47.0 | 59.8 | 34.1 |
| 2017 | 45.0 | 57.9 | 32.2 |
| 2018 | 46.5 | 59.6 | 33.4 |
| 2019 | 44.9 | 57.7 | 32.2 |
| 2020 | 46.8 | 60.1 | 33.5 |
| 2021 | 47.3 | 60.8 | 33.8 |
| 2022 | 45.0 | 58.4 | 31.6 |
| 2023 | 47.7 | 60.3 | 35.2 |
| 2024 | 48.1 | 61.1 | 35.1 |
| 2025 | 47.7 | 61.4 | 34.0 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.