Annual mean
Annual mean of daily highs
Annual mean of daily lows
Nespelem town, Washington
Official LSAD Designation: Nespelem town • Census GEOID: 5348540
• Okanogan County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Nespelem town.
Reference Weather Station: COULEE DAM 1 SW, WA US (ID: USC00451767)
• Located 14.7 miles from community center
• Elevation: 524.0 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 32.7° | 23.3° | 28.0° | 1.15" |
| February | 39.5° | 25.3° | 32.4° | 0.88" |
| March | 50.7° | 31.5° | 41.1° | 1.07" |
| April | 60.6° | 37.7° | 49.2° | 0.97" |
| May | 70.8° | 45.8° | 58.3° | 1.11" |
| June | 77.8° | 52.0° | 64.9° | 1.15" |
| July | 87.6° | 59.4° | 73.5° | 0.49" |
| August | 86.9° | 58.3° | 72.6° | 0.33" |
| September | 76.8° | 50.5° | 63.7° | 0.36" |
| October | 60.2° | 40.1° | 50.1° | 0.94" |
| November | 43.0° | 30.9° | 37.0° | 1.20" |
| December | 33.1° | 23.9° | 28.5° | 1.42" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station COULEE DAM 1 SW, WA US (ID: USC00451767) • 14.7 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 | 50.1 | 59.7 | 40.4 |
| 2011 | 48.7 | 58.8 | 38.5 |
| 2012 | 50.4 | 60.5 | 40.4 |
| 2013 | 49.9 | 60.0 | 39.9 |
| 2014 | 51.1 | 61.0 | 41.1 |
| 2015 | 53.0 | 63.1 | 42.9 |
| 2016 | 51.6 | 61.3 | 41.8 |
| 2017 | 49.1 | 58.8 | 39.4 |
| 2018 | 50.8 | 60.9 | 40.7 |
| 2019 | 48.7 | 58.0 | 39.3 |
| 2020 | 51.0 | 61.4 | 40.7 |
| 2021 | 51.9 | 62.4 | 41.4 |
| 2022 | 48.7 | 58.6 | 38.7 |
| 2023 | 51.3 | 60.9 | 41.6 |
| 2024 | 51.9 | 61.6 | 42.1 |
| 2025 | 52.6 | 62.8 | 42.3 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.