Chelan, WA
Climate overview — based on NOAA 1991-2020 normals from CHELAN, WA US.
Year-round temperatures (°F)
Climate summary
Chelan has an annual average temperature of 50.1°F with about 12 inches of precipitation per year and 20.5 inches of snow. The warmest month is August (average high 87.0°F), and the coldest is January (average low 21.6°F). December is typically the wettest month (1.83 in) and August the driest (0.32 in). Snow typically falls from November through March.
Best time to visit Chelan
Full guide →Climate change signal
All-time records →113 of 366 (30.9%) of Chelan's all-time daily heat records have been set since 2015. If records were spread evenly across the station's history, only about 5% would fall in any given decade.
| 1950s | 14 | |
| 1960s | 48 | |
| 1970s | 59 | |
| 1980s | 37 | |
| 1990s | 36 | |
| 2000s | 42 | |
| 2010s | 57 | |
| 2020s | 73 |
Bars: number of all-time daily heat records still standing that were set in each decade.
Monthly averages
| Month | Avg High | Avg Low | Avg Temp | Precipitation | Snow | Rainy days |
|---|---|---|---|---|---|---|
| January | 34.3°F | 21.6°F | 28.0°F | 1.52 in | 7.7 in | 9 |
| February | 41.7°F | 24.3°F | 33.0°F | 1.22 in | 2.0 in | 7 |
| March | 51.9°F | 30.3°F | 41.1°F | 1.09 in | 0.7 in | 7 |
| April | 62.1°F | 37.5°F | 49.8°F | 0.75 in | — | 5 |
| May | 71.9°F | 46.2°F | 59.0°F | 1.05 in | — | 6 |
| June | 77.9°F | 53.0°F | 65.4°F | 0.87 in | — | 5 |
| July | 86.6°F | 59.1°F | 72.8°F | 0.42 in | — | 3 |
| August | 87.0°F | 58.1°F | 72.5°F | 0.32 in | — | 2 |
| September | 77.2°F | 49.2°F | 63.2°F | 0.34 in | — | 2 |
| October | 62.2°F | 38.8°F | 50.5°F | 1.04 in | — | 6 |
| November | 45.7°F | 29.5°F | 37.6°F | 1.51 in | 1.4 in | 9 |
| December | 34.9°F | 22.6°F | 28.7°F | 1.83 in | 8.7 in | 10 |
Climate twins of Chelan
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).