St. John, WA
Climate overview — based on NOAA 1991-2020 normals from ST JOHN, WA US.
Year-round temperatures (°F)
Climate summary
St. John has an annual average temperature of 49.3°F with about 17.1 inches of precipitation per year and 26.6 inches of snow. The warmest month is July (average high 83.6°F), and the coldest is December (average low 27.9°F). December is typically the wettest month (2.38 in) and August the driest (0.34 in). Snow typically falls from November through April.
Best time to visit St. John
Full guide →Climate change signal
All-time records →28 of 366 (7.7%) of St. John'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.
| 1960s | 49 | |
| 1970s | 63 | |
| 1980s | 72 | |
| 1990s | 77 | |
| 2000s | 54 | |
| 2010s | 51 | |
| 2020s | 0 |
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 | 36.6°F | 28.7°F | 32.6°F | 2.05 in | 8.8 in | 14 |
| February | 41.3°F | 30.1°F | 35.7°F | 1.52 in | 2.7 in | 11 |
| March | 49.4°F | 34.1°F | 41.8°F | 1.90 in | 1.4 in | 12 |
| April | 57.2°F | 38.2°F | 47.7°F | 1.54 in | 0.4 in | 10 |
| May | 66.4°F | 44.8°F | 55.6°F | 1.56 in | — | 9 |
| June | 73.1°F | 49.7°F | 61.4°F | 1.12 in | — | 8 |
| July | 83.6°F | 54.4°F | 69.0°F | 0.43 in | — | 3 |
| August | 83.5°F | 53.3°F | 68.4°F | 0.34 in | — | 3 |
| September | 73.9°F | 46.7°F | 60.3°F | 0.56 in | — | 4 |
| October | 59.0°F | 38.6°F | 48.8°F | 1.50 in | 0.1 in | 9 |
| November | 44.0°F | 33.0°F | 38.5°F | 2.15 in | 2.5 in | 13 |
| December | 35.1°F | 27.9°F | 31.5°F | 2.38 in | 10.7 in | 14 |
Climate twins of St. John
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).