Granite Falls, WA
Climate overview — based on NOAA 1991-2020 normals from ARLINGTON, WA US.
Year-round temperatures (°F)
Climate summary
Granite Falls has an annual average temperature of 49.1°F with about 49 inches of precipitation per year and 4.3 inches of snow. The warmest month is August (average high 77.7°F), and the coldest is December (average low 27.9°F). November is typically the wettest month (7.15 in) and July the driest (1.15 in). Snow typically falls from November through March.
Best time to visit Granite Falls
Full guide →Climate change signal
All-time records →224 of 366 (61.2%) of Granite Falls'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.
| 1920s | 3 | |
| 1930s | 2 | |
| 1940s | 0 | |
| 1950s | 0 | |
| 1960s | 0 | |
| 1970s | 37 | |
| 1980s | 0 | |
| 1990s | 0 | |
| 2000s | 0 | |
| 2010s | 313 | |
| 2020s | 11 |
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 | 47.4°F | 28.6°F | 38.0°F | 5.92 in | 0.8 in | 20 |
| February | 50.5°F | 28.0°F | 39.3°F | 4.42 in | 0.7 in | 16 |
| March | 54.2°F | 31.5°F | 42.9°F | 5.00 in | 0.4 in | 19 |
| April | 59.8°F | 35.3°F | 47.6°F | 4.34 in | — | 17 |
| May | 66.7°F | 40.9°F | 53.8°F | 3.43 in | — | 13 |
| June | 71.0°F | 45.4°F | 58.2°F | 2.66 in | — | 12 |
| July | 77.3°F | 47.9°F | 62.6°F | 1.15 in | — | 6 |
| August | 77.7°F | 47.1°F | 62.4°F | 1.34 in | — | 6 |
| September | 72.0°F | 42.2°F | 57.1°F | 2.49 in | — | 10 |
| October | 60.8°F | 36.9°F | 48.9°F | 4.94 in | — | 16 |
| November | 52.2°F | 31.2°F | 41.7°F | 7.15 in | 0.2 in | 20 |
| December | 46.1°F | 27.9°F | 37.0°F | 6.15 in | 2.2 in | 20 |
Climate twins of Granite Falls
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).