Kennewick, WA
Climate overview — based on NOAA 1991-2020 normals from KENNEWICK, WA US.
Year-round temperatures (°F)
Climate summary
Kennewick has an annual average temperature of 55.1°F with about 7.9 inches of precipitation per year. The warmest month is July (average high 91.3°F), and the coldest is January (average low 29.2°F). January is typically the wettest month (1.13 in) and August the driest (0.17 in).
Best time to visit Kennewick
Full guide →Climate change signal
All-time records →28 of 366 (7.7%) of Kennewick'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.
| 1890s | 40 | |
| 1900s | 34 | |
| 1910s | 58 | |
| 1920s | 17 | |
| 1930s | 43 | |
| 1940s | 31 | |
| 1950s | 6 | |
| 1960s | 22 | |
| 1970s | 21 | |
| 1980s | 27 | |
| 1990s | 18 | |
| 2000s | 17 | |
| 2010s | 11 | |
| 2020s | 21 |
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 | 41.7°F | 29.2°F | 35.5°F | 1.13 in | — | 11 |
| February | 48.1°F | 30.9°F | 39.5°F | 0.79 in | — | 8 |
| March | 58.1°F | 35.9°F | 47.0°F | 0.66 in | — | 8 |
| April | 66.3°F | 42.4°F | 54.3°F | 0.61 in | — | 7 |
| May | 75.3°F | 50.1°F | 62.7°F | 0.84 in | — | 6 |
| June | 82.0°F | 56.4°F | 69.2°F | 0.58 in | — | 5 |
| July | 91.3°F | 62.3°F | 76.8°F | 0.21 in | — | 2 |
| August | 90.3°F | 61.3°F | 75.8°F | 0.17 in | — | 2 |
| September | 80.5°F | 53.2°F | 66.8°F | 0.26 in | — | 3 |
| October | 65.9°F | 43.1°F | 54.5°F | 0.67 in | — | 6 |
| November | 50.9°F | 34.9°F | 42.9°F | 0.87 in | — | 9 |
| December | 41.5°F | 29.6°F | 35.6°F | 1.08 in | — | 11 |
Climate twins of Kennewick
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).