Pasco, WA
Climate overview — based on NOAA 1991-2020 normals from PASCO TRI CITIES AP, WA US.
Year-round temperatures (°F)
Climate summary
Pasco has an annual average temperature of 53.3°F with about 7.6 inches of precipitation per year. The warmest month is July (average high 92.5°F), and the coldest is December (average low 27.3°F). January is typically the wettest month (1.03 in) and July the driest (0.15 in).
Best time to visit Pasco
Full guide →Climate change signal
All-time records →163 of 366 (44.5%) of Pasco'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.
| 1940s | 16 | |
| 1990s | 29 | |
| 2000s | 106 | |
| 2010s | 101 | |
| 2020s | 114 |
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 | 41.4°F | 27.8°F | 34.6°F | 1.03 in | — | 10 |
| February | 48.6°F | 28.2°F | 38.4°F | 0.63 in | — | 8 |
| March | 58.6°F | 33.1°F | 45.8°F | 0.69 in | — | 8 |
| April | 67.0°F | 38.4°F | 52.7°F | 0.66 in | — | 7 |
| May | 76.5°F | 46.3°F | 61.4°F | 0.71 in | — | 7 |
| June | 83.1°F | 52.6°F | 67.8°F | 0.61 in | — | 5 |
| July | 92.5°F | 56.9°F | 74.7°F | 0.15 in | — | 2 |
| August | 90.7°F | 55.7°F | 73.2°F | 0.27 in | — | 2 |
| September | 80.9°F | 47.6°F | 64.2°F | 0.31 in | — | 3 |
| October | 65.8°F | 38.4°F | 52.1°F | 0.66 in | — | 6 |
| November | 49.9°F | 31.9°F | 40.9°F | 0.87 in | — | 9 |
| December | 41.0°F | 27.3°F | 34.1°F | 1.03 in | — | 10 |
Climate twins of Pasco
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).