Porterville, CA
Climate overview — based on NOAA 1991-2020 normals from PORTERVILLE, CA US.
Year-round temperatures (°F)
Climate summary
Porterville has an annual average temperature of 65.7°F with about 11 inches of precipitation per year. The warmest month is July (average high 98.4°F), and the coldest is December (average low 38.8°F). January is typically the wettest month (2.08 in) and August the driest (0.00 in).
Best time to visit Porterville
Full guide →Climate change signal
All-time records →0 of 366 (0%) of Porterville'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.
| 1900s | 29 | |
| 1910s | 67 | |
| 1920s | 59 | |
| 1930s | 44 | |
| 1940s | 13 | |
| 1950s | 34 | |
| 1960s | 29 | |
| 1970s | 24 | |
| 1980s | 24 | |
| 1990s | 29 | |
| 2000s | 14 |
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 | 59.1°F | 39.7°F | 49.4°F | 2.08 in | — | 9 |
| February | 64.6°F | 43.1°F | 53.9°F | 1.92 in | — | 9 |
| March | 70.5°F | 46.6°F | 58.5°F | 2.04 in | — | 7 |
| April | 76.0°F | 49.7°F | 62.9°F | 0.95 in | — | 5 |
| May | 84.1°F | 56.3°F | 70.2°F | 0.34 in | — | 2 |
| June | 92.7°F | 62.5°F | 77.6°F | 0.10 in | — | 1 |
| July | 98.4°F | 68.4°F | 83.4°F | 0.05 in | — | 0 |
| August | 97.1°F | 66.7°F | 81.9°F | 0.00 in | — | 0 |
| September | 92.3°F | 62.3°F | 77.3°F | 0.06 in | — | 1 |
| October | 82.0°F | 53.4°F | 67.7°F | 0.55 in | — | 2 |
| November | 68.4°F | 44.3°F | 56.3°F | 0.95 in | — | 5 |
| December | 59.2°F | 38.8°F | 49.0°F | 1.93 in | — | 8 |
Climate twins of Porterville
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).