Casa Grande, AZ
Climate overview — based on NOAA 1991-2020 normals from CASA GRANDE, AZ US.
Year-round temperatures (°F)
Climate summary
Casa Grande has an annual average temperature of 72.4°F with about 7.9 inches of precipitation per year. The warmest month is July (average high 106.8°F), and the coldest is December (average low 38.4°F). August is typically the wettest month (1.52 in) and May the driest (0.18 in).
Best time to visit Casa Grande
Full guide →Climate change signal
All-time records →35 of 366 (9.6%) of Casa Grande'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 | 0 | |
| 1900s | 107 | |
| 1910s | 25 | |
| 1920s | 13 | |
| 1930s | 48 | |
| 1940s | 23 | |
| 1950s | 33 | |
| 1960s | 6 | |
| 1970s | 13 | |
| 1980s | 24 | |
| 1990s | 11 | |
| 2000s | 28 | |
| 2010s | 0 | |
| 2020s | 35 |
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 | 68.7°F | 39.1°F | 53.9°F | 0.79 in | — | 4 |
| February | 72.6°F | 41.5°F | 57.0°F | 1.00 in | — | 4 |
| March | 79.9°F | 47.2°F | 63.6°F | 0.76 in | — | 3 |
| April | 87.5°F | 53.0°F | 70.3°F | 0.21 in | — | 1 |
| May | 96.4°F | 60.4°F | 78.4°F | 0.18 in | — | 1 |
| June | 105.8°F | 69.9°F | 87.9°F | 0.18 in | — | 1 |
| July | 106.8°F | 78.1°F | 92.5°F | 0.91 in | — | 3 |
| August | 105.3°F | 77.3°F | 91.3°F | 1.52 in | — | 5 |
| September | 100.4°F | 70.7°F | 85.5°F | 0.72 in | — | 3 |
| October | 90.7°F | 56.9°F | 73.8°F | 0.48 in | — | 2 |
| November | 77.5°F | 45.3°F | 61.4°F | 0.43 in | — | 2 |
| December | 67.6°F | 38.4°F | 53.0°F | 0.73 in | — | 4 |
Climate twins of Casa Grande
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).