Surprise, AZ
Climate overview — based on NOAA 1991-2020 normals from WITTMANN 1SE, AZ US.
Year-round temperatures (°F)
Climate summary
Surprise has an annual average temperature of 70.2°F with about 9.6 inches of precipitation per year. The warmest month is July (average high 104.6°F), and the coldest is December (average low 39.0°F). February is typically the wettest month (1.45 in) and June the driest (0.07 in).
Best time to visit Surprise
Full guide →Climate change signal
All-time records →53 of 366 (14.5%) of Surprise'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 | 0 | |
| 1930s | 120 | |
| 1940s | 59 | |
| 1950s | 0 | |
| 1960s | 32 | |
| 2000s | 66 | |
| 2010s | 88 | |
| 2020s | 1 |
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 | 65.2°F | 39.2°F | 52.2°F | 1.38 in | — | 4 |
| February | 68.2°F | 41.4°F | 54.8°F | 1.45 in | — | 4 |
| March | 74.9°F | 45.6°F | 60.3°F | 1.00 in | — | 3 |
| April | 82.1°F | 50.6°F | 66.3°F | 0.25 in | — | 1 |
| May | 91.8°F | 59.9°F | 75.9°F | 0.09 in | — | 1 |
| June | 101.8°F | 69.1°F | 85.5°F | 0.07 in | — | 0 |
| July | 104.6°F | 76.8°F | 90.7°F | 0.89 in | — | 5 |
| August | 103.3°F | 76.9°F | 90.1°F | 1.13 in | — | 5 |
| September | 97.6°F | 69.8°F | 83.7°F | 1.06 in | — | 3 |
| October | 86.5°F | 57.1°F | 71.8°F | 0.66 in | — | 2 |
| November | 74.1°F | 45.8°F | 59.9°F | 0.67 in | — | 2 |
| December | 64.1°F | 39.0°F | 51.5°F | 0.95 in | — | 4 |
Climate twins of Surprise
Why these? →The most climatically similar US cities at least 140 miles away (by monthly temperature + precipitation pattern).