Climate almanac
Surprise
Arizona, United States · 33.63°, -112.33°
What is the climate like in Surprise?
The best time to visit Surprise is typically September – June, with trip comfort peaking in April (8.9/10). Surprise is warmest in July, when daily highs average 105°F (41°C), and coolest in January, when lows fall to about 44°F (6°C). The wettest month is typically January and the driest is May; the year sees roughly 9.7 in (248 mm) of precipitation.
- Best time to visitSeptember – June — comfort peaks in April (8.9/10)
- Warmest monthJuly — average high 105°F (41°C)
- Coolest monthJanuary — average low 44°F (6°C)
- Wettest monthJanuary (1.3 in (33 mm))
- Driest monthMay (0.1 in (3 mm))
- Annual precipitation9.7 in (248 mm)
- Based on2016-2025 daily ERA5 reanalysis data (10-year normals)
- Records fromLitchfield Park, 15 km away (1917-2021)