Surprise vs Casa Grande Climate
99%matchOn climate, Casa Grande is a 99% match for Surprise. Very close: temperatures within 3°F (2°C), with similar rain, humidity and sun.
Surprise gets 7.4 in (188 mm) of rain a year and Casa Grande 7.6 in (192 mm). July is the warmest month in both, with highs of 108°F (42°C) in Surprise and 107°F (42°C) in Casa Grande.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
SurpriseCasa Grandesolid = high, dashed = low
Rain (in per month)
SurpriseCasa Grande
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Surprise | Casa Grande | Surprise | Casa Grande | Surprise | Casa Grande | |
| Jan | 69°F(21°C) | 69°F(21°C) | 42°F(6°C) | 38°F(4°C) | 0.8 in(20 mm) | 0.7 in(18 mm) |
| Feb | 73°F(23°C) | 72°F(22°C) | 44°F(7°C) | 41°F(5°C) | 0.9 in(24 mm) | 0.7 in(19 mm) |
| Mar | 79°F(26°C) | 79°F(26°C) | 49°F(10°C) | 46°F(8°C) | 0.8 in(20 mm) | 0.7 in(17 mm) |
| Apr | 87°F(31°C) | 87°F(31°C) | 55°F(13°C) | 51°F(11°C) | 0.2 in(5 mm) | 0.3 in(7 mm) |
| May | 96°F(36°C) | 96°F(36°C) | 64°F(18°C) | 60°F(16°C) | 0.1 in(3 mm) | 0.1 in(3 mm) |
| Jun | 106°F(41°C) | 105°F(41°C) | 73°F(23°C) | 69°F(20°C) | 0.1 in(2 mm) | 0.1 in(2 mm) |
| Jul | 108°F(42°C) | 107°F(42°C) | 79°F(26°C) | 77°F(25°C) | 0.8 in(20 mm) | 1.1 in(28 mm) |
| Aug | 107°F(41°C) | 106°F(41°C) | 79°F(26°C) | 76°F(25°C) | 0.9 in(24 mm) | 1.1 in(28 mm) |
| Sep | 102°F(39°C) | 101°F(38°C) | 72°F(22°C) | 70°F(21°C) | 0.7 in(17 mm) | 0.6 in(16 mm) |
| Oct | 91°F(33°C) | 91°F(33°C) | 60°F(15°C) | 57°F(14°C) | 0.6 in(14 mm) | 0.7 in(17 mm) |
| Nov | 78°F(26°C) | 79°F(26°C) | 48°F(9°C) | 45°F(7°C) | 0.6 in(15 mm) | 0.6 in(14 mm) |
| Dec | 68°F(20°C) | 68°F(20°C) | 40°F(5°C) | 38°F(3°C) | 0.9 in(24 mm) | 0.9 in(23 mm) |
1991–2020 averages, by calendar month.