San Tan Valley vs Casa Grande Climate
99%matchSan Tan Valley and Casa Grande are a 99% climate match. Very close: temperatures within 2°F (1°C), with similar rain, humidity and sun.
San Tan Valley gets 9.0 in (228 mm) of rain a year and Casa Grande 7.6 in (192 mm). July is the warmest month in both, with highs of 106°F (41°C) in San Tan Valley 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)
San Tan ValleyCasa Grandesolid = high, dashed = low
Rain (in per month)
San Tan ValleyCasa Grande
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| San Tan Valley | Casa Grande | San Tan Valley | Casa Grande | San Tan Valley | Casa Grande | |
| Jan | 67°F(19°C) | 69°F(21°C) | 39°F(4°C) | 38°F(4°C) | 0.9 in(23 mm) | 0.7 in(18 mm) |
| Feb | 70°F(21°C) | 72°F(22°C) | 42°F(6°C) | 41°F(5°C) | 1.0 in(25 mm) | 0.7 in(19 mm) |
| Mar | 77°F(25°C) | 79°F(26°C) | 46°F(8°C) | 46°F(8°C) | 0.9 in(24 mm) | 0.7 in(17 mm) |
| Apr | 85°F(30°C) | 87°F(31°C) | 51°F(11°C) | 51°F(11°C) | 0.3 in(8 mm) | 0.3 in(7 mm) |
| May | 94°F(34°C) | 96°F(36°C) | 60°F(15°C) | 60°F(16°C) | 0.2 in(4 mm) | 0.1 in(3 mm) |
| Jun | 102°F(39°C) | 105°F(41°C) | 68°F(20°C) | 69°F(20°C) | 0.1 in(2 mm) | 0.1 in(2 mm) |
| Jul | 106°F(41°C) | 107°F(42°C) | 76°F(25°C) | 77°F(25°C) | 1.2 in(30 mm) | 1.1 in(28 mm) |
| Aug | 104°F(40°C) | 106°F(41°C) | 76°F(25°C) | 76°F(25°C) | 1.1 in(28 mm) | 1.1 in(28 mm) |
| Sep | 100°F(38°C) | 101°F(38°C) | 71°F(22°C) | 70°F(21°C) | 0.7 in(18 mm) | 0.6 in(16 mm) |
| Oct | 91°F(33°C) | 91°F(33°C) | 58°F(15°C) | 57°F(14°C) | 0.7 in(19 mm) | 0.7 in(17 mm) |
| Nov | 78°F(25°C) | 79°F(26°C) | 46°F(8°C) | 45°F(7°C) | 0.7 in(17 mm) | 0.6 in(14 mm) |
| Dec | 67°F(20°C) | 68°F(20°C) | 39°F(4°C) | 38°F(3°C) | 1.2 in(30 mm) | 0.9 in(23 mm) |
1991–2020 averages, by calendar month.