Casa Grande vs San Luis, Arizona Climate
78%matchOn climate, San Luis is a 78% match for Casa Grande. Compared with Casa Grande, San Luis has the same summer highs, a third of the summer rain and 5°F (3°C) milder winter nights.
Casa Grande gets 7.6 in (192 mm) of rain a year and San Luis 2.9 in (73 mm). July is the warmest month in both, with highs of 107°F (42°C) in Casa Grande and 107°F (42°C) in San Luis.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
Casa GrandeSan Luissolid = high, dashed = low
Rain (in per month)
Casa GrandeSan Luis
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Casa Grande | San Luis | Casa Grande | San Luis | Casa Grande | San Luis | |
| Jan | 69°F(21°C) | 71°F(21°C) | 38°F(4°C) | 44°F(7°C) | 0.7 in(18 mm) | 0.4 in(9 mm) |
| Feb | 72°F(22°C) | 75°F(24°C) | 41°F(5°C) | 46°F(8°C) | 0.7 in(19 mm) | 0.4 in(9 mm) |
| Mar | 79°F(26°C) | 82°F(28°C) | 46°F(8°C) | 50°F(10°C) | 0.7 in(17 mm) | 0.3 in(8 mm) |
| Apr | 87°F(31°C) | 89°F(31°C) | 51°F(11°C) | 55°F(13°C) | 0.3 in(7 mm) | 0.1 in(2 mm) |
| May | 96°F(36°C) | 97°F(36°C) | 60°F(16°C) | 63°F(17°C) | 0.1 in(3 mm) | 0.0 in(1 mm) |
| Jun | 105°F(41°C) | 105°F(41°C) | 69°F(20°C) | 71°F(21°C) | 0.1 in(2 mm) | 0.0 in(1 mm) |
| Jul | 107°F(42°C) | 107°F(42°C) | 77°F(25°C) | 77°F(25°C) | 1.1 in(28 mm) | 0.2 in(4 mm) |
| Aug | 106°F(41°C) | 106°F(41°C) | 76°F(25°C) | 78°F(26°C) | 1.1 in(28 mm) | 0.4 in(10 mm) |
| Sep | 101°F(38°C) | 102°F(39°C) | 70°F(21°C) | 73°F(23°C) | 0.6 in(16 mm) | 0.4 in(9 mm) |
| Oct | 91°F(33°C) | 92°F(33°C) | 57°F(14°C) | 61°F(16°C) | 0.7 in(17 mm) | 0.3 in(7 mm) |
| Nov | 79°F(26°C) | 80°F(27°C) | 45°F(7°C) | 50°F(10°C) | 0.6 in(14 mm) | 0.2 in(4 mm) |
| Dec | 68°F(20°C) | 70°F(21°C) | 38°F(3°C) | 43°F(6°C) | 0.9 in(23 mm) | 0.4 in(9 mm) |
1991–2020 averages, by calendar month.