Chaohu vs O'Fallon, Illinois Climate
66%matchChaohu vs O'Fallon: a 66% climate match. Compared with Chaohu, O'Fallon has the same summer highs, 9°F (5°C) colder winter nights and half the summer rain.
Chaohu gets 44 in (1106 mm) of rain a year and O'Fallon 40 in (1027 mm). July is the warmest month in both, with highs of 91°F (33°C) in Chaohu and 88°F (31°C) in O'Fallon.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
ChaohuO'Fallonsolid = high, dashed = low
Rain (in per month)
ChaohuO'Fallon
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Chaohu | O'Fallon | Chaohu | O'Fallon | Chaohu | O'Fallon | |
| Jan | 45°F(7°C) | 39°F(4°C) | 32°F(0°C) | 23°F(-5°C) | 1.6 in(41 mm) | 2.4 in(60 mm) |
| Feb | 51°F(10°C) | 45°F(7°C) | 36°F(2°C) | 26°F(-3°C) | 2.0 in(52 mm) | 2.4 in(61 mm) |
| Mar | 60°F(15°C) | 56°F(13°C) | 44°F(7°C) | 35°F(2°C) | 3.0 in(76 mm) | 3.3 in(84 mm) |
| Apr | 71°F(22°C) | 67°F(20°C) | 54°F(12°C) | 45°F(7°C) | 4.0 in(101 mm) | 4.0 in(101 mm) |
| May | 80°F(27°C) | 77°F(25°C) | 63°F(17°C) | 56°F(13°C) | 4.1 in(104 mm) | 4.9 in(124 mm) |
| Jun | 85°F(30°C) | 85°F(30°C) | 71°F(22°C) | 65°F(18°C) | 6.7 in(170 mm) | 4.2 in(106 mm) |
| Jul | 91°F(33°C) | 88°F(31°C) | 77°F(25°C) | 68°F(20°C) | 6.9 in(175 mm) | 3.8 in(96 mm) |
| Aug | 89°F(32°C) | 87°F(31°C) | 76°F(25°C) | 66°F(19°C) | 6.0 in(152 mm) | 3.3 in(83 mm) |
| Sep | 83°F(28°C) | 81°F(27°C) | 68°F(20°C) | 58°F(14°C) | 3.3 in(84 mm) | 3.7 in(94 mm) |
| Oct | 73°F(23°C) | 69°F(21°C) | 57°F(14°C) | 46°F(8°C) | 2.3 in(58 mm) | 2.8 in(72 mm) |
| Nov | 62°F(16°C) | 55°F(13°C) | 45°F(7°C) | 36°F(2°C) | 2.3 in(59 mm) | 3.0 in(77 mm) |
| Dec | 50°F(10°C) | 44°F(7°C) | 35°F(1°C) | 27°F(-3°C) | 1.3 in(34 mm) | 2.7 in(69 mm) |
1991–2020 averages, by calendar month.