Danville, Illinois vs Upper Alton Climate
83%matchDanville and Upper Alton are a 83% climate match. Compared with Danville, Upper Alton has less humid air.
Danville gets 42 in (1056 mm) of rain a year and Upper Alton 40 in (1019 mm). July is the warmest month in both, with highs of 86°F (30°C) in Danville and 88°F (31°C) in Upper Alton.
Climate fingerprints: ring color = average temperature, thickness = rain. January at the top.
Month by month
Highs and lows (°F)
DanvilleUpper Altonsolid = high, dashed = low
Rain (in per month)
DanvilleUpper Alton
Monthly averages
| Month | High | Low | Rain | |||
|---|---|---|---|---|---|---|
| Danville | Upper Alton | Danville | Upper Alton | Danville | Upper Alton | |
| Jan | 35°F(2°C) | 39°F(4°C) | 19°F(-7°C) | 21°F(-6°C) | 2.2 in(57 mm) | 2.1 in(54 mm) |
| Feb | 40°F(4°C) | 44°F(7°C) | 22°F(-6°C) | 25°F(-4°C) | 2.1 in(53 mm) | 2.1 in(54 mm) |
| Mar | 51°F(11°C) | 55°F(13°C) | 32°F(0°C) | 35°F(1°C) | 3.0 in(76 mm) | 3.2 in(82 mm) |
| Apr | 64°F(18°C) | 67°F(20°C) | 42°F(5°C) | 45°F(7°C) | 4.3 in(110 mm) | 3.9 in(99 mm) |
| May | 75°F(24°C) | 76°F(25°C) | 52°F(11°C) | 55°F(13°C) | 4.6 in(118 mm) | 4.8 in(121 mm) |
| Jun | 83°F(28°C) | 84°F(29°C) | 61°F(16°C) | 64°F(18°C) | 5.1 in(129 mm) | 4.0 in(102 mm) |
| Jul | 86°F(30°C) | 88°F(31°C) | 65°F(18°C) | 68°F(20°C) | 4.3 in(110 mm) | 4.0 in(102 mm) |
| Aug | 85°F(29°C) | 87°F(30°C) | 63°F(17°C) | 66°F(19°C) | 3.6 in(92 mm) | 3.4 in(86 mm) |
| Sep | 79°F(26°C) | 81°F(27°C) | 55°F(13°C) | 58°F(14°C) | 3.0 in(76 mm) | 3.6 in(92 mm) |
| Oct | 67°F(19°C) | 69°F(20°C) | 44°F(7°C) | 46°F(8°C) | 3.4 in(86 mm) | 3.0 in(75 mm) |
| Nov | 52°F(11°C) | 55°F(13°C) | 33°F(1°C) | 35°F(2°C) | 3.2 in(82 mm) | 3.3 in(83 mm) |
| Dec | 40°F(5°C) | 43°F(6°C) | 24°F(-4°C) | 26°F(-3°C) | 2.6 in(67 mm) | 2.7 in(69 mm) |
1991–2020 averages, by calendar month.