Danville, Illinois Climate by Month
Danville, Illinois, United States
Warm summers and freezing winters, with rain spread through the year.
The climate in Danville is one of warm summers and freezing winters, with rain spread through the year. Afternoon highs range from 35°F (2°C) in January to 86°F (30°C) in July, and January nights average 19°F (-7°C). It gets 42 in (1056 mm) of rain a year, spread across the months.
- Warmest month
- 86°F(30°C)
- Average high, July
- Coldest nights
- 19°F(-7°C)
- Average low, January
- Rain per year
- 42 in(1056 mm)
- No clear rainy season
- Humidity
- 76%
- Sunniest: July
Best and worst months in Danville
Best for weatherThe most comfortable weather comes in May and September, with highs around 77°F (25°C) and about 3.8 in (97 mm) of rain a month.
Least pleasantJanuary is the least pleasant month: it's the coldest, with highs of only 35°F (2°C).
Comfort combines how close the afternoon high is to 75°F (24°C) with how much rain falls and how humid it is. See where the weather is best in May.
Temperature and rain through the year
Highs and lows (°F)
Average highAverage low
Rain (in per month)
Danville weather by month
| Month | High | Low | Rain | Humidity | Sun |
|---|---|---|---|---|---|
| JanJanuary | 35°F(2°C) | 19°F(-7°C) | 2.2 in(57 mm) | 99% | 1.5 |
| FebFebruary | 40°F(4°C) | 22°F(-6°C) | 2.1 in(53 mm) | 86% | 2.6 |
| MarMarch | 51°F(11°C) | 32°F(0°C) | 3.0 in(76 mm) | 79% | 3.6 |
| AprApril | 64°F(18°C) | 42°F(5°C) | 4.3 in(110 mm) | 66% | 4.5 |
| MayMayBest | 75°F(24°C) | 52°F(11°C) | 4.6 in(118 mm) | 70% | 5.2 |
| JunJune | 83°F(28°C) | 61°F(16°C) | 5.1 in(129 mm) | 71% | 5.9 |
| JulJuly | 86°F(30°C) | 65°F(18°C) | 4.3 in(110 mm) | 74% | 6.1 |
| AugAugust | 85°F(29°C) | 63°F(17°C) | 3.6 in(92 mm) | 74% | 5.3 |
| SepSeptemberBest | 79°F(26°C) | 55°F(13°C) | 3.0 in(76 mm) | 71% | 4.5 |
| OctOctober | 67°F(19°C) | 44°F(7°C) | 3.4 in(86 mm) | 67% | 3.0 |
| NovNovember | 52°F(11°C) | 33°F(1°C) | 3.2 in(82 mm) | 75% | 1.9 |
| DecDecember | 40°F(5°C) | 24°F(-4°C) | 2.6 in(67 mm) | 81% | 1.4 |
1991–2020 averages. Sun is solar radiation in kWh/m² per day. Highlighted: the most comfortable months.
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