Danville weather by month
What a typical year looks like in Danville, Illinois: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at DANVILLE, 3 km from Danville; records cover 1895–2026.
The year at a glance
- Precipitation a year
- 43.2 in1098 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 19
- First fall freeze
- Oct 16
- Heating degree days
- 5,365
- Cooling degree days
- 1,065
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −2°−19° (heating, 99%) and 93°34° (cooling, 1%).
Month by month
Danville in January
Highs average 35°2° and lows 20°−7°, with 2.5 in63 mm of precipitation in a typical January.
- Record high
- 70°21° (1950)
- Record low
- −26°−32° (1982)
- Heating degree days
- 1165
- Cooling degree days
- 0
Danville in February
Highs average 40°5° and lows 23°−5°, with 2.2 in57 mm of precipitation in a typical February.
- Record high
- 74°23° (2000)
- Record low
- −22°−30° (1934)
- Heating degree days
- 934
- Cooling degree days
- 0
Danville in March
Highs average 52°11° and lows 32°0°, with 3.2 in82 mm of precipitation in a typical March.
- Record high
- 86°30° (2026)
- Record low
- −13°−25° (1943)
- Heating degree days
- 714
- Cooling degree days
- 2
Danville in April
Highs average 65°18° and lows 42°6°, with 4.5 in113 mm of precipitation in a typical April.
- Record high
- 94°34° (1896)
- Record low
- 12°−11° (1982)
- Heating degree days
- 352
- Cooling degree days
- 14
Danville in May
Highs average 75°24° and lows 52°11°, with 4.6 in118 mm of precipitation in a typical May.
- Record high
- 103°39° (1925)
- Record low
- 25°−4° (1966)
- Heating degree days
- 126
- Cooling degree days
- 88
Danville in June
Highs average 83°28° and lows 61°16°, with 5.2 in132 mm of precipitation in a typical June.
- Record high
- 105°41° (1954)
- Record low
- 36°2° (1917)
- Heating degree days
- 14
- Cooling degree days
- 230
Danville in July
Highs average 85°30° and lows 65°18°, with 4.3 in110 mm of precipitation in a typical July.
- Record high
- 112°44° (1936)
- Record low
- 41°5° (1947)
- Heating degree days
- 1
- Cooling degree days
- 314
Danville in August
Highs average 84°29° and lows 63°17°, with 3.3 in84 mm of precipitation in a typical August.
- Record high
- 107°42° (1918)
- Record low
- 37°3° (1946)
- Heating degree days
- 3
- Cooling degree days
- 265
Danville in September
Highs average 79°26° and lows 56°13°, with 3.3 in83 mm of precipitation in a typical September.
- Record high
- 102°39° (1899)
- Record low
- 22°−6° (1899)
- Heating degree days
- 62
- Cooling degree days
- 130
Danville in OctoberThis month
Highs average 67°19° and lows 44°7°, with 3.7 in93 mm of precipitation in a typical October.
- Record high
- 93°34° (1954)
- Record low
- 13°−11° (1895)
- Heating degree days
- 319
- Cooling degree days
- 21
Danville in November
Highs average 52°11° and lows 34°1°, with 3.7 in94 mm of precipitation in a typical November.
- Record high
- 82°28° (1915)
- Record low
- −6°−21° (1930)
- Heating degree days
- 665
- Cooling degree days
- 1
Danville in December
Highs average 40°4° and lows 25°−4°, with 2.7 in69 mm of precipitation in a typical December.
- Record high
- 72°22° (1982)
- Record low
- −25°−32° (1989)
- Heating degree days
- 1010
- Cooling degree days
- 0