Danville climate — normals and trends
Danville (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.4 °C and it receives 1,004 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is July (24.0 °C on average) and the coldest is January (-3.0 °C). Rainfall peaks in May.
Danville averages 105 frost days, 35 hot days (≥ 30 °C) and 116 rainy days per year.
Danville has warmed by +1.9 °C between 1940 and 2025, or +0.23 °C per decade. This trend is statistically significant.
The number of frost days there went from about 118 to 92 per year over the period.
The hottest day of the period reached 39.3 °C (on 25 June 1988) and the coldest -31.3 °C (on 19 January 1994).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Climate normals · ERA5
DanvilleIllinois
- coords
- 40.12°, -87.63°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.4°C
Average daily high
16.4°C
Average daily low
6.6°C
Annual rainfall
1,004mm
Sunshine / day
8.9h
Mean relative humidity
70%
Average peak wind
19.9km/h
Seasonal range
27.0°C
Frost days (< 0 °C)
105 d/yr
Hot days (≥ 30 °C)
35 d/yr
Rainy days (≥ 1 mm)
116 d/yr
Annual snowfall
49.9 cm
Average feels-like high
14.6 °C
Average feels-like low
3.9 °C
Average peak gust
38.4 km/h
Tropical nights (≥ 20 °C)
37 d/yr
Solar radiation
15.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+1.9 °C
since 1940
+0.2 °C per decade · r² = 0.36 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
Hottest day
39.3 °C
25 June 1988
Coldest day
-31.3 °C
19 January 1994
Wettest day
116 mm
12 August 1993
Windiest day
57.6 km/h
19 March 1948
Strongest gust
108.0 km/h
10 November 1998
Hottest feels-like
44.8 °C
16 August 1988
Coldest feels-like
-38.0 °C
20 January 1985
Snowiest day
27.9 cm
2 January 1999
Sunniest day
14.3 h
15 June 2020
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -0.6 °C | -1.7 °C | 35 mm | -30 mm |
| Feb | 4.0 °C | +0.3 °C | 28 mm | -35 mm |
| Mar | 15.2 °C | +5.2 °C | 75 mm | -19 mm |
| Apr | 18.4 °C | +1.4 °C | 121 mm | +12 mm |
| May | 22.3 °C | -0.2 °C | 79 mm | -30 mm |
| Jun | 28.9 °C | +1.6 °C | 112 mm | +13 mm |
| Jul | 30.7 °C | +1.9 °C | 110 mm | +19 mm |
| Aug | 29.0 °C | +0.8 °C | 23 mm | -52 mm |
| Sep | 28.7 °C | +3.5 °C | 32 mm | -41 mm |
| Oct | 21.4 °C | +2.7 °C | 56 mm | -20 mm |
| Nov | 11.7 °C | +1.3 °C | 50 mm | -33 mm |
| Dec | 3.7 °C | 0.0 °C | 44 mm | -27 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Danville?
Danville has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.4 °C and it receives 1,004 mm of precipitation per year.
What is the hottest day ever recorded in Danville?
The hottest day measured in Danville between 1940 and 2025 was 25 June 1988, reaching 39.3 °C.
What is the coldest day in Danville?
The coldest day measured in Danville between 1940 and 2025 was 19 January 1994, at -31.3 °C.
Does it snow in Danville?
Yes. Danville gets on average 49.9 cm of snow per year and has around 105 frost days.
Has the climate of Danville warmed?
Yes: Danville warmed by +1.9 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Danville?
The wettest day measured in Danville between 1940 and 2025 was 12 August 1993, with 116 mm of rain in 24 hours.
What was the windiest day in Danville?
The windiest day measured in Danville between 1940 and 2025 was 19 March 1948, with winds reaching 57.6 km/h.
What is the warmest month in Danville?
The warmest month in Danville is July (24.0 °C on average); the coldest is January (-3.0 °C).
How much does it rain in Danville?
Danville receives on average 1,004 mm of precipitation per year, spread over about 116 rainy days.
Is it sunny in Danville?
Danville gets on average 8.9 hours of sunshine per day, roughly 3,249 hours per year over 1940-2025.
What is the biggest single-day snowfall in Danville?
The heaviest 24-hour snowfall measured in Danville between 1940 and 2025 was 2 January 1999, with 27.9 cm.
Are there tropical nights in Danville?
Yes: Danville has on average 37 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Danville?
In Danville, between 1940 and 2025, the highest apparent temperature reached 44.8 °C on 16 August 1988, and the lowest was -38.0 °C on 20 January 1985.
Compare Danville with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Danville