Eau Claire climate — normals and trends
Eau Claire (United States) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.1 °C and it receives 857 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 (21.9 °C on average) and the coldest is January (-9.7 °C). Rainfall peaks in June.
Eau Claire averages 149 frost days, 15 hot days (≥ 30 °C) and 112 rainy days per year.
Eau Claire has warmed by +2.0 °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 158 to 140 per year over the period.
The hottest day of the period reached 38.1 °C (on 16 August 1988) and the coldest -39.5 °C (on 30 January 1951).
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
Eau ClaireWisconsin
- coords
- 44.81°, -91.50°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.1°C
Average daily high
12.0°C
Average daily low
2.3°C
Annual rainfall
857mm
Sunshine / day
8.6h
Mean relative humidity
70%
Average peak wind
17.7km/h
Seasonal range
31.6°C
Frost days (< 0 °C)
149 d/yr
Hot days (≥ 30 °C)
15 d/yr
Rainy days (≥ 1 mm)
112 d/yr
Annual snowfall
96.3 cm
Average feels-like high
9.5 °C
Average feels-like low
-0.9 °C
Average peak gust
37.3 km/h
Tropical nights (≥ 20 °C)
12 d/yr
Solar radiation
14.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.0 °C
since 1940
+0.2 °C per decade · r² = 0.33 · 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
38.1 °C
16 August 1988
Coldest day
-39.5 °C
30 January 1951
Wettest day
84 mm
23 September 2010
Windiest day
58.0 km/h
10 October 1949
Strongest gust
115.9 km/h
10 October 1949
Hottest feels-like
42.1 °C
30 July 1999
Coldest feels-like
-44.7 °C
30 January 1951
Snowiest day
22.6 cm
2 May 2013
Sunniest day
15.2 h
20 June 2003
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 | -4.5 °C | +0.8 °C | 8 mm | -22 mm |
| Feb | -3.4 °C | -1.1 °C | 19 mm | -9 mm |
| Mar | 9.2 °C | +4.8 °C | 115 mm | +56 mm |
| Apr | 13.5 °C | +0.7 °C | 113 mm | +27 mm |
| May | 20.3 °C | +0.7 °C | 69 mm | -34 mm |
| Jun | 24.8 °C | +0.2 °C | 209 mm | +95 mm |
| Jul | 27.8 °C | +0.8 °C | 86 mm | -4 mm |
| Aug | 25.1 °C | -0.6 °C | 75 mm | -27 mm |
| Sep | 23.4 °C | +2.3 °C | 74 mm | -17 mm |
| Oct | 16.4 °C | +2.1 °C | 35 mm | -32 mm |
| Nov | 6.9 °C | +2.2 °C | 38 mm | -16 mm |
| Dec | -3.6 °C | -0.9 °C | 49 mm | +12 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 Eau Claire?
Eau Claire has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.1 °C and it receives 857 mm of precipitation per year.
What is the hottest day ever recorded in Eau Claire?
The hottest day measured in Eau Claire between 1940 and 2025 was 16 August 1988, reaching 38.1 °C.
What is the coldest day in Eau Claire?
The coldest day measured in Eau Claire between 1940 and 2025 was 30 January 1951, at -39.5 °C.
Does it snow in Eau Claire?
Yes. Eau Claire gets on average 96.3 cm of snow per year and has around 149 frost days.
Has the climate of Eau Claire warmed?
Yes: Eau Claire warmed by +2.0 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Eau Claire?
The wettest day measured in Eau Claire between 1940 and 2025 was 23 September 2010, with 84 mm of rain in 24 hours.
What was the windiest day in Eau Claire?
The windiest day measured in Eau Claire between 1940 and 2025 was 10 October 1949, with winds reaching 58.0 km/h.
What is the warmest month in Eau Claire?
The warmest month in Eau Claire is July (21.9 °C on average); the coldest is January (-9.7 °C).
How much does it rain in Eau Claire?
Eau Claire receives on average 857 mm of precipitation per year, spread over about 112 rainy days.
Is it sunny in Eau Claire?
Eau Claire gets on average 8.6 hours of sunshine per day, roughly 3,139 hours per year over 1940-2025.
What is the biggest single-day snowfall in Eau Claire?
The heaviest 24-hour snowfall measured in Eau Claire between 1940 and 2025 was 2 May 2013, with 22.6 cm.
Are there tropical nights in Eau Claire?
Yes: Eau Claire has on average 12 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Eau Claire?
In Eau Claire, between 1940 and 2025, the highest apparent temperature reached 42.1 °C on 30 July 1999, and the lowest was -44.7 °C on 30 January 1951.
Compare Eau Claire with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Eau Claire