Appleton climate — normals and trends
Appleton (United States) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 7.5 °C and it receives 791 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 (-8.4 °C). Rainfall peaks in June.
Appleton averages 141 frost days, 13 hot days (≥ 30 °C) and 109 rainy days per year.
Appleton has warmed by +2.2 °C between 1940 and 2025, or +0.26 °C per decade. This trend is statistically significant.
The number of frost days there went from about 152 to 130 per year over the period.
The hottest day of the period reached 38.7 °C (on 14 July 1995) and the coldest -34.3 °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
AppletonWisconsin
- coords
- 44.26°, -88.42°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.5°C
Average daily high
11.9°C
Average daily low
3.2°C
Annual rainfall
791mm
Sunshine / day
8.7h
Mean relative humidity
72%
Average peak wind
20.9km/h
Seasonal range
30.3°C
Frost days (< 0 °C)
141 d/yr
Hot days (≥ 30 °C)
13 d/yr
Rainy days (≥ 1 mm)
109 d/yr
Annual snowfall
94.4 cm
Average feels-like high
9.3 °C
Average feels-like low
-0.3 °C
Average peak gust
38.9 km/h
Tropical nights (≥ 20 °C)
15 d/yr
Solar radiation
14.2 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.2 °C
since 1940
+0.3 °C per decade · r² = 0.37 · 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
38.7 °C
14 July 1995
Coldest day
-34.3 °C
30 January 1951
Wettest day
84 mm
22 June 2024
Windiest day
60.1 km/h
11 November 1940
Strongest gust
110.9 km/h
16 December 2021
Hottest feels-like
42.1 °C
13 July 1995
Coldest feels-like
-39.4 °C
30 January 1951
Snowiest day
25.8 cm
1 December 1985
Sunniest day
15.2 h
22 June 2023
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 | -3.1 °C | +1.7 °C | 4 mm | -33 mm |
| Feb | -2.3 °C | +0.4 °C | 28 mm | -5 mm |
| Mar | 7.9 °C | +4.3 °C | 98 mm | +37 mm |
| Apr | 12.2 °C | +0.4 °C | 96 mm | +17 mm |
| May | 18.1 °C | -0.7 °C | 55 mm | -28 mm |
| Jun | 25.0 °C | +0.8 °C | 74 mm | -14 mm |
| Jul | 27.3 °C | +0.6 °C | 128 mm | +45 mm |
| Aug | 24.9 °C | -0.6 °C | 101 mm | +16 mm |
| Sep | 22.9 °C | +1.9 °C | 35 mm | -40 mm |
| Oct | 17.1 °C | +2.8 °C | 35 mm | -29 mm |
| Nov | 6.9 °C | +1.2 °C | 34 mm | -24 mm |
| Dec | -3.1 °C | -1.3 °C | 52 mm | +8 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 Appleton?
Appleton has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 7.5 °C and it receives 791 mm of precipitation per year.
What is the hottest day ever recorded in Appleton?
The hottest day measured in Appleton between 1940 and 2025 was 14 July 1995, reaching 38.7 °C.
What is the coldest day in Appleton?
The coldest day measured in Appleton between 1940 and 2025 was 30 January 1951, at -34.3 °C.
Does it snow in Appleton?
Yes. Appleton gets on average 94.4 cm of snow per year and has around 141 frost days.
Has the climate of Appleton warmed?
Yes: Appleton warmed by +2.2 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Appleton?
The wettest day measured in Appleton between 1940 and 2025 was 22 June 2024, with 84 mm of rain in 24 hours.
What was the windiest day in Appleton?
The windiest day measured in Appleton between 1940 and 2025 was 11 November 1940, with winds reaching 60.1 km/h.
What is the warmest month in Appleton?
The warmest month in Appleton is July (21.9 °C on average); the coldest is January (-8.4 °C).
How much does it rain in Appleton?
Appleton receives on average 791 mm of precipitation per year, spread over about 109 rainy days.
Is it sunny in Appleton?
Appleton gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Appleton?
The heaviest 24-hour snowfall measured in Appleton between 1940 and 2025 was 1 December 1985, with 25.8 cm.
Are there tropical nights in Appleton?
Yes: Appleton has on average 15 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Appleton?
In Appleton, between 1940 and 2025, the highest apparent temperature reached 42.1 °C on 13 July 1995, and the lowest was -39.4 °C on 30 January 1951.
Compare Appleton with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Appleton