Mankato climate — normals and trends
Mankato (United States) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 7.4 °C and it receives 845 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 (22.7 °C on average) and the coldest is January (-10.3 °C). Rainfall peaks in June.
Mankato averages 148 frost days, 21 hot days (≥ 30 °C) and 103 rainy days per year.
Mankato has warmed by +2.1 °C between 1940 and 2025, or +0.25 °C per decade. This trend is statistically significant.
The number of frost days there went from about 155 to 141 per year over the period.
The hottest day of the period reached 41.0 °C (on 31 July 1988) and the coldest -36.9 °C (on 15 January 1963).
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
MankatoMinnesota
- coords
- 44.16°, -94.01°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
7.4°C
Average daily high
12.3°C
Average daily low
2.7°C
Annual rainfall
845mm
Sunshine / day
8.9h
Mean relative humidity
72%
Average peak wind
22.4km/h
Seasonal range
33.0°C
Frost days (< 0 °C)
148 d/yr
Hot days (≥ 30 °C)
21 d/yr
Rainy days (≥ 1 mm)
103 d/yr
Annual snowfall
87.6 cm
Average feels-like high
9.6 °C
Average feels-like low
-0.8 °C
Average peak gust
40.2 km/h
Tropical nights (≥ 20 °C)
18 d/yr
Solar radiation
14.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.1 °C
since 1940
+0.3 °C per decade · r² = 0.30 · 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
41.0 °C
31 July 1988
Coldest day
-36.9 °C
15 January 1963
Wettest day
89 mm
10 August 1994
Windiest day
72.2 km/h
10 October 1949
Strongest gust
137.9 km/h
10 October 1949
Hottest feels-like
44.2 °C
6 July 1948
Coldest feels-like
-43.9 °C
2 February 1996
Snowiest day
26.3 cm
22 January 2018
Sunniest day
15.0 h
19 June 1940
Normals computed over complete calendar years 1940–2025.
A specific year
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Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | -3.5 °C | +2.5 °C | 2 mm | -24 mm |
| Feb | -2.7 °C | +0.7 °C | 12 mm | -14 mm |
| Mar | 10.4 °C | +6.7 °C | 97 mm | +39 mm |
| Apr | 14.7 °C | +1.4 °C | 100 mm | +15 mm |
| May | 21.0 °C | +0.6 °C | 104 mm | -7 mm |
| Jun | 25.7 °C | +0.3 °C | 197 mm | +78 mm |
| Jul | 27.8 °C | +0.2 °C | 125 mm | +30 mm |
| Aug | 25.7 °C | -0.7 °C | 123 mm | +18 mm |
| Sep | 24.3 °C | +2.2 °C | 68 mm | -14 mm |
| Oct | 17.5 °C | +2.1 °C | 57 mm | -2 mm |
| Nov | 7.9 °C | +2.5 °C | 40 mm | -6 mm |
| Dec | -2.0 °C | +0.8 °C | 33 mm | 0 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 Mankato?
Mankato has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 7.4 °C and it receives 845 mm of precipitation per year.
What is the hottest day ever recorded in Mankato?
The hottest day measured in Mankato between 1940 and 2025 was 31 July 1988, reaching 41.0 °C.
What is the coldest day in Mankato?
The coldest day measured in Mankato between 1940 and 2025 was 15 January 1963, at -36.9 °C.
Does it snow in Mankato?
Yes. Mankato gets on average 87.6 cm of snow per year and has around 148 frost days.
Has the climate of Mankato warmed?
Yes: Mankato warmed by +2.1 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Mankato?
The wettest day measured in Mankato between 1940 and 2025 was 10 August 1994, with 89 mm of rain in 24 hours.
What was the windiest day in Mankato?
The windiest day measured in Mankato between 1940 and 2025 was 10 October 1949, with winds reaching 72.2 km/h.
What is the warmest month in Mankato?
The warmest month in Mankato is July (22.7 °C on average); the coldest is January (-10.3 °C).
How much does it rain in Mankato?
Mankato receives on average 845 mm of precipitation per year, spread over about 103 rainy days.
Is it sunny in Mankato?
Mankato 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 Mankato?
The heaviest 24-hour snowfall measured in Mankato between 1940 and 2025 was 22 January 2018, with 26.3 cm.
Are there tropical nights in Mankato?
Yes: Mankato has on average 18 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Mankato?
In Mankato, between 1940 and 2025, the highest apparent temperature reached 44.2 °C on 6 July 1948, and the lowest was -43.9 °C on 2 February 1996.
Compare Mankato with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Mankato