The hottest, coldest, wettest and snowiest days Mankato has
recorded — the outer limits of what its weather can do, and how far
they sit beyond a normal day.
Based on 19 years of daily weather observations (2006–present), from the Mankato Municipal Airport station 10 km away. Updated through August 2025 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Mankato
has recorded — each shown against what a normal day that time of year
looks like.
🔥Hottest day
102°FJun 7, 2011
The three most extreme on record
1102°FJun 7, 2011
2100°FMay 28, 2018
399°FJun 5, 2021
❄️Coldest night
-29°FJan 31, 2019
The three most extreme on record
1-29°FJan 31, 2019
2-28°FJan 30, 2019
3-27°FJan 2, 2010
🌧️Most rain in one day
5.47 inJul 26, 2020
The three most extreme on record
15.47 inJul 26, 2020
23.60 inJun 14, 2016
32.86 inAug 11, 2016
In plain terms
Across the record, Mankato has reached as high as 102°F and as low as −29°F. A single day has delivered over 5 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Faribault (NOAA GHCN station USC00212721), about 62 km from the city centre.