North Mankato has cold, snowy winters and pleasant summers
A typical July afternoon reaches 83°, a January night drops to 6°, and about 39 inches of snow falls in a normal winter.
A year in North Mankato at a glance
Each month’s typical high and low, and what it brings.
What stands out about North Mankato’s climate
Read from where North Mankato sits among Minnesota’s towns. The page puts what stands out first.
About 161 frost-free days a year
In half of years the last 32° night comes by April 30 and the first by October 9.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
39 inches of snow, 32 of rain and melt
June is the wettest month and January the driest. Rain or snow falls on about 99 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Warmer than it used to be
The last 30 years in North Mankato averaged 0.8° warmer than the 1900s. The biggest change is in December (+2.5°).
A smaller shift than in 84% of U.S. towns.
Change by month
Living with North Mankato’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
161 frost-free days. The last frost comes by Apr 30 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Oct 9.
About 39" a winter over 13 days with an inch or more, most in December. Snow covers the ground about 82 days a year.
Months averaging under 55° run from October through April. Heating is 92% of the year’s heating-and-cooling load.
About 10 days a year reach 90°, and July afternoons average 83°.
The nicest months are May, June, July, August and September. 3.4 miles of trails are waiting.
Parks & trails →Normals are averages. Ice storms, nor’easters, floods and heat waves are on the natural hazards page.
Natural hazards →What a year in North Mankato feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
North Mankato and its neighbors
Mankato has the coldest January nights next door (6°) and Mankato the hottest July afternoons (82°). Tap a town to see its climate.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value. Snow and frost-free days come from the nearest weather station, so neighbors often share them.
How North Mankato compares
Against every U.S. town on TownTapestry, each counted once, with its place in Minnesota.
North Mankato weather by month
Average highs, lows, rain and snow for every month, from NOAA’s 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | Snow on ground | 30-yr range |
|---|---|---|---|---|---|---|---|
| January | 24° | 6° | 0.8" | 8.2" | 6 | 25 | 4° – 27° |
| February | 29° | 11° | 0.9" | 6.9" | 5 | 20 | 9° – 31° |
| March | 41° | 23° | 1.6" | 7.4" | 8 | 10 | 24° – 48° |
| April | 57° | 35° | 3.2" | 1.6" | 10 | 1 | 35° – 55° |
| May | 70° | 48° | 4.3" | 0 | 11 | 0 | 53° – 66° |
| June | 80° | 59° | 4.9" | 0 | 12 | 0 | 65° – 73° |
| July | 83° | 62° | 4.2" | 0 | 9 | 0 | 65° – 78° |
| August | 80° | 59° | 4.1" | 0 | 9 | 0 | 65° – 74° |
| September | 74° | 51° | 3.2" | 0 | 8 | 0 | 55° – 67° |
| October | 59° | 38° | 2.4" | 0.1" | 8 | 0 | 42° – 54° |
| November | 43° | 25° | 1.5" | 5.9" | 6 | 6 | 24° – 46° |
| December | 29° | 13° | 1.1" | 8.6" | 7 | 19 | 6° – 28° |
| Year | 56° | 36° | 32.2" | 38.7" | 99 | 82 |
Heating and cooling a home in North Mankato
92% of the work is heating, so the furnace matters far more than the air conditioner.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. Source: NOAA station normals.
How much a month can swing
A normal is an average. March swings the most: from 1991 to 2020 its average ranged from 24° to 48°. June is the most reliable, staying within 8°.
Common questions about North Mankato’s climate
What is the coldest month in North Mankato?
January, with a typical high of 24° and a low of 6°.
What is the hottest month in North Mankato?
July, with a typical high of 83° and a low of 62°. About 10 days a year reach 90°.
How much snow does North Mankato get?
About 39 inches in a normal winter, most of it in December.
When is the first frost in North Mankato?
In half of years the first 32° night comes by October 9, and the last spring frost by April 30.
What is the rainiest month in North Mankato?
June, with 4.9 inches of rain and melted snow. The year totals 32 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in North Mankato.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for North Mankato itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Mankato, MN (2 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000. Today’s forecast: National Weather Service.