Hart Lake has cold, snowy winters and pleasant summers
A typical July afternoon reaches 79°, a January night drops to -2°, and about 49 inches of snow falls in a normal winter.
A year in Hart Lake at a glance
Each month’s typical high and low, and what it brings.
What stands out about Hart Lake’s climate
Read from where Hart Lake sits among Minnesota’s towns. The page puts what stands out first.
Living with Hart Lake’s climate
What the numbers mean for a garden, a driveway, a furnace and a free afternoon.
131 frost-free days. The last frost comes by May 17 in half of years, so many gardeners wait a week or two past that to set out tomatoes. The first fall frost comes by Sep 26.
About 49" a winter over 17 days with an inch or more, most in December.
Months averaging under 55° run from October through May. Heating is 96% of the year’s heating-and-cooling load.
About 4 days a year reach 90°, and July afternoons average 79°.
The nicest months are May, June, July, August and September. 1.9 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 Hart Lake feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 131 frost-free days a year
In half of years the last 32° night comes by May 17 and the first by September 26.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
Warmer than it used to be
The last 30 years in Hart Lake averaged 1.8° warmer than the 1900s. The biggest change is in January (+4.3°).
A bigger shift than in 89% of U.S. towns.
Change by month
49 inches of snow, 26 of rain and melt
June is the wettest month and February the driest. Rain or snow falls on about 111 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Hart Lake and its neighbors
Farden has the coldest January nights next door (-2°) and Wilkinson the hottest July afternoons (79°). 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 Hart Lake compares
Against every U.S. town on TownTapestry, each counted once, with its place in Minnesota.
Hart Lake 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 | 30-yr range |
|---|---|---|---|---|---|---|
| January | 18° | -2° | 0.7" | 9.1" | 8 | -5° – 23° |
| February | 24° | 2° | 0.7" | 9.3" | 7 | 1° – 29° |
| March | 37° | 16° | 1.1" | 6.2" | 7 | 16° – 39° |
| April | 52° | 29° | 1.9" | 5.6" | 9 | 32° – 49° |
| May | 65° | 42° | 3.0" | 0 | 12 | 48° – 60° |
| June | 75° | 53° | 4.3" | 0 | 13 | 59° – 69° |
| July | 79° | 57° | 3.8" | 0 | 11 | 60° – 73° |
| August | 77° | 55° | 3.2" | 0 | 9 | 59° – 70° |
| September | 68° | 46° | 2.9" | 0 | 10 | 50° – 63° |
| October | 53° | 34° | 2.6" | 1.4" | 10 | 36° – 49° |
| November | 36° | 20° | 1.2" | 5.8" | 7 | 18° – 40° |
| December | 23° | 7° | 0.9" | 11.5" | 9 | 1° – 24° |
| Year | 50° | 30° | 26.2" | 48.9" | 111 |
Heating and cooling a home in Hart Lake
96% 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. January swings the most: from 1991 to 2020 its average ranged from -5° to 23°. June is the most reliable, staying within 10°.
Common questions about Hart Lake’s climate
What is the coldest month in Hart Lake?
January, with a typical high of 18° and a low of -2°.
What is the hottest month in Hart Lake?
July, with a typical high of 79° and a low of 57°. About 4 days a year reach 90°.
How much snow does Hart Lake get?
About 49 inches in a normal winter, most of it in December.
When is the first frost in Hart Lake?
In half of years the first 32° night comes by September 26, and the last spring frost by May 17.
What is the rainiest month in Hart Lake?
June, with 4.3 inches of rain and melted snow. The year totals 26 inches.
Neighbors talk weather
Gardens, snow, and the best days of the year in Hart Lake.
Your answer becomes a post in Town Square.
Temperatures and rainfall come from NOAA’s gridded climate normals for Hart Lake itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Cass Lake, MN (8 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.