Preston, MN climate
Preston has cold, snowy winters and pleasant summers. A typical July afternoon reaches 82°, a January night drops to 7°, and about 42 inches of snow falls in a normal winter.
NOAA 1991-2020 climate normals Updated once a decadeWhat a year in Preston feels like
Winter
Spring
Summer
Fall
Preston 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° | 7° | 1.1" | 11.0" | 8 | 25 | 5° – 29° |
| February | 29° | 11° | 1.1" | 8.2" | 7 | 24 | 7° – 32° |
| March | 42° | 22° | 1.9" | 7.5" | 9 | 14 | 24° – 49° |
| April | 57° | 34° | 3.9" | 2.5" | 11 | 1 | 34° – 52° |
| May | 69° | 46° | 4.6" | 0.3" | 14 | 0 | 51° – 64° |
| June | 78° | 56° | 5.8" | 0 | 13 | 0 | 64° – 71° |
| July | 82° | 60° | 4.4" | 0 | 11 | 0 | 64° – 77° |
| August | 79° | 57° | 4.3" | 0 | 10 | 0 | 63° – 74° |
| September | 72° | 49° | 3.7" | 0 | 10 | 0 | 54° – 66° |
| October | 59° | 37° | 2.7" | 0.3" | 10 | 0 | 41° – 54° |
| November | 43° | 25° | 1.9" | 2.6" | 7 | 4 | 25° – 46° |
| December | 29° | 14° | 1.3" | 9.8" | 9 | 19 | 7° – 31° |
| Year | 55° | 35° | 36.4" | 42.2" | 119 | 88 |
“Wet days” have at least 0.01" of rain or melted snow. “Snow on ground” counts days with 1" or more. The 30-year range is the coldest and warmest that month’s average temperature got between 1991 and 2020.
Rain and snow in Preston
Preston gets 36 inches of rain and melted snow a year. June is the wettest month and January the driest. Rain or snow falls on about 119 days a year. Snow covers the ground about 88 days of the year.
About 136 frost-free days a year
In half of years the last 32° night comes by May 14 and the first one by September 28. That leaves about 136 frost-free days for gardens, shorter than 92% of U.S. towns.
Heating and cooling a home in Preston
Engineers use “degree days” to estimate how hard a furnace or air conditioner works. In Preston, 95% of that work is heating and 5% is cooling, so the furnace matters far more than the air conditioner.
Degree days measure how far each day’s average temperature falls below or rises above 65°, added up over a year. Source: NOAA station normals.
Preston and its neighbors
Preston borders 4 towns with climate data. January nights across them vary by 0.4°. Carimona has the coldest January nights (6°) and Carrolton the hottest July afternoons (82°). Preston’s January low is 7° and its July high 82°.
Temperatures and rain come from NOAA’s 5 km grid, so each town gets its own value.
How Preston compares
Compared with every U.S. town and city on TownTapestry, each counted once.
Warmer than it used to be
The last 30 years in Preston averaged 0.9° warmer than the 1900s. The biggest change is in December (+2.8°). The shift is smaller than in 78% of U.S. towns.
Change by month1991–2020 average minus 1901–2000 average, at Preston’s spot on NOAA’s grid
How much a month can swing
A normal is an average, and real years wander around it. March swings the most: between 1991 and 2020 its average temperature ranged from 24° to 49°. June is the most reliable, staying within 8°.
Common questions about Preston’s climate
What is the coldest month in Preston?
January, with a typical high of 24° and a low of 7°.
What is the hottest month in Preston?
July, with a typical high of 82° and a low of 60°. About 8 days a year reach 90°.
How much snow does Preston get?
About 42 inches in a normal winter, most of it in January.
When is the first frost in Preston?
In half of years the first 32° night comes by September 28, and the last spring frost by May 14.
What is the rainiest month in Preston?
June, with 5.8 inches of rain and melted snow. The year totals 36 inches.
Temperatures and rainfall come from NOAA’s gridded climate normals for Preston itself (about a 3-mile square). Snow, frost dates and day counts come from NOAA’s weather station at Preston, MN (1 mi) away. Normals are 30-year averages, not a forecast. Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000.