Photo: Elkman · CC BY-SA 3.0Aitkin has some of the coldest winter nights among U.S. towns
July afternoons average 80°. Summers stay cool: July afternoons here are cooler than in 94% of U.S. towns. Compared with 1901–2000, the average now sits 2.1° higher. Central heating does most of its work from October to April, in months below 50° on average.
A year in Aitkin at a glance
Each month’s typical high and low, and what it brings.
What stands out about Aitkin’s climate
Compared with towns across the U.S., with Aitkin’s place in Minnesota beside it.
What a year in Aitkin feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 133 frost-free days a year
In half of years the last 32° night comes by May 16 and the first by September 28. Frost and day counts come from NOAA’s station at Aitkin 2e, MN, 1.8 miles from the town’s center, at about the same height.
The 2023 USDA map puts Aitkin’s center in zone 4a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −27°. Plant labels use the zone; frost dates tell you when to plant.
Freezing nights by month
Average nights at or below 32°
90° days by month
Average days at 90° or more
About 43 inches of snow a winter
Snow, measured at Isle 12n, MN, falls mostly in January. Precipitation (rain plus melted snow) adds up to 30 inches a year; July is the wettest month and February the driest. Rain or snow falls on about 89 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Aitkin
97% of the work is heating, so the furnace matters far more than the air conditioner. Months averaging under 55° run from October through May.
Degree days add up how far each day’s average falls below (heating) or rises above (cooling) 65° over a year. NOAA normals at Aitkin 2e, MN.
Living with Aitkin’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
133 frost-free days in zone 4a. The last frost comes by May 16 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 28.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September. 0.2 miles of trails are waiting.
Parks & trails →Of the yearly building losses FEMA expects in Aitkin from natural hazards, river flooding is the largest share (75%); heat waves, cold waves, winter storms and ice storms together are 20%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Aitkin and its neighbors
Every town next door is within a degree of Aitkin in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Aitkin’s, farther away
TownRatings’ own comparison of NOAA 1991–2020 normals, not a NOAA product: places of 5,000+ at least 150 miles away, one per state, closest on January low, July high, precipitation and snow.
| Town | Jan. low | July high | Precip. | Snow |
|---|---|---|---|---|
| Aitkin, MN | 0° | 80° | 30" | 43" |
| Antigo, WI | 5° | 79° | 32" | 54" |
| Watertown, SD | 2° | 81° | 25" | 41" |
| Kingsford, MI | 5° | 80° | 29" | 61" |
| Grand Forks, ND | −2° | 81° | 22" | 49" |
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.
Warmer than it used to be
The last 30 years in Aitkin averaged 2.1° warmer than the 1900s. The biggest change is in December (+4.2°).
A bigger shift than in 94% of U.S. towns.
Change by month
The two periods overlap (1991–2000 is in both), which makes the gap a little smaller than it would be between separate periods.
How Aitkin compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Aitkin’s place among Minnesota’s.
Aitkin weather by month
Highs, lows and precipitation from NOAA’s grid at Aitkin’s center; snow, wet days and snow on the ground from Isle 12n, MN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 20° | 0° | 0.8" | 10.1" | 5 | −2° – 25° |
| February | 26° | 4° | 0.8" | 7.2" | 5 | 4° – 30° |
| March | 38° | 17° | 1.4" | 8.6" | 6 | 18° – 41° |
| April | 53° | 30° | 2.3" | 2.4" | 7 | 32° – 49° |
| May | 66° | 42° | 3.5" | 0.4" | 10 | 48° – 60° |
| June | 75° | 52° | 4.5" | 0.0" | 10 | 60° – 68° |
| July | 80° | 57° | 4.5" | 0.0" | 10 | 61° – 73° |
| August | 77° | 55° | 3.5" | 0.0" | 9 | 61° – 70° |
| September | 69° | 47° | 3.1" | 0.0" | 8 | 51° – 65° |
| October | 54° | 35° | 2.9" | 1.1" | 8 | 36° – 51° |
| November | 38° | 22° | 1.4" | 4.9" | 6 | 21° – 41° |
| December | 25° | 9° | 1.0" | 8.4" | 6 | 3° – 26° |
| Year | 52° | 31° | 29.5" | 43.1" | 89 |
How much a month can swing
A normal is an average. January swings the most: from 1991 to 2020 its average ranged from -2° to 25°. June is the most reliable, staying within 8°.
Where Aitkin’s numbers come from
Normals are 30-year averages, not a forecast. How TownRatings reads climate data →
- Temperatures and precipitation: NOAA’s gridded 1991–2020 normals for the 5 km cell at Aitkin’s center.
- Snow: Isle 12n, MN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Aitkin 2e, MN, 1.8 miles from the town’s center, at about the same height; the nearest station that passes our checks for distance, height and agreement with the grid.
- Growing zone: USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service and PRISM Group, Oregon State University, prism.oregonstate.edu/phzm, accessed 8 Oct 2026.
- Then and now: NOAA’s gridded normals for 1901–2000 at the same cell.
- Storms and extremes: FEMA National Risk Index (expected annual losses to buildings).
Common questions about Aitkin’s climate
What is the weather like in Aitkin?
A typical July afternoon reaches 80°, a January night drops to 0°, and about 43 inches of snow falls in a normal winter. Colder January nights than all but 52 U.S. towns; cooler July afternoons than 94% of U.S. towns.
How cold does it get in Aitkin in winter?
January nights average 0°. About 187 nights a year reach 32° or below and 44 reach 0° or below. In the coldest January of the last 30 years the month averaged −2°.
How much snow does Aitkin get?
About 43 inches in a normal winter at Isle 12n, MN, most of it in January.
How hot does it get in Aitkin?
July, with a typical high of 80° and a low of 57°. About 3 days a year reach 90° (Aitkin 2e, MN).
When is the first and last frost in Aitkin?
In half of years the last spring frost (32°) comes by May 16 and the first fall frost by September 28, about 133 frost-free days, at Aitkin 2e, MN.
What growing zone is Aitkin in?
Zone 4a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −27°.
What is the best time of year to visit Aitkin?
By one simple rule (highs of 62–84° and lows of 40° or more), May, June, July, August and September. The rule is ours, not NOAA’s; the month table has the numbers to judge by.
Is Aitkin getting warmer?
Yes: 1991–2020 averaged 2.1° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 94% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Aitkin.
Source: NOAA NCEI U.S. Climate Normals, 1991–2020 and 1901–2000; USDA/PRISM 2023 hardiness zones; FEMA National Risk Index. Today’s forecast: National Weather Service.