Photo: Lorie Shaull · CC BY-SA 4.0Finlayson has some of the coldest winter nights among U.S. towns
The warmest part of a July day comes in at 80° on average. By July afternoons alone, it runs cooler than 93% of U.S. towns. December has warmed most since 1901–2000, part of a 1.9° rise. Tender plants can go out after about May 13; in half of years the first frost comes by September 29.
A year in Finlayson at a glance
Each month’s typical high and low, and what it brings.
What stands out about Finlayson’s climate
Compared with towns across the U.S., with Finlayson’s place in Minnesota beside it.
What a year in Finlayson feels like
Typical highs and lows by season and by month, from NOAA’s 30-year normals.
About 137 frost-free days a year
In half of years the last 32° night comes by May 13 and the first by September 29. Frost and day counts come from NOAA’s station at Sandstone 6 W, MN, 7 miles from the town’s center, at about the same height.
The 2023 USDA map puts Finlayson’s center in zone 4a: the coldest night of a typical winter, averaged over 1991–2020, reaches about −26°. 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 45 inches of snow a winter
Snow, measured at Hinckley, MN, is heaviest from November through December, about 9 inches a month. Precipitation (rain plus melted snow) adds up to 31 inches a year; June is the wettest month and January the driest. Rain or snow falls on about 112 days a year.
Rain + melted snow by month
Inches of water
Snowfall by month
Inches of snow
Heating and cooling a home in Finlayson
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 Sandstone 6 W, MN.
Living with Finlayson’s climate
What the numbers mean for a garden, a free afternoon and a bad-weather day.
137 frost-free days in zone 4a. The last frost comes by May 13 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 29.
Months with highs of 62–84° and lows of 40° or more: May, June, July, August and September.
Parks & trails →Of the yearly building losses FEMA expects in Finlayson from natural hazards, river flooding is the largest share (54%); heat waves, cold waves, winter storms and ice storms together are 32%. Normals are averages; the hazards page covers the extremes.
Natural hazards →Finlayson and its neighbors
Every town next door is within a degree of Finlayson in January and July, closer than the 5 km grid can tell apart. Tap a town to see its climate.
Climates most like Finlayson’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 |
|---|---|---|---|---|
| Finlayson, MN | 1° | 80° | 31" | 45" |
| Antigo, WI | 5° | 79° | 32" | 54" |
| Kingsford, MI | 5° | 80° | 29" | 61" |
| Watertown, SD | 2° | 81° | 25" | 41" |
| Wahpeton, ND | 1° | 82° | 25" | 50" |
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 Finlayson averaged 1.9° warmer than the 1900s. The biggest change is in December (+4.2°).
A bigger shift than in 83% 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 Finlayson compares
Against 12,954 U.S. towns of 2,500 or more (one per 5 km climate cell), with Finlayson’s place among Minnesota’s.
Finlayson weather by month
Highs, lows and precipitation from NOAA’s grid at Finlayson’s center; snow, wet days and snow on the ground from Hinckley, MN. 1991–2020 normals.
| Month | High | Low | Rain + melt | Snow | Wet days | 30-yr range |
|---|---|---|---|---|---|---|
| January | 20° | 1° | 0.8" | 7.3" | 8 | −2° – 25° |
| February | 26° | 5° | 0.8" | 7.7" | 7 | 5° – 30° |
| March | 39° | 18° | 1.5" | 7.7" | 7 | 19° – 41° |
| April | 53° | 30° | 2.6" | 3.7" | 10 | 32° – 49° |
| May | 66° | 41° | 3.5" | 0.1" | 12 | 48° – 60° |
| June | 75° | 51° | 4.5" | 0.0" | 13 | 59° – 66° |
| July | 80° | 57° | 4.5" | 0.0" | 11 | 61° – 73° |
| August | 78° | 54° | 3.9" | 0.0" | 10 | 60° – 69° |
| September | 69° | 47° | 3.2" | 0.0" | 10 | 50° – 63° |
| October | 55° | 35° | 3.0" | 0.7" | 11 | 37° – 49° |
| November | 39° | 22° | 1.6" | 8.8" | 7 | 21° – 41° |
| December | 25° | 9° | 1.1" | 8.8" | 8 | 5° – 27° |
| Year | 52° | 31° | 31.1" | 44.8" | 112 |
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 7°.
Where Finlayson’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 Finlayson’s center.
- Snow: Hinckley, MN.
- Frost, freezing nights, 90° and 100° days, heating and cooling: Sandstone 6 W, MN, 7 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 Finlayson’s climate
What is the weather like in Finlayson?
A typical July afternoon reaches 80°, a January night drops to 1°, and about 45 inches of snow falls in a normal winter. Colder January nights than all but 67 U.S. towns; cooler July afternoons than 93% of U.S. towns.
How cold does it get in Finlayson in winter?
January nights average 1°. About 177 nights a year reach 32° or below and 39 reach 0° or below. In the coldest January of the last 30 years the month averaged −2°.
How much snow does Finlayson get?
About 45 inches in a normal winter at Hinckley, MN, heaviest from November through December, about 9 inches a month.
How hot does it get in Finlayson?
July, with a typical high of 80° and a low of 57°. About 2 days a year reach 90° (Sandstone 6 W, MN).
When is the first and last frost in Finlayson?
In half of years the last spring frost (32°) comes by May 13 and the first fall frost by September 29, about 137 frost-free days, at Sandstone 6 W, MN.
What growing zone is Finlayson in?
Zone 4a on the 2023 USDA Plant Hardiness Zone Map: the coldest night of a typical winter reaches about −26°.
What is the best time of year to visit Finlayson?
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 Finlayson getting warmer?
Yes: 1991–2020 averaged 1.9° warmer than 1901–2000 on NOAA’s grid. A bigger shift than 83% of U.S. towns.
Neighbors talk weather
Gardens, snow, and the best days of the year in Finlayson.
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.