Windom, Minnesota climate: Normal weather by month, frost dates and records
Windom's normal year runs from 8°F January nights to 84°F July afternoons, with 31.7 inches of precipitation and 44 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 8.2°C, January lows of −13°C, July highs of 29°C, 806 mm of precipitation a year.
- NOAA stationWindom
- Station IDUSC00219033
- Location43.88°N 95.12°W
- Elevation1,384 ft (422 m)
- From the centerunder 1 mile
- Population4,797
On October 22, the normal high in Windom is 57°F and the normal low 36°F, and the chance of measurable rain or snow is 25%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Windom.
- Jan 25° 8°
- Feb 30° 12°
- Mar 43° 24°
- Apr 58° 36°
- May 71° 48°
- Jun 81° 59°
- Jul 84° 63°
- Aug 81° 61°
- Sep 75° 52°
- Oct 61° 39°
- Nov 44° 25°
- Dec 30° 14°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like in Windom each month?
July is the warmest month, with normal highs of 84°F; January the coldest, with normal lows of 8°F. The most precipitation falls in June (4.73 in), the least in February (0.83 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 25°F | 8°F | 16.7°F | 0.89 | 8.4 | 7 | <1 | 31 | 9 h 10 min |
| February | 30°F | 12°F | 21.0°F | 0.83 | 9.0 | 7 | <1 | 27 | 10 h 30 min |
| March | 43°F | 24°F | 33.3°F | 1.76 | 7.3 | 8 | <1 | 25 | 11 h 50 min |
| April | 58°F | 36°F | 46.8°F | 3.21 | 4.2 | 10 | <1 | 12 | 13 h 20 min |
| May | 71°F | 48°F | 59.4°F | 4.48 | 0.1 | 12 | 1 | 2 | 14 h 40 min |
| June | 81°F | 59°F | 70.0°F | 4.73 | 0.0 | 12 | 3 | <1 | 15 h 30 min |
| July | 84°F | 63°F | 73.8°F | 3.93 | 0.0 | 10 | 5 | <1 | 15 h 10 min |
| August | 81°F | 61°F | 71.0°F | 3.69 | 0.0 | 9 | 2 | <1 | 14 h |
| September | 75°F | 52°F | 63.5°F | 3.20 | 0.0 | 9 | 1 | 1 | 12 h 40 min |
| October | 61°F | 39°F | 49.6°F | 2.45 | 0.9 | 8 | <1 | 10 | 11 h 10 min |
| November | 44°F | 25°F | 34.5°F | 1.50 | 5.2 | 6 | <1 | 24 | 9 h 40 min |
| December | 30°F | 14°F | 22.1°F | 1.07 | 8.4 | 8 | <1 | 30 | 9 h |
| Year (annual) | 57°F | 37°F | 46.8°F | 31.74 | 43.5 | 106 | 13 | 162 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −4°C | −13°C | −8.5°C | 23 mm | 21 cm |
| February | −1°C | −11°C | −6.1°C | 21 mm | 23 cm |
| March | 6°C | −4°C | 0.7°C | 45 mm | 19 cm |
| April | 14°C | 2°C | 8.2°C | 82 mm | 11 cm |
| May | 21°C | 9°C | 15.2°C | 114 mm | 0 cm |
| June | 27°C | 15°C | 21.1°C | 120 mm | 0 cm |
| July | 29°C | 17°C | 23.2°C | 100 mm | 0 cm |
| August | 27°C | 16°C | 21.7°C | 94 mm | 0 cm |
| September | 24°C | 11°C | 17.5°C | 81 mm | 0 cm |
| October | 16°C | 4°C | 9.8°C | 62 mm | 2 cm |
| November | 6°C | −4°C | 1.4°C | 38 mm | 13 cm |
| December | −1°C | −10°C | −5.5°C | 27 mm | 21 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00219033; annual normals. Wet days: 0.01 inch or more; 90°F days and freezing nights: NOAA's day counts. Daylight: sunrise to sunset on the 15th, computed from the latitude.
When is the best weather to visit Windom?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, September has the fewest days with rain (9).
That is a measurement, not a recommendation: it counts the months whose normal afternoon high sits between 65°F and 85°F, where a light layer is enough by day.
Source: NOAA NCEI 1991-2020 monthly normals, station USC00219033.
When is the last frost in Windom?
In Windom, the last spring frost (32°F) comes after April 30 in half of years and after May 13 in one year in ten; the first autumn frost comes before October 10 in half of years and before September 25 in one year in ten.
Frost-free in half of yearsFrost in 1 to 9 years out of 10Frost most years
- Last spring frost, half of years after
- April 301 year in 10 after May 13; 9 in 10 after April 15
- First autumn frost, half of years before
- October 101 year in 10 before September 25; 9 in 10 before October 24
NOAA puts the median frost-free season at 162 days, and the season without a hard freeze (28°F) at 182 days.
A hard freeze (28°F) comes after April 19 in half of springs and before October 21 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Windom in zone 5a in ZIP code 56101, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Windom's NOAA station is in zone 5a: the coldest night of a typical year reaches −18°F (28 complete years).
Frost dates for every NOAA station in Minnesota · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00219033; USDA 2023 Plant Hardiness Zone Map, ZIP listings: PRISM Group, Oregon State University, https://prism.oregonstate.edu, accessed October 8, 2026; the station zone: ACIS daily lows, 1991-2020. A 10% date means one year in ten has a frost after it in spring or before it in autumn.
How hot and how cold does it get in Windom?
In a normal year in Windom, 13 days a year reach 90°F, 162 nights fall to 32°F or colder and 106 days bring measurable precipitation.
- Days at 90°F or more
- 13a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 162a normal year
- Days that stay below freezing
- 72high of 32°F or less
- Days with 0.01 inch of precipitation
- 106a normal year
- Days with 1 inch of snow or more
- 17a normal year
The highest temperature in this station's record (since 1905) is 105°F, on August 1, 1988; the lowest is −36°F, on January 7, 1988.
The wettest calendar year on that record is 1993, with 41.69 in; the snowiest season is 2017–18, with 79.5 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00219033; records: ACIS (NOAA Regional Climate Centers), station USC00219033. Records use complete months only; a month missing more than three days is left out.
How sunny is Windom?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Windom, 4.1 kWh per square metre a day. July is the sunniest month (84%) and December the cloudiest (69%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 74% | 2.0 |
| February | 79% | 3.1 |
| March | 72% | 3.9 |
| April | 70% | 4.9 |
| May | 70% | 5.6 |
| June | 76% | 6.3 |
| July | 84% | 6.6 |
| August | 81% | 5.5 |
| September | 79% | 4.4 |
| October | 73% | 3.0 |
| November | 72% | 2.0 |
| December | 69% | 1.6 |
Source: NASA POWER solar climatology, 2001-2020 (CERES SYN1deg). Satellite-based, for the 1-degree cell (about 100 km across) around the station, so it describes the area rather than the airport.
How much heating and cooling does Windom need?
A normal year in Windom brings 7,402 heating degree days, 38% more than the median U.S. place (5,373), and 813 cooling degree days, 10% fewer than the median (908). Seven months need 300 or more heating degree days, a monthly mean of about 55°F or colder. For gardens and crops, NOAA counts 2,952 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,499 | 0 |
| February | 1,232 | 0 |
| March | 982 | 0 |
| April | 550 | 4 |
| May | 223 | 49 |
| June | 35 | 183 |
| July | 7 | 281 |
| August | 15 | 203 |
| September | 129 | 84 |
| October | 484 | 9 |
| November | 917 | 0 |
| December | 1,330 | 0 |
| Year (annual) | 7,402 | 813 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00219033. A degree day is one degree of a day's mean temperature below 65°F (heating) or above it (cooling); utilities use them to estimate energy use.
Has Windom been warmer than normal lately?
2025 averaged 48.1°F, 1.3°F above the 1991-2020 normal of 46.8°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 48.8°F | +2.0°F | 27.88 | – |
| 2022 | 45.4°F | −1.4°F | 23.86 | – |
| 2023 | 48.0°F | +1.2°F | 28.64 | – |
| 2024 | 50.1°F | +3.3°F | – | – |
| 2025 | 48.1°F | +1.3°F | – | – |
Over 74 complete years from 1908 to 2025, the station's annual mean temperature rose at a fitted 3.5°F per century (+0.19°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00219033; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Windom's climate compare?
Windom is warmer than 124 of the other 128 places with their own NOAA record in Minnesota, and wetter than 81. Across the 7,247 U.S. stations with normals, its annual mean of 46.8°F is warmer than 27%.
In the Köppen classification computed from these normals, Windom is Dfa: continental, no dry season, hot summer. What the classes mean.
Places with the most similar year elsewhere
Measured month by month on the normal high, low and precipitation, among places of 20,000 or more people in other states:
Source: NOAA NCEI 1991-2020 normals for every station PlainClimate covers. Similarity: the root-mean-square difference of the 36 monthly figures, precipitation weighted so an inch counts like 6°F.
Which places near Windom share this climate record?
5 places have no NOAA station with 1991-2020 normals of their own, and this station is the nearest full record. A place's own climate can differ from these figures, by several degrees where it sits much higher or lower than the station, nearer the coast, or inside a large city's heat; for the larger places the next nearest records are named with their yearly mean, so the spread around them is visible, and places of 50,000 or more have their own page with NOAA's gridded normals.
- Mountain Lake, MN1,944 people · 10 mi NE
- Jeffers, MN338 people · 13 mi N
- Bingham Lake, MN133 people · 4 mi NE
- Fish Lake, MN57 people · 4 mi SE
- Wilder, MN57 people · 6 mi SW
Source: Census Bureau 2024 Gazetteer (place centers) and Vintage 2024 population estimates. Distance and direction from the station to each place's center.
Questions about Windom's climate
What is the coldest month in Windom?
January, with a normal high of 25°F and a normal low of 8°F. The warmest is July (84°F by day, 63°F at night).
Does it snow in Windom?
Yes: 44 inches in a normal year, falling on 25 days with 0.1 inch or more, the most in February (9.0 inches).
What is the rainiest month in Windom?
June, with 4.73 in of precipitation in a normal year; the driest is February with 0.83 in.
What plant hardiness zone is Windom in?
The USDA's 2023 map puts Windom in zone 5a in ZIP code 56101, the nearest ZIP area. By the same method at Windom's NOAA station, the coldest night of a typical year reaches −18°F (28 years, 1991-2020): zone 5a.
How late can frost come in Windom?
In half of years the last 32°F night comes after April 30; in one year in ten it comes after May 13. Waiting until May 13 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Minnesota climateThe statewide normals and every place in the state
- Lakefield, MN12 miles from this station, 44.0°F a year
- Sherburn, MN24 miles from this station, 45.0°F a year
- St. James, MN26 miles from this station, 45.4°F a year
- Springfield, MN26 miles from this station, 44.4°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made