Glenwood, Minnesota climate: Normal weather by month, frost dates and records
Glenwood's normal year runs from 2°F January nights to 83°F July afternoons, with 26.4 inches of precipitation and 46 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.3°C, January lows of −17°C, July highs of 28°C, 672 mm of precipitation a year.
- NOAA stationGlenwood (2 mi WNW)
- Station IDUSC00213174
- Location45.66°N 95.44°W
- Elevation1,198 ft (365 m)
- Population2,657
On October 24, the normal high in Glenwood is 54°F and the normal low 31°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 Glenwood.
- Jan 23° 2°
- Feb 27° 5°
- Mar 40° 19°
- Apr 57° 31°
- May 70° 44°
- Jun 79° 54°
- Jul 83° 58°
- Aug 81° 56°
- Sep 74° 47°
- Oct 59° 34°
- Nov 41° 21°
- Dec 28° 8°
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 Glenwood each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 2°F. The most precipitation falls in June (4.31 in), the least in January (0.48 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 23°F | 2°F | 12.1°F | 0.48 | 10.6 | 6 | <1 | 31 | 9 h |
| February | 27°F | 5°F | 16.3°F | 0.52 | 8.9 | 5 | <1 | 27 | 10 h 20 min |
| March | 40°F | 19°F | 29.4°F | 1.14 | 7.6 | 6 | <1 | 27 | 11 h 50 min |
| April | 57°F | 31°F | 43.9°F | 2.12 | 2.9 | 9 | <1 | 16 | 13 h 30 min |
| May | 70°F | 44°F | 57.0°F | 2.99 | 0.0 | 11 | 1 | 3 | 14 h 50 min |
| June | 79°F | 54°F | 66.3°F | 4.31 | 0.0 | 12 | 2 | <1 | 15 h 40 min |
| July | 83°F | 58°F | 70.4°F | 4.13 | 0.0 | 11 | 4 | <1 | 15 h 20 min |
| August | 81°F | 56°F | 68.3°F | 3.74 | 0.0 | 9 | 2 | <1 | 14 h 10 min |
| September | 74°F | 47°F | 60.3°F | 2.93 | 0.0 | 8 | <1 | 2 | 12 h 40 min |
| October | 59°F | 34°F | 46.5°F | 2.46 | 0.6 | 9 | <1 | 12 | 11 h |
| November | 41°F | 21°F | 31.1°F | 0.96 | 5.3 | 6 | <1 | 26 | 9 h 30 min |
| December | 28°F | 8°F | 18.1°F | 0.66 | 10.4 | 7 | <1 | 31 | 8 h 40 min |
| Year (annual) | 55°F | 31°F | 43.3°F | 26.44 | 46.3 | 97 | 9 | 175 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −5°C | −17°C | −11.1°C | 12 mm | 27 cm |
| February | −3°C | −15°C | −8.7°C | 13 mm | 23 cm |
| March | 5°C | −7°C | −1.4°C | 29 mm | 19 cm |
| April | 14°C | −1°C | 6.6°C | 54 mm | 7 cm |
| May | 21°C | 6°C | 13.9°C | 76 mm | 0 cm |
| June | 26°C | 12°C | 19.1°C | 109 mm | 0 cm |
| July | 28°C | 14°C | 21.3°C | 105 mm | 0 cm |
| August | 27°C | 13°C | 20.2°C | 95 mm | 0 cm |
| September | 23°C | 8°C | 15.7°C | 74 mm | 0 cm |
| October | 15°C | 1°C | 8.1°C | 62 mm | 2 cm |
| November | 5°C | −6°C | −0.5°C | 24 mm | 13 cm |
| December | −2°C | −13°C | −7.7°C | 17 mm | 26 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00213174; 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 Glenwood?
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 (8).
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 USC00213174.
When is the last frost in Glenwood?
In Glenwood, the last spring frost (32°F) comes after May 11 in half of years and after May 27 in one year in ten; the first autumn frost comes before September 27 in half of years and before September 13 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
- May 111 year in 10 after May 27; 9 in 10 after April 28
- First autumn frost, half of years before
- September 271 year in 10 before September 13; 9 in 10 before October 9
NOAA puts the median frost-free season at 139 days, and the season without a hard freeze (28°F) at 156 days.
A hard freeze (28°F) comes after May 1 in half of springs and before October 6 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Glenwood in zone 4b in ZIP code 56334, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Glenwood's NOAA station is in zone 4a: the coldest night of a typical year reaches −25°F (25 complete years); the map interpolates between stations and terrain, so the station and the ZIP area can differ by half a zone.
Frost dates for every NOAA station in Minnesota · Frost dates by ZIP code
Source: NOAA NCEI 1991-2020 annual normals (frost probabilities), station USC00213174; 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 Glenwood?
In a normal year in Glenwood, 9 days a year reach 90°F, 175 nights fall to 32°F or colder and 97 days bring measurable precipitation.
- Days at 90°F or more
- 9a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 175a normal year
- Days that stay below freezing
- 77high of 32°F or less
- Days with 0.01 inch of precipitation
- 97a normal year
- Days with 1 inch of snow or more
- 19a normal year
The highest temperature in this station's record (since 1895) is 103°F, on July 31, 1988; the lowest is −41°F, on January 28, 1951.
The wettest calendar year on that record is 2005, with 36.90 in; the snowiest season is 1950–51, with 76.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00213174; records: ACIS (NOAA Regional Climate Centers), station USC00213174. Records use complete months only; a month missing more than three days is left out.
How sunny is Glenwood?
Over a year 74% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Glenwood, 3.9 kWh per square metre a day. July is the sunniest month (82%) and December the cloudiest (61%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 75% | 1.8 |
| February | 81% | 3.0 |
| March | 72% | 3.8 |
| April | 70% | 4.8 |
| May | 69% | 5.5 |
| June | 74% | 6.1 |
| July | 82% | 6.5 |
| August | 80% | 5.4 |
| September | 76% | 4.1 |
| October | 69% | 2.6 |
| November | 67% | 1.7 |
| December | 61% | 1.2 |
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 Glenwood need?
A normal year in Glenwood brings 8,360 heating degree days, 56% more than the median U.S. place (5,373), and 491 cooling degree days, 46% 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 2,387 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,641 | 0 |
| February | 1,365 | 0 |
| March | 1,104 | 0 |
| April | 634 | 1 |
| May | 276 | 27 |
| June | 62 | 100 |
| July | 17 | 184 |
| August | 31 | 134 |
| September | 183 | 43 |
| October | 576 | 3 |
| November | 1,017 | 0 |
| December | 1,454 | 0 |
| Year (annual) | 8,360 | 491 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00213174. 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 Glenwood been warmer than normal lately?
Over 50 complete years from 1951 to 2016, the station's annual mean temperature rose at a fitted 4.2°F per century (+0.23°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Glenwood's climate compare?
Glenwood is warmer than 64 of the other 128 places with their own NOAA record in Minnesota, and wetter than 21. Across the 7,247 U.S. stations with normals, its annual mean of 43.3°F is warmer than 13%.
In the Köppen classification computed from these normals, Glenwood is Dfb: continental, no dry season, warm 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 Glenwood share this climate record?
8 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.
- Starbuck, MN1,419 people · 6 mi SW
- Long Beach, MN339 people · 1 mi SE
- Lowry, MN335 people · 5 mi NW
- Kensington, MN270 people · 15 mi NW
- Villard, MN224 people · 9 mi NE
- Farwell, MN56 people · 11 mi NW
- Sedan, MN46 people · 11 mi SE
- Westport, MN46 people · 14 mi E
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 Glenwood's climate
What is the coldest month in Glenwood?
January, with a normal high of 23°F and a normal low of 2°F. The warmest is July (83°F by day, 58°F at night).
Does it snow in Glenwood?
Yes: 46 inches in a normal year, falling on 24 days with 0.1 inch or more, the most in January (10.6 inches).
What is the rainiest month in Glenwood?
June, with 4.31 in of precipitation in a normal year; the driest is January with 0.48 in.
What plant hardiness zone is Glenwood in?
The USDA's 2023 map puts Glenwood in zone 4b in ZIP code 56334, the nearest ZIP area. By the same method at Glenwood's NOAA station, the coldest night of a typical year reaches −25°F (25 years, 1991-2020): zone 4a.
How late can frost come in Glenwood?
In half of years the last 32°F night comes after May 11; in one year in ten it comes after May 27. Waiting until May 27 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Minnesota climateThe statewide normals and every place in the state
- Alexandria, MN15 miles from this station, 42.5°F a year
- Morris, MN22 miles from this station, 42.2°F a year
- Benson, MN25 miles from this station, 43.7°F a year
- Melrose, MN31 miles from this station, 42.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made