Theilman (1 mi SSW), Minnesota climate: Climate normals at a NOAA weather station
Theilman (1 mi SSW)'s normal year runs from 4°F January nights to 83°F July afternoons, with 35.5 inches of precipitation and 48 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.2°C, January lows of −15°C, July highs of 28°C, 901 mm of precipitation a year.
- NOAA stationTheilman (1 mi SSW)
- Station IDUSC00218227
- Location44.28°N 92.19°W
- Elevation753 ft (230 m)
On October 22, the normal high in Theilman (1 mi SSW) is 57°F and the normal low 34°F, and the chance of measurable rain or snow is 22%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Theilman (1 mi SSW).
- Jan 24° 4°
- Feb 30° 8°
- Mar 42° 21°
- Apr 57° 33°
- May 69° 45°
- Jun 79° 57°
- Jul 83° 60°
- Aug 81° 58°
- Sep 74° 49°
- Oct 60° 36°
- Nov 43° 25°
- Dec 30° 13°
Each month: normal high (large) and low, °F. Fill: the month's normal mean, colder blue to hotter red.
What is the weather like at Theilman (1 mi SSW) each month?
July is the warmest month, with normal highs of 83°F; January the coldest, with normal lows of 4°F. The most precipitation falls in June (5.30 in), the least in January (1.00 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 24°F | 4°F | 14.3°F | 1.00 | 9.9 | 6 | <1 | 31 | 9 h 10 min |
| February | 30°F | 8°F | 18.7°F | 1.11 | 12.1 | 6 | <1 | 27 | 10 h 30 min |
| March | 42°F | 21°F | 31.4°F | 1.99 | 9.0 | 7 | <1 | 26 | 11 h 50 min |
| April | 57°F | 33°F | 45.1°F | 3.39 | 2.7 | 9 | <1 | 15 | 13 h 20 min |
| May | 69°F | 45°F | 57.2°F | 4.38 | 0.0 | 11 | 1 | 3 | 14 h 40 min |
| June | 79°F | 57°F | 67.7°F | 5.30 | 0.0 | 11 | 3 | <1 | 15 h 30 min |
| July | 83°F | 60°F | 71.7°F | 4.19 | 0.0 | 8 | 5 | <1 | 15 h 10 min |
| August | 81°F | 58°F | 69.5°F | 4.68 | 0.0 | 8 | 3 | <1 | 14 h 10 min |
| September | 74°F | 49°F | 61.4°F | 3.75 | 0.0 | 8 | 1 | 1 | 12 h 40 min |
| October | 60°F | 36°F | 47.9°F | 2.46 | 0.6 | 7 | <1 | 13 | 11 h |
| November | 43°F | 25°F | 34.0°F | 1.97 | 2.3 | 6 | <1 | 25 | 9 h 40 min |
| December | 30°F | 13°F | 21.4°F | 1.25 | 11.7 | 7 | <1 | 30 | 8 h 50 min |
| Year (annual) | 56°F | 34°F | 45.0°F | 35.47 | 48.3 | 92 | 12 | 170 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −4°C | −15°C | −9.8°C | 25 mm | 25 cm |
| February | −1°C | −14°C | −7.4°C | 28 mm | 31 cm |
| March | 5°C | −6°C | −0.3°C | 51 mm | 23 cm |
| April | 14°C | 1°C | 7.3°C | 86 mm | 7 cm |
| May | 21°C | 7°C | 14.0°C | 111 mm | 0 cm |
| June | 26°C | 14°C | 19.8°C | 135 mm | 0 cm |
| July | 28°C | 16°C | 22.1°C | 106 mm | 0 cm |
| August | 27°C | 14°C | 20.8°C | 119 mm | 0 cm |
| September | 23°C | 10°C | 16.3°C | 95 mm | 0 cm |
| October | 15°C | 2°C | 8.8°C | 62 mm | 2 cm |
| November | 6°C | −4°C | 1.1°C | 50 mm | 6 cm |
| December | −1°C | −11°C | −5.9°C | 32 mm | 30 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00218227; 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.
Which months are mildest at Theilman (1 mi SSW)?
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 USC00218227.
When is the last frost at Theilman (1 mi SSW)?
In Theilman (1 mi SSW), the last spring frost (32°F) comes after May 7 in half of years and after May 22 in one year in ten; the first autumn frost comes before October 2 in half of years and before September 20 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 71 year in 10 after May 22; 9 in 10 after April 24
- First autumn frost, half of years before
- October 21 year in 10 before September 20; 9 in 10 before October 15
NOAA puts the median frost-free season at 148 days, and the season without a hard freeze (28°F) at 167 days.
A hard freeze (28°F) comes after April 28 in half of springs and before October 12 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Theilman (1 mi SSW) in zone 4b in ZIP code 55957, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, the station is in zone 4a: the coldest night of a typical year reaches −27°F (21 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 USC00218227; 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 at Theilman (1 mi SSW)?
In a normal year in Theilman (1 mi SSW), 12 days a year reach 90°F, 170 nights fall to 32°F or colder and 92 days bring measurable precipitation.
- Days at 90°F or more
- 12a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 170a normal year
- Days that stay below freezing
- 68high of 32°F or less
- Days with 0.01 inch of precipitation
- 92a normal year
- Days with 1 inch of snow or more
- 14a normal year
The highest temperature in this station's record (since 1962) is 104°F, on August 1, 1988; the lowest is −44°F, on January 18, 1967.
The wettest calendar year on that record is 2016, with 48.33 in; the snowiest season is 2018–19, with 81.4 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00218227; records: ACIS (NOAA Regional Climate Centers), station USC00218227. Records use complete months only; a month missing more than three days is left out.
How sunny is it at Theilman (1 mi SSW)?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds at Theilman (1 mi SSW), 3.9 kWh per square metre a day. July is the sunniest month (81%) and December the cloudiest (61%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 71% | 1.8 |
| February | 77% | 2.9 |
| March | 72% | 3.8 |
| April | 68% | 4.7 |
| May | 69% | 5.4 |
| June | 74% | 6.0 |
| July | 81% | 6.3 |
| August | 78% | 5.3 |
| September | 75% | 4.1 |
| October | 68% | 2.7 |
| November | 65% | 1.7 |
| December | 61% | 1.3 |
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 many heating and cooling degree days does Theilman (1 mi SSW) record?
A normal year at Theilman (1 mi SSW) brings 7,860 heating degree days, 46% more than the median U.S. place (5,373), and 614 cooling degree days, 32% 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 2,582 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,572 | 0 |
| February | 1,298 | 0 |
| March | 1,042 | 1 |
| April | 601 | 2 |
| May | 275 | 32 |
| June | 52 | 135 |
| July | 11 | 219 |
| August | 23 | 163 |
| September | 168 | 59 |
| October | 535 | 5 |
| November | 932 | 0 |
| December | 1,352 | 0 |
| Year (annual) | 7,860 | 614 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00218227. 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.
Have recent years at Theilman (1 mi SSW) been warmer than normal?
2022 averaged 44.1°F, 0.9°F below the 1991-2020 normal of 45.0°F. 1 of the 2 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 47.0°F | +2.0°F | 34.82 | 41.5 |
| 2022 | 44.1°F | −0.9°F | 27.60 | 41.1 |
Source: observed years: ACIS, station USC00218227. A year counts only with all twelve months complete.
How does Theilman (1 mi SSW)'s climate compare?
Theilman (1 mi SSW) is warmer than 104 of the 129 places with their own NOAA record in Minnesota, and wetter than 111. Across the 7,247 U.S. stations with normals, its annual mean of 45.0°F is warmer than 19%.
In the Köppen classification computed from these normals, Theilman (1 mi SSW) 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 Theilman (1 mi SSW) share this climate record?
7 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.
- Elgin, MN1,139 people · 11 mi S
- Pepin, WI749 people · 11 mi N
- Nelson, WI319 people · 14 mi NE
- Zumbro Falls, MN154 people · 11 mi W
- Millville, MN144 people · 6 mi SW
- Hammond, MN129 people · 10 mi SW
- Stockholm, WI84 people · 15 mi N
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 Theilman (1 mi SSW)'s climate
What is the coldest month at Theilman (1 mi SSW)?
January, with a normal high of 24°F and a normal low of 4°F. The warmest is July (83°F by day, 60°F at night).
Does it snow at Theilman (1 mi SSW)?
Yes: 48 inches in a normal year, falling on 21 days with 0.1 inch or more, the most in February (12.1 inches).
What is the rainiest month at Theilman (1 mi SSW)?
June, with 5.30 in of precipitation in a normal year; the driest is January with 1.00 in.
What plant hardiness zone is Theilman (1 mi SSW) in?
The USDA's 2023 map puts Theilman (1 mi SSW) in zone 4b in ZIP code 55957, the nearest ZIP area. By the same method at the station, the coldest night of a typical year reaches −27°F (21 years, 1991-2020): zone 4a.
How late can frost come at Theilman (1 mi SSW)?
In half of years the last 32°F night comes after May 7; in one year in ten it comes after May 22. Waiting until May 22 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Minnesota climateThe statewide normals and every place in the state
- Alma, WI14 miles from this station, 45.8°F a year
- Minnesota City, MN21 miles from this station, 46.3°F a year
- Zumbrota, MN24 miles from this station, 44.0°F a year
- Durand, WI25 miles from this station, 45.1°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made