Worthington, Minnesota climate: Normal weather by month, frost dates and records
Worthington's normal year runs from 5°F January nights to 82°F July afternoons, with 30.5 inches of precipitation and 45 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 6.9°C, January lows of −15°C, July highs of 28°C, 775 mm of precipitation a year.
- NOAA stationWorthington (2 mi NNE)
- Station IDUSC00219170
- Location43.65°N 95.58°W
- Elevation1,570 ft (479 m)
- From the center1 miles
- Population13,754
On October 23, the normal high in Worthington is 55°F and the normal low 33°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 Worthington.
- Jan 23° 5°
- Feb 27° 10°
- Mar 40° 21°
- Apr 55° 33°
- May 68° 46°
- Jun 78° 57°
- Jul 82° 61°
- Aug 79° 58°
- Sep 73° 49°
- Oct 59° 36°
- Nov 42° 23°
- Dec 28° 12°
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 Worthington each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 5°F. The most precipitation falls in June (5.24 in), the least in January (0.71 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 23°F | 5°F | 14.0°F | 0.71 | 9.8 | 8 | <1 | 31 | 9 h 20 min |
| February | 27°F | 10°F | 18.4°F | 0.82 | 10.9 | 7 | <1 | 27 | 10 h 30 min |
| March | 40°F | 21°F | 30.5°F | 1.46 | 5.7 | 8 | <1 | 26 | 11 h 50 min |
| April | 55°F | 33°F | 43.9°F | 3.07 | 4.4 | 10 | <1 | 14 | 13 h 20 min |
| May | 68°F | 46°F | 56.9°F | 4.09 | 0.2 | 14 | 1 | 2 | 14 h 40 min |
| June | 78°F | 57°F | 67.9°F | 5.24 | 0.0 | 13 | 3 | <1 | 15 h 20 min |
| July | 82°F | 61°F | 71.4°F | 3.54 | 0.0 | 9 | 4 | <1 | 15 h 10 min |
| August | 79°F | 58°F | 68.6°F | 3.85 | 0.0 | 10 | 2 | <1 | 14 h |
| September | 73°F | 49°F | 61.0°F | 3.21 | 0.0 | 9 | 1 | 1 | 12 h 30 min |
| October | 59°F | 36°F | 47.6°F | 2.38 | 1.0 | 9 | <1 | 11 | 11 h 10 min |
| November | 42°F | 23°F | 32.5°F | 1.27 | 4.6 | 6 | <1 | 24 | 9 h 40 min |
| December | 28°F | 12°F | 19.8°F | 0.88 | 8.6 | 7 | <1 | 31 | 9 h |
| Year (annual) | 55°F | 34°F | 44.4°F | 30.52 | 45.2 | 109 | 10 | 167 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −5°C | −15°C | −10.0°C | 18 mm | 25 cm |
| February | −3°C | −12°C | −7.6°C | 21 mm | 28 cm |
| March | 4°C | −6°C | −0.8°C | 37 mm | 14 cm |
| April | 13°C | 0°C | 6.6°C | 78 mm | 11 cm |
| May | 20°C | 8°C | 13.8°C | 104 mm | 1 cm |
| June | 26°C | 14°C | 19.9°C | 133 mm | 0 cm |
| July | 28°C | 16°C | 21.9°C | 90 mm | 0 cm |
| August | 26°C | 14°C | 20.3°C | 98 mm | 0 cm |
| September | 23°C | 10°C | 16.1°C | 82 mm | 0 cm |
| October | 15°C | 2°C | 8.7°C | 60 mm | 3 cm |
| November | 5°C | −5°C | 0.3°C | 32 mm | 12 cm |
| December | −2°C | −11°C | −6.8°C | 22 mm | 22 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00219170; 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 Worthington?
Normal highs sit between 65°F and 85°F in May, June, July, August and September. Of those, July 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 USC00219170.
When is the last frost in Worthington?
In Worthington, the last spring frost (32°F) comes after May 3 in half of years and after May 15 in one year in ten; the first autumn frost comes before October 4 in half of years and before September 21 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 31 year in 10 after May 15; 9 in 10 after April 19
- First autumn frost, half of years before
- October 41 year in 10 before September 21; 9 in 10 before October 18
NOAA puts the median frost-free season at 153 days, and the season without a hard freeze (28°F) at 174 days.
A hard freeze (28°F) comes after April 23 in half of springs and before October 15 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Worthington in zone 5a in ZIP code 56187, the nearest ZIP area. By the map's own method, the average of each year's coldest night over 1991-2020, Worthington's NOAA station is in zone 5a: the coldest night of a typical year reaches −19°F (30 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 USC00219170; 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 Worthington?
In a normal year in Worthington, 10 days a year reach 90°F, 167 nights fall to 32°F or colder and 109 days bring measurable precipitation.
- Days at 90°F or more
- 10a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 167a normal year
- Days that stay below freezing
- 80high of 32°F or less
- Days with 0.01 inch of precipitation
- 109a normal year
- Days with 1 inch of snow or more
- 17a normal year
The highest temperature in this station's record (since 1971) is 104°F, on August 1, 1988; the lowest is −31°F, on January 2, 2010.
The wettest calendar year on that record is 2019, with 43.61 in; the snowiest season is 1983–84, with 78.8 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00219170; records: ACIS (NOAA Regional Climate Centers), station USC00219170. Records use complete months only; a month missing more than three days is left out.
How sunny is Worthington?
Over a year 75% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Worthington, 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 Worthington need?
A normal year in Worthington brings 8,066 heating degree days, 50% more than the median U.S. place (5,373), and 588 cooling degree days, 35% 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 2,542 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,582 | 0 |
| February | 1,303 | 0 |
| March | 1,071 | 0 |
| April | 635 | 2 |
| May | 284 | 33 |
| June | 51 | 138 |
| July | 14 | 212 |
| August | 33 | 144 |
| September | 175 | 54 |
| October | 545 | 5 |
| November | 975 | 0 |
| December | 1,400 | 0 |
| Year (annual) | 8,066 | 588 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00219170. 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 Worthington been warmer than normal lately?
2025 averaged 46.6°F, 2.2°F above the 1991-2020 normal of 44.4°F. 4 of the 5 complete years since 2021 ran warmer than the normal.
| Year | Mean | Against normal | Precip. | Snow |
|---|---|---|---|---|
| 2021 | 46.5°F | +2.1°F | 28.96 | 28.8 |
| 2022 | 43.3°F | −1.1°F | 28.85 | 33.9 |
| 2023 | 45.9°F | +1.5°F | 24.41 | 47.0 |
| 2024 | 47.8°F | +3.4°F | 37.27 | 26.6 |
| 2025 | 46.6°F | +2.2°F | 27.38 | 25.4 |
Over 50 complete years from 1972 to 2025, the station's annual mean temperature rose at a fitted 4.0°F per century (+0.22°C per decade). A fitted rate summarizes the whole record; single years swing well above and below it.
Source: observed years: ACIS, station USC00219170; trend: NOAA GHCN-Monthly v4. A year counts only with all twelve months complete.
How does Worthington's climate compare?
Worthington is warmer than 86 of the other 128 places with their own NOAA record in Minnesota, and wetter than 65. Across the 7,247 U.S. stations with normals, its annual mean of 44.4°F is warmer than 17%.
In the Köppen classification computed from these normals, Worthington 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 Worthington share this climate record?
6 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.
- Fulda, MN1,326 people · 15 mi N
- Brewster, MN500 people · 7 mi NE
- Ocheyedan, IA424 people · 16 mi S
- Wilmont, MN326 people · 15 mi NW
- Dundee, MN79 people · 15 mi N
- Kinbrae, MN10 people · 13 mi NE
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 Worthington's climate
What is the coldest month in Worthington?
January, with a normal high of 23°F and a normal low of 5°F. The warmest is July (82°F by day, 61°F at night).
Does it snow in Worthington?
Yes: 45 inches in a normal year, falling on 27 days with 0.1 inch or more, the most in February (10.9 inches).
What is the rainiest month in Worthington?
June, with 5.24 in of precipitation in a normal year; the driest is January with 0.71 in.
What plant hardiness zone is Worthington in?
The USDA's 2023 map puts Worthington in zone 5a in ZIP code 56187, the nearest ZIP area. By the same method at Worthington's NOAA station, the coldest night of a typical year reaches −19°F (30 years, 1991-2020): zone 5a.
How late can frost come in Worthington?
In half of years the last 32°F night comes after May 3; in one year in ten it comes after May 15. Waiting until May 15 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Minnesota climateThe statewide normals and every place in the state
- Sibley, IA19 miles from this station, 44.5°F a year
- Lake Park, IA19 miles from this station, 46.1°F a year
- Lakefield, MN22 miles from this station, 44.0°F a year
- Milford, IA27 miles from this station, 46.0°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made