Farmington, Minnesota climate: Normal weather by month, frost dates and records
Farmington's normal year runs from 8°F January nights to 82°F July afternoons, with 32.3 inches of precipitation and 41 inches of snow a year. (NOAA 1991-2020 normals)
In metric: a yearly mean of 7.6°C, January lows of −13°C, July highs of 28°C, 821 mm of precipitation a year.
- NOAA stationFarmington (3 mi NW)
- Station IDUSC00212737
- Location44.67°N 93.17°W
- Elevation980 ft (299 m)
- Population24,464
On October 23, the normal high in Farmington is 54°F and the normal low 37°F, and the chance of measurable rain or snow is 23%.
Normals describe a typical year at the station, not a forecast. The National Weather Service forecast for Farmington.
- Jan 23° 8°
- Feb 28° 12°
- Mar 41° 24°
- Apr 56° 36°
- May 69° 48°
- Jun 78° 59°
- Jul 82° 63°
- Aug 79° 60°
- Sep 72° 52°
- Oct 58° 39°
- Nov 42° 27°
- Dec 28° 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 Farmington each month?
July is the warmest month, with normal highs of 82°F; January the coldest, with normal lows of 8°F. The most precipitation falls in June (4.89 in), the least in February (0.81 in).
| Month | High | Low | Mean | Precip. | Snow | Wet days | 90°F days | Freezing nights | Daylight |
|---|---|---|---|---|---|---|---|---|---|
| January | 23°F | 8°F | 15.4°F | 1.05 | 10.5 | 6 | <1 | 31 | 9 h 10 min |
| February | 28°F | 12°F | 19.9°F | 0.81 | 6.4 | 5 | <1 | 26 | 10 h 20 min |
| March | 41°F | 24°F | 32.5°F | 1.66 | 8.0 | 6 | <1 | 24 | 11 h 50 min |
| April | 56°F | 36°F | 46.3°F | 2.72 | 1.8 | 8 | <1 | 9 | 13 h 30 min |
| May | 69°F | 48°F | 58.4°F | 3.93 | 0.0 | 11 | 1 | 1 | 14 h 50 min |
| June | 78°F | 59°F | 68.3°F | 4.89 | 0.0 | 11 | 2 | <1 | 15 h 30 min |
| July | 82°F | 63°F | 72.3°F | 4.24 | 0.0 | 10 | 3 | <1 | 15 h 20 min |
| August | 79°F | 60°F | 69.6°F | 4.42 | 0.0 | 9 | 1 | <1 | 14 h 10 min |
| September | 72°F | 52°F | 62.2°F | 3.20 | 0.0 | 8 | <1 | <1 | 12 h 40 min |
| October | 58°F | 39°F | 48.6°F | 2.75 | 0.3 | 7 | <1 | 6 | 11 h |
| November | 42°F | 27°F | 34.0°F | 1.64 | 7.0 | 6 | <1 | 22 | 9 h 40 min |
| December | 28°F | 14°F | 21.1°F | 1.01 | 7.0 | 6 | <1 | 30 | 8 h 50 min |
| Year (annual) | 55°F | 37°F | 45.7°F | 32.32 | 41.0 | 94 | 7 | 150 |
The same normals in °C and millimetres
| Month | High | Low | Mean | Precip. | Snow |
|---|---|---|---|---|---|
| January | −5°C | −13°C | −9.2°C | 27 mm | 27 cm |
| February | −2°C | −11°C | −6.7°C | 21 mm | 16 cm |
| March | 5°C | −4°C | 0.3°C | 42 mm | 20 cm |
| April | 13°C | 2°C | 7.9°C | 69 mm | 5 cm |
| May | 20°C | 9°C | 14.7°C | 100 mm | 0 cm |
| June | 26°C | 15°C | 20.2°C | 124 mm | 0 cm |
| July | 28°C | 17°C | 22.4°C | 108 mm | 0 cm |
| August | 26°C | 16°C | 20.9°C | 112 mm | 0 cm |
| September | 22°C | 11°C | 16.8°C | 81 mm | 0 cm |
| October | 14°C | 4°C | 9.2°C | 70 mm | 1 cm |
| November | 5°C | −3°C | 1.1°C | 42 mm | 18 cm |
| December | −2°C | −10°C | −6.1°C | 26 mm | 18 cm |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00212737; 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 Farmington?
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 USC00212737.
When is the last frost in Farmington?
In Farmington, the last spring frost (32°F) comes after April 27 in half of years and after May 10 in one year in ten; the first autumn frost comes before October 10 in half of years and before September 27 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 271 year in 10 after May 10; 9 in 10 after April 12
- First autumn frost, half of years before
- October 101 year in 10 before September 27; 9 in 10 before October 25
NOAA puts the median frost-free season at 166 days, and the season without a hard freeze (28°F) at 189 days.
A hard freeze (28°F) comes after April 15 in half of springs and before October 22 in half of autumns.
The USDA's 2023 Plant Hardiness Zone Map puts Farmington in zone 5a in ZIP code 55024. By the map's own method, the average of each year's coldest night over 1991-2020, Farmington's NOAA station is in zone 5a: the coldest night of a typical year reaches −18°F (16 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 USC00212737; 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 Farmington?
In a normal year in Farmington, 7 days a year reach 90°F, 150 nights fall to 32°F or colder and 94 days bring measurable precipitation.
- Days at 90°F or more
- 7a normal year
- Days at 100°F or more
- fewer than 1a normal year
- Nights at 32°F or colder
- 150a normal year
- Days that stay below freezing
- 73high of 32°F or less
- Days with 0.01 inch of precipitation
- 94a normal year
- Days with 1 inch of snow or more
- 13a normal year
The highest temperature in this station's record (since 1892) is 110°F, on July 14, 1936; the lowest is −40°F, on January 23, 1935.
The wettest calendar year on that record is 2002, with 41.11 in; the snowiest season is 1983–84, with 90.0 inches.
Source: NOAA NCEI 1991-2020 annual normals, station USC00212737; records: ACIS (NOAA Regional Climate Centers), station USC00212737. Records use complete months only; a month missing more than three days is left out.
How sunny is Farmington?
Over a year 73% of the sunlight that would reach the ground under clear skies gets through the clouds in the area around Farmington, 3.9 kWh per square metre a day. July is the sunniest month (82%) and December the cloudiest (62%).
| Month | Share of clear-sky sunshine | Sunshine, kWh/m² a day |
|---|---|---|
| January | 72% | 1.8 |
| February | 78% | 3.0 |
| March | 69% | 3.7 |
| April | 68% | 4.7 |
| May | 69% | 5.4 |
| June | 74% | 6.0 |
| July | 82% | 6.4 |
| August | 79% | 5.4 |
| September | 76% | 4.2 |
| October | 69% | 2.7 |
| November | 67% | 1.8 |
| December | 62% | 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 much heating and cooling does Farmington need?
A normal year in Farmington brings 7,626 heating degree days, 42% more than the median U.S. place (5,373), and 635 cooling degree days, 30% 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 2,692 growing degree days a year above 50°F.
| Month | Heating | Cooling |
|---|---|---|
| January | 1,539 | 0 |
| February | 1,261 | 0 |
| March | 1,006 | 0 |
| April | 566 | 3 |
| May | 239 | 34 |
| June | 42 | 141 |
| July | 6 | 233 |
| August | 18 | 159 |
| September | 146 | 60 |
| October | 513 | 6 |
| November | 929 | 0 |
| December | 1,362 | 0 |
| Year (annual) | 7,626 | 635 |
Source: NOAA NCEI 1991-2020 monthly normals, station USC00212737. 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.
How does Farmington's climate compare?
Farmington is warmer than 115 of the other 128 places with their own NOAA record in Minnesota, and wetter than 84. Across the 7,247 U.S. stations with normals, its annual mean of 45.7°F is warmer than 22%.
In the Köppen classification computed from these normals, Farmington 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 Farmington 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.
- Lakeville, MNalso near: Rosemount (8 mi, 44.1°F a year); Minneapolis (14 mi, 46.9°F a year)77,971 people · 4 mi W
- Burnsville, MNalso near: Minneapolis (9 mi, 46.9°F a year); Rosemount (10 mi, 44.1°F a year)64,864 people · 8 mi NW
- Credit River, MN5,589 people · 9 mi W
- Elko New Market, MN5,193 people · 11 mi SW
- Randolph, MN458 people · 12 mi SE
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 Farmington's climate
What is the coldest month in Farmington?
January, with a normal high of 23°F and a normal low of 8°F. The warmest is July (82°F by day, 63°F at night).
Does it snow in Farmington?
Yes: 41 inches in a normal year, falling on 26 days with 0.1 inch or more, the most in January (10.5 inches).
What is the rainiest month in Farmington?
June, with 4.89 in of precipitation in a normal year; the driest is February with 0.81 in.
What plant hardiness zone is Farmington in?
The USDA's 2023 map puts Farmington in zone 5a in ZIP code 55024. By the same method at Farmington's NOAA station, the coldest night of a typical year reaches −18°F (16 years, 1991-2020): zone 5a.
How late can frost come in Farmington?
In half of years the last 32°F night comes after April 27; in one year in ten it comes after May 10. Waiting until May 10 leaves about a one-in-ten chance of a later frost.
Nearby and next
- Minnesota climateThe statewide normals and every place in the state
- Rosemount, MN5 miles from this station, 44.1°F a year
- Minneapolis, MN15 miles from this station, 46.9°F a year
- Hastings, MN16 miles from this station, 46.0°F a year
- Eden Prairie, MN19 miles from this station, 46.7°F a year
- Compare two placesMonth by month, side by side
Download these normals (CSV) · JSON · How these figures are made