Farmington weather by month
What a typical year looks like in Farmington, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at ROSEMOUNT RESEARCH AND OUTREACH CENTER, 9 km from Farmington; records cover 1943–2026.
The year at a glance
- Precipitation a year
- 34.1 in867 mm
- Snow a year
- Rare
- Last spring freeze
- Apr 30
- First fall freeze
- Oct 5
- Heating degree days
- 8,119
- Cooling degree days
- 551
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −16°−27° (heating, 99%) and 92°33° (cooling, 1%).
Month by month
Farmington in January
Highs average 22°−5° and lows 3°−16°, with 0.96 in24 mm of precipitation in a typical January.
- Record high
- 57°14° (1981)
- Record low
- −38°−39° (1977)
- Heating degree days
- 1620
- Cooling degree days
- 0
Farmington in February
Highs average 27°−3° and lows 7°−14°, with 0.9 in23 mm of precipitation in a typical February.
- Record high
- 65°18° (2024)
- Record low
- −37°−38° (1996)
- Heating degree days
- 1345
- Cooling degree days
- 0
Farmington in March
Highs average 40°4° and lows 20°−6°, with 1.8 in46 mm of precipitation in a typical March.
- Record high
- 81°27° (1968)
- Record low
- −34°−37° (1962)
- Heating degree days
- 1080
- Cooling degree days
- 0
Farmington in April
Highs average 56°13° and lows 34°1°, with 3.1 in79 mm of precipitation in a typical April.
- Record high
- 93°34° (1980)
- Record low
- 4°−16° (1954)
- Heating degree days
- 609
- Cooling degree days
- 2
Farmington in May
Highs average 68°20° and lows 47°8°, with 4.3 in110 mm of precipitation in a typical May.
- Record high
- 100°38° (2018)
- Record low
- 19°−7° (1989)
- Heating degree days
- 272
- Cooling degree days
- 30
Farmington in June
Highs average 77°25° and lows 57°14°, with 4.9 in124 mm of precipitation in a typical June.
- Record high
- 101°38° (2011)
- Record low
- 36°2° (1964)
- Heating degree days
- 54
- Cooling degree days
- 120
Farmington in July
Highs average 81°27° and lows 61°16°, with 4.5 in115 mm of precipitation in a typical July.
- Record high
- 105°41° (1988)
- Record low
- 41°5° (1969)
- Heating degree days
- 12
- Cooling degree days
- 201
Farmington in August
Highs average 79°26° and lows 58°15°, with 4.4 in113 mm of precipitation in a typical August.
- Record high
- 103°39° (1988)
- Record low
- 37°3° (1964)
- Heating degree days
- 26
- Cooling degree days
- 141
Farmington in September
Highs average 72°22° and lows 50°10°, with 3.4 in87 mm of precipitation in a typical September.
- Record high
- 97°36° (1976)
- Record low
- 24°−4° (1967)
- Heating degree days
- 167
- Cooling degree days
- 52
Farmington in OctoberThis month
Highs average 59°15° and lows 37°3°, with 2.9 in73 mm of precipitation in a typical October.
- Record high
- 91°33° (1997)
- Record low
- 9°−13° (2020)
- Heating degree days
- 540
- Cooling degree days
- 5
Farmington in November
Highs average 42°5° and lows 23°−5°, with 1.7 in43 mm of precipitation in a typical November.
- Record high
- 77°25° (1999)
- Record low
- −18°−28° (1964)
- Heating degree days
- 976
- Cooling degree days
- 0
Farmington in December
Highs average 28°−2° and lows 11°−12°, with 1.2 in31 mm of precipitation in a typical December.
- Record high
- 66°19° (1998)
- Record low
- −31°−35° (1990)
- Heating degree days
- 1418
- Cooling degree days
- 0