Swanville weather by month
What a typical year looks like in Swanville, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Long Prairie, 20 km from Swanville; records cover 1893–2026.
The year at a glance
- Precipitation a year
- 31 in788 mm
- Snow a year
- 54 in137 cm
- Last spring freeze
- May 10
- First fall freeze
- Sep 29
- Heating degree days
- 9,334
- Cooling degree days
- 313
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −22°−30° (heating, 99%) and 90°32° (cooling, 1%).
Month by month
Swanville in January
Highs average 18°−8° and lows −1°−18°, with 0.98 in25 mm of precipitation and 10 in25 cm of snow in a typical January.
- Record high
- 57°14° (1942)
- Record low
- −45°−43° (1912)
- Heating degree days
- 1751
- Cooling degree days
- 0
Swanville in February
Highs average 23°−5° and lows 3°−16°, with 0.92 in23 mm of precipitation and 9 in23 cm of snow in a typical February.
- Record high
- 59°15° (1981)
- Record low
- −44°−42° (1996)
- Heating degree days
- 1462
- Cooling degree days
- 0
Swanville in March
Highs average 36°2° and lows 15°−9°, with 1.5 in39 mm of precipitation and 9 in22 cm of snow in a typical March.
- Record high
- 83°28° (1910)
- Record low
- −37°−38° (1948)
- Heating degree days
- 1221
- Cooling degree days
- 0
Swanville in April
Highs average 51°11° and lows 28°−2°, with 2.7 in69 mm of precipitation and 6 in15 cm of snow in a typical April.
- Record high
- 95°35° (1980)
- Record low
- −7°−22° (1975)
- Heating degree days
- 758
- Cooling degree days
- 1
Swanville in May
Highs average 65°18° and lows 41°5°, with 3.5 in88 mm of precipitation and 0.2 in0.5 cm of snow in a typical May.
- Record high
- 96°36° (1911)
- Record low
- 14°−10° (1907)
- Heating degree days
- 386
- Cooling degree days
- 13
Swanville in June
Highs average 75°24° and lows 53°12°, with 4.6 in116 mm of precipitation in a typical June.
- Record high
- 101°38° (1937)
- Record low
- 29°−2° (1897)
- Heating degree days
- 102
- Cooling degree days
- 63
Swanville in July
Highs average 79°26° and lows 57°14°, with 4.6 in118 mm of precipitation in a typical July.
- Record high
- 105°41° (1917)
- Record low
- 35°2° (1967)
- Heating degree days
- 35
- Cooling degree days
- 121
Swanville in August
Highs average 77°25° and lows 55°13°, with 3.4 in86 mm of precipitation in a typical August.
- Record high
- 104°40° (1947)
- Record low
- 28°−2° (1982)
- Heating degree days
- 63
- Cooling degree days
- 89
Swanville in September
Highs average 68°20° and lows 46°8°, with 3.3 in84 mm of precipitation in a typical September.
- Record high
- 100°38° (1912)
- Record low
- 16°−9° (1893)
- Heating degree days
- 256
- Cooling degree days
- 25
Swanville in OctoberThis month
Highs average 54°12° and lows 34°1°, with 2.9 in74 mm of precipitation and 1.8 in4.6 cm of snow in a typical October.
- Record high
- 90°32° (1905)
- Record low
- 3°−16° (1951)
- Heating degree days
- 662
- Cooling degree days
- 1
Swanville in November
Highs average 37°3° and lows 20°−7°, with 1.5 in37 mm of precipitation and 7 in18 cm of snow in a typical November.
- Record high
- 76°24° (1999)
- Record low
- −32°−36° (1905)
- Heating degree days
- 1094
- Cooling degree days
- 0
Swanville in December
Highs average 23°−5° and lows 7°−14°, with 1.1 in29 mm of precipitation and 12 in29 cm of snow in a typical December.
- Record high
- 71°22° (1941)
- Record low
- −39° (1983)
- Heating degree days
- 1544
- Cooling degree days
- 0