South Haven weather by month
What a typical year looks like in South Haven, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Kimball 3n, 10 km from South Haven; records cover 2008–2026.
The year at a glance
- Precipitation a year
- 30.8 in782 mm
- Snow a year
- Rare
- Last spring freeze
- May 5
- First fall freeze
- Oct 9
- Heating degree days
- 8,556
- Cooling degree days
- 406
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −18°−28° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
South Haven in January
Highs average 20°−7° and lows 3°−16°, with 0.76 in19 mm of precipitation in a typical January.
- Record high
- 53°12° (2012)
- Record low
- −34°−37° (2022)
- Heating degree days
- 1667
- Cooling degree days
- 0
South Haven in February
Highs average 25°−4° and lows 6°−14°, with 0.86 in22 mm of precipitation in a typical February.
- Record high
- 60°16° (2016)
- Record low
- −30°−34° (2019)
- Heating degree days
- 1386
- Cooling degree days
- 0
South Haven in March
Highs average 37°3° and lows 19°−7°, with 1.7 in44 mm of precipitation in a typical March.
- Record high
- 76°24° (2012)
- Record low
- −18°−28° (2014)
- Heating degree days
- 1149
- Cooling degree days
- 0
South Haven in April
Highs average 53°12° and lows 32°0°, with 2.8 in71 mm of precipitation in a typical April.
- Record high
- 88°31° (2026)
- Record low
- 4°−16° (2018)
- Heating degree days
- 674
- Cooling degree days
- 0
South Haven in May
Highs average 66°19° and lows 45°7°, with 4.1 in103 mm of precipitation in a typical May.
- Record high
- 99°37° (2018)
- Record low
- 28°−2° (2011)
- Heating degree days
- 311
- Cooling degree days
- 18
South Haven in June
Highs average 76°24° and lows 55°13°, with 4.3 in110 mm of precipitation in a typical June.
- Record high
- 98°37° (2011)
- Record low
- 38°3° (2015)
- Heating degree days
- 68
- Cooling degree days
- 80
South Haven in July
Highs average 79°26° and lows 60°16°, with 4.1 in105 mm of precipitation in a typical July.
- Record high
- 94°34° (2022)
- Record low
- 45°7° (2021)
- Heating degree days
- 15
- Cooling degree days
- 158
South Haven in August
Highs average 78°25° and lows 57°14°, with 3.9 in100 mm of precipitation in a typical August.
- Record high
- 95°35° (2023)
- Record low
- 43°6° (2009)
- Heating degree days
- 36
- Cooling degree days
- 110
South Haven in September
Highs average 71°22° and lows 49°9°, with 3.1 in79 mm of precipitation in a typical September.
- Record high
- 93°34° (2012)
- Record low
- 29°−2° (2018)
- Heating degree days
- 193
- Cooling degree days
- 37
South Haven in OctoberThis month
Highs average 56°13° and lows 37°3°, with 2.7 in70 mm of precipitation in a typical October.
- Record high
- 90°32° (2023)
- Record low
- 11°−12° (2020)
- Heating degree days
- 578
- Cooling degree days
- 3
South Haven in November
Highs average 39°4° and lows 23°−5°, with 1.4 in34 mm of precipitation in a typical November.
- Record high
- 77°25° (2020)
- Record low
- −9°−23° (2014)
- Heating degree days
- 1022
- Cooling degree days
- 0
South Haven in December
Highs average 25°−4° and lows 11°−12°, with 1 in25 mm of precipitation in a typical December.
- Record high
- 53°12° (2021)
- Record low
- −27°−33° (2016)
- Heating degree days
- 1457
- Cooling degree days
- 0