Fish Lake weather by month
What a typical year looks like in Fish Lake, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Windom, 7 km from Fish Lake; records cover 1905–2026.
The year at a glance
- Precipitation a year
- 31.7 in806 mm
- Snow a year
- 44 in110 cm
- Last spring freeze
- May 3
- First fall freeze
- Oct 3
- Heating degree days
- 7,403
- Cooling degree days
- 812
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −15°−26° (heating, 99%) and 94°34° (cooling, 1%).
Month by month
Fish Lake in January
Highs average 25°−4° and lows 8°−13°, with 0.89 in23 mm of precipitation and 8 in21 cm of snow in a typical January.
- Record high
- 65°18° (1981)
- Record low
- −36°−38° (1988)
- Heating degree days
- 1499
- Cooling degree days
- 0
Fish Lake in February
Highs average 30°−1° and lows 12°−11°, with 0.83 in21 mm of precipitation and 9 in23 cm of snow in a typical February.
- Record high
- 67°19° (2024)
- Record low
- −32°−36° (1917)
- Heating degree days
- 1232
- Cooling degree days
- 0
Fish Lake in March
Highs average 43°6° and lows 24°−4°, with 1.8 in45 mm of precipitation and 7 in19 cm of snow in a typical March.
- Record high
- 85°29° (2025)
- Record low
- −30°−34° (1948)
- Heating degree days
- 982
- Cooling degree days
- 0
Fish Lake in April
Highs average 58°14° and lows 36°2°, with 3.2 in82 mm of precipitation and 4 in11 cm of snow in a typical April.
- Record high
- 94°34° (1910)
- Record low
- 6°−14° (1975)
- Heating degree days
- 550
- Cooling degree days
- 4
Fish Lake in May
Highs average 71°21° and lows 48°9°, with 4.5 in114 mm of precipitation and 0.1 in0.3 cm of snow in a typical May.
- Record high
- 100°38° (2018)
- Record low
- 20°−7° (1967)
- Heating degree days
- 223
- Cooling degree days
- 49
Fish Lake in June
Highs average 81°27° and lows 59°15°, with 4.7 in120 mm of precipitation in a typical June.
- Record high
- 103°39° (1988)
- Record low
- 30°−1° (1915)
- Heating degree days
- 35
- Cooling degree days
- 183
Fish Lake in July
Highs average 84°29° and lows 63°17°, with 3.9 in100 mm of precipitation in a typical July.
- Record high
- 104°40° (1941)
- Record low
- 41°5° (1917)
- Heating degree days
- 7
- Cooling degree days
- 281
Fish Lake in August
Highs average 81°27° and lows 61°16°, with 3.7 in94 mm of precipitation in a typical August.
- Record high
- 105°41° (1988)
- Record low
- 30°−1° (1908)
- Heating degree days
- 15
- Cooling degree days
- 202
Fish Lake in September
Highs average 75°24° and lows 52°11°, with 3.2 in81 mm of precipitation in a typical September.
- Record high
- 100°38° (1976)
- Record low
- 18°−8° (1913)
- Heating degree days
- 129
- Cooling degree days
- 84
Fish Lake in OctoberThis month
Highs average 61°16° and lows 39°4°, with 2.5 in62 mm of precipitation and 0.9 in2.3 cm of snow in a typical October.
- Record high
- 93°34° (2023)
- Record low
- 6°−14° (1913)
- Heating degree days
- 484
- Cooling degree days
- 9
Fish Lake in November
Highs average 44°6° and lows 25°−4°, with 1.5 in38 mm of precipitation and 5 in13 cm of snow in a typical November.
- Record high
- 81°27° (2020)
- Record low
- −17°−27° (1952)
- Heating degree days
- 917
- Cooling degree days
- 0
Fish Lake in December
Highs average 30°−1° and lows 14°−10°, with 1.1 in27 mm of precipitation and 8 in21 cm of snow in a typical December.
- Record high
- 67°19° (1939)
- Record low
- −30°−34° (1914)
- Heating degree days
- 1330
- Cooling degree days
- 0