Boy River weather by month
What a typical year looks like in Boy River, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Leech Lake, 12 km from Boy River; records cover 1897–2026.
The year at a glance
- Precipitation a year
- 26.6 in675 mm
- Snow a year
- 48 in122 cm
- Last spring freeze
- May 12
- First fall freeze
- Sep 29
- Heating degree days
- 9,188
- Cooling degree days
- 377
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −26°−32° (heating, 99%) and 89°32° (cooling, 1%).
Month by month
Boy River in January
Highs average 18°−8° and lows −2°−19°, with 0.68 in17 mm of precipitation and 9 in24 cm of snow in a typical January.
- Record high
- 53°12° (1900)
- Record low
- −52°−47° (1899)
- Heating degree days
- 1778
- Cooling degree days
- 0
Boy River in February
Highs average 24°−5° and lows 1°−17°, with 0.68 in17 mm of precipitation and 7 in18 cm of snow in a typical February.
- Record high
- 61°16° (1958)
- Record low
- −59°−51° (1899)
- Heating degree days
- 1470
- Cooling degree days
- 0
Boy River in March
Highs average 37°3° and lows 15°−9°, with 1.1 in28 mm of precipitation and 7 in17 cm of snow in a typical March.
- Record high
- 81°27° (1946)
- Record low
- −48°−44° (1897)
- Heating degree days
- 1201
- Cooling degree days
- 0
Boy River in April
Highs average 52°11° and lows 29°−1°, with 1.9 in47 mm of precipitation and 6 in15 cm of snow in a typical April.
- Record high
- 94°34° (1980)
- Record low
- −13°−25° (1896)
- Heating degree days
- 732
- Cooling degree days
- 0
Boy River in May
Highs average 66°19° and lows 43°6°, with 2.9 in74 mm of precipitation in a typical May.
- Record high
- 102°39° (1934)
- Record low
- 12°−11° (1907)
- Heating degree days
- 344
- Cooling degree days
- 15
Boy River in June
Highs average 75°24° and lows 54°12°, with 3.8 in97 mm of precipitation in a typical June.
- Record high
- 98°37° (1931)
- Record low
- 24°−4° (1897)
- Heating degree days
- 90
- Cooling degree days
- 74
Boy River in July
Highs average 80°27° and lows 58°15°, with 4.4 in111 mm of precipitation in a typical July.
- Record high
- 104°40° (1936)
- Record low
- 35°2° (1891)
- Heating degree days
- 27
- Cooling degree days
- 152
Boy River in August
Highs average 78°26° and lows 56°13°, with 3.2 in81 mm of precipitation in a typical August.
- Record high
- 100°38° (1976)
- Record low
- 27°−3° (2004)
- Heating degree days
- 46
- Cooling degree days
- 109
Boy River in September
Highs average 69°21° and lows 47°8°, with 3.1 in80 mm of precipitation in a typical September.
- Record high
- 101°38° (1931)
- Record low
- 16°−9° (1934)
- Heating degree days
- 230
- Cooling degree days
- 26
Boy River in OctoberThis month
Highs average 54°12° and lows 35°2°, with 2.5 in64 mm of precipitation and 1.1 in2.8 cm of snow in a typical October.
- Record high
- 90°32° (2015)
- Record low
- 1°−17° (1936)
- Heating degree days
- 635
- Cooling degree days
- 1
Boy River in November
Highs average 36°2° and lows 21°−6°, with 1.2 in31 mm of precipitation and 7 in17 cm of snow in a typical November.
- Record high
- 72°22° (1903)
- Record low
- −37°−38° (1896)
- Heating degree days
- 1084
- Cooling degree days
- 0
Boy River in December
Highs average 23°−5° and lows 7°−14°, with 1.1 in28 mm of precipitation and 11 in28 cm of snow in a typical December.
- Record high
- 58°14° (1962)
- Record low
- −51°−46° (1898)
- Heating degree days
- 1551
- Cooling degree days
- 0