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Big Falls weather by month

What a typical year looks like in Big Falls, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at Big Falls, 2 km from Big Falls; records cover 1930–2026.

Today’s Big Falls forecast

The year at a glance

January: typical high 14.8°F, low -4.9°F, precipitation 0.86 in. February: typical high 22.2°F, low -1.3°F, precipitation 0.68 in. March: typical high 35.8°F, low 12.6°F, precipitation 1.16 in. April: typical high 50.4°F, low 26.7°F, precipitation 1.7 in. May: typical high 63.8°F, low 39.2°F, precipitation 3.09 in. June: typical high 72°F, low 49.5°F, precipitation 4.4 in. July: typical high 76.5°F, low 53.5°F, precipitation 4.09 in. August: typical high 74.6°F, low 51.9°F, precipitation 3.36 in. September: typical high 65.4°F, low 43.6°F, precipitation 3.16 in. October: typical high 50.4°F, low 32.3°F, precipitation 2.44 in. November: typical high 33.4°F, low 17.3°F, precipitation 1.33 in. December: typical high 19.3°F, low 2.4°F, precipitation 1.02 in.−60°−51°−40°−40°−20°−29°0°−18°20°−7°40°4°60°16°80°27°100°38°120°49°15°−10°−5°−20°Jan22°−5°−1°−18°Feb36°2°13°−11°Mar50°10°27°−3°Apr64°18°39°4°May72°22°50°10°Jun77°25°54°12°Jul75°24°52°11°Aug65°19°44°6°Sep50°10°32°0°Oct33°1°17°−8°Nov19°−7°2°−16°DecPrecipitation
Bars: typical low to high (official normals, 1991–2020) Record high Record low
Precipitation a year
27.3 in693 mm
Snow a year
Rare
Last spring freeze
May 21
First fall freeze
Sep 20
Heating degree days
10,140
Cooling degree days
175

Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −32°−36° (heating, 99%) and 89°32° (cooling, 1%).

Month by month

Big Falls in January

Highs average 15°−10° and lows −5°−20°, with 0.86 in22 mm of precipitation in a typical January.

Record high
54°12° (1942)
Record low
−52°−47° (1936)
Heating degree days
1861
Cooling degree days
0

Big Falls in February

Highs average 22°−5° and lows −1°−18°, with 0.68 in17 mm of precipitation in a typical February.

Record high
62°17° (1958)
Record low
−53°−47° (1933)
Heating degree days
1527
Cooling degree days
0

Big Falls in March

Highs average 36°2° and lows 13°−11°, with 1.2 in29 mm of precipitation in a typical March.

Record high
83°28° (1946)
Record low
−42°−41° (1962)
Heating degree days
1265
Cooling degree days
0

Big Falls in April

Highs average 50°10° and lows 27°−3°, with 1.7 in43 mm of precipitation in a typical April.

Record high
92°33° (1952)
Record low
−19°−28° (1954)
Heating degree days
794
Cooling degree days
0

Big Falls in May

Highs average 64°18° and lows 39°4°, with 3.1 in78 mm of precipitation in a typical May.

Record high
97°36° (1934)
Record low
12°−11° (1967)
Heating degree days
427
Cooling degree days
8

Big Falls in June

Highs average 72°22° and lows 50°10°, with 4.4 in112 mm of precipitation in a typical June.

Record high
105°41° (1931)
Record low
21°−6° (1964)
Heating degree days
159
Cooling degree days
31

Big Falls in July

Highs average 77°25° and lows 54°12°, with 4.1 in104 mm of precipitation in a typical July.

Record high
106°41° (1936)
Record low
32°0° (1972)
Heating degree days
72
Cooling degree days
72

Big Falls in August

Highs average 75°24° and lows 52°11°, with 3.4 in85 mm of precipitation in a typical August.

Record high
99°37° (1976)
Record low
25°−4° (1934)
Heating degree days
107
Cooling degree days
53

Big Falls in September

Highs average 65°19° and lows 44°6°, with 3.2 in80 mm of precipitation in a typical September.

Record high
98°37° (1931)
Record low
10°−12° (1930)
Heating degree days
326
Cooling degree days
11

Big Falls in OctoberThis month

Highs average 50°10° and lows 32°0°, with 2.4 in62 mm of precipitation in a typical October.

Record high
89°32° (1963)
Record low
−12°−24° (1936)
Heating degree days
734
Cooling degree days
0

Big Falls in November

Highs average 33°1° and lows 17°−8°, with 1.3 in34 mm of precipitation in a typical November.

Record high
75°24° (1975)
Record low
−33°−36° (1985)
Heating degree days
1190
Cooling degree days
0

Big Falls in December

Highs average 19°−7° and lows 2°−16°, with 1 in26 mm of precipitation in a typical December.

Record high
59°15° (1939)
Record low
−51°−46° (1933)
Heating degree days
1678
Cooling degree days
0