International Falls weather by month
What a typical year looks like in International Falls, Minnesota: average highs and lows, rain and snow, and the warmest and coldest days on record. Normals are the 1991–2020 averages at International Falls International Airport, 3 km from International Falls; records cover 1897–2026.
The year at a glance
- Precipitation a year
- 25.4 in644 mm
- Snow a year
- 73 in185 cm
- Last spring freeze
- May 24
- First fall freeze
- Sep 15
- Heating degree days
- 10,180
- Cooling degree days
- 174
Freeze dates are medians (half of years earlier, half later). Degree days use a 65°F base; HVAC design temperatures here are −31°−35° (heating, 99%) and 88°31° (cooling, 1%).
Month by month
International Falls in January
Highs average 16°−9° and lows −6°−21°, with 0.79 in20 mm of precipitation and 16 in40 cm of snow in a typical January.
- Record high
- 53°12° (2024)
- Record low
- −55°−48° (1909)
- Heating degree days
- 1861
- Cooling degree days
- 0
International Falls in February
Highs average 22°−6° and lows −3°−19°, with 0.69 in18 mm of precipitation and 13 in32 cm of snow in a typical February.
- Record high
- 58°14° (2000)
- Record low
- −48°−44° (1909)
- Heating degree days
- 1552
- Cooling degree days
- 0
International Falls in March
Highs average 35°2° and lows 12°−11°, with 1 in26 mm of precipitation and 8 in20 cm of snow in a typical March.
- Record high
- 79°26° (2012)
- Record low
- −38°−39° (1962)
- Heating degree days
- 1284
- Cooling degree days
- 0
International Falls in April
Highs average 50°10° and lows 26°−3°, with 1.6 in42 mm of precipitation and 7 in18 cm of snow in a typical April.
- Record high
- 93°34° (1952)
- Record low
- −14°−26° (1954)
- Heating degree days
- 807
- Cooling degree days
- 0
International Falls in May
Highs average 64°18° and lows 38°3°, with 3.1 in78 mm of precipitation and 0.2 in0.5 cm of snow in a typical May.
- Record high
- 96°36° (2025)
- Record low
- 8°−13° (1926)
- Heating degree days
- 437
- Cooling degree days
- 8
International Falls in June
Highs average 74°23° and lows 48°9°, with 3.8 in96 mm of precipitation in a typical June.
- Record high
- 101°38° (1912)
- Record low
- 23°−5° (1964)
- Heating degree days
- 160
- Cooling degree days
- 35
International Falls in July
Highs average 78°25° and lows 52°11°, with 4 in101 mm of precipitation in a typical July.
- Record high
- 103°39° (1923)
- Record low
- 32°0° (1911)
- Heating degree days
- 75
- Cooling degree days
- 70
International Falls in August
Highs average 76°24° and lows 50°10°, with 2.8 in72 mm of precipitation in a typical August.
- Record high
- 96°36° (1920)
- Record low
- 27°−3° (1906)
- Heating degree days
- 115
- Cooling degree days
- 49
International Falls in September
Highs average 66°19° and lows 42°6°, with 3 in76 mm of precipitation and 0.1 in0.3 cm of snow in a typical September.
- Record high
- 96°36° (1906)
- Record low
- 19°−7° (2011)
- Heating degree days
- 336
- Cooling degree days
- 12
International Falls in OctoberThis month
Highs average 51°11° and lows 31°0°, with 2.2 in56 mm of precipitation and 1.6 in4.1 cm of snow in a typical October.
- Record high
- 88°31° (1963)
- Record low
- 2°−17° (1988)
- Heating degree days
- 740
- Cooling degree days
- 0
International Falls in November
Highs average 34°1° and lows 18°−8°, with 1.4 in35 mm of precipitation and 12 in31 cm of snow in a typical November.
- Record high
- 74°23° (2020)
- Record low
- −32°−36° (1985)
- Heating degree days
- 1162
- Cooling degree days
- 0
International Falls in December
Highs average 21°−6° and lows 3°−16°, with 0.99 in25 mm of precipitation and 16 in40 cm of snow in a typical December.
- Record high
- 56°13° (1962)
- Record low
- −41° (1955)
- Heating degree days
- 1651
- Cooling degree days
- 0