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International Falls, Minnesota climate

Dfb Warm-summer humid continental

International Falls has a strongly seasonal cold-temperate climate (Warm-summer humid continental, Köppen Dfb). The hottest month is July with an average daily high near 25°C, while the coldest is January averaging around −21°C at night. Precipitation totals about 644 mm a year and is strongly seasonal — July alone averages 101 mm while February barely receives 18 mm. Snowfall is heavy (185 cm of snow per year on average).

☀️ Summers

Mild

Highs near 25°C in July.

About 2 days a year above 32 °C

❄️ Winters

Bitterly cold

Lows near −21°C in January.

About 200 freezing nights a year

🌧️ Rain & snow

Moderate rainfall

About 644 mm of rain a year, plus 185 cm of snow.

Snow falls through the winter months

⛅ Sky & trend

Often cloudy

Cloudy skies much of the year.

+0.0 °C vs 50 years ago

Temperature & precipitation

Daily high–low temperature range with the monthly average, plus monthly precipitation split into rain and snow · 1991–2020 normals · hover a month for the exact figures

Hours of sunshine per day

Estimated sunny hours each month — daylight length × clear-sky fraction · 1991–2020 monthly cloud cover (NASA POWER)

International Falls climate normals (1991–2020)

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	−9	−6	2	10	18	23	25	24	19	11	1	−6
Avg temp (°C)	−15	−13	−5	3	11	16	18	17	12	5	−3	−11
Avg low (°C)	−21	−19	−11	−3	3	9	11	10	6	−1	−8	−16
Precipitation (mm)	20	18	26	42	78	96	101	72	76	56	35	25
Snowfall (cm)	40	32	20	18	1	—	—	—	0	4	31	40

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Avg high (°C)	−9	−6	2	10	18	23
Avg temp (°C)	−15	−13	−5	3	11	16
Avg low (°C)	−21	−19	−11	−3	3	9
Precipitation (mm)	20	18	26	42	78	96
Snowfall (cm)	40	32	20	18	1	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Avg high (°C)	25	24	19	11	1	−6
Avg temp (°C)	18	17	12	5	−3	−11
Avg low (°C)	11	10	6	−1	−8	−16
Precipitation (mm)	101	72	76	56	35	25
Snowfall (cm)	—	—	0	4	31	40

How often — frequency of weather events

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	10	9	8	9	13	14	13	11	12	13	10	11
Days with high ≥ 32°C (days)	—	—	—	—	0.0	0.5	0.9	0.5	0.1	—	—	—
Days with low ≤ 0°C (days)	31	28	29	23	9	0.6	—	0.1	5	17	27	31
Days with snowfall ≥ 2.5 cm (days)	5	4	3	2	0.1	—	—	—	0.1	0.7	4	5

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Days with measurable rain (days)	10	9	8	9	13	14
Days with high ≥ 32°C (days)	—	—	—	—	0.0	0.5
Days with low ≤ 0°C (days)	31	28	29	23	9	0.6
Days with snowfall ≥ 2.5 cm (days)	5	4	3	2	0.1	—

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Days with measurable rain (days)	13	11	12	13	10	11
Days with high ≥ 32°C (days)	0.9	0.5	0.1	—	—	—
Days with low ≤ 0°C (days)	—	0.1	5	17	27	31
Days with snowfall ≥ 2.5 cm (days)	—	—	0.1	0.7	4	5

Sky & atmosphere

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	67	66	65	65	67	67	58	58	64	72	74	71
Relative humidity (%)	97	95	84	71	70	71	70	68	72	78	85	94
Wind speed (m/s)	1.1	1.3	1.3	1.2	1.1	1.0	0.9	0.9	1.0	1.0	0.9	1.0

Jan – Jun	Jan	Feb	Mar	Apr	May	Jun
Cloud cover (%)	67	66	65	65	67	67
Relative humidity (%)	97	95	84	71	70	71
Wind speed (m/s)	1.1	1.3	1.3	1.2	1.1	1.0

Jul – Dec	Jul	Aug	Sep	Oct	Nov	Dec
Cloud cover (%)	58	58	64	72	74	71
Relative humidity (%)	70	68	72	78	85	94
Wind speed (m/s)	0.9	0.9	1.0	1.0	0.9	1.0

Methodology & sources

Temperature & precipitation — the official 1991–2020 climate normals from NOAA's U.S. Climate Normals, measured at Intl Falls Intl AP (NOAA GHCN station USW00014918), about 5 km from the city centre.

Cloud, humidity, wind & sunshine — modelled estimates from NASA POWER, NASA's satellite-and-reanalysis climatology. This is the standard global source for atmospheric variables, which are not measured at most weather stations.

How we build these numbers →