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Weather extremes

How extreme does International Falls's weather get?

The hottest, coldest, wettest and snowiest days International Falls has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 50+ years of daily weather observations (1971–present), from the Intl Falls Intl Ap station 5 km away. Updated through May 2026 — an all-time extreme only changes when a more extreme day actually occurs, so some dates are old. That is normal, not stale data.

The four kinds of extreme

The hottest, coldest, wettest and snowiest single days International Falls has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
99°F Jun 17, 1995

That is about 26°F hotter than a normal June afternoon in International Falls (typical high near 74°F).

The three most extreme on record

1 99°F Jun 17, 1995
2 99°F Jun 18, 1995
3 98°F Jul 29, 1975
❄️ Coldest night
-46°F Jan 21, 2011

About 40°F colder than a normal January night in International Falls (typical low near -6°F).

The three most extreme on record

1 -46°F Jan 21, 2011
2 -46°F Jan 27, 2019
3 -45°F Jan 15, 1972
🌧️ Most rain in one day
3.98 in Jul 31, 2001

More rain in a single day than International Falls usually gets in the whole month of July (typical July total about 4.0 in).

The three most extreme on record

1 3.98 in Jul 31, 2001
2 3.34 in Sep 1, 1973
3 3.22 in Jun 24, 1975
Most snow in one day
14.1 in Jan 10, 1975

About 90% of a typical January's snow in a single day (International Falls averages roughly 16 in across the month).

The three most extreme on record

1 14.1 in Jan 10, 1975
2 13.7 in Dec 14, 2008
3 13.1 in Mar 10, 2009

How hot and cold it gets, month by month

The shaded band is the normal range of daily temperatures for each month. The dots show the most extreme it has ever been — so you can see how far beyond a normal day the records really sit.

-70°-50°-30°-10°10°30°50°70°90°110° all-time high 99°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

International Falls's record heat sits well above even a hot day for the season — June's 99°F is about 26°F beyond a normal hot afternoon. Its record cold is just as far below a normal winter night — the dots mark how rare each extreme really is.

In plain terms

In a normal year, International Falls's warmest days reach the high 70s°F and its coldest nights drop to the low 0s°F. But across the record it has gone as high as 99°F and as low as −46°F. A single day has delivered over 4 inches of rain or close to 14 inches of snow. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
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.

How we build these numbers →