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Weather extremes

How extreme does Menomonee Falls's weather get?

The hottest, coldest, wettest and snowiest days Menomonee 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 Germantown Wastewater Utility station 7 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 Menomonee Falls has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
104°F Jul 6, 2012

That is about 23°F hotter than a normal July afternoon in Menomonee Falls (typical high near 81°F).

The three most extreme on record

1 104°F Jul 6, 2012
2 103°F Jul 5, 2012
3 103°F Jul 7, 2012
❄️ Coldest night
-40°F Jan 10, 1982

About 51°F colder than a normal January night in Menomonee Falls (typical low near 11°F).

The three most extreme on record

1 -40°F Jan 10, 1982
2 -40°F Jan 11, 1982
3 -30°F Jan 17, 1982
🌧️ Most rain in one day
8.62 in Aug 10, 2025

More rain in a single day than Menomonee Falls usually gets in the whole month of August (typical August total about 3.8 in).

The three most extreme on record

1 8.62 in Aug 10, 2025recent
2 5.25 in Jun 21, 1997
3 4.14 in Aug 27, 2018
Most snow in one day
15.3 in Feb 7, 2008

About 96% of a typical February's snow in a single day (Menomonee Falls averages roughly 16 in across the month).

The three most extreme on record

1 15.3 in Feb 7, 2008
2 15.0 in Apr 10, 1973
3 14.4 in Mar 21, 2008

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.

-50°-30°-10°10°30°50°70°90°110°130° all-time high 104°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Menomonee Falls's record heat sits well above even a hot day for the season — July's 104°F is about 23°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, Menomonee Falls's warmest days reach the low 80s°F and its coldest nights drop to the low 10s°F. But across the record it has gone as high as 104°F and as low as −40°F. A single day has delivered over 9 inches of rain or close to 15 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 MT Mary College (NOAA GHCN station USC00475474), about 14 km from the city centre.

How we build these numbers →