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Weather extremes

How extreme does Brookfield's weather get?

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

Based on 19 years of daily weather observations (2007–present), from the Brookfield Wwtp station 6 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 Brookfield has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
102°F Jul 6, 2012

That is about 21°F hotter than a normal July afternoon in Brookfield (typical high near 81°F).

The three most extreme on record

1 102°F Jul 6, 2012
2 101°F Jul 5, 2012
3 101°F Jul 7, 2012
❄️ Coldest night
-33°F Jan 30, 2019

About 45°F colder than a normal January night in Brookfield (typical low near 12°F).

The three most extreme on record

1 -33°F Jan 30, 2019
2 -30°F Jan 31, 2019
3 -26°F Feb 1, 2019
🌧️ Most rain in one day
6.55 in Aug 10, 2025

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

The three most extreme on record

1 6.55 in Aug 10, 2025recent
2 5.81 in Sep 12, 2022
3 5.66 in Jun 8, 2008
Most snow in one day
11.0 in Dec 19, 2008

The three most extreme on record

1 11.0 in Dec 19, 2008
2 10.7 in Feb 2, 2011
3 10.0 in Nov 30, 2025

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 102°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Brookfield's record heat sits well above even a hot day for the season — July's 102°F is about 21°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, Brookfield'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 102°F and as low as −33°F. A single day has delivered over 7 inches of rain or close to 11 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 6 km from the city centre.

How we build these numbers →