How extreme does Mountain Brook's weather get?

The hottest, coldest, wettest and snowiest days Mountain Brook 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 Birmingham Ap 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 Mountain Brook has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

106°F Jul 13, 1980

That is about 15°F hotter than a normal July afternoon in Mountain Brook (typical high near 91°F).

The three most extreme on record

1 106°F Jul 13, 1980

2 105°F Jul 7, 1977

3 105°F Jul 16, 1980

❄️ Coldest night

-6°F Jan 21, 1985

About 41°F colder than a normal January night in Mountain Brook (typical low near 35°F).

The three most extreme on record

1 -6°F Jan 21, 1985

2 -4°F Jan 20, 1985

3 -1°F Jan 11, 1982

🌧️ Most rain in one day

9.75 in Sep 16, 2004

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

The three most extreme on record

1 9.75 in Sep 16, 2004

2 7.11 in Sep 5, 2011

3 6.97 in Jun 8, 2022

⛄ Most snow in one day

10.3 in Mar 13, 1993

Close to a whole typical March's snow in one day (Mountain Brook averages about 1 in across the month).

The three most extreme on record

1 10.3 in Mar 13, 1993

2 5.0 in Jan 13, 1982

3 5.0 in Apr 3, 1987

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.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

Mountain Brook's record heat sits well above even a hot day for the season — July's 106°F is about 15°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, Mountain Brook's warmest days reach the low 90s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 106°F and as low as −6°F. A single day has delivered over 10 inches of rain or close to 10 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 Birmingham AP (NOAA GHCN station USW00013876), about 7 km from the city centre.

How we build these numbers →

← Mountain Brook city detail