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Weather extremes

How extreme does Jackson's weather get?

The hottest, coldest, wettest and snowiest days Jackson 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 Jackson Exp Stn station 3 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 Jackson has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
110°F Jul 9, 2008

That is about 19°F hotter than a normal July afternoon in Jackson (typical high near 91°F).

The three most extreme on record

1 110°F Jul 9, 2008
2 105°F Aug 16, 2007
3 105°F Aug 17, 2007
❄️ Coldest night
-10°F Jan 20, 1985

About 37°F colder than a normal January night in Jackson (typical low near 27°F).

The three most extreme on record

1 -10°F Jan 20, 1985
2 -10°F Jan 21, 1985
3 -7°F Dec 22, 1989
🌧️ Most rain in one day
7.86 in Dec 25, 1987

More rain in a single day than Jackson usually gets in the whole month of December (typical December total about 5.3 in).

The three most extreme on record

1 7.86 in Dec 25, 1987
2 7.15 in Sep 27, 2002
3 5.50 in May 10, 1974
Most snow in one day
8.0 in Jan 30, 2010

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

The three most extreme on record

1 8.0 in Jan 30, 2010
2 6.2 in Feb 7, 1979
3 6.0 in Jan 4, 1985

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.

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

Jackson's record heat sits well above even a hot day for the season — July's 110°F is about 19°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, Jackson's warmest days reach the low 90s°F and its coldest nights drop to the high 20s°F. But across the record it has gone as high as 110°F and as low as −10°F. A single day has delivered over 8 inches of rain or close to 8 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 Jackson Exp Stn (NOAA GHCN station USC00404561), about 3 km from the city centre.

How we build these numbers →