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Weather extremes

How extreme does Hagerstown's weather get?

The hottest, coldest, wettest and snowiest days Hagerstown 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 Chambersburg 1 Ese station 33 km away. Updated through July 2025 — 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 Hagerstown has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
104°F Jul 22, 2011

That is about 19°F hotter than a normal July afternoon in Hagerstown (typical high near 85°F).

The three most extreme on record

1 104°F Jul 22, 2011
2 103°F Jul 16, 1988
3 102°F Aug 20, 1983
❄️ Coldest night
-21°F Jan 19, 1994

About 44°F colder than a normal January night in Hagerstown (typical low near 23°F).

The three most extreme on record

1 -21°F Jan 19, 1994
2 -21°F Jan 21, 1994
3 -12°F Jan 21, 1985
🌧️ Most rain in one day
4.65 in Jun 22, 1972

More rain in a single day than Hagerstown usually gets in the whole month of June (typical June total about 4.1 in).

The three most extreme on record

1 4.65 in Jun 22, 1972
2 4.00 in Oct 11, 2013
3 3.84 in Jun 27, 2006
Most snow in one day
26.2 in Jan 23, 2016

Close to a whole typical January's snow in one day (Hagerstown averages about 10 in across the month).

The three most extreme on record

1 26.2 in Jan 23, 2016
2 18.0 in Mar 13, 1993
3 18.0 in Jan 17, 1994

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

Hagerstown's record heat sits well above even a hot day for the season — July's 104°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, Hagerstown's warmest days reach the mid-80s°F and its coldest nights drop to the low 20s°F. But across the record it has gone as high as 104°F and as low as −21°F. A single day has delivered over 5 inches of rain or close to 26 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 Chambersburg 1 Ese (NOAA GHCN station USC00361354), about 33 km from the city centre.

How we build these numbers →