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Weather extremes

How extreme does Willingboro's weather get?

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

Based on 33 years of daily weather observations (1993–present), from the Philadelphia/Mt Holly Wfo station 5 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 Willingboro has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F Jul 7, 2010

That is about 18°F hotter than a normal July afternoon in Willingboro (typical high near 85°F).

The three most extreme on record

1 103°F Jul 7, 2010
2 102°F Aug 10, 2001
3 101°F Jul 6, 1999
❄️ Coldest night
-6°F Jan 19, 1994

About 28°F colder than a normal January night in Willingboro (typical low near 23°F).

The three most extreme on record

1 -6°F Jan 19, 1994
2 -6°F Jan 20, 1994
3 -3°F Jan 21, 1994
🌧️ Most rain in one day
6.25 in Jul 23, 2013

More rain in a single day than Willingboro usually gets in the whole month of July (typical July total about 5.1 in).

The three most extreme on record

1 6.25 in Jul 23, 2013
2 5.83 in Aug 28, 2011
3 4.98 in Jun 11, 2018
Most snow in one day
19.5 in Jan 8, 1996

Close to a whole typical January's snow in one day (Willingboro averages about 8 in across the month).

The three most extreme on record

1 19.5 in Jan 8, 1996
2 19.2 in Feb 23, 2026
3 16.1 in Dec 20, 2009

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 103°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Willingboro's record heat sits well above even a hot day for the season — July's 103°F is about 18°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, Willingboro'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 103°F and as low as −6°F. A single day has delivered over 6 inches of rain or close to 20 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 Philadelphia/mt Holly Wfo (NOAA GHCN station USC00286964), about 5 km from the city centre.

How we build these numbers →