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Weather extremes

How extreme does Biddeford's weather get?

The hottest, coldest, wettest and snowiest days Biddeford 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 Portland Jetport station 21 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 Biddeford has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
103°F Aug 2, 1975

That is about 24°F hotter than a normal August afternoon in Biddeford (typical high near 79°F).

The three most extreme on record

1 103°F Aug 2, 1975
2 100°F Jul 22, 2011
3 99°F Jul 21, 1977
❄️ Coldest night
-26°F Jan 19, 1971

About 42°F colder than a normal January night in Biddeford (typical low near 16°F).

The three most extreme on record

1 -26°F Jan 19, 1971
2 -25°F Feb 3, 1971
3 -22°F Jan 17, 1971
🌧️ Most rain in one day
11.74 in Oct 21, 1996

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

The three most extreme on record

1 11.74 in Oct 21, 1996
2 7.75 in Aug 19, 1991
3 6.43 in Aug 13, 2014
Most snow in one day
22.2 in Jan 27, 2015

Close to a whole typical January's snow in one day (Biddeford averages about 19 in across the month).

The three most extreme on record

1 22.2 in Jan 27, 2015
2 17.6 in Dec 17, 2020
3 16.9 in Mar 13, 1993

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

Biddeford's record heat sits well above even a hot day for the season — August's 103°F is about 24°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, Biddeford's warmest days reach the low 80s°F and its coldest nights drop to the mid-10s°F. But across the record it has gone as high as 103°F and as low as −26°F. A single day has delivered over 12 inches of rain or close to 22 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 Sanford 2 Nnw (NOAA GHCN station USC00177479), about 27 km from the city centre.

How we build these numbers →