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Weather extremes

How extreme does Lockport's weather get?

The hottest, coldest, wettest and snowiest days Lockport 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 Lockport 2Se station 4 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 Lockport has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
100°F Jul 8, 1988

That is about 18°F hotter than a normal July afternoon in Lockport (typical high near 82°F).

The three most extreme on record

1 100°F Jul 8, 1988
2 99°F Jul 7, 1988
3 95°F Jul 6, 1988
❄️ Coldest night
-19°F Feb 18, 1979

About 38°F colder than a normal February night in Lockport (typical low near 19°F).

The three most extreme on record

1 -19°F Feb 18, 1979
2 -17°F Feb 17, 1979
3 -15°F Jan 23, 1976
🌧️ Most rain in one day
50.00 in Aug 9, 1983

More rain in a single day than Lockport usually gets in the whole month of August (typical August total about 3.2 in).

The three most extreme on record

1 50.00 in Aug 9, 1983
2 4.42 in Sep 14, 1979
3 3.36 in Sep 13, 1977
Most snow in one day
22.0 in Dec 24, 2022

The three most extreme on record

1 22.0 in Dec 24, 2022recent
2 21.8 in Jan 17, 2022
3 20.0 in Feb 28, 1984

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° all-time high 100°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Lockport's record heat sits well above even a hot day for the season — July's 100°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, Lockport's warmest days reach the low 80s°F and its coldest nights drop to the high 10s°F. But across the record it has gone as high as 100°F and as low as −19°F. A single day has delivered over 50 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 Buffalo (NOAA GHCN station USW00014733), about 25 km from the city centre.

How we build these numbers →