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Weather extremes

How extreme does Waterford's weather get?

The hottest, coldest, wettest and snowiest days Waterford 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 Waterford (Tycor) station 1 km away. Updated through November 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 Waterford has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
86°F Jun 28, 2018

That is about 20°F hotter than a normal June afternoon in Waterford (typical high near 66°F).

The three most extreme on record

1 86°F Jun 28, 2018
2 85°F Jun 29, 2018
3 84°F Jun 29, 1976
❄️ Coldest night
17°F Jan 13, 1987

About 21°F colder than a normal January night in Waterford (typical low near 38°F).

The three most extreme on record

1 17°F Jan 13, 1987
2 20°F Jan 8, 2010
3 21°F Jan 14, 1987
🌧️ Most rain in one day
3.20 in Aug 3, 1997

More rain in a single day than Waterford usually gets in the whole month of August (typical August total about 3.1 in).

The three most extreme on record

1 3.20 in Aug 3, 1997
2 2.52 in Aug 25, 1986
3 2.45 in Oct 30, 1977

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.

-10°10°30°50°70°90°110° all-time high 86°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Waterford's record heat sits well above even a hot day for the season — June's 86°F is about 20°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, Waterford's warmest days reach the high 60s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 86°F and as low as 17°F. A single day has delivered over 3 inches of rain. Those are the outer edges worth knowing if you are moving here, planning a trip, or thinking about a house.
Methodology & sources

Temperature & precipitation — 1991–2020 normals computed from 25 years of daily observations at Waterford (tycor), a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →