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Weather extremes

How extreme does Waterlooville's weather get?

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

Based on 34 years of daily weather observations (1991–present), from the Thorney Island station 11 km away. Updated through August 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 Waterlooville has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
95°F Aug 6, 2003

That is about 24°F hotter than a normal August afternoon in Waterlooville (typical high near 71°F).

The three most extreme on record

1 95°F Aug 6, 2003
2 91°F Aug 2, 1995
3 91°F Aug 12, 2022
❄️ Coldest night
15°F Feb 7, 1991

About 21°F colder than a normal February night in Waterlooville (typical low near 37°F).

The three most extreme on record

1 15°F Feb 7, 1991
2 16°F May 4, 1993
3 17°F Feb 8, 1991
🌧️ Most rain in one day
2.26 in Dec 2, 1991

About 74% of a typical December's rain in a single day (Waterlooville averages roughly 3.1 in across the month).

The three most extreme on record

1 2.26 in Dec 2, 1991
2 2.17 in Jun 12, 2012
3 2.06 in Oct 27, 2011

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 95°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Waterlooville's record heat sits well above even a hot day for the season — August's 95°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, Waterlooville's warmest days reach the low 70s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 95°F and as low as 15°F. A single day has delivered over 2 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 28 years of daily observations at Thorney Island, a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →