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Weather extremes

How extreme does Surrey's weather get?

The hottest, coldest, wettest and snowiest days Surrey 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 White Rock Campbell Scientific station 10 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 Surrey has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
101°F Jun 28, 2021

That is about 34°F hotter than a normal June afternoon in Surrey (typical high near 68°F).

The three most extreme on record

1 101°F Jun 28, 2021recent
2 99°F Aug 12, 2021
3 98°F Jun 27, 2021
❄️ Coldest night
6°F Jan 12, 2024

About 30°F colder than a normal January night in Surrey (typical low near 36°F).

The three most extreme on record

1 6°F Jan 12, 2024recent
2 9°F Dec 27, 2021
3 10°F Jan 13, 2024
🌧️ Most rain in one day
4.69 in Oct 16, 2003

About 92% of a typical October's rain in a single day (Surrey averages roughly 5.1 in across the month).

The three most extreme on record

1 4.69 in Oct 16, 2003
2 3.28 in May 4, 2014
3 2.96 in Mar 11, 2007

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°130° all-time high 101°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Surrey's record heat sits well above even a hot day for the season — June's 101°F is about 34°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, Surrey's warmest days reach the low 70s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 101°F and as low as 6°F. A single day has delivered over 5 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 27 years of daily observations at White Rock Campbell Scientific, a weather station, about 10 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →