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Weather extremes

How extreme does Kilmarnock's weather get?

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

Based on 32 years of daily weather observations (1993–present), from the Prestwick Rnas station 12 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 Kilmarnock has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
88°F Jul 19, 2006

That is about 23°F hotter than a normal July afternoon in Kilmarnock (typical high near 65°F).

The three most extreme on record

1 88°F Jul 19, 2006
2 86°F Jun 25, 2020
3 86°F Jul 16, 2003
❄️ Coldest night
8°F Feb 5, 2003

About 26°F colder than a normal February night in Kilmarnock (typical low near 35°F).

The three most extreme on record

1 8°F Feb 5, 2003
2 9°F Feb 14, 2003
3 10°F Feb 22, 2004
🌧️ Most rain in one day
10.67 in Oct 25, 1995

More rain in a single day than Kilmarnock usually gets in the whole month of October (typical October total about 4.2 in).

The three most extreme on record

1 10.67 in Oct 25, 1995
2 2.45 in Sep 21, 2012
3 2.28 in Apr 17, 1996

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 88°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Kilmarnock's record heat sits well above even a hot day for the season — July's 88°F is about 23°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, Kilmarnock's warmest days reach the mid-60s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 88°F and as low as 8°F. A single day has delivered over 11 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 Prestwick Rnas, a weather station, about 12 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →