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Weather extremes

How extreme does Kastamonu's weather get?

The hottest, coldest, wettest and snowiest days Kastamonu 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 Kastamonu station 1 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 Kastamonu has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
108°F Jul 30, 2000

That is about 24°F hotter than a normal July afternoon in Kastamonu (typical high near 84°F).

The three most extreme on record

1 108°F Jul 30, 2000
2 107°F Jul 24, 2008
3 105°F Aug 7, 2006
❄️ Coldest night
-4°F Feb 2, 2012

About 30°F colder than a normal February night in Kastamonu (typical low near 26°F).

The three most extreme on record

1 -4°F Feb 2, 2012
2 -2°F Jan 15, 2008
3 1°F Jan 12, 2008
🌧️ Most rain in one day
3.15 in Jan 8, 2019

More rain in a single day than Kastamonu usually gets in the whole month of January (typical January total about 1.4 in).

The three most extreme on record

1 3.15 in Jan 8, 2019
2 2.91 in Sep 6, 2002
3 2.80 in Jun 23, 1991

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°130° all-time high 108°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Kastamonu's record heat sits well above even a hot day for the season — July's 108°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, Kastamonu's warmest days reach the mid-80s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 108°F and as low as −4°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 20 years of daily observations at Kastamonu, 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 →