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Weather extremes

How extreme does Kostanay's weather get?

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

🔥 Hottest day
106°F Jun 16, 1988

That is about 27°F hotter than a normal June afternoon in Kostanay (typical high near 79°F).

The three most extreme on record

1 106°F Jun 16, 1988
2 105°F Jul 11, 2023
3 104°F Jul 6, 1974
❄️ Coldest night
-46°F Dec 22, 1976

About 48°F colder than a normal December night in Kostanay (typical low near 2°F).

The three most extreme on record

1 -46°F Dec 22, 1976
2 -45°F Jan 17, 1972
3 -44°F Jan 24, 2006
🌧️ Most rain in one day
4.71 in Apr 3, 2006

More rain in a single day than Kostanay usually gets in the whole month of April (typical April total about 1.0 in).

The three most extreme on record

1 4.71 in Apr 3, 2006
2 3.29 in Jul 6, 2000
3 2.49 in Jun 30, 1990

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.

-70°-50°-30°-10°10°30°50°70°90°110°130° all-time high 106°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Kostanay's record heat sits well above even a hot day for the season — June's 106°F is about 27°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, Kostanay's warmest days reach the low 80s°F and its coldest nights drop to the low 0s°F. But across the record it has gone as high as 106°F and as low as −46°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 16 years of daily observations at Kustanai, a weather station, inside the city. The underlying daily records come from NOAA's global station network.

How we build these numbers →