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Weather extremes

How extreme does Sumqayıt's weather get?

The hottest, coldest, wettest and snowiest days Sumqayıt 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 Heydar Aliyev station 35 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 Sumqayıt has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
109°F Jul 1, 2018

That is about 20°F hotter than a normal July afternoon in Sumqayıt (typical high near 89°F).

The three most extreme on record

1 109°F Jul 1, 2018
2 108°F Aug 9, 2017
3 107°F Aug 8, 2021
❄️ Coldest night
10°F Feb 3, 2014

About 26°F colder than a normal February night in Sumqayıt (typical low near 36°F).

The three most extreme on record

1 10°F Feb 3, 2014
2 12°F Jan 8, 2008
3 16°F Jan 7, 2008
🌧️ Most rain in one day
10.16 in Sep 25, 2008

More rain in a single day than Sumqayıt usually gets in the whole month of September (typical September total about 2.9 in).

The three most extreme on record

1 10.16 in Sep 25, 2008
2 7.87 in Aug 21, 2004
3 3.93 in Aug 23, 2010

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 109°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Sumqayıt's record heat sits well above even a hot day for the season — July's 109°F is about 20°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, Sumqayıt's warmest days reach the high 80s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 109°F and as low as 10°F. A single day has delivered over 10 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 — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

How we build these numbers →