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Weather extremes

How extreme does Chalkída's weather get?

The hottest, coldest, wettest and snowiest days Chalkída 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 Tanagra station 14 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 Chalkída has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
111°F Jun 26, 2007

That is about 25°F hotter than a normal June afternoon in Chalkída (typical high near 86°F).

The three most extreme on record

1 111°F Jun 26, 2007
2 111°F Jul 23, 2023
3 111°F Jul 26, 2023
❄️ Coldest night
10°F Feb 18, 2008

About 28°F colder than a normal February night in Chalkída (typical low near 39°F).

The three most extreme on record

1 10°F Feb 18, 2008
2 10°F Feb 19, 2008
3 16°F Jan 10, 2017

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 111°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Chalkída's record heat sits well above even a hot day for the season — June's 111°F is about 25°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, Chalkída's warmest days reach the low 90s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 111°F and as low as 10°F. 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 26 years of daily observations at Hellinikon, a weather station, about 64 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →