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Weather extremes

How extreme does Aigáleo's weather get?

The hottest, coldest, wettest and snowiest days Aigáleo 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 Hellinikon station 11 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 Aigáleo has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
109°F Aug 3, 2021

That is about 17°F hotter than a normal August afternoon in Aigáleo (typical high near 92°F).

The three most extreme on record

1 109°F Aug 3, 2021recent
2 108°F Jul 7, 1988
3 107°F Jul 23, 1987
❄️ Coldest night
24°F Feb 18, 2008

About 20°F colder than a normal February night in Aigáleo (typical low near 44°F).

The three most extreme on record

1 24°F Feb 18, 2008
2 25°F Feb 13, 2004
3 25°F Feb 14, 2004
🌧️ Most rain in one day
5.59 in Mar 26, 1998

More rain in a single day than Aigáleo usually gets in the whole month of March (typical March total about 1.6 in).

The three most extreme on record

1 5.59 in Mar 26, 1998
2 3.88 in Mar 18, 1999
3 3.81 in Nov 5, 2001

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°30°50°70°90°110°130° all-time high 109°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Aigáleo's record heat sits well above even a hot day for the season — August's 109°F is about 17°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, Aigáleo's warmest days reach the low 90s°F and its coldest nights drop to the mid-40s°F. But across the record it has gone as high as 109°F and as low as 24°F. A single day has delivered over 6 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 26 years of daily observations at Hellinikon, a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →