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Weather extremes

How extreme does Aïn Defla's weather get?

The hottest, coldest, wettest and snowiest days Aïn Defla 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 (1973–present), from the Ech Cheliff station 57 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 Aïn Defla has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
119°F Jul 10, 2023

That is about 18°F hotter than a normal July afternoon in Aïn Defla (typical high near 101°F).

The three most extreme on record

1 119°F Jul 10, 2023recent
2 119°F Jul 11, 2023
3 119°F Jul 23, 2023
❄️ Coldest night
27°F Jan 28, 1981

About 17°F colder than a normal January night in Aïn Defla (typical low near 44°F).

The three most extreme on record

1 27°F Jan 28, 1981
2 28°F Jan 7, 1975
3 28°F Jan 8, 1975
🌧️ Most rain in one day
7.87 in Apr 29, 1983

More rain in a single day than Aïn Defla usually gets in the whole month of April (typical April total about 2.1 in).

The three most extreme on record

1 7.87 in Apr 29, 1983
2 2.91 in Apr 14, 2012
3 2.60 in Feb 2, 2011

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 119°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Aïn Defla's record heat sits well above even a hot day for the season — July's 119°F is about 18°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, Aïn Defla's warmest days reach the low 100s°F and its coldest nights drop to the mid-40s°F. But across the record it has gone as high as 119°F and as low as 27°F. A single day has delivered over 8 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 25 years of daily observations at Miliana, a weather station, about 24 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →