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Weather extremes

How extreme does Herten's weather get?

The hottest, coldest, wettest and snowiest days Herten has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 19 years of daily weather observations (2007–present), from the Waltrop-Abdinghof station 18 km away. Updated through April 2026 — 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 Herten has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
105°F Jul 25, 2019

That is about 29°F hotter than a normal July afternoon in Herten (typical high near 76°F).

The three most extreme on record

1 105°F Jul 25, 2019
2 101°F Jul 24, 2019
3 101°F Jul 19, 2022
❄️ Coldest night
-12°F Jan 6, 2009

About 44°F colder than a normal January night in Herten (typical low near 32°F).

The three most extreme on record

1 -12°F Jan 6, 2009
2 -12°F Jan 7, 2009
3 -4°F Dec 20, 2010
🌧️ Most rain in one day
2.88 in Jun 22, 2023

More rain in a single day than Herten usually gets in the whole month of June (typical June total about 2.4 in).

The three most extreme on record

1 2.88 in Jun 22, 2023recent
2 2.66 in Aug 16, 2023
3 2.36 in Sep 18, 2014

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.

-30°-10°10°30°50°70°90°110°130° all-time high 105°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Herten's record heat sits well above even a hot day for the season — July's 105°F is about 29°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, Herten's warmest days reach the mid-70s°F and its coldest nights drop to the low 30s°F. But across the record it has gone as high as 105°F and as low as −12°F. A single day has delivered over 3 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 13 years of daily observations at Waltrop-abdinghof, a weather station, about 18 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →