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Weather extremes

How extreme does Mölndal's weather get?

The hottest, coldest, wettest and snowiest days Mölndal 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 Save station 16 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 Mölndal has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
93°F Aug 9, 1975

That is about 23°F hotter than a normal August afternoon in Mölndal (typical high near 70°F).

The three most extreme on record

1 93°F Aug 9, 1975
2 92°F Aug 7, 1975
3 91°F Aug 10, 1975
❄️ Coldest night
-146°F Jul 26, 2007

About 200°F colder than a normal July night in Mölndal (typical low near 54°F).

The three most extreme on record

1 -146°F Jul 26, 2007
2 -15°F Jan 9, 1982
3 -9°F Jan 8, 1982
🌧️ Most rain in one day
2.08 in Jul 24, 1997

About 69% of a typical July's rain in a single day (Mölndal averages roughly 3.0 in across the month).

The three most extreme on record

1 2.08 in Jul 24, 1997
2 2.05 in Jul 16, 1995
3 1.91 in Jun 26, 2007

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.

-170°-150°-130°-110°-90°-70°-50°-30°-10°10°30°50°70°90°110° all-time high 93°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Mölndal's record heat sits well above even a hot day for the season — August's 93°F is about 23°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, Mölndal's warmest days reach the low 70s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 93°F and as low as −146°F. A single day has delivered over 2 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 17 years of daily observations at Save, a weather station, about 16 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →