How extreme does Rønne's weather get?

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

Based on 49 years of daily weather observations (1976–present), from the Bornholm Ronne station 5 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 Rønne has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

90°F Aug 10, 1992

That is about 19°F hotter than a normal August afternoon in Rønne (typical high near 71°F).

The three most extreme on record

1 90°F Aug 10, 1992

2 90°F Aug 1, 2002

3 89°F Jul 13, 1994

❄️ Coldest night

4°F Mar 4, 2005

About 28°F colder than a normal March night in Rønne (typical low near 32°F).

The three most extreme on record

1 4°F Mar 4, 2005

2 5°F Jan 11, 2003

3 7°F Dec 27, 1995

🌧️ Most rain in one day

3.03 in Jan 6, 2001

More rain in a single day than Rønne usually gets in the whole month of January (typical January total about 0.7 in).

The three most extreme on record

1 3.03 in Jan 6, 2001

2 1.65 in Jul 9, 1996

3 1.63 in Jul 23, 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.

normal range of daily temperatureshottest ever recordedcoldest ever recorded

Rønne's record heat sits well above even a hot day for the season — August's 90°F is about 19°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, Rønne's warmest days reach the low 70s°F and its coldest nights drop to the low 30s°F. But across the record it has gone as high as 90°F and as low as 4°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 20 years of daily observations at Bornholm Ronne, a weather station, about 5 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →

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