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Weather extremes

How extreme does Douglas's weather get?

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

Based on 34 years of daily weather observations (1991–present), from the Isle Of Man station 12 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 Douglas has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
82°F Jun 13, 2023

That is about 21°F hotter than a normal June afternoon in Douglas (typical high near 62°F).

The three most extreme on record

1 82°F Jun 13, 2023recent
2 82°F Aug 1, 1995
3 82°F Jul 16, 2003
❄️ Coldest night
19°F Apr 28, 2008

About 23°F colder than a normal April night in Douglas (typical low near 42°F).

The three most extreme on record

1 19°F Apr 28, 2008
2 20°F Dec 27, 1995
3 21°F Apr 17, 2008
🌧️ Most rain in one day
10.20 in Jun 26, 1998

More rain in a single day than Douglas usually gets in the whole month of June (typical June total about 2.8 in).

The three most extreme on record

1 10.20 in Jun 26, 1998
2 6.73 in Aug 4, 1992
3 4.03 in Mar 20, 1991

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°10°30°50°70°90°110° all-time high 82°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Douglas's record heat sits well above even a hot day for the season — June's 82°F is about 21°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, Douglas's warmest days reach the mid-60s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 82°F and as low as 19°F. A single day has delivered over 10 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 30 years of daily observations at Ronaldsway, a weather station, about 12 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →