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Weather extremes

How extreme does Egilsstaðir's weather get?

The hottest, coldest, wettest and snowiest days Egilsstaðir 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 Egilsstadir station 2 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 Egilsstaðir has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
86°F Aug 16, 2025

That is about 28°F hotter than a normal August afternoon in Egilsstaðir (typical high near 58°F).

The three most extreme on record

1 86°F Aug 16, 2025recent
2 84°F Jul 5, 1991
3 83°F Aug 25, 2021
❄️ Coldest night
-10°F Dec 24, 2022

About 34°F colder than a normal December night in Egilsstaðir (typical low near 24°F).

The three most extreme on record

1 -10°F Dec 24, 2022recent
2 -9°F Dec 22, 2010
3 -8°F Jan 29, 2002
🌧️ Most rain in one day
0.39 in Mar 16, 1991

The three most extreme on record

1 0.39 in Mar 16, 1991
2 0.04 in Feb 23, 1993
3 0.04 in Apr 21, 1993

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° all-time high 86°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Egilsstaðir's record heat sits well above even a hot day for the season — August's 86°F is about 28°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, Egilsstaðir's warmest days reach the high 50s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 86°F and as low as −10°F. A single day has delivered over 0 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 — modelled for this location from ERA5-Land reanalysis, a ~9 km global grid, because no long-record weather station is close enough to use.

How we build these numbers →