How extreme does Ilulissat's weather get?

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

Based on 21 years of daily weather observations (2004–present), from the Jakobshavn Lufthavn 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 Ilulissat has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

71°F Jul 25, 2017

The three most extreme on record

1 71°F Jul 25, 2017

2 70°F Jul 10, 2012

3 69°F Jul 24, 2011

❄️ Coldest night

-29°F Feb 25, 2017

The three most extreme on record

1 -29°F Feb 25, 2017

2 -29°F Feb 10, 2008

3 -28°F Feb 24, 2017

🌧️ Most rain in one day

2.98 in Apr 17, 2005

Top recorded days

1 2.98 in Apr 17, 2005

In plain terms

Across the record, Ilulissat has reached as high as 71°F and as low as −29°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 27 years of daily observations at Aasiaat (egedesminde), a weather station, about 91 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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