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Weather extremes
How extreme does Tromsø's weather get?
The hottest, coldest, wettest and snowiest days Tromsø has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Tromsø has recorded — each shown against what a normal day that time of year looks like.
That is about 25°F hotter than a normal July afternoon in Tromsø (typical high near 61°F).
The three most extreme on record
About 23°F colder than a normal January night in Tromsø (typical low near 22°F).
The three most extreme on record
About 67% of a typical July's rain in a single day (Tromsø averages roughly 2.9 in across the month).
The three most extreme on record
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.
Tromsø's record heat sits well above even a hot day for the season — July's 86°F is about 25°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
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 30 years of daily observations at Tromso, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.