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Weather extremes
How extreme does Oulu's weather get?
The hottest, coldest, wettest and snowiest days Oulu 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 Oulu has recorded — each shown against what a normal day that time of year looks like.
That is about 21°F hotter than a normal July afternoon in Oulu (typical high near 70°F).
The three most extreme on record
About 47°F colder than a normal January night in Oulu (typical low near 11°F).
The three most extreme on record
About 98% of a typical August's rain in a single day (Oulu averages roughly 2.2 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.
Oulu's record heat sits well above even a hot day for the season — July's 91°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
Methodology & sources
Temperature & precipitation — 1991–2020 normals computed from 22 years of daily observations at Oulunsalo Oulun Lentoasema, a weather station, about 11 km from the city centre. The underlying daily records come from NOAA's global station network.