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Weather extremes

How extreme does Salo's weather get?

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

Based on 50+ years of daily weather observations (1971–present), from the Salo Karkka station 1 km away. Updated through April 2026 — 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 Salo has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
92°F Jul 28, 2019

That is about 19°F hotter than a normal July afternoon in Salo (typical high near 73°F).

The three most extreme on record

1 92°F Jul 28, 2019
2 91°F Jul 13, 2010
3 91°F Jul 14, 2021
❄️ Coldest night
-34°F Feb 15, 1979

About 52°F colder than a normal February night in Salo (typical low near 18°F).

The three most extreme on record

1 -34°F Feb 15, 1979
2 -34°F Jan 26, 1985
3 -30°F Feb 16, 1979
🌧️ Most rain in one day
2.69 in Jul 19, 1973

More rain in a single day than Salo usually gets in the whole month of July (typical July total about 2.5 in).

The three most extreme on record

1 2.69 in Jul 19, 1973
2 2.42 in Jul 28, 1988
3 2.24 in Aug 28, 1980

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.

-50°-30°-10°10°30°50°70°90°110° all-time high 92°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Salo's record heat sits well above even a hot day for the season — July's 92°F is about 19°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, Salo's warmest days reach the low 70s°F and its coldest nights drop to the high 10s°F. But across the record it has gone as high as 92°F and as low as −34°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 30 years of daily observations at Salo Karkka, a weather station, about 1 km from the city centre. The underlying daily records come from NOAA's global station network.

How we build these numbers →