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Weather extremes

How extreme does Minami-Sōma's weather get?

The hottest, coldest, wettest and snowiest days Minami-Sōma 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 Fukushima station 48 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 Minami-Sōma has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
102°F Aug 5, 2023

That is about 15°F hotter than a normal August afternoon in Minami-Sōma (typical high near 87°F).

The three most extreme on record

1 102°F Aug 5, 2023recent
2 102°F Jul 14, 2015
3 102°F Aug 5, 2015
❄️ Coldest night
16°F Jan 15, 2001

About 13°F colder than a normal January night in Minami-Sōma (typical low near 28°F).

The three most extreme on record

1 16°F Jan 15, 2001
2 16°F Jan 14, 2001
3 17°F Jan 10, 2006
🌧️ Most rain in one day
5.53 in Oct 23, 2017

More rain in a single day than Minami-Sōma usually gets in the whole month of October (typical October total about 5.3 in).

The three most extreme on record

1 5.53 in Oct 23, 2017
2 5.20 in Sep 21, 2011
3 4.77 in Jun 30, 1999

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.

-10°10°30°50°70°90°110°130° all-time high 102°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Minami-Sōma's record heat sits well above even a hot day for the season — August's 102°F is about 15°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, Minami-Sōma's warmest days reach the high 80s°F and its coldest nights drop to the high 20s°F. But across the record it has gone as high as 102°F and as low as 16°F. A single day has delivered over 6 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 — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Namie, about 15 km from the city centre.

How we build these numbers →