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Weather extremes

How extreme does Kaseda-shirakame's weather get?

The hottest, coldest, wettest and snowiest days Kaseda-shirakame 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 Makurazaki station 17 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 Kaseda-shirakame has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
98°F Aug 18, 2020

That is about 10°F hotter than a normal August afternoon in Kaseda-shirakame (typical high near 89°F).

The three most extreme on record

1 98°F Aug 18, 2020
2 98°F Aug 22, 2016
3 98°F Aug 3, 2024
❄️ Coldest night
26°F Feb 11, 1996

About 15°F colder than a normal February night in Kaseda-shirakame (typical low near 41°F).

The three most extreme on record

1 26°F Feb 11, 1996
2 26°F Jan 25, 2016
3 26°F Jan 24, 2016
🌧️ Most rain in one day
10.87 in Sep 16, 1997

More rain in a single day than Kaseda-shirakame usually gets in the whole month of September (typical September total about 8.8 in).

The three most extreme on record

1 10.87 in Sep 16, 1997
2 10.63 in Apr 24, 1998
3 10.04 in Jul 3, 2007

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°30°50°70°90°110° all-time high 98°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Kaseda-shirakame's record heat sits well above even a hot day for the season — August's 98°F is about 10°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, Kaseda-shirakame's warmest days reach the high 80s°F and its coldest nights drop to the low 40s°F. But across the record it has gone as high as 98°F and as low as 26°F. A single day has delivered over 11 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 Kaseda, inside the city.

How we build these numbers →