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Weather extremes

How extreme does Hitoyoshi's weather get?

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

🔥 Hottest day
101°F Aug 4, 2024

That is about 11°F hotter than a normal August afternoon in Hitoyoshi (typical high near 90°F).

The three most extreme on record

1 101°F Aug 4, 2024recent
2 101°F Aug 3, 2024
3 100°F Aug 8, 2015
❄️ Coldest night
14°F Jan 25, 2016

About 16°F colder than a normal January night in Hitoyoshi (typical low near 31°F).

The three most extreme on record

1 14°F Jan 25, 2016
2 15°F Jan 24, 2016
3 16°F Feb 3, 2012
🌧️ Most rain in one day
12.91 in Jul 22, 2006

About 67% of a typical July's rain in a single day (Hitoyoshi averages roughly 19.3 in across the month).

The three most extreme on record

1 12.91 in Jul 22, 2006
2 11.50 in Jul 3, 1995
3 9.21 in Aug 1, 1993

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 101°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Hitoyoshi's record heat sits well above even a hot day for the season — August's 101°F is about 11°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, Hitoyoshi's warmest days reach the low 90s°F and its coldest nights drop to the low 30s°F. But across the record it has gone as high as 101°F and as low as 14°F. A single day has delivered over 13 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 Hitoyoshi, inside the city.

How we build these numbers →