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Weather extremes

How extreme does Sanyōonoda's weather get?

The hottest, coldest, wettest and snowiest days Sanyōonoda 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 Ozuki station 10 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 Sanyōonoda has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
99°F Jul 19, 1994

That is about 14°F hotter than a normal July afternoon in Sanyōonoda (typical high near 84°F).

The three most extreme on record

1 99°F Jul 19, 1994
2 99°F Jul 28, 2021
3 99°F Jul 29, 2021
❄️ Coldest night
23°F Jan 24, 1998

About 14°F colder than a normal January night in Sanyōonoda (typical low near 37°F).

The three most extreme on record

1 23°F Jan 24, 1998
2 25°F Feb 22, 1991
3 25°F Feb 10, 1996
🌧️ Most rain in one day
0.31 in Aug 10, 1993

Top recorded days

1 0.31 in Aug 10, 1993
2 0.16 in Sep 17, 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°30°50°70°90°110° all-time high 99°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Sanyōonoda's record heat sits well above even a hot day for the season — July's 99°F is about 14°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, Sanyōonoda's warmest days reach the high 80s°F and its coldest nights drop to the high 30s°F. But across the record it has gone as high as 99°F and as low as 23°F. A single day has delivered over 0 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 Ube, about 16 km from the city centre.

How we build these numbers →