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Weather extremes

How extreme does Kirishima's weather get?

The hottest, coldest, wettest and snowiest days Kirishima 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 Kagoshima station 8 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 Kirishima has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
97°F Aug 17, 2020

That is about 10°F hotter than a normal August afternoon in Kirishima (typical high near 86°F).

The three most extreme on record

1 97°F Aug 17, 2020
2 97°F Aug 18, 2020
3 95°F Jul 12, 1994
❄️ Coldest night
16°F Jan 24, 2016

About 19°F colder than a normal January night in Kirishima (typical low near 35°F).

The three most extreme on record

1 16°F Jan 24, 2016
2 19°F Feb 10, 1996
3 19°F Jan 24, 1998
🌧️ Most rain in one day
10.12 in Jul 4, 1993

The three most extreme on record

1 10.12 in Jul 4, 1993
2 10.12 in Aug 21, 1993
3 10.08 in Jul 3, 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° all-time high 97°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Kirishima's record heat sits well above even a hot day for the season — August's 97°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, Kirishima's warmest days reach the mid-80s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 97°F and as low as 16°F. A single day has delivered over 10 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 Kagoshima, about 29 km from the city centre.

How we build these numbers →