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Weather extremes

How extreme does Chikugo's weather get?

The hottest, coldest, wettest and snowiest days Chikugo has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 26 years of daily weather observations (1999–present), from the Saga station 19 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 Chikugo has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
99°F Aug 8, 2006

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

The three most extreme on record

1 99°F Aug 8, 2006
2 99°F Jul 27, 2018
3 97°F Aug 4, 2001
❄️ Coldest night
19°F Jan 24, 2016

About 15°F colder than a normal January night in Chikugo (typical low near 35°F).

The three most extreme on record

1 19°F Jan 24, 2016
2 21°F Jan 10, 2013
3 21°F Jan 12, 2018

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 99°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Chikugo's record heat sits well above even a hot day for the season — August's 99°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, Chikugo's warmest days reach the high 80s°F and its coldest nights drop to the mid-30s°F. But across the record it has gone as high as 99°F and as low as 19°F. 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 Kurume, about 11 km from the city centre.

How we build these numbers →