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Weather extremes

How extreme does Hikari's weather get?

The hottest, coldest, wettest and snowiest days Hikari 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 Hofu station 38 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 Hikari has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
99°F Jul 16, 2001

That is about 14°F hotter than a normal July afternoon in Hikari (typical high near 85°F).

The three most extreme on record

1 99°F Jul 16, 2001
2 99°F Aug 4, 2001
3 99°F Aug 11, 2013
❄️ Coldest night
18°F Jan 22, 2004

About 16°F colder than a normal January night in Hikari (typical low near 34°F).

The three most extreme on record

1 18°F Jan 22, 2004
2 18°F Jan 24, 2016
3 18°F Jan 8, 2021
🌧️ Most rain in one day
2.44 in May 8, 1992

The three most extreme on record

1 2.44 in May 8, 1992
2 2.05 in Mar 20, 1992
3 1.89 in Mar 15, 1992

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

Hikari'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, Hikari'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 18°F. A single day has delivered over 2 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 Kudamatsu, about 9 km from the city centre.

How we build these numbers →