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Weather extremes

How extreme does Noboribetsu's weather get?

The hottest, coldest, wettest and snowiest days Noboribetsu 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 Muroran/Yakumo station 22 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 Noboribetsu has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day
90°F Jul 25, 2025

That is about 19°F hotter than a normal July afternoon in Noboribetsu (typical high near 71°F).

The three most extreme on record

1 90°F Jul 25, 2025recent
2 90°F Jul 24, 2025
3 89°F Aug 29, 2020
❄️ Coldest night
10°F Jan 25, 2023

About 14°F colder than a normal January night in Noboribetsu (typical low near 24°F).

The three most extreme on record

1 10°F Jan 25, 2023recent
2 10°F Feb 3, 2001
3 10°F Jan 24, 2023
🌧️ Most rain in one day
6.52 in Aug 12, 2010

About 92% of a typical August's rain in a single day (Noboribetsu averages roughly 7.1 in across the month).

The three most extreme on record

1 6.52 in Aug 12, 2010
2 6.46 in Aug 10, 2021
3 5.31 in Jul 23, 2008

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 90°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Noboribetsu's record heat sits well above even a hot day for the season — July's 90°F is about 19°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, Noboribetsu's warmest days reach the mid-70s°F and its coldest nights drop to the mid-20s°F. But across the record it has gone as high as 90°F and as low as 10°F. A single day has delivered over 7 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 Noboribetsu, about 5 km from the city centre.

How we build these numbers →