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Weather extremes

How extreme does Yonago's weather get?

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

🔥 Hottest day
102°F Aug 1, 1994

That is about 13°F hotter than a normal August afternoon in Yonago (typical high near 89°F).

The three most extreme on record

1 102°F Aug 1, 1994
2 102°F Aug 1, 2022
3 102°F Aug 14, 2007
❄️ Coldest night
21°F Feb 7, 2018

About 12°F colder than a normal February night in Yonago (typical low near 33°F).

The three most extreme on record

1 21°F Feb 7, 2018
2 22°F Feb 9, 2018
3 22°F Jan 29, 2003
🌧️ Most rain in one day
9.21 in Jun 29, 1993

More rain in a single day than Yonago usually gets in the whole month of June (typical June total about 6.9 in).

The three most extreme on record

1 9.21 in Jun 29, 1993
2 7.09 in Sep 30, 2018
3 6.81 in Jul 15, 2013

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°130° all-time high 102°F JanFebMarAprMayJunJulAugSepOctNovDec
normal range of daily temperatureshottest ever recordedcoldest ever recorded

Yonago's record heat sits well above even a hot day for the season — August's 102°F is about 13°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, Yonago's warmest days reach the high 80s°F and its coldest nights drop to the low 30s°F. But across the record it has gone as high as 102°F and as low as 21°F. A single day has delivered over 9 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 Yonago, inside the city.

How we build these numbers →