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Weather extremes
How extreme does Nakano's weather get?
The hottest, coldest, wettest and snowiest days Nakano has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.
Based on 33 years of daily weather observations (1992–present), from the Ichigaya station 5 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 Nakano has recorded — each shown against what a normal day that time of year looks like.
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Hottest day
100°F
Jul 23, 2018
The three most extreme on record
1
100°F
Jul 23, 2018
2
99°F
Jul 20, 2004
3
99°F
Aug 17, 2007
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Coldest night
28°F
Jan 22, 1993
The three most extreme on record
1
28°F
Jan 22, 1993
2
28°F
Jan 25, 2023
3
30°F
Feb 14, 2001
In plain terms
Across the record, Nakano has reached as high as 100°F and as low as 28°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 Tokyo, about 7 km from the city centre.