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Weather extremes
How extreme does Katsushika's weather get?
The hottest, coldest, wettest and snowiest days Katsushika has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.
The four kinds of extreme
The hottest, coldest, wettest and snowiest single days Katsushika has recorded — each shown against what a normal day that time of year looks like.
That is about 17°F hotter than a normal July afternoon in Katsushika (typical high near 86°F).
The three most extreme on record
About 11°F colder than a normal January night in Katsushika (typical low near 36°F).
The three most extreme on record
More rain in a single day than Katsushika usually gets in the whole month of September (typical September total about 8.7 in).
The three most extreme on record
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.
Katsushika's record heat sits well above even a hot day for the season — July's 103°F is about 17°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
Methodology & sources
Temperature & precipitation — the official 1991–2020 climate normals from the Japan Meteorological Agency, measured at Tokyo, about 10 km from the city centre.