How extreme does Tachikawa's weather get?

The hottest, coldest, wettest and snowiest days Tachikawa has recorded — the outer limits of what its weather can do, and how far they sit beyond a normal day.

Based on 26 years of daily weather observations (1999–present), from the Yokota Ab station 8 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 Tachikawa has recorded — each shown against what a normal day that time of year looks like.

🔥 Hottest day

105°F Aug 10, 2021

The three most extreme on record

1 105°F Aug 10, 2021recent

2 103°F Aug 5, 2025

3 103°F Jul 23, 2018

❄️ Coldest night

15°F Jan 25, 2018

The three most extreme on record

1 15°F Jan 25, 2018

2 15°F Jan 26, 2018

3 15°F Jan 24, 2018

🌧️ Most rain in one day

11.02 in Oct 12, 2019

The three most extreme on record

1 11.02 in Oct 12, 2019

2 10.69 in Oct 22, 2017

3 10.04 in Aug 29, 2024

In plain terms

Across the record, Tachikawa has reached as high as 105°F and as low as 15°F. A single day has delivered over 11 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 Fuchu, about 6 km from the city centre.

How we build these numbers →

← Tachikawa city detail