Kiryū climate — normals and trends
Kiryū has a hot-summer humid continental climate, averaging 11.7 °C annually with 1,528 mm of rain per year.
Climate normals · ERA5
KiryūGunma
- coords
- 36.40°, 139.33°
- period
- 1940–2025 · 86 yrs
The normals for this period
The average of every indicator across the whole window: temperature, water, sky, wind and notable days.
Mean daily temperature
11.7°C
Average daily high
15.7°C
Average daily low
7.9°C
Annual rainfall
1,528mm
Sunshine / day
8.5h
Mean relative humidity
72%
Average peak wind
10.6km/h
Seasonal range
23.8°C
Frost days (< 0 °C)
93 d/yr
Hot days (≥ 30 °C)
11 d/yr
Rainy days (≥ 1 mm)
169 d/yr
Annual snowfall
61.1 cm
Average feels-like high
15.0 °C
Average feels-like low
6.4 °C
Average peak gust
31.8 km/h
Tropical nights (≥ 20 °C)
41 d/yr
Solar radiation
13.9 MJ/m²
Has the climate changed?
What the yearly averages say about warming here, and whether the slope is statistically solid.
+2.8 °C
since 1940
+0.3 °C per decade · r² = 0.70 · p = < 0.001
Trend fitted by linear regression (ordinary least squares) on annual means. A trend is shown only when it is statistically significant (p < 0.05).
Climate month by month
How an average year unfolds: when it rains, when it turns hot, when the sun is out.
A climograph overlays rainfall (bars) and temperature (line): the standard reading in climatology, where you can see at a glance whether the warm season is also the dry one.
Records for the period
The most extreme days ever measured here, then the year-by-year detail.
Hottest day
35.2 °C
29 July 2024
Coldest day
-15.8 °C
16 February 1967
Wettest day
207 mm
12 October 2019
Windiest day
45.7 km/h
2 August 1982
Strongest gust
170.3 km/h
27 September 1959
Hottest feels-like
40.7 °C
2 August 2022
Coldest feels-like
-20.9 °C
16 February 1967
Snowiest day
49.4 cm
15 February 2014
Sunniest day
14.1 h
16 June 2004
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and compare it with the normal: warmer, drier, more extreme?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 6.2 °C | +1.9 °C | 32 mm | -10 mm |
| Feb | 5.1 °C | +0.1 °C | 15 mm | -38 mm |
| Mar | 10.8 °C | +2.0 °C | 123 mm | +33 mm |
| Apr | 16.3 °C | +1.3 °C | 127 mm | +13 mm |
| May | 19.6 °C | 0.0 °C | 208 mm | +69 mm |
| Jun | 25.7 °C | +3.4 °C | 154 mm | -39 mm |
| Jul | 29.3 °C | +3.2 °C | 202 mm | -21 mm |
| Aug | 30.3 °C | +3.0 °C | 98 mm | -106 mm |
| Sep | 26.4 °C | +3.2 °C | 158 mm | -53 mm |
| Oct | 18.3 °C | +0.7 °C | 119 mm | -28 mm |
| Nov | 13.2 °C | +0.7 °C | 30 mm | -39 mm |
| Dec | 8.3 °C | +1.1 °C | 40 mm | -3 mm |
The year's extremes
What was the weather like that day?
The weather actually measured on a given date, anywhere in the covered window.
Climate at a glance
What these normals say about the place, in a few sentences, and the notions needed to read them.
Kiryū (Japan) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.7 °C and it receives 1,528 mm of precipitation per year.
These figures are normals computed over 86 complete calendar years, from 1940 to 2025, using ERA5 reanalysis data from the Copernicus programme.
The warmest month is August (23.7 °C on average) and the coldest is January (-0.1 °C). Rainfall peaks in July.
Kiryū averages 93 frost days, 11 hot days (≥ 30 °C) and 169 rainy days per year.
Kiryū has warmed by +2.8 °C between 1940 and 2025, or +0.32 °C per decade. This trend is statistically significant.
The number of frost days there went from about 116 to 70 per year over the period.
The hottest day of the period reached 35.2 °C (on 29 July 2024) and the coldest -15.8 °C (on 16 February 1967).
Data from ERA5 reanalysis (Copernicus Climate Change Service), redistributed under a CC-BY 4.0 licence. Normals are recomputed whenever the archive is updated.
Compare Kiryū with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kiryū
Other cities — Japan
Frequently asked questions
What is the climate of Kiryū?
Kiryū has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.7 °C and it receives 1,528 mm of precipitation per year.
What is the hottest day ever recorded in Kiryū?
The hottest day measured in Kiryū between 1940 and 2025 was 29 July 2024, reaching 35.2 °C.
What is the coldest day in Kiryū?
The coldest day measured in Kiryū between 1940 and 2025 was 16 February 1967, at -15.8 °C.
Does it snow in Kiryū?
Yes. Kiryū gets on average 61.1 cm of snow per year and has around 93 frost days.
Has the climate of Kiryū warmed?
Yes: Kiryū warmed by +2.8 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kiryū?
The wettest day measured in Kiryū between 1940 and 2025 was 12 October 2019, with 207 mm of rain in 24 hours.
What was the windiest day in Kiryū?
The windiest day measured in Kiryū between 1940 and 2025 was 2 August 1982, with winds reaching 45.7 km/h.
What is the warmest month in Kiryū?
The warmest month in Kiryū is August (23.7 °C on average); the coldest is January (-0.1 °C).
How much does it rain in Kiryū?
Kiryū receives on average 1,528 mm of precipitation per year, spread over about 169 rainy days.
Is it sunny in Kiryū?
Kiryū gets on average 8.5 hours of sunshine per day, roughly 3,103 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kiryū?
The heaviest 24-hour snowfall measured in Kiryū between 1940 and 2025 was 15 February 2014, with 49.4 cm.
Are there tropical nights in Kiryū?
Yes: Kiryū has on average 41 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kiryū?
In Kiryū, between 1940 and 2025, the highest apparent temperature reached 40.7 °C on 2 August 2022, and the lowest was -20.9 °C on 16 February 1967.
These forecasts and records come from our own weather API. Developer documentation →