Kumakura climate — normals and trends
Kumakura (Japan) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.7 °C and it receives 1,291 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 (23.3 °C on average) and the coldest is January (-1.3 °C). Rainfall peaks in July.
Kumakura averages 108 frost days, 12 hot days (≥ 30 °C) and 148 rainy days per year.
Kumakura has warmed by +2.7 °C between 1940 and 2025, or +0.31 °C per decade. This trend is statistically significant.
The number of frost days there went from about 126 to 90 per year over the period.
The hottest day of the period reached 34.9 °C (on 8 August 1994) and the coldest -19.8 °C (on 17 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.
Climate normals · ERA5
KumakuraFukushima
- coords
- 37.15°, 140.17°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.7°C
Average daily high
14.8°C
Average daily low
6.9°C
Annual rainfall
1,291mm
Sunshine / day
8.3h
Mean relative humidity
76%
Average peak wind
15.8km/h
Seasonal range
24.6°C
Frost days (< 0 °C)
108 d/yr
Hot days (≥ 30 °C)
12 d/yr
Rainy days (≥ 1 mm)
148 d/yr
Annual snowfall
92.8 cm
Average feels-like high
13.4 °C
Average feels-like low
5.2 °C
Average peak gust
40.0 km/h
Tropical nights (≥ 20 °C)
35 d/yr
Solar radiation
13.6 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.67 · 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).
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
Hottest day
34.9 °C
8 August 1994
Coldest day
-19.8 °C
17 February 1967
Wettest day
186 mm
12 October 2019
Windiest day
50.7 km/h
31 January 1970
Strongest gust
159.8 km/h
27 September 1959
Hottest feels-like
40.8 °C
29 July 2023
Coldest feels-like
-24.6 °C
14 February 1942
Snowiest day
62.0 cm
24 December 1980
Sunniest day
14.2 h
16 June 1982
Normals computed over complete calendar years 1940–2025.
A specific year
Pick a year and see how it compares to normal — warmer, drier or more extreme than usual?
Across the whole year
Month by month
| High | vs. normal | Precipitation | vs. normal | |
|---|---|---|---|---|
| Jan | 4.3 °C | +1.8 °C | 35 mm | -13 mm |
| Feb | 3.1 °C | -0.1 °C | 22 mm | -30 mm |
| Mar | 9.6 °C | +2.4 °C | 90 mm | +7 mm |
| Apr | 15.4 °C | +1.4 °C | 104 mm | +8 mm |
| May | 19.4 °C | +0.3 °C | 182 mm | +72 mm |
| Jun | 25.8 °C | +3.6 °C | 137 mm | -13 mm |
| Jul | 30.1 °C | +4.2 °C | 58 mm | -118 mm |
| Aug | 29.8 °C | +2.5 °C | 165 mm | +19 mm |
| Sep | 26.0 °C | +3.2 °C | 150 mm | -26 mm |
| Oct | 17.6 °C | +0.7 °C | 142 mm | +11 mm |
| Nov | 12.3 °C | +1.1 °C | 52 mm | -19 mm |
| Dec | 7.3 °C | +1.8 °C | 65 mm | +13 mm |
The year's extremes
What was the weather like that day?
Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.
Frequently asked questions
What is the climate of Kumakura?
Kumakura has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.7 °C and it receives 1,291 mm of precipitation per year.
What is the hottest day ever recorded in Kumakura?
The hottest day measured in Kumakura between 1940 and 2025 was 8 August 1994, reaching 34.9 °C.
What is the coldest day in Kumakura?
The coldest day measured in Kumakura between 1940 and 2025 was 17 February 1967, at -19.8 °C.
Does it snow in Kumakura?
Yes. Kumakura gets on average 92.8 cm of snow per year and has around 108 frost days.
Has the climate of Kumakura warmed?
Yes: Kumakura warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kumakura?
The wettest day measured in Kumakura between 1940 and 2025 was 12 October 2019, with 186 mm of rain in 24 hours.
What was the windiest day in Kumakura?
The windiest day measured in Kumakura between 1940 and 2025 was 31 January 1970, with winds reaching 50.7 km/h.
What is the warmest month in Kumakura?
The warmest month in Kumakura is August (23.3 °C on average); the coldest is January (-1.3 °C).
How much does it rain in Kumakura?
Kumakura receives on average 1,291 mm of precipitation per year, spread over about 148 rainy days.
Is it sunny in Kumakura?
Kumakura gets on average 8.3 hours of sunshine per day, roughly 3,030 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kumakura?
The heaviest 24-hour snowfall measured in Kumakura between 1940 and 2025 was 24 December 1980, with 62.0 cm.
Are there tropical nights in Kumakura?
Yes: Kumakura has on average 35 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kumakura?
In Kumakura, between 1940 and 2025, the highest apparent temperature reached 40.8 °C on 29 July 2023, and the lowest was -24.6 °C on 14 February 1942.
Compare Kumakura with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kumakura