Kesennuma climate — normals and trends
Kesennuma (Japan) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.8 °C and it receives 1,262 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 (23.0 °C on average) and the coldest is January (-0.6 °C). Rainfall peaks in September.
Kesennuma averages 90 frost days, 4 hot days (≥ 30 °C) and 136 rainy days per year.
Kesennuma has warmed by +2.5 °C between 1940 and 2025, or +0.30 °C per decade. This trend is statistically significant.
The number of frost days there went from about 113 to 67 per year over the period.
The hottest day of the period reached 34.1 °C (on 5 August 2015) and the coldest -18.3 °C (on 21 February 1942).
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
KesennumaMiyagi
- coords
- 38.90°, 141.58°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.8°C
Average daily high
14.2°C
Average daily low
7.5°C
Annual rainfall
1,262mm
Sunshine / day
8.4h
Mean relative humidity
75%
Average peak wind
18.1km/h
Seasonal range
23.6°C
Frost days (< 0 °C)
90 d/yr
Hot days (≥ 30 °C)
4 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
61.0 cm
Average feels-like high
12.5 °C
Average feels-like low
5.4 °C
Average peak gust
41.5 km/h
Tropical nights (≥ 20 °C)
35 d/yr
Solar radiation
14.1 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.61 · 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
34.1 °C
5 August 2015
Coldest day
-18.3 °C
21 February 1942
Wettest day
183 mm
15 September 1947
Windiest day
57.2 km/h
31 March 1979
Strongest gust
143.6 km/h
23 August 1981
Hottest feels-like
39.7 °C
4 August 2021
Coldest feels-like
-23.5 °C
9 February 1942
Snowiest day
36.5 cm
18 January 2016
Sunniest day
14.7 h
18 June 1987
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 | 5.0 °C | +2.1 °C | 32 mm | -15 mm |
| Feb | 4.5 °C | +1.0 °C | 17 mm | -35 mm |
| Mar | 9.3 °C | +2.2 °C | 78 mm | -9 mm |
| Apr | 13.8 °C | +1.0 °C | 107 mm | +3 mm |
| May | 17.8 °C | +0.6 °C | 166 mm | +55 mm |
| Jun | 24.4 °C | +4.1 °C | 78 mm | -45 mm |
| Jul | 28.6 °C | +4.5 °C | 112 mm | -43 mm |
| Aug | 28.8 °C | +2.9 °C | 131 mm | -17 mm |
| Sep | 25.2 °C | +2.7 °C | 172 mm | -5 mm |
| Oct | 17.8 °C | +0.6 °C | 133 mm | +6 mm |
| Nov | 12.1 °C | +0.7 °C | 68 mm | -5 mm |
| Dec | 6.9 °C | +1.3 °C | 65 mm | +9 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 Kesennuma?
Kesennuma has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.8 °C and it receives 1,262 mm of precipitation per year.
What is the hottest day ever recorded in Kesennuma?
The hottest day measured in Kesennuma between 1940 and 2025 was 5 August 2015, reaching 34.1 °C.
What is the coldest day in Kesennuma?
The coldest day measured in Kesennuma between 1940 and 2025 was 21 February 1942, at -18.3 °C.
Does it snow in Kesennuma?
Yes. Kesennuma gets on average 61.0 cm of snow per year and has around 90 frost days.
Has the climate of Kesennuma warmed?
Yes: Kesennuma warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Kesennuma?
The wettest day measured in Kesennuma between 1940 and 2025 was 15 September 1947, with 183 mm of rain in 24 hours.
What was the windiest day in Kesennuma?
The windiest day measured in Kesennuma between 1940 and 2025 was 31 March 1979, with winds reaching 57.2 km/h.
What is the warmest month in Kesennuma?
The warmest month in Kesennuma is August (23.0 °C on average); the coldest is January (-0.6 °C).
How much does it rain in Kesennuma?
Kesennuma receives on average 1,262 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Kesennuma?
Kesennuma gets on average 8.4 hours of sunshine per day, roughly 3,066 hours per year over 1940-2025.
What is the biggest single-day snowfall in Kesennuma?
The heaviest 24-hour snowfall measured in Kesennuma between 1940 and 2025 was 18 January 2016, with 36.5 cm.
Are there tropical nights in Kesennuma?
Yes: Kesennuma has on average 35 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Kesennuma?
In Kesennuma, between 1940 and 2025, the highest apparent temperature reached 39.7 °C on 4 August 2021, and the lowest was -23.5 °C on 9 February 1942.
Compare Kesennuma with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Kesennuma