Noboribetsu climate — normals and trends
Noboribetsu (Japan) has a warm-summer humid continental climate (Dfb) under the Köppen-Geiger classification. Its mean annual temperature is 6.7 °C and it receives 1,240 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 (20.0 °C on average) and the coldest is January (-5.3 °C). Rainfall peaks in September.
Noboribetsu averages 138 frost days, 0 hot days (≥ 30 °C) and 136 rainy days per year.
Noboribetsu has warmed by +2.6 °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 157 to 119 per year over the period.
The hottest day of the period reached 28.8 °C (on 26 August 2023) and the coldest -16.3 °C (on 16 January 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
NoboribetsuHokkaido
- coords
- 42.45°, 141.18°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
6.7°C
Average daily high
9.2°C
Average daily low
4.1°C
Annual rainfall
1,240mm
Sunshine / day
8.7h
Mean relative humidity
79%
Average peak wind
19.4km/h
Seasonal range
25.3°C
Frost days (< 0 °C)
138 d/yr
Hot days (≥ 30 °C)
0 d/yr
Rainy days (≥ 1 mm)
136 d/yr
Annual snowfall
140.0 cm
Average feels-like high
6.8 °C
Average feels-like low
1.0 °C
Average peak gust
41.1 km/h
Tropical nights (≥ 20 °C)
9 d/yr
Solar radiation
13.7 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.6 °C
since 1940
+0.3 °C per decade · r² = 0.64 · 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
28.8 °C
26 August 2023
Coldest day
-16.3 °C
16 January 1967
Wettest day
176 mm
23 August 1981
Windiest day
65.3 km/h
30 August 2016
Strongest gust
158.4 km/h
5 September 2018
Hottest feels-like
35.2 °C
24 August 2023
Coldest feels-like
-23.1 °C
12 January 1961
Snowiest day
39.4 cm
21 March 1975
Sunniest day
15.0 h
15 June 1952
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 | 0.2 °C | +2.9 °C | 40 mm | -9 mm |
| Feb | 0.8 °C | +2.8 °C | 45 mm | -2 mm |
| Mar | 3.3 °C | +1.9 °C | 83 mm | +15 mm |
| Apr | 8.7 °C | +2.1 °C | 122 mm | +30 mm |
| May | 14.1 °C | +2.4 °C | 80 mm | -27 mm |
| Jun | 19.8 °C | +4.3 °C | 120 mm | +15 mm |
| Jul | 24.3 °C | +4.7 °C | 86 mm | -51 mm |
| Aug | 25.2 °C | +3.2 °C | 183 mm | -0 mm |
| Sep | 22.3 °C | +2.9 °C | 314 mm | +131 mm |
| Oct | 13.9 °C | +0.7 °C | 82 mm | -42 mm |
| Nov | 7.9 °C | +2.2 °C | 128 mm | +42 mm |
| Dec | 1.9 °C | +2.1 °C | 108 mm | +49 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 Noboribetsu?
Noboribetsu has a warm-summer humid continental climate (Köppen Dfb). Over 1940-2025, the average annual temperature is 6.7 °C and it receives 1,240 mm of precipitation per year.
What is the hottest day ever recorded in Noboribetsu?
The hottest day measured in Noboribetsu between 1940 and 2025 was 26 August 2023, reaching 28.8 °C.
What is the coldest day in Noboribetsu?
The coldest day measured in Noboribetsu between 1940 and 2025 was 16 January 1967, at -16.3 °C.
Does it snow in Noboribetsu?
Yes. Noboribetsu gets on average 140.0 cm of snow per year and has around 138 frost days.
Has the climate of Noboribetsu warmed?
Yes: Noboribetsu warmed by +2.6 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Noboribetsu?
The wettest day measured in Noboribetsu between 1940 and 2025 was 23 August 1981, with 176 mm of rain in 24 hours.
What was the windiest day in Noboribetsu?
The windiest day measured in Noboribetsu between 1940 and 2025 was 30 August 2016, with winds reaching 65.3 km/h.
What is the warmest month in Noboribetsu?
The warmest month in Noboribetsu is August (20.0 °C on average); the coldest is January (-5.3 °C).
How much does it rain in Noboribetsu?
Noboribetsu receives on average 1,240 mm of precipitation per year, spread over about 136 rainy days.
Is it sunny in Noboribetsu?
Noboribetsu gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.
What is the biggest single-day snowfall in Noboribetsu?
The heaviest 24-hour snowfall measured in Noboribetsu between 1940 and 2025 was 21 March 1975, with 39.4 cm.
Are there tropical nights in Noboribetsu?
Yes: Noboribetsu has on average 9 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Noboribetsu?
In Noboribetsu, between 1940 and 2025, the highest apparent temperature reached 35.2 °C on 24 August 2023, and the lowest was -23.1 °C on 12 January 1961.
Compare Noboribetsu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Noboribetsu