Noshiro climate — normals and trends
Noshiro (Japan) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 11.0 °C and it receives 1,676 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 (24.2 °C on average) and the coldest is February (-0.1 °C). Rainfall peaks in August.
Noshiro averages 68 frost days, 3 hot days (≥ 30 °C) and 199 rainy days per year.
Noshiro has warmed by +2.5 °C between 1940 and 2025, or +0.29 °C per decade. This trend is statistically significant.
The number of frost days there went from about 94 to 42 per year over the period.
The hottest day of the period reached 34.5 °C (on 9 August 2023) and the coldest -12.0 °C (on 12 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
NoshiroAkita
- coords
- 40.21°, 140.03°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
11.0°C
Average daily high
13.3°C
Average daily low
8.8°C
Annual rainfall
1,676mm
Sunshine / day
8.0h
Mean relative humidity
78%
Average peak wind
19.0km/h
Seasonal range
24.3°C
Frost days (< 0 °C)
68 d/yr
Hot days (≥ 30 °C)
3 d/yr
Rainy days (≥ 1 mm)
199 d/yr
Annual snowfall
184.4 cm
Average feels-like high
12.0 °C
Average feels-like low
6.5 °C
Average peak gust
39.1 km/h
Tropical nights (≥ 20 °C)
48 d/yr
Solar radiation
13.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.5 °C
since 1940
+0.3 °C per decade · r² = 0.63 · 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
34.5 °C
9 August 2023
Coldest day
-12.0 °C
12 February 1942
Wettest day
155 mm
26 August 1979
Windiest day
68.2 km/h
28 September 1991
Strongest gust
150.8 km/h
5 September 2018
Hottest feels-like
40.4 °C
9 August 2023
Coldest feels-like
-17.2 °C
14 January 1967
Snowiest day
21.5 cm
29 March 1966
Sunniest day
14.6 h
10 June 1989
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 | 4.1 °C | +2.1 °C | 125 mm | +15 mm |
| Feb | 3.1 °C | +1.3 °C | 110 mm | +22 mm |
| Mar | 6.6 °C | +1.7 °C | 122 mm | +19 mm |
| Apr | 11.6 °C | +1.0 °C | 187 mm | +78 mm |
| May | 16.6 °C | +1.1 °C | 120 mm | +14 mm |
| Jun | 22.2 °C | +2.4 °C | 103 mm | -9 mm |
| Jul | 28.2 °C | +4.2 °C | 58 mm | -149 mm |
| Aug | 28.5 °C | +2.1 °C | 305 mm | +96 mm |
| Sep | 25.4 °C | +2.7 °C | 319 mm | +125 mm |
| Oct | 17.5 °C | +0.7 °C | 97 mm | -53 mm |
| Nov | 11.4 °C | +0.9 °C | 229 mm | +84 mm |
| Dec | 6.2 °C | +1.3 °C | 243 mm | +99 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 Noshiro?
Noshiro has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 11.0 °C and it receives 1,676 mm of precipitation per year.
What is the hottest day ever recorded in Noshiro?
The hottest day measured in Noshiro between 1940 and 2025 was 9 August 2023, reaching 34.5 °C.
What is the coldest day in Noshiro?
The coldest day measured in Noshiro between 1940 and 2025 was 12 February 1942, at -12.0 °C.
Does it snow in Noshiro?
Yes. Noshiro gets on average 184.4 cm of snow per year and has around 68 frost days.
Has the climate of Noshiro warmed?
Yes: Noshiro warmed by +2.5 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Noshiro?
The wettest day measured in Noshiro between 1940 and 2025 was 26 August 1979, with 155 mm of rain in 24 hours.
What was the windiest day in Noshiro?
The windiest day measured in Noshiro between 1940 and 2025 was 28 September 1991, with winds reaching 68.2 km/h.
What is the warmest month in Noshiro?
The warmest month in Noshiro is August (24.2 °C on average); the coldest is February (-0.1 °C).
How much does it rain in Noshiro?
Noshiro receives on average 1,676 mm of precipitation per year, spread over about 199 rainy days.
Is it sunny in Noshiro?
Noshiro gets on average 8.0 hours of sunshine per day, roughly 2,920 hours per year over 1940-2025.
What is the biggest single-day snowfall in Noshiro?
The heaviest 24-hour snowfall measured in Noshiro between 1940 and 2025 was 29 March 1966, with 21.5 cm.
Are there tropical nights in Noshiro?
Yes: Noshiro has on average 48 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Noshiro?
In Noshiro, between 1940 and 2025, the highest apparent temperature reached 40.4 °C on 9 August 2023, and the lowest was -17.2 °C on 14 January 1967.
Compare Noshiro with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Noshiro