Uozu climate — normals and trends
Uozu (Japan) has a hot-summer humid continental climate (Dfa) under the Köppen-Geiger classification. Its mean annual temperature is 10.5 °C and it receives 2,675 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 (23.4 °C on average) and the coldest is January (-1.5 °C). Rainfall peaks in July.
Uozu averages 103 frost days, 2 hot days (≥ 30 °C) and 234 rainy days per year.
Uozu has warmed by +2.7 °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 122 to 84 per year over the period.
The hottest day of the period reached 32.7 °C (on 10 August 2023) and the coldest -13.0 °C (on 14 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
UozuToyama
- coords
- 36.80°, 137.40°
- period
- 1940–2025 · 86 yrs
Mean daily temperature
10.5°C
Average daily high
13.5°C
Average daily low
7.5°C
Annual rainfall
2,675mm
Sunshine / day
8.7h
Mean relative humidity
79%
Average peak wind
10.8km/h
Seasonal range
24.9°C
Frost days (< 0 °C)
103 d/yr
Hot days (≥ 30 °C)
2 d/yr
Rainy days (≥ 1 mm)
234 d/yr
Annual snowfall
404.6 cm
Average feels-like high
13.0 °C
Average feels-like low
5.9 °C
Average peak gust
36.5 km/h
Tropical nights (≥ 20 °C)
41 d/yr
Solar radiation
14.4 MJ/m²
Has the climate changed?
One stripe per year, 1940 to 2025
+2.7 °C
since 1940
+0.3 °C per decade · r² = 0.65 · 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
32.7 °C
10 August 2023
Coldest day
-13.0 °C
14 February 1942
Wettest day
181 mm
8 July 1964
Windiest day
50.4 km/h
4 September 2018
Strongest gust
160.6 km/h
22 September 1998
Hottest feels-like
39.3 °C
10 August 2023
Coldest feels-like
-17.8 °C
14 February 1942
Snowiest day
35.2 cm
15 February 2014
Sunniest day
14.0 h
29 May 1940
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 | 1.2 °C | +0.4 °C | 205 mm | -22 mm |
| Feb | 0.8 °C | -0.5 °C | 218 mm | +24 mm |
| Mar | 7.4 °C | +2.4 °C | 213 mm | +17 mm |
| Apr | 13.0 °C | +1.4 °C | 129 mm | -41 mm |
| May | 17.8 °C | +0.5 °C | 184 mm | +0 mm |
| Jun | 23.0 °C | +2.1 °C | 262 mm | +5 mm |
| Jul | 27.8 °C | +2.8 °C | 107 mm | -235 mm |
| Aug | 28.0 °C | +1.7 °C | 358 mm | +119 mm |
| Sep | 25.3 °C | +2.9 °C | 302 mm | +45 mm |
| Oct | 17.9 °C | +1.3 °C | 265 mm | +69 mm |
| Nov | 11.3 °C | +0.7 °C | 159 mm | -28 mm |
| Dec | 6.2 °C | +2.0 °C | 277 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 Uozu?
Uozu has a hot-summer humid continental climate (Köppen Dfa). Over 1940-2025, the average annual temperature is 10.5 °C and it receives 2,675 mm of precipitation per year.
What is the hottest day ever recorded in Uozu?
The hottest day measured in Uozu between 1940 and 2025 was 10 August 2023, reaching 32.7 °C.
What is the coldest day in Uozu?
The coldest day measured in Uozu between 1940 and 2025 was 14 February 1942, at -13.0 °C.
Does it snow in Uozu?
Yes. Uozu gets on average 404.6 cm of snow per year and has around 103 frost days.
Has the climate of Uozu warmed?
Yes: Uozu warmed by +2.7 °C between 1940 and 2025, a statistically significant trend.
What is the wettest day in Uozu?
The wettest day measured in Uozu between 1940 and 2025 was 8 July 1964, with 181 mm of rain in 24 hours.
What was the windiest day in Uozu?
The windiest day measured in Uozu between 1940 and 2025 was 4 September 2018, with winds reaching 50.4 km/h.
What is the warmest month in Uozu?
The warmest month in Uozu is August (23.4 °C on average); the coldest is January (-1.5 °C).
How much does it rain in Uozu?
Uozu receives on average 2,675 mm of precipitation per year, spread over about 234 rainy days.
Is it sunny in Uozu?
Uozu 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 Uozu?
The heaviest 24-hour snowfall measured in Uozu between 1940 and 2025 was 15 February 2014, with 35.2 cm.
Are there tropical nights in Uozu?
Yes: Uozu has on average 41 tropical nights per year (temperature staying above 20 °C), over 1940-2025.
What was the most extreme apparent temperature in Uozu?
In Uozu, between 1940 and 2025, the highest apparent temperature reached 39.3 °C on 10 August 2023, and the lowest was -17.8 °C on 14 February 1942.
Compare Uozu with another city
Pick a second city: its normals will be set against these, indicator by indicator.
Nearby cities
The climate around Uozu