Shinshiro climate — normals and trends

Q: What is the climate of Shinshiro?

Shinshiro has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.7 °C and it receives 2,203 mm of precipitation per year.

Q: What is the hottest day ever recorded in Shinshiro?

The hottest day measured in Shinshiro between 1940 and 2025 was 23 July 2018, reaching 37.5 °C.

Q: What is the coldest day in Shinshiro?

The coldest day measured in Shinshiro between 1940 and 2025 was 19 February 1947, at -12.0 °C.

Q: Does it snow in Shinshiro?

Yes. Shinshiro gets on average 9.6 cm of snow per year and has around 60 frost days.

Q: Has the climate of Shinshiro warmed?

Yes: Shinshiro warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.

Q: What is the wettest day in Shinshiro?

The wettest day measured in Shinshiro between 1940 and 2025 was 26 August 1962, with 225 mm of rain in 24 hours.

Q: What was the windiest day in Shinshiro?

The windiest day measured in Shinshiro between 1940 and 2025 was 26 September 1959, with winds reaching 74.3 km/h.

Q: What is the warmest month in Shinshiro?

The warmest month in Shinshiro is August (25.1 °C on average); the coldest is January (2.5 °C).

Q: How much does it rain in Shinshiro?

Shinshiro receives on average 2,203 mm of precipitation per year, spread over about 160 rainy days.

Q: Is it sunny in Shinshiro?

Shinshiro gets on average 8.7 hours of sunshine per day, roughly 3,175 hours per year over 1940-2025.

Shinshiro (Japan) has a humid subtropical climate (Cfa) under the Köppen-Geiger classification. Its mean annual temperature is 13.7 °C and it receives 2,203 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 (25.1 °C on average) and the coldest is January (2.5 °C). Rainfall peaks in July.

Shinshiro averages 60 frost days, 26 hot days (≥ 30 °C) and 160 rainy days per year.

Shinshiro has warmed by +2.9 °C between 1940 and 2025, or +0.34 °C per decade. This trend is statistically significant.

The number of frost days there went from about 90 to 30 per year over the period.

The hottest day of the period reached 37.5 °C (on 23 July 2018) and the coldest -12.0 °C (on 19 February 1947).

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

ShinshiroAichi

coords: 34.90°, 137.50°
period: 1940–2025 · 86 yrs

CfaHumid subtropicalWarmest monthAugustColdest monthJanuaryWettest monthJulyDriest monthJanuary

Mean daily temperature

13.7°C

Average daily high

18.2°C

Average daily low

9.9°C

Annual rainfall

2,203mm

Sunshine / day

8.7h

Mean relative humidity

74%

Average peak wind

15.0km/h

Seasonal range

22.6°C

Frost days (< 0 °C)

60 d/yr

Hot days (≥ 30 °C)

26 d/yr

Rainy days (≥ 1 mm)

160 d/yr

Annual snowfall

9.6 cm

Average feels-like high

17.5 °C

Average feels-like low

8.6 °C

Average peak gust

40.9 km/h

Tropical nights (≥ 20 °C)

62 d/yr

Solar radiation

14.6 MJ/m²

Has the climate changed?

One stripe per year, 1940 to 2025

+2.9 °C

since 1940

+0.3 °C per decade · r² = 0.69 · p = < 0.001

19402025

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

37.5 °C

23 July 2018

Coldest day

-12.0 °C

19 February 1947

Wettest day

225 mm

26 August 1962

Windiest day

74.3 km/h

26 September 1959

Strongest gust

222.5 km/h

26 September 1959

Hottest feels-like

42.7 °C

17 August 2024

Coldest feels-like

-17.2 °C

19 February 1947

Snowiest day

20.1 cm

15 February 1968

Sunniest day

14.0 h

10 June 1940

Year	Hottest day	Coldest day	Annual mean	Rainfall	Hot days	Frost days
2025	35.9 °C2 August 2025	-4.4 °C23 February 2025	15.1 °C	1,926 mm	72	48
2024	36.2 °C31 July 2024	-2.7 °C20 December 2024	16.2 °C	2,792 mm	66	35
2023	35.9 °C18 July 2023	-4.9 °C25 January 2023	15.8 °C	2,093 mm	64	35
2022	36.2 °C30 June 2022	-2.6 °C2 January 2022	15.3 °C	1,978 mm	48	42
2021	35.5 °C8 August 2021	-4.2 °C27 December 2021	15.4 °C	2,709 mm	37	28
2020	37.4 °C16 August 2020	-3.1 °C7 February 2020	15.4 °C	2,759 mm	41	17
2019	34.4 °C1 August 2019	-2.9 °C10 January 2019	15.5 °C	2,320 mm	44	21
2018	37.5 °C23 July 2018	-4.4 °C25 January 2018	15.5 °C	2,546 mm	43	41
2017	33.6 °C9 August 2017	-4.2 °C15 January 2017	14.5 °C	1,794 mm	40	39
2016	36.3 °C8 August 2016	-4.7 °C25 January 2016	15.5 °C	2,410 mm	42	27
2015	35.6 °C1 August 2015	-2.9 °C29 January 2015	15.2 °C	2,475 mm	34	31
2014	34.7 °C25 July 2014	-7.0 °C19 December 2014	14.2 °C	2,146 mm	23	48
2013	36.9 °C11 August 2013	-4.0 °C17 February 2013	14.5 °C	1,834 mm	46	45
2012	34.6 °C26 July 2012	-8.4 °C3 February 2012	13.9 °C	1,999 mm	29	59
2011	33.8 °C10 August 2011	-4.5 °C27 December 2011	14.3 °C	2,541 mm	38	56
2010	35.1 °C17 August 2010	-3.0 °C14 January 2010	14.8 °C	2,590 mm	45	35
2009	34.1 °C8 September 2009	-2.3 °C25 January 2009	14.7 °C	2,193 mm	26	27
2008	35.0 °C4 August 2008	-3.5 °C24 February 2008	14.4 °C	1,878 mm	41	40
2007	35.3 °C17 August 2007	-2.4 °C7 March 2007	14.7 °C	1,702 mm	31	17
2006	34.5 °C5 August 2006	-4.5 °C5 February 2006	14.5 °C	2,139 mm	30	42
2005	33.3 °C18 July 2005	-4.2 °C2 February 2005	14.2 °C	1,470 mm	40	58
2004	34.1 °C15 July 2004	-4.0 °C23 January 2004	15.1 °C	2,571 mm	36	42
2003	34.0 °C3 September 2003	-5.4 °C29 January 2003	14.1 °C	2,549 mm	24	49
2002	34.8 °C6 August 2002	-3.7 °C3 January 2002	14.3 °C	1,780 mm	34	38
2001	35.4 °C24 July 2001	-7.9 °C30 January 2001	14.1 °C	1,789 mm	29	57
2000	34.0 °C23 July 2000	-4.4 °C25 February 2000	14.3 °C	2,151 mm	33	55
1999	32.5 °C23 August 1999	-5.8 °C4 February 1999	14.4 °C	2,116 mm	22	51
1998	34.2 °C3 July 1998	-5.4 °C25 January 1998	15.1 °C	2,663 mm	28	36
1997	33.6 °C6 July 1997	-6.0 °C22 January 1997	14.1 °C	2,115 mm	31	60
1996	34.0 °C18 July 1996	-11.8 °C20 February 1996	13.3 °C	1,969 mm	26	69
1995	37.1 °C19 August 1995	-3.8 °C31 January 1995	13.6 °C	1,767 mm	42	70
1994	34.8 °C15 July 1994	-4.2 °C31 January 1994	14.8 °C	1,728 mm	39	53
1993	31.0 °C31 July 1993	-3.0 °C15 February 1993	13.5 °C	2,430 mm	5	41
1992	34.4 °C27 July 1992	-4.3 °C2 February 1992	14.1 °C	2,078 mm	27	35
1991	34.3 °C1 August 1991	-4.8 °C25 February 1991	14.5 °C	2,754 mm	25	44
1990	34.6 °C4 August 1990	-4.2 °C25 January 1990	14.8 °C	2,319 mm	31	28
1989	32.2 °C9 August 1989	-4.1 °C29 January 1989	14.3 °C	2,317 mm	16	29
1988	32.8 °C22 August 1988	-4.5 °C4 February 1988	13.3 °C	2,115 mm	15	56
1987	33.3 °C29 July 1987	-5.6 °C14 January 1987	14.2 °C	2,026 mm	29	44
1986	32.3 °C30 July 1986	-5.2 °C17 February 1986	13.2 °C	2,010 mm	20	62
1985	32.9 °C26 July 1985	-5.9 °C31 January 1985	13.6 °C	2,214 mm	23	61
1984	33.0 °C7 August 1984	-9.3 °C8 February 1984	13.0 °C	1,469 mm	33	81
1983	33.5 °C14 August 1983	-4.5 °C23 January 1983	13.7 °C	2,300 mm	30	63
1982	30.1 °C14 August 1982	-5.3 °C30 January 1982	13.6 °C	2,453 mm	4	54
1981	32.8 °C18 July 1981	-7.8 °C28 February 1981	12.8 °C	1,971 mm	19	75
1980	31.8 °C22 July 1980	-10.5 °C17 February 1980	12.9 °C	2,781 mm	6	78
1979	32.7 °C31 July 1979	-4.6 °C20 January 1979	14.1 °C	2,575 mm	22	60
1978	33.7 °C4 July 1978	-10.7 °C2 February 1978	13.7 °C	2,141 mm	35	60
1977	33.6 °C4 August 1977	-6.8 °C17 February 1977	13.9 °C	2,389 mm	22	61
1976	33.2 °C22 August 1976	-5.0 °C24 January 1976	13.1 °C	2,705 mm	10	55
1975	32.7 °C18 July 1975	-7.7 °C24 February 1975	13.5 °C	2,855 mm	18	69
1974	32.1 °C30 August 1974	-5.0 °C12 February 1974	13.2 °C	2,689 mm	18	61
1973	34.3 °C10 August 1973	-4.3 °C25 February 1973	13.5 °C	2,371 mm	29	72
1972	33.6 °C8 August 1972	-3.0 °C11 February 1972	13.9 °C	3,323 mm	25	50
1971	32.4 °C8 August 1971	-4.9 °C2 February 1971	13.3 °C	2,572 mm	20	65
1970	33.9 °C5 August 1970	-4.9 °C10 February 1970	13.0 °C	2,278 mm	21	84
1969	33.8 °C13 August 1969	-5.0 °C6 February 1969	13.3 °C	2,452 mm	19	66
1968	33.2 °C22 July 1968	-10.4 °C22 February 1968	13.0 °C	2,425 mm	15	73
1967	33.2 °C5 August 1967	-7.2 °C17 January 1967	13.5 °C	2,224 mm	28	82
1966	32.1 °C8 August 1966	-6.8 °C22 January 1966	12.5 °C	2,433 mm	11	85
1965	31.2 °C28 July 1965	-5.2 °C17 January 1965	12.0 °C	2,074 mm	13	105
1964	33.2 °C10 August 1964	-3.9 °C19 February 1964	14.1 °C	2,036 mm	40	55
1963	34.6 °C18 July 1963	-6.9 °C26 January 1963	13.3 °C	2,006 mm	18	81
1962	34.3 °C20 August 1962	-3.7 °C17 February 1962	13.5 °C	2,516 mm	27	70
1961	33.7 °C9 July 1961	-4.3 °C2 February 1961	14.4 °C	2,364 mm	34	71
1960	34.6 °C1 August 1960	-5.5 °C25 January 1960	14.0 °C	2,015 mm	30	50
1959	34.6 °C1 August 1959	-5.6 °C19 January 1959	14.4 °C	2,598 mm	33	47
1958	33.7 °C1 August 1958	-5.2 °C4 January 1958	13.8 °C	2,253 mm	13	49
1957	33.4 °C31 July 1957	-4.9 °C13 January 1957	13.3 °C	2,532 mm	12	69
1956	35.1 °C2 August 1956	-4.7 °C3 February 1956	13.3 °C	2,495 mm	23	81
1955	34.1 °C8 August 1955	-5.8 °C12 February 1955	14.0 °C	2,258 mm	31	54
1954	34.1 °C9 August 1954	-4.5 °C31 January 1954	13.7 °C	2,262 mm	21	57
1953	34.1 °C21 August 1953	-10.3 °C23 February 1953	13.4 °C	2,598 mm	22	62
1952	32.8 °C2 August 1952	-8.4 °C6 February 1952	12.4 °C	2,047 mm	12	94
1951	34.3 °C28 July 1951	-10.2 °C16 February 1951	12.3 °C	2,042 mm	16	86
1950	31.7 °C8 July 1950	-5.9 °C7 January 1950	12.6 °C	1,966 mm	4	93
1949	31.2 °C6 August 1949	-5.0 °C30 December 1949	12.2 °C	1,815 mm	6	88
1948	30.3 °C26 July 1948	-4.4 °C4 January 1948	12.8 °C	2,000 mm	1	82
1947	33.0 °C13 August 1947	-12.0 °C19 February 1947	11.5 °C	1,681 mm	22	108
1946	34.6 °C17 July 1946	-6.1 °C11 March 1946	12.7 °C	1,574 mm	16	95
1945	30.9 °C9 August 1945	-9.9 °C1 February 1945	11.8 °C	2,589 mm	7	103
1944	31.0 °C2 September 1944	-5.9 °C2 February 1944	12.4 °C	1,566 mm	3	104
1943	30.5 °C15 August 1943	-5.7 °C13 January 1943	12.1 °C	1,219 mm	3	100
1942	33.2 °C4 August 1942	-11.0 °C14 February 1942	12.4 °C	1,276 mm	22	93
1941	31.7 °C18 August 1941	-7.2 °C1 February 1941	12.5 °C	2,095 mm	4	86
1940	31.1 °C24 July 1940	-9.3 °C9 February 1940	11.8 °C	1,451 mm	5	102

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?

Year

Across the whole year

Average daily high

19.8 °C

+1.6 °C

Hot days (≥ 30 °C)

72 d/yr

+46

Frost days (< 0 °C)

48 d/yr

-12

Annual rainfall

1926 mm

-277 mm

Month by month

	High	vs. normal	Precipitation	vs. normal
Jan	8.1 °C	+1.2 °C	37 mm	-23 mm
Feb	7.1 °C	-0.9 °C	36 mm	-48 mm
Mar	13.9 °C	+2.1 °C	168 mm	+17 mm
Apr	19.1 °C	+1.9 °C	130 mm	-56 mm
May	22.1 °C	+0.6 °C	262 mm	+52 mm
Jun	27.0 °C	+2.7 °C	330 mm	+25 mm
Jul	31.0 °C	+2.9 °C	193 mm	-131 mm
Aug	32.1 °C	+2.8 °C	192 mm	-52 mm
Sep	28.8 °C	+2.9 °C	282 mm	+14 mm
Oct	21.8 °C	+1.3 °C	197 mm	+5 mm
Nov	15.4 °C	+0.3 °C	39 mm	-75 mm
Dec	10.9 °C	+1.4 °C	60 mm	-6 mm

The year's extremes

Hottest day

35.9 °C

2 Aug 2025

Coldest day

-4.4 °C

23 Feb 2025

Wettest day

90.6 mm

5 Sep 2025

Windiest day

32.8 km/h

13 Feb 2025

Strongest gust

82.4 km/h

19 Mar 2025

Hottest feels-like

42.7 °C

2 Aug 2025

Coldest feels-like

-9.0 °C

8 Feb 2025

Snowiest day

2.5 cm

19 Mar 2025

Sunniest day

14.0 h

13 Jun 2025

What was the weather like that day?

Your birthday, a wedding, a memorable trip: discover the actual weather for any date since 1940.

Date

Frequently asked questions

What is the climate of Shinshiro?

Shinshiro has a humid subtropical climate (Köppen Cfa). Over 1940-2025, the average annual temperature is 13.7 °C and it receives 2,203 mm of precipitation per year.

What is the hottest day ever recorded in Shinshiro?

The hottest day measured in Shinshiro between 1940 and 2025 was 23 July 2018, reaching 37.5 °C.

What is the coldest day in Shinshiro?

The coldest day measured in Shinshiro between 1940 and 2025 was 19 February 1947, at -12.0 °C.

Does it snow in Shinshiro?

Yes. Shinshiro gets on average 9.6 cm of snow per year and has around 60 frost days.

Has the climate of Shinshiro warmed?

Yes: Shinshiro warmed by +2.9 °C between 1940 and 2025, a statistically significant trend.

What is the wettest day in Shinshiro?

The wettest day measured in Shinshiro between 1940 and 2025 was 26 August 1962, with 225 mm of rain in 24 hours.

What was the windiest day in Shinshiro?

The windiest day measured in Shinshiro between 1940 and 2025 was 26 September 1959, with winds reaching 74.3 km/h.

What is the warmest month in Shinshiro?

The warmest month in Shinshiro is August (25.1 °C on average); the coldest is January (2.5 °C).

How much does it rain in Shinshiro?

Shinshiro receives on average 2,203 mm of precipitation per year, spread over about 160 rainy days.

Is it sunny in Shinshiro?

Shinshiro 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 Shinshiro?

The heaviest 24-hour snowfall measured in Shinshiro between 1940 and 2025 was 15 February 1968, with 20.1 cm.

Are there tropical nights in Shinshiro?

Yes: Shinshiro has on average 62 tropical nights per year (temperature staying above 20 °C), over 1940-2025.

What was the most extreme apparent temperature in Shinshiro?

In Shinshiro, between 1940 and 2025, the highest apparent temperature reached 42.7 °C on 17 August 2024, and the lowest was -17.2 °C on 19 February 1947.

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