Shirakawa Weather Records (JA000047597)

Record envelope, standing records and threshold days for Shirakawa (JA000047597), Japan, with 76 years of record.

Key Facts for Shirakawa

Shirakawa (JA000047597) is a weather station in Japan at 37.13 latitude and 140.22 longitude, 357 m (1,171 ft) above sea level.
The station reports from 1951 to 2026, 76 years of record.
1,464 records set at Shirakawa still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Shirakawa set a daily record precipitation of 231.5 mm (9.1 in) on 28 September 2026 (provisional).

Provisional Records

Records set in the last 60 days are provisional until they clear the revision window.

About the Station

Location: Japan, 37.13 latitude, 140.22 longitude.
Elevation: 357 m (1,171 ft).
Period of record: 1951 to 2026, 76 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

6 days at or beyond a record

The band shows the record high and record low for each calendar day at Shirakawa. The lines show the 2026 daily maximum and minimum. 6 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Shirakawa, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	17.1 C (62.8 F)	-13.4 C (7.9 F)	11.7 C (53.1 F)	-7.1 C (19.2 F)
Feb	19.9 C (67.8 F)	-13.6 C (7.5 F)	16.6 C (61.9 F)	-5.6 C (21.9 F)
Mar	23.5 C (74.3 F)	-12.3 C (9.9 F)	16.2 C (61.2 F)	-4.0 C (24.8 F)
Apr	28.9 C (84.0 F)	-6.0 C (21.2 F)	23.9 C (75.0 F)	2.5 C (36.5 F)
May	32.9 C (91.2 F)	-2.3 C (27.9 F)	29.9 C (85.8 F)	6.2 C (43.2 F)
Jun	34.1 C (93.4 F)	5.1 C (41.2 F)	31.2 C (88.2 F)	11.4 C (52.5 F)
Jul	36.0 C (96.8 F)	7.2 C (45.0 F)	35.0 C (95.0 F)	17.4 C (63.3 F)
Aug	35.9 C (96.6 F)	11.1 C (52.0 F)	33.9 C (93.0 F)	16.8 C (62.2 F)
Sep	33.5 C (92.3 F)	3.9 C (39.0 F)	28.9 C (84.0 F)	13.9 C (57.0 F)
Oct	28.7 C (83.7 F)	-1.9 C (28.6 F)	26.4 C (79.5 F)	9.6 C (49.3 F)
Nov	23.3 C (73.9 F)	-6.8 C (19.8 F)	n/a	n/a
Dec	20.7 C (69.3 F)	-12.4 C (9.7 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Shirakawa still stand. 2025 holds the most, with 46.

Standing records at Shirakawa by the year they were set
Year set	Standing records
1951	25
1952	20
1953	27
1954	24
1955	24
1956	28
1957	24
1958	20
1959	17
1960	22
1961	27
1962	15
1963	26
1964	12
1965	22
1966	29
1967	17
1968	14
1969	41
1970	38
1971	28
1972	15
1973	18
1974	18
1975	12
1976	34
1977	27
1978	23
1979	23
1980	22
1981	24
1982	18
1983	20
1984	28
1985	29
1986	16
1987	28
1988	21
1989	21
1992	9
1993	23
1994	8
1995	8
1996	14
1997	11
1998	17
1999	8
2000	6
2001	7
2002	18
2003	12
2004	8
2005	9
2006	6
2007	10
2008	8
2009	5
2010	21
2011	17
2012	20
2013	19
2014	12
2015	12
2016	15
2017	11
2018	31
2019	20
2020	28
2021	20
2022	21
2023	27
2024	32
2025	46
2026	28

All-Time Record Progression

8 new records

8 all-time records were set at Shirakawa between 7 August 1994 and 7 August 2026. Each dot is a new record.

When Shirakawa set new all-time records
Date	Kind	Detail
1994-08-07	Record high maximum temperature	Record high maximum temperature 35.1 C (95.2 F)
1995-07-24	Record high maximum temperature	Record high maximum temperature 35.2 C (95.4 F)
2011-09-21	Record daily precipitation	Record daily precipitation 229.1 mm (9.0 in)
2012-07-17	Record high maximum temperature	Record high maximum temperature 36.0 C (96.8 F)
2019-10-12	Record daily precipitation	Record daily precipitation 301.0 mm (11.9 in)
2026-07-05	Record daily precipitation	Record daily precipitation 312.0 mm (12.3 in)
2026-07-15	Record high minimum temperature	Record high minimum temperature 25.1 C (77.2 F)
2026-08-07	Record high minimum temperature	Record high minimum temperature 25.2 C (77.4 F)

Wettest Day of Each Month

Jul: 312.0 mm (12.3 in)

The wettest day on record for each calendar month at Shirakawa. The most was 312.0 mm (12.3 in) on 5 July 2026.

Record daily precipitation for each month at Shirakawa
Month	Record daily precipitation (mm)	Date
Jan	56.9 mm (2.2 in)	31 January 2009
Feb	64.0 mm (2.5 in)	15 February 2014
Mar	77.0 mm (3.0 in)	9 March 2018
Apr	67.5 mm (2.7 in)	15 April 1982
May	114.0 mm (4.5 in)	24 May 1992
Jun	177.5 mm (7.0 in)	27 June 1961
Jul	312.0 mm (12.3 in)	5 July 2026
Aug	162.0 mm (6.4 in)	31 August 1971
Sep	229.1 mm (9.0 in)	21 September 2011
Oct	301.0 mm (11.9 in)	12 October 2019
Nov	73.0 mm (2.9 in)	20 November 1970
Dec	77.0 mm (3.0 in)	27 December 2006

Period of Record Coverage

1951 to 2026

76 years of record at Shirakawa, 1951 to 2026. 10 years have data for under 90 percent of days and are left out of rankings: 1990, 1991, 1992, 1997, 1999, 2001, 2020, 2023 and others.

Days with data per year at Shirakawa
Year	Days with data	Share of year	Complete
1951	365	100%	Yes
1952	366	100%	Yes
1953	364	100%	Yes
1954	360	99%	Yes
1955	359	98%	Yes
1956	365	100%	Yes
1957	364	100%	Yes
1958	362	99%	Yes
1959	363	99%	Yes
1960	364	99%	Yes
1961	360	99%	Yes
1962	362	99%	Yes
1963	362	99%	Yes
1964	366	100%	Yes
1965	365	100%	Yes
1966	365	100%	Yes
1967	365	100%	Yes
1968	366	100%	Yes
1969	365	100%	Yes
1970	365	100%	Yes
1971	365	100%	Yes
1972	366	100%	Yes
1973	365	100%	Yes
1974	365	100%	Yes
1975	365	100%	Yes
1976	366	100%	Yes
1977	365	100%	Yes
1978	365	100%	Yes
1979	365	100%	Yes
1980	366	100%	Yes
1981	365	100%	Yes
1982	365	100%	Yes
1983	365	100%	Yes
1984	366	100%	Yes
1985	365	100%	Yes
1986	365	100%	Yes
1987	365	100%	Yes
1988	366	100%	Yes
1989	365	100%	Yes
1990	5	1%	No
1991	3	1%	No
1992	286	78%	No
1993	343	94%	Yes
1994	340	93%	Yes
1995	335	92%	Yes
1996	345	94%	Yes
1997	322	88%	No
1998	333	91%	Yes
1999	320	88%	No
2000	337	92%	Yes
2001	291	80%	No
2002	334	92%	Yes
2003	332	91%	Yes
2004	331	90%	Yes
2005	345	95%	Yes
2006	338	93%	Yes
2007	347	95%	Yes
2008	354	97%	Yes
2009	350	96%	Yes
2010	342	94%	Yes
2011	353	97%	Yes
2012	347	95%	Yes
2013	353	97%	Yes
2014	342	94%	Yes
2015	341	93%	Yes
2016	341	93%	Yes
2017	344	94%	Yes
2018	348	95%	Yes
2019	340	93%	Yes
2020	318	87%	No
2021	334	92%	Yes
2022	339	93%	Yes
2023	255	70%	No
2024	292	80%	No
2025	356	98%	Yes
2026	273	75%	No

Latest Records

Latest records at Shirakawa
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 September 2026	Shirakawa, JP	daily rain (Provisional)	231.5 mm (9.1 in)	143.5 mm (5.6 in)	43 years	59 of 100 (Notable)
15 September 2026	Shirakawa, JP	daily rain (Provisional)	186.0 mm (7.3 in)	115.5 mm (4.5 in)	64 years	66 of 100 (Major)
14 September 2026	Shirakawa, JP	daily rain (Provisional)	270.5 mm (10.6 in)	212.6 mm (8.4 in)	32 years	56 of 100 (Notable)
9 September 2026	Shirakawa, JP	all-time rain (Provisional)	393.0 mm (15.5 in)	81.0 mm (3.2 in)	0 years	66 of 100 (Major)
3 September 2026	Shirakawa, JP	daily rain (Provisional)	110.5 mm (4.4 in)	71.5 mm (2.8 in)	48 years	55 of 100 (Notable)
2 September 2026	Shirakawa, JP	daily high min (Provisional)	23.1 C (73.6 F)	0.2 C (0.4 F)	56 years	23 of 100 (Routine)
28 August 2026	Shirakawa, JP	daily rain (Provisional)	89.5 mm (3.5 in)	20.4 mm (0.8 in)	28 years	25 of 100 (Routine)
25 August 2026	Shirakawa, JP	daily high max (Provisional)	33.9 C (93.0 F)	0.2 C (0.4 F)	31 years	16 of 100 (Routine)
7 August 2026	Shirakawa, JP	all-time high min	25.2 C (77.4 F)	0.1 C (0.2 F)	0 years	27 of 100 (Routine)
6 August 2026	Shirakawa, JP	all-time high min (Tie)	25.1 C (77.2 F)	tie	0 years	6 of 100 (Routine)
24 July 2026	Shirakawa, JP	daily high min	23.1 C (73.6 F)	0.2 C (0.4 F)	0 years	7 of 100 (Routine)
23 July 2026	Shirakawa, JP	daily high min	23.8 C (74.8 F)	0.7 C (1.3 F)	16 years	13 of 100 (Routine)
22 July 2026	Shirakawa, JP	daily high min	24.8 C (76.6 F)	1.9 C (3.4 F)	48 years	28 of 100 (Routine)
22 July 2026	Shirakawa, JP	daily high max	35.0 C (95.0 F)	0.3 C (0.5 F)	8 years	9 of 100 (Routine)
18 July 2026	Shirakawa, JP	daily rain	106.5 mm (4.2 in)	15.6 mm (0.6 in)	12 years	20 of 100 (Routine)
17 July 2026	Shirakawa, JP	daily high min	22.6 C (72.7 F)	0.1 C (0.2 F)	15 years	11 of 100 (Routine)
16 July 2026	Shirakawa, JP	daily high min	24.1 C (75.4 F)	0.4 C (0.7 F)	24 years	15 of 100 (Routine)
15 July 2026	Shirakawa, JP	all-time high min	25.1 C (77.2 F)	0.1 C (0.2 F)	73 years	49 of 100 (Notable)
6 July 2026	Shirakawa, JP	daily rain	103.0 mm (4.1 in)	62.1 mm (2.4 in)	17 years	52 of 100 (Notable)
5 July 2026	Shirakawa, JP	all-time rain	312.0 mm (12.3 in)	11.0 mm (0.4 in)	6 years	36 of 100 (Notable)

Climate Trend

40 complete years, 1951 to 2025

One stripe for each of 40 complete years at Shirakawa, 1951 to 2025. Blue stripes are years cooler than the station's own mean of 11.4 C (52.5 F); red stripes are warmer. The coolest year was 1984, at 10.2 C (50.4 F), and the warmest was 2025, at 13.7 C (56.6 F). The strongest colour marks a difference of 2.3 C (4.1 F).

Annual mean temperature at Shirakawa as warming stripes, 1951 to 2025
Year	Annual mean temperature	Difference from the station mean
1951	11.4 C	-0.05 C
1952	11.0 C	-0.40 C
1953	11.0 C	-0.40 C
1954	11.3 C	-0.13 C
1955	12.0 C	+0.62 C
1956	11.1 C	-0.29 C
1957	11.4 C	+0.02 C
1958	11.7 C	+0.32 C
1959	12.2 C	+0.78 C
1960	12.0 C	+0.58 C
1961	12.5 C	+1.06 C
1962	11.9 C	+0.53 C
1963	11.6 C	+0.23 C
1964	11.4 C	+0.02 C
1965	10.8 C	-0.64 C
1966	11.5 C	+0.08 C
1967	11.4 C	+0.02 C
1968	11.4 C	-0.02 C
1969	11.2 C	-0.24 C
1970	10.8 C	-0.56 C
1971	10.9 C	-0.53 C
1972	11.8 C	+0.35 C
1973	11.6 C	+0.16 C
1974	10.7 C	-0.67 C
1975	11.2 C	-0.18 C
1976	10.6 C	-0.78 C
1977	11.4 C	-0.02 C
1978	11.5 C	+0.06 C
1979	12.4 C	+1.04 C
1980	10.9 C	-0.52 C
1981	10.7 C	-0.75 C
1982	11.4 C	-0.03 C
1983	11.0 C	-0.42 C
1984	10.2 C	-1.16 C
1985	11.4 C	-0.04 C
1986	10.7 C	-0.67 C
1987	11.9 C	+0.46 C
1988	10.8 C	-0.63 C
1989	12.0 C	+0.62 C
2025	13.7 C	+2.26 C

The fitted trend in annual mean temperature here over 1951 to 2025 is 0.1 C (-0.1 to 0.2) per decade. The interval includes zero, so the trend is not clearly different from zero. In Fahrenheit: 0.2 F (-0.1 to 0.4) per decade. The slope is a straight line fitted to 40 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Shirakawa
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.1 C (-0.1 to 0.2) per decade	0.2 F (-0.1 to 0.4) per decade	1951 to 2025	40	Not clearly different from zero
Mean daily maximum	0.1 C (-0.1 to 0.2) per decade	0.1 F (-0.1 to 0.4) per decade	1951 to 2025	40	Not clearly different from zero
Mean daily minimum	0.11 C (-0.04 to 0.27) per decade	0.2 F (-0.1 to 0.5) per decade	1951 to 2025	40	Not clearly different from zero

A year is complete when all 12 months have at least 20 days of both daily maximum and daily minimum readings. The annual mean is the mean of the monthly means. The trend describes this one station over this period; it does not say what caused the change.

Extremes by Year

1951 to 2026

Yearly extremes at Shirakawa: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	36.0 C (96.8 F)	2012	33.8 C (92.8 F)	76
Coldest night (TNn)	-13.6 C (7.5 F)	1967	-9.4 C (15.1 F)	76
Wettest day (Rx1day)	393.0 mm (15.5 in)	2026	83.2 mm (3.3 in)	75
Wettest five days (Rx5day)	541.5 mm (21.3 in)	2026	126.0 mm (5.0 in)	70
Longest dry spell (CDD)	45 days	1982	17 days	72

Hottest day (TXx)

The hottest day of the year at Shirakawa, 1951 to 2026. The record is 36.0 C (96.8 F) in 2012, marked on the chart; the median year is 33.8 C (92.8 F).

Hottest day (TXx) at Shirakawa by year
Year	Hottest day (TXx)
1951	33.9 C (93.0 F)
1952	31.8 C (89.2 F)
1953	32.4 C (90.3 F)
1954	32.1 C (89.8 F)
1955	33.7 C (92.7 F)
1956	33.8 C (92.8 F)
1957	32.1 C (89.8 F)
1958	32.9 C (91.2 F)
1959	33.9 C (93.0 F)
1960	34.0 C (93.2 F)
1961	33.7 C (92.7 F)
1962	34.7 C (94.5 F)
1963	31.6 C (88.9 F)
1964	33.5 C (92.3 F)
1965	32.9 C (91.2 F)
1966	33.3 C (91.9 F)
1967	32.5 C (90.5 F)
1968	33.2 C (91.8 F)
1969	32.3 C (90.1 F)
1970	34.6 C (94.3 F)
1971	32.7 C (90.9 F)
1972	32.3 C (90.1 F)
1973	33.9 C (93.0 F)
1974	31.0 C (87.8 F)
1975	34.0 C (93.2 F)
1976	32.8 C (91.0 F)
1977	33.8 C (92.8 F)
1978	33.8 C (92.8 F)
1979	33.4 C (92.1 F)
1980	32.1 C (89.8 F)
1981	31.7 C (89.1 F)
1982	31.0 C (87.8 F)
1983	33.3 C (91.9 F)
1984	33.4 C (92.1 F)
1985	33.7 C (92.7 F)
1986	33.0 C (91.4 F)
1987	34.1 C (93.4 F)
1988	31.3 C (88.3 F)
1989	31.0 C (87.8 F)
1990	27.9 C (82.2 F)
1991	28.3 C (82.9 F)
1992	34.3 C (93.7 F)
1993	30.8 C (87.4 F)
1994	35.1 C (95.2 F)
1995	35.2 C (95.4 F)
1996	33.1 C (91.6 F)
1997	34.0 C (93.2 F)
1998	33.3 C (91.9 F)
1999	33.9 C (93.0 F)
2000	33.8 C (92.8 F)
2001	34.1 C (93.4 F)
2002	34.2 C (93.6 F)
2003	33.5 C (92.3 F)
2004	34.2 C (93.6 F)
2005	34.9 C (94.8 F)
2006	33.7 C (92.7 F)
2007	35.2 C (95.4 F)
2008	33.2 C (91.8 F)
2009	33.0 C (91.4 F)
2010	34.3 C (93.7 F)
2011	34.7 C (94.5 F)
2012	36.0 C (96.8 F)
2013	35.2 C (95.4 F)
2014	35.6 C (96.1 F)
2015	35.9 C (96.6 F)
2016	34.0 C (93.2 F)
2017	33.5 C (92.3 F)
2018	35.7 C (96.3 F)
2019	35.0 C (95.0 F)
2020	35.5 C (95.9 F)
2021	34.9 C (94.8 F)
2022	35.5 C (95.9 F)
2023	34.9 C (94.8 F)
2024	36.0 C (96.8 F)
2025	35.1 C (95.2 F)
2026	35.0 C (95.0 F)

Coldest night (TNn)

The coldest night of the year at Shirakawa, 1951 to 2026. The record is -13.6 C (7.5 F) in 1967, marked on the chart; the median year is -9.4 C (15.1 F).

Coldest night (TNn) at Shirakawa by year
Year	Coldest night (TNn)
1951	-13.4 C (7.9 F)
1952	-11.7 C (10.9 F)
1953	-9.4 C (15.1 F)
1954	-11.7 C (10.9 F)
1955	-10.7 C (12.7 F)
1956	-10.9 C (12.4 F)
1957	-8.8 C (16.2 F)
1958	-8.6 C (16.5 F)
1959	-9.6 C (14.7 F)
1960	-9.4 C (15.1 F)
1961	-10.1 C (13.8 F)
1962	-9.2 C (15.4 F)
1963	-13.2 C (8.2 F)
1964	-11.8 C (10.8 F)
1965	-10.9 C (12.4 F)
1966	-10.0 C (14.0 F)
1967	-13.6 C (7.5 F)
1968	-12.2 C (10.0 F)
1969	-10.0 C (14.0 F)
1970	-11.6 C (11.1 F)
1971	-11.3 C (11.7 F)
1972	-10.0 C (14.0 F)
1973	-8.2 C (17.2 F)
1974	-12.0 C (10.4 F)
1975	-9.5 C (14.9 F)
1976	-12.4 C (9.7 F)
1977	-12.2 C (10.0 F)
1978	-9.6 C (14.7 F)
1979	-6.3 C (20.7 F)
1980	-8.9 C (16.0 F)
1981	-11.4 C (11.5 F)
1982	-9.6 C (14.7 F)
1983	-10.6 C (12.9 F)
1984	-12.6 C (9.3 F)
1985	-10.0 C (14.0 F)
1986	-10.5 C (13.1 F)
1987	-9.4 C (15.1 F)
1988	-11.7 C (10.9 F)
1989	-6.8 C (19.8 F)
1990	7.9 C (46.2 F)
1991	14.7 C (58.5 F)
1992	-6.2 C (20.8 F)
1993	-7.2 C (19.0 F)
1994	-8.0 C (17.6 F)
1995	-8.4 C (16.9 F)
1996	-8.8 C (16.2 F)
1997	-8.0 C (17.6 F)
1998	-8.3 C (17.1 F)
1999	-9.5 C (14.9 F)
2000	-7.7 C (18.1 F)
2001	-10.4 C (13.3 F)
2002	-7.7 C (18.1 F)
2003	-10.4 C (13.3 F)
2004	-8.2 C (17.2 F)
2005	-9.4 C (15.1 F)
2006	-10.9 C (12.4 F)
2007	-6.9 C (19.6 F)
2008	-8.4 C (16.9 F)
2009	-7.2 C (19.0 F)
2010	-9.0 C (15.8 F)
2011	-8.7 C (16.3 F)
2012	-9.7 C (14.5 F)
2013	-8.2 C (17.2 F)
2014	-8.5 C (16.7 F)
2015	-7.3 C (18.9 F)
2016	-7.8 C (18.0 F)
2017	-7.6 C (18.3 F)
2018	-10.3 C (13.5 F)
2019	-7.2 C (19.0 F)
2020	-8.0 C (17.6 F)
2021	-9.9 C (14.2 F)
2022	-7.4 C (18.7 F)
2023	-9.4 C (15.1 F)
2024	-6.5 C (20.3 F)
2025	-5.8 C (21.6 F)
2026	-7.1 C (19.2 F)

Wettest day (Rx1day)

The wettest day of the year at Shirakawa, 1951 to 2026. The record is 393.0 mm (15.5 in) in 2026, marked on the chart; the median year is 83.2 mm (3.3 in).

Wettest day (Rx1day) at Shirakawa by year
Year	Wettest day (Rx1day)
1951	43.8 mm (1.7 in)
1952	49.2 mm (1.9 in)
1953	71.5 mm (2.8 in)
1954	75.4 mm (3.0 in)
1955	65.3 mm (2.6 in)
1956	60.9 mm (2.4 in)
1957	106.4 mm (4.2 in)
1958	175.7 mm (6.9 in)
1959	80.8 mm (3.2 in)
1960	61.1 mm (2.4 in)
1961	177.5 mm (7.0 in)
1962	77.1 mm (3.0 in)
1963	80.7 mm (3.2 in)
1964	91.7 mm (3.6 in)
1965	83.2 mm (3.3 in)
1966	150.8 mm (5.9 in)
1967	49.0 mm (1.9 in)
1968	68.0 mm (2.7 in)
1969	58.0 mm (2.3 in)
1970	84.5 mm (3.3 in)
1971	162.0 mm (6.4 in)
1972	51.5 mm (2.0 in)
1973	50.5 mm (2.0 in)
1974	58.5 mm (2.3 in)
1975	53.0 mm (2.1 in)
1976	74.0 mm (2.9 in)
1977	90.5 mm (3.6 in)
1978	87.5 mm (3.4 in)
1979	72.0 mm (2.8 in)
1980	62.5 mm (2.5 in)
1981	64.0 mm (2.5 in)
1982	145.0 mm (5.7 in)
1983	88.0 mm (3.5 in)
1984	49.0 mm (1.9 in)
1985	71.0 mm (2.8 in)
1986	125.0 mm (4.9 in)
1987	67.0 mm (2.6 in)
1988	85.0 mm (3.3 in)
1989	104.5 mm (4.1 in)
1990	67.1 mm (2.6 in)
1991	n/a
1992	114.0 mm (4.5 in)
1993	104.9 mm (4.1 in)
1994	62.0 mm (2.4 in)
1995	99.1 mm (3.9 in)
1996	104.9 mm (4.1 in)
1997	57.9 mm (2.3 in)
1998	131.1 mm (5.2 in)
1999	124.0 mm (4.9 in)
2000	131.8 mm (5.2 in)
2001	59.9 mm (2.4 in)
2002	157.0 mm (6.2 in)
2003	54.1 mm (2.1 in)
2004	137.9 mm (5.4 in)
2005	76.2 mm (3.0 in)
2006	90.2 mm (3.6 in)
2007	101.1 mm (4.0 in)
2008	102.1 mm (4.0 in)
2009	126.0 mm (5.0 in)
2010	83.1 mm (3.3 in)
2011	229.1 mm (9.0 in)
2012	91.9 mm (3.6 in)
2013	111.0 mm (4.4 in)
2014	115.1 mm (4.5 in)
2015	134.1 mm (5.3 in)
2016	95.0 mm (3.7 in)
2017	85.1 mm (3.4 in)
2018	77.0 mm (3.0 in)
2019	301.0 mm (11.9 in)
2020	63.0 mm (2.5 in)
2021	66.0 mm (2.6 in)
2022	95.0 mm (3.7 in)
2023	79.0 mm (3.1 in)
2024	82.0 mm (3.2 in)
2025	12.0 mm (0.5 in)
2026	393.0 mm (15.5 in)

Wettest five days (Rx5day)

The wettest five days of the year at Shirakawa, 1951 to 2026. The record is 541.5 mm (21.3 in) in 2026, marked on the chart; the median year is 126.0 mm (5.0 in).

Wettest five days (Rx5day) at Shirakawa by year
Year	Wettest five days (Rx5day)
1951	86.2 mm (3.4 in)
1952	101.4 mm (4.0 in)
1953	112.8 mm (4.4 in)
1954	118.0 mm (4.6 in)
1955	110.6 mm (4.4 in)
1956	132.3 mm (5.2 in)
1957	196.8 mm (7.7 in)
1958	243.5 mm (9.6 in)
1959	139.2 mm (5.5 in)
1960	91.3 mm (3.6 in)
1961	256.6 mm (10.1 in)
1962	114.0 mm (4.5 in)
1963	130.6 mm (5.1 in)
1964	180.8 mm (7.1 in)
1965	112.9 mm (4.4 in)
1966	190.3 mm (7.5 in)
1967	86.2 mm (3.4 in)
1968	126.0 mm (5.0 in)
1969	114.0 mm (4.5 in)
1970	118.5 mm (4.7 in)
1971	222.0 mm (8.7 in)
1972	114.0 mm (4.5 in)
1973	89.5 mm (3.5 in)
1974	109.0 mm (4.3 in)
1975	83.5 mm (3.3 in)
1976	126.0 mm (5.0 in)
1977	196.0 mm (7.7 in)
1978	152.5 mm (6.0 in)
1979	95.0 mm (3.7 in)
1980	171.5 mm (6.8 in)
1981	131.0 mm (5.2 in)
1982	220.0 mm (8.7 in)
1983	118.5 mm (4.7 in)
1984	68.5 mm (2.7 in)
1985	132.0 mm (5.2 in)
1986	252.5 mm (9.9 in)
1987	124.0 mm (4.9 in)
1988	151.5 mm (6.0 in)
1989	128.0 mm (5.0 in)
1990	n/a
1991	n/a
1992	43.9 mm (1.7 in)
1993	n/a
1994	n/a
1995	26.9 mm (1.1 in)
1996	n/a
1997	74.4 mm (2.9 in)
1998	78.4 mm (3.1 in)
1999	262.9 mm (10.4 in)
2000	218.2 mm (8.6 in)
2001	43.7 mm (1.7 in)
2002	n/a
2003	128.3 mm (5.1 in)
2004	10.9 mm (0.4 in)
2005	116.1 mm (4.6 in)
2006	154.0 mm (6.1 in)
2007	141.1 mm (5.6 in)
2008	111.5 mm (4.4 in)
2009	159.0 mm (6.3 in)
2010	122.7 mm (4.8 in)
2011	304.8 mm (12.0 in)
2012	148.8 mm (5.9 in)
2013	166.9 mm (6.6 in)
2014	147.6 mm (5.8 in)
2015	171.2 mm (6.7 in)
2016	121.9 mm (4.8 in)
2017	207.0 mm (8.1 in)
2018	110.1 mm (4.3 in)
2019	400.3 mm (15.8 in)
2020	118.7 mm (4.7 in)
2021	156.5 mm (6.2 in)
2022	129.0 mm (5.1 in)
2023	107.9 mm (4.2 in)
2024	100.0 mm (3.9 in)
2025	20.0 mm (0.8 in)
2026	541.5 mm (21.3 in)

Longest dry spell (CDD)

The longest dry spell of the year at Shirakawa, 1951 to 2026. The record is 45 days in 1982, marked on the chart; the median year is 17 days.

Longest dry spell (CDD) at Shirakawa by year
Year	Longest dry spell (CDD)
1951	18 days
1952	15 days
1953	14 days
1954	21 days
1955	18 days
1956	11 days
1957	33 days
1958	15 days
1959	13 days
1960	23 days
1961	12 days
1962	24 days
1963	20 days
1964	15 days
1965	15 days
1966	27 days
1967	16 days
1968	14 days
1969	26 days
1970	24 days
1971	21 days
1972	14 days
1973	23 days
1974	20 days
1975	20 days
1976	14 days
1977	23 days
1978	19 days
1979	29 days
1980	19 days
1981	34 days
1982	45 days
1983	14 days
1984	20 days
1985	27 days
1986	41 days
1987	18 days
1988	32 days
1989	20 days
1990	n/a
1991	n/a
1992	1 day
1993	1 day
1994	1 day
1995	1 day
1996	1 day
1997	1 day
1998	3 days
1999	8 days
2000	n/a
2001	n/a
2002	2 days
2003	3 days
2004	6 days
2005	4 days
2006	3 days
2007	2 days
2008	14 days
2009	19 days
2010	26 days
2011	18 days
2012	19 days
2013	14 days
2014	25 days
2015	17 days
2016	17 days
2017	16 days
2018	19 days
2019	21 days
2020	15 days
2021	14 days
2022	25 days
2023	16 days
2024	16 days
2025	9 days
2026	14 days

Each chart shows one value per year; the dot marks the record year. TXx is the hottest daily maximum, TNn the coldest daily minimum, Rx1day and Rx5day the largest one-day and five-day rain totals, and CDD the longest run of days with less than 1 mm of rain. A year with missing days can understate an extreme.

Frost Dates and Growing Season

40 years with a frost

Across 40 years with a frost, the median last spring frost at Shirakawa falls on 22 April and the median first autumn frost on 7 November, which leaves a median of 199 days between them.

Fitted over all years, the growing season changes by +4.2 days per decade at this station.

Frost dates and growing season at Shirakawa
Measure	Median, all years	Earliest period	Recent period (1961 to 2025)	Recent against earliest	Fitted trend
Last spring frost	22 April	n/a	22 April	n/a	-4.3 days per decade
First autumn frost	7 November	n/a	6 November	n/a	-0.1 days per decade
Growing days	199 days	n/a	201 days	n/a	+4.2 days per decade

A frost day is a day with a daily minimum at or below 0 C (32 F). The last spring frost and the first autumn frost are the last and first such days of the cold season, and growing days are the days between them. A negative trend for the last spring frost means it comes earlier.

Rainfall Return Levels

52 years, 1951 to 2022

A day with at least 79.9 mm (3.1 in) of rain is expected about once in 2 years. A day with at least 299.3 mm (11.8 in) of rain is expected about once in 100 years.

Rainfall return levels at Shirakawa: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	79.9 mm (3.1 in)
5 years	115.0 mm (4.5 in)
10 years	145.5 mm (5.7 in)
25 years	195.2 mm (7.7 in)
50 years	242.1 mm (9.5 in)
100 years	299.3 mm (11.8 in)	Longer than the 52 years of record

The levels come from a generalised extreme value (GEV) distribution fitted by L-moments to the wettest-day total of each year, 52 years of values from 1951 to 2022.

A return level is an estimate. It is least reliable for the long periods, 50 and 100 years, and for any period longer than the record behind the fit, where the fit has to reach past the largest day actually observed. It is not a forecast.

The largest wettest-day totals in the fit: 301.0 mm (11.9 in) in 2019; 229.1 mm (9.0 in) in 2011; 177.5 mm (7.0 in) in 1961.

Station Changes

No change in the annual mean temperature of this station was found against its neighbours.

Download the Data

Data for Shirakawa standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Shirakawa threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-14. Last revised 14 October 2026 (2026-10-14).