Nemuro Weather Records (JA000047420)

Record envelope, standing records and threshold days for Nemuro (JA000047420), Japan, with 96 years of record.

Key Facts for Nemuro

Nemuro (JA000047420) is a weather station in Japan at 43.33 latitude and 145.58 longitude, 39 m (128 ft) above sea level.
The station reports from 1931 to 2026, 96 years of record.
1,464 records set at Nemuro still stand.
Records are tracked for tmax, tmin, prcp: an element needs 30 years of data to be eligible.
Nemuro tied a daily record high minimum temperature of 13.9 C (57.0 F) on 11 October 2026 (provisional).

Provisional Records

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

About the Station

Location: Japan, 43.33 latitude, 145.58 longitude.
Elevation: 39 m (128 ft).
Period of record: 1931 to 2026, 96 years.
Eligible elements: tmax, tmin, prcp.

Daily Record Envelope and 2026

8 days at or beyond a record

The band shows the record high and record low for each calendar day at Nemuro. The lines show the 2026 daily maximum and minimum. 8 days in 2026 matched or passed a record. Temperatures are in degrees Celsius.

Daily record high and record low at Nemuro, with 2026 drawn through them
Month	Highest record high	Lowest record low	2026 highest maximum	2026 lowest minimum
Jan	9.4 C (48.9 F)	-19.4 C (-2.9 F)	7.0 C (44.6 F)	-9.7 C (14.5 F)
Feb	9.5 C (49.1 F)	-22.9 C (-9.2 F)	7.9 C (46.2 F)	-8.7 C (16.3 F)
Mar	13.1 C (55.6 F)	-19.0 C (-2.2 F)	8.0 C (46.4 F)	-1.8 C (28.8 F)
Apr	22.7 C (72.9 F)	-9.9 C (14.2 F)	14.2 C (57.6 F)	0.2 C (32.4 F)
May	34.0 C (93.2 F)	-3.3 C (26.1 F)	23.6 C (74.5 F)	3.0 C (37.4 F)
Jun	32.1 C (89.8 F)	0.6 C (33.1 F)	24.2 C (75.6 F)	5.5 C (41.9 F)
Jul	33.4 C (92.1 F)	3.6 C (38.5 F)	24.7 C (76.5 F)	7.0 C (44.6 F)
Aug	33.6 C (92.5 F)	7.1 C (44.8 F)	26.1 C (79.0 F)	12.8 C (55.0 F)
Sep	29.5 C (85.1 F)	3.2 C (37.8 F)	34.1 C (93.4 F)	11.2 C (52.2 F)
Oct	24.2 C (75.6 F)	-2.0 C (28.4 F)	26.4 C (79.5 F)	10.1 C (50.2 F)
Nov	19.2 C (66.6 F)	-8.3 C (17.1 F)	n/a	n/a
Dec	13.2 C (55.8 F)	-15.1 C (4.8 F)	n/a	n/a

Which Years Hold Standing Records

1,464 standing records

1,464 records at Nemuro still stand. 2025 holds the most, with 76.

Standing records at Nemuro by the year they were set
Year set	Standing records
1931	34
1932	13
1933	12
1934	10
1935	16
1936	6
1937	15
1938	15
1939	16
1940	15
1941	35
1942	11
1943	9
1944	25
1945	32
1946	15
1947	8
1948	16
1949	18
1950	26
1951	14
1952	23
1953	34
1954	20
1955	15
1956	12
1957	13
1958	7
1959	12
1960	22
1961	15
1962	10
1963	6
1964	22
1965	15
1966	26
1967	23
1968	21
1969	24
1970	21
1971	17
1972	8
1973	11
1974	6
1975	16
1976	15
1977	20
1978	24
1979	20
1980	20
1981	11
1982	12
1983	22
1984	13
1985	20
1986	15
1987	18
1988	14
1989	13
1990	27
1991	20
1992	12
1993	9
1994	11
1995	9
1996	8
1997	11
1998	15
1999	25
2000	9
2001	10
2002	14
2003	8
2004	4
2006	2
2007	10
2008	6
2009	5
2010	11
2011	12
2012	11
2013	5
2014	1
2015	12
2016	18
2017	11
2018	8
2019	17
2020	9
2021	5
2022	4
2023	24
2024	8
2025	76
2026	20

All-Time Record Progression

5 new records

5 all-time records were set at Nemuro between 4 September 1986 and 23 August 2023. Each dot is a new record.

When Nemuro set new all-time records
Date	Kind	Detail
1986-09-04	Record daily precipitation	Record daily precipitation 148.0 mm (5.8 in)
1992-09-11	Record daily precipitation	Record daily precipitation 212.0 mm (8.3 in)
2015-08-05	Record high maximum temperature	Record high maximum temperature 33.6 C (92.5 F)
2019-05-26	Record high maximum temperature	Record high maximum temperature 34.0 C (93.2 F)
2023-08-23	Record high minimum temperature	Record high minimum temperature 24.3 C (75.7 F)

Wettest Day of Each Month

Sep: 212.0 mm (8.3 in)

The wettest day on record for each calendar month at Nemuro. The most was 212.0 mm (8.3 in) on 11 September 1992.

Record daily precipitation for each month at Nemuro
Month	Record daily precipitation (mm)	Date
Jan	55.0 mm (2.2 in)	14 January 1986
Feb	46.0 mm (1.8 in)	9 February 1959
Mar	59.0 mm (2.3 in)	2 March 1972
Apr	100.0 mm (3.9 in)	30 April 1990
May	89.0 mm (3.5 in)	29 May 1981
Jun	112.0 mm (4.4 in)	21 June 2003
Jul	126.0 mm (5.0 in)	11 July 1996
Aug	150.9 mm (5.9 in)	11 August 2015
Sep	212.0 mm (8.3 in)	11 September 1992
Oct	144.0 mm (5.7 in)	12 October 1972
Nov	101.1 mm (4.0 in)	12 November 2006
Dec	73.0 mm (2.9 in)	1 December 1972

Period of Record Coverage

1931 to 2026

95 years of record at Nemuro, 1931 to 2026. 24 years have data for under 90 percent of days and are left out of rankings: 2001, 2002, 2003, 2004, 2006, 2007, 2008, 2009 and others.

Days with data per year at Nemuro
Year	Days with data	Share of year	Complete
1931	365	100%	Yes
1932	366	100%	Yes
1933	365	100%	Yes
1934	365	100%	Yes
1935	365	100%	Yes
1936	366	100%	Yes
1937	365	100%	Yes
1938	365	100%	Yes
1939	365	100%	Yes
1940	366	100%	Yes
1941	365	100%	Yes
1942	363	99%	Yes
1943	365	100%	Yes
1944	366	100%	Yes
1945	365	100%	Yes
1946	365	100%	Yes
1947	365	100%	Yes
1948	366	100%	Yes
1949	364	100%	Yes
1950	365	100%	Yes
1951	365	100%	Yes
1952	366	100%	Yes
1953	359	98%	Yes
1954	359	98%	Yes
1955	358	98%	Yes
1956	360	98%	Yes
1957	361	99%	Yes
1958	359	98%	Yes
1959	364	100%	Yes
1960	362	99%	Yes
1961	359	98%	Yes
1962	360	99%	Yes
1963	355	97%	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	365	100%	Yes
1991	365	100%	Yes
1992	366	100%	Yes
1993	365	100%	Yes
1994	365	100%	Yes
1995	365	100%	Yes
1996	366	100%	Yes
1997	365	100%	Yes
1998	365	100%	Yes
1999	365	100%	Yes
2000	366	100%	Yes
2001	313	86%	No
2002	314	86%	No
2003	316	87%	No
2004	307	84%	No
2006	319	87%	No
2007	315	86%	No
2008	324	89%	No
2009	304	83%	No
2010	306	84%	No
2011	323	88%	No
2012	313	86%	No
2013	107	29%	No
2014	2	1%	No
2015	259	71%	No
2016	287	78%	No
2017	296	81%	No
2018	295	81%	No
2019	301	82%	No
2020	64	17%	No
2021	4	1%	No
2022	127	35%	No
2023	7	2%	No
2024	2	1%	No
2025	358	98%	Yes
2026	276	76%	No

Latest Records

Latest records at Nemuro
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 October 2026	Nemuro, JP	daily high min (Tie, Provisional)	13.9 C (57.0 F)	tie	73 years	7 of 100 (Routine)
9 October 2026	Nemuro, JP	daily high max (Provisional)	21.9 C (71.4 F)	0.7 C (1.3 F)	75 years	33 of 100 (Routine)
6 October 2026	Nemuro, JP	daily high min (Provisional)	14.6 C (58.3 F)	0.9 C (1.6 F)	39 years	22 of 100 (Routine)
3 October 2026	Nemuro, JP	monthly high max (Provisional)	26.4 C (79.5 F)	2.2 C (4.0 F)	32 years	35 of 100 (Notable)
3 October 2026	Nemuro, JP	daily rain (Provisional)	115.0 mm (4.5 in)	38.0 mm (1.5 in)	12 years	31 of 100 (Routine)
29 September 2026	Nemuro, JP	daily high max (Provisional)	23.6 C (74.5 F)	0.7 C (1.3 F)	48 years	25 of 100 (Routine)
28 September 2026	Nemuro, JP	daily rain (Provisional)	190.0 mm (7.5 in)	150.4 mm (5.9 in)	20 years	53 of 100 (Notable)
28 September 2026	Nemuro, JP	daily high min (Provisional)	17.8 C (64.0 F)	0.1 C (0.2 F)	0 years	9 of 100 (Routine)
27 September 2026	Nemuro, JP	daily high min (Provisional)	17.2 C (63.0 F)	0.9 C (1.6 F)	44 years	25 of 100 (Routine)
21 September 2026	Nemuro, JP	daily rain (Provisional)	68.5 mm (2.7 in)	23.5 mm (0.9 in)	63 years	37 of 100 (Notable)
21 September 2026	Nemuro, JP	daily high min (Provisional)	16.9 C (62.4 F)	0.5 C (0.9 F)	51 years	26 of 100 (Routine)
20 September 2026	Nemuro, JP	daily high min (Provisional)	16.4 C (61.5 F)	0.1 C (0.2 F)	48 years	23 of 100 (Routine)
19 September 2026	Nemuro, JP	daily rain (Provisional)	149.0 mm (5.9 in)	67.0 mm (2.6 in)	28 years	50 of 100 (Notable)
13 September 2026	Nemuro, JP	daily high min (Provisional)	17.8 C (64.0 F)	0.1 C (0.2 F)	0 years	9 of 100 (Routine)
9 September 2026	Nemuro, JP	daily rain (Provisional)	152.5 mm (6.0 in)	68.4 mm (2.7 in)	9 years	44 of 100 (Notable)
8 September 2026	Nemuro, JP	daily rain (Provisional)	110.0 mm (4.3 in)	29.5 mm (1.2 in)	19 years	27 of 100 (Routine)
3 September 2026	Nemuro, JP	monthly rain (Provisional)	312.8 mm (12.3 in)	100.8 mm (4.0 in)	33 years	67 of 100 (Major)
3 September 2026	Nemuro, JP	all-time high max (Provisional)	34.1 C (93.4 F)	0.1 C (0.2 F)	7 years	31 of 100 (Routine)
28 August 2026	Nemuro, JP	daily rain (Provisional)	242.0 mm (9.5 in)	181.0 mm (7.1 in)	4 years	48 of 100 (Notable)
26 August 2026	Nemuro, JP	all-time rain (Provisional)	326.0 mm (12.8 in)	114.0 mm (4.5 in)	33 years	77 of 100 (Major)

Climate Trend

71 complete years, 1931 to 2025

One stripe for each of 71 complete years at Nemuro, 1931 to 2025. Blue stripes are years cooler than the station's own mean of 6.0 C (42.9 F); red stripes are warmer. The coolest year was 1945, at 4.7 C (40.4 F), and the warmest was 2025, at 9.0 C (48.2 F). The strongest colour marks a difference of 3.0 C (5.4 F).

Annual mean temperature at Nemuro as warming stripes, 1931 to 2025
Year	Annual mean temperature	Difference from the station mean
1931	4.8 C	-1.21 C
1932	6.0 C	-0.01 C
1933	5.6 C	-0.44 C
1934	5.9 C	-0.13 C
1935	5.8 C	-0.22 C
1936	5.6 C	-0.47 C
1937	6.3 C	+0.28 C
1938	6.3 C	+0.27 C
1939	5.8 C	-0.23 C
1940	5.8 C	-0.28 C
1941	5.1 C	-0.96 C
1942	5.2 C	-0.80 C
1943	6.3 C	+0.25 C
1944	5.3 C	-0.76 C
1945	4.7 C	-1.37 C
1946	6.4 C	+0.31 C
1947	5.3 C	-0.72 C
1948	6.7 C	+0.70 C
1949	6.0 C	-0.02 C
1950	6.6 C	+0.59 C
1951	6.2 C	+0.13 C
1952	5.5 C	-0.53 C
1953	4.9 C	-1.17 C
1954	5.4 C	-0.63 C
1955	6.5 C	+0.44 C
1956	6.3 C	+0.21 C
1957	5.8 C	-0.23 C
1958	6.1 C	+0.03 C
1959	6.3 C	+0.30 C
1960	5.9 C	-0.13 C
1961	6.5 C	+0.48 C
1962	6.9 C	+0.85 C
1963	6.6 C	+0.55 C
1964	5.1 C	-0.96 C
1965	5.7 C	-0.32 C
1966	5.4 C	-0.60 C
1967	5.8 C	-0.21 C
1968	6.3 C	+0.24 C
1969	5.3 C	-0.70 C
1970	5.8 C	-0.26 C
1971	5.5 C	-0.55 C
1972	6.5 C	+0.46 C
1973	6.3 C	+0.27 C
1974	5.9 C	-0.16 C
1975	6.1 C	+0.01 C
1976	6.2 C	+0.15 C
1977	5.5 C	-0.53 C
1978	6.1 C	+0.05 C
1979	6.6 C	+0.57 C
1980	5.9 C	-0.15 C
1981	5.7 C	-0.37 C
1982	6.6 C	+0.54 C
1983	5.2 C	-0.87 C
1984	5.7 C	-0.30 C
1985	5.8 C	-0.29 C
1986	5.2 C	-0.88 C
1987	5.9 C	-0.17 C
1988	5.4 C	-0.65 C
1989	7.1 C	+1.02 C
1990	7.6 C	+1.54 C
1991	7.0 C	+0.99 C
1992	6.3 C	+0.30 C
1993	6.2 C	+0.16 C
1994	7.1 C	+1.03 C
1995	6.8 C	+0.74 C
1996	5.9 C	-0.16 C
1997	6.4 C	+0.37 C
1998	6.2 C	+0.11 C
1999	7.1 C	+1.10 C
2000	6.4 C	+0.32 C
2025	9.0 C	+2.97 C

The annual mean temperature here has risen by 0.2 C (0.1 to 0.2) per decade over 1931 to 2025. In Fahrenheit: 0.3 F (0.1 to 0.4) per decade. The slope is a straight line fitted to 71 complete years; the brackets give its 95 percent interval.

Fitted temperature trends per decade at Nemuro
Measure	Per decade (C)	Per decade (F)	Period	Complete years	Reading
Annual mean temperature	0.2 C (0.1 to 0.2) per decade	0.3 F (0.1 to 0.4) per decade	1931 to 2025	71	Rise
Mean daily maximum	0.10 C (0.03 to 0.16) per decade	0.17 F (0.05 to 0.30) per decade	1931 to 2025	71	Rise
Mean daily minimum	0.2 C (0.1 to 0.3) per decade	0.4 F (0.2 to 0.5) per decade	1931 to 2025	71	Rise

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

1931 to 2026

Yearly extremes at Nemuro: the record and the median year
Measure	Record	Year of the record	Median year	Years with a value
Hottest day (TXx)	34.1 C (93.4 F)	2026	28.8 C (83.8 F)	95
Coldest night (TNn)	-22.9 C (-9.2 F)	1931	-14.8 C (5.4 F)	95
Wettest day (Rx1day)	326.0 mm (12.8 in)	2026	72.0 mm (2.8 in)	73
Wettest five days (Rx5day)	418.8 mm (16.5 in)	2026	109.2 mm (4.3 in)	73
Longest dry spell (CDD)	30 days	1984	16 days	72

Hottest day (TXx)

The hottest day of the year at Nemuro, 1931 to 2026. The record is 34.1 C (93.4 F) in 2026, marked on the chart; the median year is 28.8 C (83.8 F).

Hottest day (TXx) at Nemuro by year
Year	Hottest day (TXx)
1931	27.6 C (81.7 F)
1932	26.6 C (79.9 F)
1933	29.3 C (84.7 F)
1934	27.7 C (81.9 F)
1935	27.3 C (81.1 F)
1936	26.6 C (79.9 F)
1937	28.7 C (83.7 F)
1938	27.6 C (81.7 F)
1939	30.9 C (87.6 F)
1940	28.0 C (82.4 F)
1941	26.6 C (79.9 F)
1942	25.9 C (78.6 F)
1943	30.7 C (87.3 F)
1944	29.7 C (85.5 F)
1945	28.1 C (82.6 F)
1946	29.1 C (84.4 F)
1947	27.7 C (81.9 F)
1948	27.6 C (81.7 F)
1949	29.9 C (85.8 F)
1950	30.2 C (86.4 F)
1951	30.9 C (87.6 F)
1952	26.4 C (79.5 F)
1953	27.2 C (81.0 F)
1954	24.5 C (76.1 F)
1955	29.3 C (84.7 F)
1956	26.3 C (79.3 F)
1957	28.8 C (83.8 F)
1958	26.8 C (80.2 F)
1959	26.3 C (79.3 F)
1960	33.0 C (91.4 F)
1961	27.4 C (81.3 F)
1962	31.3 C (88.3 F)
1963	30.4 C (86.7 F)
1964	30.4 C (86.7 F)
1965	30.0 C (86.0 F)
1966	29.3 C (84.7 F)
1967	28.8 C (83.8 F)
1968	27.5 C (81.5 F)
1969	29.2 C (84.6 F)
1970	31.9 C (89.4 F)
1971	30.3 C (86.5 F)
1972	29.4 C (84.9 F)
1973	31.1 C (88.0 F)
1974	27.1 C (80.8 F)
1975	31.1 C (88.0 F)
1976	30.8 C (87.4 F)
1977	29.0 C (84.2 F)
1978	29.2 C (84.6 F)
1979	29.6 C (85.3 F)
1980	27.3 C (81.1 F)
1981	28.6 C (83.5 F)
1982	29.0 C (84.2 F)
1983	31.6 C (88.9 F)
1984	31.8 C (89.2 F)
1985	31.8 C (89.2 F)
1986	30.4 C (86.7 F)
1987	26.4 C (79.5 F)
1988	27.9 C (82.2 F)
1989	28.1 C (82.6 F)
1990	27.4 C (81.3 F)
1991	28.1 C (82.6 F)
1992	28.6 C (83.5 F)
1993	25.4 C (77.7 F)
1994	32.2 C (90.0 F)
1995	27.2 C (81.0 F)
1996	27.3 C (81.1 F)
1997	28.1 C (82.6 F)
1998	29.5 C (85.1 F)
1999	30.2 C (86.4 F)
2000	28.8 C (83.8 F)
2001	26.9 C (80.4 F)
2002	26.7 C (80.1 F)
2003	26.6 C (79.9 F)
2004	31.4 C (88.5 F)
2006	29.3 C (84.7 F)
2007	32.7 C (90.9 F)
2008	26.0 C (78.8 F)
2009	28.8 C (83.8 F)
2010	32.9 C (91.2 F)
2011	32.0 C (89.6 F)
2012	30.4 C (86.7 F)
2013	20.7 C (69.3 F)
2014	20.6 C (69.1 F)
2015	33.6 C (92.5 F)
2016	29.0 C (84.2 F)
2017	32.4 C (90.3 F)
2018	30.1 C (86.2 F)
2019	34.0 C (93.2 F)
2020	13.5 C (56.3 F)
2021	18.3 C (64.9 F)
2022	29.0 C (84.2 F)
2023	24.2 C (75.6 F)
2024	17.5 C (63.5 F)
2025	33.4 C (92.1 F)
2026	34.1 C (93.4 F)

Coldest night (TNn)

The coldest night of the year at Nemuro, 1931 to 2026. The record is -22.9 C (-9.2 F) in 1931, marked on the chart; the median year is -14.8 C (5.4 F).

Coldest night (TNn) at Nemuro by year
Year	Coldest night (TNn)
1931	-22.9 C (-9.2 F)
1932	-13.5 C (7.7 F)
1933	-19.6 C (-3.3 F)
1934	-11.8 C (10.8 F)
1935	-12.6 C (9.3 F)
1936	-15.9 C (3.4 F)
1937	-16.2 C (2.8 F)
1938	-17.3 C (0.9 F)
1939	-17.4 C (0.7 F)
1940	-15.9 C (3.4 F)
1941	-16.7 C (1.9 F)
1942	-21.5 C (-6.7 F)
1943	-13.2 C (8.2 F)
1944	-18.1 C (-0.6 F)
1945	-18.6 C (-1.5 F)
1946	-18.3 C (-0.9 F)
1947	-16.1 C (3.0 F)
1948	-13.1 C (8.4 F)
1949	-14.0 C (6.8 F)
1950	-15.2 C (4.6 F)
1951	-21.5 C (-6.7 F)
1952	-15.1 C (4.8 F)
1953	-20.6 C (-5.1 F)
1954	-17.9 C (-0.2 F)
1955	-16.0 C (3.2 F)
1956	-14.4 C (6.1 F)
1957	-13.7 C (7.3 F)
1958	-13.5 C (7.7 F)
1959	-15.9 C (3.4 F)
1960	-20.2 C (-4.4 F)
1961	-18.0 C (-0.4 F)
1962	-12.7 C (9.1 F)
1963	-15.1 C (4.8 F)
1964	-15.9 C (3.4 F)
1965	-17.3 C (0.9 F)
1966	-17.3 C (0.9 F)
1967	-16.7 C (1.9 F)
1968	-14.6 C (5.7 F)
1969	-15.7 C (3.7 F)
1970	-17.6 C (0.3 F)
1971	-16.3 C (2.7 F)
1972	-16.6 C (2.1 F)
1973	-14.6 C (5.7 F)
1974	-12.4 C (9.7 F)
1975	-15.6 C (3.9 F)
1976	-12.3 C (9.9 F)
1977	-22.7 C (-8.9 F)
1978	-22.1 C (-7.8 F)
1979	-15.9 C (3.4 F)
1980	-16.0 C (3.2 F)
1981	-15.8 C (3.6 F)
1982	-16.1 C (3.0 F)
1983	-15.4 C (4.3 F)
1984	-13.5 C (7.7 F)
1985	-18.4 C (-1.1 F)
1986	-19.0 C (-2.2 F)
1987	-17.9 C (-0.2 F)
1988	-14.3 C (6.3 F)
1989	-13.0 C (8.6 F)
1990	-13.4 C (7.9 F)
1991	-9.8 C (14.4 F)
1992	-13.7 C (7.3 F)
1993	-10.5 C (13.1 F)
1994	-13.5 C (7.7 F)
1995	-12.5 C (9.5 F)
1996	-15.0 C (5.0 F)
1997	-9.9 C (14.2 F)
1998	-14.7 C (5.5 F)
1999	-14.3 C (6.3 F)
2000	-14.6 C (5.7 F)
2001	-15.8 C (3.6 F)
2002	-11.6 C (11.1 F)
2003	-15.9 C (3.4 F)
2004	-10.4 C (13.3 F)
2006	-14.0 C (6.8 F)
2007	-11.3 C (11.7 F)
2008	-13.3 C (8.1 F)
2009	-10.1 C (13.8 F)
2010	-14.8 C (5.4 F)
2011	-12.1 C (10.2 F)
2012	-13.8 C (7.2 F)
2013	-15.2 C (4.6 F)
2014	-11.6 C (11.1 F)
2015	-9.6 C (14.7 F)
2016	-12.4 C (9.7 F)
2017	-12.2 C (10.0 F)
2018	-12.3 C (9.9 F)
2019	-17.0 C (1.4 F)
2020	-11.9 C (10.6 F)
2021	-13.3 C (8.1 F)
2022	-10.4 C (13.3 F)
2023	-13.8 C (7.2 F)
2024	-11.5 C (11.3 F)
2025	-9.3 C (15.3 F)
2026	-9.7 C (14.5 F)

Wettest day (Rx1day)

The wettest day of the year at Nemuro, 1931 to 2026. The record is 326.0 mm (12.8 in) in 2026, marked on the chart; the median year is 72.0 mm (2.8 in).

Wettest day (Rx1day) at Nemuro by year
Year	Wettest day (Rx1day)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	68.1 mm (2.7 in)
1954	67.1 mm (2.6 in)
1955	138.9 mm (5.5 in)
1956	48.0 mm (1.9 in)
1957	93.0 mm (3.7 in)
1958	93.0 mm (3.7 in)
1959	69.1 mm (2.7 in)
1960	77.0 mm (3.0 in)
1961	62.0 mm (2.4 in)
1962	56.0 mm (2.2 in)
1963	137.0 mm (5.4 in)
1964	70.0 mm (2.8 in)
1965	59.0 mm (2.3 in)
1966	109.0 mm (4.3 in)
1967	50.0 mm (2.0 in)
1968	58.0 mm (2.3 in)
1969	51.0 mm (2.0 in)
1970	57.0 mm (2.2 in)
1971	62.0 mm (2.4 in)
1972	144.0 mm (5.7 in)
1973	50.0 mm (2.0 in)
1974	73.0 mm (2.9 in)
1975	55.0 mm (2.2 in)
1976	76.0 mm (3.0 in)
1977	64.0 mm (2.5 in)
1978	83.0 mm (3.3 in)
1979	143.0 mm (5.6 in)
1980	36.0 mm (1.4 in)
1981	89.0 mm (3.5 in)
1982	72.0 mm (2.8 in)
1983	65.0 mm (2.6 in)
1984	67.0 mm (2.6 in)
1985	77.0 mm (3.0 in)
1986	148.0 mm (5.8 in)
1987	71.0 mm (2.8 in)
1988	54.0 mm (2.1 in)
1989	139.0 mm (5.5 in)
1990	100.0 mm (3.9 in)
1991	75.0 mm (3.0 in)
1992	212.0 mm (8.3 in)
1993	69.0 mm (2.7 in)
1994	64.0 mm (2.5 in)
1995	36.0 mm (1.4 in)
1996	126.0 mm (5.0 in)
1997	101.0 mm (4.0 in)
1998	136.0 mm (5.4 in)
1999	72.0 mm (2.8 in)
2000	54.0 mm (2.1 in)
2001	112.8 mm (4.4 in)
2002	50.5 mm (2.0 in)
2003	112.0 mm (4.4 in)
2004	44.5 mm (1.8 in)
2006	101.1 mm (4.0 in)
2007	80.5 mm (3.2 in)
2008	83.1 mm (3.3 in)
2009	88.4 mm (3.5 in)
2010	51.1 mm (2.0 in)
2011	86.1 mm (3.4 in)
2012	101.1 mm (4.0 in)
2013	78.0 mm (3.1 in)
2014	108.0 mm (4.3 in)
2015	150.9 mm (5.9 in)
2016	99.1 mm (3.9 in)
2017	66.0 mm (2.6 in)
2018	79.0 mm (3.1 in)
2019	91.9 mm (3.6 in)
2020	57.9 mm (2.3 in)
2021	68.1 mm (2.7 in)
2022	70.1 mm (2.8 in)
2023	40.9 mm (1.6 in)
2024	45.0 mm (1.8 in)
2025	28.0 mm (1.1 in)
2026	326.0 mm (12.8 in)

Wettest five days (Rx5day)

The wettest five days of the year at Nemuro, 1931 to 2026. The record is 418.8 mm (16.5 in) in 2026, marked on the chart; the median year is 109.2 mm (4.3 in).

Wettest five days (Rx5day) at Nemuro by year
Year	Wettest five days (Rx5day)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	96.5 mm (3.8 in)
1954	82.0 mm (3.2 in)
1955	207.0 mm (8.1 in)
1956	82.0 mm (3.2 in)
1957	156.6 mm (6.2 in)
1958	117.1 mm (4.6 in)
1959	102.6 mm (4.0 in)
1960	101.0 mm (4.0 in)
1961	104.0 mm (4.1 in)
1962	102.0 mm (4.0 in)
1963	149.0 mm (5.9 in)
1964	112.0 mm (4.4 in)
1965	70.0 mm (2.8 in)
1966	141.0 mm (5.6 in)
1967	123.0 mm (4.8 in)
1968	75.0 mm (3.0 in)
1969	59.0 mm (2.3 in)
1970	69.0 mm (2.7 in)
1971	113.0 mm (4.4 in)
1972	157.0 mm (6.2 in)
1973	104.0 mm (4.1 in)
1974	82.0 mm (3.2 in)
1975	142.0 mm (5.6 in)
1976	105.0 mm (4.1 in)
1977	92.0 mm (3.6 in)
1978	116.0 mm (4.6 in)
1979	148.0 mm (5.8 in)
1980	58.0 mm (2.3 in)
1981	154.0 mm (6.1 in)
1982	73.0 mm (2.9 in)
1983	89.0 mm (3.5 in)
1984	135.0 mm (5.3 in)
1985	86.0 mm (3.4 in)
1986	163.0 mm (6.4 in)
1987	128.0 mm (5.0 in)
1988	126.0 mm (5.0 in)
1989	165.0 mm (6.5 in)
1990	161.0 mm (6.3 in)
1991	108.0 mm (4.3 in)
1992	264.0 mm (10.4 in)
1993	79.0 mm (3.1 in)
1994	104.0 mm (4.1 in)
1995	86.0 mm (3.4 in)
1996	160.0 mm (6.3 in)
1997	196.0 mm (7.7 in)
1998	234.0 mm (9.2 in)
1999	130.0 mm (5.1 in)
2000	93.0 mm (3.7 in)
2001	189.0 mm (7.4 in)
2002	35.1 mm (1.4 in)
2003	62.1 mm (2.4 in)
2004	54.2 mm (2.1 in)
2006	140.0 mm (5.5 in)
2007	135.6 mm (5.3 in)
2008	167.2 mm (6.6 in)
2009	110.0 mm (4.3 in)
2010	96.3 mm (3.8 in)
2011	114.1 mm (4.5 in)
2012	109.2 mm (4.3 in)
2013	99.6 mm (3.9 in)
2014	145.6 mm (5.7 in)
2015	155.4 mm (6.1 in)
2016	147.0 mm (5.8 in)
2017	108.7 mm (4.3 in)
2018	130.5 mm (5.1 in)
2019	97.8 mm (3.9 in)
2020	99.5 mm (3.9 in)
2021	97.0 mm (3.8 in)
2022	139.5 mm (5.5 in)
2023	60.0 mm (2.4 in)
2024	85.4 mm (3.4 in)
2025	28.0 mm (1.1 in)
2026	418.8 mm (16.5 in)

Longest dry spell (CDD)

The longest dry spell of the year at Nemuro, 1931 to 2026. The record is 30 days in 1984, marked on the chart; the median year is 16 days.

Longest dry spell (CDD) at Nemuro by year
Year	Longest dry spell (CDD)
1931	n/a
1932	n/a
1933	n/a
1934	n/a
1935	n/a
1936	n/a
1937	n/a
1938	n/a
1939	n/a
1940	n/a
1941	n/a
1942	n/a
1943	n/a
1944	n/a
1945	n/a
1946	n/a
1947	n/a
1948	n/a
1949	n/a
1950	n/a
1951	n/a
1952	n/a
1953	8 days
1954	12 days
1955	8 days
1956	9 days
1957	8 days
1958	9 days
1959	9 days
1960	10 days
1961	14 days
1962	16 days
1963	17 days
1964	21 days
1965	11 days
1966	13 days
1967	14 days
1968	15 days
1969	22 days
1970	19 days
1971	17 days
1972	12 days
1973	13 days
1974	12 days
1975	11 days
1976	16 days
1977	13 days
1978	17 days
1979	12 days
1980	23 days
1981	19 days
1982	18 days
1983	14 days
1984	30 days
1985	21 days
1986	17 days
1987	13 days
1988	29 days
1989	24 days
1990	19 days
1991	13 days
1992	24 days
1993	14 days
1994	14 days
1995	16 days
1996	15 days
1997	19 days
1998	20 days
1999	17 days
2000	19 days
2001	n/a
2002	2 days
2003	11 days
2004	18 days
2006	22 days
2007	23 days
2008	24 days
2009	15 days
2010	10 days
2011	24 days
2012	22 days
2013	12 days
2014	19 days
2015	14 days
2016	20 days
2017	18 days
2018	17 days
2019	26 days
2020	19 days
2021	13 days
2022	29 days
2023	15 days
2024	21 days
2025	9 days
2026	8 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

71 years with a frost

Across 71 years with a frost, the median last spring frost at Nemuro falls on 1 May and the median first autumn frost on 9 November, which leaves a median of 193 days between them.

In 1972 to 2025 the median growing season was 196 days. That is 6 days more than in 1931 to 1960.

Fitted over all years, the growing season changes by +2.0 days per decade at this station.

Frost dates and growing season at Nemuro
Measure	Median, all years	Earliest period (1931 to 1960)	Recent period (1972 to 2025)	Recent against earliest	Fitted trend
Last spring frost	1 May	2 May	28 April	4 days earlier	-1.6 days per decade
First autumn frost	9 November	11 November	8 November	3 days earlier	+0.4 days per decade
Growing days	193 days	190 days	196 days	6 days more	+2.0 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

59 years, 1961 to 2024

A day with at least 73.8 mm (2.9 in) of rain is expected about once in 2 years. A day with at least 213.5 mm (8.4 in) of rain is expected about once in 100 years.

Rainfall return levels at Nemuro: the daily rain expected about once in a given number of years
Expected about once in	A day with at least	Note
2 years	73.8 mm (2.9 in)
5 years	103.2 mm (4.1 in)
10 years	125.5 mm (4.9 in)
25 years	157.5 mm (6.2 in)
50 years	184.2 mm (7.3 in)
100 years	213.5 mm (8.4 in)	Longer than the 59 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, 59 years of values from 1961 to 2024.

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: 212.0 mm (8.3 in) in 1992; 150.9 mm (5.9 in) in 2015; 148.0 mm (5.8 in) in 1986.

Station Changes

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

Download the Data

Data for Nemuro standing records by year: CSV or JSON. Field meanings are on the data page.
Data for Nemuro 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).