Monthly mean daily maximum temperature (°C)

WAKKANAI   WMO Station ID:47401 Lat 45^o24.9'N  Lon 141^o40.7'E

Year	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec	Annual
1938	-2.9	-2.8	2.1	7.8	13.0	14.6	21.3	25.4	19.3	13.9	5.7	-2.8	9.6
1939	-5.6	-4.0	1.3	7.3	10.8	16.6	20.7	23.5	20.5	12.7	6.1	-0.5	9.1
1940	-3.8	-3.4	1.9	6.5	12.2	14.4	19.8	23.2	19.0	14.0	6.8	1.2	9.3
1941	-4.2	-3.7	-0.1	6.5	11.3	14.7 )	15.4	19.4	19.2	12.7	7.4	-0.6	8.2
1942	-5.9	-5.7	2.0	6.1	10.2	15.3	20.4	21.0	18.3	13.3	5.0	-1.0	8.3
1943	-2.2	-3.8	0.7	6.4	10.0	16.7	22.7	24.3	20.6	14.6	3.9	-1.2	9.4
1944	-5.8	-5.0	-0.2	4.3	12.6	16.8	22.0	24.3	19.5	14.1	3.8	-4.2	8.5
1945	-6.1	-4.8	0.4	6.8	7.9	14.4	17.0	21.5	20.3	14.3	6.5	-2.8	8.0
1946	-4.4	-3.6	-1.3	7.2	10.9	18.3	21.0	25.7	20.0	15.2	8.0	-0.6	9.7
1947	-2.6	-3.1	0.2	6.1	12.6	14.6	19.9	22.2	18.3	14.0	4.3	-2.4	8.7
1948	-0.6	-1.9	2.3	9.6	14.5	15.3	19.5	25.6	20.4	14.3	6.8	1.6	10.6
1949	-0.9	-0.5	-1.0	4.5	12.8	15.7	20.3	24.2	21.0	14.6	5.4	-1.5	9.6
1950	-3.5	-2.4	1.4	7.6	12.7	18.7	22.5	26.2	20.5	12.4	5.9	-0.7	10.1
1951	-4.5	-3.8	0.9	6.7	12.9	15.7	20.1	25.8	18.9	13.2	6.4	1.9	9.5
1952	-3.5	-4.9	0.4	7.1	12.1	17.0	19.7	23.0	20.6	14.8	3.6	-4.5	8.8
1953	-5.6	-4.7	1.4	6.8	9.9	14.4	19.8	22.6	21.1	14.2	1.5	-0.5	8.4
1954	-4.8	-2.0	0.3	6.8	10.8	14.7	17.0	19.9	20.4	12.7	5.8	0.6	8.5
1955	-4.2	-2.7	1.4	7.3	9.8	15.9	23.2	22.9	18.9	13.6	6.2	2.3	9.6
1956	-3.9	-2.6	0.9	8.5	14.7	14.6	16.5	18.6	20.5	16.1	5.3	-0.8	9.0
1957	-1.8	-3.4	-0.4	7.3	13.0	13.7	20.5	20.9	18.9	14.1	8.6	1.2	9.4
1958	-2.7	-1.8	0.6	7.3	12.0	15.8	20.7	21.2	20.1	13.8	6.8	2.0	9.7
1959	-5.2	-0.2	3.7	9.9	12.8	15.9	19.8	21.3	19.3	14.8	5.1	-1.5	9.6
1960	-5.5	-2.4	1.5	6.6	11.2	14.0	18.9	24.1	21.1	13.9	6.0	-1.8	9.0
1961	-5.4	-2.8	1.4	8.5	12.1	18.6	22.6	23.0	22.1	13.5	6.8	0.8	10.1
1962	-2.1	-2.3	0.2	10.0	13.4	16.2	19.8	20.2	20.0	13.0	5.5	1.1	9.6
1963	-1.8	-1.7	3.1	8.2	13.9	15.8	19.8	19.8	18.9	14.3	7.1	0.7	9.8
1964	-2.4	-5.0	1.3	6.9	13.9	15.3	18.4	20.5	18.2	13.0	5.9	0.6	8.9
1965	-2.3	-3.7	-0.3	5.6	12.5	16.9	18.5	22.0	18.8	14.7	5.1	0.1	9.0
1966	-2.7	-2.6	1.3	6.1	11.5	15.7	18.6	20.3	18.7	14.2	7.0	-2.5	8.8
1967	-3.9	-3.1	2.2	7.6	13.8	14.4	19.4	24.1	18.3	14.2	4.1	0.6	9.3
1968	-2.4	-2.2	4.1	9.3	12.1	17.8	20.0	20.6	18.7	11.7	7.6	2.2	10.0
1969	-5.0	-5.2	0.2	7.2	10.5	13.9	20.4	19.1	18.9	12.1	5.1	-3.3	7.8
1970	-4.8	-3.6	-1.5	7.6	14.4	15.9	20.5	22.3	19.6	13.5	7.0	-1.6	9.1
1971	-4.3	-4.0	0.3	6.7	11.4	15.2	18.6	20.3	17.9	14.3	5.7	0.2	8.5
1972	-2.8	-2.8	1.6	9.5	12.8	16.3	20.2	23.3	18.6	13.5	4.2	1.0	9.6
1973	-2.1	-2.9	-0.6	6.6	11.3	16.2	19.7	23.8	20.5	12.9	6.1	0.2	9.3
1974	-1.3	-2.7	0.2	6.7	11.5	15.1	20.3	21.6	19.3	12.9	4.4	-3.7	8.7
1975	-2.1	-4.1	0.7	6.7	11.5	16.3	18.6	23.5	19.9	13.3	6.7	-2.0	9.1
1976	-2.9	-1.2	0.5	6.6	12.1	14.8	20.8	20.1	18.5	13.0	3.6	-0.3	8.8
1977	-6.5	-4.6	1.5	6.4	11.3	15.3	21.1	22.9	20.6	14.8	6.9	0.7	9.2
1978	-4.5	-6.6	1.4	7.2	12.6	16.8	24.0	24.1	20.7	12.4	5.4	0.4	9.5
1979	-4.7	-1.9	-0.2	5.2	10.9	16.4	18.5	23.2	19.9	14.1	5.7	2.0	9.1
1980	-3.2	-4.8	0.3	4.6	11.1	16.6	18.9	19.4	19.0	12.7	7.0	1.1	8.6
1981	-3.8	-4.2	-0.2	8.5	11.3	15.1	20.0	21.0	18.7	13.3	3.1	1.7	8.7
1982	-3.1	-3.3	1.5	6.2	12.4	15.1	19.6	24.3	20.5	14.4	6.9	1.1	9.6
1983	-2.2	-5.7	0.4	9.8	11.0	11.3	17.6	21.6	18.5	11.3	7.1	-0.2	8.4
1984	-3.2	-4.9	-1.5	5.7	10.8	18.8	22.6	23.5	19.5	11.7	5.4	-1.5	8.9
1985	-6.8	-2.9	0.6	7.8	12.4	14.9	19.6	23.9	18.7	12.5	4.9	-2.2	8.6
1986	-4.9	-4.3	0.0	6.9	11.5	14.5	17.0	22.4	19.8	11.8	4.3	0.2	8.3
1987	-4.3	-3.2	0.5	6.6	11.7	15.8	20.4	20.2	19.4	13.6	4.7	-0.5	8.7
1988	-2.7	-4.5	0.3	6.7	11.2	15.6	17.4	23.2	19.0	12.9	4.6	0.9	8.7
1989	-0.4	-0.3	2.7	6.6	11.5	13.9	21.5	23.4	19.4	13.8	7.1	0.8	10.0
1990	-3.8	-0.2	3.7	8.3	12.1	16.3	22.1	22.6	20.0	15.8	9.0	3.2	10.8
1991	0.0	-1.6	0.7	7.3	13.1	17.2	19.3	21.6	19.2	14.6	6.1	0.1	9.8
1992	-1.5	-1.4	1.9	6.4	11.2	15.2	20.4	20.6	17.4	13.9	6.0	0.7	9.2
1993	-1.0	-1.3	1.7	5.6	11.6	13.1	18.6	20.2	19.2	13.8	6.2	0.8	9.0
1994	-4.1	-0.9	0.6	6.8	13.5	15.9	20.1	24.4	20.2	14.5	7.3	-0.9	9.8
1995	-1.8	-2.1	1.6	7.6	14.2	15.7	21.1	21.6	19.2	14.8	7.6	0.9	10.0
1996	-2.2	-2.2	1.0	6.2	10.1	14.9	18.5	21.8	19.6	13.1	4.9	0.0	8.8
1997	-1.6	-1.2	1.2	7.2	10.7	14.0	19.9	19.5	18.8	12.9	9.0	1.5 )	9.3
1998	-4.8	-2.4	2.8	8.4	13.5	16.0	18.3	20.4	20.2	15.1	4.3	-0.1	9.3
1999	-2.1	-3.4	-0.5	7.7	11.1	17.9	19.8	23.9	20.9	14.1	6.2	0.0	9.6
2000	-2.1	-3.6	0.2	6.1	12.7	15.5	22.0	24.5	20.6	13.1	3.9	-1.6	9.3
2001	-4.3	-5.2	-0.1	7.7	11.8	15.8	20.3	21.7	18.4	13.2	6.4	-2.3	8.6
2002	-1.7	1.0	3.1	10.2	14.9	14.8	18.2	19.8	20.3	13.3	4.4	-2.3	9.7
2003	-2.3	-3.0	1.4	8.2	13.3	17.3	17.5	21.1	19.5	13.9	7.0	0.6	9.5
2004	-2.2	-0.8	2.0	7.3	14.1	17.5	19.5	22.7	20.5	14.8	8.5	0.5	10.4
2005	-2.6	-3.7	1.0	6.8	10.1	17.7	19.9	23.8	20.8	15.0	7.0	-0.4	9.6
2006	-3.6	-2.1	1.2	4.5	12.6	15.3	21.7	24.2	20.6	14.3	7.3	0.0	9.7
2007	-1.9	-0.6	1.6	6.6	10.5	17.7	20.2	23.1	19.8	14.0	5.5	-0.1	9.7
2008	-4.1	-2.4	3.0	9.9	11.9	15.4	20.7	21.2	21.0	14.2	6.2	2.2	9.9
2009	-0.5	-1.9	2.2	7.2	13.5	15.3	17.5	21.6	19.9	14.4	5.4	-0.2	9.5
2010	-1.2	-2.8	0.8	6.1	10.4	18.5	20.5	25.1	21.3	14.3	6.9	1.2	10.1
2011	-3.5	0.0	1.7	7.1	9.3	15.7	20.7 )	24.4	21.1	14.7	7.5	-0.5	9.9
2012	-3.6	-4.1	0.2	7.6	11.9	16.4	20.2	23.5	22.2	14.4	5.9	-0.7	9.5
2013	-4.1	-3.0	1.3	6.9	10.3	17.7	22.6	22.9	20.3	14.7	7.9	1.4	9.9
2014	-2.9	-2.0	1.0	6.5	12.3	17.4	22.2	22.9	19.7	13.8	7.7	0.0	9.9
2015	-1.1	0.2	4.4	8.9	13.1	15.2	20.2	21.7	20.6	13.0	5.8	2.0	10.3
2016	-3.5	-2.5	3.2	7.2	15.4	15.8	20.4	24.4	19.5	12.0	2.5	-0.2	9.5
2017	-2.4	-0.9	1.7	8.4	13.2	14.9	21.4	21.4	19.8	12.9	5.3	-1.1	9.6
2018	-1.6	-3.0	2.7	8.7	12.9	15.6	19.7	21.0	20.4	15.7	7.3	0.2	10.0
2019	-2.0	-2.3	2.3	8.5	16.7	16.3	21.1	20.6	21.1	15.3	5.3	0.2	10.3
2020	-1.8	-2.2	3.5	7.4	13.1	16.9	20.6	22.4	21.4	14.8	6.8	-1.4	10.1
2021	-3.8	-1.5	4.1	8.6	13.0	18.0	24.9	23.2	21.3	14.5	8.5	1.7	11.0
2022	-2.3	-1.8	3.0	9.1	14.1	15.2	21.7	24.2	21.7	14.7	8.1	-0.7	10.6
2023	-3.5	-2.4	6.0	9.0	13.8	18.7	22.0	24.1	22.9	16.0	7.4	0.2	11.2
2024	-1.3	-1.4	2.0	10.8	11.9 ]								2.5 ]

Remarks
The red lines, if any, indicate data inhomogeneity caused by changes in instrumentation, observation methods and/or site location.

Japan Meteorological Agency, 1-3-4 Otenachi, Chiyoda-ku, Tokyo 100-8122, Japan
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