Japan Weather Records in 2021

3,597 weather records set or tied in Japan in 2021, by type, with the calendar of record highs and lows and the records that still stand.

Key Facts for Japan in 2021

3,597 weather records were set or tied in Japan in 2021.
2,017 were record highs and 509 were record lows, counting maximum and minimum temperature.
3,189 records set in 2021 still stand in Japan.

Records per Year, by Type

2021 outlined

Records set or tied in Japan each year from 1961 to 2026, stacked by type. 2021 had 3,597.

Weather records per year in Japan, stacked by type, 2021 outlined
Year	Highest daily maximum	Lowest daily maximum	Highest daily minimum	Lowest daily minimum	Heaviest daily rainfall	Heaviest daily snowfall	Deepest snow cover	Total
1961	37	11	59	13	0	0	0	120
1962	30	10	27	10	0	0	0	77
1963	15	20	23	19	0	0	0	77
1964	13	28	17	27	0	0	0	85
1965	13	31	12	30	0	0	0	86
1966	22	27	24	24	0	0	0	97
1967	22	28	17	19	0	0	0	86
1968	17	17	24	16	0	0	0	74
1969	31	27	19	19	0	0	0	96
1970	18	12	15	22	0	0	0	67
1971	7	18	11	17	0	0	0	53
1972	15	5	16	4	0	0	0	40
1973	17	11	19	6	0	0	0	53
1974	6	14	7	10	0	0	0	37
1975	10	12	17	6	0	0	0	45
1976	14	14	13	14	0	0	0	55
1977	22	19	23	14	0	0	0	78
1978	20	13	21	7	0	0	0	61
1979	34	5	45	2	0	0	0	86
1980	17	16	30	12	0	0	0	75
1981	827	2,044	759	2,019	1,280	0	0	6,929
1982	988	1,277	1,172	1,254	1,286	0	0	5,977
1983	1,217	1,251	1,316	989	1,428	0	0	6,201
1984	954	2,118	1,020	1,352	929	3	8	6,384
1985	1,222	1,302	1,358	810	1,458	1	0	6,151
1986	599	1,194	453	931	1,063	6	1	4,247
1987	2,303	1,051	1,738	797	1,239	3	2	7,133
1988	1,081	1,215	877	762	1,108	2	0	5,045
1989	1,366	953	1,694	448	1,617	0	0	6,078
1990	1,181	140	750	91	740	1	1	2,904
1991	1,145	380	812	254	808	0	0	3,399
1992	753	477	351	441	854	2	0	2,878
1993	817	1,165	446	590	1,054	0	0	4,072
1994	2,839	220	1,028	188	846	2	0	5,123
1995	1,020	456	387	280	777	1	0	2,921
1996	1,067	995	439	571	784	1	0	3,857
1997	1,383	560	694	391	850	1	0	3,879
1998	2,454	316	1,618	182	1,254	3	1	5,828
1999	1,823	497	887	243	977	0	0	4,427
2000	1,468	363	604	170	843	0	0	3,448
2001	1,505	540	509	261	783	2	1	3,601
2002	1,634	905	666	433	831	0	0	4,469
2003	1,144	707	499	435	934	0	0	3,719
2004	2,050	342	917	218	1,128	0	0	4,655
2005	612	284	236	171	296	5	0	1,604
2006	1,021	415	590	189	1,015	0	0	3,230
2007	1,792	241	756	214	729	0	0	3,732
2008	1,193	458	521	204	776	0	0	3,152
2009	1,173	430	429	251	1,048	0	0	3,331
2010	2,116	671	1,223	226	1,143	0	0	5,379
2011	1,457	493	933	247	1,043	0	0	4,173
2012	941	420	528	288	926	0	0	3,103
2013	1,681	316	1,168	200	930	0	0	4,295
2014	726	322	456	186	1,121	0	0	2,811
2015	1,291	332	692	126	931	0	0	3,372
2016	1,774	284	1,079	132	1,015	0	0	4,284
2017	1,063	413	657	154	893	0	0	3,180
2018	2,230	423	1,124	198	1,040	0	0	5,015
2019	1,567	232	957	108	732	0	0	3,596
2020	1,400	185	1,198	105	770	0	0	3,658
2021	1,049	370	968	139	1,071	0	0	3,597
2022	1,516	187	1,110	88	687	0	0	3,588
2023	1,545	115	1,625	65	519	0	0	3,869
2024	1,710	26	2,043	32	803	0	0	4,614
2025	2,100	335	7,157	36	148	0	0	9,776
2026	921	175	3,938	55	1,559	0	0	6,648

Warm to Cold Ratio by Decade

Record highs per record low by decade in Japan: 1960s 1.1 to 1, 1970s 1.5 to 1, 1980s 1.0 to 1, 1990s 2.6 to 1, 2000s 2.7 to 1, 2010s 4.1 to 1, 2020s 15 to 1.

Standing Records by Year Set

2021: 3,189

Records still standing in Japan by the year they were set. 3,189 of them were set in 2021.

Standing records in Japan by the year they were set, 2021 highlighted
Year set	Standing records
1931	46
1932	20
1933	17
1934	30
1935	32
1936	31
1937	21
1938	28
1939	34
1940	31
1941	54
1942	32
1943	18
1944	59
1945	66
1946	24
1947	27
1948	27
1949	2,139
1950	703
1951	5,704
1952	4,701
1953	6,251
1954	6,427
1955	5,412
1956	5,899
1957	4,972
1958	4,840
1959	4,593
1960	4,548
1961	5,137
1962	3,819
1963	4,674
1964	4,268
1965	4,948
1966	6,292
1967	4,847
1968	4,657
1969	6,284
1970	5,120
1971	4,458
1972	4,773
1973	5,083
1974	4,635
1975	3,944
1976	6,278
1977	6,301
1978	4,201
1979	5,086
1980	6,133
1981	6,416
1982	4,886
1983	4,839
1984	6,187
1985	4,916
1986	3,952
1987	5,969
1988	4,243
1989	4,855
1990	1,966
1991	2,507
1992	2,401
1993	3,568
1994	3,392
1995	2,333
1996	3,456
1997	3,146
1998	4,741
1999	3,116
2000	2,123
2001	2,240
2002	3,161
2003	2,750
2004	3,208
2005	1,172
2006	2,285
2007	2,510
2008	2,175
2009	2,583
2010	3,961
2011	3,027
2012	2,462
2013	3,221
2014	2,421
2015	2,695
2016	3,636
2017	2,740
2018	4,264
2019	3,011
2020	3,322
2021	3,189
2022	3,175
2023	3,403
2024	4,059
2025	12,078
2026	6,011

Download the Data

Data for Japan in 2021: CSV or JSON. Field meanings are on the data page.

Sources: 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)) Made with Natural Earth. Public domain map data. Borders are Natural Earth's de facto depiction. Data as of 2026-10-12 (12 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Decade	Highs per low
1960s	1.12 to 1
1970s	1.54 to 1
1980s	0.97 to 1
1990s	2.62 to 1
2000s	2.69 to 1
2010s	4.12 to 1
2020s	14.94 to 1