Weather Records on 21 December 1918

41 weather records were set or tied worldwide on 21 December 1918. Highest significance: Woodstock, CA.

Key Facts for 21 December 1918

On 21 December 1918, 41 weather records were set or tied at long-record stations worldwide.
21 were record highs and 2 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 39 daily.
Woodstock set a daily record high maximum temperature of 11.1 C (52.0 F) on 21 December 1918.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 492 records.

Record Map

41 stations

41 station records on 21 December 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Woodstock	Canada	Record high maximum temperature	11.1 C (52.0 F)	22 of 100 (Routine)
Stockholm	Sweden	Record daily precipitation	8.7 mm (0.34 in)	20 of 100 (Routine)
Huron Rgnl AP	United States	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Svenska Hogarna	Sweden	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Escanaba	United States	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Buffalo	United States	Record high minimum temperature	6.7 C (44.1 F)	20 of 100 (Routine)
Green Bay	United States	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Concord	United States	Record high maximum temperature	11.7 C (53.1 F)	19 of 100 (Routine)
Maytown	Australia	Record daily precipitation	50.8 mm (2.0 in)	18 of 100 (Routine)
Port Stanley	Canada	Record high minimum temperature	4.4 C (39.9 F)	18 of 100 (Routine)
Metten	Germany	Record daily precipitation	10.8 mm (0.4 in)	18 of 100 (Routine)
Madison Wb City	United States	Record high minimum temperature	8.3 C (46.9 F)	18 of 100 (Routine)
Dubuque River	United States	Record high minimum temperature	8.3 C (46.9 F)	18 of 100 (Routine)
Moose Factory	Canada	Record high minimum temperature	1.1 C (34.0 F)	17 of 100 (Routine)
Lugansk	Ukraine	Record daily precipitation	17.7 mm (0.7 in)	17 of 100 (Routine)
Athens	United States	Record daily precipitation	43.2 mm (1.7 in)	17 of 100 (Routine)
La Crosse Wb City	United States	Record high minimum temperature	6.1 C (43.0 F)	17 of 100 (Routine)
Escanaba	United States	Record high minimum temperature	3.9 C (39.0 F)	17 of 100 (Routine)
Port Arthur	Canada	Record high minimum temperature	1.1 C (34.0 F)	16 of 100 (Routine)
Moose Factory	Canada	Record high maximum temperature	10.0 C (50.0 F)	16 of 100 (Routine)
Beatrice	Canada	Record daily precipitation	19.8 mm (0.8 in)	16 of 100 (Routine)
Guelph Oac	Canada	Record high maximum temperature	10.0 C (50.0 F)	16 of 100 (Routine)
Brantford	Canada	Record high maximum temperature	12.2 C (54.0 F)	15 of 100 (Routine)
Newport	United States	Record daily precipitation	22.9 mm (0.9 in)	15 of 100 (Routine)
Holmogadd A	Sweden	Record daily precipitation	3.8 mm (0.15 in)	14 of 100 (Routine)
Sevastopol',Mgs	Ukraine	Record daily precipitation	10.0 mm (0.4 in)	14 of 100 (Routine)
Green Bay	United States	Record high minimum temperature	5.6 C (42.1 F)	14 of 100 (Routine)
Lexington Bluegrass AP	United States	Record high minimum temperature	10.0 C (50.0 F)	14 of 100 (Routine)
Portland	United States	Record high maximum temperature	10.0 C (50.0 F)	13 of 100 (Routine)
Guelph Oac	Canada	Record high minimum temperature	1.7 C (35.1 F)	12 of 100 (Routine)
Jacksonville Wb City	United States	Record high minimum temperature	18.3 C (64.9 F)	11 of 100 (Routine)
Burketown Post Office	Australia	Record daily precipitation	15.7 mm (0.6 in)	10 of 100 (Routine)
Adelaide West Terrace	Australia	Record low minimum temperature	8.4 C (47.1 F)	9 of 100 (Routine)
White River	Canada	Record daily precipitation	7.1 mm (0.28 in)	9 of 100 (Routine)
Ottawa	Canada	Record high minimum temperature	-5.0 C (23.0 F)	9 of 100 (Routine)
Blackwood	Australia	Record daily precipitation	10.2 mm (0.4 in)	8 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low minimum temperature	9.4 C (48.9 F)	6 of 100 (Routine)
Berthong	Australia	Record daily precipitation	5.6 mm (0.22 in)	5 of 100 (Routine)
Bjuroklubb	Sweden	Record daily precipitation	8.1 mm (0.32 in)	5 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high minimum temperature	7.8 C (46.0 F)	4 of 100 (Routine)
Milwaukee Wb City	United States	Record high minimum temperature	4.4 C (39.9 F)	4 of 100 (Routine)

Counts by Type and Timescale

41 records

Records set or tied on 21 December 1918 by type: Highest daily maximum 6, Highest daily minimum 15, Lowest daily minimum 2, Heaviest daily rainfall 18.

Records on 21 December 1918 by type
Record type	Records
Highest daily maximum	6
Lowest daily maximum	0
Highest daily minimum	15
Lowest daily minimum	2
Heaviest daily rainfall	18
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 December 1918 by timescale: all-time 0, monthly 2, daily 39.

How Much Records Were Beaten By

39 broken records

Margins by which the 39 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 22.6. Ties are not counted.

Top 20 by Significance

21 December 1918

Top 20 records on 21 December 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 1918	Woodstock, CA	daily high max	11.1 C (52.0 F)	3.3 C (5.9 F)	42 years	22 of 100 (Routine)
21 December 1918	Stockholm, SE	daily rain	8.7 mm (0.34 in)	3.2 mm (0.13 in)	36 years	20 of 100 (Routine)
21 December 1918	Huron Rgnl AP, US	daily rain	8.1 mm (0.32 in)	5.1 mm (0.20 in)	28 years	20 of 100 (Routine)
21 December 1918	Svenska Hogarna, SE	daily rain	8.4 mm (0.33 in)	4.6 mm (0.18 in)	16 years	20 of 100 (Routine)
21 December 1918	Escanaba, US	daily rain	18.5 mm (0.7 in)	5.3 mm (0.21 in)	38 years	20 of 100 (Routine)
21 December 1918	Buffalo, US	daily high min	6.7 C (44.1 F)	2.3 C (4.1 F)	42 years	20 of 100 (Routine)
21 December 1918	Green Bay, US	daily rain	13.5 mm (0.5 in)	4.6 mm (0.18 in)	30 years	20 of 100 (Routine)
21 December 1918	Concord, US	daily high max	11.7 C (53.1 F)	1.7 C (3.1 F)	42 years	19 of 100 (Routine)
21 December 1918	Maytown, AU	daily rain	50.8 mm (2.0 in)	22.6 mm (0.9 in)	11 years	18 of 100 (Routine)
21 December 1918	Port Stanley, CA	daily high min	4.4 C (39.9 F)	1.6 C (2.9 F)	40 years	18 of 100 (Routine)
21 December 1918	Metten, DE	daily rain	10.8 mm (0.4 in)	4.7 mm (0.19 in)	23 years	18 of 100 (Routine)
21 December 1918	Madison Wb City, US	daily high min	8.3 C (46.9 F)	1.1 C (2.0 F)	40 years	18 of 100 (Routine)
21 December 1918	Dubuque River, US	daily high min	8.3 C (46.9 F)	2.2 C (4.0 F)	40 years	18 of 100 (Routine)
21 December 1918	Moose Factory, CA	daily high min	1.1 C (34.0 F)	10.5 C (18.9 F)	7 years	17 of 100 (Routine)
21 December 1918	Lugansk, UA	daily rain	17.7 mm (0.7 in)	3.4 mm (0.13 in)	16 years	17 of 100 (Routine)
21 December 1918	Athens, US	daily rain	43.2 mm (1.7 in)	12.2 mm (0.5 in)	7 years	17 of 100 (Routine)
21 December 1918	La Crosse Wb City, US	daily high min	6.1 C (43.0 F)	1.1 C (2.0 F)	42 years	17 of 100 (Routine)
21 December 1918	Escanaba, US	daily high min	3.9 C (39.0 F)	1.1 C (2.0 F)	40 years	17 of 100 (Routine)
21 December 1918	Port Arthur, CA	daily high min	1.1 C (34.0 F)	0.5 C (0.9 F)	40 years	16 of 100 (Routine)
21 December 1918	Moose Factory, CA	monthly high max	10.0 C (50.0 F)	1.7 C (3.1 F)	0 years	16 of 100 (Routine)

Significance is a score from 0 to 100 combining margin, the age of the old record and the length of the station's record. How it is computed.

The Same Date in Other Years

1793 to 1918

Records set or tied on this calendar date in each year from 1793 to 1918. 1918 had 41 records.

Counts for years before the ledger starts come from the same station rules.

Records on 12-21 in each year
Year	Records
1793	1
1794	1
1799	1
1801	2
1808	3
1825	1
1828	1
1839	1
1846	1
1850	1
1855	7
1859	1
1860	1
1868	1
1870	1
1871	2
1874	2
1875	3
1876	1
1877	1
1878	1
1879	1
1880	1
1884	1
1886	3
1889	1
1890	4
1893	4
1894	1
1895	5
1896	3
1897	3
1898	1
1900	8
1901	15
1902	5
1903	25
1904	3
1905	15
1906	15
1907	17
1908	19
1909	20
1910	29
1911	36
1912	23
1913	11
1914	107
1915	43
1916	40
1917	18
1918	41
1919	57
1920	30
1921	104
1922	34
1923	323
1924	377
1925	120
1926	178
1927	147
1928	70
1929	156
1930	66
1931	556
1932	150
1933	581
1934	230
1935	398
1936	323
1937	189
1938	145
1939	140
1940	622
1941	651
1942	968
1943	148
1944	762
1945	396
1946	495
1947	700
1948	297
1949	1,281
1950	504
1951	1,061
1952	197
1953	256
1954	444
1955	888
1956	672
1957	846
1958	516
1959	272
1960	585
1961	254
1962	563
1963	1,137
1964	613
1965	247
1966	400
1967	1,923
1968	818
1969	828
1970	547
1971	680
1972	651
1973	1,292
1974	374
1975	548
1976	446
1977	470
1978	517
1979	558
1980	726
1981	1,476
1982	702
1983	3,324
1984	1,012
1985	979
1986	404
1987	775
1988	717
1989	3,203
1990	2,701
1991	1,125
1992	751
1993	967
1994	793
1995	878
1996	1,114
1997	810
1998	1,142
1999	851
2000	944
2001	650
2002	579
2003	1,103
2004	675
2005	606
2006	1,443
2007	946
2008	1,062
2009	1,097
2010	2,039
2011	653
2012	759
2013	1,029
2014	878
2015	1,173
2016	543
2017	459
2018	742
2019	755
2020	965
2021	323
2022	528
2023	1,170
2024	778
2025	1,099

Download the Data

Data for records on 1918-12-21: 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 2026-10-14 (14 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).

Margin	Records
0 to 5	32
5 to 10	3
10 to 15	3
15 to 20	0
20 to 25	1