Weather Records on 9 December 1918

40 weather records were set or tied worldwide on 9 December 1918. Highest significance: Charlottetown, CA.

Key Facts for 9 December 1918

On 9 December 1918, 40 weather records were set or tied at long-record stations worldwide.
27 were record highs and 1 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 40 daily.
Charlottetown set a daily record snowfall of 15.2 cm (6.0 in) on 9 December 1918.
Across 157 earlier years (1796 to 2025) the same calendar date averaged 478 records.

Record Map

40 stations

40 station records on 9 December 1918 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 December 1918: highest significance records shown on the map
Station	Country	Type	Value	Significance
Charlottetown	Canada	Record daily snowfall	15.2 cm (6.0 in)	25 of 100 (Routine)
Cape May 2 NW	United States	Record high maximum temperature	16.7 C (62.1 F)	22 of 100 (Routine)
Orenburg	Russia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Tabl.Mtn Molteno Rsv	South Africa	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Atlantic City Marina	United States	Record high maximum temperature	16.7 C (62.1 F)	18 of 100 (Routine)
St John's	Canada	Record low minimum temperature	-13.9 C (7.0 F)	17 of 100 (Routine)
Malvern	United States	Record high maximum temperature	23.9 C (75.0 F)	16 of 100 (Routine)
Harrisburg - Coop	United States	Record high minimum temperature	6.7 C (44.1 F)	15 of 100 (Routine)
Little Rock St Capitol	United States	Record high minimum temperature	16.7 C (62.1 F)	14 of 100 (Routine)
Chaplin	Canada	Record daily precipitation	2.0 mm (0.08 in)	13 of 100 (Routine)
Cape York Post Office	Australia	Record daily precipitation	2.3 mm (0.09 in)	12 of 100 (Routine)
Moose Factory	Canada	Record high maximum temperature	5.6 C (42.1 F)	12 of 100 (Routine)
Table.Mtn Platteklip	South Africa	Record daily precipitation	34.5 mm (1.4 in)	12 of 100 (Routine)
Houston Wb City	United States	Record high minimum temperature	17.8 C (64.0 F)	12 of 100 (Routine)
Huron Rgnl AP	United States	Record daily precipitation	5.8 mm (0.23 in)	12 of 100 (Routine)
Lexington Bluegrass AP	United States	Record high minimum temperature	13.3 C (55.9 F)	12 of 100 (Routine)
Medicine Hat A	Canada	Record high maximum temperature	14.4 C (57.9 F)	11 of 100 (Routine)
Point Escuminac	Canada	Record daily snowfall	13.0 cm (5.1 in)	11 of 100 (Routine)
Harnosand	Sweden	Record high minimum temperature	1.0 C (33.8 F)	11 of 100 (Routine)
Robe Comparison	Australia	Record high minimum temperature	17.2 C (63.0 F)	10 of 100 (Routine)
Madison Wb City	United States	Record high minimum temperature	2.2 C (36.0 F)	10 of 100 (Routine)
Huron Rgnl AP	United States	Record high minimum temperature	-0.6 C (30.9 F)	10 of 100 (Routine)
Medicine Hat A	Canada	Record high minimum temperature	3.3 C (37.9 F)	9 of 100 (Routine)
Newport	United States	Record high maximum temperature	21.7 C (71.1 F)	9 of 100 (Routine)
Dubuque River	United States	Record high minimum temperature	4.4 C (39.9 F)	9 of 100 (Routine)
Adelaide West Terrace	Australia	Record high minimum temperature	28.1 C (82.6 F)	8 of 100 (Routine)
Bic	Canada	Record daily precipitation	10.2 mm (0.4 in)	8 of 100 (Routine)
Bic	Canada	Record daily snowfall	10.2 cm (4.0 in)	8 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record high minimum temperature	-0.5 C (31.1 F)	6 of 100 (Routine)
Bourke Post Office	Australia	Record high maximum temperature	46.1 C (115.0 F)	3 of 100 (Routine)
Sydney	Canada	Record daily snowfall	17.8 cm (7.0 in)	3 of 100 (Routine)
Little Rock St Capitol	United States	Record high maximum temperature	22.2 C (72.0 F)	3 of 100 (Routine)
Washington	United States	Record high maximum temperature	19.4 C (66.9 F)	3 of 100 (Routine)
Swift Current	Canada	Record high minimum temperature	1.1 C (34.0 F)	2 of 100 (Routine)
Sveg	Sweden	Record high minimum temperature	-1.5 C (29.3 F)	2 of 100 (Routine)
Cape May 2 NW	United States	Record high minimum temperature	7.8 C (46.0 F)	2 of 100 (Routine)
Vineland	United States	Record high maximum temperature	16.7 C (62.1 F)	2 of 100 (Routine)
Milwaukee Wb City	United States	Record high minimum temperature	3.3 C (37.9 F)	2 of 100 (Routine)
Houston Wb City	United States	Record high maximum temperature	24.4 C (75.9 F)	2 of 100 (Routine)
Bird Rocks	Canada	Record daily snowfall	7.6 cm (3.0 in)	1 of 100 (Routine)

Counts by Type and Timescale

40 records

Records set or tied on 9 December 1918 by type: Highest daily maximum 11, Highest daily minimum 16, Lowest daily minimum 1, Heaviest daily rainfall 7, Heaviest daily snowfall 5.

Records on 9 December 1918 by type
Record type	Records
Highest daily maximum	11
Lowest daily maximum	0
Highest daily minimum	16
Lowest daily minimum	1
Heaviest daily rainfall	7
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 9 December 1918 by timescale: all-time 0, monthly 0, daily 40.

How Much Records Were Beaten By

29 broken records

Margins by which the 29 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 50.0. Ties are not counted.

Top 20 by Significance

9 December 1918

Top 20 records on 9 December 1918 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 December 1918	Charlottetown, CA	daily snowfall	15.2 cm (6.0 in)	5.0 cm (2.0 in)	45 years	25 of 100 (Routine)
9 December 1918	Cape May 2 NW, US	daily high max	16.7 C (62.1 F)	3.9 C (7.0 F)	34 years	22 of 100 (Routine)
9 December 1918	Orenburg, RU	daily rain	14.0 mm (0.6 in)	8.8 mm (0.35 in)	25 years	20 of 100 (Routine)
9 December 1918	Tabl.Mtn Molteno Rsv, ZA	daily rain	23.6 mm (0.9 in)	17.2 mm (0.7 in)	4 years	20 of 100 (Routine)
9 December 1918	Atlantic City Marina, US	daily high max	16.7 C (62.1 F)	3.9 C (7.0 F)	20 years	18 of 100 (Routine)
9 December 1918	St John's, CA	daily low min	-13.9 C (7.0 F)	2.8 C (5.0 F)	27 years	17 of 100 (Routine)
9 December 1918	Malvern, US	daily high max	23.9 C (75.0 F)	4.5 C (8.1 F)	18 years	16 of 100 (Routine)
9 December 1918	Harrisburg - Coop, US	daily high min	6.7 C (44.1 F)	2.3 C (4.1 F)	28 years	15 of 100 (Routine)
9 December 1918	Little Rock St Capitol, US	daily high min	16.7 C (62.1 F)	2.3 C (4.1 F)	20 years	14 of 100 (Routine)
9 December 1918	Chaplin, CA	daily rain	2.0 mm (0.08 in)	0.7 mm (0.03 in)	28 years	13 of 100 (Routine)
9 December 1918	Cape York Post Office, AU	daily rain	2.3 mm (0.09 in)	0.8 mm (0.03 in)	30 years	12 of 100 (Routine)
9 December 1918	Moose Factory, CA	daily high max	5.6 C (42.1 F)	2.3 C (4.1 F)	20 years	12 of 100 (Routine)
9 December 1918	Table.Mtn Platteklip, ZA	daily rain	34.5 mm (1.4 in)	0.7 mm (0.03 in)	32 years	12 of 100 (Routine)
9 December 1918	Houston Wb City, US	daily high min	17.8 C (64.0 F)	1.1 C (2.0 F)	23 years	12 of 100 (Routine)
9 December 1918	Huron Rgnl AP, US	daily rain	5.8 mm (0.23 in)	0.7 mm (0.03 in)	24 years	12 of 100 (Routine)
9 December 1918	Lexington Bluegrass AP, US	daily high min	13.3 C (55.9 F)	3.3 C (5.9 F)	11 years	12 of 100 (Routine)
9 December 1918	Medicine Hat A, CA	daily high max	14.4 C (57.9 F)	0.5 C (0.9 F)	27 years	11 of 100 (Routine)
9 December 1918	Point Escuminac, CA	daily snowfall	13.0 cm (5.1 in)	4.9 cm (1.9 in)	5 years	11 of 100 (Routine)
9 December 1918	Harnosand, SE	daily high min	1.0 C (33.8 F)	0.5 C (0.9 F)	29 years	11 of 100 (Routine)
9 December 1918	Robe Comparison, AU	daily high min	17.2 C (63.0 F)	1.6 C (2.9 F)	8 years	10 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

1796 to 1918

Records set or tied on this calendar date in each year from 1796 to 1918. 1918 had 40 records.

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

Records on 12-09 in each year
Year	Records
1796	1
1820	1
1825	3
1831	1
1844	1
1856	1
1860	1
1862	1
1867	2
1868	1
1869	1
1871	3
1872	1
1873	2
1876	2
1878	4
1879	9
1880	1
1882	3
1883	1
1885	2
1886	2
1887	1
1889	1
1891	3
1893	1
1894	1
1895	3
1896	1
1897	4
1898	3
1899	5
1900	1
1901	4
1902	18
1903	7
1904	2
1905	9
1906	15
1907	28
1908	5
1909	18
1910	36
1911	31
1912	18
1913	37
1914	57
1915	139
1916	366
1917	106
1918	40
1919	58
1920	221
1921	58
1922	311
1923	203
1924	164
1925	93
1926	113
1927	356
1928	110
1929	192
1930	211
1931	434
1932	339
1933	250
1934	364
1935	263
1936	143
1937	348
1938	329
1939	1,030
1940	251
1941	144
1942	370
1943	496
1944	327
1945	178
1946	1,308
1947	303
1948	278
1949	299
1950	382
1951	849
1952	553
1953	347
1954	226
1955	352
1956	672
1957	565
1958	678
1959	217
1960	426
1961	818
1962	377
1963	642
1964	547
1965	706
1966	968
1967	639
1968	482
1969	347
1970	987
1971	655
1972	1,776
1973	679
1974	629
1975	668
1976	868
1977	1,548
1978	2,060
1979	693
1980	760
1981	748
1982	589
1983	664
1984	588
1985	1,074
1986	658
1987	1,007
1988	939
1989	1,270
1990	844
1991	878
1992	791
1993	912
1994	1,071
1995	1,247
1996	946
1997	1,214
1998	769
1999	774
2000	920
2001	505
2002	1,052
2003	824
2004	1,108
2005	1,714
2006	1,718
2007	1,124
2008	1,052
2009	2,442
2010	1,726
2011	496
2012	753
2013	1,018
2014	510
2015	1,054
2016	679
2017	715
2018	626
2019	614
2020	571
2021	674
2022	666
2023	907
2024	422
2025	1,602

Download the Data

Data for records on 1918-12-09: 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 2026-10-17 (17 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Histogram of margins by which records were beaten on 9 December 1918
Margin	Records
0 to 10	25
10 to 20	1
20 to 30	1
30 to 40	0
40 to 50	2