Weather Records on 9 December 1940

251 weather records were set or tied worldwide on 9 December 1940. Highest significance: Fogo, CA.

Key Facts for 9 December 1940

On 9 December 1940, 251 weather records were set or tied at long-record stations worldwide.
176 were record highs and 3 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 242 daily.
Fogo set a daily record precipitation of 31.5 mm (1.2 in) on 9 December 1940.
Across 157 earlier years (1796 to 2025) the same calendar date averaged 477 records.

Record Map

251 stations

251 station records on 9 December 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 December 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Fogo	Canada	Record daily precipitation	31.5 mm (1.2 in)	46 of 100 (Notable)
Ivanhoe Station	Australia	Record daily precipitation	58.4 mm (2.3 in)	40 of 100 (Notable)
Avoca (Railway House)	Australia	Record daily precipitation	25.7 mm (1.0 in)	40 of 100 (Notable)
Maatsuyker Island Lighthouse	Australia	Record daily precipitation	29.2 mm (1.1 in)	36 of 100 (Notable)
Warmun	Australia	Record daily precipitation	42.7 mm (1.7 in)	31 of 100 (Routine)
Dibrugarh Obsy	India	Record daily precipitation	28.4 mm (1.1 in)	31 of 100 (Routine)
Oberon (Jenolan Caves)	Australia	Record daily precipitation	41.7 mm (1.6 in)	30 of 100 (Routine)
Griggsville	United States	Record high maximum temperature	21.7 C (71.1 F)	30 of 100 (Routine)
Fayette	United States	Record high maximum temperature	22.2 C (72.0 F)	28 of 100 (Routine)
Columbia Wb City	United States	Record high maximum temperature	22.8 C (73.0 F)	28 of 100 (Routine)
Savanne	Canada	Record daily snowfall	12.7 cm (5.0 in)	27 of 100 (Routine)
Colusa Brg	United States	Record high maximum temperature	22.8 C (73.0 F)	27 of 100 (Routine)
Truchas	United States	Record daily snowfall	20.8 cm (8.2 in)	27 of 100 (Routine)
Lorraine	Australia	Record daily precipitation	49.5 mm (1.9 in)	26 of 100 (Routine)
Parasala	India	Record daily precipitation	51.3 mm (2.0 in)	25 of 100 (Routine)
Wilton	India	Record daily precipitation	41.9 mm (1.6 in)	23 of 100 (Routine)
Quincy	United States	Record high maximum temperature	21.7 C (71.1 F)	21 of 100 (Routine)
La Sal	United States	Record high maximum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
Marshall	United States	Record high maximum temperature	21.7 C (71.1 F)	21 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Narva	Estonia	Record daily precipitation	15.9 mm (0.6 in)	20 of 100 (Routine)
Dum Dooma /Sookerating Aab	India	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Jundah Post Office	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Eurugabah Station	Australia	Record daily precipitation	3.0 mm (0.12 in)	20 of 100 (Routine)
Savanne	Canada	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Truchas	United States	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Milo Station	Australia	Record daily precipitation	9.9 mm (0.39 in)	20 of 100 (Routine)
Barellan Post Office	Australia	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Jaipur	India	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Heerde	Netherlands	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Regina Int'l A	Canada	Record daily precipitation	3.6 mm (0.14 in)	20 of 100 (Routine)
Regina Int'l A	Canada	Record daily snowfall	3.6 cm (1.4 in)	20 of 100 (Routine)
Tezpur	India	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Arnhem	Netherlands	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Ponce 4 E	Puerto Rico [United States]	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Kjahta	Russia	Record high minimum temperature	-14.1 C (6.6 F)	20 of 100 (Routine)
Sonora	United States	Record high maximum temperature	25.6 C (78.1 F)	20 of 100 (Routine)
Independence	United States	Record high maximum temperature	23.9 C (75.0 F)	20 of 100 (Routine)
Crosby	United States	Record daily precipitation	2.5 mm (0.10 in)	20 of 100 (Routine)
Crosby	United States	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)
Concordia ASOS	United States	Record high minimum temperature	4.4 C (39.9 F)	20 of 100 (Routine)
Argyle Downs	Australia	Record daily precipitation	30.7 mm (1.2 in)	19 of 100 (Routine)
Dhakuakhana	India	Record daily precipitation	16.0 mm (0.6 in)	19 of 100 (Routine)
Lawrence	United States	Record high maximum temperature	20.0 C (68.0 F)	19 of 100 (Routine)
Tribune 1W	United States	Record high minimum temperature	-1.1 C (30.0 F)	19 of 100 (Routine)
Moran India	India	Record daily precipitation	17.3 mm (0.7 in)	18 of 100 (Routine)
Granite Reef Dam	United States	Record high minimum temperature	11.7 C (53.1 F)	18 of 100 (Routine)
Cheyenne Wells 2NE	United States	Record high minimum temperature	1.7 C (35.1 F)	18 of 100 (Routine)
Roseau	United States	Record daily precipitation	0.5 mm (0.02 in)	18 of 100 (Routine)
Jamestown State Hosp	United States	Record snow depth	5.1 cm (2.0 in)	18 of 100 (Routine)
Branxholme	Australia	Record daily precipitation	13.7 mm (0.5 in)	17 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	13.3 C (55.9 F)	17 of 100 (Routine)
Saint Helena	United States	Record high maximum temperature	24.4 C (75.9 F)	17 of 100 (Routine)
Burlington	United States	Record high maximum temperature	21.1 C (70.0 F)	17 of 100 (Routine)
Emporia 1 S	United States	Record high maximum temperature	21.1 C (70.0 F)	17 of 100 (Routine)
Donors Hill Station	Australia	Record daily precipitation	53.3 mm (2.1 in)	16 of 100 (Routine)
Euabalong (Lachlan St)	Australia	Record daily precipitation	21.8 mm (0.9 in)	16 of 100 (Routine)
Randwick Bowling Club	Australia	Record daily precipitation	29.0 mm (1.1 in)	16 of 100 (Routine)
Low Head (Comparison)	Australia	Record low maximum temperature	12.8 C (55.0 F)	16 of 100 (Routine)
Ottawa	United States	Record high maximum temperature	20.0 C (68.0 F)	16 of 100 (Routine)

Counts by Type and Timescale

251 records

Records set or tied on 9 December 1940 by type: Highest daily maximum 95, Lowest daily maximum 3, Highest daily minimum 81, Heaviest daily rainfall 62, Heaviest daily snowfall 6, Deepest snow cover 4.

Records on 9 December 1940 by type
Record type	Records
Highest daily maximum	95
Lowest daily maximum	3
Highest daily minimum	81
Lowest daily minimum	0
Heaviest daily rainfall	62
Heaviest daily snowfall	6
Deepest snow cover	4

Records on 9 December 1940 by timescale: all-time 0, monthly 9, daily 242.

How Much Records Were Beaten By

191 broken records

Margins by which the 191 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 106.0. Ties are not counted.

Top 20 by Significance

9 December 1940

Top 20 records on 9 December 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 December 1940	Fogo, CA	daily rain	31.5 mm (1.2 in)	18.8 mm (0.7 in)	65 years	46 of 100 (Notable)
9 December 1940	Ivanhoe Station, AU	daily rain	58.4 mm (2.3 in)	39.3 mm (1.5 in)	29 years	40 of 100 (Notable)
9 December 1940	Avoca (Railway House), AU	daily rain	25.7 mm (1.0 in)	20.6 mm (0.8 in)	40 years	40 of 100 (Notable)
9 December 1940	Maatsuyker Island Lighthouse, AU	daily rain	29.2 mm (1.1 in)	17.3 mm (0.7 in)	17 years	36 of 100 (Notable)
9 December 1940	Warmun, AU	daily rain	42.7 mm (1.7 in)	29.0 mm (1.1 in)	32 years	31 of 100 (Routine)
9 December 1940	Dibrugarh Obsy, IN	daily rain	28.4 mm (1.1 in)	20.8 mm (0.8 in)	8 years	31 of 100 (Routine)
9 December 1940	Oberon (Jenolan Caves), AU	daily rain	41.7 mm (1.6 in)	20.1 mm (0.8 in)	20 years	30 of 100 (Routine)
9 December 1940	Griggsville, US	monthly high max	21.7 C (71.1 F)	1.7 C (3.1 F)	46 years	30 of 100 (Routine)
9 December 1940	Fayette, US	monthly high max	22.2 C (72.0 F)	0.5 C (0.9 F)	46 years	28 of 100 (Routine)
9 December 1940	Columbia Wb City, US	monthly high max	22.8 C (73.0 F)	0.6 C (1.1 F)	43 years	28 of 100 (Routine)
9 December 1940	Savanne, CA	daily snowfall	12.7 cm (5.0 in)	5.1 cm (2.0 in)	38 years	27 of 100 (Routine)
9 December 1940	Colusa Brg, US	daily high max	22.8 C (73.0 F)	3.4 C (6.1 F)	46 years	27 of 100 (Routine)
9 December 1940	Truchas, US	daily snowfall	20.8 cm (8.2 in)	10.6 cm (4.2 in)	16 years	27 of 100 (Routine)
9 December 1940	Lorraine, AU	daily rain	49.5 mm (1.9 in)	34.3 mm (1.4 in)	17 years	26 of 100 (Routine)
9 December 1940	Parasala, IN	daily rain	51.3 mm (2.0 in)	36.1 mm (1.4 in)	9 years	25 of 100 (Routine)
9 December 1940	Wilton, IN	monthly rain	41.9 mm (1.6 in)	5.1 mm (0.20 in)	10 years	23 of 100 (Routine)
9 December 1940	Quincy, US	monthly high max	21.7 C (71.1 F)	1.1 C (2.0 F)	23 years	21 of 100 (Routine)
9 December 1940	La Sal, US	daily high max	14.4 C (57.9 F)	3.3 C (5.9 F)	38 years	21 of 100 (Routine)
9 December 1940	Marshall, US	monthly high max	21.7 C (71.1 F)	0.6 C (1.1 F)	24 years	21 of 100 (Routine)
9 December 1940	Ilulissat (Jakobshavn), GL	daily rain	14.0 mm (0.6 in)	10.6 mm (0.4 in)	20 years	20 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 1940

Records set or tied on this calendar date in each year from 1796 to 1940. 1940 had 251 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 1940-12-09: 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).

Margin	Records
0 to 20	177
20 to 40	10
40 to 60	3
60 to 80	0
80 to 100	0
100 to 120	1