Weather Records on 11 December 1940

302 weather records were set or tied worldwide on 11 December 1940. Highest significance: Coffs Harbour, AU.

Key Facts for 11 December 1940

On 11 December 1940, 302 weather records were set or tied at long-record stations worldwide.
67 were record highs and 7 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 296 daily.
Coffs Harbour set a monthly record daily precipitation of 236.2 mm (9.3 in) on 11 December 1940.
Across 154 earlier years (1796 to 2025) the same calendar date averaged 474 records.

Record Map

302 stations

302 station records on 11 December 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 December 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Coffs Harbour	Australia	Record daily precipitation	236.2 mm (9.3 in)	59 of 100 (Notable)
Upper Urara (the Knoll)	Australia	Record daily precipitation	230.1 mm (9.1 in)	55 of 100 (Notable)
Osijek	Croatia	Record daily precipitation	26.2 mm (1.0 in)	50 of 100 (Notable)
Raleigh Post Office	Australia	Record daily precipitation	133.4 mm (5.3 in)	45 of 100 (Notable)
Kerrville	United States	Record daily precipitation	67.6 mm (2.7 in)	45 of 100 (Notable)
Nambucca Heads Bowling Club	Australia	Record daily precipitation	94.5 mm (3.7 in)	44 of 100 (Notable)
Upper Orara (Aurania)	Australia	Record daily precipitation	174.8 mm (6.9 in)	41 of 100 (Notable)
College STN 6 SW	United States	Record daily precipitation	85.1 mm (3.4 in)	41 of 100 (Notable)
Toogoolawah Post Office	Australia	Record daily precipitation	84.3 mm (3.3 in)	36 of 100 (Notable)
Oakey Post Office	Australia	Record daily precipitation	54.9 mm (2.2 in)	35 of 100 (Notable)
Eureka Springs 3 WNW	United States	Record daily precipitation	40.6 mm (1.6 in)	33 of 100 (Routine)
Macksville Country Club	Australia	Record daily precipitation	70.4 mm (2.8 in)	32 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record snow depth	23.0 cm (9.1 in)	32 of 100 (Routine)
Rolla Missouri S&T	United States	Record daily precipitation	26.9 mm (1.1 in)	32 of 100 (Routine)
Boerne	United States	Record daily precipitation	48.5 mm (1.9 in)	32 of 100 (Routine)
Llano	United States	Record daily precipitation	71.1 mm (2.8 in)	32 of 100 (Routine)
Gulargambone (Emby)	Australia	Record daily precipitation	39.9 mm (1.6 in)	30 of 100 (Routine)
Tucson WFO	United States	Record daily precipitation	25.9 mm (1.0 in)	30 of 100 (Routine)
Norris Madison Pwr House	United States	Record daily snowfall	20.3 cm (8.0 in)	30 of 100 (Routine)
Austin	United States	Record daily precipitation	51.1 mm (2.0 in)	30 of 100 (Routine)
Montrose 1	United States	Record daily snowfall	20.3 cm (8.0 in)	29 of 100 (Routine)
Blanco	United States	Record daily precipitation	44.7 mm (1.8 in)	29 of 100 (Routine)
Gatesville	United States	Record daily precipitation	56.4 mm (2.2 in)	29 of 100 (Routine)
Montrose #2	United States	Record daily snowfall	20.3 cm (8.0 in)	28 of 100 (Routine)
Canning Downs	Australia	Record daily precipitation	35.6 mm (1.4 in)	27 of 100 (Routine)
Bironkhol	India	Record daily precipitation	36.8 mm (1.4 in)	27 of 100 (Routine)
Lampasas	United States	Record daily precipitation	53.6 mm (2.1 in)	27 of 100 (Routine)
Marble Falls	United States	Record daily precipitation	58.7 mm (2.3 in)	27 of 100 (Routine)
Yamba Pilot Station	Australia	Record daily precipitation	43.9 mm (1.7 in)	26 of 100 (Routine)
Sattankulam	India	Record daily precipitation	75.2 mm (3.0 in)	26 of 100 (Routine)
Forest Hill	Australia	Record daily precipitation	36.3 mm (1.4 in)	25 of 100 (Routine)
Bingara Post Office	Australia	Record daily precipitation	27.9 mm (1.1 in)	25 of 100 (Routine)
Telluride 4WNW	United States	Record daily snowfall	17.8 cm (7.0 in)	25 of 100 (Routine)
St Louis Eads Brg	United States	Record daily precipitation	27.4 mm (1.1 in)	25 of 100 (Routine)
Laidley Post Office	Australia	Record daily precipitation	33.8 mm (1.3 in)	24 of 100 (Routine)
Carlton Hill	Australia	Record daily precipitation	25.4 mm (1.0 in)	23 of 100 (Routine)
Gowrie Junction	Australia	Record daily precipitation	49.5 mm (1.9 in)	23 of 100 (Routine)
Willow Tree (Valais)	Australia	Record daily precipitation	33.0 mm (1.3 in)	23 of 100 (Routine)
Sapphire (Argyle)	Australia	Record daily precipitation	37.3 mm (1.5 in)	23 of 100 (Routine)
Tbilisi	Georgia	Record high maximum temperature	21.8 C (71.2 F)	23 of 100 (Routine)
Timovskoe	Russia	Record high minimum temperature	-8.7 C (16.3 F)	23 of 100 (Routine)
Juandah	Australia	Record daily precipitation	37.1 mm (1.5 in)	22 of 100 (Routine)
Esk Post Office	Australia	Record daily precipitation	42.4 mm (1.7 in)	22 of 100 (Routine)
Bowraville Recreation Club	Australia	Record daily precipitation	59.4 mm (2.3 in)	22 of 100 (Routine)
Normanton Post Office	Australia	Record daily precipitation	39.9 mm (1.6 in)	21 of 100 (Routine)
Kistwar	India	Record daily precipitation	28.7 mm (1.1 in)	21 of 100 (Routine)
Gyzylarbat	Turkmenistan	Record high maximum temperature	18.7 C (65.7 F)	21 of 100 (Routine)
Eureka	United States	Record daily snowfall	6.9 cm (2.7 in)	21 of 100 (Routine)
Austin Montopolis Brg	United States	Record daily precipitation	42.4 mm (1.7 in)	21 of 100 (Routine)
Ventspils	Latvia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Kokpekty	Kazakhstan	Record daily precipitation	18.9 mm (0.7 in)	20 of 100 (Routine)
Montrose 1	United States	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Telluride 4WNW	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Praha-Klementinum	Czech Republic	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Montrose #2	United States	Record daily precipitation	14.2 mm (0.6 in)	20 of 100 (Routine)
Woogenellup	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Espanola	United States	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Lugansk	Ukraine	Record daily precipitation	11.8 mm (0.5 in)	20 of 100 (Routine)
Peppermint Grove	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Cedaredge	United States	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)

Counts by Type and Timescale

302 records

Records set or tied on 11 December 1940 by type: Highest daily maximum 35, Lowest daily maximum 3, Highest daily minimum 32, Lowest daily minimum 4, Heaviest daily rainfall 201, Heaviest daily snowfall 21, Deepest snow cover 6.

Records on 11 December 1940 by type
Record type	Records
Highest daily maximum	35
Lowest daily maximum	3
Highest daily minimum	32
Lowest daily minimum	4
Heaviest daily rainfall	201
Heaviest daily snowfall	21
Deepest snow cover	6

Records on 11 December 1940 by timescale: all-time 0, monthly 6, daily 296.

How Much Records Were Beaten By

259 broken records

Margins by which the 259 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 140.0. Ties are not counted.

Top 20 by Significance

11 December 1940

Top 20 records on 11 December 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 December 1940	Coffs Harbour, AU	monthly rain	236.2 mm (9.3 in)	97.3 mm (3.8 in)	18 years	59 of 100 (Notable)
11 December 1940	Upper Urara (the Knoll), AU	monthly rain	230.1 mm (9.1 in)	86.3 mm (3.4 in)	9 years	55 of 100 (Notable)
11 December 1940	Osijek, HR	daily rain	26.2 mm (1.0 in)	19.6 mm (0.8 in)	21 years	50 of 100 (Notable)
11 December 1940	Raleigh Post Office, AU	daily rain	133.4 mm (5.3 in)	112.3 mm (4.4 in)	7 years	45 of 100 (Notable)
11 December 1940	Kerrville, US	daily rain	67.6 mm (2.7 in)	46.8 mm (1.8 in)	5 years	45 of 100 (Notable)
11 December 1940	Nambucca Heads Bowling Club, AU	daily rain	94.5 mm (3.7 in)	56.4 mm (2.2 in)	24 years	44 of 100 (Notable)
11 December 1940	Upper Orara (Aurania), AU	monthly rain	174.8 mm (6.9 in)	35.1 mm (1.4 in)	24 years	41 of 100 (Notable)
11 December 1940	College STN 6 SW, US	daily rain	85.1 mm (3.4 in)	46.0 mm (1.8 in)	42 years	41 of 100 (Notable)
11 December 1940	Toogoolawah Post Office, AU	daily rain	84.3 mm (3.3 in)	32.7 mm (1.3 in)	30 years	36 of 100 (Notable)
11 December 1940	Oakey Post Office, AU	daily rain	54.9 mm (2.2 in)	26.2 mm (1.0 in)	40 years	35 of 100 (Notable)
11 December 1940	Eureka Springs 3 WNW, US	daily rain	40.6 mm (1.6 in)	29.7 mm (1.2 in)	25 years	33 of 100 (Routine)
11 December 1940	Macksville Country Club, AU	daily rain	70.4 mm (2.8 in)	48.3 mm (1.9 in)	7 years	32 of 100 (Routine)
11 December 1940	Heinersreuth-Vollhof, DE	daily snow depth	23.0 cm (9.1 in)	14.0 cm (5.5 in)	15 years	32 of 100 (Routine)
11 December 1940	Rolla Missouri S&T, US	daily rain	26.9 mm (1.1 in)	17.2 mm (0.7 in)	40 years	32 of 100 (Routine)
11 December 1940	Boerne, US	daily rain	48.5 mm (1.9 in)	25.6 mm (1.0 in)	28 years	32 of 100 (Routine)
11 December 1940	Llano, US	monthly rain	71.1 mm (2.8 in)	11.4 mm (0.4 in)	25 years	32 of 100 (Routine)
11 December 1940	Gulargambone (Emby), AU	daily rain	39.9 mm (1.6 in)	29.2 mm (1.1 in)	18 years	30 of 100 (Routine)
11 December 1940	Tucson WFO, US	daily rain	25.9 mm (1.0 in)	17.5 mm (0.7 in)	12 years	30 of 100 (Routine)
11 December 1940	Norris Madison Pwr House, US	daily snowfall	20.3 cm (8.0 in)	8.9 cm (3.5 in)	24 years	30 of 100 (Routine)
11 December 1940	Austin, US	daily rain	51.1 mm (2.0 in)	30.8 mm (1.2 in)	28 years	30 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 302 records.

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

Records on 12-11 in each year
Year	Records
1796	2
1808	2
1815	2
1825	2
1841	1
1852	1
1855	2
1862	1
1868	1
1869	3
1871	4
1872	1
1876	2
1877	1
1878	2
1879	4
1880	2
1882	3
1886	1
1887	1
1889	1
1891	3
1892	2
1893	3
1894	1
1895	4
1897	2
1898	14
1899	5
1900	4
1901	5
1902	6
1903	2
1904	28
1905	15
1906	12
1907	30
1908	18
1909	7
1910	31
1911	49
1912	36
1913	8
1914	13
1915	93
1916	55
1917	103
1918	32
1919	40
1920	58
1921	49
1922	143
1923	88
1924	84
1925	81
1926	77
1927	232
1928	111
1929	345
1930	72
1931	762
1932	696
1933	260
1934	480
1935	290
1936	357
1937	839
1938	231
1939	626
1940	302
1941	353
1942	263
1943	196
1944	407
1945	234
1946	717
1947	342
1948	153
1949	1,201
1950	463
1951	261
1952	923
1953	157
1954	492
1955	312
1956	300
1957	517
1958	985
1959	322
1960	746
1961	1,300
1962	723
1963	604
1964	542
1965	1,216
1966	525
1967	945
1968	543
1969	587
1970	617
1971	900
1972	1,514
1973	334
1974	313
1975	454
1976	380
1977	1,182
1978	678
1979	847
1980	522
1981	949
1982	657
1983	971
1984	1,013
1985	1,471
1986	561
1987	639
1988	850
1989	584
1990	747
1991	1,102
1992	1,357
1993	749
1994	1,243
1995	1,837
1996	1,307
1997	1,203
1998	1,012
1999	769
2000	1,584
2001	626
2002	1,139
2003	646
2004	1,166
2005	816
2006	858
2007	1,613
2008	1,312
2009	1,091
2010	1,284
2011	416
2012	618
2013	737
2014	893
2015	1,183
2016	489
2017	670
2018	353
2019	442
2020	517
2021	1,175
2022	679
2023	814
2024	539
2025	1,691

Download the Data

Data for records on 1940-12-11: 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	222
20 to 40	22
40 to 60	5
60 to 80	3
80 to 100	3
100 to 120	1
120 to 140	3