Weather Records on 11 December 1939

626 weather records were set or tied worldwide on 11 December 1939. Highest significance: Ai-Petri, UA.

Key Facts for 11 December 1939

On 11 December 1939, 626 weather records were set or tied at long-record stations worldwide.
564 were record highs and 4 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 53 monthly and 573 daily.
Ai-Petri set a daily record precipitation of 108.0 mm (4.3 in) on 11 December 1939.
Across 154 earlier years (1796 to 2025) the same calendar date averaged 472 records.

Record Map

626 stations

626 station records on 11 December 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 December 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ai-Petri	Ukraine	Record daily precipitation	108.0 mm (4.3 in)	53 of 100 (Notable)
Chemnitz	Germany	Record snow depth	28.0 cm (11.0 in)	52 of 100 (Notable)
Dunvegan	Canada	Record daily snowfall	17.3 cm (6.8 in)	43 of 100 (Notable)
Garsebach Bei Meissen	Germany	Record snow depth	12.0 cm (4.7 in)	33 of 100 (Routine)
Cedaredge	United States	Record high maximum temperature	20.0 C (68.0 F)	28 of 100 (Routine)
Eulolo Station	Australia	Record daily precipitation	36.8 mm (1.4 in)	27 of 100 (Routine)
McPherson	United States	Record high maximum temperature	23.3 C (73.9 F)	27 of 100 (Routine)
Plauen	Germany	Record snow depth	18.0 cm (7.1 in)	26 of 100 (Routine)
Yalta	Ukraine	Record daily precipitation	28.9 mm (1.1 in)	26 of 100 (Routine)
Larned	United States	Record high maximum temperature	25.0 C (77.0 F)	26 of 100 (Routine)
Tribune 1W	United States	Record high maximum temperature	23.9 C (75.0 F)	26 of 100 (Routine)
Holberg	Canada	Record daily precipitation	79.8 mm (3.1 in)	25 of 100 (Routine)
Montrose #2	United States	Record high maximum temperature	20.0 C (68.0 F)	25 of 100 (Routine)
Hays 1 S	United States	Record high maximum temperature	23.9 C (75.0 F)	25 of 100 (Routine)
Jetmore	United States	Record high maximum temperature	25.6 C (78.1 F)	25 of 100 (Routine)
Eckman 2 SE	United States	Record high maximum temperature	15.6 C (60.1 F)	25 of 100 (Routine)
Corsicana	United States	Record high maximum temperature	29.4 C (84.9 F)	25 of 100 (Routine)
Maunawili Rch	United States	Record low maximum temperature	20.0 C (68.0 F)	25 of 100 (Routine)
Minnedosa	Canada	Record high maximum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Montrose 1	United States	Record high maximum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Rocky Ford 2 SE	United States	Record high maximum temperature	23.9 C (75.0 F)	24 of 100 (Routine)
Selinsgrove 2 S	United States	Record high minimum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Hayward Rs	United States	Record high maximum temperature	14.4 C (57.9 F)	24 of 100 (Routine)
Kaslo	Canada	Record high maximum temperature	8.3 C (46.9 F)	23 of 100 (Routine)
De Emigratie	South Africa	Record daily precipitation	38.6 mm (1.5 in)	23 of 100 (Routine)
Ashland	United States	Record high maximum temperature	28.3 C (82.9 F)	23 of 100 (Routine)
Richfield	United States	Record high maximum temperature	25.6 C (78.1 F)	23 of 100 (Routine)
Ft Robinson	United States	Record high maximum temperature	21.1 C (70.0 F)	23 of 100 (Routine)
Saltair	United States	Record high maximum temperature	20.0 C (68.0 F)	23 of 100 (Routine)
Pathfinder Dam	United States	Record high minimum temperature	7.2 C (45.0 F)	23 of 100 (Routine)
Indian Head Cda	Canada	Record high maximum temperature	11.1 C (52.0 F)	22 of 100 (Routine)
Cheyenne Wells 2NE	United States	Record high maximum temperature	25.0 C (77.0 F)	22 of 100 (Routine)
Collbran	United States	Record high maximum temperature	16.1 C (61.0 F)	22 of 100 (Routine)
Ft Collins	United States	Record high maximum temperature	24.4 C (75.9 F)	22 of 100 (Routine)
Coldwater	United States	Record high maximum temperature	27.8 C (82.0 F)	22 of 100 (Routine)
Columbus 3 NE	United States	Record high maximum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Newport	United States	Record high maximum temperature	23.9 C (75.0 F)	22 of 100 (Routine)
Cloud Chief 2 SE	United States	Record high maximum temperature	26.7 C (80.1 F)	22 of 100 (Routine)
Anthony	United States	Record high maximum temperature	26.1 C (79.0 F)	22 of 100 (Routine)
The Meadows	South Africa	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
Emporia 1 S	United States	Record high maximum temperature	22.8 C (73.0 F)	21 of 100 (Routine)
Lakin	United States	Record high maximum temperature	23.9 C (75.0 F)	21 of 100 (Routine)
Sedan	United States	Record high maximum temperature	25.0 C (77.0 F)	21 of 100 (Routine)
Geneva	United States	Record high maximum temperature	18.3 C (64.9 F)	21 of 100 (Routine)
Jamestown State Hosp	United States	Record high maximum temperature	16.7 C (62.1 F)	21 of 100 (Routine)
Napoleon	United States	Record high maximum temperature	17.8 C (64.0 F)	21 of 100 (Routine)
Forestburg 4 NNE	United States	Record high maximum temperature	19.4 C (66.9 F)	21 of 100 (Routine)
Kennebec	United States	Record high maximum temperature	20.0 C (68.0 F)	21 of 100 (Routine)
Dunvegan	Canada	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Chatrapur	India	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Aska	India	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Sevastopol',Mgs	Ukraine	Record daily precipitation	7.7 mm (0.30 in)	20 of 100 (Routine)
Purushottampur	India	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Qu'appelle	Canada	Record high minimum temperature	0.0 C (32.0 F)	20 of 100 (Routine)
Brandon Cda	Canada	Record high maximum temperature	11.7 C (53.1 F)	20 of 100 (Routine)
Sussex	Canada	Record daily snowfall	19.8 cm (7.8 in)	20 of 100 (Routine)
Puri	India	Record daily precipitation	6.4 mm (0.25 in)	20 of 100 (Routine)
Overdene	South Africa	Record daily precipitation	28.2 mm (1.1 in)	20 of 100 (Routine)
Snowflake	United States	Record high maximum temperature	21.1 C (70.0 F)	20 of 100 (Routine)
El Dorado	United States	Record high maximum temperature	24.4 C (75.9 F)	20 of 100 (Routine)

Counts by Type and Timescale

626 records

Records set or tied on 11 December 1939 by type: Highest daily maximum 425, Lowest daily maximum 1, Highest daily minimum 139, Lowest daily minimum 3, Heaviest daily rainfall 50, Heaviest daily snowfall 5, Deepest snow cover 3.

Records on 11 December 1939 by type
Record type	Records
Highest daily maximum	425
Lowest daily maximum	1
Highest daily minimum	139
Lowest daily minimum	3
Heaviest daily rainfall	50
Heaviest daily snowfall	5
Deepest snow cover	3

Records on 11 December 1939 by timescale: all-time 0, monthly 53, daily 573.

How Much Records Were Beaten By

527 broken records

Margins by which the 527 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 170.0. Ties are not counted.

Top 20 by Significance

11 December 1939

Top 20 records on 11 December 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 December 1939	Ai-Petri, UA	daily rain	108.0 mm (4.3 in)	82.4 mm (3.2 in)	32 years	53 of 100 (Notable)
11 December 1939	Chemnitz, DE	daily snow depth	28.0 cm (11.0 in)	17.0 cm (6.7 in)	36 years	52 of 100 (Notable)
11 December 1939	Dunvegan, CA	daily snowfall	17.3 cm (6.8 in)	8.4 cm (3.3 in)	56 years	43 of 100 (Notable)
11 December 1939	Garsebach Bei Meissen, DE	daily snow depth	12.0 cm (4.7 in)	10.0 cm (3.9 in)	16 years	33 of 100 (Routine)
11 December 1939	Cedaredge, US	monthly high max	20.0 C (68.0 F)	1.7 C (3.1 F)	37 years	28 of 100 (Routine)
11 December 1939	Eulolo Station, AU	daily rain	36.8 mm (1.4 in)	21.6 mm (0.9 in)	22 years	27 of 100 (Routine)
11 December 1939	McPherson, US	daily high max	23.3 C (73.9 F)	7.7 C (13.9 F)	42 years	27 of 100 (Routine)
11 December 1939	Plauen, DE	daily snow depth	18.0 cm (7.1 in)	8.0 cm (3.1 in)	20 years	26 of 100 (Routine)
11 December 1939	Yalta, UA	daily rain	28.9 mm (1.1 in)	10.3 mm (0.4 in)	32 years	26 of 100 (Routine)
11 December 1939	Larned, US	daily high max	25.0 C (77.0 F)	9.4 C (16.9 F)	33 years	26 of 100 (Routine)
11 December 1939	Tribune 1W, US	daily high max	23.9 C (75.0 F)	7.2 C (13.0 F)	45 years	26 of 100 (Routine)
11 December 1939	Holberg, CA	daily rain	79.8 mm (3.1 in)	33.1 mm (1.3 in)	17 years	25 of 100 (Routine)
11 December 1939	Montrose #2, US	monthly high max	20.0 C (68.0 F)	2.8 C (5.0 F)	22 years	25 of 100 (Routine)
11 December 1939	Hays 1 S, US	daily high max	23.9 C (75.0 F)	6.1 C (11.0 F)	43 years	25 of 100 (Routine)
11 December 1939	Jetmore, US	daily high max	25.6 C (78.1 F)	8.9 C (16.0 F)	32 years	25 of 100 (Routine)
11 December 1939	Eckman 2 SE, US	daily high max	15.6 C (60.1 F)	11.2 C (20.2 F)	32 years	25 of 100 (Routine)
11 December 1939	Corsicana, US	daily high max	29.4 C (84.9 F)	5.0 C (9.0 F)	45 years	25 of 100 (Routine)
11 December 1939	Maunawili Rch, US	monthly low max	20.0 C (68.0 F)	0.6 C (1.1 F)	32 years	25 of 100 (Routine)
11 December 1939	Minnedosa, CA	daily high max	9.4 C (48.9 F)	5.0 C (9.0 F)	42 years	24 of 100 (Routine)
11 December 1939	Montrose 1, US	monthly high max	20.0 C (68.0 F)	2.8 C (5.0 F)	22 years	24 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 1939

Records set or tied on this calendar date in each year from 1796 to 1939. 1939 had 626 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 1939-12-11: 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 25	517
25 to 50	5
50 to 75	0
75 to 100	3
100 to 125	1
125 to 150	0
150 to 175	1