Weather Records on 10 December 1939

924 weather records were set or tied worldwide on 10 December 1939. Highest significance: McKinley, US.

Key Facts for 10 December 1939

On 10 December 1939, 924 weather records were set or tied at long-record stations worldwide.
860 were record highs and 5 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 75 monthly and 847 daily.
McKinley set a daily record precipitation of 91.4 mm (3.6 in) on 10 December 1939.
Across 161 earlier years (1796 to 2025) the same calendar date averaged 445 records.

Record Map

924 stations

924 station records on 10 December 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 10 December 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
McKinley	United States	Record daily precipitation	91.4 mm (3.6 in)	41 of 100 (Notable)
Winnemucca AP	United States	Record high maximum temperature	21.1 C (70.0 F)	39 of 100 (Notable)
Jacksonville	United States	Record daily precipitation	54.1 mm (2.1 in)	36 of 100 (Notable)
Port Orford 2	United States	Record daily precipitation	105.4 mm (4.1 in)	36 of 100 (Notable)
Crescent City 3 NNW	United States	Record daily precipitation	123.7 mm (4.9 in)	35 of 100 (Notable)
Santa Fe	United States	Record high minimum temperature	3.3 C (37.9 F)	33 of 100 (Routine)
Chemnitz	Germany	Record snow depth	38.0 cm (15.0 in)	32 of 100 (Routine)
Garsebach Bei Meissen	Germany	Record snow depth	13.0 cm (5.1 in)	30 of 100 (Routine)
Mahackala	Russia	Record high minimum temperature	8.5 C (47.3 F)	30 of 100 (Routine)
Lawrence	United States	Record high maximum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Cape May 2 NW	United States	Record high maximum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Plauen	Germany	Record snow depth	19.0 cm (7.5 in)	28 of 100 (Routine)
Chattanooga	United States	Record high maximum temperature	30.0 C (86.0 F)	28 of 100 (Routine)
Baltimore Customs House	United States	Record high maximum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Simcoe	Canada	Record high minimum temperature	5.0 C (41.0 F)	27 of 100 (Routine)
Represa	United States	Record high maximum temperature	20.0 C (68.0 F)	26 of 100 (Routine)
Upper Mattole	United States	Record daily precipitation	237.5 mm (9.4 in)	26 of 100 (Routine)
Conconully	United States	Record daily precipitation	26.7 mm (1.1 in)	26 of 100 (Routine)
Livingston	United States	Record high maximum temperature	17.8 C (64.0 F)	25 of 100 (Routine)
Santa Fe	United States	Record high maximum temperature	14.4 C (57.9 F)	25 of 100 (Routine)
Gainesville	United States	Record high maximum temperature	27.8 C (82.0 F)	25 of 100 (Routine)
Farmington	United States	Record high maximum temperature	18.9 C (66.0 F)	25 of 100 (Routine)
American Falls 6 NE	United States	Record high maximum temperature	15.0 C (59.0 F)	24 of 100 (Routine)
Buhl	United States	Record high maximum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Milaca	United States	Record high maximum temperature	10.6 C (51.1 F)	24 of 100 (Routine)
Ardmore	United States	Record high maximum temperature	28.9 C (84.0 F)	24 of 100 (Routine)
Wichita Mtn Wr	United States	Record high maximum temperature	28.3 C (82.9 F)	24 of 100 (Routine)
Joseph	United States	Record high minimum temperature	6.7 C (44.1 F)	24 of 100 (Routine)
Rosalia	United States	Record high maximum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Westcliffe	United States	Record high maximum temperature	19.4 C (66.9 F)	23 of 100 (Routine)
Great Falls	United States	Record high maximum temperature	21.1 C (70.0 F)	23 of 100 (Routine)
Livingston	United States	Record high minimum temperature	10.0 C (50.0 F)	23 of 100 (Routine)
Red Lodge	United States	Record high minimum temperature	1.7 C (35.1 F)	23 of 100 (Routine)
Ft Bayard 4W	United States	Record high maximum temperature	22.8 C (73.0 F)	23 of 100 (Routine)
Yuma Wb City	United States	Record high maximum temperature	27.2 C (81.0 F)	23 of 100 (Routine)
Russell	Canada	Record high minimum temperature	-3.3 C (26.1 F)	22 of 100 (Routine)
Gorlitz	Germany	Record low minimum temperature	-13.0 C (8.6 F)	22 of 100 (Routine)
Passau-Maierhof	Germany	Record snow depth	24.0 cm (9.4 in)	22 of 100 (Routine)
Midland 2	United States	Record high minimum temperature	4.4 C (39.9 F)	22 of 100 (Routine)
Fergus Falls	United States	Record high maximum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Saint Ignatius	United States	Record high maximum temperature	18.9 C (66.0 F)	22 of 100 (Routine)
Imperial	United States	Record high maximum temperature	20.0 C (68.0 F)	22 of 100 (Routine)
W Chester 2 NW	United States	Record high maximum temperature	18.9 C (66.0 F)	22 of 100 (Routine)
Havre Wb City	United States	Record high maximum temperature	18.9 C (66.0 F)	22 of 100 (Routine)
Greensboro	United States	Record high maximum temperature	23.9 C (75.0 F)	21 of 100 (Routine)
Amite	United States	Record high maximum temperature	28.3 C (82.9 F)	21 of 100 (Routine)
Frederick Police Brks	United States	Record high maximum temperature	20.6 C (69.1 F)	21 of 100 (Routine)
Big Timber	United States	Record high maximum temperature	19.4 C (66.9 F)	21 of 100 (Routine)
Chinook	United States	Record high maximum temperature	20.6 C (69.1 F)	21 of 100 (Routine)
Hastings 4N	United States	Record high minimum temperature	8.3 C (46.9 F)	21 of 100 (Routine)
Frederick	United States	Record high maximum temperature	29.4 C (84.9 F)	21 of 100 (Routine)
Bandon 2 NNE	United States	Record daily precipitation	53.3 mm (2.1 in)	21 of 100 (Routine)
Lakeside	United States	Record high minimum temperature	5.0 C (41.0 F)	21 of 100 (Routine)
Border 3 N	United States	Record high maximum temperature	15.6 C (60.1 F)	21 of 100 (Routine)
Spokane Intl AP	United States	Record high maximum temperature	15.6 C (60.1 F)	21 of 100 (Routine)
Washington	United States	Record high maximum temperature	19.4 C (66.9 F)	21 of 100 (Routine)
Helena Wb City	United States	Record high maximum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Basel Binningen	Switzerland	Record daily precipitation	16.9 mm (0.7 in)	20 of 100 (Routine)
Zhizdra	Russia	Record daily precipitation	10.1 mm (0.4 in)	20 of 100 (Routine)
Gallivare_A	Sweden	Record daily precipitation	6.0 mm (0.24 in)	20 of 100 (Routine)

Counts by Type and Timescale

924 records

Records set or tied on 10 December 1939 by type: Highest daily maximum 584, Lowest daily maximum 2, Highest daily minimum 276, Lowest daily minimum 3, Heaviest daily rainfall 53, Heaviest daily snowfall 2, Deepest snow cover 4.

Records on 10 December 1939 by type
Record type	Records
Highest daily maximum	584
Lowest daily maximum	2
Highest daily minimum	276
Lowest daily minimum	3
Heaviest daily rainfall	53
Heaviest daily snowfall	2
Deepest snow cover	4

Records on 10 December 1939 by timescale: all-time 2, monthly 75, daily 847.

How Much Records Were Beaten By

725 broken records

Margins by which the 725 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 90.0. Ties are not counted.

Top 20 by Significance

10 December 1939

Top 20 records on 10 December 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
10 December 1939	McKinley, US	daily rain	91.4 mm (3.6 in)	38.1 mm (1.5 in)	32 years	41 of 100 (Notable)
10 December 1939	Winnemucca AP, US	monthly high max	21.1 C (70.0 F)	2.8 C (5.0 F)	61 years	39 of 100 (Notable)
10 December 1939	Jacksonville, US	daily rain	54.1 mm (2.1 in)	19.8 mm (0.8 in)	39 years	36 of 100 (Notable)
10 December 1939	Port Orford 2, US	daily rain	105.4 mm (4.1 in)	48.5 mm (1.9 in)	10 years	36 of 100 (Notable)
10 December 1939	Crescent City 3 NNW, US	monthly rain	123.7 mm (4.9 in)	15.0 mm (0.6 in)	46 years	35 of 100 (Notable)
10 December 1939	Santa Fe, US	daily high min	3.3 C (37.9 F)	3.9 C (7.0 F)	63 years	33 of 100 (Routine)
10 December 1939	Chemnitz, DE	monthly snow depth	38.0 cm (15.0 in)	8.0 cm (3.1 in)	0 years	32 of 100 (Routine)
10 December 1939	Garsebach Bei Meissen, DE	daily snow depth	13.0 cm (5.1 in)	9.0 cm (3.5 in)	16 years	30 of 100 (Routine)
10 December 1939	Mahackala, RU	monthly high min	8.5 C (47.3 F)	0.2 C (0.4 F)	52 years	30 of 100 (Routine)
10 December 1939	Lawrence, US	daily high max	18.9 C (66.0 F)	2.2 C (4.0 F)	69 years	30 of 100 (Routine)
10 December 1939	Cape May 2 NW, US	daily high max	17.8 C (64.0 F)	3.4 C (6.1 F)	59 years	30 of 100 (Routine)
10 December 1939	Plauen, DE	daily snow depth	19.0 cm (7.5 in)	9.0 cm (3.5 in)	20 years	28 of 100 (Routine)
10 December 1939	Chattanooga, US	monthly high max	30.0 C (86.0 F)	3.3 C (5.9 F)	34 years	28 of 100 (Routine)
10 December 1939	Baltimore Customs House, US	daily high max	21.1 C (70.0 F)	5.5 C (9.9 F)	41 years	28 of 100 (Routine)
10 December 1939	Simcoe, CA	daily high min	5.0 C (41.0 F)	2.2 C (4.0 F)	59 years	27 of 100 (Routine)
10 December 1939	Represa, US	daily high max	20.0 C (68.0 F)	3.3 C (5.9 F)	42 years	26 of 100 (Routine)
10 December 1939	Upper Mattole, US	all-time rain	237.5 mm (9.4 in)	1.3 mm (0.05 in)	7 years	26 of 100 (Routine)
10 December 1939	Conconully, US	daily rain	26.7 mm (1.1 in)	12.2 mm (0.5 in)	1 year	26 of 100 (Routine)
10 December 1939	Livingston, US	daily high max	17.8 C (64.0 F)	6.7 C (12.1 F)	42 years	25 of 100 (Routine)
10 December 1939	Santa Fe, US	daily high max	14.4 C (57.9 F)	0.5 C (0.9 F)	60 years	25 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 924 records.

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

Records on 12-10 in each year
Year	Records
1796	1
1812	2
1815	1
1816	1
1825	2
1841	1
1844	1
1848	1
1849	1
1852	2
1855	1
1856	1
1860	1
1867	2
1869	1
1870	1
1871	1
1872	1
1873	2
1875	1
1876	4
1877	1
1878	3
1879	10
1880	2
1882	2
1884	1
1886	1
1889	1
1891	17
1893	2
1894	2
1895	4
1897	1
1898	4
1899	4
1900	1
1901	5
1902	8
1903	7
1904	15
1905	18
1906	15
1907	29
1908	11
1909	16
1910	47
1911	35
1912	23
1913	21
1914	35
1915	123
1916	89
1917	76
1918	30
1919	80
1920	186
1921	52
1922	157
1923	121
1924	64
1925	83
1926	106
1927	202
1928	131
1929	250
1930	141
1931	318
1932	511
1933	265
1934	331
1935	194
1936	178
1937	449
1938	272
1939	924
1940	163
1941	249
1942	282
1943	504
1944	431
1945	193
1946	1,073
1947	378
1948	174
1949	536
1950	336
1951	582
1952	633
1953	408
1954	336
1955	385
1956	455
1957	449
1958	751
1959	205
1960	390
1961	878
1962	405
1963	511
1964	447
1965	843
1966	991
1967	829
1968	576
1969	423
1970	1,338
1971	1,646
1972	1,858
1973	453
1974	372
1975	688
1976	376
1977	1,370
1978	1,299
1979	1,378
1980	531
1981	1,035
1982	748
1983	685
1984	605
1985	1,421
1986	601
1987	803
1988	599
1989	787
1990	935
1991	940
1992	795
1993	754
1994	940
1995	1,758
1996	1,193
1997	1,198
1998	709
1999	568
2000	882
2001	460
2002	1,030
2003	1,086
2004	1,247
2005	833
2006	998
2007	1,202
2008	1,083
2009	1,354
2010	1,424
2011	362
2012	825
2013	1,010
2014	602
2015	1,166
2016	858
2017	719
2018	500
2019	572
2020	567
2021	934
2022	570
2023	926
2024	477
2025	1,969

Download the Data

Data for records on 1939-12-10: 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	718
20 to 40	3
40 to 60	1
60 to 80	0
80 to 100	3