Weather Records on 1 December 1939

346 weather records were set or tied worldwide on 1 December 1939. Highest significance: Jena Sternwarte, DE.

Key Facts for 1 December 1939

On 1 December 1939, 346 weather records were set or tied at long-record stations worldwide.
213 were record highs and 4 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 26 monthly and 320 daily.
Jena Sternwarte set a daily record high minimum temperature of 8.6 C (47.5 F) on 1 December 1939.
Across 162 earlier years (1797 to 2025) the same calendar date averaged 484 records.

Record Map

346 stations

346 station records on 1 December 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 December 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Jena Sternwarte	Germany	Record high minimum temperature	8.6 C (47.5 F)	41 of 100 (Notable)
Jena Sternwarte	Germany	Record high maximum temperature	13.8 C (56.8 F)	40 of 100 (Notable)
Bamberg	Germany	Record high minimum temperature	8.8 C (47.8 F)	27 of 100 (Routine)
Saskatoon Diefenbaker Int'l A	Canada	Record high minimum temperature	0.0 C (32.0 F)	26 of 100 (Routine)
Augsburg (Sankt Stephan)	Germany	Record high minimum temperature	7.0 C (44.6 F)	26 of 100 (Routine)
Armagh	United Kingdom	Record high minimum temperature	10.5 C (50.9 F)	26 of 100 (Routine)
Battleford	Canada	Record high minimum temperature	-1.1 C (30.0 F)	25 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record high minimum temperature	10.6 C (51.1 F)	25 of 100 (Routine)
Milan Exp STN	United States	Record daily precipitation	33.0 mm (1.3 in)	25 of 100 (Routine)
Camden 1	United States	Record daily precipitation	44.2 mm (1.7 in)	24 of 100 (Routine)
Prince Albert	Canada	Record high minimum temperature	-2.8 C (27.0 F)	23 of 100 (Routine)
Mott	United States	Record high maximum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Mackay Post Office	Australia	Record high maximum temperature	35.7 C (96.3 F)	22 of 100 (Routine)
Brownsville	United States	Record daily precipitation	28.7 mm (1.1 in)	22 of 100 (Routine)
Mc Minnville	United States	Record daily precipitation	26.2 mm (1.0 in)	22 of 100 (Routine)
Graz	Austria	Record high maximum temperature	15.0 C (59.0 F)	21 of 100 (Routine)
Budapest	Hungary	Record high minimum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Detroit Lakes 1 NNE	United States	Record high maximum temperature	11.1 C (52.0 F)	21 of 100 (Routine)
Nordby (Fano)	Denmark	Record daily precipitation	21.0 mm (0.8 in)	20 of 100 (Routine)
Bezenchuk	Russia	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Potsdam	Germany	Record daily precipitation	15.4 mm (0.6 in)	20 of 100 (Routine)
Maly Uzen'	Russia	Record daily precipitation	9.9 mm (0.39 in)	20 of 100 (Routine)
Berlin-Dahlem (Lfag)	Germany	Record daily precipitation	15.3 mm (0.6 in)	20 of 100 (Routine)
Rotenburg (Wumme)	Germany	Record daily precipitation	19.5 mm (0.8 in)	20 of 100 (Routine)
Gorlitz	Germany	Record daily precipitation	11.9 mm (0.5 in)	20 of 100 (Routine)
Weyerhaeuser 1N	United States	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Marnitz	Germany	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Waren	Germany	Record daily precipitation	10.6 mm (0.4 in)	20 of 100 (Routine)
Wittstock-Rote Muhle	Germany	Record daily precipitation	13.8 mm (0.5 in)	20 of 100 (Routine)
Glenwood 3SW	United States	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Wittenberg	Germany	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
St Ignace	United States	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Woodstock	Canada	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Danville	United States	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Lynnville 4 SSW	United States	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Ft Dodge 5NNW	United States	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Schwerin	Germany	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Pelee Island	Canada	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Lindenberg	Germany	Record daily precipitation	15.1 mm (0.6 in)	20 of 100 (Routine)
Dover 1 W	United States	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Ueckermunde	Germany	Record daily precipitation	13.0 mm (0.5 in)	20 of 100 (Routine)
Dayton Mcd	United States	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Bad Muskau	Germany	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Szombathely	Hungary	Record high maximum temperature	18.0 C (64.4 F)	20 of 100 (Routine)
Olney 2S	United States	Record daily precipitation	28.4 mm (1.1 in)	20 of 100 (Routine)
Ottawa 4SW	United States	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Ironwood	United States	Record high maximum temperature	11.7 C (53.1 F)	20 of 100 (Routine)
Winnebago	United States	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Hernando	United States	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Marble Bar Comparison	Australia	Record low minimum temperature	19.4 C (66.9 F)	19 of 100 (Routine)
Wien	Austria	Record high minimum temperature	11.3 C (52.3 F)	19 of 100 (Routine)
Uccle	Belgium	Record high minimum temperature	10.4 C (50.7 F)	19 of 100 (Routine)
Tranebjerg	Denmark	Record daily precipitation	13.0 mm (0.5 in)	19 of 100 (Routine)
Perpignan	France	Record high maximum temperature	25.0 C (77.0 F)	19 of 100 (Routine)
Doberlug-Kirchhain	Germany	Record daily precipitation	17.0 mm (0.7 in)	19 of 100 (Routine)
Putbus	Germany	Record high minimum temperature	4.7 C (40.5 F)	19 of 100 (Routine)
1 ENE Fairfield	United States	Record daily precipitation	25.4 mm (1.0 in)	19 of 100 (Routine)
Flora 5 NW	United States	Record daily precipitation	25.9 mm (1.0 in)	19 of 100 (Routine)
1 N McLeansboro	United States	Record daily precipitation	21.6 mm (0.9 in)	19 of 100 (Routine)
St Charles Elm Pt	United States	Record daily precipitation	14.2 mm (0.6 in)	19 of 100 (Routine)

Counts by Type and Timescale

346 records

Records set or tied on 1 December 1939 by type: Highest daily maximum 94, Lowest daily maximum 1, Highest daily minimum 119, Lowest daily minimum 3, Heaviest daily rainfall 129.

Records on 1 December 1939 by type
Record type	Records
Highest daily maximum	94
Lowest daily maximum	1
Highest daily minimum	119
Lowest daily minimum	3
Heaviest daily rainfall	129
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 December 1939 by timescale: all-time 0, monthly 26, daily 320.

How Much Records Were Beaten By

266 broken records

Margins by which the 266 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 24.6. Ties are not counted.

Top 20 by Significance

1 December 1939

Top 20 records on 1 December 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 December 1939	Jena Sternwarte, DE	daily high min	8.6 C (47.5 F)	1.6 C (2.9 F)	97 years	41 of 100 (Notable)
1 December 1939	Jena Sternwarte, DE	daily high max	13.8 C (56.8 F)	0.5 C (0.9 F)	97 years	40 of 100 (Notable)
1 December 1939	Bamberg, DE	daily high min	8.8 C (47.8 F)	2.9 C (5.2 F)	53 years	27 of 100 (Routine)
1 December 1939	Saskatoon Diefenbaker Int'l A, CA	monthly high min	0.0 C (32.0 F)	1.1 C (2.0 F)	37 years	26 of 100 (Routine)
1 December 1939	Augsburg (Sankt Stephan), DE	daily high min	7.0 C (44.6 F)	2.1 C (3.8 F)	53 years	26 of 100 (Routine)
1 December 1939	Armagh, GB	daily high min	10.5 C (50.9 F)	1.1 C (2.0 F)	48 years	26 of 100 (Routine)
1 December 1939	Battleford, CA	daily high min	-1.1 C (30.0 F)	3.3 C (5.9 F)	54 years	25 of 100 (Routine)
1 December 1939	Dublin Phoenix Park, IE	daily high min	10.6 C (51.1 F)	1.2 C (2.2 F)	48 years	25 of 100 (Routine)
1 December 1939	Milan Exp STN, US	daily rain	33.0 mm (1.3 in)	19.5 mm (0.8 in)	25 years	25 of 100 (Routine)
1 December 1939	Camden 1, US	daily rain	44.2 mm (1.7 in)	15.8 mm (0.6 in)	37 years	24 of 100 (Routine)
1 December 1939	Prince Albert, CA	daily high min	-2.8 C (27.0 F)	2.2 C (4.0 F)	54 years	23 of 100 (Routine)
1 December 1939	Mott, US	monthly high max	16.7 C (62.1 F)	1.7 C (3.1 F)	31 years	23 of 100 (Routine)
1 December 1939	Mackay Post Office, AU	daily high max	35.7 C (96.3 F)	1.8 C (3.2 F)	25 years	22 of 100 (Routine)
1 December 1939	Brownsville, US	daily rain	28.7 mm (1.1 in)	24.6 mm (1.0 in)	12 years	22 of 100 (Routine)
1 December 1939	Mc Minnville, US	daily rain	26.2 mm (1.0 in)	12.0 mm (0.5 in)	30 years	22 of 100 (Routine)
1 December 1939	Graz, AT	monthly high max	15.0 C (59.0 F)	0.2 C (0.4 F)	23 years	21 of 100 (Routine)
1 December 1939	Budapest, HU	monthly high min	10.0 C (50.0 F)	0.5 C (0.9 F)	23 years	21 of 100 (Routine)
1 December 1939	Detroit Lakes 1 NNE, US	monthly high max	11.1 C (52.0 F)	0.5 C (0.9 F)	25 years	21 of 100 (Routine)
1 December 1939	Nordby (Fano), DK	daily rain	21.0 mm (0.8 in)	11.2 mm (0.4 in)	62 years	20 of 100 (Routine)
1 December 1939	Bezenchuk, RU	monthly rain	23.4 mm (0.9 in)	7.3 mm (0.29 in)	23 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

1797 to 1939

Records set or tied on this calendar date in each year from 1797 to 1939. 1939 had 346 records.

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

Records on 12-01 in each year
Year	Records
1797	1
1805	1
1807	2
1810	1
1817	2
1821	1
1823	2
1831	1
1849	1
1856	3
1857	1
1858	1
1861	1
1863	1
1869	2
1871	1
1872	3
1873	6
1875	8
1876	4
1877	1
1879	7
1884	3
1885	3
1886	1
1887	2
1888	3
1889	2
1890	6
1891	1
1892	2
1893	1
1894	1
1895	4
1896	4
1897	10
1898	5
1899	4
1901	5
1902	7
1903	13
1904	4
1905	11
1906	3
1907	8
1908	40
1909	64
1910	39
1911	45
1912	37
1913	53
1914	142
1915	23
1916	29
1917	52
1918	32
1919	78
1920	192
1921	55
1922	85
1923	70
1924	135
1925	145
1926	115
1927	271
1928	85
1929	515
1930	128
1931	337
1932	383
1933	656
1934	667
1935	164
1936	433
1937	238
1938	159
1939	346
1940	300
1941	391
1942	424
1943	93
1944	478
1945	259
1946	224
1947	392
1948	252
1949	313
1950	437
1951	585
1952	762
1953	283
1954	308
1955	624
1956	338
1957	295
1958	531
1959	355
1960	258
1961	373
1962	1,073
1963	282
1964	1,181
1965	598
1966	995
1967	601
1968	883
1969	673
1970	1,299
1971	574
1972	843
1973	888
1974	1,339
1975	1,007
1976	1,294
1977	1,166
1978	777
1979	874
1980	1,019
1981	1,320
1982	1,759
1983	1,275
1984	513
1985	3,874
1986	803
1987	1,020
1988	538
1989	822
1990	514
1991	2,124
1992	552
1993	597
1994	717
1995	1,386
1996	1,448
1997	736
1998	1,698
1999	790
2000	777
2001	1,211
2002	637
2003	627
2004	1,033
2005	815
2006	2,866
2007	1,427
2008	879
2009	927
2010	1,991
2011	947
2012	1,027
2013	400
2014	677
2015	850
2016	384
2017	496
2018	807
2019	803
2020	567
2021	2,030
2022	584
2023	609
2024	636
2025	679

Download the Data

Data for records on 1939-12-01: 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 5	219
5 to 10	29
10 to 15	13
15 to 20	4
20 to 25	1