Weather Records on 15 December 1939

637 weather records were set or tied worldwide on 15 December 1939. Highest significance: Olympia Priest Pt Park, US.

Key Facts for 15 December 1939

On 15 December 1939, 637 weather records were set or tied at long-record stations worldwide.
557 were record highs and 14 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 632 daily.
Olympia Priest Pt Park set a daily record precipitation of 63.5 mm (2.5 in) on 15 December 1939.
Across 168 earlier years (1793 to 2025) the same calendar date averaged 455 records.

Record Map

637 stations

637 station records on 15 December 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 December 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Olympia Priest Pt Park	United States	Record daily precipitation	63.5 mm (2.5 in)	43 of 100 (Notable)
Barkestad	Norway	Record daily precipitation	37.1 mm (1.5 in)	36 of 100 (Notable)
Garsebach Bei Meissen	Germany	Record snow depth	12.0 cm (4.7 in)	32 of 100 (Routine)
Forest Grove	United States	Record daily precipitation	53.6 mm (2.1 in)	29 of 100 (Routine)
Passau-Maierhof	Germany	Record snow depth	20.0 cm (7.9 in)	28 of 100 (Routine)
Falls City 2 SSW	United States	Record daily precipitation	57.7 mm (2.3 in)	28 of 100 (Routine)
Willmar Wwtp	United States	Record high maximum temperature	11.7 C (53.1 F)	27 of 100 (Routine)
Astoria	United States	Record high minimum temperature	9.4 C (48.9 F)	27 of 100 (Routine)
Estacada 2 SE	United States	Record daily precipitation	37.6 mm (1.5 in)	26 of 100 (Routine)
Newport	United States	Record daily precipitation	63.5 mm (2.5 in)	26 of 100 (Routine)
New Westminster	Canada	Record high maximum temperature	13.3 C (55.9 F)	25 of 100 (Routine)
Adel	United States	Record high minimum temperature	6.7 C (44.1 F)	25 of 100 (Routine)
Marion	United States	Record high maximum temperature	17.8 C (64.0 F)	25 of 100 (Routine)
Wallace	United States	Record daily precipitation	35.8 mm (1.4 in)	24 of 100 (Routine)
Jamestown State Hosp	United States	Record high maximum temperature	12.8 C (55.0 F)	24 of 100 (Routine)
Clark	United States	Record high maximum temperature	14.4 C (57.9 F)	24 of 100 (Routine)
Flandreau	United States	Record high maximum temperature	14.4 C (57.9 F)	24 of 100 (Routine)
Howard	United States	Record high maximum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Dubuque River	United States	Record high maximum temperature	11.7 C (53.1 F)	24 of 100 (Routine)
Mackay Post Office	Australia	Record high maximum temperature	36.1 C (97.0 F)	23 of 100 (Routine)
Minnedosa	Canada	Record high maximum temperature	5.6 C (42.1 F)	23 of 100 (Routine)
Chodavaram	India	Record daily precipitation	31.8 mm (1.3 in)	23 of 100 (Routine)
Sierra Madre Henszey	United States	Record high maximum temperature	28.9 C (84.0 F)	23 of 100 (Routine)
Chinook	United States	Record high maximum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Albion	United States	Record high maximum temperature	23.3 C (73.9 F)	23 of 100 (Routine)
Eugene	United States	Record high minimum temperature	10.6 C (51.1 F)	23 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record high maximum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Vancouver Pmo	Canada	Record high maximum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Fort Macleod	Canada	Record high maximum temperature	13.3 C (55.9 F)	22 of 100 (Routine)
Battleford	Canada	Record high minimum temperature	-6.1 C (21.0 F)	22 of 100 (Routine)
Brandon Cda	Canada	Record high maximum temperature	7.8 C (46.0 F)	22 of 100 (Routine)
St Albans	Canada	Record high maximum temperature	8.3 C (46.9 F)	22 of 100 (Routine)
Petrusville (Pol)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	22 of 100 (Routine)
Eckman 2 SE	United States	Record high maximum temperature	12.2 C (54.0 F)	22 of 100 (Routine)
Centralia	United States	Record daily precipitation	35.1 mm (1.4 in)	22 of 100 (Routine)
Odessa	United States	Record high maximum temperature	13.3 C (55.9 F)	22 of 100 (Routine)
Steveston	Canada	Record high maximum temperature	11.7 C (53.1 F)	21 of 100 (Routine)
Cedarville	United States	Record high minimum temperature	2.8 C (37.0 F)	21 of 100 (Routine)
Escondido	United States	Record high maximum temperature	31.1 C (88.0 F)	21 of 100 (Routine)
Priest Rvr Exp STN	United States	Record daily precipitation	38.9 mm (1.5 in)	21 of 100 (Routine)
Horton	United States	Record high maximum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Crow Agency	United States	Record high maximum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Culbertson	United States	Record high maximum temperature	17.8 C (64.0 F)	21 of 100 (Routine)
Fairfax	United States	Record high maximum temperature	18.3 C (64.9 F)	21 of 100 (Routine)
Portland Rfc City	United States	Record high maximum temperature	15.0 C (59.0 F)	21 of 100 (Routine)
Portland Rfc City	United States	Record daily precipitation	34.0 mm (1.3 in)	21 of 100 (Routine)
Bhadgaon	India	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Port Townsend	United States	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Pullman Exp STN	United States	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Hood Rvr Exp STN	United States	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Amalner	India	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Nord-Rana	Norway	Record daily precipitation	25.9 mm (1.0 in)	20 of 100 (Routine)
Buckeye	United States	Record high maximum temperature	26.1 C (79.0 F)	20 of 100 (Routine)
Corning	United States	Record high maximum temperature	15.0 C (59.0 F)	20 of 100 (Routine)
Mt Ayr	United States	Record high maximum temperature	15.0 C (59.0 F)	20 of 100 (Routine)
Colville	United States	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Davenport	United States	Record high maximum temperature	10.6 C (51.1 F)	20 of 100 (Routine)
Lake Keechelus	United States	Record daily precipitation	55.1 mm (2.2 in)	20 of 100 (Routine)
Snoqualmie Falls	United States	Record high maximum temperature	13.3 C (55.9 F)	20 of 100 (Routine)

Counts by Type and Timescale

637 records

Records set or tied on 15 December 1939 by type: Highest daily maximum 439, Lowest daily maximum 6, Highest daily minimum 118, Lowest daily minimum 8, Heaviest daily rainfall 62, Heaviest daily snowfall 1, Deepest snow cover 3.

Records on 15 December 1939 by type
Record type	Records
Highest daily maximum	439
Lowest daily maximum	6
Highest daily minimum	118
Lowest daily minimum	8
Heaviest daily rainfall	62
Heaviest daily snowfall	1
Deepest snow cover	3

Records on 15 December 1939 by timescale: all-time 0, monthly 5, daily 632.

How Much Records Were Beaten By

538 broken records

Margins by which the 538 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.0. Ties are not counted.

Top 20 by Significance

15 December 1939

Top 20 records on 15 December 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 December 1939	Olympia Priest Pt Park, US	daily rain	63.5 mm (2.5 in)	40.4 mm (1.6 in)	32 years	43 of 100 (Notable)
15 December 1939	Barkestad, NO	daily rain	37.1 mm (1.5 in)	22.3 mm (0.9 in)	18 years	36 of 100 (Notable)
15 December 1939	Garsebach Bei Meissen, DE	daily snow depth	12.0 cm (4.7 in)	10.0 cm (3.9 in)	13 years	32 of 100 (Routine)
15 December 1939	Forest Grove, US	daily rain	53.6 mm (2.1 in)	20.6 mm (0.8 in)	32 years	29 of 100 (Routine)
15 December 1939	Passau-Maierhof, DE	daily snow depth	20.0 cm (7.9 in)	6.0 cm (2.4 in)	49 years	28 of 100 (Routine)
15 December 1939	Falls City 2 SSW, US	daily rain	57.7 mm (2.3 in)	26.5 mm (1.0 in)	38 years	28 of 100 (Routine)
15 December 1939	Willmar Wwtp, US	daily high max	11.7 C (53.1 F)	7.3 C (13.1 F)	44 years	27 of 100 (Routine)
15 December 1939	Astoria, US	daily high min	9.4 C (48.9 F)	2.2 C (4.0 F)	50 years	27 of 100 (Routine)
15 December 1939	Estacada 2 SE, US	daily rain	37.6 mm (1.5 in)	18.5 mm (0.7 in)	28 years	26 of 100 (Routine)
15 December 1939	Newport, US	daily rain	63.5 mm (2.5 in)	25.4 mm (1.0 in)	14 years	26 of 100 (Routine)
15 December 1939	New Westminster, CA	daily high max	13.3 C (55.9 F)	0.5 C (0.9 F)	61 years	25 of 100 (Routine)
15 December 1939	Adel, US	monthly high min	6.7 C (44.1 F)	0.6 C (1.1 F)	39 years	25 of 100 (Routine)
15 December 1939	Marion, US	daily high max	17.8 C (64.0 F)	9.5 C (17.1 F)	33 years	25 of 100 (Routine)
15 December 1939	Wallace, US	daily rain	35.8 mm (1.4 in)	20.8 mm (0.8 in)	5 years	24 of 100 (Routine)
15 December 1939	Jamestown State Hosp, US	daily high max	12.8 C (55.0 F)	5.0 C (9.0 F)	44 years	24 of 100 (Routine)
15 December 1939	Clark, US	daily high max	14.4 C (57.9 F)	5.5 C (9.9 F)	44 years	24 of 100 (Routine)
15 December 1939	Flandreau, US	daily high max	14.4 C (57.9 F)	7.7 C (13.9 F)	33 years	24 of 100 (Routine)
15 December 1939	Howard, US	daily high max	15.6 C (60.1 F)	6.7 C (12.1 F)	38 years	24 of 100 (Routine)
15 December 1939	Dubuque River, US	daily high max	11.7 C (53.1 F)	0.6 C (1.1 F)	61 years	24 of 100 (Routine)
15 December 1939	Mackay Post Office, AU	daily high max	36.1 C (97.0 F)	2.2 C (4.0 F)	20 years	23 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

1793 to 1939

Records set or tied on this calendar date in each year from 1793 to 1939. 1939 had 637 records.

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

Records on 12-15 in each year
Year	Records
1793	1
1796	1
1798	1
1800	1
1808	3
1810	1
1814	3
1815	1
1825	1
1831	1
1840	2
1844	2
1846	3
1847	1
1854	3
1859	2
1863	1
1864	1
1866	1
1867	2
1868	1
1869	1
1870	1
1873	1
1874	1
1878	4
1879	2
1880	2
1881	3
1882	2
1883	1
1885	1
1886	1
1889	3
1890	1
1891	2
1892	4
1893	1
1894	4
1895	1
1896	5
1897	2
1899	12
1900	5
1901	21
1902	3
1903	7
1904	9
1905	6
1906	9
1907	10
1908	5
1909	5
1910	4
1911	23
1912	42
1913	13
1914	239
1915	180
1916	40
1917	40
1918	54
1919	28
1920	35
1921	26
1922	65
1923	132
1924	358
1925	187
1926	226
1927	235
1928	388
1929	500
1930	160
1931	284
1932	385
1933	796
1934	199
1935	140
1936	286
1937	310
1938	100
1939	637
1940	464
1941	373
1942	385
1943	486
1944	281
1945	420
1946	521
1947	634
1948	1,239
1949	135
1950	292
1951	962
1952	367
1953	270
1954	413
1955	371
1956	531
1957	304
1958	531
1959	560
1960	313
1961	883
1962	979
1963	670
1964	371
1965	759
1966	275
1967	948
1968	510
1969	352
1970	215
1971	1,739
1972	1,159
1973	615
1974	511
1975	1,230
1976	349
1977	963
1978	499
1979	560
1980	1,085
1981	1,243
1982	831
1983	1,229
1984	1,397
1985	1,077
1986	502
1987	1,740
1988	519
1989	2,753
1990	846
1991	636
1992	1,263
1993	734
1994	676
1995	848
1996	727
1997	1,521
1998	1,216
1999	621
2000	1,154
2001	1,026
2002	831
2003	846
2004	795
2005	953
2006	1,491
2007	973
2008	1,789
2009	930
2010	1,705
2011	780
2012	1,058
2013	701
2014	1,045
2015	1,398
2016	1,024
2017	332
2018	539
2019	547
2020	400
2021	1,182
2022	1,057
2023	794
2024	369
2025	2,115

Download the Data

Data for records on 1939-12-15: 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	528
20 to 40	6
40 to 60	2
60 to 80	1
80 to 100	1