Weather Records on 23 December 1939

264 weather records were set or tied worldwide on 23 December 1939. Highest significance: Pentland Post Office, AU.

Key Facts for 23 December 1939

On 23 December 1939, 264 weather records were set or tied at long-record stations worldwide.
30 were record highs and 18 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 259 daily.
Pentland Post Office set a daily record precipitation of 101.6 mm (4.0 in) on 23 December 1939.
Across 150 earlier years (1793 to 2025) the same calendar date averaged 547 records.

Record Map

264 stations

264 station records on 23 December 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 23 December 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pentland Post Office	Australia	Record daily precipitation	101.6 mm (4.0 in)	57 of 100 (Notable)
Robeline	United States	Record daily precipitation	112.0 mm (4.4 in)	40 of 100 (Notable)
Tribune 1W	United States	Record daily snowfall	20.3 cm (8.0 in)	37 of 100 (Notable)
Tangorin	Australia	Record daily precipitation	68.6 mm (2.7 in)	35 of 100 (Notable)
Qu'appelle	Canada	Record daily snowfall	11.2 cm (4.4 in)	35 of 100 (Notable)
Nacogdoches	United States	Record daily precipitation	149.9 mm (5.9 in)	33 of 100 (Routine)
Cottonwood 2 E	United States	Record daily snowfall	10.2 cm (4.0 in)	32 of 100 (Routine)
Holly	United States	Record daily snowfall	20.3 cm (8.0 in)	31 of 100 (Routine)
Logansport	United States	Record daily precipitation	134.4 mm (5.3 in)	30 of 100 (Routine)
David City 4E	United States	Record daily snowfall	15.2 cm (6.0 in)	29 of 100 (Routine)
Pawnee City	United States	Record daily snowfall	5.1 cm (2.0 in)	29 of 100 (Routine)
Melbourne Regional Office	Australia	Record low minimum temperature	7.7 C (45.9 F)	28 of 100 (Routine)
Two Buttes	United States	Record daily snowfall	14.0 cm (5.5 in)	28 of 100 (Routine)
Elkhart	United States	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Hillgrove Station	Australia	Record daily precipitation	85.9 mm (3.4 in)	27 of 100 (Routine)
Colby	United States	Record snow depth	12.7 cm (5.0 in)	27 of 100 (Routine)
Marseille Obs. Palais-Lonchamp	France	Record daily precipitation	30.5 mm (1.2 in)	26 of 100 (Routine)
Gordon 6N	United States	Record snow depth	10.2 cm (4.0 in)	26 of 100 (Routine)
St Louis Eads Brg	United States	Record daily snowfall	14.0 cm (5.5 in)	26 of 100 (Routine)
Glenwood 3SW	United States	Record daily snowfall	5.1 cm (2.0 in)	25 of 100 (Routine)
Dalhart Exp STN	United States	Record snow depth	12.7 cm (5.0 in)	25 of 100 (Routine)
Grand Cane Fire Twr	United States	Record daily precipitation	59.4 mm (2.3 in)	24 of 100 (Routine)
Dalhart Exp STN	United States	Record daily snowfall	12.4 cm (4.9 in)	24 of 100 (Routine)
Low Head (Comparison)	Australia	Record low maximum temperature	13.9 C (57.0 F)	23 of 100 (Routine)
Natchez	United States	Record daily precipitation	71.6 mm (2.8 in)	23 of 100 (Routine)
Madrid	United States	Record daily snowfall	10.2 cm (4.0 in)	23 of 100 (Routine)
Murfreesboro 5 N	United States	Record daily precipitation	36.1 mm (1.4 in)	23 of 100 (Routine)
Claude	United States	Record daily snowfall	5.1 cm (2.0 in)	23 of 100 (Routine)
Enisejsk	Russia	Record high minimum temperature	-2.8 C (27.0 F)	22 of 100 (Routine)
Oberlin	United States	Record daily snowfall	10.2 cm (4.0 in)	22 of 100 (Routine)
Gage	United States	Record daily snowfall	10.2 cm (4.0 in)	22 of 100 (Routine)
Tribune 1W	United States	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Hugoton	United States	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Qu'appelle	Canada	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Robben Island (Vrt)	South Africa	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Two Buttes	United States	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Superior	United States	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Holyoke	United States	Record daily precipitation	5.8 mm (0.23 in)	20 of 100 (Routine)
Rolla Missouri S&T	United States	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Hastings 4N	United States	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Ancho	United States	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Kennebec	United States	Record daily precipitation	5.8 mm (0.23 in)	20 of 100 (Routine)
Ness City	United States	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Ericson 8 WNW	United States	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Miller	United States	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Osceola	United States	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Chattanooga Wb City	United States	Record daily snowfall	0.5 cm (0.2 in)	20 of 100 (Routine)
Kindred (Invergordon)	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Bell Ranch	United States	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Pindathuna	Australia	Record daily precipitation	5.1 mm (0.20 in)	20 of 100 (Routine)
Port Arthur	Australia	Record daily precipitation	23.1 mm (0.9 in)	20 of 100 (Routine)
Lamar	United States	Record daily precipitation	8.1 mm (0.32 in)	20 of 100 (Routine)
Leoti	United States	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Aurora	United States	Record daily precipitation	6.6 mm (0.26 in)	20 of 100 (Routine)
Tucumcari 4 NE	United States	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Regina Int'l A	Canada	Record daily precipitation	5.3 mm (0.21 in)	20 of 100 (Routine)
Regina Int'l A	Canada	Record daily snowfall	5.3 cm (2.1 in)	20 of 100 (Routine)
Bell Ranch	United States	Record daily snowfall	10.2 cm (4.0 in)	20 of 100 (Routine)
Gallinas Rs	United States	Record daily precipitation	6.9 mm (0.27 in)	20 of 100 (Routine)
San Jon	United States	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)

Counts by Type and Timescale

264 records

Records set or tied on 23 December 1939 by type: Highest daily maximum 10, Lowest daily maximum 8, Highest daily minimum 20, Lowest daily minimum 10, Heaviest daily rainfall 163, Heaviest daily snowfall 41, Deepest snow cover 12.

Records on 23 December 1939 by type
Record type	Records
Highest daily maximum	10
Lowest daily maximum	8
Highest daily minimum	20
Lowest daily minimum	10
Heaviest daily rainfall	163
Heaviest daily snowfall	41
Deepest snow cover	12

Records on 23 December 1939 by timescale: all-time 0, monthly 5, daily 259.

How Much Records Were Beaten By

222 broken records

Margins by which the 222 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

23 December 1939

Top 20 records on 23 December 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
23 December 1939	Pentland Post Office, AU	daily rain	101.6 mm (4.0 in)	75.9 mm (3.0 in)	40 years	57 of 100 (Notable)
23 December 1939	Robeline, US	daily rain	112.0 mm (4.4 in)	57.4 mm (2.3 in)	28 years	40 of 100 (Notable)
23 December 1939	Tribune 1W, US	daily snowfall	20.3 cm (8.0 in)	15.2 cm (6.0 in)	12 years	37 of 100 (Notable)
23 December 1939	Tangorin, AU	daily rain	68.6 mm (2.7 in)	45.5 mm (1.8 in)	12 years	35 of 100 (Notable)
23 December 1939	Qu'appelle, CA	daily snowfall	11.2 cm (4.4 in)	3.6 cm (1.4 in)	55 years	35 of 100 (Notable)
23 December 1939	Nacogdoches, US	monthly rain	149.9 mm (5.9 in)	33.8 mm (1.3 in)	4 years	33 of 100 (Routine)
23 December 1939	Cottonwood 2 E, US	daily snowfall	10.2 cm (4.0 in)	7.2 cm (2.8 in)	17 years	32 of 100 (Routine)
23 December 1939	Holly, US	monthly snowfall	20.3 cm (8.0 in)	2.5 cm (1.0 in)	40 years	31 of 100 (Routine)
23 December 1939	Logansport, US	monthly rain	134.4 mm (5.3 in)	15.0 mm (0.6 in)	34 years	30 of 100 (Routine)
23 December 1939	David City 4E, US	daily snowfall	15.2 cm (6.0 in)	7.6 cm (3.0 in)	12 years	29 of 100 (Routine)
23 December 1939	Pawnee City, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	36 years	29 of 100 (Routine)
23 December 1939	Melbourne Regional Office, AU	daily low min	7.7 C (45.9 F)	0.1 C (0.2 F)	69 years	28 of 100 (Routine)
23 December 1939	Two Buttes, US	daily snowfall	14.0 cm (5.5 in)	8.9 cm (3.5 in)	20 years	28 of 100 (Routine)
23 December 1939	Elkhart, US	daily rain	30.5 mm (1.2 in)	17.8 mm (0.7 in)	20 years	28 of 100 (Routine)
23 December 1939	Hillgrove Station, AU	monthly rain	85.9 mm (3.4 in)	9.7 mm (0.38 in)	26 years	27 of 100 (Routine)
23 December 1939	Colby, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	38 years	27 of 100 (Routine)
23 December 1939	Marseille Obs. Palais-Lonchamp, FR	daily rain	30.5 mm (1.2 in)	6.6 mm (0.26 in)	50 years	26 of 100 (Routine)
23 December 1939	Gordon 6N, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	40 years	26 of 100 (Routine)
23 December 1939	St Louis Eads Brg, US	daily snowfall	14.0 cm (5.5 in)	5.1 cm (2.0 in)	32 years	26 of 100 (Routine)
23 December 1939	Glenwood 3SW, US	daily snowfall	5.1 cm (2.0 in)	4.6 cm (1.8 in)	38 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

1793 to 1939

Records set or tied on this calendar date in each year from 1793 to 1939. 1939 had 264 records.

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

Records on 12-23 in each year
Year	Records
1793	1
1825	1
1829	1
1840	1
1852	1
1855	1
1860	3
1864	1
1868	1
1870	6
1871	2
1875	2
1877	1
1878	1
1880	1
1881	1
1883	2
1887	2
1888	2
1889	2
1891	3
1893	2
1894	5
1896	4
1897	1
1898	4
1899	6
1901	2
1903	5
1904	11
1905	3
1906	16
1907	35
1908	8
1909	59
1910	41
1911	29
1912	36
1913	87
1914	57
1915	59
1916	34
1917	26
1918	51
1919	39
1920	33
1921	219
1922	28
1923	146
1924	257
1925	205
1926	146
1927	100
1928	137
1929	393
1930	141
1931	987
1932	329
1933	734
1934	92
1935	360
1936	370
1937	232
1938	183
1939	264
1940	365
1941	750
1942	534
1943	745
1944	484
1945	752
1946	234
1947	517
1948	528
1949	618
1950	521
1951	405
1952	242
1953	605
1954	348
1955	1,162
1956	496
1957	485
1958	209
1959	352
1960	1,442
1961	320
1962	439
1963	1,391
1964	1,457
1965	653
1966	436
1967	885
1968	891
1969	852
1970	940
1971	695
1972	376
1973	479
1974	611
1975	628
1976	514
1977	663
1978	351
1979	813
1980	516
1981	1,127
1982	1,140
1983	4,533
1984	668
1985	629
1986	571
1987	804
1988	878
1989	3,791
1990	3,241
1991	1,196
1992	504
1993	991
1994	1,091
1995	1,212
1996	1,184
1997	1,016
1998	688
1999	936
2000	746
2001	663
2002	778
2003	766
2004	1,231
2005	903
2006	1,194
2007	873
2008	771
2009	1,073
2010	1,298
2011	735
2012	817
2013	1,235
2014	1,070
2015	1,972
2016	432
2017	621
2018	373
2019	699
2020	916
2021	702
2022	1,426
2023	856
2024	637
2025	1,678

Download the Data

Data for records on 1939-12-23: 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	179
20 to 40	23
40 to 60	10
60 to 80	3
80 to 100	3
100 to 120	1
120 to 140	2
140 to 160	1