Weather Records on 12 December 1939

418 weather records were set or tied worldwide on 12 December 1939. Highest significance: Amersfoort (Pol), ZA.

Key Facts for 12 December 1939

On 12 December 1939, 418 weather records were set or tied at long-record stations worldwide.
368 were record highs and 4 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 22 monthly and 396 daily.
Amersfoort (Pol) set a daily record precipitation of 65.3 mm (2.6 in) on 12 December 1939.
Across 153 earlier years (1796 to 2025) the same calendar date averaged 469 records.

Record Map

418 stations

418 station records on 12 December 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 December 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Amersfoort (Pol)	South Africa	Record daily precipitation	65.3 mm (2.6 in)	39 of 100 (Notable)
Lawrence	United States	Record high minimum temperature	9.4 C (48.9 F)	32 of 100 (Routine)
Plauen	Germany	Record snow depth	18.0 cm (7.1 in)	31 of 100 (Routine)
Dirranbandi High School	Australia	Record daily precipitation	44.7 mm (1.8 in)	30 of 100 (Routine)
Colby	United States	Record high minimum temperature	7.2 C (45.0 F)	29 of 100 (Routine)
Degilbo Rail STN	Australia	Record daily precipitation	55.9 mm (2.2 in)	28 of 100 (Routine)
Curtis	United States	Record high minimum temperature	2.8 C (37.0 F)	27 of 100 (Routine)
Garsebach Bei Meissen	Germany	Record snow depth	12.0 cm (4.7 in)	26 of 100 (Routine)
Pattanamphitta	India	Record daily precipitation	51.1 mm (2.0 in)	26 of 100 (Routine)
Grootvlei (Pol)	South Africa	Record daily precipitation	29.7 mm (1.2 in)	26 of 100 (Routine)
Haileybury	Canada	Record daily snowfall	9.4 cm (3.7 in)	25 of 100 (Routine)
Thamaraikulam	India	Record daily precipitation	54.4 mm (2.1 in)	25 of 100 (Routine)
Schoonoord	South Africa	Record daily precipitation	35.3 mm (1.4 in)	25 of 100 (Routine)
Albion	United States	Record high minimum temperature	8.9 C (48.0 F)	25 of 100 (Routine)
Balfour (Mag)	South Africa	Record daily precipitation	108.2 mm (4.3 in)	24 of 100 (Routine)
Espanola	United States	Record high maximum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Forestburg 4 NNE	United States	Record high minimum temperature	4.4 C (39.9 F)	23 of 100 (Routine)
Phillipsburg 1 SSE	United States	Record high minimum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Tribune 1W	United States	Record high minimum temperature	5.0 C (41.0 F)	22 of 100 (Routine)
David City 4E	United States	Record high minimum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Jeir	Australia	Record daily precipitation	30.5 mm (1.2 in)	21 of 100 (Routine)
Scottsburg	United States	Record high maximum temperature	20.6 C (69.1 F)	21 of 100 (Routine)
Hutchinson River	United States	Record high minimum temperature	8.3 C (46.9 F)	21 of 100 (Routine)
Norwich	United States	Record high minimum temperature	10.6 C (51.1 F)	21 of 100 (Routine)
Alva 1W	United States	Record high minimum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Tarago (Kildare)	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Tamar	India	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Gongolgon Post Office	Australia	Record daily precipitation	5.1 mm (0.20 in)	20 of 100 (Routine)
Pirie (Bos)	South Africa	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Escondido	United States	Record high maximum temperature	28.3 C (82.9 F)	20 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	11.7 C (53.1 F)	20 of 100 (Routine)
Chickasha	United States	Record high minimum temperature	12.2 C (54.0 F)	20 of 100 (Routine)
Cloud Chief 2 SE	United States	Record high minimum temperature	11.7 C (53.1 F)	20 of 100 (Routine)
Adelaide West Terrace	Australia	Record low maximum temperature	19.3 C (66.7 F)	19 of 100 (Routine)
Padwa	India	Record daily precipitation	5.8 mm (0.23 in)	19 of 100 (Routine)
Fort Cunynghame (Bos)	South Africa	Record daily precipitation	10.2 mm (0.4 in)	19 of 100 (Routine)
Cedar Rapids #1	United States	Record high minimum temperature	2.8 C (37.0 F)	19 of 100 (Routine)
Enid	United States	Record high minimum temperature	11.7 C (53.1 F)	19 of 100 (Routine)
Waukomis	United States	Record high minimum temperature	11.1 C (52.0 F)	19 of 100 (Routine)
Houston Wb City	United States	Record high maximum temperature	27.8 C (82.0 F)	19 of 100 (Routine)
Anthony	United States	Record high minimum temperature	11.1 C (52.0 F)	19 of 100 (Routine)
Blayney Post Office	Australia	Record daily precipitation	31.0 mm (1.2 in)	18 of 100 (Routine)
Fairlight Station	Australia	Record daily precipitation	15.2 mm (0.6 in)	18 of 100 (Routine)
Kottarakara	India	Record daily precipitation	34.3 mm (1.4 in)	18 of 100 (Routine)
Tucson WFO	United States	Record high maximum temperature	25.6 C (78.1 F)	18 of 100 (Routine)
Hampton	United States	Record high minimum temperature	2.2 C (36.0 F)	18 of 100 (Routine)
Ashland	United States	Record high minimum temperature	9.4 C (48.9 F)	18 of 100 (Routine)
Iola	United States	Record high minimum temperature	10.6 C (51.1 F)	18 of 100 (Routine)
Liberal	United States	Record high minimum temperature	11.1 C (52.0 F)	18 of 100 (Routine)
Pratt 3NW	United States	Record high minimum temperature	10.0 C (50.0 F)	18 of 100 (Routine)
Springer	United States	Record high minimum temperature	0.0 C (32.0 F)	18 of 100 (Routine)
Stillwater 2 W	United States	Record high minimum temperature	14.4 C (57.9 F)	18 of 100 (Routine)
Fairfax	United States	Record high minimum temperature	3.9 C (39.0 F)	18 of 100 (Routine)
Clarksville Wwtp	United States	Record high maximum temperature	21.7 C (71.1 F)	18 of 100 (Routine)
Nyngan (Merryanbone)	Australia	Record daily precipitation	13.5 mm (0.5 in)	17 of 100 (Routine)
Quesnel	Canada	Record high maximum temperature	11.1 C (52.0 F)	17 of 100 (Routine)
Punalur	India	Record daily precipitation	16.5 mm (0.6 in)	17 of 100 (Routine)
Gunnison 3SW	United States	Record high maximum temperature	14.4 C (57.9 F)	17 of 100 (Routine)
Sigourney	United States	Record high maximum temperature	12.2 C (54.0 F)	17 of 100 (Routine)
Leavenworth	United States	Record high minimum temperature	10.0 C (50.0 F)	17 of 100 (Routine)

Counts by Type and Timescale

418 records

Records set or tied on 12 December 1939 by type: Highest daily maximum 156, Lowest daily maximum 2, Highest daily minimum 212, Lowest daily minimum 2, Heaviest daily rainfall 43, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 12 December 1939 by type
Record type	Records
Highest daily maximum	156
Lowest daily maximum	2
Highest daily minimum	212
Lowest daily minimum	2
Heaviest daily rainfall	43
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 12 December 1939 by timescale: all-time 0, monthly 22, daily 396.

How Much Records Were Beaten By

344 broken records

Margins by which the 344 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

12 December 1939

Top 20 records on 12 December 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 December 1939	Amersfoort (Pol), ZA	daily rain	65.3 mm (2.6 in)	42.4 mm (1.7 in)	2 years	39 of 100 (Notable)
12 December 1939	Lawrence, US	daily high min	9.4 C (48.9 F)	3.8 C (6.8 F)	69 years	32 of 100 (Routine)
12 December 1939	Plauen, DE	daily snow depth	18.0 cm (7.1 in)	9.0 cm (3.5 in)	32 years	31 of 100 (Routine)
12 December 1939	Dirranbandi High School, AU	daily rain	44.7 mm (1.8 in)	22.3 mm (0.9 in)	30 years	30 of 100 (Routine)
12 December 1939	Colby, US	monthly high min	7.2 C (45.0 F)	2.2 C (4.0 F)	42 years	29 of 100 (Routine)
12 December 1939	Degilbo Rail STN, AU	daily rain	55.9 mm (2.2 in)	29.2 mm (1.1 in)	28 years	28 of 100 (Routine)
12 December 1939	Curtis, US	monthly high min	2.8 C (37.0 F)	0.6 C (1.1 F)	44 years	27 of 100 (Routine)
12 December 1939	Garsebach Bei Meissen, DE	daily snow depth	12.0 cm (4.7 in)	9.0 cm (3.5 in)	5 years	26 of 100 (Routine)
12 December 1939	Pattanamphitta, IN	daily rain	51.1 mm (2.0 in)	37.1 mm (1.5 in)	13 years	26 of 100 (Routine)
12 December 1939	Grootvlei (Pol), ZA	daily rain	29.7 mm (1.2 in)	16.7 mm (0.7 in)	33 years	26 of 100 (Routine)
12 December 1939	Haileybury, CA	daily snowfall	9.4 cm (3.7 in)	4.3 cm (1.7 in)	36 years	25 of 100 (Routine)
12 December 1939	Thamaraikulam, IN	daily rain	54.4 mm (2.1 in)	48.0 mm (1.9 in)	13 years	25 of 100 (Routine)
12 December 1939	Schoonoord, ZA	daily rain	35.3 mm (1.4 in)	13.7 mm (0.5 in)	32 years	25 of 100 (Routine)
12 December 1939	Albion, US	monthly high min	8.9 C (48.0 F)	2.8 C (5.0 F)	26 years	25 of 100 (Routine)
12 December 1939	Balfour (Mag), ZA	monthly rain	108.2 mm (4.3 in)	6.1 mm (0.24 in)	22 years	24 of 100 (Routine)
12 December 1939	Espanola, US	daily high max	18.3 C (64.9 F)	3.9 C (7.0 F)	43 years	24 of 100 (Routine)
12 December 1939	Forestburg 4 NNE, US	monthly high min	4.4 C (39.9 F)	2.2 C (4.0 F)	26 years	23 of 100 (Routine)
12 December 1939	Phillipsburg 1 SSE, US	monthly high min	8.9 C (48.0 F)	0.6 C (1.1 F)	26 years	22 of 100 (Routine)
12 December 1939	Tribune 1W, US	monthly high min	5.0 C (41.0 F)	0.6 C (1.1 F)	26 years	22 of 100 (Routine)
12 December 1939	David City 4E, US	monthly high min	8.9 C (48.0 F)	1.1 C (2.0 F)	26 years	22 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 418 records.

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

Records on 12-12 in each year
Year	Records
1796	2
1798	1
1802	1
1808	2
1814	1
1825	2
1831	1
1835	2
1846	1
1855	2
1861	1
1863	3
1870	2
1871	5
1873	2
1879	2
1882	3
1887	1
1889	1
1891	2
1892	2
1893	8
1894	3
1895	1
1896	4
1897	3
1898	20
1899	11
1900	5
1901	4
1902	7
1903	18
1904	20
1905	10
1906	14
1907	8
1908	25
1909	20
1910	39
1911	104
1912	53
1913	20
1914	19
1915	46
1916	115
1917	246
1918	33
1919	23
1920	41
1921	63
1922	61
1923	91
1924	130
1925	75
1926	143
1927	335
1928	234
1929	405
1930	45
1931	522
1932	813
1933	358
1934	430
1935	266
1936	142
1937	468
1938	103
1939	418
1940	621
1941	260
1942	257
1943	165
1944	688
1945	212
1946	761
1947	295
1948	282
1949	789
1950	364
1951	175
1952	501
1953	288
1954	696
1955	381
1956	441
1957	1,118
1958	884
1959	464
1960	710
1961	1,481
1962	1,495
1963	439
1964	459
1965	1,045
1966	369
1967	565
1968	727
1969	499
1970	366
1971	585
1972	1,669
1973	397
1974	191
1975	492
1976	319
1977	907
1978	382
1979	1,016
1980	583
1981	734
1982	867
1983	816
1984	808
1985	1,384
1986	408
1987	468
1988	1,030
1989	930
1990	676
1991	1,980
1992	818
1993	887
1994	1,172
1995	2,030
1996	1,391
1997	869
1998	1,103
1999	952
2000	2,510
2001	700
2002	683
2003	537
2004	727
2005	769
2006	886
2007	1,315
2008	1,424
2009	818
2010	1,501
2011	621
2012	684
2013	646
2014	1,040
2015	1,496
2016	530
2017	808
2018	256
2019	418
2020	507
2021	441
2022	767
2023	544
2024	328
2025	1,485

Download the Data

Data for records on 1939-12-12: 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	335
20 to 40	4
40 to 60	3
60 to 80	0
80 to 100	2