Weather Records on 12 April 1939

1,174 weather records were set or tied worldwide on 12 April 1939. Highest significance: Cape Otway Lighthouse, AU.

Key Facts for 12 April 1939

On 12 April 1939, 1,174 weather records were set or tied at long-record stations worldwide.
105 were record highs and 785 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 1,164 daily.
Cape Otway Lighthouse set a monthly record daily precipitation of 61.5 mm (2.4 in) on 12 April 1939.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 497 records.

Record Map

1,174 stations

1,174 station records on 12 April 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 April 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cape Otway Lighthouse	Australia	Record daily precipitation	61.5 mm (2.4 in)	66 of 100 (Major)
Mathoura (Mathoura Station)	Australia	Record daily precipitation	38.9 mm (1.5 in)	61 of 100 (Major)
Port Campbell Post Office	Australia	Record daily precipitation	59.4 mm (2.3 in)	59 of 100 (Notable)
Gooloogong Post Office	Australia	Record daily precipitation	46.2 mm (1.8 in)	55 of 100 (Notable)
Princetown	Australia	Record daily precipitation	47.0 mm (1.9 in)	44 of 100 (Notable)
Princetown (Rivernook)	Australia	Record daily precipitation	48.8 mm (1.9 in)	44 of 100 (Notable)
Parrsboro	Canada	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Hay (Mulberrygong)	Australia	Record daily precipitation	31.2 mm (1.2 in)	43 of 100 (Notable)
Clyde State School	Australia	Record daily precipitation	62.2 mm (2.4 in)	43 of 100 (Notable)
Nymagee (Pyramid)	Australia	Record daily precipitation	79.0 mm (3.1 in)	40 of 100 (Notable)
Warranooke (Glenorchy)	Australia	Record daily precipitation	25.9 mm (1.0 in)	38 of 100 (Notable)
Moscow U of I	United States	Record daily snowfall	6.4 cm (2.5 in)	37 of 100 (Notable)
Marble Bar Comparison	Australia	Record daily precipitation	58.4 mm (2.3 in)	36 of 100 (Notable)
Dingee	Australia	Record daily precipitation	25.7 mm (1.0 in)	36 of 100 (Notable)
Woodend (Carlisle Street)	Australia	Record daily precipitation	46.5 mm (1.8 in)	36 of 100 (Notable)
Uccle	Belgium	Record high maximum temperature	25.9 C (78.6 F)	36 of 100 (Notable)
Oxford	United Kingdom	Record high minimum temperature	11.7 C (53.1 F)	34 of 100 (Routine)
Emu Park Hill St	Australia	Record daily precipitation	79.5 mm (3.1 in)	33 of 100 (Routine)
Barauli	India	Record daily precipitation	35.8 mm (1.4 in)	33 of 100 (Routine)
Lawrence	United States	Record low minimum temperature	-5.6 C (21.9 F)	32 of 100 (Routine)
Mount Gambier Post Office	Australia	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
Barmedman Post Office	Australia	Record daily precipitation	25.7 mm (1.0 in)	31 of 100 (Routine)
Toronto	Canada	Record low maximum temperature	0.6 C (33.1 F)	31 of 100 (Routine)
Thamaraikulam	India	Record daily precipitation	44.2 mm (1.7 in)	31 of 100 (Routine)
Neidavasal	India	Record daily precipitation	45.7 mm (1.8 in)	31 of 100 (Routine)
Milwaukee Wb City	United States	Record low minimum temperature	-7.2 C (19.0 F)	31 of 100 (Routine)
Eurugabah Station	Australia	Record daily precipitation	32.0 mm (1.3 in)	30 of 100 (Routine)
Johanna Glen	Australia	Record daily precipitation	42.4 mm (1.7 in)	30 of 100 (Routine)
La Crosse Wb City	United States	Record low minimum temperature	-7.2 C (19.0 F)	30 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record high maximum temperature	24.7 C (76.5 F)	29 of 100 (Routine)
Kotarh	India	Record daily precipitation	42.9 mm (1.7 in)	29 of 100 (Routine)
Dubuque River	United States	Record low minimum temperature	-6.1 C (21.0 F)	29 of 100 (Routine)
Lake Leake (Kooeeyong)	Australia	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Fredonia	United States	Record low maximum temperature	3.9 C (39.0 F)	28 of 100 (Routine)
Independence	United States	Record low maximum temperature	5.0 C (41.0 F)	28 of 100 (Routine)
Lawrence	United States	Record low maximum temperature	5.6 C (42.1 F)	28 of 100 (Routine)
Newton	United States	Record low maximum temperature	2.8 C (37.0 F)	28 of 100 (Routine)
Green Bay	United States	Record low minimum temperature	-8.3 C (17.1 F)	28 of 100 (Routine)
Millicent	Australia	Record daily precipitation	29.7 mm (1.2 in)	27 of 100 (Routine)
West Wyalong Post Office	Australia	Record daily precipitation	26.9 mm (1.1 in)	27 of 100 (Routine)
Uardry 2 Out Station	Australia	Record daily precipitation	43.7 mm (1.7 in)	27 of 100 (Routine)
Jayamkondam	India	Record daily precipitation	26.7 mm (1.1 in)	27 of 100 (Routine)
Hutchinson River	United States	Record low maximum temperature	2.8 C (37.0 F)	27 of 100 (Routine)
Chanute Martin Johnson AP	United States	Record low maximum temperature	3.3 C (37.9 F)	27 of 100 (Routine)
Concordia ASOS	United States	Record low maximum temperature	2.8 C (37.0 F)	27 of 100 (Routine)
Burlington	United States	Record low maximum temperature	1.7 C (35.1 F)	26 of 100 (Routine)
Clay Ctr	United States	Record low maximum temperature	4.4 C (39.9 F)	26 of 100 (Routine)
New Ulm 2 SE	United States	Record low maximum temperature	-2.2 C (28.0 F)	26 of 100 (Routine)
Franklin	United States	Record low maximum temperature	1.7 C (35.1 F)	26 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record low minimum temperature	-6.7 C (19.9 F)	26 of 100 (Routine)
Barramunga	Australia	Record daily precipitation	38.1 mm (1.5 in)	25 of 100 (Routine)
Carroll	United States	Record low minimum temperature	-9.4 C (15.1 F)	25 of 100 (Routine)
Osage	United States	Record low minimum temperature	-8.3 C (17.1 F)	25 of 100 (Routine)
Sigourney	United States	Record low minimum temperature	-8.9 C (16.0 F)	25 of 100 (Routine)
Manhattan	United States	Record low maximum temperature	3.9 C (39.0 F)	25 of 100 (Routine)
Minneapolis	United States	Record low maximum temperature	3.9 C (39.0 F)	25 of 100 (Routine)
Genoa 2 W	United States	Record low minimum temperature	-10.6 C (12.9 F)	25 of 100 (Routine)
York	United States	Record low minimum temperature	-10.6 C (12.9 F)	25 of 100 (Routine)
Robe Comparison	Australia	Record high minimum temperature	17.2 C (63.0 F)	24 of 100 (Routine)
Carrathool (Uardry)	Australia	Record daily precipitation	29.2 mm (1.1 in)	24 of 100 (Routine)

Counts by Type and Timescale

1,174 records

Records set or tied on 12 April 1939 by type: Highest daily maximum 56, Lowest daily maximum 252, Highest daily minimum 49, Lowest daily minimum 533, Heaviest daily rainfall 251, Heaviest daily snowfall 30, Deepest snow cover 3.

Records on 12 April 1939 by type
Record type	Records
Highest daily maximum	56
Lowest daily maximum	252
Highest daily minimum	49
Lowest daily minimum	533
Heaviest daily rainfall	251
Heaviest daily snowfall	30
Deepest snow cover	3

Records on 12 April 1939 by timescale: all-time 0, monthly 10, daily 1,164.

How Much Records Were Beaten By

1,042 broken records

Margins by which the 1,042 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 96.0. Ties are not counted.

Top 20 by Significance

12 April 1939

Top 20 records on 12 April 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 April 1939	Cape Otway Lighthouse, AU	monthly rain	61.5 mm (2.4 in)	23.1 mm (0.9 in)	35 years	66 of 100 (Major)
12 April 1939	Mathoura (Mathoura Station), AU	daily rain	38.9 mm (1.5 in)	38.9 mm (1.5 in)	53 years	61 of 100 (Major)
12 April 1939	Port Campbell Post Office, AU	daily rain	59.4 mm (2.3 in)	34.0 mm (1.3 in)	46 years	59 of 100 (Notable)
12 April 1939	Gooloogong Post Office, AU	daily rain	46.2 mm (1.8 in)	42.6 mm (1.7 in)	36 years	55 of 100 (Notable)
12 April 1939	Princetown, AU	daily rain	47.0 mm (1.9 in)	28.2 mm (1.1 in)	5 years	44 of 100 (Notable)
12 April 1939	Princetown (Rivernook), AU	daily rain	48.8 mm (1.9 in)	32.3 mm (1.3 in)	5 years	44 of 100 (Notable)
12 April 1939	Parrsboro, CA	daily rain	33.0 mm (1.3 in)	27.7 mm (1.1 in)	34 years	44 of 100 (Notable)
12 April 1939	Hay (Mulberrygong), AU	daily rain	31.2 mm (1.2 in)	27.6 mm (1.1 in)	18 years	43 of 100 (Notable)
12 April 1939	Clyde State School, AU	monthly rain	62.2 mm (2.4 in)	11.4 mm (0.4 in)	50 years	43 of 100 (Notable)
12 April 1939	Nymagee (Pyramid), AU	monthly rain	79.0 mm (3.1 in)	10.4 mm (0.4 in)	50 years	40 of 100 (Notable)
12 April 1939	Warranooke (Glenorchy), AU	daily rain	25.9 mm (1.0 in)	21.3 mm (0.8 in)	5 years	38 of 100 (Notable)
12 April 1939	Moscow U of I, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	44 years	37 of 100 (Notable)
12 April 1939	Marble Bar Comparison, AU	daily rain	58.4 mm (2.3 in)	48.5 mm (1.9 in)	36 years	36 of 100 (Notable)
12 April 1939	Dingee, AU	daily rain	25.7 mm (1.0 in)	19.3 mm (0.8 in)	24 years	36 of 100 (Notable)
12 April 1939	Woodend (Carlisle Street), AU	daily rain	46.5 mm (1.8 in)	25.4 mm (1.0 in)	24 years	36 of 100 (Notable)
12 April 1939	Uccle, BE	daily high max	25.9 C (78.6 F)	2.7 C (4.9 F)	69 years	36 of 100 (Notable)
12 April 1939	Oxford, GB	daily high min	11.7 C (53.1 F)	1.2 C (2.2 F)	72 years	34 of 100 (Routine)
12 April 1939	Emu Park Hill St, AU	daily rain	79.5 mm (3.1 in)	51.6 mm (2.0 in)	22 years	33 of 100 (Routine)
12 April 1939	Barauli, IN	daily rain	35.8 mm (1.4 in)	18.5 mm (0.7 in)	32 years	33 of 100 (Routine)
12 April 1939	Lawrence, US	daily low min	-5.6 C (21.9 F)	2.8 C (5.0 F)	69 years	32 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 1,174 records.

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

Records on 04-12 in each year
Year	Records
1793	1
1805	1
1810	1
1812	2
1817	2
1826	1
1831	1
1845	1
1850	1
1854	1
1865	2
1866	2
1868	4
1869	5
1871	1
1873	1
1874	5
1876	2
1877	1
1878	1
1879	4
1881	1
1882	1
1885	2
1889	4
1890	10
1891	3
1892	2
1893	4
1894	1
1895	1
1896	1
1897	4
1898	4
1899	5
1900	6
1901	5
1902	3
1903	10
1904	11
1905	19
1906	24
1907	5
1908	10
1909	16
1910	15
1911	26
1912	48
1913	88
1914	41
1915	125
1916	37
1917	33
1918	40
1919	39
1920	148
1921	34
1922	48
1923	134
1924	69
1925	178
1926	347
1927	179
1928	145
1929	141
1930	638
1931	267
1932	253
1933	551
1934	531
1935	171
1936	277
1937	236
1938	175
1939	1,174
1940	1,407
1941	869
1942	191
1943	614
1944	423
1945	884
1946	347
1947	733
1948	1,496
1949	358
1950	638
1951	1,102
1952	455
1953	707
1954	424
1955	611
1956	382
1957	910
1958	542
1959	513
1960	314
1961	551
1962	510
1963	518
1964	363
1965	659
1966	520
1967	682
1968	717
1969	352
1970	568
1971	587
1972	1,316
1973	903
1974	822
1975	704
1976	1,076
1977	1,069
1978	533
1979	1,096
1980	611
1981	1,068
1982	852
1983	877
1984	671
1985	734
1986	1,350
1987	606
1988	1,369
1989	1,838
1990	946
1991	1,484
1992	1,000
1993	586
1994	1,375
1995	1,173
1996	994
1997	3,094
1998	1,409
1999	873
2000	784
2001	1,369
2002	600
2003	1,079
2004	964
2005	536
2006	796
2007	1,144
2008	1,015
2009	811
2010	935
2011	1,026
2012	666
2013	1,039
2014	597
2015	504
2016	595
2017	519
2018	868
2019	685
2020	1,150
2021	710
2022	1,862
2023	1,262
2024	1,086
2025	1,281
2026	622

Download the Data

Data for records on 1939-04-12: 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	1,006
20 to 40	25
40 to 60	7
60 to 80	3
80 to 100	1