Weather Records on 15 April 1939

789 weather records were set or tied worldwide on 15 April 1939. Highest significance: Portsmouth-Sciotoville, US.

Key Facts for 15 April 1939

On 15 April 1939, 789 weather records were set or tied at long-record stations worldwide.
126 were record highs and 27 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 51 monthly and 736 daily.
Portsmouth-Sciotoville set a monthly record daily precipitation of 112.3 mm (4.4 in) on 15 April 1939.
Across 159 earlier years (1801 to 2026) the same calendar date averaged 491 records.

Record Map

789 stations

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

Weather records on 15 April 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Portsmouth-Sciotoville	United States	Record daily precipitation	112.3 mm (4.4 in)	59 of 100 (Notable)
Jagalur	India	Record daily precipitation	140.2 mm (5.5 in)	58 of 100 (Notable)
Rosewood	Australia	Record daily precipitation	132.1 mm (5.2 in)	56 of 100 (Notable)
Emmaville (Strathbogie)	Australia	Record daily precipitation	67.8 mm (2.7 in)	55 of 100 (Notable)
Palamner	India	Record daily precipitation	151.4 mm (6.0 in)	55 of 100 (Notable)
Mendooran Post Office	Australia	Record daily precipitation	61.2 mm (2.4 in)	54 of 100 (Notable)
Arkonam	India	Record daily precipitation	48.3 mm (1.9 in)	54 of 100 (Notable)
Kancheepuram	India	Record daily precipitation	64.5 mm (2.5 in)	54 of 100 (Notable)
Madurantakam	India	Record daily precipitation	82.0 mm (3.2 in)	54 of 100 (Notable)
Chittoor	India	Record daily precipitation	124.7 mm (4.9 in)	53 of 100 (Notable)
Venkatagiri	India	Record daily precipitation	109.7 mm (4.3 in)	53 of 100 (Notable)
Mauzy	United States	Record daily precipitation	60.5 mm (2.4 in)	53 of 100 (Notable)
Chitradurga	India	Record daily precipitation	35.1 mm (1.4 in)	52 of 100 (Notable)
Rushville	United States	Record daily precipitation	60.5 mm (2.4 in)	52 of 100 (Notable)
Thalli	India	Record daily precipitation	67.3 mm (2.6 in)	51 of 100 (Notable)
Arantangi	India	Record daily precipitation	57.4 mm (2.3 in)	51 of 100 (Notable)
Puttur	India	Record daily precipitation	84.1 mm (3.3 in)	50 of 100 (Notable)
Quincy Mem Brg	United States	Record daily precipitation	46.2 mm (1.8 in)	50 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	57.2 mm (2.3 in)	49 of 100 (Notable)
Bungowannah Park	Australia	Record daily precipitation	55.4 mm (2.2 in)	48 of 100 (Notable)
Chandragiri	India	Record daily precipitation	58.4 mm (2.3 in)	48 of 100 (Notable)
Sidlaghatta	India	Record daily precipitation	93.7 mm (3.7 in)	47 of 100 (Notable)
Chickballapur	India	Record daily precipitation	73.7 mm (2.9 in)	47 of 100 (Notable)
Mercanam	India	Record daily precipitation	69.9 mm (2.8 in)	47 of 100 (Notable)
Kokomo 3 WSW	United States	Record daily precipitation	58.4 mm (2.3 in)	47 of 100 (Notable)
Warra Post Office	Australia	Record daily precipitation	50.8 mm (2.0 in)	46 of 100 (Notable)
Edgeroi	Australia	Record daily precipitation	71.4 mm (2.8 in)	46 of 100 (Notable)
Ernakulam	India	Record daily precipitation	95.8 mm (3.8 in)	45 of 100 (Notable)
Wallajah	India	Record daily precipitation	79.5 mm (3.1 in)	45 of 100 (Notable)
Karambakkudi	India	Record daily precipitation	81.3 mm (3.2 in)	45 of 100 (Notable)
Anderson 1 N	United States	Record daily precipitation	63.0 mm (2.5 in)	45 of 100 (Notable)
Furracabad (Avondale)	Australia	Record daily precipitation	63.5 mm (2.5 in)	44 of 100 (Notable)
Coolah (Binnia St)	Australia	Record daily precipitation	41.1 mm (1.6 in)	44 of 100 (Notable)
Praha-Klementinum	Czech Republic	Record high minimum temperature	13.2 C (55.8 F)	44 of 100 (Notable)
Rajampet	India	Record daily precipitation	57.2 mm (2.3 in)	44 of 100 (Notable)
Saidapet	India	Record daily precipitation	56.1 mm (2.2 in)	44 of 100 (Notable)
Moores Hill	United States	Record daily precipitation	66.5 mm (2.6 in)	44 of 100 (Notable)
Richmond Wtr Wks	United States	Record daily precipitation	48.8 mm (1.9 in)	44 of 100 (Notable)
Greenville Wtp	United States	Record daily precipitation	49.5 mm (1.9 in)	44 of 100 (Notable)
Sherthala	India	Record daily precipitation	96.5 mm (3.8 in)	43 of 100 (Notable)
Kottayam P.W.D	India	Record daily precipitation	88.9 mm (3.5 in)	43 of 100 (Notable)
Veedersburg	United States	Record daily precipitation	48.8 mm (1.9 in)	43 of 100 (Notable)
Burindi	Australia	Record daily precipitation	39.4 mm (1.6 in)	42 of 100 (Notable)
Erambie	Australia	Record daily precipitation	46.7 mm (1.8 in)	42 of 100 (Notable)
Manilla Post Office	Australia	Record daily precipitation	28.4 mm (1.1 in)	41 of 100 (Notable)
Hill End Post Office	Australia	Record daily precipitation	46.5 mm (1.8 in)	41 of 100 (Notable)
Burraga 2	Australia	Record daily precipitation	41.7 mm (1.6 in)	41 of 100 (Notable)
Lila Lower	Australia	Record daily precipitation	41.7 mm (1.6 in)	40 of 100 (Notable)
Wellwood	Australia	Record daily precipitation	73.2 mm (2.9 in)	40 of 100 (Notable)
Pooncarie (Mulurulu Station)	Australia	Record daily precipitation	36.8 mm (1.4 in)	39 of 100 (Notable)
Glen Innes Gasworks	Australia	Record daily precipitation	39.9 mm (1.6 in)	39 of 100 (Notable)
Millthorpe (Inala)	Australia	Record daily precipitation	45.7 mm (1.8 in)	39 of 100 (Notable)
Woodburn 3	Australia	Record daily precipitation	29.2 mm (1.1 in)	39 of 100 (Notable)
Kalahasti	India	Record daily precipitation	90.7 mm (3.6 in)	39 of 100 (Notable)
Decatur Wtp	United States	Record daily precipitation	42.9 mm (1.7 in)	39 of 100 (Notable)
Beaver City	United States	Record daily precipitation	52.8 mm (2.1 in)	39 of 100 (Notable)
Ryan	United States	Record daily precipitation	40.6 mm (1.6 in)	39 of 100 (Notable)
Lankaran	Azerbaijan	Record daily precipitation	36.0 mm (1.4 in)	38 of 100 (Notable)
Barraba (Mount Lindsay)	Australia	Record daily precipitation	71.1 mm (2.8 in)	38 of 100 (Notable)
Weetaliba (Weetalabah)	Australia	Record daily precipitation	42.2 mm (1.7 in)	38 of 100 (Notable)

Counts by Type and Timescale

789 records

Records set or tied on 15 April 1939 by type: Highest daily maximum 17, Lowest daily maximum 15, Highest daily minimum 109, Lowest daily minimum 12, Heaviest daily rainfall 626, Heaviest daily snowfall 10.

Records on 15 April 1939 by type
Record type	Records
Highest daily maximum	17
Lowest daily maximum	15
Highest daily minimum	109
Lowest daily minimum	12
Heaviest daily rainfall	626
Heaviest daily snowfall	10
Deepest snow cover	0

Records on 15 April 1939 by timescale: all-time 2, monthly 51, daily 736.

How Much Records Were Beaten By

730 broken records

Margins by which the 730 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 82.0. Ties are not counted.

Top 20 by Significance

15 April 1939

Top 20 records on 15 April 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 April 1939	Portsmouth-Sciotoville, US	monthly rain	112.3 mm (4.4 in)	40.7 mm (1.6 in)	18 years	59 of 100 (Notable)
15 April 1939	Jagalur, IN	monthly rain	140.2 mm (5.5 in)	76.4 mm (3.0 in)	17 years	58 of 100 (Notable)
15 April 1939	Rosewood, AU	all-time rain	132.1 mm (5.2 in)	24.4 mm (1.0 in)	28 years	56 of 100 (Notable)
15 April 1939	Emmaville (Strathbogie), AU	daily rain	67.8 mm (2.7 in)	48.7 mm (1.9 in)	63 years	55 of 100 (Notable)
15 April 1939	Palamner, IN	monthly rain	151.4 mm (6.0 in)	78.0 mm (3.1 in)	9 years	55 of 100 (Notable)
15 April 1939	Mendooran Post Office, AU	daily rain	61.2 mm (2.4 in)	51.3 mm (2.0 in)	30 years	54 of 100 (Notable)
15 April 1939	Arkonam, IN	daily rain	48.3 mm (1.9 in)	48.3 mm (1.9 in)	37 years	54 of 100 (Notable)
15 April 1939	Kancheepuram, IN	daily rain	64.5 mm (2.5 in)	64.5 mm (2.5 in)	37 years	54 of 100 (Notable)
15 April 1939	Madurantakam, IN	daily rain	82.0 mm (3.2 in)	82.0 mm (3.2 in)	37 years	54 of 100 (Notable)
15 April 1939	Chittoor, IN	monthly rain	124.7 mm (4.9 in)	79.2 mm (3.1 in)	0 years	53 of 100 (Notable)
15 April 1939	Venkatagiri, IN	monthly rain	109.7 mm (4.3 in)	63.2 mm (2.5 in)	0 years	53 of 100 (Notable)
15 April 1939	Mauzy, US	daily rain	60.5 mm (2.4 in)	44.5 mm (1.8 in)	30 years	53 of 100 (Notable)
15 April 1939	Chitradurga, IN	daily rain	35.1 mm (1.4 in)	27.2 mm (1.1 in)	36 years	52 of 100 (Notable)
15 April 1939	Rushville, US	daily rain	60.5 mm (2.4 in)	44.5 mm (1.8 in)	30 years	52 of 100 (Notable)
15 April 1939	Thalli, IN	daily rain	67.3 mm (2.6 in)	56.4 mm (2.2 in)	28 years	51 of 100 (Notable)
15 April 1939	Arantangi, IN	daily rain	57.4 mm (2.3 in)	49.5 mm (1.9 in)	30 years	51 of 100 (Notable)
15 April 1939	Puttur, IN	monthly rain	84.1 mm (3.3 in)	38.6 mm (1.5 in)	0 years	50 of 100 (Notable)
15 April 1939	Quincy Mem Brg, US	daily rain	46.2 mm (1.8 in)	34.3 mm (1.4 in)	28 years	50 of 100 (Notable)
15 April 1939	Hillsboro, US	daily rain	57.2 mm (2.3 in)	40.7 mm (1.6 in)	16 years	49 of 100 (Notable)
15 April 1939	Bungowannah Park, AU	monthly rain	55.4 mm (2.2 in)	15.3 mm (0.6 in)	47 years	48 of 100 (Notable)

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

1801 to 1939

Records set or tied on this calendar date in each year from 1801 to 1939. 1939 had 789 records.

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

Records on 04-15 in each year
Year	Records
1801	1
1817	1
1820	1
1844	1
1845	1
1847	1
1849	1
1853	2
1855	2
1858	1
1862	3
1865	3
1866	1
1868	1
1869	2
1873	1
1874	1
1876	1
1880	1
1882	1
1885	3
1886	1
1887	3
1889	2
1890	3
1891	2
1892	8
1893	2
1894	1
1896	2
1897	1
1898	2
1899	4
1900	9
1901	2
1902	4
1903	8
1904	39
1905	11
1906	20
1907	18
1908	15
1909	18
1910	16
1911	20
1912	24
1913	39
1914	17
1915	13
1916	15
1917	35
1918	40
1919	22
1920	50
1921	59
1922	94
1923	178
1924	172
1925	168
1926	453
1927	321
1928	631
1929	91
1930	289
1931	388
1932	150
1933	300
1934	339
1935	515
1936	439
1937	277
1938	596
1939	789
1940	581
1941	628
1942	525
1943	1,037
1944	313
1945	783
1946	245
1947	532
1948	306
1949	419
1950	568
1951	504
1952	357
1953	475
1954	896
1955	484
1956	750
1957	378
1958	458
1959	314
1960	319
1961	877
1962	733
1963	714
1964	382
1965	504
1966	464
1967	599
1968	476
1969	555
1970	841
1971	640
1972	896
1973	667
1974	385
1975	780
1976	1,566
1977	649
1978	426
1979	370
1980	1,066
1981	724
1982	955
1983	1,343
1984	612
1985	788
1986	1,140
1987	579
1988	839
1989	836
1990	837
1991	769
1992	783
1993	1,156
1994	835
1995	805
1996	1,173
1997	1,031
1998	1,752
1999	1,249
2000	1,163
2001	1,043
2002	1,866
2003	1,760
2004	761
2005	583
2006	1,637
2007	1,776
2008	1,157
2009	853
2010	804
2011	1,162
2012	1,007
2013	1,146
2014	1,721
2015	739
2016	602
2017	474
2018	1,913
2019	610
2020	1,068
2021	494
2022	1,145
2023	912
2024	1,096
2025	860
2026	1,118

Download the Data

Data for records on 1939-04-15: 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	562
20 to 40	123
40 to 60	31
60 to 80	12
80 to 100	2