Weather Records on 7 August 1939

561 weather records were set or tied worldwide on 7 August 1939. Highest significance: St John's, CA.

Key Facts for 7 August 1939

On 7 August 1939, 561 weather records were set or tied at long-record stations worldwide.
55 were record highs and 195 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 19 monthly and 539 daily.
St John's set a daily record precipitation of 57.7 mm (2.3 in) on 7 August 1939.
Across 163 earlier years (1808 to 2026) the same calendar date averaged 470 records.

Record Map

561 stations

561 station records on 7 August 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 7 August 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
St John's	Canada	Record daily precipitation	57.7 mm (2.3 in)	57 of 100 (Notable)
Karambakkudi	India	Record daily precipitation	152.4 mm (6.0 in)	57 of 100 (Notable)
Rowena (Waroonga)	Australia	Record daily precipitation	55.9 mm (2.2 in)	55 of 100 (Notable)
Uppiliyapuram	India	Record daily precipitation	83.3 mm (3.3 in)	50 of 100 (Notable)
Manapparai	India	Record daily precipitation	158.0 mm (6.2 in)	50 of 100 (Notable)
Kodumudi	India	Record daily precipitation	86.4 mm (3.4 in)	49 of 100 (Notable)
Pattukkottai	India	Record daily precipitation	92.7 mm (3.6 in)	49 of 100 (Notable)
Pailani	India	Record daily precipitation	147.8 mm (5.8 in)	49 of 100 (Notable)
Vallam	India	Record daily precipitation	104.4 mm (4.1 in)	47 of 100 (Notable)
Annavasal	India	Record daily precipitation	94.7 mm (3.7 in)	46 of 100 (Notable)
Turaiyur	India	Record daily precipitation	70.4 mm (2.8 in)	45 of 100 (Notable)
Perumpavur	India	Record daily precipitation	168.9 mm (6.6 in)	44 of 100 (Notable)
Musiri	India	Record daily precipitation	72.4 mm (2.9 in)	44 of 100 (Notable)
Kamasin	India	Record daily precipitation	143.0 mm (5.6 in)	44 of 100 (Notable)
Paramathi	India	Record daily precipitation	82.6 mm (3.3 in)	43 of 100 (Notable)
Marungapuri	India	Record daily precipitation	94.5 mm (3.7 in)	43 of 100 (Notable)
Ponnamaravathi	India	Record daily precipitation	82.6 mm (3.3 in)	43 of 100 (Notable)
Beberu	India	Record daily precipitation	148.3 mm (5.8 in)	43 of 100 (Notable)
Karwi	India	Record daily precipitation	168.1 mm (6.6 in)	43 of 100 (Notable)
Pana	United States	Record daily precipitation	76.2 mm (3.0 in)	43 of 100 (Notable)
Puckapunyal	Australia	Record daily precipitation	37.1 mm (1.5 in)	42 of 100 (Notable)
Muvattupuzha	India	Record daily precipitation	151.9 mm (6.0 in)	42 of 100 (Notable)
Tiruppur	India	Record daily precipitation	47.0 mm (1.9 in)	42 of 100 (Notable)
Kattumavadi	India	Record daily precipitation	78.0 mm (3.1 in)	42 of 100 (Notable)
Malayattur	India	Record daily precipitation	142.7 mm (5.6 in)	41 of 100 (Notable)
Omalur	India	Record daily precipitation	84.6 mm (3.3 in)	40 of 100 (Notable)
Kulithalai	India	Record daily precipitation	162.6 mm (6.4 in)	40 of 100 (Notable)
Sendamangalam	India	Record daily precipitation	177.8 mm (7.0 in)	39 of 100 (Notable)
Manjhanpur	India	Record daily precipitation	109.7 mm (4.3 in)	38 of 100 (Notable)
Minonk	United States	Record daily precipitation	71.6 mm (2.8 in)	38 of 100 (Notable)
Heathcote	Australia	Record daily precipitation	29.7 mm (1.2 in)	37 of 100 (Notable)
Mannargudi	India	Record daily precipitation	96.5 mm (3.8 in)	37 of 100 (Notable)
Pudukkottai	India	Record daily precipitation	119.6 mm (4.7 in)	37 of 100 (Notable)
Palladam	India	Record daily precipitation	33.5 mm (1.3 in)	36 of 100 (Notable)
Mahoba	India	Record daily precipitation	90.7 mm (3.6 in)	36 of 100 (Notable)
Mt Vernon	United States	Record daily precipitation	47.8 mm (1.9 in)	36 of 100 (Notable)
Toolleen (Ryan)	Australia	Record daily precipitation	31.0 mm (1.2 in)	35 of 100 (Notable)
Broadford	Australia	Record daily precipitation	26.2 mm (1.0 in)	35 of 100 (Notable)
Salem	India	Record daily precipitation	176.3 mm (6.9 in)	35 of 100 (Notable)
Namakkal	India	Record daily precipitation	81.8 mm (3.2 in)	34 of 100 (Routine)
Chettikulam	India	Record daily precipitation	81.3 mm (3.2 in)	34 of 100 (Routine)
Adanakottai	India	Record daily precipitation	129.5 mm (5.1 in)	34 of 100 (Routine)
Longmont 2 ESE	United States	Record low maximum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Thathaiengarpet	India	Record daily precipitation	59.2 mm (2.3 in)	33 of 100 (Routine)
Iluppur	India	Record daily precipitation	80.0 mm (3.1 in)	33 of 100 (Routine)
Muthupet	India	Record daily precipitation	89.9 mm (3.5 in)	32 of 100 (Routine)
Karur	India	Record daily precipitation	51.8 mm (2.0 in)	32 of 100 (Routine)
Khannah	India	Record daily precipitation	109.2 mm (4.3 in)	32 of 100 (Routine)
Jalpaiguri	India	Record daily precipitation	117.3 mm (4.6 in)	32 of 100 (Routine)
Beenak	Australia	Record daily precipitation	31.8 mm (1.3 in)	31 of 100 (Routine)
Pyalong West (Cavan Park)	Australia	Record daily precipitation	30.2 mm (1.2 in)	31 of 100 (Routine)
Kangayam	India	Record daily precipitation	32.0 mm (1.3 in)	31 of 100 (Routine)
Thammampatty	India	Record daily precipitation	79.0 mm (3.1 in)	31 of 100 (Routine)
Sankari	India	Record daily precipitation	109.2 mm (4.3 in)	31 of 100 (Routine)
Tiskilwa 2 SE	United States	Record daily precipitation	54.9 mm (2.2 in)	31 of 100 (Routine)
Morekulam	India	Record daily precipitation	33.8 mm (1.3 in)	30 of 100 (Routine)
Maudeha	India	Record daily precipitation	101.6 mm (4.0 in)	30 of 100 (Routine)
Kunda	India	Record daily precipitation	97.3 mm (3.8 in)	30 of 100 (Routine)
Boulder	United States	Record low maximum temperature	12.2 C (54.0 F)	30 of 100 (Routine)
Basin	United States	Record low maximum temperature	20.6 C (69.1 F)	30 of 100 (Routine)

Counts by Type and Timescale

561 records

Records set or tied on 7 August 1939 by type: Highest daily maximum 18, Lowest daily maximum 97, Highest daily minimum 37, Lowest daily minimum 98, Heaviest daily rainfall 311.

Records on 7 August 1939 by type
Record type	Records
Highest daily maximum	18
Lowest daily maximum	97
Highest daily minimum	37
Lowest daily minimum	98
Heaviest daily rainfall	311
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 7 August 1939 by timescale: all-time 3, monthly 19, daily 539.

How Much Records Were Beaten By

480 broken records

Margins by which the 480 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 108.2. Ties are not counted.

Top 20 by Significance

7 August 1939

Top 20 records on 7 August 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 August 1939	St John's, CA	daily rain	57.7 mm (2.3 in)	37.4 mm (1.5 in)	59 years	57 of 100 (Notable)
7 August 1939	Karambakkudi, IN	monthly rain	152.4 mm (6.0 in)	77.7 mm (3.1 in)	14 years	57 of 100 (Notable)
7 August 1939	Rowena (Waroonga), AU	daily rain	55.9 mm (2.2 in)	52.9 mm (2.1 in)	39 years	55 of 100 (Notable)
7 August 1939	Uppiliyapuram, IN	daily rain	83.3 mm (3.3 in)	63.0 mm (2.5 in)	32 years	50 of 100 (Notable)
7 August 1939	Manapparai, IN	monthly rain	158.0 mm (6.2 in)	51.3 mm (2.0 in)	35 years	50 of 100 (Notable)
7 August 1939	Kodumudi, IN	daily rain	86.4 mm (3.4 in)	60.7 mm (2.4 in)	21 years	49 of 100 (Notable)
7 August 1939	Pattukkottai, IN	daily rain	92.7 mm (3.6 in)	66.0 mm (2.6 in)	21 years	49 of 100 (Notable)
7 August 1939	Pailani, IN	daily rain	147.8 mm (5.8 in)	108.2 mm (4.3 in)	20 years	49 of 100 (Notable)
7 August 1939	Vallam, IN	daily rain	104.4 mm (4.1 in)	73.9 mm (2.9 in)	24 years	47 of 100 (Notable)
7 August 1939	Annavasal, IN	daily rain	94.7 mm (3.7 in)	59.1 mm (2.3 in)	32 years	46 of 100 (Notable)
7 August 1939	Turaiyur, IN	daily rain	70.4 mm (2.8 in)	56.4 mm (2.2 in)	21 years	45 of 100 (Notable)
7 August 1939	Perumpavur, IN	daily rain	168.9 mm (6.6 in)	76.2 mm (3.0 in)	32 years	44 of 100 (Notable)
7 August 1939	Musiri, IN	daily rain	72.4 mm (2.9 in)	63.0 mm (2.5 in)	17 years	44 of 100 (Notable)
7 August 1939	Kamasin, IN	daily rain	143.0 mm (5.6 in)	103.6 mm (4.1 in)	4 years	44 of 100 (Notable)
7 August 1939	Paramathi, IN	daily rain	82.6 mm (3.3 in)	61.0 mm (2.4 in)	0 years	43 of 100 (Notable)
7 August 1939	Marungapuri, IN	daily rain	94.5 mm (3.7 in)	77.0 mm (3.0 in)	1 year	43 of 100 (Notable)
7 August 1939	Ponnamaravathi, IN	daily rain	82.6 mm (3.3 in)	52.6 mm (2.1 in)	29 years	43 of 100 (Notable)
7 August 1939	Beberu, IN	daily rain	148.3 mm (5.8 in)	82.5 mm (3.2 in)	28 years	43 of 100 (Notable)
7 August 1939	Karwi, IN	daily rain	168.1 mm (6.6 in)	104.1 mm (4.1 in)	1 year	43 of 100 (Notable)
7 August 1939	Pana, US	daily rain	76.2 mm (3.0 in)	44.4 mm (1.7 in)	32 years	43 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

1808 to 1939

Records set or tied on this calendar date in each year from 1808 to 1939. 1939 had 561 records.

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

Records on 08-07 in each year
Year	Records
1808	1
1812	1
1815	1
1816	1
1817	1
1833	2
1844	1
1845	1
1848	1
1857	3
1858	1
1859	2
1861	1
1866	1
1868	1
1869	3
1870	2
1875	1
1876	5
1879	1
1880	2
1882	1
1883	1
1884	2
1886	1
1887	2
1888	5
1889	2
1891	3
1892	3
1893	1
1894	1
1895	7
1896	2
1897	2
1898	4
1899	1
1900	6
1901	3
1902	5
1903	17
1904	8
1905	8
1906	9
1907	10
1908	13
1909	11
1910	1
1911	36
1912	31
1913	39
1914	24
1915	40
1916	50
1917	21
1918	108
1919	36
1920	36
1921	55
1922	61
1923	101
1924	128
1925	81
1926	115
1927	109
1928	188
1929	181
1930	486
1931	357
1932	249
1933	310
1934	608
1935	507
1936	286
1937	446
1938	568
1939	561
1940	271
1941	305
1942	340
1943	601
1944	332
1945	882
1946	500
1947	461
1948	756
1949	587
1950	541
1951	562
1952	556
1953	378
1954	589
1955	536
1956	321
1957	868
1958	571
1959	356
1960	344
1961	356
1962	718
1963	522
1964	446
1965	552
1966	400
1967	701
1968	600
1969	523
1970	652
1971	969
1972	1,172
1973	568
1974	746
1975	1,177
1976	1,168
1977	617
1978	1,210
1979	559
1980	871
1981	855
1982	727
1983	1,207
1984	840
1985	1,088
1986	544
1987	1,146
1988	897
1989	1,472
1990	1,625
1991	1,217
1992	1,236
1993	1,040
1994	1,262
1995	1,521
1996	1,107
1997	1,460
1998	1,183
1999	950
2000	871
2001	1,386
2002	907
2003	1,244
2004	1,400
2005	882
2006	923
2007	1,309
2008	918
2009	1,121
2010	1,098
2011	1,282
2012	688
2013	665
2014	501
2015	1,027
2016	505
2017	954
2018	636
2019	609
2020	605
2021	397
2022	880
2023	1,221
2024	835
2025	733
2026	1,047

Download the Data

Data for records on 1939-08-07: 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	409
20 to 40	36
40 to 60	18
60 to 80	12
80 to 100	2
100 to 120	3