Weather Records on 30 July 1939

395 weather records were set or tied worldwide on 30 July 1939. Highest significance: Kerkwerve, NL.

Key Facts for 30 July 1939

On 30 July 1939, 395 weather records were set or tied at long-record stations worldwide.
133 were record highs and 95 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 5 monthly and 388 daily.
Kerkwerve set a daily record precipitation of 42.5 mm (1.7 in) on 30 July 1939.
Across 168 earlier years (1794 to 2026) the same calendar date averaged 440 records.

Record Map

395 stations

395 station records on 30 July 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 July 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kerkwerve	Netherlands	Record daily precipitation	42.5 mm (1.7 in)	61 of 100 (Major)
Fatehpur	India	Record daily precipitation	177.8 mm (7.0 in)	52 of 100 (Notable)
Brantford	Canada	Record daily precipitation	68.3 mm (2.7 in)	51 of 100 (Notable)
Svirica	Russia	Record daily precipitation	60.7 mm (2.4 in)	51 of 100 (Notable)
Baunsi	India	Record daily precipitation	113.0 mm (4.4 in)	49 of 100 (Notable)
Berhampore	India	Record daily precipitation	100.6 mm (4.0 in)	49 of 100 (Notable)
Warren	United States	Record daily precipitation	89.7 mm (3.5 in)	48 of 100 (Notable)
Katwa	India	Record daily precipitation	131.1 mm (5.2 in)	47 of 100 (Notable)
Lindsay	Canada	Record daily precipitation	53.1 mm (2.1 in)	46 of 100 (Notable)
Jaunpur	India	Record daily precipitation	206.5 mm (8.1 in)	45 of 100 (Notable)
Louisville	United States	Record daily precipitation	88.9 mm (3.5 in)	44 of 100 (Notable)
Lawrenceville 2 S	United States	Record daily precipitation	40.6 mm (1.6 in)	44 of 100 (Notable)
Kaiserganj	India	Record daily precipitation	186.2 mm (7.3 in)	43 of 100 (Notable)
Sidney 2 N	United States	Record daily precipitation	70.6 mm (2.8 in)	43 of 100 (Notable)
Simcoe	Canada	Record daily precipitation	43.2 mm (1.7 in)	42 of 100 (Notable)
Pelee Island	Canada	Record daily precipitation	43.9 mm (1.7 in)	39 of 100 (Notable)
Port Dover	Canada	Record daily precipitation	69.1 mm (2.7 in)	38 of 100 (Notable)
Brookville	United States	Record daily precipitation	56.9 mm (2.2 in)	38 of 100 (Notable)
Silda Belpahari	India	Record daily precipitation	152.4 mm (6.0 in)	37 of 100 (Notable)
Krishnanagar	India	Record daily precipitation	94.2 mm (3.7 in)	37 of 100 (Notable)
Orenburg	Russia	Record high minimum temperature	26.9 C (80.4 F)	36 of 100 (Notable)
Ridgetown	Canada	Record daily precipitation	30.5 mm (1.2 in)	35 of 100 (Notable)
Pointe Au Pere	Canada	Record daily precipitation	39.9 mm (1.6 in)	35 of 100 (Notable)
Rajmahal	India	Record daily precipitation	88.9 mm (3.5 in)	35 of 100 (Notable)
Paraiyahat	India	Record daily precipitation	85.6 mm (3.4 in)	35 of 100 (Notable)
Cumberland	United States	Record daily precipitation	54.4 mm (2.1 in)	35 of 100 (Notable)
Selinsgrove 2 S	United States	Record daily precipitation	45.5 mm (1.8 in)	34 of 100 (Routine)
Demagiri	India	Record daily precipitation	120.7 mm (4.8 in)	33 of 100 (Routine)
Avon	United States	Record daily precipitation	45.2 mm (1.8 in)	33 of 100 (Routine)
Oberlin	United States	Record daily precipitation	47.2 mm (1.9 in)	33 of 100 (Routine)
Claysville 3 W	United States	Record daily precipitation	43.4 mm (1.7 in)	33 of 100 (Routine)
Sandvig	Denmark	Record high maximum temperature	28.5 C (83.3 F)	32 of 100 (Routine)
Weldon	United States	Record daily precipitation	47.2 mm (1.9 in)	32 of 100 (Routine)
Wilkes Barre	United States	Record daily precipitation	45.0 mm (1.8 in)	32 of 100 (Routine)
Bahraich	India	Record daily precipitation	122.7 mm (4.8 in)	31 of 100 (Routine)
Biswan	India	Record daily precipitation	111.3 mm (4.4 in)	31 of 100 (Routine)
Wallaceburg	Canada	Record daily precipitation	27.4 mm (1.1 in)	30 of 100 (Routine)
Paris	Canada	Record daily precipitation	60.2 mm (2.4 in)	30 of 100 (Routine)
Nanpara	India	Record daily precipitation	117.1 mm (4.6 in)	30 of 100 (Routine)
Lock Haven	United States	Record daily precipitation	38.9 mm (1.5 in)	29 of 100 (Routine)
Waren	Germany	Record high maximum temperature	34.4 C (93.9 F)	28 of 100 (Routine)
Hooghly	India	Record daily precipitation	87.6 mm (3.4 in)	27 of 100 (Routine)
Azimganj	India	Record daily precipitation	104.6 mm (4.1 in)	27 of 100 (Routine)
Fort Macleod	Canada	Record high maximum temperature	36.7 C (98.1 F)	26 of 100 (Routine)
Putbus	Germany	Record high maximum temperature	29.9 C (85.8 F)	25 of 100 (Routine)
Newell	United States	Record daily precipitation	46.0 mm (1.8 in)	25 of 100 (Routine)
Ridgway	United States	Record daily precipitation	32.8 mm (1.3 in)	25 of 100 (Routine)
Lucan	Canada	Record daily precipitation	40.9 mm (1.6 in)	24 of 100 (Routine)
Greifswald	Germany	Record high maximum temperature	31.1 C (88.0 F)	24 of 100 (Routine)
Highland Home	United States	Record daily precipitation	44.5 mm (1.8 in)	24 of 100 (Routine)
Bowling Green Wwtp	United States	Record daily precipitation	28.4 mm (1.1 in)	24 of 100 (Routine)
Mahespur	India	Record daily precipitation	87.9 mm (3.5 in)	23 of 100 (Routine)
Sonamukhi	India	Record daily precipitation	64.8 mm (2.6 in)	23 of 100 (Routine)
Greenville Wtp	United States	Record daily precipitation	46.7 mm (1.8 in)	23 of 100 (Routine)
Williamsport	United States	Record daily precipitation	36.6 mm (1.4 in)	23 of 100 (Routine)
Mildura Post Office	Australia	Record high minimum temperature	10.3 C (50.5 F)	22 of 100 (Routine)
Chatham 2	Canada	Record daily precipitation	38.1 mm (1.5 in)	22 of 100 (Routine)
Uluberia	India	Record daily precipitation	116.8 mm (4.6 in)	22 of 100 (Routine)
Lucknow	India	Record daily precipitation	109.0 mm (4.3 in)	21 of 100 (Routine)
Bongaon	India	Record daily precipitation	122.9 mm (4.8 in)	21 of 100 (Routine)

Counts by Type and Timescale

395 records

Records set or tied on 30 July 1939 by type: Highest daily maximum 39, Lowest daily maximum 33, Highest daily minimum 94, Lowest daily minimum 62, Heaviest daily rainfall 167.

Records on 30 July 1939 by type
Record type	Records
Highest daily maximum	39
Lowest daily maximum	33
Highest daily minimum	94
Lowest daily minimum	62
Heaviest daily rainfall	167
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 July 1939 by timescale: all-time 2, monthly 5, daily 388.

How Much Records Were Beaten By

312 broken records

Margins by which the 312 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 165.9. Ties are not counted.

Top 20 by Significance

30 July 1939

Top 20 records on 30 July 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 July 1939	Kerkwerve, NL	daily rain	42.5 mm (1.7 in)	28.7 mm (1.1 in)	50 years	61 of 100 (Major)
30 July 1939	Fatehpur, IN	daily rain	177.8 mm (7.0 in)	146.8 mm (5.8 in)	32 years	52 of 100 (Notable)
30 July 1939	Brantford, CA	daily rain	68.3 mm (2.7 in)	52.0 mm (2.0 in)	16 years	51 of 100 (Notable)
30 July 1939	Svirica, RU	monthly rain	60.7 mm (2.4 in)	21.4 mm (0.8 in)	17 years	51 of 100 (Notable)
30 July 1939	Baunsi, IN	daily rain	113.0 mm (4.4 in)	70.6 mm (2.8 in)	29 years	49 of 100 (Notable)
30 July 1939	Berhampore, IN	daily rain	100.6 mm (4.0 in)	69.1 mm (2.7 in)	29 years	49 of 100 (Notable)
30 July 1939	Warren, US	monthly rain	89.7 mm (3.5 in)	26.7 mm (1.1 in)	34 years	48 of 100 (Notable)
30 July 1939	Katwa, IN	daily rain	131.1 mm (5.2 in)	72.4 mm (2.9 in)	36 years	47 of 100 (Notable)
30 July 1939	Lindsay, CA	daily rain	53.1 mm (2.1 in)	24.9 mm (1.0 in)	49 years	46 of 100 (Notable)
30 July 1939	Jaunpur, IN	daily rain	206.5 mm (8.1 in)	165.9 mm (6.5 in)	6 years	45 of 100 (Notable)
30 July 1939	Louisville, US	daily rain	88.9 mm (3.5 in)	47.0 mm (1.9 in)	36 years	44 of 100 (Notable)
30 July 1939	Lawrenceville 2 S, US	daily rain	40.6 mm (1.6 in)	31.5 mm (1.2 in)	40 years	44 of 100 (Notable)
30 July 1939	Kaiserganj, IN	daily rain	186.2 mm (7.3 in)	131.8 mm (5.2 in)	1 year	43 of 100 (Notable)
30 July 1939	Sidney 2 N, US	daily rain	70.6 mm (2.8 in)	38.8 mm (1.5 in)	14 years	43 of 100 (Notable)
30 July 1939	Simcoe, CA	daily rain	43.2 mm (1.7 in)	35.6 mm (1.4 in)	14 years	42 of 100 (Notable)
30 July 1939	Pelee Island, CA	daily rain	43.9 mm (1.7 in)	30.9 mm (1.2 in)	38 years	39 of 100 (Notable)
30 July 1939	Port Dover, CA	daily rain	69.1 mm (2.7 in)	24.4 mm (1.0 in)	36 years	38 of 100 (Notable)
30 July 1939	Brookville, US	daily rain	56.9 mm (2.2 in)	32.0 mm (1.3 in)	33 years	38 of 100 (Notable)
30 July 1939	Silda Belpahari, IN	monthly rain	152.4 mm (6.0 in)	41.9 mm (1.6 in)	12 years	37 of 100 (Notable)
30 July 1939	Krishnanagar, IN	daily rain	94.2 mm (3.7 in)	50.3 mm (2.0 in)	28 years	37 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

1794 to 1939

Records set or tied on this calendar date in each year from 1794 to 1939. 1939 had 395 records.

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

Records on 07-30 in each year
Year	Records
1794	2
1797	1
1827	1
1828	2
1829	1
1830	1
1834	1
1837	2
1838	1
1840	1
1841	1
1843	1
1854	1
1857	1
1858	2
1860	4
1863	1
1867	1
1868	1
1869	2
1870	1
1874	2
1875	1
1876	1
1877	2
1879	1
1880	2
1885	3
1886	5
1887	6
1888	5
1889	1
1890	2
1891	1
1892	1
1893	10
1894	6
1895	2
1896	2
1897	4
1898	8
1899	2
1900	4
1901	11
1902	6
1903	25
1904	17
1905	29
1906	22
1907	11
1908	23
1909	30
1910	8
1911	54
1912	21
1913	34
1914	52
1915	26
1916	150
1917	93
1918	42
1919	19
1920	188
1921	193
1922	40
1923	428
1924	80
1925	275
1926	186
1927	109
1928	210
1929	221
1930	170
1931	432
1932	275
1933	451
1934	619
1935	340
1936	452
1937	245
1938	388
1939	395
1940	562
1941	371
1942	304
1943	397
1944	289
1945	299
1946	409
1947	394
1948	489
1949	512
1950	552
1951	322
1952	581
1953	345
1954	504
1955	787
1956	506
1957	289
1958	344
1959	391
1960	793
1961	511
1962	378
1963	308
1964	483
1965	978
1966	527
1967	282
1968	530
1969	506
1970	431
1971	2,319
1972	758
1973	434
1974	569
1975	1,048
1976	590
1977	641
1978	646
1979	761
1980	962
1981	851
1982	821
1983	904
1984	997
1985	1,029
1986	952
1987	1,084
1988	826
1989	1,227
1990	795
1991	734
1992	1,003
1993	965
1994	1,631
1995	1,207
1996	1,317
1997	933
1998	1,240
1999	1,456
2000	1,030
2001	1,400
2002	1,346
2003	1,163
2004	936
2005	788
2006	1,103
2007	1,160
2008	763
2009	1,328
2010	1,331
2011	1,003
2012	731
2013	737
2014	1,199
2015	682
2016	460
2017	464
2018	1,038
2019	486
2020	763
2021	839
2022	845
2023	683
2024	705
2025	869
2026	1,001

Download the Data

Data for records on 1939-07-30: 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 25	276
25 to 50	24
50 to 75	9
75 to 100	0
100 to 125	0
125 to 150	2
150 to 175	1