Weather Records on 30 July 1938

388 weather records were set or tied worldwide on 30 July 1938. Highest significance: Karur, IN.

Key Facts for 30 July 1938

On 30 July 1938, 388 weather records were set or tied at long-record stations worldwide.
71 were record highs and 34 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 11 monthly and 376 daily.
Karur set a daily record precipitation of 70.4 mm (2.8 in) on 30 July 1938.
Across 168 earlier years (1794 to 2026) the same calendar date averaged 441 records.

Record Map

388 stations

388 station records on 30 July 1938 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 July 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Karur	India	Record daily precipitation	70.4 mm (2.8 in)	54 of 100 (Notable)
Ghatampur	India	Record daily precipitation	141.7 mm (5.6 in)	53 of 100 (Notable)
Hovlandsdal	Norway	Record daily precipitation	88.6 mm (3.5 in)	52 of 100 (Notable)
White Sulphur Springs	United States	Record daily precipitation	57.2 mm (2.3 in)	51 of 100 (Notable)
Sohana	India	Record daily precipitation	119.4 mm (4.7 in)	50 of 100 (Notable)
Denial Bay (Nadia)	Australia	Record daily precipitation	33.8 mm (1.3 in)	48 of 100 (Notable)
Unnao	India	Record daily precipitation	203.2 mm (8.0 in)	48 of 100 (Notable)
Udayalipatti	India	Record daily precipitation	91.4 mm (3.6 in)	46 of 100 (Notable)
Channapatana	India	Record daily precipitation	83.8 mm (3.3 in)	45 of 100 (Notable)
Roldal	Norway	Record daily precipitation	46.8 mm (1.8 in)	45 of 100 (Notable)
Bangalore	India	Record daily precipitation	84.1 mm (3.3 in)	43 of 100 (Notable)
Mandya	India	Record daily precipitation	49.5 mm (1.9 in)	43 of 100 (Notable)
Mawphlang Obsy	India	Record daily precipitation	233.9 mm (9.2 in)	43 of 100 (Notable)
Sepao	India	Record daily precipitation	104.9 mm (4.1 in)	43 of 100 (Notable)
Hosur	India	Record daily precipitation	67.1 mm (2.6 in)	43 of 100 (Notable)
Mathinna (Fingal Road)	Australia	Record daily precipitation	45.7 mm (1.8 in)	42 of 100 (Notable)
St Helens Post Office	Australia	Record daily precipitation	41.1 mm (1.6 in)	42 of 100 (Notable)
Sogndal - Selseng	Norway	Record daily precipitation	38.0 mm (1.5 in)	42 of 100 (Notable)
Fatehgarh	India	Record daily precipitation	127.0 mm (5.0 in)	40 of 100 (Notable)
Deniliquin (Wilkinson St)	Australia	Record low maximum temperature	7.2 C (45.0 F)	39 of 100 (Notable)
Hardoi	India	Record daily precipitation	210.8 mm (8.3 in)	39 of 100 (Notable)
Channarayapatna	India	Record daily precipitation	41.1 mm (1.6 in)	38 of 100 (Notable)
Humboldt 3 W	United States	Record daily precipitation	82.6 mm (3.3 in)	38 of 100 (Notable)
Goulds Country Post Office	Australia	Record daily precipitation	41.7 mm (1.6 in)	37 of 100 (Notable)
Kannauj	India	Record daily precipitation	117.9 mm (4.6 in)	37 of 100 (Notable)
Soyland I Gjesdal	Norway	Record daily precipitation	77.9 mm (3.1 in)	37 of 100 (Notable)
Gobichettipalaya	India	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Suldalsvatn	Norway	Record daily precipitation	42.5 mm (1.7 in)	34 of 100 (Routine)
Webster City	United States	Record daily precipitation	45.5 mm (1.8 in)	34 of 100 (Routine)
Clarksdale	United States	Record daily precipitation	45.2 mm (1.8 in)	33 of 100 (Routine)
Chamarajnagar	India	Record daily precipitation	30.5 mm (1.2 in)	32 of 100 (Routine)
Safipur	India	Record daily precipitation	169.9 mm (6.7 in)	32 of 100 (Routine)
Sac City	United States	Record daily precipitation	67.1 mm (2.6 in)	32 of 100 (Routine)
Wollongong Post Office	Australia	Record daily precipitation	62.5 mm (2.5 in)	31 of 100 (Routine)
Malihabad	India	Record daily precipitation	110.5 mm (4.4 in)	31 of 100 (Routine)
Sidhauli	India	Record daily precipitation	99.3 mm (3.9 in)	31 of 100 (Routine)
Algona	United States	Record daily precipitation	68.6 mm (2.7 in)	31 of 100 (Routine)
Windsor Kings College	Canada	Record daily precipitation	30.5 mm (1.2 in)	30 of 100 (Routine)
Upper Shillong	India	Record daily precipitation	105.7 mm (4.2 in)	30 of 100 (Routine)
Ft Dodge 5NNW	United States	Record daily precipitation	45.5 mm (1.8 in)	30 of 100 (Routine)
Henderson	United States	Record daily precipitation	42.9 mm (1.7 in)	30 of 100 (Routine)
Haidargarh	India	Record daily precipitation	103.4 mm (4.1 in)	29 of 100 (Routine)
Shillong	India	Record daily precipitation	81.5 mm (3.2 in)	28 of 100 (Routine)
Charleston	United States	Record daily precipitation	58.9 mm (2.3 in)	28 of 100 (Routine)
Kualapuu 534	United States	Record low maximum temperature	23.3 C (73.9 F)	28 of 100 (Routine)
Farrukhabad	India	Record daily precipitation	167.6 mm (6.6 in)	27 of 100 (Routine)
Leroy 5 WSW	United States	Record high minimum temperature	21.7 C (71.1 F)	27 of 100 (Routine)
Santa Fe	United States	Record high minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Danevang 1 W	United States	Record daily precipitation	34.8 mm (1.4 in)	27 of 100 (Routine)
Fergana	Uzbekistan	Record low minimum temperature	13.2 C (55.8 F)	27 of 100 (Routine)
Bhiwani	India	Record daily precipitation	58.4 mm (2.3 in)	26 of 100 (Routine)
Rayakottah	India	Record daily precipitation	27.9 mm (1.1 in)	26 of 100 (Routine)
Hata	India	Record daily precipitation	92.7 mm (3.6 in)	26 of 100 (Routine)
Sitapur	India	Record daily precipitation	89.4 mm (3.5 in)	26 of 100 (Routine)
Britt 3E	United States	Record daily precipitation	60.2 mm (2.4 in)	26 of 100 (Routine)
Eagle Pass 3N	United States	Record daily precipitation	50.8 mm (2.0 in)	26 of 100 (Routine)
Santa Cruz	United States	Record high maximum temperature	35.0 C (95.0 F)	25 of 100 (Routine)
Rockwell City	United States	Record daily precipitation	93.5 mm (3.7 in)	25 of 100 (Routine)
Glenfield (Macquarie)	Australia	Record daily precipitation	39.1 mm (1.5 in)	24 of 100 (Routine)
Turuvekere	India	Record daily precipitation	32.5 mm (1.3 in)	24 of 100 (Routine)

Counts by Type and Timescale

388 records

Records set or tied on 30 July 1938 by type: Highest daily maximum 24, Lowest daily maximum 17, Highest daily minimum 47, Lowest daily minimum 17, Heaviest daily rainfall 283.

Records on 30 July 1938 by type
Record type	Records
Highest daily maximum	24
Lowest daily maximum	17
Highest daily minimum	47
Lowest daily minimum	17
Heaviest daily rainfall	283
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 July 1938 by timescale: all-time 1, monthly 11, daily 376.

How Much Records Were Beaten By

348 broken records

Margins by which the 348 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 169.4. Ties are not counted.

Top 20 by Significance

30 July 1938

Top 20 records on 30 July 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 July 1938	Karur, IN	daily rain	70.4 mm (2.8 in)	70.4 mm (2.8 in)	36 years	54 of 100 (Notable)
30 July 1938	Ghatampur, IN	daily rain	141.7 mm (5.6 in)	80.0 mm (3.1 in)	33 years	53 of 100 (Notable)
30 July 1938	Hovlandsdal, NO	daily rain	88.6 mm (3.5 in)	60.2 mm (2.4 in)	29 years	52 of 100 (Notable)
30 July 1938	White Sulphur Springs, US	daily rain	57.2 mm (2.3 in)	44.5 mm (1.8 in)	20 years	51 of 100 (Notable)
30 July 1938	Sohana, IN	daily rain	119.4 mm (4.7 in)	81.8 mm (3.2 in)	28 years	50 of 100 (Notable)
30 July 1938	Denial Bay (Nadia), AU	daily rain	33.8 mm (1.3 in)	24.7 mm (1.0 in)	15 years	48 of 100 (Notable)
30 July 1938	Unnao, IN	daily rain	203.2 mm (8.0 in)	102.1 mm (4.0 in)	17 years	48 of 100 (Notable)
30 July 1938	Udayalipatti, IN	daily rain	91.4 mm (3.6 in)	71.8 mm (2.8 in)	12 years	46 of 100 (Notable)
30 July 1938	Channapatana, IN	daily rain	83.8 mm (3.3 in)	62.2 mm (2.4 in)	8 years	45 of 100 (Notable)
30 July 1938	Roldal, NO	daily rain	46.8 mm (1.8 in)	25.1 mm (1.0 in)	9 years	45 of 100 (Notable)
30 July 1938	Bangalore, IN	daily rain	84.1 mm (3.3 in)	65.0 mm (2.6 in)	1 year	43 of 100 (Notable)
30 July 1938	Mandya, IN	daily rain	49.5 mm (1.9 in)	36.8 mm (1.4 in)	1 year	43 of 100 (Notable)
30 July 1938	Mawphlang Obsy, IN	daily rain	233.9 mm (9.2 in)	169.4 mm (6.7 in)	12 years	43 of 100 (Notable)
30 July 1938	Sepao, IN	daily rain	104.9 mm (4.1 in)	74.4 mm (2.9 in)	32 years	43 of 100 (Notable)
30 July 1938	Hosur, IN	daily rain	67.1 mm (2.6 in)	45.3 mm (1.8 in)	1 year	43 of 100 (Notable)
30 July 1938	Mathinna (Fingal Road), AU	daily rain	45.7 mm (1.8 in)	27.9 mm (1.1 in)	47 years	42 of 100 (Notable)
30 July 1938	St Helens Post Office, AU	daily rain	41.1 mm (1.6 in)	17.0 mm (0.7 in)	47 years	42 of 100 (Notable)
30 July 1938	Sogndal - Selseng, NO	daily rain	38.0 mm (1.5 in)	17.0 mm (0.7 in)	42 years	42 of 100 (Notable)
30 July 1938	Fatehgarh, IN	daily rain	127.0 mm (5.0 in)	71.1 mm (2.8 in)	24 years	40 of 100 (Notable)
30 July 1938	Deniliquin (Wilkinson St), AU	daily low max	7.2 C (45.0 F)	2.8 C (5.0 F)	67 years	39 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 1938

Records set or tied on this calendar date in each year from 1794 to 1938. 1938 had 388 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 1938-07-30: 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	297
25 to 50	36
50 to 75	10
75 to 100	3
100 to 125	1
125 to 150	0
150 to 175	1