Weather Records on 30 June 1938

330 weather records were set or tied worldwide on 30 June 1938. Highest significance: Estherville 4E, US.

Key Facts for 30 June 1938

On 30 June 1938, 330 weather records were set or tied at long-record stations worldwide.
62 were record highs and 114 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 10 monthly and 315 daily.
Estherville 4E set a daily record precipitation of 77.7 mm (3.1 in) on 30 June 1938.
Across 160 earlier years (1826 to 2026) the same calendar date averaged 450 records.

Record Map

330 stations

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

Weather records on 30 June 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Estherville 4E	United States	Record daily precipitation	77.7 mm (3.1 in)	54 of 100 (Notable)
Milwaukee Wb City	United States	Record daily precipitation	55.9 mm (2.2 in)	54 of 100 (Notable)
Belthangady	India	Record daily precipitation	243.1 mm (9.6 in)	48 of 100 (Notable)
Idaho City	United States	Record daily precipitation	39.6 mm (1.6 in)	47 of 100 (Notable)
Morris W Cntrl Rsch & Outreach	United States	Record daily precipitation	57.9 mm (2.3 in)	47 of 100 (Notable)
Sheboygan	United States	Record daily precipitation	88.1 mm (3.5 in)	47 of 100 (Notable)
Burnett 3 S	United States	Record daily precipitation	117.1 mm (4.6 in)	45 of 100 (Notable)
Glasgow #2	United States	Record daily precipitation	58.9 mm (2.3 in)	44 of 100 (Notable)
Grand River Lock	United States	Record daily precipitation	101.1 mm (4.0 in)	44 of 100 (Notable)
Grenfell	Canada	Record daily precipitation	49.5 mm (1.9 in)	43 of 100 (Notable)
Aurangabad	India	Record daily precipitation	147.1 mm (5.8 in)	43 of 100 (Notable)
Sonamarg &	India	Record daily precipitation	52.6 mm (2.1 in)	43 of 100 (Notable)
Fond du Lac Wwtp	United States	Record daily precipitation	73.7 mm (2.9 in)	43 of 100 (Notable)
Mohania(Mahania)	India	Record daily precipitation	80.3 mm (3.2 in)	42 of 100 (Notable)
Arrah Obsy Sr	India	Record daily precipitation	88.4 mm (3.5 in)	37 of 100 (Notable)
Hancock Exp Farm	United States	Record daily precipitation	107.2 mm (4.2 in)	35 of 100 (Notable)
Watertown Wwtp	United States	Record daily precipitation	89.9 mm (3.5 in)	35 of 100 (Notable)
Krakmo	Norway	Record daily precipitation	35.0 mm (1.4 in)	34 of 100 (Routine)
Pine River 3 NE	United States	Record daily precipitation	58.7 mm (2.3 in)	34 of 100 (Routine)
Mora	United States	Record daily precipitation	34.8 mm (1.4 in)	32 of 100 (Routine)
Wentworth 2.5 WNW	United States	Record daily precipitation	54.4 mm (2.1 in)	32 of 100 (Routine)
Oshkosh	United States	Record daily precipitation	74.9 mm (2.9 in)	32 of 100 (Routine)
Stevens Pt	United States	Record daily precipitation	96.8 mm (3.8 in)	31 of 100 (Routine)
Lugano	Switzerland	Record daily precipitation	69.9 mm (2.8 in)	30 of 100 (Routine)
Beloit	United States	Record daily precipitation	47.8 mm (1.9 in)	30 of 100 (Routine)
Arukutty	India	Record daily precipitation	138.4 mm (5.4 in)	29 of 100 (Routine)
Medford	United States	Record daily precipitation	54.6 mm (2.1 in)	29 of 100 (Routine)
Winona	United States	Record daily precipitation	37.6 mm (1.5 in)	28 of 100 (Routine)
Port Washington	United States	Record daily precipitation	57.7 mm (2.3 in)	28 of 100 (Routine)
Elkader 6 SSW	United States	Record daily precipitation	33.8 mm (1.3 in)	27 of 100 (Routine)
Alamogordo 1	United States	Record low maximum temperature	28.9 C (84.0 F)	27 of 100 (Routine)
Flandreau	United States	Record daily precipitation	58.4 mm (2.3 in)	27 of 100 (Routine)
Manitowoc	United States	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Vasilevici	Belarus	Record high minimum temperature	20.9 C (69.6 F)	26 of 100 (Routine)
Muhammadabad	India	Record daily precipitation	73.9 mm (2.9 in)	26 of 100 (Routine)
Saluda	United States	Record low minimum temperature	10.6 C (51.1 F)	26 of 100 (Routine)
Lancaster 4 WSW	United States	Record daily precipitation	37.1 mm (1.5 in)	26 of 100 (Routine)
Neillsville 3ESE	United States	Record daily precipitation	54.4 mm (2.1 in)	26 of 100 (Routine)
Waupaca	United States	Record daily precipitation	70.6 mm (2.8 in)	26 of 100 (Routine)
Payette	United States	Record high minimum temperature	19.4 C (66.9 F)	25 of 100 (Routine)
Ft Dodge 5NNW	United States	Record daily precipitation	28.4 mm (1.1 in)	25 of 100 (Routine)
Brodhead Wwtp	United States	Record daily precipitation	39.4 mm (1.6 in)	25 of 100 (Routine)
Bassawan	India	Record daily precipitation	58.4 mm (2.3 in)	24 of 100 (Routine)
Koath	India	Record daily precipitation	64.3 mm (2.5 in)	24 of 100 (Routine)
Chittur	India	Record daily precipitation	68.8 mm (2.7 in)	24 of 100 (Routine)
Washington 2 ESE	United States	Record low minimum temperature	14.4 C (57.9 F)	24 of 100 (Routine)
Jacksonville Wb City	United States	Record low minimum temperature	18.9 C (66.0 F)	24 of 100 (Routine)
Puttur	India	Record daily precipitation	141.0 mm (5.6 in)	23 of 100 (Routine)
Kiev	Ukraine	Record high minimum temperature	20.9 C (69.6 F)	23 of 100 (Routine)
Mackay Lost Rvr Rs	United States	Record daily precipitation	36.8 mm (1.4 in)	23 of 100 (Routine)
Grand Rapids Wb City	United States	Record daily precipitation	42.9 mm (1.7 in)	23 of 100 (Routine)
Water Valley	United States	Record low minimum temperature	13.3 C (55.9 F)	23 of 100 (Routine)
Coatesville 1 SW	United States	Record low maximum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Portage Wwtp	United States	Record daily precipitation	47.8 mm (1.9 in)	23 of 100 (Routine)
Zagreb-Gric	Croatia	Record high minimum temperature	21.5 C (70.7 F)	22 of 100 (Routine)
Drobeta Turnu Severin	Romania	Record high maximum temperature	36.9 C (98.4 F)	22 of 100 (Routine)
Uman	Ukraine	Record high minimum temperature	18.9 C (66.0 F)	22 of 100 (Routine)
Marengo	United States	Record daily precipitation	31.2 mm (1.2 in)	22 of 100 (Routine)
Gage	United States	Record low maximum temperature	28.3 C (82.9 F)	22 of 100 (Routine)
Waukesha Wwtp	United States	Record daily precipitation	43.7 mm (1.7 in)	22 of 100 (Routine)

Counts by Type and Timescale

330 records

Records set or tied on 30 June 1938 by type: Highest daily maximum 18, Lowest daily maximum 52, Highest daily minimum 44, Lowest daily minimum 62, Heaviest daily rainfall 154.

Records on 30 June 1938 by type
Record type	Records
Highest daily maximum	18
Lowest daily maximum	52
Highest daily minimum	44
Lowest daily minimum	62
Heaviest daily rainfall	154
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 June 1938 by timescale: all-time 5, monthly 10, daily 315.

How Much Records Were Beaten By

280 broken records

Margins by which the 280 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 119.4. Ties are not counted.

Top 20 by Significance

30 June 1938

Top 20 records on 30 June 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 June 1938	Estherville 4E, US	daily rain	77.7 mm (3.1 in)	52.3 mm (2.1 in)	35 years	54 of 100 (Notable)
30 June 1938	Milwaukee Wb City, US	daily rain	55.9 mm (2.2 in)	42.4 mm (1.7 in)	35 years	54 of 100 (Notable)
30 June 1938	Belthangady, IN	daily rain	243.1 mm (9.6 in)	119.4 mm (4.7 in)	31 years	48 of 100 (Notable)
30 June 1938	Idaho City, US	monthly rain	39.6 mm (1.6 in)	15.5 mm (0.6 in)	22 years	47 of 100 (Notable)
30 June 1938	Morris W Cntrl Rsch & Outreach, US	daily rain	57.9 mm (2.3 in)	36.3 mm (1.4 in)	48 years	47 of 100 (Notable)
30 June 1938	Sheboygan, US	daily rain	88.1 mm (3.5 in)	48.0 mm (1.9 in)	36 years	47 of 100 (Notable)
30 June 1938	Burnett 3 S, US	all-time rain	117.1 mm (4.6 in)	27.7 mm (1.1 in)	2 years	45 of 100 (Notable)
30 June 1938	Glasgow #2, US	daily rain	58.9 mm (2.3 in)	34.8 mm (1.4 in)	9 years	44 of 100 (Notable)
30 June 1938	Grand River Lock, US	all-time rain	101.1 mm (4.0 in)	9.7 mm (0.38 in)	42 years	44 of 100 (Notable)
30 June 1938	Grenfell, CA	daily rain	49.5 mm (1.9 in)	24.4 mm (1.0 in)	46 years	43 of 100 (Notable)
30 June 1938	Aurangabad, IN	daily rain	147.1 mm (5.8 in)	109.3 mm (4.3 in)	3 years	43 of 100 (Notable)
30 June 1938	Sonamarg &, IN	daily rain	52.6 mm (2.1 in)	26.7 mm (1.1 in)	1 year	43 of 100 (Notable)
30 June 1938	Fond du Lac Wwtp, US	daily rain	73.7 mm (2.9 in)	43.7 mm (1.7 in)	8 years	43 of 100 (Notable)
30 June 1938	Mohania(Mahania), IN	daily rain	80.3 mm (3.2 in)	55.4 mm (2.2 in)	28 years	42 of 100 (Notable)
30 June 1938	Arrah Obsy Sr, IN	daily rain	88.4 mm (3.5 in)	52.8 mm (2.1 in)	32 years	37 of 100 (Notable)
30 June 1938	Hancock Exp Farm, US	all-time rain	107.2 mm (4.2 in)	5.6 mm (0.22 in)	30 years	35 of 100 (Notable)
30 June 1938	Watertown Wwtp, US	monthly rain	89.9 mm (3.5 in)	16.2 mm (0.6 in)	21 years	35 of 100 (Notable)
30 June 1938	Krakmo, NO	daily rain	35.0 mm (1.4 in)	18.9 mm (0.7 in)	0 years	34 of 100 (Routine)
30 June 1938	Pine River 3 NE, US	daily rain	58.7 mm (2.3 in)	32.3 mm (1.3 in)	20 years	34 of 100 (Routine)
30 June 1938	Mora, US	daily rain	34.8 mm (1.4 in)	23.4 mm (0.9 in)	29 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

1826 to 1938

Records set or tied on this calendar date in each year from 1826 to 1938. 1938 had 330 records.

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

Records on 06-30 in each year
Year	Records
1826	1
1832	1
1835	2
1843	2
1846	1
1848	2
1849	1
1853	1
1855	1
1857	1
1860	1
1863	1
1865	1
1869	1
1871	1
1873	1
1876	1
1879	2
1882	2
1883	3
1885	4
1886	1
1887	2
1888	2
1889	1
1890	3
1891	2
1892	1
1894	1
1895	1
1896	2
1897	6
1898	3
1899	4
1900	5
1901	9
1902	10
1903	8
1904	20
1905	23
1906	20
1907	12
1908	17
1909	39
1910	57
1911	12
1912	32
1913	99
1914	97
1915	40
1916	66
1917	39
1918	54
1919	72
1920	319
1921	121
1922	133
1923	309
1924	194
1925	113
1926	65
1927	240
1928	137
1929	213
1930	168
1931	774
1932	154
1933	571
1934	331
1935	347
1936	620
1937	458
1938	330
1939	438
1940	346
1941	341
1942	408
1943	790
1944	272
1945	671
1946	631
1947	487
1948	340
1949	403
1950	494
1951	517
1952	533
1953	404
1954	426
1955	432
1956	409
1957	592
1958	423
1959	948
1960	270
1961	351
1962	375
1963	560
1964	434
1965	240
1966	379
1967	414
1968	752
1969	459
1970	730
1971	459
1972	558
1973	623
1974	643
1975	414
1976	607
1977	662
1978	721
1979	601
1980	935
1981	838
1982	1,230
1983	752
1984	722
1985	829
1986	745
1987	1,044
1988	1,216
1989	953
1990	1,191
1991	1,129
1992	1,670
1993	711
1994	951
1995	1,354
1996	889
1997	938
1998	1,714
1999	910
2000	861
2001	778
2002	904
2003	896
2004	998
2005	1,526
2006	723
2007	736
2008	852
2009	1,052
2010	1,069
2011	1,057
2012	1,416
2013	963
2014	496
2015	1,018
2016	371
2017	642
2018	625
2019	1,042
2020	1,151
2021	1,442
2022	709
2023	531
2024	1,004
2025	858
2026	999

Download the Data

Data for records on 1938-06-30: 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 20	242
20 to 40	27
40 to 60	7
60 to 80	2
80 to 100	0
100 to 120	2