Weather Records on 30 June 1930

168 weather records were set or tied worldwide on 30 June 1930. Highest significance: Caruthersville, US.

Key Facts for 30 June 1930

On 30 June 1930, 168 weather records were set or tied at long-record stations worldwide.
101 were record highs and 12 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 6 monthly and 161 daily.
Caruthersville set a monthly record daily precipitation of 102.1 mm (4.0 in) on 30 June 1930.
Across 160 earlier years (1826 to 2026) the same calendar date averaged 451 records.

Record Map

168 stations

168 station records on 30 June 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 June 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Caruthersville	United States	Record daily precipitation	102.1 mm (4.0 in)	47 of 100 (Notable)
Mackinaw City 2	United States	Record daily precipitation	75.4 mm (3.0 in)	46 of 100 (Notable)
St Ignace	United States	Record daily precipitation	48.8 mm (1.9 in)	39 of 100 (Notable)
Macon	United States	Record daily precipitation	69.9 mm (2.8 in)	38 of 100 (Notable)
Adelaide (Morphett Vale)	Australia	Record daily precipitation	31.8 mm (1.3 in)	33 of 100 (Routine)
Pointe Au Pere	Canada	Record high maximum temperature	29.4 C (84.9 F)	32 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record high minimum temperature	15.0 C (59.0 F)	29 of 100 (Routine)
Cheboygan	United States	Record daily precipitation	26.2 mm (1.0 in)	29 of 100 (Routine)
Grant City	United States	Record daily precipitation	56.4 mm (2.2 in)	29 of 100 (Routine)
Eumundi - Crescent Rd	Australia	Record daily precipitation	55.9 mm (2.2 in)	27 of 100 (Routine)
Hannibal 1 N	United States	Record daily precipitation	37.6 mm (1.5 in)	27 of 100 (Routine)
Tizi Ouzou	Algeria	Record low maximum temperature	23.0 C (73.4 F)	25 of 100 (Routine)
Keokuk L&D 19	United States	Record daily precipitation	30.5 mm (1.2 in)	24 of 100 (Routine)
Toulby	Australia	Record daily precipitation	31.8 mm (1.3 in)	22 of 100 (Routine)
Georgetown	Canada	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Karratha Station	Australia	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Brome	Canada	Record high maximum temperature	30.0 C (86.0 F)	19 of 100 (Routine)
Pana	United States	Record daily precipitation	20.6 mm (0.8 in)	19 of 100 (Routine)
Kirksville	United States	Record daily precipitation	33.8 mm (1.3 in)	19 of 100 (Routine)
Mount Florance	Australia	Record daily precipitation	8.1 mm (0.32 in)	18 of 100 (Routine)
Adelaide West Terrace	Australia	Record high maximum temperature	20.8 C (69.4 F)	18 of 100 (Routine)
Abitibi Post	Canada	Record daily precipitation	24.1 mm (0.9 in)	18 of 100 (Routine)
Feodosiia	Ukraine	Record high minimum temperature	24.1 C (75.4 F)	18 of 100 (Routine)
Morrison	United States	Record daily precipitation	19.3 mm (0.8 in)	18 of 100 (Routine)
Warsaw	United States	Record daily precipitation	35.1 mm (1.4 in)	18 of 100 (Routine)
Gloversville	United States	Record high maximum temperature	33.9 C (93.0 F)	18 of 100 (Routine)
Mardie	Australia	Record daily precipitation	2.0 mm (0.08 in)	17 of 100 (Routine)
Melbourne Regional Office	Australia	Record high maximum temperature	18.2 C (64.8 F)	17 of 100 (Routine)
Graz	Austria	Record high minimum temperature	17.8 C (64.0 F)	17 of 100 (Routine)
Greenville	United States	Record daily precipitation	42.4 mm (1.7 in)	17 of 100 (Routine)
Donaldsonville 4 SW	United States	Record high maximum temperature	37.8 C (100.0 F)	17 of 100 (Routine)
Grayling	United States	Record daily precipitation	19.1 mm (0.8 in)	17 of 100 (Routine)
Mc Minnville	United States	Record high minimum temperature	22.2 C (72.0 F)	17 of 100 (Routine)
Roswell Muni AP	United States	Record high minimum temperature	21.1 C (70.0 F)	17 of 100 (Routine)
Murwillumbah Post Office	Australia	Record daily precipitation	53.1 mm (2.1 in)	16 of 100 (Routine)
Bowraville Recreation Club	Australia	Record daily precipitation	47.0 mm (1.9 in)	16 of 100 (Routine)
Southampton	Canada	Record high minimum temperature	18.3 C (64.9 F)	16 of 100 (Routine)
Steffenville	United States	Record daily precipitation	21.6 mm (0.9 in)	16 of 100 (Routine)
Bethlehem	United States	Record high maximum temperature	29.4 C (84.9 F)	16 of 100 (Routine)
Derry 4 SW	United States	Record high minimum temperature	22.8 C (73.0 F)	16 of 100 (Routine)
Robertsburg	United States	Record high maximum temperature	36.7 C (98.1 F)	16 of 100 (Routine)
Adelaide (Brighton)	Australia	Record daily precipitation	24.1 mm (0.9 in)	15 of 100 (Routine)
Richmond	United States	Record high minimum temperature	23.3 C (73.9 F)	15 of 100 (Routine)
Clinton Forestry HQ	United States	Record high maximum temperature	37.8 C (100.0 F)	15 of 100 (Routine)
Ogdensburg 4 NE	United States	Record high maximum temperature	32.2 C (90.0 F)	15 of 100 (Routine)
Salisbury	United States	Record high maximum temperature	31.1 C (88.0 F)	15 of 100 (Routine)
Hallettsville 2 N	United States	Record high maximum temperature	40.0 C (104.0 F)	15 of 100 (Routine)
Lewisburg 3 N	United States	Record high maximum temperature	33.9 C (93.0 F)	15 of 100 (Routine)
Moorefield 1 SSE	United States	Record high maximum temperature	36.7 C (98.1 F)	15 of 100 (Routine)
Quatsino	Canada	Record low maximum temperature	13.9 C (57.0 F)	14 of 100 (Routine)
Clontarf	Canada	Record high minimum temperature	17.8 C (64.0 F)	14 of 100 (Routine)
Jonesboro 3 SSE	United States	Record high minimum temperature	25.0 C (77.0 F)	14 of 100 (Routine)
Magnolia	United States	Record high maximum temperature	38.9 C (102.0 F)	14 of 100 (Routine)
Huntington 1	United States	Record high maximum temperature	37.2 C (99.0 F)	14 of 100 (Routine)
Romney 1 SW	United States	Record high maximum temperature	36.7 C (98.1 F)	14 of 100 (Routine)
La Crosse River	United States	Record daily precipitation	21.1 mm (0.8 in)	14 of 100 (Routine)
Degilbo Rail STN	Australia	Record daily precipitation	36.8 mm (1.4 in)	13 of 100 (Routine)
Rosedale Post Office	Australia	Record daily precipitation	47.0 mm (1.9 in)	13 of 100 (Routine)
Mt Pleasant 1 SW	United States	Record daily precipitation	59.2 mm (2.3 in)	13 of 100 (Routine)
Middlesboro Fire Dept	United States	Record high maximum temperature	34.4 C (93.9 F)	13 of 100 (Routine)

Counts by Type and Timescale

168 records

Records set or tied on 30 June 1930 by type: Highest daily maximum 62, Lowest daily maximum 5, Highest daily minimum 39, Lowest daily minimum 7, Heaviest daily rainfall 55.

Records on 30 June 1930 by type
Record type	Records
Highest daily maximum	62
Lowest daily maximum	5
Highest daily minimum	39
Lowest daily minimum	7
Heaviest daily rainfall	55
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 June 1930 by timescale: all-time 1, monthly 6, daily 161.

How Much Records Were Beaten By

119 broken records

Margins by which the 119 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 50.0. Ties are not counted.

Top 20 by Significance

30 June 1930

Top 20 records on 30 June 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 June 1930	Caruthersville, US	monthly rain	102.1 mm (4.0 in)	32.2 mm (1.3 in)	30 years	47 of 100 (Notable)
30 June 1930	Mackinaw City 2, US	daily rain	75.4 mm (3.0 in)	50.0 mm (2.0 in)	12 years	46 of 100 (Notable)
30 June 1930	St Ignace, US	daily rain	48.8 mm (1.9 in)	43.7 mm (1.7 in)	5 years	39 of 100 (Notable)
30 June 1930	Macon, US	daily rain	69.9 mm (2.8 in)	37.4 mm (1.5 in)	24 years	38 of 100 (Notable)
30 June 1930	Adelaide (Morphett Vale), AU	daily rain	31.8 mm (1.3 in)	15.3 mm (0.6 in)	25 years	33 of 100 (Routine)
30 June 1930	Pointe Au Pere, CA	monthly high max	29.4 C (84.9 F)	1.1 C (2.0 F)	50 years	32 of 100 (Routine)
30 June 1930	Dublin Phoenix Park, IE	daily high min	15.0 C (59.0 F)	2.1 C (3.8 F)	53 years	29 of 100 (Routine)
30 June 1930	Cheboygan, US	daily rain	26.2 mm (1.0 in)	21.1 mm (0.8 in)	12 years	29 of 100 (Routine)
30 June 1930	Grant City, US	daily rain	56.4 mm (2.2 in)	30.5 mm (1.2 in)	24 years	29 of 100 (Routine)
30 June 1930	Eumundi - Crescent Rd, AU	daily rain	55.9 mm (2.2 in)	25.4 mm (1.0 in)	20 years	27 of 100 (Routine)
30 June 1930	Hannibal 1 N, US	daily rain	37.6 mm (1.5 in)	15.8 mm (0.6 in)	34 years	27 of 100 (Routine)
30 June 1930	Tizi Ouzou, DZ	daily low max	23.0 C (73.4 F)	6.0 C (10.8 F)	30 years	25 of 100 (Routine)
30 June 1930	Keokuk L&D 19, US	daily rain	30.5 mm (1.2 in)	15.8 mm (0.6 in)	35 years	24 of 100 (Routine)
30 June 1930	Toulby, AU	daily rain	31.8 mm (1.3 in)	21.6 mm (0.9 in)	8 years	22 of 100 (Routine)
30 June 1930	Georgetown, CA	daily rain	18.8 mm (0.7 in)	6.6 mm (0.26 in)	47 years	20 of 100 (Routine)
30 June 1930	Karratha Station, AU	monthly rain	10.4 mm (0.4 in)	8.9 mm (0.35 in)	0 years	20 of 100 (Routine)
30 June 1930	Brome, CA	daily high max	30.0 C (86.0 F)	1.7 C (3.1 F)	36 years	19 of 100 (Routine)
30 June 1930	Pana, US	daily rain	20.6 mm (0.8 in)	12.5 mm (0.5 in)	24 years	19 of 100 (Routine)
30 June 1930	Kirksville, US	daily rain	33.8 mm (1.3 in)	16.0 mm (0.6 in)	24 years	19 of 100 (Routine)
30 June 1930	Mount Florance, AU	daily rain	8.1 mm (0.32 in)	8.1 mm (0.32 in)	37 years	18 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 1930

Records set or tied on this calendar date in each year from 1826 to 1930. 1930 had 168 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 1930-06-30: 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).

Histogram of margins by which records were beaten on 30 June 1930
Margin	Records
0 to 10	97
10 to 20	11
20 to 30	6
30 to 40	3
40 to 50	2