Weather Records on 18 July 1930

462 weather records were set or tied worldwide on 18 July 1930. Highest significance: Chemnitz, DE.

Key Facts for 18 July 1930

On 18 July 1930, 462 weather records were set or tied at long-record stations worldwide.
309 were record highs and 42 were record lows, counting maximum and minimum temperature.
By timescale, 14 were all-time records, 4 monthly and 444 daily.
Chemnitz set a daily record precipitation of 72.0 mm (2.8 in) on 18 July 1930.
Across 156 earlier years (1793 to 2026) the same calendar date averaged 462 records.

Record Map

462 stations

462 station records on 18 July 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 July 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chemnitz	Germany	Record daily precipitation	72.0 mm (2.8 in)	51 of 100 (Notable)
Altentreptow	Germany	Record daily precipitation	66.6 mm (2.6 in)	46 of 100 (Notable)
Wittenberg	Germany	Record daily precipitation	40.2 mm (1.6 in)	44 of 100 (Notable)
Lichtentanne	Germany	Record daily precipitation	44.2 mm (1.7 in)	39 of 100 (Notable)
Greiz-Dolau	Germany	Record daily precipitation	32.7 mm (1.3 in)	35 of 100 (Notable)
Chariton 1 E	United States	Record high minimum temperature	26.7 C (80.1 F)	34 of 100 (Routine)
Bad Lauchstadt	Germany	Record daily precipitation	30.4 mm (1.2 in)	33 of 100 (Routine)
Denison	United States	Record high maximum temperature	41.7 C (107.1 F)	32 of 100 (Routine)
Leipzig-Schkeuditz	Germany	Record daily precipitation	29.5 mm (1.2 in)	30 of 100 (Routine)
Nossen	Germany	Record daily precipitation	50.6 mm (2.0 in)	30 of 100 (Routine)
Blair	United States	Record high minimum temperature	26.7 C (80.1 F)	30 of 100 (Routine)
Fichtelberg	Germany	Record daily precipitation	42.7 mm (1.7 in)	29 of 100 (Routine)
Franklin 3 NW	United States	Record low minimum temperature	18.9 C (66.0 F)	29 of 100 (Routine)
David City 4E	United States	Record high maximum temperature	42.2 C (108.0 F)	29 of 100 (Routine)
Speers Ferry	United States	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Teterow	Germany	Record daily precipitation	40.0 mm (1.6 in)	28 of 100 (Routine)
Lexington	United States	Record high maximum temperature	39.4 C (102.9 F)	28 of 100 (Routine)
Taralga Post Office	Australia	Record daily precipitation	29.5 mm (1.2 in)	27 of 100 (Routine)
Pincher Creek Town	Canada	Record daily precipitation	38.1 mm (1.5 in)	27 of 100 (Routine)
Hammond	United States	Record low minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Blackville 3 W	United States	Record daily precipitation	45.5 mm (1.8 in)	26 of 100 (Routine)
Syracuse	United States	Record high maximum temperature	43.3 C (109.9 F)	25 of 100 (Routine)
Berlin-Dahlem (Lfag)	Germany	Record daily precipitation	60.7 mm (2.4 in)	24 of 100 (Routine)
Chariton 1 E	United States	Record high maximum temperature	41.1 C (106.0 F)	24 of 100 (Routine)
Knoxville	United States	Record high maximum temperature	40.0 C (104.0 F)	24 of 100 (Routine)
Dubuque River	United States	Record high minimum temperature	24.4 C (75.9 F)	24 of 100 (Routine)
Doberlug-Kirchhain	Germany	Record daily precipitation	54.0 mm (2.1 in)	23 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record daily precipitation	42.2 mm (1.7 in)	23 of 100 (Routine)
Ueckermunde	Germany	Record daily precipitation	41.0 mm (1.6 in)	23 of 100 (Routine)
Marshallville 6 S	United States	Record low maximum temperature	26.1 C (79.0 F)	23 of 100 (Routine)
Atlantic 1 NE	United States	Record high maximum temperature	40.6 C (105.1 F)	23 of 100 (Routine)
Audubon	United States	Record high maximum temperature	40.0 C (104.0 F)	23 of 100 (Routine)
Crete 4ESE	United States	Record high maximum temperature	42.2 C (108.0 F)	23 of 100 (Routine)
Concordia ASOS	United States	Record high maximum temperature	41.1 C (106.0 F)	23 of 100 (Routine)
Weissenfels	Germany	Record daily precipitation	43.1 mm (1.7 in)	21 of 100 (Routine)
Indianola 1SW	United States	Record high maximum temperature	40.0 C (104.0 F)	21 of 100 (Routine)
Thurman	United States	Record high maximum temperature	40.6 C (105.1 F)	21 of 100 (Routine)
Emporia 1 S	United States	Record high maximum temperature	42.8 C (109.0 F)	21 of 100 (Routine)
Ashland #2	United States	Record high maximum temperature	42.8 C (109.0 F)	21 of 100 (Routine)
Lampasas	United States	Record low minimum temperature	16.7 C (62.1 F)	21 of 100 (Routine)
Moorefield 1 SSE	United States	Record high maximum temperature	39.4 C (102.9 F)	21 of 100 (Routine)
Ohringen	Germany	Record daily precipitation	20.2 mm (0.8 in)	20 of 100 (Routine)
Queanbeyan (Mount Campbell)	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Burindi	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Boggabri (Penryn)	Australia	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Adaminaby Alpine Tourist Park	Australia	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Freeling Railway	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Lyndoch	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Ellerston (Hunters Vale)	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Freiburg	Germany	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Biskra	Algeria	Record high minimum temperature	33.0 C (91.4 F)	20 of 100 (Routine)
Ellerston	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Afton	United States	Record high maximum temperature	41.1 C (106.0 F)	20 of 100 (Routine)
Ames 3 SW	United States	Record high minimum temperature	25.0 C (77.0 F)	20 of 100 (Routine)
Corning	United States	Record high maximum temperature	39.4 C (102.9 F)	20 of 100 (Routine)
Winterset 4N	United States	Record high maximum temperature	40.0 C (104.0 F)	20 of 100 (Routine)
Conception	United States	Record high maximum temperature	40.0 C (104.0 F)	20 of 100 (Routine)
Trenton	United States	Record high maximum temperature	40.0 C (104.0 F)	20 of 100 (Routine)
Columbus 3 NE	United States	Record high maximum temperature	42.2 C (108.0 F)	20 of 100 (Routine)

Counts by Type and Timescale

462 records

Records set or tied on 18 July 1930 by type: Highest daily maximum 251, Lowest daily maximum 9, Highest daily minimum 58, Lowest daily minimum 33, Heaviest daily rainfall 111.

Records on 18 July 1930 by type
Record type	Records
Highest daily maximum	251
Lowest daily maximum	9
Highest daily minimum	58
Lowest daily minimum	33
Heaviest daily rainfall	111
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 July 1930 by timescale: all-time 14, monthly 4, daily 444.

How Much Records Were Beaten By

350 broken records

Margins by which the 350 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 54.6. Ties are not counted.

Top 20 by Significance

18 July 1930

Top 20 records on 18 July 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 July 1930	Chemnitz, DE	daily rain	72.0 mm (2.8 in)	54.6 mm (2.1 in)	24 years	51 of 100 (Notable)
18 July 1930	Altentreptow, DE	daily rain	66.6 mm (2.6 in)	30.5 mm (1.2 in)	8 years	46 of 100 (Notable)
18 July 1930	Wittenberg, DE	daily rain	40.2 mm (1.6 in)	24.0 mm (0.9 in)	28 years	44 of 100 (Notable)
18 July 1930	Lichtentanne, DE	daily rain	44.2 mm (1.7 in)	22.1 mm (0.9 in)	20 years	39 of 100 (Notable)
18 July 1930	Greiz-Dolau, DE	daily rain	32.7 mm (1.3 in)	21.1 mm (0.8 in)	24 years	35 of 100 (Notable)
18 July 1930	Chariton 1 E, US	all-time high min	26.7 C (80.1 F)	0.6 C (1.1 F)	34 years	34 of 100 (Routine)
18 July 1930	Bad Lauchstadt, DE	daily rain	30.4 mm (1.2 in)	18.1 mm (0.7 in)	20 years	33 of 100 (Routine)
18 July 1930	Denison, US	all-time high max	41.7 C (107.1 F)	0.6 C (1.1 F)	28 years	32 of 100 (Routine)
18 July 1930	Leipzig-Schkeuditz, DE	daily rain	29.5 mm (1.2 in)	16.6 mm (0.7 in)	20 years	30 of 100 (Routine)
18 July 1930	Nossen, DE	daily rain	50.6 mm (2.0 in)	23.4 mm (0.9 in)	12 years	30 of 100 (Routine)
18 July 1930	Blair, US	all-time high min	26.7 C (80.1 F)	0.6 C (1.1 F)	21 years	30 of 100 (Routine)
18 July 1930	Fichtelberg, DE	daily rain	42.7 mm (1.7 in)	18.2 mm (0.7 in)	24 years	29 of 100 (Routine)
18 July 1930	Franklin 3 NW, US	daily low min	18.9 C (66.0 F)	2.2 C (4.0 F)	35 years	29 of 100 (Routine)
18 July 1930	David City 4E, US	all-time high max	42.2 C (108.0 F)	0.5 C (0.9 F)	19 years	29 of 100 (Routine)
18 July 1930	Speers Ferry, US	daily rain	36.8 mm (1.4 in)	22.8 mm (0.9 in)	24 years	29 of 100 (Routine)
18 July 1930	Teterow, DE	daily rain	40.0 mm (1.6 in)	16.0 mm (0.6 in)	11 years	28 of 100 (Routine)
18 July 1930	Lexington, US	all-time high max	39.4 C (102.9 F)	0.5 C (0.9 F)	11 years	28 of 100 (Routine)
18 July 1930	Taralga Post Office, AU	daily rain	29.5 mm (1.2 in)	11.7 mm (0.5 in)	43 years	27 of 100 (Routine)
18 July 1930	Pincher Creek Town, CA	daily rain	38.1 mm (1.5 in)	22.6 mm (0.9 in)	13 years	27 of 100 (Routine)
18 July 1930	Hammond, US	daily low min	17.8 C (64.0 F)	2.2 C (4.0 F)	35 years	27 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

1793 to 1930

Records set or tied on this calendar date in each year from 1793 to 1930. 1930 had 462 records.

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

Records on 07-18 in each year
Year	Records
1793	2
1801	1
1845	1
1847	1
1851	1
1858	1
1862	1
1863	2
1865	1
1866	2
1871	2
1872	1
1874	1
1877	1
1878	4
1880	1
1881	2
1883	2
1886	2
1887	2
1888	1
1889	2
1890	4
1891	1
1892	2
1895	1
1896	2
1897	6
1898	2
1899	3
1900	8
1901	5
1902	3
1903	14
1904	7
1905	22
1906	13
1907	12
1908	39
1909	11
1910	33
1911	42
1912	28
1913	21
1914	47
1915	95
1916	235
1917	265
1918	58
1919	38
1920	59
1921	67
1922	138
1923	126
1924	306
1925	217
1926	191
1927	85
1928	108
1929	123
1930	462
1931	382
1932	343
1933	228
1934	502
1935	212
1936	665
1937	334
1938	306
1939	424
1940	352
1941	349
1942	661
1943	277
1944	333
1945	350
1946	334
1947	385
1948	289
1949	521
1950	632
1951	307
1952	597
1953	493
1954	501
1955	423
1956	466
1957	325
1958	475
1959	548
1960	669
1961	280
1962	516
1963	269
1964	523
1965	707
1966	545
1967	735
1968	998
1969	590
1970	530
1971	625
1972	701
1973	976
1974	729
1975	643
1976	1,047
1977	839
1978	881
1979	821
1980	747
1981	624
1982	749
1983	1,071
1984	1,000
1985	582
1986	908
1987	1,845
1988	1,001
1989	1,233
1990	1,053
1991	589
1992	1,135
1993	1,013
1994	720
1995	904
1996	1,157
1997	785
1998	1,169
1999	900
2000	1,214
2001	909
2002	840
2003	1,159
2004	985
2005	1,210
2006	1,285
2007	1,267
2008	593
2009	1,757
2010	878
2011	1,148
2012	1,070
2013	921
2014	1,348
2015	745
2016	609
2017	426
2018	699
2019	548
2020	361
2021	676
2022	1,071
2023	867
2024	581
2025	779
2026	806

Download the Data

Data for records on 1930-07-18: 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 10	324
10 to 20	17
20 to 30	7
30 to 40	1
40 to 50	0
50 to 60	1