Weather Records on 30 July 1921

193 weather records were set or tied worldwide on 30 July 1921. Highest significance: Boomanoomana, AU.

Key Facts for 30 July 1921

On 30 July 1921, 193 weather records were set or tied at long-record stations worldwide.
10 were record highs and 2 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 0 monthly and 191 daily.
Boomanoomana set a daily record precipitation of 29.2 mm (1.1 in) on 30 July 1921.
Across 168 earlier years (1794 to 2026) the same calendar date averaged 442 records.

Record Map

193 stations

193 station records on 30 July 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 July 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Boomanoomana	Australia	Record daily precipitation	29.2 mm (1.1 in)	53 of 100 (Notable)
Amphitheatre	Australia	Record daily precipitation	25.1 mm (1.0 in)	42 of 100 (Notable)
Clarion 3 SW	United States	Record daily precipitation	80.0 mm (3.1 in)	41 of 100 (Notable)
Brungle (Rosemount)	Australia	Record daily precipitation	43.2 mm (1.7 in)	37 of 100 (Notable)
Haparanda	Sweden	Record daily precipitation	29.4 mm (1.2 in)	37 of 100 (Notable)
Zagreb-Gric	Croatia	Record high minimum temperature	23.3 C (73.9 F)	35 of 100 (Notable)
Kanmantoo	Australia	Record daily precipitation	27.4 mm (1.1 in)	30 of 100 (Routine)
Batlow Post Office	Australia	Record daily precipitation	54.1 mm (2.1 in)	30 of 100 (Routine)
Adelong Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	27 of 100 (Routine)
Tumut (Wattle Cres)	Australia	Record daily precipitation	26.7 mm (1.1 in)	26 of 100 (Routine)
Newlyn Reservoir	Australia	Record daily precipitation	29.5 mm (1.2 in)	26 of 100 (Routine)
Corryong (Parish Lane)	Australia	Record daily precipitation	25.7 mm (1.0 in)	25 of 100 (Routine)
Bridgewater	Australia	Record daily precipitation	34.8 mm (1.4 in)	23 of 100 (Routine)
Paris	Canada	Record daily precipitation	42.2 mm (1.7 in)	23 of 100 (Routine)
Smeaton Weir	Australia	Record daily precipitation	25.7 mm (1.0 in)	21 of 100 (Routine)
Tittybong Pine Grove Farm	Australia	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Deniliquin Norwood	Australia	Record daily precipitation	14.0 mm (0.6 in)	20 of 100 (Routine)
Adelaide (Pooraka)	Australia	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
Bendigo Prison	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Cooke Plains	Australia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Barmah East	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Adelaide (Thorndon Park)	Australia	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Crowlands (Woodlands)	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Benjeroop (Davey)	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Maragle Station	Australia	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Swan Hill Post Office	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Mulwala Homestead	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Yarrawonga Post Office	Australia	Record daily precipitation	17.0 mm (0.7 in)	20 of 100 (Routine)
Maryborough	Australia	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Normanville	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Armidale (Radio Station 2Ad)	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Tungamah	Australia	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Emu Rail (Dalyenong)	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Goorambat	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Seymour Shire Depot	Australia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Warooka	Australia	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Wellwood	Australia	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Lake Eildon	Australia	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
North Adelaide	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Orange (McLaughlin St)	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Murringo (Windermere)	Australia	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Tarnagulla	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Whroo	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Wangaratta	Australia	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Sturt	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Yankalilla (Woodvale)	Australia	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Hill End Post Office	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Orange Post Office	Australia	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Mallan (Niemur Valley)	Australia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Streatham (Pretty Tower)	Australia	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Haliburton A	Canada	Record daily precipitation	25.4 mm (1.0 in)	20 of 100 (Routine)
Nairne	Australia	Record daily precipitation	26.7 mm (1.1 in)	19 of 100 (Routine)
Majura 2	Australia	Record daily precipitation	14.7 mm (0.6 in)	19 of 100 (Routine)
Springfield 3	Australia	Record daily precipitation	17.0 mm (0.7 in)	19 of 100 (Routine)
Moulamein Post Office	Australia	Record daily precipitation	11.4 mm (0.4 in)	19 of 100 (Routine)
Longerenong	Australia	Record daily precipitation	8.1 mm (0.32 in)	19 of 100 (Routine)
Lake Rowan (Bungeet)	Australia	Record daily precipitation	16.5 mm (0.6 in)	19 of 100 (Routine)
Wanalta	Australia	Record daily precipitation	13.0 mm (0.5 in)	19 of 100 (Routine)
Warrnambool Shire Office	Australia	Record daily precipitation	11.7 mm (0.5 in)	19 of 100 (Routine)

Counts by Type and Timescale

193 records

Records set or tied on 30 July 1921 by type: Highest daily maximum 2, Lowest daily maximum 1, Highest daily minimum 8, Lowest daily minimum 1, Heaviest daily rainfall 181.

Records on 30 July 1921 by type
Record type	Records
Highest daily maximum	2
Lowest daily maximum	1
Highest daily minimum	8
Lowest daily minimum	1
Heaviest daily rainfall	181
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 July 1921 by timescale: all-time 2, monthly 0, daily 191.

How Much Records Were Beaten By

180 broken records

Margins by which the 180 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 42.9. Ties are not counted.

Top 20 by Significance

30 July 1921

Top 20 records on 30 July 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 July 1921	Boomanoomana, AU	daily rain	29.2 mm (1.1 in)	20.3 mm (0.8 in)	38 years	53 of 100 (Notable)
30 July 1921	Amphitheatre, AU	daily rain	25.1 mm (1.0 in)	20.8 mm (0.8 in)	18 years	42 of 100 (Notable)
30 July 1921	Clarion 3 SW, US	daily rain	80.0 mm (3.1 in)	42.9 mm (1.7 in)	16 years	41 of 100 (Notable)
30 July 1921	Brungle (Rosemount), AU	daily rain	43.2 mm (1.7 in)	26.2 mm (1.0 in)	12 years	37 of 100 (Notable)
30 July 1921	Haparanda, SE	daily rain	29.4 mm (1.2 in)	17.3 mm (0.7 in)	8 years	37 of 100 (Notable)
30 July 1921	Zagreb-Gric, HR	all-time high min	23.3 C (73.9 F)	0.2 C (0.4 F)	37 years	35 of 100 (Notable)
30 July 1921	Kanmantoo, AU	daily rain	27.4 mm (1.1 in)	8.9 mm (0.35 in)	33 years	30 of 100 (Routine)
30 July 1921	Batlow Post Office, AU	daily rain	54.1 mm (2.1 in)	36.3 mm (1.4 in)	7 years	30 of 100 (Routine)
30 July 1921	Adelong Post Office, AU	daily rain	29.2 mm (1.1 in)	11.4 mm (0.4 in)	30 years	27 of 100 (Routine)
30 July 1921	Tumut (Wattle Cres), AU	daily rain	26.7 mm (1.1 in)	12.5 mm (0.5 in)	26 years	26 of 100 (Routine)
30 July 1921	Newlyn Reservoir, AU	daily rain	29.5 mm (1.2 in)	7.1 mm (0.28 in)	33 years	26 of 100 (Routine)
30 July 1921	Corryong (Parish Lane), AU	daily rain	25.7 mm (1.0 in)	10.0 mm (0.4 in)	26 years	25 of 100 (Routine)
30 July 1921	Bridgewater, AU	daily rain	34.8 mm (1.4 in)	14.0 mm (0.6 in)	18 years	23 of 100 (Routine)
30 July 1921	Paris, CA	daily rain	42.2 mm (1.7 in)	14.5 mm (0.6 in)	15 years	23 of 100 (Routine)
30 July 1921	Smeaton Weir, AU	daily rain	25.7 mm (1.0 in)	3.6 mm (0.14 in)	33 years	21 of 100 (Routine)
30 July 1921	Tittybong Pine Grove Farm, AU	daily rain	16.5 mm (0.6 in)	10.7 mm (0.4 in)	30 years	20 of 100 (Routine)
30 July 1921	Deniliquin Norwood, AU	daily rain	14.0 mm (0.6 in)	8.4 mm (0.33 in)	30 years	20 of 100 (Routine)
30 July 1921	Adelaide (Pooraka), AU	daily rain	19.3 mm (0.8 in)	6.6 mm (0.26 in)	33 years	20 of 100 (Routine)
30 July 1921	Bendigo Prison, AU	daily rain	13.7 mm (0.5 in)	5.8 mm (0.23 in)	50 years	20 of 100 (Routine)
30 July 1921	Cooke Plains, AU	daily rain	14.5 mm (0.6 in)	7.1 mm (0.28 in)	22 years	20 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

1794 to 1921

Records set or tied on this calendar date in each year from 1794 to 1921. 1921 had 193 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 1921-07-30: 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 10	155
10 to 20	20
20 to 30	3
30 to 40	1
40 to 50	1