Weather Records on 30 June 1921

121 weather records were set or tied worldwide on 30 June 1921. Highest significance: Langmorn, AU.

Key Facts for 30 June 1921

On 30 June 1921, 121 weather records were set or tied at long-record stations worldwide.
18 were record highs and 10 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 15 monthly and 105 daily.
Langmorn set a daily record precipitation of 95.3 mm (3.8 in) on 30 June 1921.
Across 160 earlier years (1826 to 2026) the same calendar date averaged 452 records.

Record Map

121 stations

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

Weather records on 30 June 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Langmorn	Australia	Record daily precipitation	95.3 mm (3.8 in)	50 of 100 (Notable)
Texas Station	Australia	Record daily precipitation	59.7 mm (2.4 in)	49 of 100 (Notable)
Hingham (1)	United States	Record daily precipitation	80.8 mm (3.2 in)	48 of 100 (Notable)
Augathella Post Office	Australia	Record daily precipitation	63.5 mm (2.5 in)	45 of 100 (Notable)
Burrawang South Station	Australia	Record daily precipitation	48.8 mm (1.9 in)	44 of 100 (Notable)
Tulloona (Coolanga)	Australia	Record daily precipitation	55.9 mm (2.2 in)	44 of 100 (Notable)
Forbes (Camp Street)	Australia	Record daily precipitation	47.2 mm (1.9 in)	44 of 100 (Notable)
Nelson	Australia	Record daily precipitation	27.9 mm (1.1 in)	41 of 100 (Notable)
Ooma	Australia	Record daily precipitation	62.2 mm (2.4 in)	40 of 100 (Notable)
Philadelphia City	United States	Record daily precipitation	38.9 mm (1.5 in)	38 of 100 (Notable)
Girilambone (Booroomugga)	Australia	Record daily precipitation	50.8 mm (2.0 in)	37 of 100 (Notable)
Springbok	South Africa	Record daily precipitation	40.6 mm (1.6 in)	35 of 100 (Notable)
Beechal	Australia	Record daily precipitation	42.4 mm (1.7 in)	33 of 100 (Routine)
Wandary	Australia	Record daily precipitation	41.9 mm (1.6 in)	33 of 100 (Routine)
Somerville 4 NW	United States	Record daily precipitation	47.2 mm (1.9 in)	32 of 100 (Routine)
Brandon Cda	Canada	Record high minimum temperature	23.9 C (75.0 F)	27 of 100 (Routine)
Melrose Plains	Australia	Record daily precipitation	31.8 mm (1.3 in)	26 of 100 (Routine)
Leominster	United States	Record daily precipitation	64.8 mm (2.6 in)	26 of 100 (Routine)
Washington	United States	Record daily precipitation	41.9 mm (1.6 in)	26 of 100 (Routine)
Grenfell (Quondong Rd)	Australia	Record daily precipitation	43.2 mm (1.7 in)	25 of 100 (Routine)
Murringo (Windermere)	Australia	Record daily precipitation	50.5 mm (2.0 in)	25 of 100 (Routine)
Moobong	Australia	Record daily precipitation	39.1 mm (1.5 in)	24 of 100 (Routine)
Wollun	Australia	Record daily precipitation	38.1 mm (1.5 in)	24 of 100 (Routine)
Moorestown 4 E	United States	Record daily precipitation	52.1 mm (2.1 in)	24 of 100 (Routine)
Greenethorpe (Iandra)	Australia	Record daily precipitation	34.3 mm (1.4 in)	23 of 100 (Routine)
Blue Hill Coop	United States	Record daily precipitation	77.2 mm (3.0 in)	23 of 100 (Routine)
Trundle (Murrumbogie)	Australia	Record daily precipitation	44.5 mm (1.8 in)	22 of 100 (Routine)
Parry Sound	Canada	Record high maximum temperature	35.6 C (96.1 F)	22 of 100 (Routine)
Fort National	Algeria	Record high maximum temperature	40.0 C (104.0 F)	21 of 100 (Routine)
Gumbardo	Australia	Record daily precipitation	63.5 mm (2.5 in)	21 of 100 (Routine)
Walgett Council Depot	Australia	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Windorah Post Office	Australia	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Gilbert River Post Office	Australia	Record daily precipitation	13.7 mm (0.5 in)	20 of 100 (Routine)
Queanbeyan Bowling Club	Australia	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Tennant Creek Post Office	Australia	Record daily precipitation	2.3 mm (0.09 in)	19 of 100 (Routine)
Franklyn Vale	Australia	Record daily precipitation	29.2 mm (1.1 in)	19 of 100 (Routine)
Gunnee	Australia	Record daily precipitation	54.9 mm (2.2 in)	19 of 100 (Routine)
Warrangong	Australia	Record daily precipitation	38.6 mm (1.5 in)	19 of 100 (Routine)
Concord	United States	Record low maximum temperature	17.2 C (63.0 F)	19 of 100 (Routine)
Berthong	Australia	Record daily precipitation	31.0 mm (1.2 in)	18 of 100 (Routine)
Lake Cochituate	United States	Record daily precipitation	83.6 mm (3.3 in)	18 of 100 (Routine)
Dandaloo (Tyrie Homestead)	Australia	Record daily precipitation	34.8 mm (1.4 in)	17 of 100 (Routine)
Beatrice	Canada	Record high maximum temperature	32.8 C (91.0 F)	17 of 100 (Routine)
Minneapolis Wb Dwtn	United States	Record high maximum temperature	37.2 C (99.0 F)	17 of 100 (Routine)
Boulia Airport	Australia	Record low maximum temperature	12.3 C (54.1 F)	16 of 100 (Routine)
Nymagee (Kenmure Station)	Australia	Record daily precipitation	30.2 mm (1.2 in)	16 of 100 (Routine)
Canowindra (Canowindra Street)	Australia	Record daily precipitation	25.9 mm (1.0 in)	16 of 100 (Routine)
St. Petersburg	Russia	Record low minimum temperature	6.6 C (43.9 F)	16 of 100 (Routine)
Tobolsk	Russia	Record high minimum temperature	20.3 C (68.5 F)	16 of 100 (Routine)
Middleburg	South Africa	Record daily precipitation	0.5 mm (0.02 in)	16 of 100 (Routine)
Cumberland Station	Australia	Record daily precipitation	6.4 mm (0.25 in)	15 of 100 (Routine)
Morven Post Office	Australia	Record daily precipitation	5.1 mm (0.20 in)	15 of 100 (Routine)
Lake Cowal	Australia	Record daily precipitation	24.1 mm (0.9 in)	15 of 100 (Routine)
Michelago (Soglio)	Australia	Record daily precipitation	25.7 mm (1.0 in)	15 of 100 (Routine)
Harden (East St)	Australia	Record daily precipitation	28.7 mm (1.1 in)	15 of 100 (Routine)
Condobolin (Borambil Park)	Australia	Record daily precipitation	26.9 mm (1.1 in)	14 of 100 (Routine)
Bungendore (Douglas)	Australia	Record daily precipitation	25.4 mm (1.0 in)	14 of 100 (Routine)
Mandamar	Australia	Record daily precipitation	21.3 mm (0.8 in)	14 of 100 (Routine)
White River	Canada	Record high maximum temperature	33.3 C (91.9 F)	14 of 100 (Routine)
Alton	Canada	Record high maximum temperature	31.7 C (89.1 F)	14 of 100 (Routine)

Counts by Type and Timescale

121 records

Records set or tied on 30 June 1921 by type: Highest daily maximum 8, Lowest daily maximum 8, Highest daily minimum 10, Lowest daily minimum 2, Heaviest daily rainfall 93.

Records on 30 June 1921 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	8
Highest daily minimum	10
Lowest daily minimum	2
Heaviest daily rainfall	93
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 June 1921 by timescale: all-time 1, monthly 15, daily 105.

How Much Records Were Beaten By

111 broken records

Margins by which the 111 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 93.5. Ties are not counted.

Top 20 by Significance

30 June 1921

Top 20 records on 30 June 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 June 1921	Langmorn, AU	daily rain	95.3 mm (3.8 in)	93.5 mm (3.7 in)	23 years	50 of 100 (Notable)
30 June 1921	Texas Station, AU	daily rain	59.7 mm (2.4 in)	53.9 mm (2.1 in)	22 years	49 of 100 (Notable)
30 June 1921	Hingham (1), US	daily rain	80.8 mm (3.2 in)	57.7 mm (2.3 in)	16 years	48 of 100 (Notable)
30 June 1921	Augathella Post Office, AU	daily rain	63.5 mm (2.5 in)	62.2 mm (2.4 in)	8 years	45 of 100 (Notable)
30 June 1921	Burrawang South Station, AU	monthly rain	48.8 mm (1.9 in)	12.0 mm (0.5 in)	44 years	44 of 100 (Notable)
30 June 1921	Tulloona (Coolanga), AU	daily rain	55.9 mm (2.2 in)	53.4 mm (2.1 in)	0 years	44 of 100 (Notable)
30 June 1921	Forbes (Camp Street), AU	daily rain	47.2 mm (1.9 in)	31.5 mm (1.2 in)	0 years	44 of 100 (Notable)
30 June 1921	Nelson, AU	daily rain	27.9 mm (1.1 in)	17.7 mm (0.7 in)	29 years	41 of 100 (Notable)
30 June 1921	Ooma, AU	monthly rain	62.2 mm (2.4 in)	16.5 mm (0.6 in)	16 years	40 of 100 (Notable)
30 June 1921	Philadelphia City, US	daily rain	38.9 mm (1.5 in)	23.7 mm (0.9 in)	45 years	38 of 100 (Notable)
30 June 1921	Girilambone (Booroomugga), AU	daily rain	50.8 mm (2.0 in)	31.0 mm (1.2 in)	0 years	37 of 100 (Notable)
30 June 1921	Springbok, ZA	daily rain	40.6 mm (1.6 in)	33.0 mm (1.3 in)	4 years	35 of 100 (Notable)
30 June 1921	Beechal, AU	daily rain	42.4 mm (1.7 in)	24.6 mm (1.0 in)	33 years	33 of 100 (Routine)
30 June 1921	Wandary, AU	monthly rain	41.9 mm (1.6 in)	7.6 mm (0.30 in)	30 years	33 of 100 (Routine)
30 June 1921	Somerville 4 NW, US	daily rain	47.2 mm (1.9 in)	32.0 mm (1.3 in)	0 years	32 of 100 (Routine)
30 June 1921	Brandon Cda, CA	all-time high min	23.9 C (75.0 F)	0.6 C (1.1 F)	11 years	27 of 100 (Routine)
30 June 1921	Melrose Plains, AU	daily rain	31.8 mm (1.3 in)	15.3 mm (0.6 in)	0 years	26 of 100 (Routine)
30 June 1921	Leominster, US	daily rain	64.8 mm (2.6 in)	22.9 mm (0.9 in)	14 years	26 of 100 (Routine)
30 June 1921	Washington, US	daily rain	41.9 mm (1.6 in)	17.8 mm (0.7 in)	25 years	26 of 100 (Routine)
30 June 1921	Grenfell (Quondong Rd), AU	monthly rain	43.2 mm (1.7 in)	5.6 mm (0.22 in)	16 years	25 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 1921

Records set or tied on this calendar date in each year from 1826 to 1921. 1921 had 121 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 1921-06-30: 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	97
20 to 40	9
40 to 60	3
60 to 80	1
80 to 100	1