Weather Records on 30 May 1919

90 weather records were set or tied worldwide on 30 May 1919. Highest significance: Casino Airport, AU.

Key Facts for 30 May 1919

On 30 May 1919, 90 weather records were set or tied at long-record stations worldwide.
42 were record highs and 6 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 84 daily.
Casino Airport set a daily record precipitation of 73.7 mm (2.9 in) on 30 May 1919.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 441 records.

Record Map

90 stations

90 station records on 30 May 1919 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1919: highest significance records shown on the map
Station	Country	Type	Value	Significance
Casino Airport	Australia	Record daily precipitation	73.7 mm (2.9 in)	55 of 100 (Notable)
Tabulam Post Office	Australia	Record daily precipitation	45.7 mm (1.8 in)	51 of 100 (Notable)
Yamba Pilot Station	Australia	Record daily precipitation	107.7 mm (4.2 in)	48 of 100 (Notable)
Upper Copmanhurst	Australia	Record daily precipitation	62.5 mm (2.5 in)	48 of 100 (Notable)
Lismore (Centre Street)	Australia	Record daily precipitation	65.5 mm (2.6 in)	44 of 100 (Notable)
Ramornie	Australia	Record daily precipitation	56.1 mm (2.2 in)	44 of 100 (Notable)
Woolgoolga (Clear Place)	Australia	Record daily precipitation	84.3 mm (3.3 in)	38 of 100 (Notable)
Barkerville	Canada	Record daily snowfall	9.1 cm (3.6 in)	35 of 100 (Notable)
Madison Wb City	United States	Record high maximum temperature	32.8 C (91.0 F)	29 of 100 (Routine)
Ebor (Kotupna)	Australia	Record daily precipitation	29.2 mm (1.1 in)	28 of 100 (Routine)
Edmonton	Canada	Record daily snowfall	6.4 cm (2.5 in)	27 of 100 (Routine)
Grafton City Council	Australia	Record daily precipitation	63.5 mm (2.5 in)	26 of 100 (Routine)
Edmonton	Canada	Record low maximum temperature	2.8 C (37.0 F)	26 of 100 (Routine)
Armagh	United Kingdom	Record high maximum temperature	24.4 C (75.9 F)	24 of 100 (Routine)
Portland	United States	Record high minimum temperature	15.6 C (60.1 F)	23 of 100 (Routine)
Newark Liberty Intl AP	United States	Record high minimum temperature	20.0 C (68.0 F)	22 of 100 (Routine)
Aleksandrovsk-Sahalinskij	Russia	Record daily precipitation	23.5 mm (0.9 in)	20 of 100 (Routine)
Glen Innes Post Office	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Condobolin Station	Australia	Record daily precipitation	26.2 mm (1.0 in)	20 of 100 (Routine)
Coonamble (Nardoo)	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Stony Mountain	Canada	Record high maximum temperature	35.0 C (95.0 F)	20 of 100 (Routine)
Morgantown 1	United States	Record high maximum temperature	32.8 C (91.0 F)	20 of 100 (Routine)
Escanaba	United States	Record high minimum temperature	14.4 C (57.9 F)	20 of 100 (Routine)
Ny City Cntrl Park	United States	Record high minimum temperature	21.1 C (70.0 F)	20 of 100 (Routine)
Wagga Wagga (Kooringal)	Australia	Record high minimum temperature	11.1 C (52.0 F)	19 of 100 (Routine)
Stonehenge	Australia	Record daily precipitation	18.5 mm (0.7 in)	18 of 100 (Routine)
Cape May 2 NW	United States	Record high minimum temperature	19.4 C (66.9 F)	18 of 100 (Routine)
Warwick Post Office	Australia	Record daily precipitation	16.5 mm (0.6 in)	17 of 100 (Routine)
Boggabri (Milchengowrie)	Australia	Record daily precipitation	25.9 mm (1.0 in)	17 of 100 (Routine)
Stony Mountain	Canada	Record high minimum temperature	17.2 C (63.0 F)	17 of 100 (Routine)
Middletown 4 W	United States	Record high minimum temperature	17.8 C (64.0 F)	17 of 100 (Routine)
World Trade Ctr	United States	Record high maximum temperature	30.0 C (86.0 F)	17 of 100 (Routine)
Deepwater Post Office	Australia	Record daily precipitation	13.5 mm (0.5 in)	16 of 100 (Routine)
Lawrence Post Office	Australia	Record daily precipitation	87.4 mm (3.4 in)	16 of 100 (Routine)
Beatrice	Canada	Record high maximum temperature	30.6 C (87.1 F)	16 of 100 (Routine)
Parry Sound	Canada	Record high maximum temperature	30.0 C (86.0 F)	16 of 100 (Routine)
Milliwindi	Australia	Record daily precipitation	16.5 mm (0.6 in)	15 of 100 (Routine)
New Westminster	Canada	Record low minimum temperature	2.8 C (37.0 F)	15 of 100 (Routine)
Prince Albert	Canada	Record high maximum temperature	33.3 C (91.9 F)	15 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record high maximum temperature	31.7 C (89.1 F)	15 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	32.2 C (90.0 F)	15 of 100 (Routine)
World Trade Ctr	United States	Record high minimum temperature	21.7 C (71.1 F)	15 of 100 (Routine)
Eversleigh	Australia	Record daily precipitation	10.4 mm (0.4 in)	14 of 100 (Routine)
Cumbalum (Fairview)	Australia	Record daily precipitation	116.8 mm (4.6 in)	14 of 100 (Routine)
Fort Chipewyan	Canada	Record daily snowfall	1.3 cm (0.5 in)	14 of 100 (Routine)
Atlantic City Marina	United States	Record high maximum temperature	32.2 C (90.0 F)	14 of 100 (Routine)
Green Bay	United States	Record high maximum temperature	30.0 C (86.0 F)	14 of 100 (Routine)
Condong Sugar Mill	Australia	Record daily precipitation	69.1 mm (2.7 in)	13 of 100 (Routine)
Roseberry	Australia	Record daily precipitation	26.7 mm (1.1 in)	13 of 100 (Routine)
Buchan	Australia	Record daily precipitation	25.4 mm (1.0 in)	13 of 100 (Routine)
Kingston Queens U	Canada	Record high maximum temperature	26.1 C (79.0 F)	13 of 100 (Routine)
Setauket Strong	United States	Record high minimum temperature	16.7 C (62.1 F)	13 of 100 (Routine)
Philadelphia City	United States	Record high minimum temperature	22.8 C (73.0 F)	13 of 100 (Routine)
Maragle Station	Australia	Record daily precipitation	10.7 mm (0.4 in)	12 of 100 (Routine)
White River	Canada	Record high maximum temperature	32.2 C (90.0 F)	12 of 100 (Routine)
Haliburton A	Canada	Record high maximum temperature	33.9 C (93.0 F)	11 of 100 (Routine)
Storrs	United States	Record high maximum temperature	30.6 C (87.1 F)	11 of 100 (Routine)
Tinda Tank	Australia	Record daily precipitation	7.6 mm (0.30 in)	10 of 100 (Routine)
Tweed Heads Golf Club	Australia	Record daily precipitation	68.6 mm (2.7 in)	10 of 100 (Routine)
Bellbrook (East Street)	Australia	Record daily precipitation	21.6 mm (0.9 in)	10 of 100 (Routine)

Counts by Type and Timescale

90 records

Records set or tied on 30 May 1919 by type: Highest daily maximum 24, Lowest daily maximum 4, Highest daily minimum 18, Lowest daily minimum 2, Heaviest daily rainfall 39, Heaviest daily snowfall 3.

Records on 30 May 1919 by type
Record type	Records
Highest daily maximum	24
Lowest daily maximum	4
Highest daily minimum	18
Lowest daily minimum	2
Heaviest daily rainfall	39
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 30 May 1919 by timescale: all-time 0, monthly 6, daily 84.

How Much Records Were Beaten By

75 broken records

Margins by which the 75 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 91.0. Ties are not counted.

Top 20 by Significance

30 May 1919

Top 20 records on 30 May 1919 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1919	Casino Airport, AU	daily rain	73.7 mm (2.9 in)	58.5 mm (2.3 in)	31 years	55 of 100 (Notable)
30 May 1919	Tabulam Post Office, AU	daily rain	45.7 mm (1.8 in)	33.0 mm (1.3 in)	29 years	51 of 100 (Notable)
30 May 1919	Yamba Pilot Station, AU	daily rain	107.7 mm (4.2 in)	56.4 mm (2.2 in)	31 years	48 of 100 (Notable)
30 May 1919	Upper Copmanhurst, AU	daily rain	62.5 mm (2.5 in)	42.2 mm (1.7 in)	27 years	48 of 100 (Notable)
30 May 1919	Lismore (Centre Street), AU	daily rain	65.5 mm (2.6 in)	38.6 mm (1.5 in)	31 years	44 of 100 (Notable)
30 May 1919	Ramornie, AU	daily rain	56.1 mm (2.2 in)	35.3 mm (1.4 in)	27 years	44 of 100 (Notable)
30 May 1919	Woolgoolga (Clear Place), AU	daily rain	84.3 mm (3.3 in)	43.7 mm (1.7 in)	27 years	38 of 100 (Notable)
30 May 1919	Barkerville, CA	daily snowfall	9.1 cm (3.6 in)	9.1 cm (3.6 in)	30 years	35 of 100 (Notable)
30 May 1919	Madison Wb City, US	monthly high max	32.8 C (91.0 F)	0.6 C (1.1 F)	45 years	29 of 100 (Routine)
30 May 1919	Ebor (Kotupna), AU	daily rain	29.2 mm (1.1 in)	18.3 mm (0.7 in)	31 years	28 of 100 (Routine)
30 May 1919	Edmonton, CA	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	37 years	27 of 100 (Routine)
30 May 1919	Grafton City Council, AU	daily rain	63.5 mm (2.5 in)	22.1 mm (0.9 in)	16 years	26 of 100 (Routine)
30 May 1919	Edmonton, CA	daily low max	2.8 C (37.0 F)	11.1 C (20.0 F)	12 years	26 of 100 (Routine)
30 May 1919	Armagh, GB	daily high max	24.4 C (75.9 F)	0.2 C (0.4 F)	59 years	24 of 100 (Routine)
30 May 1919	Portland, US	daily high min	15.6 C (60.1 F)	2.3 C (4.1 F)	41 years	23 of 100 (Routine)
30 May 1919	Newark Liberty Intl AP, US	daily high min	20.0 C (68.0 F)	0.6 C (1.1 F)	47 years	22 of 100 (Routine)
30 May 1919	Aleksandrovsk-Sahalinskij, RU	daily rain	23.5 mm (0.9 in)	15.8 mm (0.6 in)	36 years	20 of 100 (Routine)
30 May 1919	Glen Innes Post Office, AU	daily rain	18.8 mm (0.7 in)	9.9 mm (0.39 in)	31 years	20 of 100 (Routine)
30 May 1919	Condobolin Station, AU	daily rain	26.2 mm (1.0 in)	5.4 mm (0.21 in)	36 years	20 of 100 (Routine)
30 May 1919	Coonamble (Nardoo), AU	daily rain	21.6 mm (0.9 in)	12.7 mm (0.5 in)	26 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

1818 to 1919

Records set or tied on this calendar date in each year from 1818 to 1919. 1919 had 90 records.

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

Records on 05-30 in each year
Year	Records
1818	3
1844	1
1847	1
1848	1
1852	1
1853	1
1855	1
1856	1
1858	1
1860	2
1863	1
1864	1
1865	4
1867	1
1868	4
1870	1
1871	2
1873	4
1878	1
1879	1
1880	2
1881	1
1882	2
1883	1
1884	2
1885	1
1886	1
1887	1
1889	3
1890	1
1891	1
1892	2
1893	7
1894	2
1895	5
1896	1
1897	1
1898	2
1899	4
1900	1
1901	4
1902	9
1903	12
1904	7
1905	20
1906	8
1907	20
1908	32
1909	6
1910	22
1911	22
1912	26
1913	89
1914	25
1915	32
1916	41
1917	42
1918	31
1919	90
1920	28
1921	392
1922	72
1923	121
1924	187
1925	190
1926	201
1927	177
1928	86
1929	368
1930	530
1931	316
1932	256
1933	250
1934	731
1935	88
1936	579
1937	440
1938	309
1939	336
1940	289
1941	518
1942	500
1943	444
1944	325
1945	383
1946	310
1947	880
1948	386
1949	318
1950	376
1951	448
1952	295
1953	622
1954	271
1955	377
1956	466
1957	267
1958	480
1959	419
1960	274
1961	657
1962	454
1963	245
1964	709
1965	454
1966	326
1967	859
1968	357
1969	1,092
1970	483
1971	1,044
1972	721
1973	391
1974	631
1975	776
1976	499
1977	444
1978	888
1979	1,185
1980	650
1981	1,001
1982	981
1983	1,310
1984	2,543
1985	772
1986	1,264
1987	1,021
1988	1,371
1989	1,021
1990	983
1991	1,264
1992	1,413
1993	690
1994	834
1995	777
1996	893
1997	936
1998	1,190
1999	1,113
2000	1,391
2001	854
2002	940
2003	1,110
2004	1,219
2005	737
2006	1,179
2007	1,128
2008	829
2009	480
2010	771
2011	1,914
2012	720
2013	821
2014	551
2015	699
2016	540
2017	657
2018	1,319
2019	706
2020	920
2021	841
2022	1,034
2023	344
2024	600
2025	828
2026	525

Download the Data

Data for records on 1919-05-30: 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	65
20 to 40	4
40 to 60	4
60 to 80	1
80 to 100	1