Weather Records on 30 May 1981

1,001 weather records were set or tied worldwide on 30 May 1981. Highest significance: Second Valley (Poolamacca), AU.

Key Facts for 30 May 1981

On 30 May 1981, 1,001 weather records were set or tied at long-record stations worldwide.
245 were record highs and 161 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 30 monthly and 971 daily.
Second Valley (Poolamacca) set a daily record precipitation of 50.0 mm (2.0 in) on 30 May 1981.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 435 records.

Record Map

1,001 stations

1,001 station records on 30 May 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Second Valley (Poolamacca)	Australia	Record daily precipitation	50.0 mm (2.0 in)	68 of 100 (Major)
Brownsville	United States	Record daily precipitation	84.6 mm (3.3 in)	66 of 100 (Major)
Winfield 3NE	United States	Record daily precipitation	104.4 mm (4.1 in)	65 of 100 (Major)
Ravensthorpe	Australia	Record daily precipitation	41.0 mm (1.6 in)	62 of 100 (Major)
Wychitella	Australia	Record daily precipitation	49.0 mm (1.9 in)	60 of 100 (Major)
Muresk Agric.College	Australia	Record daily precipitation	52.8 mm (2.1 in)	59 of 100 (Notable)
Southbourne	Australia	Record daily precipitation	60.0 mm (2.4 in)	58 of 100 (Notable)
Brookton	Australia	Record daily precipitation	55.0 mm (2.2 in)	58 of 100 (Notable)
Klipplaat (Sar)	South Africa	Record daily precipitation	58.0 mm (2.3 in)	58 of 100 (Notable)
Merredin	Australia	Record daily precipitation	35.0 mm (1.4 in)	57 of 100 (Notable)
Helena 1 SSE	United States	Record daily precipitation	56.4 mm (2.2 in)	57 of 100 (Notable)
Moorine Rock	Australia	Record daily precipitation	29.7 mm (1.2 in)	56 of 100 (Notable)
Colorado	Australia	Record daily precipitation	47.6 mm (1.9 in)	55 of 100 (Notable)
Tambarmering	Australia	Record daily precipitation	46.6 mm (1.8 in)	55 of 100 (Notable)
Noongaar	Australia	Record daily precipitation	33.0 mm (1.3 in)	55 of 100 (Notable)
Southern Cross	Australia	Record daily precipitation	26.2 mm (1.0 in)	55 of 100 (Notable)
Hillcroft	Australia	Record daily precipitation	46.1 mm (1.8 in)	52 of 100 (Notable)
Lake Pingrup	Australia	Record daily precipitation	29.4 mm (1.2 in)	52 of 100 (Notable)
Sucinsk	Kazakhstan	Record daily precipitation	32.7 mm (1.3 in)	52 of 100 (Notable)
Bulyee	Australia	Record daily precipitation	44.0 mm (1.7 in)	50 of 100 (Notable)
Warralakin	Australia	Record daily precipitation	38.0 mm (1.5 in)	50 of 100 (Notable)
Collerina (Corrella)	Australia	Record daily precipitation	49.6 mm (2.0 in)	50 of 100 (Notable)
Rowena (Bunna Bunna)	Australia	Record daily precipitation	48.0 mm (1.9 in)	50 of 100 (Notable)
Walsenburg 1 NW	United States	Record daily precipitation	38.1 mm (1.5 in)	50 of 100 (Notable)
Kununoppin	Australia	Record daily precipitation	37.6 mm (1.5 in)	49 of 100 (Notable)
Fazenda Alegria	Brazil	Record daily precipitation	60.3 mm (2.4 in)	49 of 100 (Notable)
El Chico	Mexico	Record daily precipitation	65.3 mm (2.6 in)	49 of 100 (Notable)
Grahamstown	South Africa	Record daily precipitation	59.4 mm (2.3 in)	49 of 100 (Notable)
Oakland	Australia	Record daily precipitation	48.0 mm (1.9 in)	48 of 100 (Notable)
Ciili	Kazakhstan	Record daily precipitation	31.4 mm (1.2 in)	48 of 100 (Notable)
Memphis	United States	Record daily precipitation	87.6 mm (3.4 in)	48 of 100 (Notable)
Moningarin	Australia	Record daily precipitation	35.5 mm (1.4 in)	47 of 100 (Notable)
Westonia 1	Australia	Record daily precipitation	30.0 mm (1.2 in)	47 of 100 (Notable)
Kingsville	United States	Record daily precipitation	106.9 mm (4.2 in)	47 of 100 (Notable)
Perth Regional Office	Australia	Record daily precipitation	47.8 mm (1.9 in)	46 of 100 (Notable)
Northam	Australia	Record daily precipitation	36.3 mm (1.4 in)	46 of 100 (Notable)
Neilborough	Australia	Record daily precipitation	34.0 mm (1.3 in)	45 of 100 (Notable)
Mukinbudin	Australia	Record daily precipitation	34.8 mm (1.4 in)	45 of 100 (Notable)
Nungarin	Australia	Record daily precipitation	36.4 mm (1.4 in)	45 of 100 (Notable)
Varley	Australia	Record daily precipitation	25.2 mm (1.0 in)	45 of 100 (Notable)
Newdegate	Australia	Record daily precipitation	30.2 mm (1.2 in)	45 of 100 (Notable)
Wilyama	Australia	Record daily precipitation	51.8 mm (2.0 in)	45 of 100 (Notable)
Dobra Scritia	Australia	Record daily precipitation	30.0 mm (1.2 in)	45 of 100 (Notable)
Carlos Chagas	Brazil	Record daily precipitation	57.0 mm (2.2 in)	45 of 100 (Notable)
Wattoning	Australia	Record daily precipitation	30.0 mm (1.2 in)	44 of 100 (Notable)
Gilavin	Australia	Record daily precipitation	41.4 mm (1.6 in)	44 of 100 (Notable)
Kayballup	Australia	Record daily precipitation	26.0 mm (1.0 in)	44 of 100 (Notable)
Edenholme	Australia	Record daily precipitation	33.0 mm (1.3 in)	43 of 100 (Notable)
Pingrup	Australia	Record daily precipitation	29.0 mm (1.1 in)	43 of 100 (Notable)
Muchea Tree Farm	Australia	Record daily precipitation	51.6 mm (2.0 in)	42 of 100 (Notable)
Quellington	Australia	Record daily precipitation	36.0 mm (1.4 in)	42 of 100 (Notable)
Pingaring	Australia	Record daily precipitation	37.0 mm (1.5 in)	42 of 100 (Notable)
Westonia	Australia	Record daily precipitation	31.4 mm (1.2 in)	42 of 100 (Notable)
Achisaj	Kazakhstan	Record daily precipitation	33.8 mm (1.3 in)	42 of 100 (Notable)
Renfrow 1 E	United States	Record daily precipitation	63.0 mm (2.5 in)	42 of 100 (Notable)
New Forest	Australia	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Bencubbin	Australia	Record daily precipitation	27.4 mm (1.1 in)	41 of 100 (Notable)
Moulyinning	Australia	Record daily precipitation	26.8 mm (1.1 in)	41 of 100 (Notable)
Bodallin South	Australia	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Marvel Loch	Australia	Record daily precipitation	27.0 mm (1.1 in)	41 of 100 (Notable)

Counts by Type and Timescale

1,001 records

Records set or tied on 30 May 1981 by type: Highest daily maximum 50, Lowest daily maximum 81, Highest daily minimum 195, Lowest daily minimum 80, Heaviest daily rainfall 592, Heaviest daily snowfall 2, Deepest snow cover 1.

Records on 30 May 1981 by type
Record type	Records
Highest daily maximum	50
Lowest daily maximum	81
Highest daily minimum	195
Lowest daily minimum	80
Heaviest daily rainfall	592
Heaviest daily snowfall	2
Deepest snow cover	1

Records on 30 May 1981 by timescale: all-time 0, monthly 30, daily 971.

How Much Records Were Beaten By

888 broken records

Margins by which the 888 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.0. Ties are not counted.

Top 20 by Significance

30 May 1981

Top 20 records on 30 May 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1981	Second Valley (Poolamacca), AU	daily rain	50.0 mm (2.0 in)	32.2 mm (1.3 in)	76 years	68 of 100 (Major)
30 May 1981	Brownsville, US	daily rain	84.6 mm (3.3 in)	62.8 mm (2.5 in)	67 years	66 of 100 (Major)
30 May 1981	Winfield 3NE, US	daily rain	104.4 mm (4.1 in)	72.6 mm (2.9 in)	58 years	65 of 100 (Major)
30 May 1981	Ravensthorpe, AU	daily rain	41.0 mm (1.6 in)	20.7 mm (0.8 in)	72 years	62 of 100 (Major)
30 May 1981	Wychitella, AU	daily rain	49.0 mm (1.9 in)	33.3 mm (1.3 in)	48 years	60 of 100 (Major)
30 May 1981	Muresk Agric.College, AU	daily rain	52.8 mm (2.1 in)	35.0 mm (1.4 in)	48 years	59 of 100 (Notable)
30 May 1981	Southbourne, AU	daily rain	60.0 mm (2.4 in)	32.1 mm (1.3 in)	48 years	58 of 100 (Notable)
30 May 1981	Brookton, AU	daily rain	55.0 mm (2.2 in)	28.1 mm (1.1 in)	48 years	58 of 100 (Notable)
30 May 1981	Klipplaat (Sar), ZA	daily rain	58.0 mm (2.3 in)	55.5 mm (2.2 in)	35 years	58 of 100 (Notable)
30 May 1981	Merredin, AU	daily rain	35.0 mm (1.4 in)	22.3 mm (0.9 in)	60 years	57 of 100 (Notable)
30 May 1981	Helena 1 SSE, US	daily rain	56.4 mm (2.2 in)	43.7 mm (1.7 in)	74 years	57 of 100 (Notable)
30 May 1981	Moorine Rock, AU	daily rain	29.7 mm (1.2 in)	23.3 mm (0.9 in)	52 years	56 of 100 (Notable)
30 May 1981	Colorado, AU	daily rain	47.6 mm (1.9 in)	24.7 mm (1.0 in)	60 years	55 of 100 (Notable)
30 May 1981	Tambarmering, AU	daily rain	46.6 mm (1.8 in)	26.0 mm (1.0 in)	48 years	55 of 100 (Notable)
30 May 1981	Noongaar, AU	daily rain	33.0 mm (1.3 in)	23.3 mm (0.9 in)	52 years	55 of 100 (Notable)
30 May 1981	Southern Cross, AU	daily rain	26.2 mm (1.0 in)	18.3 mm (0.7 in)	60 years	55 of 100 (Notable)
30 May 1981	Hillcroft, AU	daily rain	46.1 mm (1.8 in)	26.0 mm (1.0 in)	48 years	52 of 100 (Notable)
30 May 1981	Lake Pingrup, AU	daily rain	29.4 mm (1.2 in)	20.3 mm (0.8 in)	48 years	52 of 100 (Notable)
30 May 1981	Sucinsk, KZ	daily rain	32.7 mm (1.3 in)	21.3 mm (0.8 in)	27 years	52 of 100 (Notable)
30 May 1981	Bulyee, AU	daily rain	44.0 mm (1.7 in)	31.3 mm (1.2 in)	23 years	50 of 100 (Notable)

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 1981

Records set or tied on this calendar date in each year from 1818 to 1981. 1981 had 1,001 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 1981-05-30: 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 2026-10-16 (16 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	787
20 to 40	84
40 to 60	12
60 to 80	4
80 to 100	1