Weather Records on 30 May 1968

357 weather records were set or tied worldwide on 30 May 1968. Highest significance: Boonton 1 SE, US.

Key Facts for 30 May 1968

On 30 May 1968, 357 weather records were set or tied at long-record stations worldwide.
86 were record highs and 91 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 337 daily.
Boonton 1 SE set a daily record precipitation of 75.2 mm (3.0 in) on 30 May 1968.
Across 165 earlier years (1818 to 2026) the same calendar date averaged 439 records.

Record Map

357 stations

357 station records on 30 May 1968 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 May 1968: highest significance records shown on the map
Station	Country	Type	Value	Significance
Boonton 1 SE	United States	Record daily precipitation	75.2 mm (3.0 in)	62 of 100 (Major)
Rosetown Cda Epf	Canada	Record daily precipitation	49.3 mm (1.9 in)	60 of 100 (Major)
Southbridge 3 SW	United States	Record daily precipitation	63.2 mm (2.5 in)	50 of 100 (Notable)
Chesterfield	United States	Record daily precipitation	62.5 mm (2.5 in)	49 of 100 (Notable)
Bainbridge 2 E	United States	Record daily precipitation	58.9 mm (2.3 in)	49 of 100 (Notable)
Charlotteburg Rsvr	United States	Record daily precipitation	90.7 mm (3.6 in)	47 of 100 (Notable)
Luiz Correia	Brazil	Record daily precipitation	80.3 mm (3.2 in)	44 of 100 (Notable)
Akkol	Kazakhstan	Record daily precipitation	32.6 mm (1.3 in)	44 of 100 (Notable)
Plymouth Pwr Substn	United States	Record daily precipitation	47.0 mm (1.9 in)	42 of 100 (Notable)
Outtrim	Australia	Record daily precipitation	33.0 mm (1.3 in)	41 of 100 (Notable)
Rosthern	Canada	Record daily precipitation	35.6 mm (1.4 in)	41 of 100 (Notable)
Lost River	Canada	Record daily precipitation	34.3 mm (1.4 in)	38 of 100 (Notable)
Tallapoosa 2 N	United States	Record daily precipitation	38.6 mm (1.5 in)	38 of 100 (Notable)
W Otis	United States	Record daily precipitation	40.4 mm (1.6 in)	38 of 100 (Notable)
Scranton	United States	Record daily precipitation	35.6 mm (1.4 in)	38 of 100 (Notable)
Chiknayakanihall	India	Record daily precipitation	38.1 mm (1.5 in)	37 of 100 (Notable)
Manchester 4 W	United States	Record daily precipitation	42.2 mm (1.7 in)	37 of 100 (Notable)
Shelburne Falls	United States	Record daily precipitation	47.2 mm (1.9 in)	37 of 100 (Notable)
Hughton	Canada	Record daily precipitation	34.3 mm (1.4 in)	36 of 100 (Notable)
Liberty 1 NE	United States	Record daily precipitation	39.4 mm (1.6 in)	36 of 100 (Notable)
Albany 3 SE	United States	Record low minimum temperature	11.7 C (53.1 F)	35 of 100 (Notable)
Chilo Meldahl Locks & Dam	United States	Record daily precipitation	33.3 mm (1.3 in)	35 of 100 (Notable)
Biggar	Canada	Record daily precipitation	55.1 mm (2.2 in)	34 of 100 (Routine)
Lake Konomoc	United States	Record daily precipitation	45.0 mm (1.8 in)	34 of 100 (Routine)
Hubbardston	United States	Record daily precipitation	36.8 mm (1.4 in)	34 of 100 (Routine)
The Pas	Canada	Record daily precipitation	25.9 mm (1.0 in)	33 of 100 (Routine)
Barkhamsted	United States	Record daily precipitation	77.0 mm (3.0 in)	33 of 100 (Routine)
Greencastle 1 W	United States	Record low maximum temperature	14.4 C (57.9 F)	33 of 100 (Routine)
Canoe Brook	United States	Record daily precipitation	71.4 mm (2.8 in)	33 of 100 (Routine)
Matamoras	United States	Record daily precipitation	38.9 mm (1.5 in)	33 of 100 (Routine)
Astana	Kazakhstan	Record daily precipitation	42.7 mm (1.7 in)	32 of 100 (Routine)
Falls Village	United States	Record daily precipitation	31.5 mm (1.2 in)	32 of 100 (Routine)
San Fidel 2 E	United States	Record high minimum temperature	17.8 C (64.0 F)	32 of 100 (Routine)
Mundau	Brazil	Record daily precipitation	43.5 mm (1.7 in)	31 of 100 (Routine)
Burlington	United States	Record daily precipitation	66.8 mm (2.6 in)	31 of 100 (Routine)
Clayton 1 SSW	United States	Record low minimum temperature	4.4 C (39.9 F)	31 of 100 (Routine)
Hawley 1 E	United States	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Outlook	Canada	Record daily precipitation	31.2 mm (1.2 in)	30 of 100 (Routine)
Ukmerge	Lithuania	Record daily precipitation	29.5 mm (1.2 in)	30 of 100 (Routine)
Ordynskoe	Russia	Record daily precipitation	29.5 mm (1.2 in)	30 of 100 (Routine)
San Fernando	United States	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Greeneville Exp STN	United States	Record low maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Barguzin	Russia	Record high minimum temperature	12.7 C (54.9 F)	29 of 100 (Routine)
Kjahta	Russia	Record high minimum temperature	18.4 C (65.1 F)	29 of 100 (Routine)
Norwich	United States	Record daily precipitation	38.1 mm (1.5 in)	29 of 100 (Routine)
Mays Mill	United States	Record daily precipitation	54.6 mm (2.1 in)	29 of 100 (Routine)
Whitestown	United States	Record low maximum temperature	16.1 C (61.0 F)	28 of 100 (Routine)
Sherburne	United States	Record daily precipitation	32.8 mm (1.3 in)	28 of 100 (Routine)
Beaver	United States	Record high minimum temperature	13.3 C (55.9 F)	28 of 100 (Routine)
Sterling	United States	Record daily precipitation	58.4 mm (2.3 in)	27 of 100 (Routine)
Long Valley	United States	Record daily precipitation	47.0 mm (1.9 in)	27 of 100 (Routine)
Yerevan	Armenia	Record low maximum temperature	14.9 C (58.8 F)	26 of 100 (Routine)
Irtyshsk	Kazakhstan	Record daily precipitation	26.4 mm (1.0 in)	26 of 100 (Routine)
Kopati(Kaupati)	India	Record daily precipitation	87.6 mm (3.4 in)	25 of 100 (Routine)
Hardwick	United States	Record daily precipitation	27.9 mm (1.1 in)	25 of 100 (Routine)
San Jon	United States	Record high maximum temperature	37.2 C (99.0 F)	25 of 100 (Routine)
Gouldsboro	United States	Record daily precipitation	46.5 mm (1.8 in)	25 of 100 (Routine)
Gumri	Armenia	Record low maximum temperature	10.7 C (51.3 F)	24 of 100 (Routine)
Aquiraz	Brazil	Record daily precipitation	39.0 mm (1.5 in)	24 of 100 (Routine)
Dundurn	Canada	Record daily precipitation	25.1 mm (1.0 in)	24 of 100 (Routine)

Counts by Type and Timescale

357 records

Records set or tied on 30 May 1968 by type: Highest daily maximum 38, Lowest daily maximum 45, Highest daily minimum 48, Lowest daily minimum 46, Heaviest daily rainfall 178, Deepest snow cover 2.

Records on 30 May 1968 by type
Record type	Records
Highest daily maximum	38
Lowest daily maximum	45
Highest daily minimum	48
Lowest daily minimum	46
Heaviest daily rainfall	178
Heaviest daily snowfall	0
Deepest snow cover	2

Records on 30 May 1968 by timescale: all-time 0, monthly 20, daily 337.

How Much Records Were Beaten By

297 broken records

Margins by which the 297 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 1968

Top 20 records on 30 May 1968 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 May 1968	Boonton 1 SE, US	daily rain	75.2 mm (3.0 in)	42.4 mm (1.7 in)	56 years	62 of 100 (Major)
30 May 1968	Rosetown Cda Epf, CA	monthly rain	49.3 mm (1.9 in)	21.1 mm (0.8 in)	18 years	60 of 100 (Major)
30 May 1968	Southbridge 3 SW, US	daily rain	63.2 mm (2.5 in)	44.4 mm (1.7 in)	20 years	50 of 100 (Notable)
30 May 1968	Chesterfield, US	daily rain	62.5 mm (2.5 in)	43.2 mm (1.7 in)	18 years	49 of 100 (Notable)
30 May 1968	Bainbridge 2 E, US	daily rain	58.9 mm (2.3 in)	36.8 mm (1.4 in)	13 years	49 of 100 (Notable)
30 May 1968	Charlotteburg Rsvr, US	monthly rain	90.7 mm (3.6 in)	8.4 mm (0.33 in)	74 years	47 of 100 (Notable)
30 May 1968	Luiz Correia, BR	daily rain	80.3 mm (3.2 in)	59.0 mm (2.3 in)	45 years	44 of 100 (Notable)
30 May 1968	Akkol, KZ	daily rain	32.6 mm (1.3 in)	16.1 mm (0.6 in)	18 years	44 of 100 (Notable)
30 May 1968	Plymouth Pwr Substn, US	daily rain	47.0 mm (1.9 in)	26.2 mm (1.0 in)	37 years	42 of 100 (Notable)
30 May 1968	Outtrim, AU	daily rain	33.0 mm (1.3 in)	13.4 mm (0.5 in)	57 years	41 of 100 (Notable)
30 May 1968	Rosthern, CA	monthly rain	35.6 mm (1.4 in)	5.6 mm (0.22 in)	54 years	41 of 100 (Notable)
30 May 1968	Lost River, CA	daily rain	34.3 mm (1.4 in)	19.1 mm (0.8 in)	19 years	38 of 100 (Notable)
30 May 1968	Tallapoosa 2 N, US	daily rain	38.6 mm (1.5 in)	15.7 mm (0.6 in)	67 years	38 of 100 (Notable)
30 May 1968	W Otis, US	daily rain	40.4 mm (1.6 in)	20.8 mm (0.8 in)	37 years	38 of 100 (Notable)
30 May 1968	Scranton, US	daily rain	35.6 mm (1.4 in)	24.7 mm (1.0 in)	15 years	38 of 100 (Notable)
30 May 1968	Chiknayakanihall, IN	daily rain	38.1 mm (1.5 in)	24.1 mm (0.9 in)	62 years	37 of 100 (Notable)
30 May 1968	Manchester 4 W, US	daily rain	42.2 mm (1.7 in)	18.6 mm (0.7 in)	52 years	37 of 100 (Notable)
30 May 1968	Shelburne Falls, US	daily rain	47.2 mm (1.9 in)	31.5 mm (1.2 in)	13 years	37 of 100 (Notable)
30 May 1968	Hughton, CA	monthly rain	34.3 mm (1.4 in)	5.1 mm (0.20 in)	45 years	36 of 100 (Notable)
30 May 1968	Liberty 1 NE, US	daily rain	39.4 mm (1.6 in)	21.9 mm (0.9 in)	21 years	36 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 1968

Records set or tied on this calendar date in each year from 1818 to 1968. 1968 had 357 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 1968-05-30: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	275
20 to 40	16
40 to 60	4
60 to 80	0
80 to 100	2