Weather Records on 31 May 1970

573 weather records were set or tied worldwide on 31 May 1970. Highest significance: Kipawa Laniel, CA.

Key Facts for 31 May 1970

On 31 May 1970, 573 weather records were set or tied at long-record stations worldwide.
152 were record highs and 63 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 27 monthly and 543 daily.
Kipawa Laniel set a monthly record daily precipitation of 77.7 mm (3.1 in) on 31 May 1970.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 437 records.

Record Map

573 stations

573 station records on 31 May 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kipawa Laniel	Canada	Record daily precipitation	77.7 mm (3.1 in)	67 of 100 (Major)
Nadiad	India	Record daily precipitation	61.0 mm (2.4 in)	65 of 100 (Major)
Sault Ste Marie Sanderson Fld	United States	Record daily precipitation	129.0 mm (5.1 in)	64 of 100 (Major)
Barud(Warud)	India	Record daily precipitation	64.1 mm (2.5 in)	63 of 100 (Major)
Malyalling	Australia	Record daily precipitation	45.5 mm (1.8 in)	62 of 100 (Major)
Greensboro	United States	Record daily precipitation	99.1 mm (3.9 in)	58 of 100 (Notable)
Carrajung Post Office	Australia	Record daily precipitation	78.7 mm (3.1 in)	55 of 100 (Notable)
Arad	Romania	Record daily precipitation	43.4 mm (1.7 in)	55 of 100 (Notable)
Newberry-Luce Co Rd Commission	United States	Record daily precipitation	91.2 mm (3.6 in)	55 of 100 (Notable)
Lac Vieux Desert	United States	Record daily precipitation	91.9 mm (3.6 in)	54 of 100 (Notable)
Pervomajskoe	Russia	Record daily precipitation	30.9 mm (1.2 in)	53 of 100 (Notable)
Munising	United States	Record daily precipitation	89.2 mm (3.5 in)	53 of 100 (Notable)
Shawano 2SSW	United States	Record daily precipitation	74.4 mm (2.9 in)	52 of 100 (Notable)
Yarrie	Australia	Record daily precipitation	45.7 mm (1.8 in)	51 of 100 (Notable)
Hancock Exp Farm	United States	Record daily precipitation	87.9 mm (3.5 in)	49 of 100 (Notable)
Dalgaranga	Australia	Record daily precipitation	41.1 mm (1.6 in)	48 of 100 (Notable)
Blackwarry	Australia	Record daily precipitation	127.0 mm (5.0 in)	48 of 100 (Notable)
Ville Marie	Canada	Record daily precipitation	52.1 mm (2.1 in)	48 of 100 (Notable)
Arkonam	India	Record daily precipitation	109.1 mm (4.3 in)	48 of 100 (Notable)
Reedsburg Wwtp	United States	Record daily precipitation	52.8 mm (2.1 in)	48 of 100 (Notable)
Cumberland	United States	Record daily precipitation	84.1 mm (3.3 in)	47 of 100 (Notable)
Himatnagar	India	Record daily precipitation	81.3 mm (3.2 in)	46 of 100 (Notable)
Neligh	United States	Record daily precipitation	58.9 mm (2.3 in)	45 of 100 (Notable)
Clinton	United States	Record daily precipitation	65.8 mm (2.6 in)	44 of 100 (Notable)
Chatham Exp Fa	United States	Record daily precipitation	42.7 mm (1.7 in)	44 of 100 (Notable)
Callignee South	Australia	Record daily precipitation	84.6 mm (3.3 in)	43 of 100 (Notable)
Hamersley	Australia	Record daily precipitation	61.0 mm (2.4 in)	42 of 100 (Notable)
Haileybury	Canada	Record daily precipitation	44.7 mm (1.8 in)	42 of 100 (Notable)
Chorkhamara	India	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
Stanton	United States	Record daily precipitation	71.1 mm (2.8 in)	42 of 100 (Notable)
N Bend SW Oregon Rgnl AP	United States	Record high maximum temperature	28.9 C (84.0 F)	42 of 100 (Notable)
Mount Edgar	Australia	Record daily precipitation	88.4 mm (3.5 in)	41 of 100 (Notable)
Erica	Australia	Record daily precipitation	41.7 mm (1.6 in)	41 of 100 (Notable)
Biscotasing	Canada	Record daily precipitation	41.9 mm (1.6 in)	41 of 100 (Notable)
George W 2 SSW	United States	Record daily precipitation	65.0 mm (2.6 in)	41 of 100 (Notable)
Bamboo Creek	Australia	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Cooya Pooya	Australia	Record daily precipitation	91.2 mm (3.6 in)	40 of 100 (Notable)
Moulyinning	Australia	Record daily precipitation	32.8 mm (1.3 in)	40 of 100 (Notable)
Brewton 3 SSE	United States	Record daily precipitation	89.2 mm (3.5 in)	40 of 100 (Notable)
Coffee Springs 2 NW	United States	Record daily precipitation	73.7 mm (2.9 in)	40 of 100 (Notable)
Vacaville	United States	Record high minimum temperature	23.3 C (73.9 F)	39 of 100 (Notable)
Muccan	Australia	Record daily precipitation	41.9 mm (1.6 in)	38 of 100 (Notable)
Mount Florance	Australia	Record daily precipitation	61.0 mm (2.4 in)	38 of 100 (Notable)
Madalya	Australia	Record daily precipitation	47.5 mm (1.9 in)	38 of 100 (Notable)
Edalabad	India	Record daily precipitation	32.0 mm (1.3 in)	38 of 100 (Notable)
Steuben	United States	Record daily precipitation	76.7 mm (3.0 in)	38 of 100 (Notable)
Kwobrup	Australia	Record daily precipitation	47.5 mm (1.9 in)	37 of 100 (Notable)
Buchan	Australia	Record daily precipitation	48.8 mm (1.9 in)	37 of 100 (Notable)
Sussex	Canada	Record high minimum temperature	18.9 C (66.0 F)	37 of 100 (Notable)
Grover 10 W	United States	Record low minimum temperature	-6.1 C (21.0 F)	37 of 100 (Notable)
Wisconsin Dells Wwtp	United States	Record daily precipitation	34.3 mm (1.4 in)	37 of 100 (Notable)
Mandvi	India	Record daily precipitation	28.0 mm (1.1 in)	36 of 100 (Notable)
Reedsport	United States	Record high maximum temperature	32.2 C (90.0 F)	36 of 100 (Notable)
Mangaroon	Australia	Record daily precipitation	67.3 mm (2.6 in)	35 of 100 (Notable)
Bengworden	Australia	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Sironcha	India	Record daily precipitation	43.0 mm (1.7 in)	35 of 100 (Notable)
Brownsville	United States	Record daily precipitation	60.2 mm (2.4 in)	35 of 100 (Notable)
Nairibin	Australia	Record daily precipitation	38.1 mm (1.5 in)	34 of 100 (Routine)
Brooks Farnham Rch	United States	Record high minimum temperature	22.2 C (72.0 F)	34 of 100 (Routine)
Benton Harbor AP	United States	Record high minimum temperature	21.1 C (70.0 F)	34 of 100 (Routine)

Counts by Type and Timescale

573 records

Records set or tied on 31 May 1970 by type: Highest daily maximum 62, Lowest daily maximum 43, Highest daily minimum 90, Lowest daily minimum 20, Heaviest daily rainfall 353, Heaviest daily snowfall 4, Deepest snow cover 1.

Records on 31 May 1970 by type
Record type	Records
Highest daily maximum	62
Lowest daily maximum	43
Highest daily minimum	90
Lowest daily minimum	20
Heaviest daily rainfall	353
Heaviest daily snowfall	4
Deepest snow cover	1

Records on 31 May 1970 by timescale: all-time 3, monthly 27, daily 543.

How Much Records Were Beaten By

501 broken records

Margins by which the 501 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 300.0. Ties are not counted.

Top 20 by Significance

31 May 1970

Top 20 records on 31 May 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 1970	Kipawa Laniel, CA	monthly rain	77.7 mm (3.1 in)	36.0 mm (1.4 in)	41 years	67 of 100 (Major)
31 May 1970	Nadiad, IN	monthly rain	61.0 mm (2.4 in)	26.7 mm (1.1 in)	53 years	65 of 100 (Major)
31 May 1970	Sault Ste Marie Sanderson Fld, US	all-time rain	129.0 mm (5.1 in)	68.3 mm (2.7 in)	0 years	64 of 100 (Major)
31 May 1970	Barud(Warud), IN	daily rain	64.1 mm (2.5 in)	49.6 mm (2.0 in)	53 years	63 of 100 (Major)
31 May 1970	Malyalling, AU	daily rain	45.5 mm (1.8 in)	36.9 mm (1.5 in)	55 years	62 of 100 (Major)
31 May 1970	Greensboro, US	daily rain	99.1 mm (3.9 in)	80.0 mm (3.1 in)	36 years	58 of 100 (Notable)
31 May 1970	Carrajung Post Office, AU	daily rain	78.7 mm (3.1 in)	33.0 mm (1.3 in)	56 years	55 of 100 (Notable)
31 May 1970	Arad, RO	daily rain	43.4 mm (1.7 in)	14.4 mm (0.6 in)	87 years	55 of 100 (Notable)
31 May 1970	Newberry-Luce Co Rd Commission, US	monthly rain	91.2 mm (3.6 in)	28.0 mm (1.1 in)	10 years	55 of 100 (Notable)
31 May 1970	Lac Vieux Desert, US	monthly rain	91.9 mm (3.6 in)	32.5 mm (1.3 in)	6 years	54 of 100 (Notable)
31 May 1970	Pervomajskoe, RU	daily rain	30.9 mm (1.2 in)	15.4 mm (0.6 in)	29 years	53 of 100 (Notable)
31 May 1970	Munising, US	all-time rain	89.2 mm (3.5 in)	13.0 mm (0.5 in)	36 years	53 of 100 (Notable)
31 May 1970	Shawano 2SSW, US	daily rain	74.4 mm (2.9 in)	46.5 mm (1.8 in)	17 years	52 of 100 (Notable)
31 May 1970	Yarrie, AU	daily rain	45.7 mm (1.8 in)	45.7 mm (1.8 in)	70 years	51 of 100 (Notable)
31 May 1970	Hancock Exp Farm, US	monthly rain	87.9 mm (3.5 in)	21.9 mm (0.9 in)	44 years	49 of 100 (Notable)
31 May 1970	Dalgaranga, AU	daily rain	41.1 mm (1.6 in)	30.2 mm (1.2 in)	40 years	48 of 100 (Notable)
31 May 1970	Blackwarry, AU	daily rain	127.0 mm (5.0 in)	104.1 mm (4.1 in)	0 years	48 of 100 (Notable)
31 May 1970	Ville Marie, CA	daily rain	52.1 mm (2.1 in)	22.1 mm (0.9 in)	44 years	48 of 100 (Notable)
31 May 1970	Arkonam, IN	daily rain	109.1 mm (4.3 in)	83.7 mm (3.3 in)	12 years	48 of 100 (Notable)
31 May 1970	Reedsburg Wwtp, US	daily rain	52.8 mm (2.1 in)	39.6 mm (1.6 in)	11 years	48 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

1811 to 1970

Records set or tied on this calendar date in each year from 1811 to 1970. 1970 had 573 records.

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

Records on 05-31 in each year
Year	Records
1811	1
1818	3
1827	1
1836	2
1845	1
1847	1
1853	2
1855	2
1858	1
1864	2
1865	1
1866	1
1867	1
1868	4
1869	1
1871	2
1873	3
1874	1
1877	1
1878	2
1879	2
1880	3
1882	1
1883	1
1885	1
1888	1
1889	2
1890	1
1892	1
1893	4
1894	2
1895	8
1897	5
1898	7
1899	1
1900	2
1901	9
1902	9
1903	17
1904	19
1905	7
1906	11
1907	20
1908	12
1909	8
1910	26
1911	20
1912	15
1913	83
1914	20
1915	23
1916	23
1917	13
1918	20
1919	44
1920	46
1921	157
1922	49
1923	98
1924	152
1925	226
1926	228
1927	121
1928	67
1929	246
1930	612
1931	223
1932	181
1933	397
1934	782
1935	156
1936	559
1937	462
1938	424
1939	461
1940	383
1941	410
1942	364
1943	552
1944	372
1945	457
1946	380
1947	439
1948	295
1949	303
1950	467
1951	640
1952	374
1953	654
1954	445
1955	534
1956	632
1957	304
1958	429
1959	459
1960	247
1961	472
1962	565
1963	354
1964	1,237
1965	494
1966	601
1967	987
1968	276
1969	555
1970	573
1971	714
1972	1,127
1973	418
1974	473
1975	797
1976	435
1977	605
1978	873
1979	915
1980	517
1981	775
1982	817
1983	1,494
1984	2,047
1985	790
1986	1,365
1987	822
1988	1,255
1989	912
1990	900
1991	1,381
1992	1,031
1993	982
1994	776
1995	693
1996	946
1997	1,163
1998	1,215
1999	790
2000	1,172
2001	1,047
2002	1,162
2003	831
2004	1,071
2005	724
2006	1,045
2007	793
2008	809
2009	570
2010	741
2011	1,498
2012	764
2013	1,100
2014	565
2015	704
2016	402
2017	440
2018	1,211
2019	420
2020	673
2021	834
2022	902
2023	454
2024	809
2025	1,204
2026	536

Download the Data

Data for records on 1970-05-31: 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 50	490
50 to 100	9
100 to 150	1
150 to 200	0
200 to 250	0
250 to 300	1