Weather Records on 31 May 1974

473 weather records were set or tied worldwide on 31 May 1974. Highest significance: Uruapan (Smn), MX.

Key Facts for 31 May 1974

On 31 May 1974, 473 weather records were set or tied at long-record stations worldwide.
120 were record highs and 115 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 16 monthly and 456 daily.
Uruapan (Smn) set a monthly record daily precipitation of 84.3 mm (3.3 in) on 31 May 1974.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 437 records.

Record Map

473 stations

473 station records on 31 May 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Uruapan (Smn)	Mexico	Record daily precipitation	84.3 mm (3.3 in)	56 of 100 (Notable)
High Brg Lock 7	United States	Record daily precipitation	49.8 mm (2.0 in)	55 of 100 (Notable)
Palmyra	United States	Record daily precipitation	110.2 mm (4.3 in)	55 of 100 (Notable)
Paris 5 S	United States	Record daily precipitation	55.9 mm (2.2 in)	54 of 100 (Notable)
Barrage Gouin	Canada	Record daily precipitation	35.6 mm (1.4 in)	52 of 100 (Notable)
Mt Ayr	United States	Record daily precipitation	78.5 mm (3.1 in)	52 of 100 (Notable)
Centralia	United States	Record daily precipitation	72.4 mm (2.9 in)	52 of 100 (Notable)
Santa Helena (Mariquita)	Brazil	Record daily precipitation	38.6 mm (1.5 in)	51 of 100 (Notable)
Lake City 2 SE	United States	Record daily precipitation	81.3 mm (3.2 in)	51 of 100 (Notable)
Fulton	United States	Record daily precipitation	67.6 mm (2.7 in)	50 of 100 (Notable)
Alton - Melvin Price L&D	United States	Record daily precipitation	96.3 mm (3.8 in)	49 of 100 (Notable)
Mt Olive 1 E	United States	Record daily precipitation	83.1 mm (3.3 in)	48 of 100 (Notable)
Canton L&D 20	United States	Record daily precipitation	58.2 mm (2.3 in)	48 of 100 (Notable)
Troy	United States	Record daily precipitation	70.6 mm (2.8 in)	48 of 100 (Notable)
Salvisa Lock 6	United States	Record daily precipitation	62.0 mm (2.4 in)	47 of 100 (Notable)
Mexico	United States	Record daily precipitation	113.8 mm (4.5 in)	47 of 100 (Notable)
Poset	Russia	Record daily precipitation	51.8 mm (2.0 in)	46 of 100 (Notable)
Griggsville	United States	Record daily precipitation	49.5 mm (1.9 in)	46 of 100 (Notable)
Williamstown	United States	Record daily precipitation	36.8 mm (1.4 in)	46 of 100 (Notable)
Paoli	United States	Record daily precipitation	50.8 mm (2.0 in)	45 of 100 (Notable)
Taylorsville 2SW	United States	Record daily precipitation	54.6 mm (2.1 in)	44 of 100 (Notable)
Bowling Green 1 E	United States	Record daily precipitation	110.5 mm (4.4 in)	44 of 100 (Notable)
Middlesboro Fire Dept	United States	Record daily precipitation	47.0 mm (1.9 in)	43 of 100 (Notable)
Quincy Dam 21	United States	Record daily precipitation	53.3 mm (2.1 in)	41 of 100 (Notable)
Edina	United States	Record daily precipitation	63.5 mm (2.5 in)	41 of 100 (Notable)
Tapoco	United States	Record daily precipitation	80.0 mm (3.1 in)	41 of 100 (Notable)
Cascavel	Brazil	Record daily precipitation	81.6 mm (3.2 in)	40 of 100 (Notable)
Barry	United States	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Danville	United States	Record daily precipitation	63.5 mm (2.5 in)	40 of 100 (Notable)
Port Hastings	Canada	Record low minimum temperature	-1.1 C (30.0 F)	39 of 100 (Notable)
Carmi 6 NW	United States	Record daily precipitation	67.8 mm (2.7 in)	39 of 100 (Notable)
Lockport Lock 2	United States	Record daily precipitation	64.0 mm (2.5 in)	39 of 100 (Notable)
Elsberry 1 S	United States	Record daily precipitation	45.7 mm (1.8 in)	39 of 100 (Notable)
St Charles Elm Pt	United States	Record daily precipitation	62.5 mm (2.5 in)	39 of 100 (Notable)
Warrenton 1 N	United States	Record daily precipitation	54.6 mm (2.1 in)	39 of 100 (Notable)
Monticello Muni AP	United States	Record high minimum temperature	22.8 C (73.0 F)	39 of 100 (Notable)
Edwardsville 2 W	United States	Record daily precipitation	71.1 mm (2.8 in)	37 of 100 (Notable)
Greenville	United States	Record daily precipitation	71.6 mm (2.8 in)	36 of 100 (Notable)
Springfield 2W	United States	Record daily precipitation	36.1 mm (1.4 in)	36 of 100 (Notable)
Vandalia	United States	Record daily precipitation	129.8 mm (5.1 in)	36 of 100 (Notable)
Alvin	United States	Record daily precipitation	96.5 mm (3.8 in)	36 of 100 (Notable)
Berlin-Dahlem	Germany	Record low minimum temperature	4.3 C (39.7 F)	35 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	77.7 mm (3.1 in)	35 of 100 (Notable)
Parkersburg	United States	Record daily precipitation	31.2 mm (1.2 in)	35 of 100 (Notable)
Nappan Cda	Canada	Record low minimum temperature	-1.7 C (28.9 F)	34 of 100 (Routine)
Keene 1 WSW	United States	Record daily precipitation	52.8 mm (2.1 in)	34 of 100 (Routine)
Hannibal Wtr Wks	United States	Record daily precipitation	54.9 mm (2.2 in)	34 of 100 (Routine)
Weeping Water	United States	Record daily precipitation	49.3 mm (1.9 in)	34 of 100 (Routine)
Lexington Bluegrass AP	United States	Record daily precipitation	30.0 mm (1.2 in)	34 of 100 (Routine)
Evergreen	United States	Record high minimum temperature	22.8 C (73.0 F)	33 of 100 (Routine)
Mt Sterling	United States	Record daily precipitation	36.6 mm (1.4 in)	33 of 100 (Routine)
Calhoun 2 N	United States	Record high minimum temperature	24.4 C (75.9 F)	33 of 100 (Routine)
Batesville	United States	Record high minimum temperature	22.8 C (73.0 F)	33 of 100 (Routine)
Memphis	United States	Record daily precipitation	46.5 mm (1.8 in)	33 of 100 (Routine)
Nixon	United States	Record daily precipitation	73.2 mm (2.9 in)	33 of 100 (Routine)
Lake Providence	United States	Record high minimum temperature	23.9 C (75.0 F)	32 of 100 (Routine)
Effingham 3SW	United States	Record daily precipitation	63.2 mm (2.5 in)	31 of 100 (Routine)
Greenup 3SE	United States	Record daily precipitation	49.3 mm (1.9 in)	31 of 100 (Routine)
Chillicothe 2S	United States	Record daily precipitation	46.5 mm (1.8 in)	31 of 100 (Routine)
Martinsdale 3 NNW	United States	Record low minimum temperature	-1.1 C (30.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

473 records

Records set or tied on 31 May 1974 by type: Highest daily maximum 21, Lowest daily maximum 17, Highest daily minimum 99, Lowest daily minimum 98, Heaviest daily rainfall 236, Deepest snow cover 2.

Records on 31 May 1974 by type
Record type	Records
Highest daily maximum	21
Lowest daily maximum	17
Highest daily minimum	99
Lowest daily minimum	98
Heaviest daily rainfall	236
Heaviest daily snowfall	0
Deepest snow cover	2

Records on 31 May 1974 by timescale: all-time 1, monthly 16, daily 456.

How Much Records Were Beaten By

383 broken records

Margins by which the 383 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 838.0. Ties are not counted.

Top 20 by Significance

31 May 1974

Top 20 records on 31 May 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 1974	Uruapan (Smn), MX	monthly rain	84.3 mm (3.3 in)	28.4 mm (1.1 in)	47 years	56 of 100 (Notable)
31 May 1974	High Brg Lock 7, US	daily rain	49.8 mm (2.0 in)	29.0 mm (1.1 in)	68 years	55 of 100 (Notable)
31 May 1974	Palmyra, US	monthly rain	110.2 mm (4.3 in)	16.2 mm (0.6 in)	81 years	55 of 100 (Notable)
31 May 1974	Paris 5 S, US	daily rain	55.9 mm (2.2 in)	28.0 mm (1.1 in)	80 years	54 of 100 (Notable)
31 May 1974	Barrage Gouin, CA	daily rain	35.6 mm (1.4 in)	20.1 mm (0.8 in)	43 years	52 of 100 (Notable)
31 May 1974	Mt Ayr, US	daily rain	78.5 mm (3.1 in)	50.6 mm (2.0 in)	20 years	52 of 100 (Notable)
31 May 1974	Centralia, US	daily rain	72.4 mm (2.9 in)	52.3 mm (2.1 in)	32 years	52 of 100 (Notable)
31 May 1974	Santa Helena (Mariquita), BR	daily rain	38.6 mm (1.5 in)	38.6 mm (1.5 in)	36 years	51 of 100 (Notable)
31 May 1974	Lake City 2 SE, US	daily rain	81.3 mm (3.2 in)	63.5 mm (2.5 in)	28 years	51 of 100 (Notable)
31 May 1974	Fulton, US	daily rain	67.6 mm (2.7 in)	26.5 mm (1.0 in)	71 years	50 of 100 (Notable)
31 May 1974	Alton - Melvin Price L&D, US	monthly rain	96.3 mm (3.8 in)	27.7 mm (1.1 in)	30 years	49 of 100 (Notable)
31 May 1974	Mt Olive 1 E, US	daily rain	83.1 mm (3.3 in)	67.4 mm (2.7 in)	17 years	48 of 100 (Notable)
31 May 1974	Canton L&D 20, US	daily rain	58.2 mm (2.3 in)	38.6 mm (1.5 in)	41 years	48 of 100 (Notable)
31 May 1974	Troy, US	daily rain	70.6 mm (2.8 in)	45.2 mm (1.8 in)	17 years	48 of 100 (Notable)
31 May 1974	Salvisa Lock 6, US	daily rain	62.0 mm (2.4 in)	46.0 mm (1.8 in)	1 year	47 of 100 (Notable)
31 May 1974	Mexico, US	monthly rain	113.8 mm (4.5 in)	22.4 mm (0.9 in)	43 years	47 of 100 (Notable)
31 May 1974	Poset, RU	daily rain	51.8 mm (2.0 in)	30.7 mm (1.2 in)	29 years	46 of 100 (Notable)
31 May 1974	Griggsville, US	daily rain	49.5 mm (1.9 in)	22.8 mm (0.9 in)	71 years	46 of 100 (Notable)
31 May 1974	Williamstown, US	daily rain	36.8 mm (1.4 in)	21.6 mm (0.9 in)	71 years	46 of 100 (Notable)
31 May 1974	Paoli, US	daily rain	50.8 mm (2.0 in)	25.7 mm (1.0 in)	56 years	45 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 1974

Records set or tied on this calendar date in each year from 1811 to 1974. 1974 had 473 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 1974-05-31: 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 200	382
200 to 400	0
400 to 600	0
600 to 800	0
800 to 1000	1