Weather Records on 31 May 1973

418 weather records were set or tied worldwide on 31 May 1973. Highest significance: Hiasen I Sigdal, NO.

Key Facts for 31 May 1973

On 31 May 1973, 418 weather records were set or tied at long-record stations worldwide.
125 were record highs and 82 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 19 monthly and 399 daily.
Hiasen I Sigdal set a daily record precipitation of 40.6 mm (1.6 in) on 31 May 1973.
Across 161 earlier years (1811 to 2026) the same calendar date averaged 438 records.

Record Map

418 stations

418 station records on 31 May 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 May 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hiasen I Sigdal	Norway	Record daily precipitation	40.6 mm (1.6 in)	54 of 100 (Notable)
Ermakovskoe	Russia	Record daily precipitation	56.1 mm (2.2 in)	54 of 100 (Notable)
Ocala	United States	Record daily precipitation	91.9 mm (3.6 in)	51 of 100 (Notable)
Lost River	Canada	Record daily precipitation	47.8 mm (1.9 in)	50 of 100 (Notable)
Bjornholt	Norway	Record daily precipitation	39.5 mm (1.6 in)	48 of 100 (Notable)
Beito	Norway	Record daily precipitation	47.0 mm (1.9 in)	48 of 100 (Notable)
Tuddal	Norway	Record daily precipitation	32.1 mm (1.3 in)	48 of 100 (Notable)
Liman	Russia	Record daily precipitation	44.1 mm (1.7 in)	48 of 100 (Notable)
Rauland	Norway	Record daily precipitation	31.6 mm (1.2 in)	47 of 100 (Notable)
Nikolaev	Ukraine	Record daily precipitation	33.0 mm (1.3 in)	47 of 100 (Notable)
Vitoria Aerodromo	Spain	Record daily precipitation	37.5 mm (1.5 in)	46 of 100 (Notable)
Chatillon-Sur-Seine	France	Record daily precipitation	34.4 mm (1.4 in)	44 of 100 (Notable)
Lennoxville	Canada	Record daily precipitation	31.0 mm (1.2 in)	40 of 100 (Notable)
Syracuse 1NE	United States	Record low minimum temperature	1.7 C (35.1 F)	40 of 100 (Notable)
Lifjell	Norway	Record daily precipitation	29.5 mm (1.2 in)	39 of 100 (Notable)
Caruaru	Brazil	Record daily precipitation	97.8 mm (3.9 in)	35 of 100 (Notable)
Fort St James	Canada	Record low maximum temperature	6.1 C (43.0 F)	35 of 100 (Notable)
Cuatro Cienegas (Smn)	Mexico	Record daily precipitation	25.9 mm (1.0 in)	35 of 100 (Notable)
Cuautla (Smn)	Mexico	Record high minimum temperature	23.9 C (75.0 F)	35 of 100 (Notable)
Abjorsbraten	Norway	Record daily precipitation	27.7 mm (1.1 in)	35 of 100 (Notable)
Roosevelt 1 S	United States	Record low minimum temperature	7.8 C (46.0 F)	35 of 100 (Notable)
Gloversville	United States	Record daily precipitation	29.0 mm (1.1 in)	35 of 100 (Notable)
Aragac Visokogornaya	Armenia	Record low minimum temperature	-12.3 C (9.9 F)	34 of 100 (Routine)
Rjukan	Norway	Record daily precipitation	37.5 mm (1.5 in)	34 of 100 (Routine)
Torrevieja	Spain	Record high minimum temperature	24.0 C (75.2 F)	34 of 100 (Routine)
Lamar	United States	Record low minimum temperature	3.3 C (37.9 F)	34 of 100 (Routine)
Charters Towers Post Office	Australia	Record high minimum temperature	19.3 C (66.7 F)	32 of 100 (Routine)
Nogales	United States	Record high minimum temperature	19.4 C (66.9 F)	32 of 100 (Routine)
Elkhart	United States	Record low minimum temperature	4.4 C (39.9 F)	32 of 100 (Routine)
Leoti	United States	Record low minimum temperature	3.3 C (37.9 F)	32 of 100 (Routine)
Beaver	United States	Record low minimum temperature	6.1 C (43.0 F)	32 of 100 (Routine)
Kenton	United States	Record low minimum temperature	1.1 C (34.0 F)	32 of 100 (Routine)
Melbourne Regional Office	Australia	Record high minimum temperature	13.5 C (56.3 F)	31 of 100 (Routine)
Kelvin	United States	Record daily precipitation	28.2 mm (1.1 in)	31 of 100 (Routine)
Luling	United States	Record low minimum temperature	14.4 C (57.9 F)	31 of 100 (Routine)
Jesus del Monte	Mexico	Record low maximum temperature	15.0 C (59.0 F)	30 of 100 (Routine)
Nevada City	United States	Record high minimum temperature	13.3 C (55.9 F)	30 of 100 (Routine)
Desoto City 8 SW	United States	Record daily precipitation	55.9 mm (2.2 in)	30 of 100 (Routine)
Hammon 3 SSW	United States	Record daily precipitation	29.5 mm (1.2 in)	30 of 100 (Routine)
Hooker	United States	Record low minimum temperature	5.0 C (41.0 F)	30 of 100 (Routine)
Tipton 4S Mesonet	United States	Record daily precipitation	81.3 mm (3.2 in)	30 of 100 (Routine)
Union City 3 SE	United States	Record daily precipitation	62.2 mm (2.4 in)	30 of 100 (Routine)
Plant City	United States	Record daily precipitation	49.5 mm (1.9 in)	29 of 100 (Routine)
Healy	United States	Record low minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
Canon City	United States	Record low maximum temperature	10.0 C (50.0 F)	28 of 100 (Routine)
Idaho Springs	United States	Record low minimum temperature	-1.7 C (28.9 F)	28 of 100 (Routine)
Flatonia 4SE	United States	Record low minimum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Port Lincoln	Australia	Record high minimum temperature	18.6 C (65.5 F)	27 of 100 (Routine)
Barrage Lac Morin	Canada	Record daily precipitation	32.0 mm (1.3 in)	27 of 100 (Routine)
Youngs Siding	Australia	Record daily precipitation	30.0 mm (1.2 in)	26 of 100 (Routine)
Port Lincoln	Australia	Record high maximum temperature	22.6 C (72.7 F)	26 of 100 (Routine)
Roy	United States	Record low minimum temperature	2.8 C (37.0 F)	26 of 100 (Routine)
Anadarko 3 E	United States	Record daily precipitation	45.2 mm (1.8 in)	26 of 100 (Routine)
Goodwell Rsch STN	United States	Record low minimum temperature	4.4 C (39.9 F)	26 of 100 (Routine)
Okemah	United States	Record daily precipitation	50.8 mm (2.0 in)	26 of 100 (Routine)
Okmulgee Wtr Wks	United States	Record daily precipitation	65.0 mm (2.6 in)	26 of 100 (Routine)
Catus	France	Record daily precipitation	35.9 mm (1.4 in)	25 of 100 (Routine)
Tryvasshogda	Norway	Record daily precipitation	29.0 mm (1.1 in)	25 of 100 (Routine)
Johnson 11 ESE	United States	Record low minimum temperature	4.4 C (39.9 F)	25 of 100 (Routine)
Orovada 3 W	United States	Record high minimum temperature	14.4 C (57.9 F)	25 of 100 (Routine)

Counts by Type and Timescale

418 records

Records set or tied on 31 May 1973 by type: Highest daily maximum 36, Lowest daily maximum 24, Highest daily minimum 89, Lowest daily minimum 58, Heaviest daily rainfall 210, Heaviest daily snowfall 1.

Records on 31 May 1973 by type
Record type	Records
Highest daily maximum	36
Lowest daily maximum	24
Highest daily minimum	89
Lowest daily minimum	58
Heaviest daily rainfall	210
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 31 May 1973 by timescale: all-time 0, monthly 19, daily 399.

How Much Records Were Beaten By

355 broken records

Margins by which the 355 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 44.4. Ties are not counted.

Top 20 by Significance

31 May 1973

Top 20 records on 31 May 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 May 1973	Hiasen I Sigdal, NO	daily rain	40.6 mm (1.6 in)	20.7 mm (0.8 in)	56 years	54 of 100 (Notable)
31 May 1973	Ermakovskoe, RU	monthly rain	56.1 mm (2.2 in)	27.1 mm (1.1 in)	4 years	54 of 100 (Notable)
31 May 1973	Ocala, US	daily rain	91.9 mm (3.6 in)	44.4 mm (1.7 in)	54 years	51 of 100 (Notable)
31 May 1973	Lost River, CA	daily rain	47.8 mm (1.9 in)	24.4 mm (1.0 in)	32 years	50 of 100 (Notable)
31 May 1973	Bjornholt, NO	daily rain	39.5 mm (1.6 in)	17.3 mm (0.7 in)	63 years	48 of 100 (Notable)
31 May 1973	Beito, NO	daily rain	47.0 mm (1.9 in)	32.1 mm (1.3 in)	4 years	48 of 100 (Notable)
31 May 1973	Tuddal, NO	daily rain	32.1 mm (1.3 in)	12.5 mm (0.5 in)	71 years	48 of 100 (Notable)
31 May 1973	Liman, RU	daily rain	44.1 mm (1.7 in)	27.1 mm (1.1 in)	20 years	48 of 100 (Notable)
31 May 1973	Rauland, NO	daily rain	31.6 mm (1.2 in)	11.6 mm (0.5 in)	64 years	47 of 100 (Notable)
31 May 1973	Nikolaev, UA	daily rain	33.0 mm (1.3 in)	17.0 mm (0.7 in)	47 years	47 of 100 (Notable)
31 May 1973	Vitoria Aerodromo, ES	daily rain	37.5 mm (1.5 in)	28.6 mm (1.1 in)	10 years	46 of 100 (Notable)
31 May 1973	Chatillon-Sur-Seine, FR	daily rain	34.4 mm (1.4 in)	13.4 mm (0.5 in)	51 years	44 of 100 (Notable)
31 May 1973	Lennoxville, CA	daily rain	31.0 mm (1.2 in)	13.5 mm (0.5 in)	42 years	40 of 100 (Notable)
31 May 1973	Syracuse 1NE, US	daily low min	1.7 C (35.1 F)	4.4 C (7.9 F)	79 years	40 of 100 (Notable)
31 May 1973	Lifjell, NO	daily rain	29.5 mm (1.2 in)	6.9 mm (0.27 in)	74 years	39 of 100 (Notable)
31 May 1973	Caruaru, BR	monthly rain	97.8 mm (3.9 in)	7.8 mm (0.31 in)	44 years	35 of 100 (Notable)
31 May 1973	Fort St James, CA	daily low max	6.1 C (43.0 F)	2.8 C (5.0 F)	73 years	35 of 100 (Notable)
31 May 1973	Cuatro Cienegas (Smn), MX	daily rain	25.9 mm (1.0 in)	25.1 mm (1.0 in)	0 years	35 of 100 (Notable)
31 May 1973	Cuautla (Smn), MX	monthly high min	23.9 C (75.0 F)	1.7 C (3.1 F)	46 years	35 of 100 (Notable)
31 May 1973	Abjorsbraten, NO	daily rain	27.7 mm (1.1 in)	14.3 mm (0.6 in)	4 years	35 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 1973

Records set or tied on this calendar date in each year from 1811 to 1973. 1973 had 418 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 1973-05-31: 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).

Histogram of margins by which records were beaten on 31 May 1973
Margin	Records
0 to 10	305
10 to 20	31
20 to 30	14
30 to 40	3
40 to 50	2