Weather Records on 31 March 1973

755 weather records were set or tied worldwide on 31 March 1973. Highest significance: Atlantic 1 NE, US.

Key Facts for 31 March 1973

On 31 March 1973, 755 weather records were set or tied at long-record stations worldwide.
114 were record highs and 69 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 28 monthly and 726 daily.
Atlantic 1 NE set a daily record precipitation of 51.1 mm (2.0 in) on 31 March 1973.
Across 155 earlier years (1808 to 2026) the same calendar date averaged 505 records.

Record Map

755 stations

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

Weather records on 31 March 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Atlantic 1 NE	United States	Record daily precipitation	51.1 mm (2.0 in)	65 of 100 (Major)
Winterset 4N	United States	Record daily precipitation	45.7 mm (1.8 in)	61 of 100 (Major)
Indianola 1SW	United States	Record daily precipitation	50.3 mm (2.0 in)	60 of 100 (Major)
Cimarron 4 SW	United States	Record snow depth	35.6 cm (14.0 in)	59 of 100 (Notable)
Sublette 7WSW	United States	Record daily precipitation	39.4 mm (1.6 in)	57 of 100 (Notable)
Clayton Muni Air Pk	United States	Record snow depth	25.4 cm (10.0 in)	56 of 100 (Notable)
Westmoreland	United States	Record daily precipitation	57.4 mm (2.3 in)	55 of 100 (Notable)
Wondai Post Office	Australia	Record daily precipitation	99.1 mm (3.9 in)	53 of 100 (Notable)
Bedford	United States	Record daily precipitation	44.7 mm (1.8 in)	53 of 100 (Notable)
Santa Sofia	Brazil	Record daily precipitation	91.0 mm (3.6 in)	52 of 100 (Notable)
Shenandoah	United States	Record daily precipitation	45.7 mm (1.8 in)	52 of 100 (Notable)
Hays 1 S	United States	Record daily precipitation	39.4 mm (1.6 in)	52 of 100 (Notable)
McPherson	United States	Record daily precipitation	55.9 mm (2.2 in)	51 of 100 (Notable)
Mt Hope	United States	Record daily precipitation	58.9 mm (2.3 in)	51 of 100 (Notable)
Cimarron	United States	Record daily precipitation	46.7 mm (1.8 in)	50 of 100 (Notable)
Covert	United States	Record daily precipitation	43.7 mm (1.7 in)	50 of 100 (Notable)
Wakefield 4 W	United States	Record daily precipitation	36.1 mm (1.4 in)	50 of 100 (Notable)
Syracuse	United States	Record daily precipitation	37.6 mm (1.5 in)	50 of 100 (Notable)
Marlborough Post Office	Australia	Record daily precipitation	102.9 mm (4.1 in)	49 of 100 (Notable)
Versailles	United States	Record daily precipitation	45.7 mm (1.8 in)	49 of 100 (Notable)
Auburn 5 ESE	United States	Record daily precipitation	45.7 mm (1.8 in)	49 of 100 (Notable)
Alton 1 W	United States	Record daily precipitation	35.8 mm (1.4 in)	48 of 100 (Notable)
Ellis	United States	Record daily precipitation	48.5 mm (1.9 in)	48 of 100 (Notable)
Phillipsburg 1 SSE	United States	Record daily precipitation	31.5 mm (1.2 in)	48 of 100 (Notable)
Edgerton	United States	Record daily precipitation	52.1 mm (2.1 in)	48 of 100 (Notable)
Bluff Post Office	Australia	Record daily precipitation	58.2 mm (2.3 in)	47 of 100 (Notable)
Beloit	United States	Record daily precipitation	25.9 mm (1.0 in)	47 of 100 (Notable)
Bonner Springs	United States	Record daily precipitation	52.8 mm (2.1 in)	47 of 100 (Notable)
Meade	United States	Record daily precipitation	47.2 mm (1.9 in)	47 of 100 (Notable)
Valmora	United States	Record snow depth	22.9 cm (9.0 in)	47 of 100 (Notable)
Evergreen	United States	Record daily precipitation	142.2 mm (5.6 in)	46 of 100 (Notable)
Alexander	United States	Record daily precipitation	42.7 mm (1.7 in)	46 of 100 (Notable)
Kingman	United States	Record daily precipitation	50.3 mm (2.0 in)	46 of 100 (Notable)
Lindsborg 3E	United States	Record daily precipitation	48.3 mm (1.9 in)	45 of 100 (Notable)
Plainville 4WNW	United States	Record daily precipitation	38.9 mm (1.5 in)	45 of 100 (Notable)
Densmore 2N	United States	Record daily precipitation	36.1 mm (1.4 in)	44 of 100 (Notable)
Hudson	United States	Record daily precipitation	42.7 mm (1.7 in)	44 of 100 (Notable)
Newton	United States	Record daily precipitation	40.9 mm (1.6 in)	44 of 100 (Notable)
Ft Washakie 1 SE	United States	Record snow depth	45.7 cm (18.0 in)	44 of 100 (Notable)
Moline Quad City Intl AP	United States	Record daily precipitation	49.5 mm (1.9 in)	44 of 100 (Notable)
Union Springs 9 S	United States	Record daily precipitation	136.7 mm (5.4 in)	43 of 100 (Notable)
Ellsworth	United States	Record daily precipitation	51.3 mm (2.0 in)	43 of 100 (Notable)
Enterprise	United States	Record daily precipitation	35.3 mm (1.4 in)	43 of 100 (Notable)
Loretta 1W	United States	Record daily precipitation	41.9 mm (1.6 in)	43 of 100 (Notable)
Pratt 3NW	United States	Record daily precipitation	47.2 mm (1.9 in)	43 of 100 (Notable)
Smith Ctr	United States	Record daily precipitation	27.9 mm (1.1 in)	43 of 100 (Notable)
Banksia Station	Australia	Record daily precipitation	106.2 mm (4.2 in)	42 of 100 (Notable)
Boonara	Australia	Record daily precipitation	41.9 mm (1.6 in)	42 of 100 (Notable)
Creston 2 SW	United States	Record daily precipitation	33.3 mm (1.3 in)	42 of 100 (Notable)
Bucklin 1SE	United States	Record daily precipitation	43.2 mm (1.7 in)	42 of 100 (Notable)
Larned	United States	Record daily precipitation	46.7 mm (1.8 in)	42 of 100 (Notable)
Lincoln 1 SE	United States	Record daily precipitation	59.9 mm (2.4 in)	41 of 100 (Notable)
Norton 9SSE	United States	Record daily precipitation	28.2 mm (1.1 in)	41 of 100 (Notable)
Lake Maloya	United States	Record daily snowfall	52.1 cm (20.5 in)	41 of 100 (Notable)
Tarkio	United States	Record daily precipitation	44.7 mm (1.8 in)	41 of 100 (Notable)
Elkhart	United States	Record snow depth	15.2 cm (6.0 in)	40 of 100 (Notable)
Harlan	United States	Record daily precipitation	27.4 mm (1.1 in)	40 of 100 (Notable)
Orrville	United States	Record daily precipitation	82.6 mm (3.3 in)	39 of 100 (Notable)
Blue Rapids	United States	Record daily precipitation	25.9 mm (1.0 in)	39 of 100 (Notable)
Healy	United States	Record daily precipitation	35.3 mm (1.4 in)	39 of 100 (Notable)

Counts by Type and Timescale

755 records

Records set or tied on 31 March 1973 by type: Highest daily maximum 37, Lowest daily maximum 32, Highest daily minimum 77, Lowest daily minimum 37, Heaviest daily rainfall 530, Heaviest daily snowfall 24, Deepest snow cover 18.

Records on 31 March 1973 by type
Record type	Records
Highest daily maximum	37
Lowest daily maximum	32
Highest daily minimum	77
Lowest daily minimum	37
Heaviest daily rainfall	530
Heaviest daily snowfall	24
Deepest snow cover	18

Records on 31 March 1973 by timescale: all-time 1, monthly 28, daily 726.

How Much Records Were Beaten By

679 broken records

Margins by which the 679 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 369.0. Ties are not counted.

Top 20 by Significance

31 March 1973

Top 20 records on 31 March 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 March 1973	Atlantic 1 NE, US	daily rain	51.1 mm (2.0 in)	34.3 mm (1.4 in)	59 years	65 of 100 (Major)
31 March 1973	Winterset 4N, US	daily rain	45.7 mm (1.8 in)	33.0 mm (1.3 in)	44 years	61 of 100 (Major)
31 March 1973	Indianola 1SW, US	daily rain	50.3 mm (2.0 in)	29.5 mm (1.2 in)	44 years	60 of 100 (Major)
31 March 1973	Cimarron 4 SW, US	daily snow depth	35.6 cm (14.0 in)	22.9 cm (9.0 in)	68 years	59 of 100 (Notable)
31 March 1973	Sublette 7WSW, US	daily rain	39.4 mm (1.6 in)	24.9 mm (1.0 in)	46 years	57 of 100 (Notable)
31 March 1973	Clayton Muni Air Pk, US	daily snow depth	25.4 cm (10.0 in)	17.8 cm (7.0 in)	64 years	56 of 100 (Notable)
31 March 1973	Westmoreland, US	daily rain	57.4 mm (2.3 in)	50.0 mm (2.0 in)	26 years	55 of 100 (Notable)
31 March 1973	Wondai Post Office, AU	daily rain	99.1 mm (3.9 in)	78.8 mm (3.1 in)	26 years	53 of 100 (Notable)
31 March 1973	Bedford, US	daily rain	44.7 mm (1.8 in)	27.7 mm (1.1 in)	52 years	53 of 100 (Notable)
31 March 1973	Santa Sofia, BR	daily rain	91.0 mm (3.6 in)	69.5 mm (2.7 in)	32 years	52 of 100 (Notable)
31 March 1973	Shenandoah, US	daily rain	45.7 mm (1.8 in)	37.3 mm (1.5 in)	26 years	52 of 100 (Notable)
31 March 1973	Hays 1 S, US	daily rain	39.4 mm (1.6 in)	31.0 mm (1.2 in)	16 years	52 of 100 (Notable)
31 March 1973	McPherson, US	daily rain	55.9 mm (2.2 in)	42.4 mm (1.7 in)	12 years	51 of 100 (Notable)
31 March 1973	Mt Hope, US	daily rain	58.9 mm (2.3 in)	40.6 mm (1.6 in)	12 years	51 of 100 (Notable)
31 March 1973	Cimarron, US	daily rain	46.7 mm (1.8 in)	34.0 mm (1.3 in)	16 years	50 of 100 (Notable)
31 March 1973	Covert, US	daily rain	43.7 mm (1.7 in)	38.4 mm (1.5 in)	26 years	50 of 100 (Notable)
31 March 1973	Wakefield 4 W, US	daily rain	36.1 mm (1.4 in)	30.3 mm (1.2 in)	26 years	50 of 100 (Notable)
31 March 1973	Syracuse, US	daily rain	37.6 mm (1.5 in)	21.9 mm (0.9 in)	46 years	50 of 100 (Notable)
31 March 1973	Marlborough Post Office, AU	daily rain	102.9 mm (4.1 in)	43.7 mm (1.7 in)	67 years	49 of 100 (Notable)
31 March 1973	Versailles, US	daily rain	45.7 mm (1.8 in)	20.6 mm (0.8 in)	77 years	49 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

1808 to 1973

Records set or tied on this calendar date in each year from 1808 to 1973. 1973 had 755 records.

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

Records on 03-31 in each year
Year	Records
1808	2
1815	2
1843	1
1848	1
1850	1
1854	1
1855	3
1856	2
1859	3
1865	2
1869	1
1872	4
1873	1
1874	1
1876	1
1878	1
1880	2
1881	1
1883	1
1887	2
1889	1
1890	1
1891	1
1892	2
1893	3
1896	3
1897	2
1898	5
1899	3
1900	9
1901	7
1902	3
1903	14
1904	16
1905	29
1906	10
1907	11
1908	5
1909	4
1910	45
1911	24
1912	18
1913	62
1914	16
1915	57
1916	17
1917	52
1918	42
1919	86
1920	65
1921	238
1922	102
1923	459
1924	160
1925	110
1926	306
1927	198
1928	98
1929	323
1930	137
1931	365
1932	360
1933	311
1934	181
1935	310
1936	1,242
1937	258
1938	649
1939	197
1940	697
1941	250
1942	245
1943	794
1944	327
1945	778
1946	897
1947	658
1948	355
1949	452
1950	579
1951	490
1952	382
1953	302
1954	549
1955	286
1956	767
1957	373
1958	414
1959	622
1960	327
1961	525
1962	547
1963	987
1964	1,345
1965	457
1966	845
1967	1,025
1968	504
1969	1,126
1970	945
1971	516
1972	427
1973	755
1974	852
1975	1,032
1976	519
1977	1,021
1978	1,362
1979	722
1980	640
1981	1,060
1982	926
1983	564
1984	532
1985	1,471
1986	1,507
1987	2,256
1988	850
1989	1,335
1990	842
1991	634
1992	747
1993	668
1994	871
1995	940
1996	743
1997	962
1998	2,587
1999	1,100
2000	581
2001	686
2002	861
2003	1,722
2004	1,055
2005	861
2006	1,088
2007	1,150
2008	1,471
2009	927
2010	984
2011	1,020
2012	942
2013	753
2014	631
2015	861
2016	823
2017	1,423
2018	663
2019	544
2020	534
2021	949
2022	683
2023	1,128
2024	488
2025	942
2026	1,275

Download the Data

Data for records on 1973-03-31: 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	639
50 to 100	27
100 to 150	2
150 to 200	3
200 to 250	3
250 to 300	2
300 to 350	2
350 to 400	1