Weather Records on 20 March 1973

422 weather records were set or tied worldwide on 20 March 1973. Highest significance: Spreckels Hwy Brg, US.

Key Facts for 20 March 1973

On 20 March 1973, 422 weather records were set or tied at long-record stations worldwide.
91 were record highs and 39 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 418 daily.
Spreckels Hwy Brg set a daily record precipitation of 38.6 mm (1.5 in) on 20 March 1973.
Across 166 earlier years (1808 to 2026) the same calendar date averaged 455 records.

Record Map

422 stations

422 station records on 20 March 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 March 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Spreckels Hwy Brg	United States	Record daily precipitation	38.6 mm (1.5 in)	57 of 100 (Notable)
Ft Washakie 1 SE	United States	Record snow depth	45.7 cm (18.0 in)	49 of 100 (Notable)
Centennial Park	Australia	Record daily precipitation	65.5 mm (2.6 in)	46 of 100 (Notable)
Tafelberg Hall	South Africa	Record daily precipitation	42.3 mm (1.7 in)	46 of 100 (Notable)
Salem	United States	Record daily precipitation	73.2 mm (2.9 in)	46 of 100 (Notable)
Paso Robles	United States	Record daily precipitation	33.5 mm (1.3 in)	44 of 100 (Notable)
Adrian 2 NNE	United States	Record snow depth	15.2 cm (6.0 in)	44 of 100 (Notable)
Ann Arbor U of Mich	United States	Record snow depth	17.8 cm (7.0 in)	43 of 100 (Notable)
Kern River Ph 1	United States	Record daily precipitation	32.3 mm (1.3 in)	42 of 100 (Notable)
Mariposa	United States	Record daily snowfall	5.1 cm (2.0 in)	41 of 100 (Notable)
Macucos	Brazil	Record daily precipitation	62.8 mm (2.5 in)	40 of 100 (Notable)
Auberry 2 NW	United States	Record daily snowfall	7.6 cm (3.0 in)	37 of 100 (Notable)
Lindsay	United States	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Tehachapi	United States	Record daily snowfall	21.6 cm (8.5 in)	37 of 100 (Notable)
Iola 1 W	United States	Record daily precipitation	52.6 mm (2.1 in)	37 of 100 (Notable)
Edgerton	United States	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Ribeirao Do Sul	Brazil	Record daily precipitation	56.3 mm (2.2 in)	34 of 100 (Routine)
Glen Roy	South Africa	Record daily precipitation	33.5 mm (1.3 in)	34 of 100 (Routine)
Nieu-Bethesda (Pol)	South Africa	Record daily precipitation	28.5 mm (1.1 in)	34 of 100 (Routine)
Nqadu Heights (Bos)	South Africa	Record daily precipitation	72.0 mm (2.8 in)	34 of 100 (Routine)
Watsonville Wtr Wks	United States	Record daily precipitation	34.8 mm (1.4 in)	34 of 100 (Routine)
Flagstaff AP	United States	Record daily snowfall	14.7 cm (5.8 in)	34 of 100 (Routine)
San Luis Obispo Poly	United States	Record daily precipitation	59.2 mm (2.3 in)	33 of 100 (Routine)
Bliss 4 NW	United States	Record high minimum temperature	5.0 C (41.0 F)	33 of 100 (Routine)
Grants Pass	United States	Record low maximum temperature	4.4 C (39.9 F)	33 of 100 (Routine)
Tullahoma	United States	Record daily precipitation	39.6 mm (1.6 in)	33 of 100 (Routine)
Randwick Bowling Club	Australia	Record daily precipitation	75.2 mm (3.0 in)	32 of 100 (Routine)
Cartwright	Canada	Record daily snowfall	40.1 cm (15.8 in)	32 of 100 (Routine)
Lebo	United States	Record daily precipitation	28.2 mm (1.1 in)	32 of 100 (Routine)
Nguiu	Australia	Record daily precipitation	97.3 mm (3.8 in)	31 of 100 (Routine)
Tylden "Tulden"	South Africa	Record daily precipitation	35.5 mm (1.4 in)	31 of 100 (Routine)
Richmond C/K (Tnk)	South Africa	Record daily precipitation	26.0 mm (1.0 in)	31 of 100 (Routine)
Lemon Cove	United States	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)
Tejon Rancho	United States	Record daily precipitation	27.4 mm (1.1 in)	31 of 100 (Routine)
Coldwater St School	United States	Record snow depth	15.2 cm (6.0 in)	31 of 100 (Routine)
Attenkam	Germany	Record snow depth	27.0 cm (10.6 in)	30 of 100 (Routine)
Cookhouse (Sar)	South Africa	Record daily precipitation	38.7 mm (1.5 in)	28 of 100 (Routine)
Middleburg	South Africa	Record daily precipitation	30.0 mm (1.2 in)	28 of 100 (Routine)
N Fk Rs	United States	Record daily precipitation	50.8 mm (2.0 in)	28 of 100 (Routine)
Paskenta Rs	United States	Record daily precipitation	62.0 mm (2.4 in)	28 of 100 (Routine)
Pattiway	United States	Record daily snowfall	12.7 cm (5.0 in)	28 of 100 (Routine)
Pinnacles Np	United States	Record daily precipitation	39.6 mm (1.6 in)	28 of 100 (Routine)
Howell Wwtp	United States	Record snow depth	25.4 cm (10.0 in)	28 of 100 (Routine)
Kalabasput	South Africa	Record daily precipitation	25.5 mm (1.0 in)	27 of 100 (Routine)
Friant Government Camp	United States	Record daily precipitation	27.9 mm (1.1 in)	27 of 100 (Routine)
Cartwright	Canada	Record daily precipitation	42.7 mm (1.7 in)	26 of 100 (Routine)
Reit Im Winkl	Germany	Record snow depth	161.0 cm (63.4 in)	26 of 100 (Routine)
Yosemite Park HQ	United States	Record daily snowfall	17.8 cm (7.0 in)	26 of 100 (Routine)
Paola	United States	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)
East Park Rsvr	United States	Record daily precipitation	27.2 mm (1.1 in)	25 of 100 (Routine)
Hernandez 2 NW	United States	Record daily precipitation	44.2 mm (1.7 in)	25 of 100 (Routine)
Huntington Lake	United States	Record daily snowfall	48.3 cm (19.0 in)	25 of 100 (Routine)
Idria	United States	Record daily precipitation	42.4 mm (1.7 in)	25 of 100 (Routine)
Priest Valley	United States	Record daily precipitation	50.0 mm (2.0 in)	25 of 100 (Routine)
Wrangell AP	United States	Record daily snowfall	16.5 cm (6.5 in)	25 of 100 (Routine)
Van der Waltshoek	South Africa	Record daily precipitation	31.5 mm (1.2 in)	24 of 100 (Routine)
Vleiplaas	South Africa	Record daily precipitation	36.0 mm (1.4 in)	24 of 100 (Routine)
Grootfontein 11,	South Africa	Record daily precipitation	30.3 mm (1.2 in)	24 of 100 (Routine)
Stonyford	United States	Record daily precipitation	30.7 mm (1.2 in)	24 of 100 (Routine)
Hollister	United States	Record daily snowfall	12.7 cm (5.0 in)	24 of 100 (Routine)

Counts by Type and Timescale

422 records

Records set or tied on 20 March 1973 by type: Highest daily maximum 31, Lowest daily maximum 29, Highest daily minimum 60, Lowest daily minimum 10, Heaviest daily rainfall 257, Heaviest daily snowfall 19, Deepest snow cover 16.

Records on 20 March 1973 by type
Record type	Records
Highest daily maximum	31
Lowest daily maximum	29
Highest daily minimum	60
Lowest daily minimum	10
Heaviest daily rainfall	257
Heaviest daily snowfall	19
Deepest snow cover	16

Records on 20 March 1973 by timescale: all-time 0, monthly 4, daily 418.

How Much Records Were Beaten By

382 broken records

Margins by which the 382 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 406.0. Ties are not counted.

Top 20 by Significance

20 March 1973

Top 20 records on 20 March 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 March 1973	Spreckels Hwy Brg, US	daily rain	38.6 mm (1.5 in)	22.6 mm (0.9 in)	64 years	57 of 100 (Notable)
20 March 1973	Ft Washakie 1 SE, US	daily snow depth	45.7 cm (18.0 in)	40.6 cm (16.0 in)	19 years	49 of 100 (Notable)
20 March 1973	Centennial Park, AU	daily rain	65.5 mm (2.6 in)	36.3 mm (1.4 in)	72 years	46 of 100 (Notable)
20 March 1973	Tafelberg Hall, ZA	daily rain	42.3 mm (1.7 in)	22.7 mm (0.9 in)	52 years	46 of 100 (Notable)
20 March 1973	Salem, US	daily rain	73.2 mm (2.9 in)	24.2 mm (1.0 in)	64 years	46 of 100 (Notable)
20 March 1973	Paso Robles, US	daily rain	33.5 mm (1.3 in)	14.7 mm (0.6 in)	73 years	44 of 100 (Notable)
20 March 1973	Adrian 2 NNE, US	daily snow depth	15.2 cm (6.0 in)	10.1 cm (4.0 in)	76 years	44 of 100 (Notable)
20 March 1973	Ann Arbor U of Mich, US	daily snow depth	17.8 cm (7.0 in)	10.2 cm (4.0 in)	72 years	43 of 100 (Notable)
20 March 1973	Kern River Ph 1, US	daily rain	32.3 mm (1.3 in)	13.2 mm (0.5 in)	56 years	42 of 100 (Notable)
20 March 1973	Mariposa, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	79 years	41 of 100 (Notable)
20 March 1973	Macucos, BR	daily rain	62.8 mm (2.5 in)	40.7 mm (1.6 in)	10 years	40 of 100 (Notable)
20 March 1973	Auberry 2 NW, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	56 years	37 of 100 (Notable)
20 March 1973	Lindsay, US	daily rain	25.4 mm (1.0 in)	10.2 mm (0.4 in)	56 years	37 of 100 (Notable)
20 March 1973	Tehachapi, US	daily snowfall	21.6 cm (8.5 in)	19.1 cm (7.5 in)	19 years	37 of 100 (Notable)
20 March 1973	Iola 1 W, US	daily rain	52.6 mm (2.1 in)	12.0 mm (0.5 in)	64 years	37 of 100 (Notable)
20 March 1973	Edgerton, US	daily rain	35.6 mm (1.4 in)	28.0 mm (1.1 in)	12 years	36 of 100 (Notable)
20 March 1973	Ribeirao Do Sul, BR	daily rain	56.3 mm (2.2 in)	34.9 mm (1.4 in)	32 years	34 of 100 (Routine)
20 March 1973	Glen Roy, ZA	daily rain	33.5 mm (1.3 in)	25.0 mm (1.0 in)	11 years	34 of 100 (Routine)
20 March 1973	Nieu-Bethesda (Pol), ZA	daily rain	28.5 mm (1.1 in)	3.1 mm (0.12 in)	76 years	34 of 100 (Routine)
20 March 1973	Nqadu Heights (Bos), ZA	daily rain	72.0 mm (2.8 in)	27.8 mm (1.1 in)	38 years	34 of 100 (Routine)

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 422 records.

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

Records on 03-20 in each year
Year	Records
1808	3
1818	1
1822	2
1830	1
1834	1
1838	1
1845	1
1849	3
1850	1
1852	1
1853	1
1858	1
1862	1
1865	11
1866	1
1870	1
1872	2
1873	1
1874	2
1875	2
1876	2
1879	2
1881	2
1882	2
1883	1
1884	2
1885	3
1886	2
1887	3
1888	5
1889	5
1890	1
1892	1
1893	2
1894	5
1895	2
1896	5
1897	2
1898	5
1899	9
1900	8
1901	6
1902	13
1903	34
1904	12
1905	6
1906	16
1907	17
1908	4
1909	6
1910	20
1911	35
1912	12
1913	42
1914	51
1915	22
1916	46
1917	49
1918	40
1919	31
1920	52
1921	93
1922	49
1923	275
1924	76
1925	121
1926	103
1927	298
1928	258
1929	56
1930	86
1931	492
1932	117
1933	354
1934	243
1935	408
1936	245
1937	220
1938	394
1939	240
1940	486
1941	390
1942	325
1943	378
1944	611
1945	636
1946	435
1947	299
1948	697
1949	352
1950	367
1951	788
1952	589
1953	350
1954	303
1955	719
1956	527
1957	516
1958	467
1959	293
1960	594
1961	332
1962	363
1963	447
1964	525
1965	2,020
1966	367
1967	784
1968	819
1969	374
1970	912
1971	377
1972	635
1973	422
1974	755
1975	932
1976	989
1977	352
1978	863
1979	712
1980	458
1981	712
1982	1,189
1983	1,179
1984	775
1985	636
1986	666
1987	867
1988	1,044
1989	793
1990	1,496
1991	1,205
1992	654
1993	1,014
1994	1,040
1995	857
1996	1,147
1997	1,801
1998	963
1999	793
2000	894
2001	1,048
2002	1,698
2003	1,166
2004	1,701
2005	602
2006	1,353
2007	1,053
2008	993
2009	445
2010	1,264
2011	1,003
2012	3,051
2013	762
2014	800
2015	521
2016	450
2017	1,331
2018	587
2019	530
2020	1,006
2021	487
2022	667
2023	975
2024	520
2025	848
2026	3,126

Download the Data

Data for records on 1973-03-20: 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 100	373
100 to 200	5
200 to 300	3
300 to 400	0
400 to 500	1