Weather Records on 12 March 1973

890 weather records were set or tied worldwide on 12 March 1973. Highest significance: Varzea, BR.

Key Facts for 12 March 1973

On 12 March 1973, 890 weather records were set or tied at long-record stations worldwide.
592 were record highs and 42 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 17 monthly and 871 daily.
Varzea set an all-time record daily precipitation of 195.3 mm (7.7 in) on 12 March 1973.
Across 158 earlier years (1810 to 2026) the same calendar date averaged 493 records.

Record Map

890 stations

890 station records on 12 March 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 March 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Varzea	Brazil	Record daily precipitation	195.3 mm (7.7 in)	64 of 100 (Major)
Joao Amaro	Brazil	Record daily precipitation	79.4 mm (3.1 in)	60 of 100 (Major)
Calarasi	Romania	Record daily precipitation	39.2 mm (1.5 in)	59 of 100 (Notable)
Rucker Canyon	United States	Record daily snowfall	30.5 cm (12.0 in)	54 of 100 (Notable)
Minocqua	United States	Record daily precipitation	49.0 mm (1.9 in)	54 of 100 (Notable)
Bergland Dam	United States	Record daily precipitation	34.0 mm (1.3 in)	53 of 100 (Notable)
Izmail	Ukraine	Record daily precipitation	26.6 mm (1.0 in)	52 of 100 (Notable)
Truxton Canyon	United States	Record daily precipitation	32.5 mm (1.3 in)	51 of 100 (Notable)
Vespasiano	Brazil	Record daily precipitation	91.4 mm (3.6 in)	49 of 100 (Notable)
Bucuresti Filaret	Romania	Record daily precipitation	49.3 mm (1.9 in)	49 of 100 (Notable)
River Falls	United States	Record daily precipitation	198.1 mm (7.8 in)	49 of 100 (Notable)
Barra de Sao Pedro (Manaca)	Brazil	Record daily precipitation	82.0 mm (3.2 in)	48 of 100 (Notable)
Amontada	Brazil	Record daily precipitation	86.9 mm (3.4 in)	47 of 100 (Notable)
Acude Coremas	Brazil	Record daily precipitation	112.0 mm (4.4 in)	47 of 100 (Notable)
Tombstone	United States	Record daily precipitation	28.7 mm (1.1 in)	47 of 100 (Notable)
Andalusia 3 W	United States	Record daily precipitation	165.4 mm (6.5 in)	46 of 100 (Notable)
Santo Hipolito	Brazil	Record daily precipitation	65.3 mm (2.6 in)	45 of 100 (Notable)
Ures (Smn)	Mexico	Record daily precipitation	29.0 mm (1.1 in)	45 of 100 (Notable)
Gisela	United States	Record daily precipitation	33.0 mm (1.3 in)	43 of 100 (Notable)
Pianco	Brazil	Record daily precipitation	173.0 mm (6.8 in)	42 of 100 (Notable)
Newark Liberty Intl AP	United States	Record high minimum temperature	8.9 C (48.0 F)	42 of 100 (Notable)
Heber	United States	Record daily snowfall	12.7 cm (5.0 in)	41 of 100 (Notable)
Atlantic City Marina	United States	Record high maximum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Schenectady	United States	Record high minimum temperature	7.8 C (46.0 F)	40 of 100 (Notable)
Parker Rsvr	United States	Record daily precipitation	25.7 mm (1.0 in)	39 of 100 (Notable)
Ft Gaines	United States	Record daily precipitation	111.8 mm (4.4 in)	39 of 100 (Notable)
Huntingdon	Canada	Record high maximum temperature	11.1 C (52.0 F)	38 of 100 (Notable)
Brockton	United States	Record high maximum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record low minimum temperature	-1.7 C (28.9 F)	37 of 100 (Notable)
Atlantic City Marina	United States	Record high minimum temperature	9.4 C (48.9 F)	37 of 100 (Notable)
E Tawas	United States	Record high minimum temperature	5.6 C (42.1 F)	36 of 100 (Notable)
Luis Gomes	Brazil	Record daily precipitation	134.2 mm (5.3 in)	35 of 100 (Notable)
Cambridge Galt Moe	Canada	Record high minimum temperature	4.4 C (39.9 F)	35 of 100 (Notable)
St Hyacinthe	Canada	Record high minimum temperature	5.0 C (41.0 F)	35 of 100 (Notable)
Toledo Blade	United States	Record high maximum temperature	23.9 C (75.0 F)	35 of 100 (Notable)
Enosburg Falls	United States	Record daily precipitation	25.7 mm (1.0 in)	35 of 100 (Notable)
Colchester 2 W	United States	Record high minimum temperature	7.8 C (46.0 F)	34 of 100 (Routine)
Blakely	United States	Record daily precipitation	72.6 mm (2.9 in)	34 of 100 (Routine)
Pocomoke City	United States	Record high maximum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Oconto 4 W	United States	Record high maximum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Tibooburra Post Office	Australia	Record high minimum temperature	29.5 C (85.1 F)	33 of 100 (Routine)
Montreal McGill	Canada	Record high minimum temperature	5.6 C (42.1 F)	33 of 100 (Routine)
Haverhill	United States	Record high maximum temperature	20.6 C (69.1 F)	33 of 100 (Routine)
Hyannis	United States	Record high minimum temperature	6.7 C (44.1 F)	33 of 100 (Routine)
Lowville	United States	Record high minimum temperature	7.8 C (46.0 F)	33 of 100 (Routine)
Plattsburgh AFB	United States	Record high maximum temperature	15.0 C (59.0 F)	33 of 100 (Routine)
Walgett Council Depot	Australia	Record high maximum temperature	43.0 C (109.4 F)	32 of 100 (Routine)
Pelee Island	Canada	Record high minimum temperature	8.9 C (48.0 F)	32 of 100 (Routine)
Saint Johns	United States	Record daily snowfall	15.2 cm (6.0 in)	32 of 100 (Routine)
Gardiner	United States	Record high maximum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Chestertown	United States	Record high minimum temperature	8.9 C (48.0 F)	32 of 100 (Routine)
Beaver Is	United States	Record high maximum temperature	11.1 C (52.0 F)	32 of 100 (Routine)
Tiffin	United States	Record high maximum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
Ipanema	Brazil	Record daily precipitation	88.8 mm (3.5 in)	31 of 100 (Routine)
Patos	Brazil	Record daily precipitation	60.2 mm (2.4 in)	31 of 100 (Routine)
Dover	United States	Record high maximum temperature	23.3 C (73.9 F)	31 of 100 (Routine)
Annapolis US Naval Aca	United States	Record high maximum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Grayling	United States	Record high maximum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Middletown 2 NW	United States	Record high maximum temperature	16.1 C (61.0 F)	31 of 100 (Routine)
Old Forge	United States	Record high maximum temperature	13.9 C (57.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

890 records

Records set or tied on 12 March 1973 by type: Highest daily maximum 265, Lowest daily maximum 25, Highest daily minimum 327, Lowest daily minimum 17, Heaviest daily rainfall 228, Heaviest daily snowfall 23, Deepest snow cover 5.

Records on 12 March 1973 by type
Record type	Records
Highest daily maximum	265
Lowest daily maximum	25
Highest daily minimum	327
Lowest daily minimum	17
Heaviest daily rainfall	228
Heaviest daily snowfall	23
Deepest snow cover	5

Records on 12 March 1973 by timescale: all-time 2, monthly 17, daily 871.

How Much Records Were Beaten By

726 broken records

Margins by which the 726 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

12 March 1973

Top 20 records on 12 March 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 March 1973	Varzea, BR	all-time rain	195.3 mm (7.7 in)	64.8 mm (2.6 in)	14 years	64 of 100 (Major)
12 March 1973	Joao Amaro, BR	daily rain	79.4 mm (3.1 in)	52.6 mm (2.1 in)	58 years	60 of 100 (Major)
12 March 1973	Calarasi, RO	monthly rain	39.2 mm (1.5 in)	15.5 mm (0.6 in)	21 years	59 of 100 (Notable)
12 March 1973	Rucker Canyon, US	daily snowfall	30.5 cm (12.0 in)	20.3 cm (8.0 in)	20 years	54 of 100 (Notable)
12 March 1973	Minocqua, US	monthly rain	49.0 mm (1.9 in)	17.0 mm (0.7 in)	0 years	54 of 100 (Notable)
12 March 1973	Bergland Dam, US	daily rain	34.0 mm (1.3 in)	18.8 mm (0.7 in)	52 years	53 of 100 (Notable)
12 March 1973	Izmail, UA	daily rain	26.6 mm (1.0 in)	20.0 mm (0.8 in)	15 years	52 of 100 (Notable)
12 March 1973	Truxton Canyon, US	daily rain	32.5 mm (1.3 in)	17.3 mm (0.7 in)	55 years	51 of 100 (Notable)
12 March 1973	Vespasiano, BR	daily rain	91.4 mm (3.6 in)	60.8 mm (2.4 in)	22 years	49 of 100 (Notable)
12 March 1973	Bucuresti Filaret, RO	monthly rain	49.3 mm (1.9 in)	13.1 mm (0.5 in)	27 years	49 of 100 (Notable)
12 March 1973	River Falls, US	daily rain	198.1 mm (7.8 in)	121.1 mm (4.8 in)	16 years	49 of 100 (Notable)
12 March 1973	Barra de Sao Pedro (Manaca), BR	daily rain	82.0 mm (3.2 in)	72.0 mm (2.8 in)	30 years	48 of 100 (Notable)
12 March 1973	Amontada, BR	daily rain	86.9 mm (3.4 in)	60.1 mm (2.4 in)	7 years	47 of 100 (Notable)
12 March 1973	Acude Coremas, BR	daily rain	112.0 mm (4.4 in)	71.3 mm (2.8 in)	26 years	47 of 100 (Notable)
12 March 1973	Tombstone, US	daily rain	28.7 mm (1.1 in)	15.5 mm (0.6 in)	51 years	47 of 100 (Notable)
12 March 1973	Andalusia 3 W, US	monthly rain	165.4 mm (6.5 in)	54.7 mm (2.2 in)	10 years	46 of 100 (Notable)
12 March 1973	Santo Hipolito, BR	daily rain	65.3 mm (2.6 in)	51.3 mm (2.0 in)	12 years	45 of 100 (Notable)
12 March 1973	Ures (Smn), MX	daily rain	29.0 mm (1.1 in)	27.7 mm (1.1 in)	32 years	45 of 100 (Notable)
12 March 1973	Gisela, US	daily rain	33.0 mm (1.3 in)	18.3 mm (0.7 in)	55 years	43 of 100 (Notable)
12 March 1973	Pianco, BR	all-time rain	173.0 mm (6.8 in)	33.5 mm (1.3 in)	4 years	42 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

1810 to 1973

Records set or tied on this calendar date in each year from 1810 to 1973. 1973 had 890 records.

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

Records on 03-12 in each year
Year	Records
1810	2
1822	2
1845	2
1847	2
1849	1
1854	1
1855	1
1857	1
1859	1
1860	2
1861	1
1862	1
1867	1
1878	1
1879	1
1881	2
1882	1
1883	3
1884	3
1885	1
1886	6
1887	1
1888	4
1890	5
1891	5
1892	1
1893	1
1894	2
1895	3
1896	2
1897	4
1899	2
1900	4
1901	3
1902	14
1903	8
1904	7
1905	12
1906	34
1907	9
1908	11
1909	26
1910	23
1911	15
1912	7
1913	19
1914	89
1915	17
1916	27
1917	54
1918	96
1919	50
1920	42
1921	59
1922	29
1923	165
1924	168
1925	127
1926	128
1927	399
1928	204
1929	324
1930	210
1931	159
1932	589
1933	290
1934	639
1935	330
1936	399
1937	189
1938	293
1939	525
1940	588
1941	215
1942	239
1943	194
1944	448
1945	241
1946	532
1947	727
1948	1,510
1949	544
1950	841
1951	475
1952	433
1953	298
1954	603
1955	613
1956	1,159
1957	371
1958	611
1959	513
1960	891
1961	432
1962	846
1963	669
1964	285
1965	422
1966	384
1967	1,135
1968	931
1969	1,254
1970	391
1971	481
1972	1,215
1973	890
1974	784
1975	540
1976	657
1977	1,834
1978	554
1979	606
1980	601
1981	1,112
1982	860
1983	1,057
1984	1,235
1985	886
1986	658
1987	728
1988	918
1989	1,402
1990	2,905
1991	607
1992	1,423
1993	931
1994	619
1995	1,067
1996	1,030
1997	990
1998	2,483
1999	636
2000	715
2001	1,392
2002	935
2003	703
2004	649
2005	1,020
2006	2,121
2007	1,652
2008	684
2009	1,148
2010	791
2011	494
2012	981
2013	874
2014	645
2015	793
2016	809
2017	702
2018	609
2019	865
2020	762
2021	659
2022	1,144
2023	877
2024	527
2025	615
2026	1,212

Download the Data

Data for records on 1973-03-12: 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	704
50 to 100	18
100 to 150	2
150 to 200	1
200 to 250	1