Weather Records on 18 March 1973

716 weather records were set or tied worldwide on 18 March 1973. Highest significance: Kingscote (Karinga), AU.

Key Facts for 18 March 1973

On 18 March 1973, 716 weather records were set or tied at long-record stations worldwide.
67 were record highs and 75 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 22 monthly and 693 daily.
Kingscote (Karinga) set a monthly record daily precipitation of 58.4 mm (2.3 in) on 18 March 1973.
Across 160 earlier years (1806 to 2026) the same calendar date averaged 476 records.

Record Map

716 stations

716 station records on 18 March 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 March 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kingscote (Karinga)	Australia	Record daily precipitation	58.4 mm (2.3 in)	74 of 100 (Major)
American River	Australia	Record daily precipitation	48.5 mm (1.9 in)	73 of 100 (Major)
Warooka	Australia	Record daily precipitation	31.2 mm (1.2 in)	71 of 100 (Major)
Elliston	Australia	Record daily precipitation	40.6 mm (1.6 in)	65 of 100 (Major)
Biscuit Flat (Woolmit)	Australia	Record daily precipitation	39.1 mm (1.5 in)	65 of 100 (Major)
Bancroft	Canada	Record daily snowfall	25.4 cm (10.0 in)	65 of 100 (Major)
Mount Wedge	Australia	Record daily precipitation	26.9 mm (1.1 in)	64 of 100 (Major)
Adrian 2 NNE	United States	Record snow depth	33.0 cm (13.0 in)	64 of 100 (Major)
Greenville 2 NE	United States	Record daily snowfall	29.2 cm (11.5 in)	64 of 100 (Major)
Stokes	Australia	Record daily precipitation	35.1 mm (1.4 in)	63 of 100 (Major)
Cape Borda Comparison	Australia	Record daily precipitation	64.3 mm (2.5 in)	63 of 100 (Major)
Mallina	Australia	Record daily precipitation	147.3 mm (5.8 in)	62 of 100 (Major)
Cape Willoughby	Australia	Record daily precipitation	49.3 mm (1.9 in)	62 of 100 (Major)
Calvinia	South Africa	Record daily precipitation	56.0 mm (2.2 in)	62 of 100 (Major)
Sheringa	Australia	Record daily precipitation	39.4 mm (1.6 in)	61 of 100 (Major)
Butler (Anona)	Australia	Record daily precipitation	30.2 mm (1.2 in)	61 of 100 (Major)
Lake Leake (Kooeeyong)	Australia	Record daily precipitation	41.9 mm (1.6 in)	61 of 100 (Major)
Mount Florance	Australia	Record daily precipitation	111.8 mm (4.4 in)	60 of 100 (Major)
Emu Creek Station	Australia	Record daily precipitation	62.5 mm (2.5 in)	59 of 100 (Notable)
Cape de Couedic	Australia	Record daily precipitation	30.5 mm (1.2 in)	59 of 100 (Notable)
Penneshaw	Australia	Record daily precipitation	35.3 mm (1.4 in)	59 of 100 (Notable)
Upper Sandusky	United States	Record daily snowfall	27.9 cm (11.0 in)	59 of 100 (Notable)
Butler Tanks (North Parnda)	Australia	Record daily precipitation	28.7 mm (1.1 in)	58 of 100 (Notable)
Kingscote	Australia	Record daily precipitation	34.8 mm (1.4 in)	58 of 100 (Notable)
Mount Burr Forest Reserve	Australia	Record daily precipitation	46.0 mm (1.8 in)	58 of 100 (Notable)
Red Hill	Australia	Record daily precipitation	85.1 mm (3.4 in)	57 of 100 (Notable)
Penong (Penalumba)	Australia	Record daily precipitation	43.7 mm (1.7 in)	57 of 100 (Notable)
Penong	Australia	Record daily precipitation	51.1 mm (2.0 in)	57 of 100 (Notable)
Corny Point	Australia	Record daily precipitation	32.5 mm (1.3 in)	57 of 100 (Notable)
Cygnet River	Australia	Record daily precipitation	49.5 mm (1.9 in)	57 of 100 (Notable)
Murrays Lagoon (Bayside)	Australia	Record daily precipitation	61.7 mm (2.4 in)	57 of 100 (Notable)
Second Valley (Poolamacca)	Australia	Record daily precipitation	31.2 mm (1.2 in)	57 of 100 (Notable)
Coldwater St School	United States	Record snow depth	25.4 cm (10.0 in)	57 of 100 (Notable)
Nundroo	Australia	Record daily precipitation	55.6 mm (2.2 in)	56 of 100 (Notable)
Yeelana (Brimpton Lake)	Australia	Record daily precipitation	35.6 mm (1.4 in)	55 of 100 (Notable)
Nundroo (Colona)	Australia	Record daily precipitation	50.8 mm (2.0 in)	55 of 100 (Notable)
Port Kenny (Yandra)	Australia	Record daily precipitation	28.7 mm (1.1 in)	55 of 100 (Notable)
Watertown	United States	Record daily precipitation	28.4 mm (1.1 in)	55 of 100 (Notable)
Saginaw Mbs Intl AP	United States	Record snow depth	53.3 cm (21.0 in)	55 of 100 (Notable)
Turee Creek	Australia	Record daily precipitation	56.1 mm (2.2 in)	54 of 100 (Notable)
Mount Hope (Fairview)	Australia	Record daily precipitation	37.1 mm (1.5 in)	54 of 100 (Notable)
Smith Bay (Smiths Bay)	Australia	Record daily precipitation	33.0 mm (1.3 in)	54 of 100 (Notable)
Coromandel Valley (Branden)	Australia	Record daily precipitation	26.4 mm (1.0 in)	54 of 100 (Notable)
Ann Arbor U of Mich	United States	Record snow depth	33.0 cm (13.0 in)	53 of 100 (Notable)
Peedamullah	Australia	Record daily precipitation	134.6 mm (5.3 in)	52 of 100 (Notable)
Mount Stuart	Australia	Record daily precipitation	61.0 mm (2.4 in)	52 of 100 (Notable)
Talia	Australia	Record daily precipitation	28.4 mm (1.1 in)	52 of 100 (Notable)
Parndana (Pioneer Bend)	Australia	Record daily precipitation	47.2 mm (1.9 in)	52 of 100 (Notable)
Bancroft	Canada	Record daily precipitation	34.8 mm (1.4 in)	52 of 100 (Notable)
Millington 3 SE	United States	Record snow depth	40.6 cm (16.0 in)	52 of 100 (Notable)
Tumby Bay (Hillview)	Australia	Record daily precipitation	35.6 mm (1.4 in)	51 of 100 (Notable)
Tumby Bay (Warratta Vale)	Australia	Record daily precipitation	31.8 mm (1.3 in)	51 of 100 (Notable)
Second Valley (Spring Grove)	Australia	Record daily precipitation	37.3 mm (1.5 in)	51 of 100 (Notable)
Bonley	Australia	Record daily precipitation	41.4 mm (1.6 in)	51 of 100 (Notable)
Lucindale Post Office	Australia	Record daily precipitation	35.3 mm (1.4 in)	51 of 100 (Notable)
Mount Gambier Aero	Australia	Record daily precipitation	31.0 mm (1.2 in)	51 of 100 (Notable)
Chemung	United States	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
Streaky Bay	Australia	Record daily precipitation	35.8 mm (1.4 in)	50 of 100 (Notable)
Happy Valley Reservoir	Australia	Record daily precipitation	27.9 mm (1.1 in)	50 of 100 (Notable)
Naracoorte Cave Range	Australia	Record daily precipitation	26.4 mm (1.0 in)	50 of 100 (Notable)

Counts by Type and Timescale

716 records

Records set or tied on 18 March 1973 by type: Highest daily maximum 35, Lowest daily maximum 30, Highest daily minimum 32, Lowest daily minimum 45, Heaviest daily rainfall 426, Heaviest daily snowfall 103, Deepest snow cover 45.

Records on 18 March 1973 by type
Record type	Records
Highest daily maximum	35
Lowest daily maximum	30
Highest daily minimum	32
Lowest daily minimum	45
Heaviest daily rainfall	426
Heaviest daily snowfall	103
Deepest snow cover	45

Records on 18 March 1973 by timescale: all-time 1, monthly 22, daily 693.

How Much Records Were Beaten By

628 broken records

Margins by which the 628 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 305.0. Ties are not counted.

Top 20 by Significance

18 March 1973

Top 20 records on 18 March 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 March 1973	Kingscote (Karinga), AU	monthly rain	58.4 mm (2.3 in)	19.3 mm (0.8 in)	63 years	74 of 100 (Major)
18 March 1973	American River, AU	monthly rain	48.5 mm (1.9 in)	17.3 mm (0.7 in)	59 years	73 of 100 (Major)
18 March 1973	Warooka, AU	daily rain	31.2 mm (1.2 in)	21.0 mm (0.8 in)	78 years	71 of 100 (Major)
18 March 1973	Elliston, AU	daily rain	40.6 mm (1.6 in)	31.2 mm (1.2 in)	56 years	65 of 100 (Major)
18 March 1973	Biscuit Flat (Woolmit), AU	daily rain	39.1 mm (1.5 in)	35.0 mm (1.4 in)	62 years	65 of 100 (Major)
18 March 1973	Bancroft, CA	daily snowfall	25.4 cm (10.0 in)	20.3 cm (8.0 in)	81 years	65 of 100 (Major)
18 March 1973	Mount Wedge, AU	daily rain	26.9 mm (1.1 in)	26.4 mm (1.0 in)	84 years	64 of 100 (Major)
18 March 1973	Adrian 2 NNE, US	daily snow depth	33.0 cm (13.0 in)	25.4 cm (10.0 in)	72 years	64 of 100 (Major)
18 March 1973	Greenville 2 NE, US	daily snowfall	29.2 cm (11.5 in)	19.8 cm (7.8 in)	56 years	64 of 100 (Major)
18 March 1973	Stokes, AU	daily rain	35.1 mm (1.4 in)	29.3 mm (1.2 in)	56 years	63 of 100 (Major)
18 March 1973	Cape Borda Comparison, AU	daily rain	64.3 mm (2.5 in)	54.9 mm (2.2 in)	46 years	63 of 100 (Major)
18 March 1973	Mallina, AU	daily rain	147.3 mm (5.8 in)	136.1 mm (5.4 in)	51 years	62 of 100 (Major)
18 March 1973	Cape Willoughby, AU	daily rain	49.3 mm (1.9 in)	41.7 mm (1.6 in)	46 years	62 of 100 (Major)
18 March 1973	Calvinia, ZA	daily rain	56.0 mm (2.2 in)	53.0 mm (2.1 in)	58 years	62 of 100 (Major)
18 March 1973	Sheringa, AU	daily rain	39.4 mm (1.6 in)	27.2 mm (1.1 in)	56 years	61 of 100 (Major)
18 March 1973	Butler (Anona), AU	daily rain	30.2 mm (1.2 in)	23.6 mm (0.9 in)	56 years	61 of 100 (Major)
18 March 1973	Lake Leake (Kooeeyong), AU	daily rain	41.9 mm (1.6 in)	33.0 mm (1.3 in)	46 years	61 of 100 (Major)
18 March 1973	Mount Florance, AU	daily rain	111.8 mm (4.4 in)	92.5 mm (3.6 in)	56 years	60 of 100 (Major)
18 March 1973	Emu Creek Station, AU	daily rain	62.5 mm (2.5 in)	62.5 mm (2.5 in)	66 years	59 of 100 (Notable)
18 March 1973	Cape de Couedic, AU	daily rain	30.5 mm (1.2 in)	23.4 mm (0.9 in)	46 years	59 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

1806 to 1973

Records set or tied on this calendar date in each year from 1806 to 1973. 1973 had 716 records.

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

Records on 03-18 in each year
Year	Records
1806	1
1807	1
1808	1
1810	1
1814	1
1831	1
1836	1
1839	1
1845	1
1849	1
1850	5
1853	2
1859	1
1863	1
1865	2
1867	1
1868	3
1876	1
1881	1
1882	3
1884	3
1885	1
1887	1
1888	4
1890	3
1891	3
1892	2
1893	1
1894	1
1895	2
1896	10
1897	14
1898	5
1899	8
1900	14
1901	2
1902	9
1903	22
1904	9
1905	19
1906	13
1907	11
1908	8
1909	9
1910	12
1911	17
1912	16
1913	24
1914	32
1915	30
1916	73
1917	45
1918	32
1919	25
1920	39
1921	66
1922	39
1923	262
1924	96
1925	145
1926	251
1927	376
1928	301
1929	106
1930	261
1931	167
1932	212
1933	244
1934	375
1935	87
1936	699
1937	296
1938	304
1939	750
1940	444
1941	954
1942	382
1943	603
1944	321
1945	751
1946	492
1947	328
1948	296
1949	292
1950	1,042
1951	582
1952	474
1953	218
1954	355
1955	469
1956	363
1957	374
1958	347
1959	392
1960	585
1961	579
1962	284
1963	665
1964	348
1965	1,584
1966	540
1967	1,396
1968	915
1969	601
1970	533
1971	405
1972	1,028
1973	716
1974	694
1975	614
1976	538
1977	684
1978	1,003
1979	894
1980	588
1981	570
1982	1,284
1983	1,225
1984	446
1985	731
1986	626
1987	933
1988	1,001
1989	1,147
1990	1,478
1991	706
1992	789
1993	1,683
1994	960
1995	833
1996	518
1997	1,024
1998	1,144
1999	1,051
2000	524
2001	841
2002	1,562
2003	1,425
2004	1,232
2005	1,178
2006	551
2007	1,330
2008	1,066
2009	776
2010	678
2011	993
2012	3,348
2013	783
2014	701
2015	943
2016	675
2017	1,183
2018	921
2019	666
2020	672
2021	562
2022	476
2023	890
2024	843
2025	728
2026	2,870

Download the Data

Data for records on 1973-03-18: 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	560
50 to 100	40
100 to 150	14
150 to 200	7
200 to 250	5
250 to 300	1
300 to 350	1