Weather Records on 18 March 1974

694 weather records were set or tied worldwide on 18 March 1974. Highest significance: Canton 4 SE, US.

Key Facts for 18 March 1974

On 18 March 1974, 694 weather records were set or tied at long-record stations worldwide.
291 were record highs and 21 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 23 monthly and 670 daily.
Canton 4 SE set a daily record snowfall of 31.8 cm (12.5 in) on 18 March 1974.
Across 160 earlier years (1806 to 2026) the same calendar date averaged 476 records.

Record Map

694 stations

694 station records on 18 March 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 March 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Canton 4 SE	United States	Record daily snowfall	31.8 cm (12.5 in)	61 of 100 (Major)
Myrup	Australia	Record daily precipitation	37.0 mm (1.5 in)	55 of 100 (Notable)
Piratininga	Brazil	Record daily precipitation	148.5 mm (5.8 in)	54 of 100 (Notable)
Barao de Antonina	Brazil	Record daily precipitation	80.5 mm (3.2 in)	51 of 100 (Notable)
Cardston	Canada	Record daily snowfall	18.0 cm (7.1 in)	51 of 100 (Notable)
Grauna	Brazil	Record daily precipitation	89.9 mm (3.5 in)	50 of 100 (Notable)
Jau	Brazil	Record daily precipitation	83.8 mm (3.3 in)	50 of 100 (Notable)
Presidente Alves	Brazil	Record daily precipitation	117.7 mm (4.6 in)	50 of 100 (Notable)
Ibirarema	Brazil	Record daily precipitation	109.3 mm (4.3 in)	50 of 100 (Notable)
Cincinnatus	United States	Record daily snowfall	30.5 cm (12.0 in)	50 of 100 (Notable)
Charqueada	Brazil	Record daily precipitation	110.8 mm (4.4 in)	49 of 100 (Notable)
Guaianas	Brazil	Record daily precipitation	79.5 mm (3.1 in)	49 of 100 (Notable)
Visconde de Rio Claro	Brazil	Record daily precipitation	80.0 mm (3.1 in)	48 of 100 (Notable)
De Ruyter 4 N	United States	Record daily snowfall	20.3 cm (8.0 in)	48 of 100 (Notable)
Tiete	Brazil	Record daily precipitation	77.2 mm (3.0 in)	47 of 100 (Notable)
Santa Lucia	Brazil	Record daily precipitation	70.2 mm (2.8 in)	47 of 100 (Notable)
Engenheiro Maia	Brazil	Record daily precipitation	95.2 mm (3.7 in)	46 of 100 (Notable)
Dois Corregos	Brazil	Record daily precipitation	100.2 mm (3.9 in)	45 of 100 (Notable)
Sao Manuel	Brazil	Record daily precipitation	114.5 mm (4.5 in)	45 of 100 (Notable)
Lucan	Canada	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Skaneateles	United States	Record daily snowfall	33.0 cm (13.0 in)	45 of 100 (Notable)
Fazenda Monte Alegre	Brazil	Record daily precipitation	81.8 mm (3.2 in)	44 of 100 (Notable)
Santa Gertrudes	Brazil	Record daily precipitation	72.7 mm (2.9 in)	44 of 100 (Notable)
Barra Do Gil (I.de Itaparica)	Brazil	Record daily precipitation	64.5 mm (2.5 in)	43 of 100 (Notable)
Pirassununga	Brazil	Record daily precipitation	84.3 mm (3.3 in)	43 of 100 (Notable)
Cafelandia	Brazil	Record daily precipitation	76.5 mm (3.0 in)	43 of 100 (Notable)
Wanakena Rngr School	United States	Record daily snowfall	41.9 cm (16.5 in)	43 of 100 (Notable)
Usina Gaviao Peixoto (Cpfl)	Brazil	Record daily precipitation	121.7 mm (4.8 in)	40 of 100 (Notable)
Sitio Do Mato	Brazil	Record daily precipitation	70.0 mm (2.8 in)	40 of 100 (Notable)
Taguai (Ribeiropolis)	Brazil	Record daily precipitation	66.4 mm (2.6 in)	38 of 100 (Notable)
Caninde de Sao Francisco	Brazil	Record daily precipitation	40.4 mm (1.6 in)	38 of 100 (Notable)
Elliot	South Africa	Record daily precipitation	43.0 mm (1.7 in)	38 of 100 (Notable)
Usina Tres Saltos (Cpfl)	Brazil	Record daily precipitation	72.6 mm (2.9 in)	37 of 100 (Notable)
Fernao Dias	Brazil	Record daily precipitation	67.5 mm (2.7 in)	37 of 100 (Notable)
Petrolandia (Itaparica)	Brazil	Record daily precipitation	77.0 mm (3.0 in)	37 of 100 (Notable)
Manassa	United States	Record high minimum temperature	3.3 C (37.9 F)	37 of 100 (Notable)
Reginopolis	Brazil	Record daily precipitation	128.8 mm (5.1 in)	36 of 100 (Notable)
Usina Do Lobo	Brazil	Record daily precipitation	64.3 mm (2.5 in)	36 of 100 (Notable)
Analandia	Brazil	Record daily precipitation	58.2 mm (2.3 in)	36 of 100 (Notable)
Ribeirao Bonito	Brazil	Record daily precipitation	51.5 mm (2.0 in)	36 of 100 (Notable)
Salto de Pirapora	Brazil	Record daily precipitation	127.2 mm (5.0 in)	36 of 100 (Notable)
Fazenda Vista Redonda	Brazil	Record daily precipitation	57.9 mm (2.3 in)	36 of 100 (Notable)
Ibiuna	Brazil	Record daily precipitation	95.1 mm (3.7 in)	36 of 100 (Notable)
Bairro Represa	Brazil	Record daily precipitation	62.1 mm (2.4 in)	36 of 100 (Notable)
Makwassie	South Africa	Record daily precipitation	49.5 mm (1.9 in)	36 of 100 (Notable)
Stillwater Rsvr	United States	Record daily snowfall	38.1 cm (15.0 in)	36 of 100 (Notable)
Tomazina	Brazil	Record daily precipitation	67.0 mm (2.6 in)	35 of 100 (Notable)
Colina	Brazil	Record daily precipitation	75.6 mm (3.0 in)	35 of 100 (Notable)
Guaicara	Brazil	Record daily precipitation	76.7 mm (3.0 in)	35 of 100 (Notable)
Sacaton	United States	Record high minimum temperature	16.7 C (62.1 F)	35 of 100 (Notable)
Rocky Ford 2 SE	United States	Record high minimum temperature	6.1 C (43.0 F)	35 of 100 (Notable)
Elephant Butte Dam	United States	Record high maximum temperature	31.1 C (88.0 F)	35 of 100 (Notable)
Juquia	Brazil	Record daily precipitation	60.7 mm (2.4 in)	34 of 100 (Routine)
Usina Amalia	Brazil	Record daily precipitation	58.9 mm (2.3 in)	34 of 100 (Routine)
Cabralia Paulista	Brazil	Record daily precipitation	84.8 mm (3.3 in)	34 of 100 (Routine)
Laranjeiras	Brazil	Record daily precipitation	61.6 mm (2.4 in)	34 of 100 (Routine)
Escalante	United States	Record high minimum temperature	5.6 C (42.1 F)	34 of 100 (Routine)
Colonia Baixa (Usina Amalia)	Brazil	Record daily precipitation	74.6 mm (2.9 in)	33 of 100 (Routine)
Itaju	Brazil	Record daily precipitation	74.6 mm (2.9 in)	33 of 100 (Routine)
Vila Carmem	Brazil	Record daily precipitation	59.2 mm (2.3 in)	33 of 100 (Routine)

Counts by Type and Timescale

694 records

Records set or tied on 18 March 1974 by type: Highest daily maximum 141, Lowest daily maximum 14, Highest daily minimum 150, Lowest daily minimum 7, Heaviest daily rainfall 334, Heaviest daily snowfall 47, Deepest snow cover 1.

Records on 18 March 1974 by type
Record type	Records
Highest daily maximum	141
Lowest daily maximum	14
Highest daily minimum	150
Lowest daily minimum	7
Heaviest daily rainfall	334
Heaviest daily snowfall	47
Deepest snow cover	1

Records on 18 March 1974 by timescale: all-time 1, monthly 23, daily 670.

How Much Records Were Beaten By

608 broken records

Margins by which the 608 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 239.0. Ties are not counted.

Top 20 by Significance

18 March 1974

Top 20 records on 18 March 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 March 1974	Canton 4 SE, US	daily snowfall	31.8 cm (12.5 in)	23.9 cm (9.4 in)	44 years	61 of 100 (Major)
18 March 1974	Myrup, AU	daily rain	37.0 mm (1.5 in)	21.0 mm (0.8 in)	59 years	55 of 100 (Notable)
18 March 1974	Piratininga, BR	monthly rain	148.5 mm (5.8 in)	74.9 mm (2.9 in)	4 years	54 of 100 (Notable)
18 March 1974	Barao de Antonina, BR	daily rain	80.5 mm (3.2 in)	58.9 mm (2.3 in)	27 years	51 of 100 (Notable)
18 March 1974	Cardston, CA	daily snowfall	18.0 cm (7.1 in)	13.9 cm (5.5 in)	36 years	51 of 100 (Notable)
18 March 1974	Grauna, BR	daily rain	89.9 mm (3.5 in)	66.3 mm (2.6 in)	24 years	50 of 100 (Notable)
18 March 1974	Jau, BR	daily rain	83.8 mm (3.3 in)	54.8 mm (2.2 in)	24 years	50 of 100 (Notable)
18 March 1974	Presidente Alves, BR	daily rain	117.7 mm (4.6 in)	72.7 mm (2.9 in)	24 years	50 of 100 (Notable)
18 March 1974	Ibirarema, BR	daily rain	109.3 mm (4.3 in)	80.1 mm (3.2 in)	24 years	50 of 100 (Notable)
18 March 1974	Cincinnatus, US	daily snowfall	30.5 cm (12.0 in)	22.9 cm (9.0 in)	24 years	50 of 100 (Notable)
18 March 1974	Charqueada, BR	monthly rain	110.8 mm (4.4 in)	40.8 mm (1.6 in)	23 years	49 of 100 (Notable)
18 March 1974	Guaianas, BR	daily rain	79.5 mm (3.1 in)	68.2 mm (2.7 in)	23 years	49 of 100 (Notable)
18 March 1974	Visconde de Rio Claro, BR	daily rain	80.0 mm (3.1 in)	61.2 mm (2.4 in)	24 years	48 of 100 (Notable)
18 March 1974	De Ruyter 4 N, US	daily snowfall	20.3 cm (8.0 in)	13.9 cm (5.5 in)	63 years	48 of 100 (Notable)
18 March 1974	Tiete, BR	daily rain	77.2 mm (3.0 in)	62.4 mm (2.5 in)	15 years	47 of 100 (Notable)
18 March 1974	Santa Lucia, BR	daily rain	70.2 mm (2.8 in)	56.0 mm (2.2 in)	29 years	47 of 100 (Notable)
18 March 1974	Engenheiro Maia, BR	monthly rain	95.2 mm (3.7 in)	38.3 mm (1.5 in)	2 years	46 of 100 (Notable)
18 March 1974	Dois Corregos, BR	daily rain	100.2 mm (3.9 in)	66.2 mm (2.6 in)	12 years	45 of 100 (Notable)
18 March 1974	Sao Manuel, BR	daily rain	114.5 mm (4.5 in)	66.4 mm (2.6 in)	15 years	45 of 100 (Notable)
18 March 1974	Lucan, CA	daily snowfall	7.6 cm (3.0 in)	2.5 cm (1.0 in)	101 years	45 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 1974

Records set or tied on this calendar date in each year from 1806 to 1974. 1974 had 694 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 1974-03-18: 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	576
50 to 100	23
100 to 150	3
150 to 200	3
200 to 250	3