Weather Records on 15 March 1974

439 weather records were set or tied worldwide on 15 March 1974. Highest significance: Tonala (Smn), MX.

Key Facts for 15 March 1974

On 15 March 1974, 439 weather records were set or tied at long-record stations worldwide.
151 were record highs and 42 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 430 daily.
Tonala (Smn) set a daily record precipitation of 66.8 mm (2.6 in) on 15 March 1974.
Across 161 earlier years (1810 to 2026) the same calendar date averaged 486 records.

Record Map

439 stations

439 station records on 15 March 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 March 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tonala (Smn)	Mexico	Record daily precipitation	66.8 mm (2.6 in)	60 of 100 (Major)
Seattle Urban Site	United States	Record daily precipitation	32.0 mm (1.3 in)	55 of 100 (Notable)
Pedro Escobedo	Mexico	Record daily precipitation	45.0 mm (1.8 in)	52 of 100 (Notable)
Alice	United States	Record daily precipitation	50.8 mm (2.0 in)	52 of 100 (Notable)
Encinal	United States	Record daily precipitation	50.8 mm (2.0 in)	52 of 100 (Notable)
Rietbron (Mun)	South Africa	Record daily precipitation	51.5 mm (2.0 in)	51 of 100 (Notable)
Caetite	Brazil	Record daily precipitation	85.4 mm (3.4 in)	50 of 100 (Notable)
Redmond 2 W	United States	Record daily snowfall	7.6 cm (3.0 in)	46 of 100 (Notable)
Itiuba	Brazil	Record daily precipitation	97.4 mm (3.8 in)	45 of 100 (Notable)
Saanichton Cda	Canada	Record daily precipitation	32.5 mm (1.3 in)	44 of 100 (Notable)
James Island	Canada	Record daily precipitation	31.0 mm (1.2 in)	43 of 100 (Notable)
Melitopol	Ukraine	Record daily precipitation	25.5 mm (1.0 in)	43 of 100 (Notable)
Crystal City	United States	Record daily precipitation	41.7 mm (1.6 in)	43 of 100 (Notable)
Pio IX (Patrocinio)	Brazil	Record daily precipitation	75.8 mm (3.0 in)	42 of 100 (Notable)
Lammerkraal	South Africa	Record daily precipitation	33.5 mm (1.3 in)	42 of 100 (Notable)
Afogados da Ingazeira (Dnocs)	Brazil	Record daily precipitation	71.0 mm (2.8 in)	41 of 100 (Notable)
Palmietfontein"Knap Draai	South Africa	Record daily precipitation	48.0 mm (1.9 in)	41 of 100 (Notable)
Tunnel Camp	Canada	Record daily precipitation	77.5 mm (3.1 in)	40 of 100 (Notable)
Fauquier	Canada	Record daily snowfall	5.6 cm (2.2 in)	40 of 100 (Notable)
Itajobi	Brazil	Record daily precipitation	58.2 mm (2.3 in)	39 of 100 (Notable)
Vancouver Int'l A	Canada	Record daily precipitation	36.3 mm (1.4 in)	38 of 100 (Notable)
Nakusp	Canada	Record daily snowfall	15.7 cm (6.2 in)	38 of 100 (Notable)
Groblershoop;Boegoeb	South Africa	Record daily precipitation	47.5 mm (1.9 in)	37 of 100 (Notable)
Winter Park	United States	Record daily precipitation	25.4 mm (1.0 in)	36 of 100 (Notable)
Clearwater	United States	Record daily precipitation	99.6 mm (3.9 in)	36 of 100 (Notable)
Republic	United States	Record daily snowfall	5.8 cm (2.3 in)	36 of 100 (Notable)
Itapiuna	Brazil	Record daily precipitation	79.8 mm (3.1 in)	35 of 100 (Notable)
Vancouver Pmo	Canada	Record daily precipitation	58.2 mm (2.3 in)	35 of 100 (Notable)
Rifle	United States	Record high minimum temperature	6.7 C (44.1 F)	34 of 100 (Routine)
Yampa	United States	Record daily snowfall	14.0 cm (5.5 in)	34 of 100 (Routine)
Nicosia	Cyprus	Record high minimum temperature	13.5 C (56.3 F)	33 of 100 (Routine)
Soldier Summit	United States	Record high minimum temperature	0.6 C (33.1 F)	33 of 100 (Routine)
W Palm Beach Intl AP	United States	Record daily precipitation	57.2 mm (2.3 in)	32 of 100 (Routine)
Ribeirao Bonito	Brazil	Record daily precipitation	66.9 mm (2.6 in)	31 of 100 (Routine)
Remanso	Brazil	Record daily precipitation	66.2 mm (2.6 in)	31 of 100 (Routine)
Uaua	Brazil	Record daily precipitation	46.0 mm (1.8 in)	31 of 100 (Routine)
Rio de Contas	Brazil	Record daily precipitation	39.7 mm (1.6 in)	31 of 100 (Routine)
Ioco Refinery	Canada	Record daily precipitation	73.2 mm (2.9 in)	31 of 100 (Routine)
Heartsease	South Africa	Record daily precipitation	38.5 mm (1.5 in)	31 of 100 (Routine)
Utah Lake Lehi	United States	Record high minimum temperature	3.9 C (39.0 F)	31 of 100 (Routine)
Pachena Point	Canada	Record daily precipitation	117.1 mm (4.6 in)	30 of 100 (Routine)
Britannia Beach Furry Cr	Canada	Record daily precipitation	63.2 mm (2.5 in)	30 of 100 (Routine)
Port Stanley	Canada	Record daily snowfall	7.4 cm (2.9 in)	30 of 100 (Routine)
Blaine	United States	Record daily precipitation	26.4 mm (1.0 in)	30 of 100 (Routine)
Pao de Acucar	Brazil	Record daily precipitation	31.1 mm (1.2 in)	29 of 100 (Routine)
Paramirim	Brazil	Record daily precipitation	56.2 mm (2.2 in)	29 of 100 (Routine)
Niekerkshoop (Pol)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	29 of 100 (Routine)
Grand Junction Walker Fld	United States	Record high minimum temperature	6.1 C (43.0 F)	29 of 100 (Routine)
Chilliwack	Canada	Record daily precipitation	53.6 mm (2.1 in)	28 of 100 (Routine)
Garibaldi	Canada	Record daily precipitation	62.7 mm (2.5 in)	27 of 100 (Routine)
Greenwood	Canada	Record daily snowfall	6.4 cm (2.5 in)	27 of 100 (Routine)
Irene Mtn Wauconda	United States	Record daily snowfall	7.4 cm (2.9 in)	27 of 100 (Routine)
Puyallup 2 W Exp STN	United States	Record daily precipitation	27.2 mm (1.1 in)	27 of 100 (Routine)
Dillon 1 E	United States	Record high minimum temperature	-1.7 C (28.9 F)	26 of 100 (Routine)
Steamboat Springs	United States	Record high minimum temperature	0.0 C (32.0 F)	26 of 100 (Routine)
Old Forge	United States	Record low minimum temperature	-20.6 C (-5.1 F)	26 of 100 (Routine)
Kowanyama Airport	Australia	Record daily precipitation	65.0 mm (2.6 in)	25 of 100 (Routine)
Seymour Falls	Canada	Record daily precipitation	102.4 mm (4.0 in)	25 of 100 (Routine)
Blue River North	Canada	Record daily snowfall	20.1 cm (7.9 in)	25 of 100 (Routine)
Saaifontein	South Africa	Record daily precipitation	28.5 mm (1.1 in)	25 of 100 (Routine)

Counts by Type and Timescale

439 records

Records set or tied on 15 March 1974 by type: Highest daily maximum 50, Lowest daily maximum 19, Highest daily minimum 101, Lowest daily minimum 23, Heaviest daily rainfall 213, Heaviest daily snowfall 31, Deepest snow cover 2.

Records on 15 March 1974 by type
Record type	Records
Highest daily maximum	50
Lowest daily maximum	19
Highest daily minimum	101
Lowest daily minimum	23
Heaviest daily rainfall	213
Heaviest daily snowfall	31
Deepest snow cover	2

Records on 15 March 1974 by timescale: all-time 0, monthly 9, daily 430.

How Much Records Were Beaten By

347 broken records

Margins by which the 347 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 229.0. Ties are not counted.

Top 20 by Significance

15 March 1974

Top 20 records on 15 March 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 March 1974	Tonala (Smn), MX	daily rain	66.8 mm (2.6 in)	66.8 mm (2.6 in)	52 years	60 of 100 (Major)
15 March 1974	Seattle Urban Site, US	daily rain	32.0 mm (1.3 in)	15.2 mm (0.6 in)	79 years	55 of 100 (Notable)
15 March 1974	Pedro Escobedo, MX	daily rain	45.0 mm (1.8 in)	45.0 mm (1.8 in)	31 years	52 of 100 (Notable)
15 March 1974	Alice, US	daily rain	50.8 mm (2.0 in)	34.8 mm (1.4 in)	44 years	52 of 100 (Notable)
15 March 1974	Encinal, US	daily rain	50.8 mm (2.0 in)	41.9 mm (1.6 in)	48 years	52 of 100 (Notable)
15 March 1974	Rietbron (Mun), ZA	daily rain	51.5 mm (2.0 in)	39.8 mm (1.6 in)	17 years	51 of 100 (Notable)
15 March 1974	Caetite, BR	daily rain	85.4 mm (3.4 in)	71.4 mm (2.8 in)	15 years	50 of 100 (Notable)
15 March 1974	Redmond 2 W, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	61 years	46 of 100 (Notable)
15 March 1974	Itiuba, BR	daily rain	97.4 mm (3.8 in)	83.3 mm (3.3 in)	16 years	45 of 100 (Notable)
15 March 1974	Saanichton Cda, CA	daily rain	32.5 mm (1.3 in)	19.8 mm (0.8 in)	7 years	44 of 100 (Notable)
15 March 1974	James Island, CA	daily rain	31.0 mm (1.2 in)	11.9 mm (0.5 in)	56 years	43 of 100 (Notable)
15 March 1974	Melitopol, UA	daily rain	25.5 mm (1.0 in)	16.5 mm (0.6 in)	0 years	43 of 100 (Notable)
15 March 1974	Crystal City, US	daily rain	41.7 mm (1.6 in)	31.3 mm (1.2 in)	29 years	43 of 100 (Notable)
15 March 1974	Pio IX (Patrocinio), BR	daily rain	75.8 mm (3.0 in)	41.3 mm (1.6 in)	49 years	42 of 100 (Notable)
15 March 1974	Lammerkraal, ZA	daily rain	33.5 mm (1.3 in)	27.0 mm (1.1 in)	17 years	42 of 100 (Notable)
15 March 1974	Afogados da Ingazeira (Dnocs), BR	daily rain	71.0 mm (2.8 in)	37.2 mm (1.5 in)	49 years	41 of 100 (Notable)
15 March 1974	Palmietfontein"Knap Draai, ZA	daily rain	48.0 mm (1.9 in)	41.5 mm (1.6 in)	1 year	41 of 100 (Notable)
15 March 1974	Tunnel Camp, CA	daily rain	77.5 mm (3.1 in)	35.1 mm (1.4 in)	33 years	40 of 100 (Notable)
15 March 1974	Fauquier, CA	daily snowfall	5.6 cm (2.2 in)	5.6 cm (2.2 in)	60 years	40 of 100 (Notable)
15 March 1974	Itajobi, BR	daily rain	58.2 mm (2.3 in)	40.7 mm (1.6 in)	28 years	39 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 1974

Records set or tied on this calendar date in each year from 1810 to 1974. 1974 had 439 records.

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

Records on 03-15 in each year
Year	Records
1810	1
1813	1
1825	1
1826	1
1828	1
1835	1
1836	2
1839	1
1840	1
1845	3
1846	1
1850	1
1852	2
1854	1
1859	3
1863	1
1867	1
1869	1
1878	1
1882	3
1883	1
1884	3
1886	1
1887	1
1888	3
1889	3
1890	3
1891	5
1892	6
1893	5
1894	1
1895	4
1896	5
1898	3
1899	5
1900	12
1901	11
1902	14
1903	9
1904	6
1905	14
1906	36
1907	16
1908	43
1909	13
1910	23
1911	27
1912	51
1913	79
1914	32
1915	11
1916	34
1917	36
1918	81
1919	40
1920	43
1921	140
1922	39
1923	134
1924	145
1925	72
1926	169
1927	332
1928	193
1929	267
1930	240
1931	122
1932	610
1933	167
1934	298
1935	617
1936	298
1937	711
1938	505
1939	336
1940	340
1941	259
1942	399
1943	639
1944	622
1945	895
1946	915
1947	374
1948	198
1949	409
1950	249
1951	334
1952	358
1953	298
1954	340
1955	419
1956	534
1957	485
1958	431
1959	348
1960	972
1961	430
1962	585
1963	297
1964	411
1965	174
1966	893
1967	831
1968	545
1969	933
1970	541
1971	772
1972	814
1973	1,074
1974	439
1975	713
1976	220
1977	787
1978	566
1979	997
1980	503
1981	799
1982	997
1983	844
1984	638
1985	519
1986	771
1987	687
1988	1,599
1989	1,221
1990	2,255
1991	852
1992	1,131
1993	3,353
1994	1,405
1995	1,372
1996	706
1997	1,500
1998	847
1999	1,269
2000	458
2001	930
2002	1,317
2003	1,157
2004	1,046
2005	1,099
2006	688
2007	1,420
2008	903
2009	744
2010	675
2011	730
2012	2,297
2013	1,486
2014	397
2015	1,573
2016	948
2017	1,497
2018	538
2019	861
2020	1,128
2021	916
2022	491
2023	768
2024	1,401
2025	1,162
2026	877

Download the Data

Data for records on 1974-03-15: 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	335
50 to 100	11
100 to 150	0
150 to 200	0
200 to 250	1