Weather Records on 15 March 1943

639 weather records were set or tied worldwide on 15 March 1943. Highest significance: Britton, US.

Key Facts for 15 March 1943

On 15 March 1943, 639 weather records were set or tied at long-record stations worldwide.
135 were record highs and 160 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 19 monthly and 618 daily.
Britton set a daily record snowfall of 12.7 cm (5.0 in) on 15 March 1943.
Across 161 earlier years (1810 to 2026) the same calendar date averaged 485 records.

Record Map

639 stations

639 station records on 15 March 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 March 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Britton	United States	Record daily snowfall	12.7 cm (5.0 in)	57 of 100 (Notable)
St Ignace	United States	Record daily snowfall	25.9 cm (10.2 in)	56 of 100 (Notable)
Dubuque River	United States	Record daily precipitation	54.6 mm (2.1 in)	54 of 100 (Notable)
Wonnaminta	Australia	Record daily precipitation	47.0 mm (1.9 in)	53 of 100 (Notable)
Lake Mills Wwtp	United States	Record daily precipitation	41.1 mm (1.6 in)	52 of 100 (Notable)
Manistee 3SE	United States	Record daily precipitation	30.5 mm (1.2 in)	51 of 100 (Notable)
Wandering Comparison	Australia	Record daily precipitation	46.5 mm (1.8 in)	49 of 100 (Notable)
Portage la Prairie	Canada	Record low maximum temperature	-16.1 C (3.0 F)	47 of 100 (Notable)
Mandurah Park	Australia	Record daily precipitation	37.1 mm (1.5 in)	46 of 100 (Notable)
Prairie du Sac 2 N	United States	Record daily precipitation	26.7 mm (1.1 in)	46 of 100 (Notable)
Bridgetown Comparison	Australia	Record daily precipitation	49.5 mm (1.9 in)	45 of 100 (Notable)
Sundance	United States	Record daily snowfall	30.5 cm (12.0 in)	45 of 100 (Notable)
Perth Regional Office	Australia	Record daily precipitation	31.5 mm (1.2 in)	44 of 100 (Notable)
Pinjarra	Australia	Record daily precipitation	31.8 mm (1.3 in)	44 of 100 (Notable)
Jamestown State Hosp	United States	Record daily snowfall	14.7 cm (5.8 in)	44 of 100 (Notable)
Lake Muir	Australia	Record daily precipitation	41.4 mm (1.6 in)	43 of 100 (Notable)
Narrogin	Australia	Record daily precipitation	53.8 mm (2.1 in)	43 of 100 (Notable)
Guildford Post Office	Australia	Record daily precipitation	40.1 mm (1.6 in)	42 of 100 (Notable)
Rottnest Island Lighthouse	Australia	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Wilgarrup	Australia	Record daily precipitation	41.7 mm (1.6 in)	42 of 100 (Notable)
Cooeearup	Australia	Record daily precipitation	37.3 mm (1.5 in)	42 of 100 (Notable)
St Ignace	United States	Record daily precipitation	25.7 mm (1.0 in)	42 of 100 (Notable)
Hamel	Australia	Record daily precipitation	37.6 mm (1.5 in)	40 of 100 (Notable)
Brunswick Junction	Australia	Record daily precipitation	45.2 mm (1.8 in)	39 of 100 (Notable)
Tarnaby	Sweden	Record snow depth	212.0 cm (83.5 in)	39 of 100 (Notable)
Fosston 1 E	United States	Record daily precipitation	30.5 mm (1.2 in)	39 of 100 (Notable)
Madison Wb City	United States	Record daily precipitation	37.8 mm (1.5 in)	39 of 100 (Notable)
Arthur River	Australia	Record daily precipitation	34.3 mm (1.4 in)	38 of 100 (Notable)
Wattlegrove	Australia	Record daily precipitation	48.8 mm (1.9 in)	37 of 100 (Notable)
Belvoir	Australia	Record daily precipitation	28.4 mm (1.1 in)	36 of 100 (Notable)
Deeside	Australia	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Portage la Prairie	Canada	Record daily snowfall	21.6 cm (8.5 in)	36 of 100 (Notable)
Beloit	United States	Record daily precipitation	35.6 mm (1.4 in)	36 of 100 (Notable)
Kalamunda	Australia	Record daily precipitation	39.9 mm (1.6 in)	35 of 100 (Notable)
Harvey Post Office	Australia	Record daily precipitation	52.1 mm (2.1 in)	35 of 100 (Notable)
Williams	Australia	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Hastings	United States	Record daily precipitation	35.8 mm (1.4 in)	35 of 100 (Notable)
Traverse Cy Cherry Capital AP	United States	Record daily precipitation	31.2 mm (1.2 in)	35 of 100 (Notable)
Plymouth Wwtp	United States	Record daily precipitation	29.0 mm (1.1 in)	34 of 100 (Routine)
Denmark	Australia	Record daily precipitation	61.7 mm (2.4 in)	33 of 100 (Routine)
Sion	Canada	Record daily snowfall	17.8 cm (7.0 in)	33 of 100 (Routine)
Milbank 4 NW	United States	Record daily precipitation	25.4 mm (1.0 in)	33 of 100 (Routine)
Niulii 179	United States	Record low minimum temperature	12.2 C (54.0 F)	33 of 100 (Routine)
Woodperry	Australia	Record daily precipitation	36.8 mm (1.4 in)	32 of 100 (Routine)
Portage la Prairie	Canada	Record low minimum temperature	-18.9 C (-2.0 F)	32 of 100 (Routine)
Belmond	United States	Record daily precipitation	28.7 mm (1.1 in)	32 of 100 (Routine)
Linton	Australia	Record daily precipitation	37.8 mm (1.5 in)	31 of 100 (Routine)
Toledo 3N	United States	Record daily precipitation	41.9 mm (1.6 in)	31 of 100 (Routine)
Moorhead St Teachers C	United States	Record daily snowfall	7.6 cm (3.0 in)	31 of 100 (Routine)
Babb 6 NE	United States	Record low maximum temperature	-20.0 C (-4.0 F)	31 of 100 (Routine)
Brodhead Wwtp	United States	Record daily precipitation	45.7 mm (1.8 in)	31 of 100 (Routine)
Muskegon Co AP	United States	Record daily precipitation	26.4 mm (1.0 in)	31 of 100 (Routine)
Armadale	Australia	Record daily precipitation	26.9 mm (1.1 in)	30 of 100 (Routine)
Greenbushes	Australia	Record daily precipitation	38.6 mm (1.5 in)	30 of 100 (Routine)
Maranguape	Brazil	Record daily precipitation	78.0 mm (3.1 in)	30 of 100 (Routine)
Marengo	United States	Record daily precipitation	41.1 mm (1.6 in)	30 of 100 (Routine)
Grand Rapids Wb City	United States	Record daily precipitation	36.6 mm (1.4 in)	30 of 100 (Routine)
Mornington Mills	Australia	Record daily precipitation	52.1 mm (2.1 in)	29 of 100 (Routine)
Cut Bank AP	United States	Record low maximum temperature	-18.3 C (-0.9 F)	29 of 100 (Routine)
Mundaring	Australia	Record daily precipitation	26.7 mm (1.1 in)	28 of 100 (Routine)

Counts by Type and Timescale

639 records

Records set or tied on 15 March 1943 by type: Highest daily maximum 38, Lowest daily maximum 98, Highest daily minimum 97, Lowest daily minimum 62, Heaviest daily rainfall 265, Heaviest daily snowfall 64, Deepest snow cover 15.

Records on 15 March 1943 by type
Record type	Records
Highest daily maximum	38
Lowest daily maximum	98
Highest daily minimum	97
Lowest daily minimum	62
Heaviest daily rainfall	265
Heaviest daily snowfall	64
Deepest snow cover	15

Records on 15 March 1943 by timescale: all-time 2, monthly 19, daily 618.

How Much Records Were Beaten By

549 broken records

Margins by which the 549 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 590.0. Ties are not counted.

Top 20 by Significance

15 March 1943

Top 20 records on 15 March 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 March 1943	Britton, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	49 years	57 of 100 (Notable)
15 March 1943	St Ignace, US	daily snowfall	25.9 cm (10.2 in)	18.3 cm (7.2 in)	42 years	56 of 100 (Notable)
15 March 1943	Dubuque River, US	daily rain	54.6 mm (2.1 in)	33.8 mm (1.3 in)	24 years	54 of 100 (Notable)
15 March 1943	Wonnaminta, AU	daily rain	47.0 mm (1.9 in)	45.5 mm (1.8 in)	33 years	53 of 100 (Notable)
15 March 1943	Lake Mills Wwtp, US	daily rain	41.1 mm (1.6 in)	30.2 mm (1.2 in)	24 years	52 of 100 (Notable)
15 March 1943	Manistee 3SE, US	daily rain	30.5 mm (1.2 in)	20.8 mm (0.8 in)	52 years	51 of 100 (Notable)
15 March 1943	Wandering Comparison, AU	daily rain	46.5 mm (1.8 in)	43.2 mm (1.7 in)	16 years	49 of 100 (Notable)
15 March 1943	Portage la Prairie, CA	daily low max	-16.1 C (3.0 F)	19.4 C (34.9 F)	16 years	47 of 100 (Notable)
15 March 1943	Mandurah Park, AU	daily rain	37.1 mm (1.5 in)	34.6 mm (1.4 in)	16 years	46 of 100 (Notable)
15 March 1943	Prairie du Sac 2 N, US	daily rain	26.7 mm (1.1 in)	19.3 mm (0.8 in)	24 years	46 of 100 (Notable)
15 March 1943	Bridgetown Comparison, AU	daily rain	49.5 mm (1.9 in)	43.7 mm (1.7 in)	1 year	45 of 100 (Notable)
15 March 1943	Sundance, US	daily snowfall	30.5 cm (12.0 in)	17.8 cm (7.0 in)	46 years	45 of 100 (Notable)
15 March 1943	Perth Regional Office, AU	daily rain	31.5 mm (1.2 in)	30.2 mm (1.2 in)	4 years	44 of 100 (Notable)
15 March 1943	Pinjarra, AU	daily rain	31.8 mm (1.3 in)	28.0 mm (1.1 in)	16 years	44 of 100 (Notable)
15 March 1943	Jamestown State Hosp, US	daily snowfall	14.7 cm (5.8 in)	12.2 cm (4.8 in)	33 years	44 of 100 (Notable)
15 March 1943	Lake Muir, AU	daily rain	41.4 mm (1.6 in)	29.0 mm (1.1 in)	4 years	43 of 100 (Notable)
15 March 1943	Narrogin, AU	daily rain	53.8 mm (2.1 in)	45.9 mm (1.8 in)	4 years	43 of 100 (Notable)
15 March 1943	Guildford Post Office, AU	daily rain	40.1 mm (1.6 in)	38.6 mm (1.5 in)	4 years	42 of 100 (Notable)
15 March 1943	Rottnest Island Lighthouse, AU	daily rain	33.0 mm (1.3 in)	28.4 mm (1.1 in)	4 years	42 of 100 (Notable)
15 March 1943	Wilgarrup, AU	daily rain	41.7 mm (1.6 in)	28.7 mm (1.1 in)	0 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 1943

Records set or tied on this calendar date in each year from 1810 to 1943. 1943 had 639 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 1943-03-15: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 100	537
100 to 200	10
200 to 300	1
300 to 400	0
400 to 500	0
500 to 600	1