Weather Records on 11 March 1943

251 weather records were set or tied worldwide on 11 March 1943. Highest significance: Sion, CA.

Key Facts for 11 March 1943

On 11 March 1943, 251 weather records were set or tied at long-record stations worldwide.
68 were record highs and 67 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 2 monthly and 248 daily.
Sion set a daily record snowfall of 15.2 cm (6.0 in) on 11 March 1943.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 475 records.

Record Map

251 stations

251 station records on 11 March 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 March 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sion	Canada	Record daily snowfall	15.2 cm (6.0 in)	42 of 100 (Notable)
Greensburg	United States	Record daily precipitation	56.1 mm (2.2 in)	35 of 100 (Notable)
Jeffersonville	United States	Record daily precipitation	46.7 mm (1.8 in)	33 of 100 (Routine)
Saint John	Canada	Record daily precipitation	26.2 mm (1.0 in)	31 of 100 (Routine)
Tamluk	India	Record daily precipitation	48.8 mm (1.9 in)	31 of 100 (Routine)
Philo	United States	Record daily precipitation	27.7 mm (1.1 in)	29 of 100 (Routine)
Portage Wwtp	United States	Record low minimum temperature	-26.7 C (-16.1 F)	29 of 100 (Routine)
Vastervik	Sweden	Record high minimum temperature	5.0 C (41.0 F)	28 of 100 (Routine)
Dhubri	India	Record daily precipitation	35.6 mm (1.4 in)	27 of 100 (Routine)
Campsie	Canada	Record daily snowfall	12.7 cm (5.0 in)	26 of 100 (Routine)
Elkader 6 SSW	United States	Record low minimum temperature	-23.3 C (-9.9 F)	26 of 100 (Routine)
Worsham	United States	Record daily precipitation	57.2 mm (2.3 in)	26 of 100 (Routine)
Beloit	United States	Record low minimum temperature	-21.1 C (-6.0 F)	26 of 100 (Routine)
Vestervig	Denmark	Record high minimum temperature	4.7 C (40.5 F)	25 of 100 (Routine)
Kristianstad	Sweden	Record high minimum temperature	4.5 C (40.1 F)	25 of 100 (Routine)
Tarnaby	Sweden	Record snow depth	220.0 cm (86.6 in)	25 of 100 (Routine)
Hampton	United States	Record low minimum temperature	-21.1 C (-6.0 F)	25 of 100 (Routine)
Fond du Lac Wwtp	United States	Record low minimum temperature	-25.6 C (-14.1 F)	25 of 100 (Routine)
Hillsboro	United States	Record low minimum temperature	-30.6 C (-23.1 F)	25 of 100 (Routine)
Waukesha Wwtp	United States	Record low minimum temperature	-21.1 C (-6.0 F)	25 of 100 (Routine)
Northwood	United States	Record low minimum temperature	-22.8 C (-9.0 F)	24 of 100 (Routine)
Norwich	United States	Record daily snowfall	5.1 cm (2.0 in)	24 of 100 (Routine)
Prairie du Chien	United States	Record low minimum temperature	-22.2 C (-8.0 F)	24 of 100 (Routine)
Soro	India	Record daily precipitation	104.1 mm (4.1 in)	23 of 100 (Routine)
Mason City	United States	Record low minimum temperature	-26.1 C (-15.0 F)	23 of 100 (Routine)
Appleton	United States	Record low minimum temperature	-21.7 C (-7.1 F)	23 of 100 (Routine)
Brodhead Wwtp	United States	Record low minimum temperature	-26.1 C (-15.0 F)	23 of 100 (Routine)
La Crosse Wb City	United States	Record snow depth	25.4 cm (10.0 in)	23 of 100 (Routine)
Charters Towers Post Office	Australia	Record low minimum temperature	16.1 C (61.0 F)	22 of 100 (Routine)
Portage la Prairie	Canada	Record low maximum temperature	-1.7 C (28.9 F)	22 of 100 (Routine)
Azimganj	India	Record daily precipitation	25.4 mm (1.0 in)	22 of 100 (Routine)
Fayette	United States	Record low minimum temperature	-23.9 C (-11.0 F)	22 of 100 (Routine)
Grand River Lock	United States	Record low minimum temperature	-29.4 C (-20.9 F)	22 of 100 (Routine)
Oconto 4 W	United States	Record low minimum temperature	-23.3 C (-9.9 F)	22 of 100 (Routine)
Watertown Wwtp	United States	Record low minimum temperature	-20.6 C (-5.1 F)	22 of 100 (Routine)
Susendal	Norway	Record snow depth	183.0 cm (72.0 in)	21 of 100 (Routine)
Boras	Sweden	Record high minimum temperature	2.5 C (36.5 F)	21 of 100 (Routine)
Vanersborg	Sweden	Record high minimum temperature	4.0 C (39.2 F)	21 of 100 (Routine)
Stockholm	Sweden	Record high minimum temperature	5.4 C (41.7 F)	21 of 100 (Routine)
Sac City	United States	Record low minimum temperature	-15.6 C (3.9 F)	21 of 100 (Routine)
Spencer 1 N	United States	Record snow depth	76.2 cm (30.0 in)	21 of 100 (Routine)
Philo 3 SW	United States	Record daily precipitation	27.7 mm (1.1 in)	21 of 100 (Routine)
Oshkosh	United States	Record low minimum temperature	-25.0 C (-13.0 F)	21 of 100 (Routine)
Scottsbluff W B Heilig Fld AP	United States	Record low minimum temperature	-26.7 C (-16.1 F)	21 of 100 (Routine)
Maristova	Norway	Record daily precipitation	24.0 mm (0.9 in)	20 of 100 (Routine)
Santa Fe	United States	Record daily precipitation	13.0 mm (0.5 in)	20 of 100 (Routine)
Eersterivier (Bos)	South Africa	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Rawsonville (Pol)	South Africa	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Eastport	United States	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Kjobli I Snaasa	Norway	Record daily precipitation	17.4 mm (0.7 in)	20 of 100 (Routine)
Campsie	Canada	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Giddalore	India	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Simga	India	Record daily precipitation	16.5 mm (0.6 in)	20 of 100 (Routine)
Dennison Wtr Wks	United States	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Aurora Water	United States	Record snow depth	7.6 cm (3.0 in)	20 of 100 (Routine)
Palakonda	India	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Namdalseid	Norway	Record daily precipitation	17.6 mm (0.7 in)	20 of 100 (Routine)
Victoria River Downs	Australia	Record daily precipitation	20.8 mm (0.8 in)	20 of 100 (Routine)
Cherapalaseri	India	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Boko	India	Record daily precipitation	29.2 mm (1.1 in)	20 of 100 (Routine)

Counts by Type and Timescale

251 records

Records set or tied on 11 March 1943 by type: Highest daily maximum 12, Lowest daily maximum 3, Highest daily minimum 56, Lowest daily minimum 64, Heaviest daily rainfall 90, Heaviest daily snowfall 11, Deepest snow cover 15.

Records on 11 March 1943 by type
Record type	Records
Highest daily maximum	12
Lowest daily maximum	3
Highest daily minimum	56
Lowest daily minimum	64
Heaviest daily rainfall	90
Heaviest daily snowfall	11
Deepest snow cover	15

Records on 11 March 1943 by timescale: all-time 1, monthly 2, daily 248.

How Much Records Were Beaten By

203 broken records

Margins by which the 203 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 800.0. Ties are not counted.

Top 20 by Significance

11 March 1943

Top 20 records on 11 March 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 March 1943	Sion, CA	daily snowfall	15.2 cm (6.0 in)	11.4 cm (4.5 in)	29 years	42 of 100 (Notable)
11 March 1943	Greensburg, US	daily rain	56.1 mm (2.2 in)	27.7 mm (1.1 in)	28 years	35 of 100 (Notable)
11 March 1943	Jeffersonville, US	daily rain	46.7 mm (1.8 in)	23.1 mm (0.9 in)	28 years	33 of 100 (Routine)
11 March 1943	Saint John, CA	daily rain	26.2 mm (1.0 in)	6.6 mm (0.26 in)	61 years	31 of 100 (Routine)
11 March 1943	Tamluk, IN	daily rain	48.8 mm (1.9 in)	37.9 mm (1.5 in)	17 years	31 of 100 (Routine)
11 March 1943	Philo, US	daily rain	27.7 mm (1.1 in)	12.5 mm (0.5 in)	40 years	29 of 100 (Routine)
11 March 1943	Portage Wwtp, US	daily low min	-26.7 C (-16.1 F)	8.9 C (16.0 F)	37 years	29 of 100 (Routine)
11 March 1943	Vastervik, SE	daily high min	5.0 C (41.0 F)	2.0 C (3.6 F)	60 years	28 of 100 (Routine)
11 March 1943	Dhubri, IN	daily rain	35.6 mm (1.4 in)	21.4 mm (0.8 in)	13 years	27 of 100 (Routine)
11 March 1943	Campsie, CA	daily snowfall	12.7 cm (5.0 in)	5.3 cm (2.1 in)	20 years	26 of 100 (Routine)
11 March 1943	Elkader 6 SSW, US	daily low min	-23.3 C (-9.9 F)	6.6 C (11.9 F)	37 years	26 of 100 (Routine)
11 March 1943	Worsham, US	daily rain	57.2 mm (2.3 in)	24.2 mm (1.0 in)	20 years	26 of 100 (Routine)
11 March 1943	Beloit, US	daily low min	-21.1 C (-6.0 F)	4.4 C (7.9 F)	46 years	26 of 100 (Routine)
11 March 1943	Vestervig, DK	daily high min	4.7 C (40.5 F)	0.2 C (0.4 F)	60 years	25 of 100 (Routine)
11 March 1943	Kristianstad, SE	daily high min	4.5 C (40.1 F)	0.5 C (0.9 F)	60 years	25 of 100 (Routine)
11 March 1943	Tarnaby, SE	all-time snow depth	220.0 cm (86.6 in)	1.0 cm (0.4 in)	0 years	25 of 100 (Routine)
11 March 1943	Hampton, US	daily low min	-21.1 C (-6.0 F)	5.5 C (9.9 F)	37 years	25 of 100 (Routine)
11 March 1943	Fond du Lac Wwtp, US	daily low min	-25.6 C (-14.1 F)	6.7 C (12.1 F)	33 years	25 of 100 (Routine)
11 March 1943	Hillsboro, US	daily low min	-30.6 C (-23.1 F)	7.3 C (13.1 F)	33 years	25 of 100 (Routine)
11 March 1943	Waukesha Wwtp, US	daily low min	-21.1 C (-6.0 F)	5.5 C (9.9 F)	37 years	25 of 100 (Routine)

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

1793 to 1943

Records set or tied on this calendar date in each year from 1793 to 1943. 1943 had 251 records.

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

Records on 03-11 in each year
Year	Records
1793	1
1810	3
1814	1
1822	1
1844	1
1845	2
1847	3
1849	1
1850	2
1854	3
1855	1
1858	3
1859	1
1860	2
1862	1
1863	1
1868	1
1870	1
1874	2
1877	1
1878	1
1879	2
1880	1
1881	5
1882	2
1883	1
1884	1
1885	2
1886	3
1888	4
1889	1
1890	4
1891	5
1892	3
1893	2
1894	6
1896	4
1897	4
1898	2
1899	1
1900	4
1901	13
1902	8
1903	12
1904	7
1905	6
1906	38
1907	7
1908	10
1909	26
1910	19
1911	19
1912	19
1913	22
1914	25
1915	18
1916	29
1917	49
1918	58
1919	39
1920	15
1921	66
1922	42
1923	78
1924	265
1925	264
1926	134
1927	277
1928	119
1929	210
1930	105
1931	273
1932	1,123
1933	300
1934	764
1935	520
1936	356
1937	188
1938	120
1939	569
1940	417
1941	265
1942	225
1943	251
1944	304
1945	262
1946	461
1947	234
1948	2,148
1949	329
1950	671
1951	677
1952	804
1953	330
1954	489
1955	1,103
1956	964
1957	521
1958	441
1959	189
1960	1,115
1961	353
1962	674
1963	440
1964	296
1965	386
1966	539
1967	1,272
1968	519
1969	1,093
1970	389
1971	552
1972	1,320
1973	1,406
1974	956
1975	592
1976	375
1977	1,690
1978	579
1979	891
1980	472
1981	1,539
1982	807
1983	943
1984	743
1985	829
1986	747
1987	596
1988	1,176
1989	1,894
1990	2,496
1991	532
1992	1,083
1993	561
1994	689
1995	1,138
1996	1,339
1997	1,152
1998	2,609
1999	533
2000	1,199
2001	802
2002	736
2003	935
2004	826
2005	988
2006	1,590
2007	830
2008	816
2009	1,195
2010	966
2011	734
2012	868
2013	949
2014	556
2015	897
2016	1,249
2017	483
2018	479
2019	767
2020	605
2021	980
2022	1,203
2023	984
2024	424
2025	699
2026	1,580

Download the Data

Data for records on 1943-03-11: 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	198
100 to 200	1
200 to 300	1
300 to 400	1
400 to 500	0
500 to 600	0
600 to 700	0
700 to 800	2