Weather Records on 11 March 1941

265 weather records were set or tied worldwide on 11 March 1941. Highest significance: Toronto, CA.

Key Facts for 11 March 1941

On 11 March 1941, 265 weather records were set or tied at long-record stations worldwide.
34 were record highs and 10 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 260 daily.
Toronto set a daily record snowfall of 20.1 cm (7.9 in) on 11 March 1941.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 475 records.

Record Map

265 stations

265 station records on 11 March 1941 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 March 1941: highest significance records shown on the map
Station	Country	Type	Value	Significance
Toronto	Canada	Record daily snowfall	20.1 cm (7.9 in)	65 of 100 (Major)
Prairie du Chien	United States	Record daily snowfall	22.9 cm (9.0 in)	57 of 100 (Notable)
Cedar Rapids #1	United States	Record daily snowfall	19.1 cm (7.5 in)	54 of 100 (Notable)
Collingwood	Canada	Record daily snowfall	21.6 cm (8.5 in)	52 of 100 (Notable)
Barkestad	Norway	Record daily precipitation	40.8 mm (1.6 in)	45 of 100 (Notable)
Hillsboro	United States	Record daily snowfall	22.9 cm (9.0 in)	45 of 100 (Notable)
Dubuque River	United States	Record daily snowfall	23.9 cm (9.4 in)	45 of 100 (Notable)
Toronto Agincourt	Canada	Record daily snowfall	20.3 cm (8.0 in)	44 of 100 (Notable)
Lansing	United States	Record daily precipitation	34.0 mm (1.3 in)	44 of 100 (Notable)
Portage Wwtp	United States	Record daily snowfall	21.6 cm (8.5 in)	44 of 100 (Notable)
Southampton	Canada	Record daily snowfall	17.8 cm (7.0 in)	42 of 100 (Notable)
Banana Post Office	Australia	Record daily precipitation	42.2 mm (1.7 in)	38 of 100 (Notable)
Kabra Railway STN	Australia	Record daily precipitation	79.0 mm (3.1 in)	38 of 100 (Notable)
Hampton	United States	Record snow depth	15.2 cm (6.0 in)	38 of 100 (Notable)
Darlington Wwtp	United States	Record daily snowfall	22.9 cm (9.0 in)	38 of 100 (Notable)
Tempe Downs	Australia	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Sherbrooke	Canada	Record daily snowfall	20.3 cm (8.0 in)	36 of 100 (Notable)
Dixon Wwtp	United States	Record daily snowfall	20.3 cm (8.0 in)	36 of 100 (Notable)
Waterloo	United States	Record daily snowfall	9.7 cm (3.8 in)	36 of 100 (Notable)
Towanda 1 S	United States	Record daily snowfall	26.4 cm (10.4 in)	36 of 100 (Notable)
Mt Carroll	United States	Record daily snowfall	20.1 cm (7.9 in)	35 of 100 (Notable)
Mt Carroll	United States	Record snow depth	20.3 cm (8.0 in)	35 of 100 (Notable)
S. Luis	Brazil	Record daily precipitation	142.1 mm (5.6 in)	34 of 100 (Routine)
Walnut	United States	Record daily precipitation	36.3 mm (1.4 in)	34 of 100 (Routine)
Lock Haven	United States	Record daily snowfall	22.9 cm (9.0 in)	33 of 100 (Routine)
Cape Capricorn Lighthouse	Australia	Record daily precipitation	50.8 mm (2.0 in)	32 of 100 (Routine)
Lucknow	Canada	Record daily snowfall	11.4 cm (4.5 in)	32 of 100 (Routine)
Georgetown	Canada	Record daily snowfall	15.2 cm (6.0 in)	32 of 100 (Routine)
Freeport	United States	Record daily snowfall	21.3 cm (8.4 in)	32 of 100 (Routine)
Walnut	United States	Record daily snowfall	15.2 cm (6.0 in)	32 of 100 (Routine)
Howell Wwtp	United States	Record daily snowfall	10.2 cm (4.0 in)	32 of 100 (Routine)
Iowa City	United States	Record daily snowfall	16.8 cm (6.6 in)	31 of 100 (Routine)
Rockford	United States	Record daily snowfall	12.7 cm (5.0 in)	30 of 100 (Routine)
Postville	United States	Record daily snowfall	25.4 cm (10.0 in)	30 of 100 (Routine)
Ithaca Cornell UNIV	United States	Record daily snowfall	17.8 cm (7.0 in)	30 of 100 (Routine)
Pacific Salt	Australia	Record daily precipitation	61.0 mm (2.4 in)	29 of 100 (Routine)
Milnes Landing	Canada	Record high maximum temperature	21.1 C (70.0 F)	29 of 100 (Routine)
Agassiz Cda	Canada	Record high minimum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Macdonald College	Canada	Record daily snowfall	20.3 cm (8.0 in)	29 of 100 (Routine)
Delaware 3 WSW	United States	Record snow depth	20.3 cm (8.0 in)	29 of 100 (Routine)
Harrisville	United States	Record daily snowfall	12.7 cm (5.0 in)	29 of 100 (Routine)
Stanwell Post Office	Australia	Record daily precipitation	70.6 mm (2.8 in)	28 of 100 (Routine)
Delaware 3 WSW	United States	Record daily snowfall	5.1 cm (2.0 in)	28 of 100 (Routine)
Guelph Oac	Canada	Record daily snowfall	12.7 cm (5.0 in)	27 of 100 (Routine)
Oregon Wtr Wks	United States	Record daily snowfall	12.7 cm (5.0 in)	27 of 100 (Routine)
Viroqua	United States	Record daily snowfall	26.7 cm (10.5 in)	27 of 100 (Routine)
Alice Downs	Australia	Record daily precipitation	63.5 mm (2.5 in)	26 of 100 (Routine)
Elgin Downs	Australia	Record daily precipitation	43.7 mm (1.7 in)	26 of 100 (Routine)
Wondai Post Office	Australia	Record daily precipitation	36.6 mm (1.4 in)	26 of 100 (Routine)
Dixon Wwtp	United States	Record snow depth	12.7 cm (5.0 in)	26 of 100 (Routine)
Walnut	United States	Record snow depth	15.2 cm (6.0 in)	26 of 100 (Routine)
Clinton 2	United States	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)
W Branch 3SE	United States	Record daily snowfall	7.6 cm (3.0 in)	26 of 100 (Routine)
Concord	United States	Record daily snowfall	14.2 cm (5.6 in)	26 of 100 (Routine)
Aberdeen	United States	Record high maximum temperature	22.8 C (73.0 F)	26 of 100 (Routine)
Gracemere Russell St	Australia	Record daily precipitation	42.2 mm (1.7 in)	25 of 100 (Routine)
Hawthorne	United States	Record daily snowfall	30.5 cm (12.0 in)	25 of 100 (Routine)
Little Falls City Rsch	United States	Record daily snowfall	17.8 cm (7.0 in)	25 of 100 (Routine)
Green Bay	United States	Record daily snowfall	13.0 cm (5.1 in)	25 of 100 (Routine)
Dubuque River	United States	Record snow depth	30.5 cm (12.0 in)	25 of 100 (Routine)

Counts by Type and Timescale

265 records

Records set or tied on 11 March 1941 by type: Highest daily maximum 25, Lowest daily maximum 5, Highest daily minimum 9, Lowest daily minimum 5, Heaviest daily rainfall 101, Heaviest daily snowfall 94, Deepest snow cover 26.

Records on 11 March 1941 by type
Record type	Records
Highest daily maximum	25
Lowest daily maximum	5
Highest daily minimum	9
Lowest daily minimum	5
Heaviest daily rainfall	101
Heaviest daily snowfall	94
Deepest snow cover	26

Records on 11 March 1941 by timescale: all-time 0, monthly 5, daily 260.

How Much Records Were Beaten By

239 broken records

Margins by which the 239 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

11 March 1941

Top 20 records on 11 March 1941 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 March 1941	Toronto, CA	daily snowfall	20.1 cm (7.9 in)	16.3 cm (6.4 in)	74 years	65 of 100 (Major)
11 March 1941	Prairie du Chien, US	daily snowfall	22.9 cm (9.0 in)	20.4 cm (8.0 in)	43 years	57 of 100 (Notable)
11 March 1941	Cedar Rapids #1, US	daily snowfall	19.1 cm (7.5 in)	19.1 cm (7.5 in)	48 years	54 of 100 (Notable)
11 March 1941	Collingwood, CA	daily snowfall	21.6 cm (8.5 in)	11.4 cm (4.5 in)	70 years	52 of 100 (Notable)
11 March 1941	Barkestad, NO	daily rain	40.8 mm (1.6 in)	20.1 mm (0.8 in)	30 years	45 of 100 (Notable)
11 March 1941	Hillsboro, US	daily snowfall	22.9 cm (9.0 in)	15.3 cm (6.0 in)	43 years	45 of 100 (Notable)
11 March 1941	Dubuque River, US	daily snowfall	23.9 cm (9.4 in)	16.3 cm (6.4 in)	28 years	45 of 100 (Notable)
11 March 1941	Toronto Agincourt, CA	daily snowfall	20.3 cm (8.0 in)	19.0 cm (7.5 in)	6 years	44 of 100 (Notable)
11 March 1941	Lansing, US	daily rain	34.0 mm (1.3 in)	20.5 mm (0.8 in)	42 years	44 of 100 (Notable)
11 March 1941	Portage Wwtp, US	daily snowfall	21.6 cm (8.5 in)	14.0 cm (5.5 in)	43 years	44 of 100 (Notable)
11 March 1941	Southampton, CA	daily snowfall	17.8 cm (7.0 in)	8.1 cm (3.2 in)	52 years	42 of 100 (Notable)
11 March 1941	Banana Post Office, AU	daily rain	42.2 mm (1.7 in)	29.0 mm (1.1 in)	50 years	38 of 100 (Notable)
11 March 1941	Kabra Railway STN, AU	daily rain	79.0 mm (3.1 in)	65.3 mm (2.6 in)	31 years	38 of 100 (Notable)
11 March 1941	Hampton, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	46 years	38 of 100 (Notable)
11 March 1941	Darlington Wwtp, US	daily snowfall	22.9 cm (9.0 in)	15.3 cm (6.0 in)	28 years	38 of 100 (Notable)
11 March 1941	Tempe Downs, AU	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	53 years	37 of 100 (Notable)
11 March 1941	Sherbrooke, CA	daily snowfall	20.3 cm (8.0 in)	8.9 cm (3.5 in)	40 years	36 of 100 (Notable)
11 March 1941	Dixon Wwtp, US	daily snowfall	20.3 cm (8.0 in)	17.8 cm (7.0 in)	16 years	36 of 100 (Notable)
11 March 1941	Waterloo, US	daily snowfall	9.7 cm (3.8 in)	9.7 cm (3.8 in)	45 years	36 of 100 (Notable)
11 March 1941	Towanda 1 S, US	daily snowfall	26.4 cm (10.4 in)	11.2 cm (4.4 in)	44 years	36 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

1793 to 1941

Records set or tied on this calendar date in each year from 1793 to 1941. 1941 had 265 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 1941-03-11: 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).

Histogram of margins by which records were beaten on 11 March 1941
Margin	Records
0 to 50	181
50 to 100	27
100 to 150	18
150 to 200	10
200 to 250	3