Weather Records on 11 May 1943

646 weather records were set or tied worldwide on 11 May 1943. Highest significance: Peterborough, CA.

Key Facts for 11 May 1943

On 11 May 1943, 646 weather records were set or tied at long-record stations worldwide.
114 were record highs and 238 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 41 monthly and 603 daily.
Peterborough set a daily record precipitation of 52.6 mm (2.1 in) on 11 May 1943.
Across 156 earlier years (1814 to 2026) the same calendar date averaged 462 records.

Record Map

646 stations

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

Weather records on 11 May 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Peterborough	Canada	Record daily precipitation	52.6 mm (2.1 in)	65 of 100 (Major)
Fort Gibson	United States	Record daily precipitation	174.0 mm (6.9 in)	61 of 100 (Major)
New Madrid	United States	Record daily precipitation	101.1 mm (4.0 in)	59 of 100 (Notable)
Lucan	Canada	Record daily precipitation	49.5 mm (1.9 in)	55 of 100 (Notable)
Georgetown	Canada	Record daily precipitation	59.7 mm (2.4 in)	55 of 100 (Notable)
Greencastle 1 W	United States	Record daily precipitation	70.4 mm (2.8 in)	55 of 100 (Notable)
1 WSW Princeton	United States	Record daily precipitation	89.9 mm (3.5 in)	54 of 100 (Notable)
Stratford	Canada	Record daily precipitation	49.0 mm (1.9 in)	52 of 100 (Notable)
Black Rock	United States	Record daily precipitation	95.5 mm (3.8 in)	51 of 100 (Notable)
Mt Carmel	United States	Record daily precipitation	64.8 mm (2.6 in)	51 of 100 (Notable)
Mt Carmel 4 NW	United States	Record daily precipitation	64.8 mm (2.6 in)	50 of 100 (Notable)
Wauseon Wtp	United States	Record daily precipitation	45.2 mm (1.8 in)	49 of 100 (Notable)
Howe	United States	Record daily precipitation	65.3 mm (2.6 in)	48 of 100 (Notable)
Belleville	Canada	Record daily precipitation	48.5 mm (1.9 in)	47 of 100 (Notable)
Mammoth Spring	United States	Record daily precipitation	88.9 mm (3.5 in)	47 of 100 (Notable)
Angola	United States	Record daily precipitation	68.6 mm (2.7 in)	47 of 100 (Notable)
Batesville L&D 1	United States	Record daily precipitation	131.8 mm (5.2 in)	46 of 100 (Notable)
Lynnville 4 SSW	United States	Record daily precipitation	72.1 mm (2.8 in)	46 of 100 (Notable)
Burlington	United States	Record daily precipitation	29.7 mm (1.2 in)	46 of 100 (Notable)
Tiruppathur	India	Record daily precipitation	60.5 mm (2.4 in)	45 of 100 (Notable)
Du Quoin 4 SE	United States	Record daily precipitation	80.3 mm (3.2 in)	45 of 100 (Notable)
1 N McLeansboro	United States	Record daily precipitation	84.3 mm (3.3 in)	45 of 100 (Notable)
Caruthersville	United States	Record daily precipitation	83.8 mm (3.3 in)	45 of 100 (Notable)
1 ENE Fairfield	United States	Record daily precipitation	66.0 mm (2.6 in)	44 of 100 (Notable)
Paris Stp	United States	Record daily precipitation	54.6 mm (2.1 in)	44 of 100 (Notable)
Mt Clemens Ang Base	United States	Record daily precipitation	53.3 mm (2.1 in)	44 of 100 (Notable)
Tuskegee	United States	Record daily precipitation	62.2 mm (2.4 in)	43 of 100 (Notable)
Selma	United States	Record daily precipitation	68.8 mm (2.7 in)	42 of 100 (Notable)
Evansville Ft Court STN	United States	Record daily precipitation	59.7 mm (2.4 in)	42 of 100 (Notable)
Mount Forest	Canada	Record daily precipitation	70.1 mm (2.8 in)	41 of 100 (Notable)
Lennoxville	Canada	Record daily precipitation	25.9 mm (1.0 in)	41 of 100 (Notable)
Calico Rock 2 WSW	United States	Record daily precipitation	82.6 mm (3.3 in)	41 of 100 (Notable)
Ann Arbor U of Mich	United States	Record daily precipitation	65.8 mm (2.6 in)	41 of 100 (Notable)
Jath	India	Record daily precipitation	35.6 mm (1.4 in)	40 of 100 (Notable)
Wonderboom	South Africa	Record daily precipitation	57.7 mm (2.3 in)	40 of 100 (Notable)
Albion	United States	Record daily precipitation	52.6 mm (2.1 in)	40 of 100 (Notable)
Prattville	United States	Record daily precipitation	69.9 mm (2.8 in)	38 of 100 (Notable)
Shoals 8 S	United States	Record daily precipitation	59.7 mm (2.4 in)	38 of 100 (Notable)
Pontiac Wwtp	United States	Record daily precipitation	49.3 mm (1.9 in)	38 of 100 (Notable)
Myklebust I Breim	Norway	Record daily precipitation	27.7 mm (1.1 in)	37 of 100 (Notable)
Washington 1 W	United States	Record daily precipitation	71.1 mm (2.8 in)	37 of 100 (Notable)
Willow Sprg Radio Kuku	United States	Record daily precipitation	67.6 mm (2.7 in)	37 of 100 (Notable)
Big Timber	United States	Record daily snowfall	22.9 cm (9.0 in)	37 of 100 (Notable)
Canton 4 SE	United States	Record daily precipitation	39.6 mm (1.6 in)	37 of 100 (Notable)
Cicero Dantas	Brazil	Record daily precipitation	111.8 mm (4.4 in)	36 of 100 (Notable)
Plymouth Pwr Substn	United States	Record daily precipitation	58.7 mm (2.3 in)	36 of 100 (Notable)
Hillsdale	United States	Record daily precipitation	65.0 mm (2.6 in)	36 of 100 (Notable)
Wayne	United States	Record daily precipitation	46.5 mm (1.8 in)	36 of 100 (Notable)
Cape Girardeau	United States	Record daily precipitation	68.8 mm (2.7 in)	36 of 100 (Notable)
Brockville	Canada	Record daily precipitation	64.8 mm (2.6 in)	35 of 100 (Notable)
Port Dover	Canada	Record daily precipitation	32.5 mm (1.3 in)	35 of 100 (Notable)
Ozark	United States	Record daily precipitation	80.0 mm (3.1 in)	35 of 100 (Notable)
Golconda River	United States	Record daily precipitation	80.8 mm (3.2 in)	35 of 100 (Notable)
Poplar Bluff	United States	Record daily precipitation	67.1 mm (2.6 in)	35 of 100 (Notable)
Gokak	India	Record daily precipitation	36.3 mm (1.4 in)	34 of 100 (Routine)
Oolitic Purdue Ex Fm	United States	Record daily precipitation	62.7 mm (2.5 in)	34 of 100 (Routine)
Paducah	United States	Record daily precipitation	143.5 mm (5.6 in)	34 of 100 (Routine)
Princeton	United States	Record daily precipitation	61.2 mm (2.4 in)	34 of 100 (Routine)
Owosso Wwtp	United States	Record daily precipitation	36.1 mm (1.4 in)	34 of 100 (Routine)
Olney 2S	United States	Record daily precipitation	51.1 mm (2.0 in)	33 of 100 (Routine)

Counts by Type and Timescale

646 records

Records set or tied on 11 May 1943 by type: Highest daily maximum 33, Lowest daily maximum 140, Highest daily minimum 81, Lowest daily minimum 98, Heaviest daily rainfall 264, Heaviest daily snowfall 24, Deepest snow cover 6.

Records on 11 May 1943 by type
Record type	Records
Highest daily maximum	33
Lowest daily maximum	140
Highest daily minimum	81
Lowest daily minimum	98
Heaviest daily rainfall	264
Heaviest daily snowfall	24
Deepest snow cover	6

Records on 11 May 1943 by timescale: all-time 2, monthly 41, daily 603.

How Much Records Were Beaten By

537 broken records

Margins by which the 537 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.0. Ties are not counted.

Top 20 by Significance

11 May 1943

Top 20 records on 11 May 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 1943	Peterborough, CA	daily rain	52.6 mm (2.1 in)	35.6 mm (1.4 in)	60 years	65 of 100 (Major)
11 May 1943	Fort Gibson, US	all-time rain	174.0 mm (6.9 in)	53.9 mm (2.1 in)	9 years	61 of 100 (Major)
11 May 1943	New Madrid, US	daily rain	101.1 mm (4.0 in)	64.5 mm (2.5 in)	47 years	59 of 100 (Notable)
11 May 1943	Lucan, CA	daily rain	49.5 mm (1.9 in)	34.3 mm (1.4 in)	26 years	55 of 100 (Notable)
11 May 1943	Georgetown, CA	monthly rain	59.7 mm (2.4 in)	17.3 mm (0.7 in)	53 years	55 of 100 (Notable)
11 May 1943	Greencastle 1 W, US	daily rain	70.4 mm (2.8 in)	53.4 mm (2.1 in)	37 years	55 of 100 (Notable)
11 May 1943	1 WSW Princeton, US	daily rain	89.9 mm (3.5 in)	69.1 mm (2.7 in)	30 years	54 of 100 (Notable)
11 May 1943	Stratford, CA	daily rain	49.0 mm (1.9 in)	27.4 mm (1.1 in)	43 years	52 of 100 (Notable)
11 May 1943	Black Rock, US	daily rain	95.5 mm (3.8 in)	70.1 mm (2.8 in)	21 years	51 of 100 (Notable)
11 May 1943	Mt Carmel, US	daily rain	64.8 mm (2.6 in)	38.1 mm (1.5 in)	43 years	51 of 100 (Notable)
11 May 1943	Mt Carmel 4 NW, US	daily rain	64.8 mm (2.6 in)	49.6 mm (2.0 in)	21 years	50 of 100 (Notable)
11 May 1943	Wauseon Wtp, US	daily rain	45.2 mm (1.8 in)	26.9 mm (1.1 in)	37 years	49 of 100 (Notable)
11 May 1943	Howe, US	daily rain	65.3 mm (2.6 in)	40.7 mm (1.6 in)	28 years	48 of 100 (Notable)
11 May 1943	Belleville, CA	daily rain	48.5 mm (1.9 in)	28.9 mm (1.1 in)	13 years	47 of 100 (Notable)
11 May 1943	Mammoth Spring, US	daily rain	88.9 mm (3.5 in)	55.4 mm (2.2 in)	24 years	47 of 100 (Notable)
11 May 1943	Angola, US	monthly rain	68.6 mm (2.7 in)	17.8 mm (0.7 in)	40 years	47 of 100 (Notable)
11 May 1943	Batesville L&D 1, US	daily rain	131.8 mm (5.2 in)	95.0 mm (3.7 in)	8 years	46 of 100 (Notable)
11 May 1943	Lynnville 4 SSW, US	daily rain	72.1 mm (2.8 in)	41.6 mm (1.6 in)	45 years	46 of 100 (Notable)
11 May 1943	Burlington, US	daily rain	29.7 mm (1.2 in)	18.3 mm (0.7 in)	50 years	46 of 100 (Notable)
11 May 1943	Tiruppathur, IN	daily rain	60.5 mm (2.4 in)	57.7 mm (2.3 in)	24 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

1814 to 1943

Records set or tied on this calendar date in each year from 1814 to 1943. 1943 had 646 records.

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

Records on 05-11 in each year
Year	Records
1814	3
1832	1
1836	3
1837	1
1838	1
1848	2
1856	1
1860	2
1865	1
1867	1
1869	1
1872	1
1874	2
1879	2
1880	1
1881	5
1883	3
1884	2
1885	1
1886	2
1887	1
1888	1
1889	2
1892	1
1893	3
1894	2
1895	4
1896	3
1897	6
1898	5
1900	7
1901	9
1902	6
1903	7
1904	6
1905	12
1906	21
1907	44
1908	9
1909	12
1910	16
1911	99
1912	21
1913	20
1914	20
1915	16
1916	22
1917	40
1918	54
1919	56
1920	181
1921	58
1922	61
1923	111
1924	239
1925	410
1926	472
1927	318
1928	252
1929	126
1930	380
1931	254
1932	170
1933	429
1934	332
1935	276
1936	363
1937	170
1938	141
1939	213
1940	340
1941	411
1942	389
1943	646
1944	408
1945	483
1946	747
1947	480
1948	407
1949	451
1950	285
1951	395
1952	629
1953	686
1954	492
1955	235
1956	942
1957	439
1958	499
1959	575
1960	809
1961	663
1962	670
1963	984
1964	299
1965	356
1966	992
1967	974
1968	909
1969	349
1970	764
1971	565
1972	673
1973	429
1974	795
1975	383
1976	509
1977	836
1978	1,070
1979	1,239
1980	693
1981	1,298
1982	624
1983	930
1984	666
1985	835
1986	684
1987	1,247
1988	485
1989	952
1990	935
1991	990
1992	728
1993	1,088
1994	633
1995	1,244
1996	1,088
1997	1,033
1998	1,315
1999	1,052
2000	1,286
2001	848
2002	845
2003	1,321
2004	834
2005	944
2006	822
2007	833
2008	1,015
2009	605
2010	1,292
2011	1,414
2012	1,181
2013	615
2014	662
2015	1,038
2016	497
2017	546
2018	988
2019	915
2020	1,068
2021	590
2022	1,470
2023	390
2024	579
2025	1,104
2026	797

Download the Data

Data for records on 1943-05-11: 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 20	452
20 to 40	54
40 to 60	21
60 to 80	7
80 to 100	2
100 to 120	1