Weather Records on 11 May 1946

747 weather records were set or tied worldwide on 11 May 1946. Highest significance: Westcliffe, US.

Key Facts for 11 May 1946

On 11 May 1946, 747 weather records were set or tied at long-record stations worldwide.
22 were record highs and 621 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 59 monthly and 688 daily.
Westcliffe set a daily record snowfall of 25.4 cm (10.0 in) on 11 May 1946.
Across 156 earlier years (1814 to 2026) the same calendar date averaged 462 records.

Record Map

747 stations

747 station records on 11 May 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 May 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Westcliffe	United States	Record daily snowfall	25.4 cm (10.0 in)	59 of 100 (Notable)
Delta	United States	Record daily precipitation	28.2 mm (1.1 in)	41 of 100 (Notable)
Natural Brg	United States	Record daily precipitation	26.9 mm (1.1 in)	39 of 100 (Notable)
Cedaredge	United States	Record daily precipitation	32.3 mm (1.3 in)	34 of 100 (Routine)
Buena Vista 2S	United States	Record daily snowfall	25.4 cm (10.0 in)	33 of 100 (Routine)
Sibley	United States	Record low minimum temperature	-7.2 C (19.0 F)	32 of 100 (Routine)
Qu'appelle	Canada	Record low minimum temperature	-11.7 C (10.9 F)	31 of 100 (Routine)
Bucyrus	United States	Record daily precipitation	36.1 mm (1.4 in)	31 of 100 (Routine)
Mt Ida 3 SE	United States	Record daily precipitation	47.0 mm (1.9 in)	30 of 100 (Routine)
Rico	United States	Record daily snowfall	12.7 cm (5.0 in)	30 of 100 (Routine)
Portal	United States	Record low minimum temperature	-9.4 C (15.1 F)	30 of 100 (Routine)
De Smet	United States	Record low minimum temperature	-8.3 C (17.1 F)	30 of 100 (Routine)
Flandreau	United States	Record low minimum temperature	-8.9 C (16.0 F)	30 of 100 (Routine)
Bird Island	United States	Record low minimum temperature	-5.6 C (21.9 F)	29 of 100 (Routine)
Boulder	United States	Record low minimum temperature	-6.1 C (21.0 F)	28 of 100 (Routine)
Beardsley	United States	Record low minimum temperature	-7.2 C (19.0 F)	28 of 100 (Routine)
Howard	United States	Record low minimum temperature	-6.7 C (19.9 F)	28 of 100 (Routine)
Menno	United States	Record low minimum temperature	-7.2 C (19.0 F)	28 of 100 (Routine)
Scipio	United States	Record daily precipitation	27.7 mm (1.1 in)	28 of 100 (Routine)
Cobar Post Office	Australia	Record high maximum temperature	28.9 C (84.0 F)	27 of 100 (Routine)
Fairmont	United States	Record low minimum temperature	-5.6 C (21.9 F)	27 of 100 (Routine)
New Ulm 2 SE	United States	Record low minimum temperature	-7.2 C (19.0 F)	27 of 100 (Routine)
Hiram	United States	Record daily precipitation	33.3 mm (1.3 in)	27 of 100 (Routine)
Alexandria	United States	Record low minimum temperature	-7.2 C (19.0 F)	27 of 100 (Routine)
Marion	United States	Record low minimum temperature	-7.2 C (19.0 F)	27 of 100 (Routine)
Chugwater	United States	Record low minimum temperature	-11.1 C (12.0 F)	27 of 100 (Routine)
Grand Junction Walker Fld	United States	Record low maximum temperature	5.6 C (42.1 F)	27 of 100 (Routine)
Greensburg	United States	Record low minimum temperature	-2.8 C (27.0 F)	26 of 100 (Routine)
Long Prairie	United States	Record low maximum temperature	4.4 C (39.9 F)	26 of 100 (Routine)
Wentworth 2.5 WNW	United States	Record low minimum temperature	-7.2 C (19.0 F)	26 of 100 (Routine)
Hana 354	United States	Record high minimum temperature	24.4 C (75.9 F)	26 of 100 (Routine)
Minnedosa	Canada	Record low minimum temperature	-7.8 C (18.0 F)	25 of 100 (Routine)
Emerson	Canada	Record low maximum temperature	4.4 C (39.9 F)	25 of 100 (Routine)
Mine Centre	Canada	Record low minimum temperature	-12.2 C (10.0 F)	25 of 100 (Routine)
Kiev	Ukraine	Record low minimum temperature	0.6 C (33.1 F)	25 of 100 (Routine)
Delta	United States	Record low maximum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Brainerd	United States	Record low maximum temperature	3.3 C (37.9 F)	25 of 100 (Routine)
Fergus Falls	United States	Record low minimum temperature	-5.6 C (21.9 F)	25 of 100 (Routine)
Geneva	United States	Record low minimum temperature	-2.8 C (27.0 F)	25 of 100 (Routine)
Hartington	United States	Record low minimum temperature	-3.9 C (25.0 F)	25 of 100 (Routine)
O'Neill	United States	Record low minimum temperature	-5.0 C (23.0 F)	25 of 100 (Routine)
Thompson Welcome Ctr	United States	Record low maximum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Laramie	United States	Record low minimum temperature	-8.9 C (16.0 F)	25 of 100 (Routine)
Grenfell	Canada	Record low maximum temperature	2.8 C (37.0 F)	24 of 100 (Routine)
Kharagpur	India	Record daily precipitation	33.0 mm (1.3 in)	24 of 100 (Routine)
Coldwater	United States	Record low minimum temperature	-1.1 C (30.0 F)	24 of 100 (Routine)
McPherson	United States	Record low minimum temperature	-1.1 C (30.0 F)	24 of 100 (Routine)
Olathe 3E	United States	Record low minimum temperature	1.7 C (35.1 F)	24 of 100 (Routine)
Ulysses 3NE	United States	Record low minimum temperature	-3.3 C (26.1 F)	24 of 100 (Routine)
Detroit Lakes 1 NNE	United States	Record low minimum temperature	-7.2 C (19.0 F)	24 of 100 (Routine)
Milaca	United States	Record low minimum temperature	-6.7 C (19.9 F)	24 of 100 (Routine)
Montevideo 1SW	United States	Record low minimum temperature	-4.4 C (24.1 F)	24 of 100 (Routine)
New London	United States	Record low minimum temperature	-6.1 C (21.0 F)	24 of 100 (Routine)
Lexington 3E	United States	Record low minimum temperature	2.2 C (36.0 F)	24 of 100 (Routine)
Crete 4ESE	United States	Record low minimum temperature	-1.7 C (28.9 F)	24 of 100 (Routine)
Hebron	United States	Record low minimum temperature	-2.8 C (27.0 F)	24 of 100 (Routine)
Concordia ASOS	United States	Record low minimum temperature	0.0 C (32.0 F)	24 of 100 (Routine)
Boulder	United States	Record daily snowfall	17.8 cm (7.0 in)	23 of 100 (Routine)
Canon City	United States	Record low minimum temperature	-2.2 C (28.0 F)	23 of 100 (Routine)
Sheldon	United States	Record low minimum temperature	-5.6 C (21.9 F)	23 of 100 (Routine)

Counts by Type and Timescale

747 records

Records set or tied on 11 May 1946 by type: Highest daily maximum 8, Lowest daily maximum 190, Highest daily minimum 14, Lowest daily minimum 431, Heaviest daily rainfall 89, Heaviest daily snowfall 15.

Records on 11 May 1946 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	190
Highest daily minimum	14
Lowest daily minimum	431
Heaviest daily rainfall	89
Heaviest daily snowfall	15
Deepest snow cover	0

Records on 11 May 1946 by timescale: all-time 0, monthly 59, daily 688.

How Much Records Were Beaten By

607 broken records

Margins by which the 607 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

11 May 1946

Top 20 records on 11 May 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 1946	Westcliffe, US	daily snowfall	25.4 cm (10.0 in)	25.4 cm (10.0 in)	49 years	59 of 100 (Notable)
11 May 1946	Delta, US	daily rain	28.2 mm (1.1 in)	13.0 mm (0.5 in)	44 years	41 of 100 (Notable)
11 May 1946	Natural Brg, US	daily rain	26.9 mm (1.1 in)	19.3 mm (0.8 in)	17 years	39 of 100 (Notable)
11 May 1946	Cedaredge, US	monthly rain	32.3 mm (1.3 in)	6.9 mm (0.27 in)	25 years	34 of 100 (Routine)
11 May 1946	Buena Vista 2S, US	monthly snowfall	25.4 cm (10.0 in)	5.1 cm (2.0 in)	32 years	33 of 100 (Routine)
11 May 1946	Sibley, US	monthly low min	-7.2 C (19.0 F)	1.1 C (2.0 F)	53 years	32 of 100 (Routine)
11 May 1946	Qu'appelle, CA	daily low min	-11.7 C (10.9 F)	3.9 C (7.0 F)	57 years	31 of 100 (Routine)
11 May 1946	Bucyrus, US	daily rain	36.1 mm (1.4 in)	10.7 mm (0.4 in)	52 years	31 of 100 (Routine)
11 May 1946	Mt Ida 3 SE, US	daily rain	47.0 mm (1.9 in)	31.8 mm (1.3 in)	27 years	30 of 100 (Routine)
11 May 1946	Rico, US	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	24 years	30 of 100 (Routine)
11 May 1946	Portal, US	daily low min	-9.4 C (15.1 F)	5.0 C (9.0 F)	50 years	30 of 100 (Routine)
11 May 1946	De Smet, US	monthly low min	-8.3 C (17.1 F)	0.5 C (0.9 F)	50 years	30 of 100 (Routine)
11 May 1946	Flandreau, US	monthly low min	-8.9 C (16.0 F)	2.2 C (4.0 F)	39 years	30 of 100 (Routine)
11 May 1946	Bird Island, US	daily low min	-5.6 C (21.9 F)	5.0 C (9.0 F)	50 years	29 of 100 (Routine)
11 May 1946	Boulder, US	daily low min	-6.1 C (21.0 F)	5.5 C (9.9 F)	35 years	28 of 100 (Routine)
11 May 1946	Beardsley, US	daily low min	-7.2 C (19.0 F)	4.4 C (7.9 F)	50 years	28 of 100 (Routine)
11 May 1946	Howard, US	daily low min	-6.7 C (19.9 F)	4.5 C (8.1 F)	50 years	28 of 100 (Routine)
11 May 1946	Menno, US	monthly low min	-7.2 C (19.0 F)	1.1 C (2.0 F)	37 years	28 of 100 (Routine)
11 May 1946	Scipio, US	daily rain	27.7 mm (1.1 in)	12.5 mm (0.5 in)	12 years	28 of 100 (Routine)
11 May 1946	Cobar Post Office, AU	daily high max	28.9 C (84.0 F)	1.1 C (2.0 F)	64 years	27 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

1814 to 1946

Records set or tied on this calendar date in each year from 1814 to 1946. 1946 had 747 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 1946-05-11: 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 50	603
50 to 100	2
100 to 150	1
150 to 200	0
200 to 250	0
250 to 300	1