Weather Records on 21 October 1943

421 weather records were set or tied worldwide on 21 October 1943. Highest significance: Hillsboro, US.

Key Facts for 21 October 1943

On 21 October 1943, 421 weather records were set or tied at long-record stations worldwide.
117 were record highs and 47 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 416 daily.
Hillsboro set a daily record precipitation of 63.5 mm (2.5 in) on 21 October 1943.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 420 records.

Record Map

421 stations

421 station records on 21 October 1943 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 October 1943: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hillsboro	United States	Record daily precipitation	63.5 mm (2.5 in)	54 of 100 (Notable)
La Harpe	United States	Record daily precipitation	75.7 mm (3.0 in)	53 of 100 (Notable)
Aledo	United States	Record daily precipitation	52.6 mm (2.1 in)	48 of 100 (Notable)
Pilgrims Rest (Pol)	South Africa	Record daily precipitation	46.2 mm (1.8 in)	47 of 100 (Notable)
Colgate Powerhouse	United States	Record daily precipitation	39.4 mm (1.6 in)	45 of 100 (Notable)
Prairie du Sac 2 N	United States	Record daily precipitation	48.5 mm (1.9 in)	45 of 100 (Notable)
Panki	India	Record daily precipitation	57.9 mm (2.3 in)	44 of 100 (Notable)
Woodhouse	Australia	Record daily precipitation	57.2 mm (2.3 in)	43 of 100 (Notable)
Leipzig-Holzhausen	Germany	Record high minimum temperature	14.0 C (57.2 F)	40 of 100 (Notable)
Hatfield	United States	Record daily precipitation	39.6 mm (1.6 in)	39 of 100 (Notable)
Big St Germain Dam	United States	Record daily precipitation	36.1 mm (1.4 in)	37 of 100 (Notable)
Dubuque River	United States	Record daily precipitation	39.1 mm (1.5 in)	37 of 100 (Notable)
Dudleys	United States	Record daily precipitation	32.3 mm (1.3 in)	36 of 100 (Notable)
Putbus	Germany	Record high maximum temperature	17.6 C (63.7 F)	34 of 100 (Routine)
Fayette	United States	Record daily precipitation	41.1 mm (1.6 in)	34 of 100 (Routine)
Hannibal 1 N	United States	Record daily precipitation	45.2 mm (1.8 in)	34 of 100 (Routine)
Hancock Exp Farm	United States	Record daily precipitation	50.8 mm (2.0 in)	32 of 100 (Routine)
South Pass City	United States	Record daily snowfall	12.7 cm (5.0 in)	32 of 100 (Routine)
Leipzig-Holzhausen	Germany	Record high maximum temperature	24.0 C (75.2 F)	31 of 100 (Routine)
Weissenburg	Germany	Record high maximum temperature	23.0 C (73.4 F)	31 of 100 (Routine)
Hariharganj	India	Record daily precipitation	38.1 mm (1.5 in)	31 of 100 (Routine)
Hungund	India	Record daily precipitation	55.6 mm (2.2 in)	31 of 100 (Routine)
Lancaster 4 WSW	United States	Record daily precipitation	61.0 mm (2.4 in)	31 of 100 (Routine)
Battle Mtn	United States	Record daily precipitation	27.9 mm (1.1 in)	30 of 100 (Routine)
Monmouth	United States	Record daily precipitation	45.5 mm (1.8 in)	29 of 100 (Routine)
Le Claire	United States	Record daily precipitation	30.7 mm (1.2 in)	29 of 100 (Routine)
Gorlitz	Germany	Record high maximum temperature	21.4 C (70.5 F)	28 of 100 (Routine)
Council	United States	Record daily precipitation	29.2 mm (1.1 in)	28 of 100 (Routine)
Hailey 3 NNW	United States	Record daily snowfall	10.2 cm (4.0 in)	28 of 100 (Routine)
Sonora	United States	Record daily precipitation	32.5 mm (1.3 in)	27 of 100 (Routine)
Clinton #1	United States	Record daily precipitation	28.4 mm (1.1 in)	27 of 100 (Routine)
Maquoketa	United States	Record daily precipitation	88.9 mm (3.5 in)	27 of 100 (Routine)
Tirunelveli	India	Record daily precipitation	83.3 mm (3.3 in)	26 of 100 (Routine)
Idaho City	United States	Record low maximum temperature	3.9 C (39.0 F)	26 of 100 (Routine)
Aiken 5SE	United States	Record high maximum temperature	33.9 C (93.0 F)	26 of 100 (Routine)
Jena Sternwarte	Germany	Record high maximum temperature	23.9 C (75.0 F)	25 of 100 (Routine)
Chakaibanda	India	Record daily precipitation	72.1 mm (2.8 in)	25 of 100 (Routine)
Norris Madison Pwr House	United States	Record snow depth	12.7 cm (5.0 in)	25 of 100 (Routine)
Nashlyn	Canada	Record daily snowfall	6.4 cm (2.5 in)	24 of 100 (Routine)
Fogo	Canada	Record daily precipitation	30.0 mm (1.2 in)	24 of 100 (Routine)
Honnali	India	Record daily precipitation	46.2 mm (1.8 in)	24 of 100 (Routine)
Augsburg (Sankt Stephan)	Germany	Record high maximum temperature	22.2 C (72.0 F)	23 of 100 (Routine)
Dharwar	India	Record daily precipitation	35.6 mm (1.4 in)	23 of 100 (Routine)
Eastman 1 W	United States	Record high maximum temperature	33.9 C (93.0 F)	23 of 100 (Routine)
Wilmington Wb City	United States	Record high maximum temperature	28.9 C (84.0 F)	23 of 100 (Routine)
Mauston 1 SE	United States	Record daily precipitation	59.9 mm (2.4 in)	23 of 100 (Routine)
Burketown Post Office	Australia	Record high maximum temperature	40.6 C (105.1 F)	22 of 100 (Routine)
Chemnitz	Germany	Record high minimum temperature	11.0 C (51.8 F)	22 of 100 (Routine)
Bishrampur	India	Record daily precipitation	40.6 mm (1.6 in)	22 of 100 (Routine)
Freeport	United States	Record daily precipitation	33.5 mm (1.3 in)	22 of 100 (Routine)
Stevens Pt	United States	Record daily precipitation	44.7 mm (1.8 in)	22 of 100 (Routine)
Garhwa	India	Record daily precipitation	33.0 mm (1.3 in)	21 of 100 (Routine)
Bikram	India	Record daily precipitation	35.6 mm (1.4 in)	21 of 100 (Routine)
Colfax	United States	Record daily precipitation	26.2 mm (1.0 in)	21 of 100 (Routine)
Clinton 2	United States	Record daily precipitation	30.0 mm (1.2 in)	21 of 100 (Routine)
Waianae 798	United States	Record high maximum temperature	34.4 C (93.9 F)	21 of 100 (Routine)
Driggs	United States	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Svenska Hogarna	Sweden	Record daily precipitation	19.2 mm (0.8 in)	20 of 100 (Routine)
Mareeba Post Office	Australia	Record daily precipitation	24.6 mm (1.0 in)	20 of 100 (Routine)
Mottinger	United States	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)

Counts by Type and Timescale

421 records

Records set or tied on 21 October 1943 by type: Highest daily maximum 98, Lowest daily maximum 29, Highest daily minimum 19, Lowest daily minimum 18, Heaviest daily rainfall 241, Heaviest daily snowfall 15, Deepest snow cover 1.

Records on 21 October 1943 by type
Record type	Records
Highest daily maximum	98
Lowest daily maximum	29
Highest daily minimum	19
Lowest daily minimum	18
Heaviest daily rainfall	241
Heaviest daily snowfall	15
Deepest snow cover	1

Records on 21 October 1943 by timescale: all-time 0, monthly 5, daily 416.

How Much Records Were Beaten By

366 broken records

Margins by which the 366 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

21 October 1943

Top 20 records on 21 October 1943 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1943	Hillsboro, US	daily rain	63.5 mm (2.5 in)	54.6 mm (2.1 in)	32 years	54 of 100 (Notable)
21 October 1943	La Harpe, US	daily rain	75.7 mm (3.0 in)	66.6 mm (2.6 in)	32 years	53 of 100 (Notable)
21 October 1943	Aledo, US	daily rain	52.6 mm (2.1 in)	41.2 mm (1.6 in)	14 years	48 of 100 (Notable)
21 October 1943	Pilgrims Rest (Pol), ZA	daily rain	46.2 mm (1.8 in)	39.8 mm (1.6 in)	14 years	47 of 100 (Notable)
21 October 1943	Colgate Powerhouse, US	daily rain	39.4 mm (1.6 in)	36.6 mm (1.4 in)	33 years	45 of 100 (Notable)
21 October 1943	Prairie du Sac 2 N, US	daily rain	48.5 mm (1.9 in)	37.8 mm (1.5 in)	9 years	45 of 100 (Notable)
21 October 1943	Panki, IN	daily rain	57.9 mm (2.3 in)	49.5 mm (1.9 in)	9 years	44 of 100 (Notable)
21 October 1943	Woodhouse, AU	daily rain	57.2 mm (2.3 in)	57.2 mm (2.3 in)	46 years	43 of 100 (Notable)
21 October 1943	Leipzig-Holzhausen, DE	daily high min	14.0 C (57.2 F)	3.5 C (6.3 F)	78 years	40 of 100 (Notable)
21 October 1943	Hatfield, US	daily rain	39.6 mm (1.6 in)	26.9 mm (1.1 in)	32 years	39 of 100 (Notable)
21 October 1943	Big St Germain Dam, US	daily rain	36.1 mm (1.4 in)	25.9 mm (1.0 in)	14 years	37 of 100 (Notable)
21 October 1943	Dubuque River, US	daily rain	39.1 mm (1.5 in)	20.6 mm (0.8 in)	30 years	37 of 100 (Notable)
21 October 1943	Dudleys, US	daily rain	32.3 mm (1.3 in)	32.0 mm (1.3 in)	28 years	36 of 100 (Notable)
21 October 1943	Putbus, DE	daily high max	17.6 C (63.7 F)	3.4 C (6.1 F)	51 years	34 of 100 (Routine)
21 October 1943	Fayette, US	daily rain	41.1 mm (1.6 in)	16.0 mm (0.6 in)	48 years	34 of 100 (Routine)
21 October 1943	Hannibal 1 N, US	daily rain	45.2 mm (1.8 in)	28.7 mm (1.1 in)	1 year	34 of 100 (Routine)
21 October 1943	Hancock Exp Farm, US	daily rain	50.8 mm (2.0 in)	25.9 mm (1.0 in)	6 years	32 of 100 (Routine)
21 October 1943	South Pass City, US	daily snowfall	12.7 cm (5.0 in)	10.2 cm (4.0 in)	22 years	32 of 100 (Routine)
21 October 1943	Leipzig-Holzhausen, DE	daily high max	24.0 C (75.2 F)	3.6 C (6.5 F)	51 years	31 of 100 (Routine)
21 October 1943	Weissenburg, DE	daily high max	23.0 C (73.4 F)	4.9 C (8.8 F)	51 years	31 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

1795 to 1943

Records set or tied on this calendar date in each year from 1795 to 1943. 1943 had 421 records.

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

Records on 10-21 in each year
Year	Records
1795	1
1802	2
1805	1
1808	1
1810	1
1834	1
1835	1
1840	1
1845	1
1847	1
1850	1
1851	2
1854	1
1859	1
1863	1
1864	1
1866	3
1867	1
1868	3
1869	2
1871	1
1872	1
1873	1
1874	1
1876	4
1877	2
1878	1
1880	3
1881	1
1883	1
1886	1
1888	2
1889	2
1890	3
1891	6
1892	6
1893	1
1894	1
1895	2
1896	5
1898	6
1899	3
1900	2
1901	9
1902	2
1903	3
1904	30
1905	15
1906	11
1907	35
1908	35
1909	19
1910	21
1911	10
1912	18
1913	59
1914	35
1915	43
1916	70
1917	208
1918	18
1919	102
1920	149
1921	58
1922	78
1923	81
1924	389
1925	150
1926	77
1927	187
1928	78
1929	200
1930	492
1931	217
1932	165
1933	733
1934	407
1935	707
1936	407
1937	132
1938	121
1939	491
1940	537
1941	644
1942	258
1943	421
1944	367
1945	538
1946	297
1947	977
1948	266
1949	1,015
1950	438
1951	382
1952	848
1953	1,579
1954	279
1955	481
1956	276
1957	511
1958	322
1959	410
1960	408
1961	553
1962	359
1963	725
1964	457
1965	465
1966	425
1967	472
1968	174
1969	881
1970	548
1971	498
1972	813
1973	464
1974	866
1975	509
1976	1,467
1977	451
1978	616
1979	1,958
1980	378
1981	667
1982	870
1983	786
1984	1,872
1985	776
1986	814
1987	852
1988	696
1989	1,668
1990	807
1991	877
1992	1,095
1993	845
1994	670
1995	1,120
1996	1,581
1997	915
1998	711
1999	688
2000	771
2001	610
2002	1,241
2003	2,066
2004	1,674
2005	949
2006	1,057
2007	916
2008	610
2009	713
2010	710
2011	662
2012	703
2013	440
2014	716
2015	493
2016	734
2017	750
2018	440
2019	757
2020	1,135
2021	574
2022	629
2023	890
2024	1,138
2025	364

Download the Data

Data for records on 1943-10-21: 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 2026-10-16 (16 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	327
20 to 40	28
40 to 60	6
60 to 80	2
80 to 100	1
100 to 120	2