Weather Records on 21 October 1951

382 weather records were set or tied worldwide on 21 October 1951. Highest significance: Denison, US.

Key Facts for 21 October 1951

On 21 October 1951, 382 weather records were set or tied at long-record stations worldwide.
64 were record highs and 85 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 379 daily.
Denison set a daily record precipitation of 75.4 mm (3.0 in) on 21 October 1951.
Across 167 earlier years (1795 to 2025) the same calendar date averaged 420 records.

Record Map

382 stations

382 station records on 21 October 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 October 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Denison	United States	Record daily precipitation	75.4 mm (3.0 in)	60 of 100 (Major)
Fremont	United States	Record daily precipitation	47.0 mm (1.9 in)	44 of 100 (Notable)
Blair	United States	Record daily precipitation	46.7 mm (1.8 in)	42 of 100 (Notable)
Watertown Wwtp	United States	Record daily precipitation	50.3 mm (2.0 in)	42 of 100 (Notable)
Hilliard	United States	Record daily precipitation	161.5 mm (6.4 in)	37 of 100 (Notable)
Carroll	United States	Record daily precipitation	65.0 mm (2.6 in)	37 of 100 (Notable)
La Crosse Wb City	United States	Record daily precipitation	31.8 mm (1.3 in)	37 of 100 (Notable)
Collbran	United States	Record daily snowfall	10.2 cm (4.0 in)	36 of 100 (Notable)
Tyndall	United States	Record daily snowfall	7.6 cm (3.0 in)	36 of 100 (Notable)
Kimball 2NE	United States	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Chikodi	India	Record daily precipitation	67.3 mm (2.6 in)	33 of 100 (Routine)
Watertown Rgnl AP	United States	Record daily snowfall	5.8 cm (2.3 in)	33 of 100 (Routine)
Strehla	South Africa	Record daily precipitation	26.7 mm (1.1 in)	32 of 100 (Routine)
Sivaganga	India	Record daily precipitation	58.9 mm (2.3 in)	31 of 100 (Routine)
Scottsboro	United States	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Decorah	United States	Record daily precipitation	28.7 mm (1.1 in)	31 of 100 (Routine)
Harlan	United States	Record daily precipitation	38.1 mm (1.5 in)	30 of 100 (Routine)
Gardiner	United States	Record low minimum temperature	-9.4 C (15.1 F)	30 of 100 (Routine)
Malavalli	India	Record daily precipitation	53.3 mm (2.1 in)	29 of 100 (Routine)
Grinnell 3 SW	United States	Record daily precipitation	30.2 mm (1.2 in)	29 of 100 (Routine)
Imperial	United States	Record daily snowfall	7.6 cm (3.0 in)	29 of 100 (Routine)
Doornbult	South Africa	Record daily precipitation	37.8 mm (1.5 in)	28 of 100 (Routine)
Hayden	United States	Record daily snowfall	12.7 cm (5.0 in)	28 of 100 (Routine)
Logan 1 WNW	United States	Record daily precipitation	26.7 mm (1.1 in)	28 of 100 (Routine)
Madrid	United States	Record daily snowfall	7.6 cm (3.0 in)	28 of 100 (Routine)
Tekamah	United States	Record daily precipitation	35.3 mm (1.4 in)	28 of 100 (Routine)
Hirekerur	India	Record daily precipitation	57.9 mm (2.3 in)	27 of 100 (Routine)
Louwsburg (Mag)	South Africa	Record daily precipitation	40.9 mm (1.6 in)	27 of 100 (Routine)
Fernandina Beach	United States	Record daily precipitation	110.2 mm (4.3 in)	27 of 100 (Routine)
Caledonia	United States	Record daily precipitation	31.0 mm (1.2 in)	27 of 100 (Routine)
Paxton	United States	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Burnett 3 S	United States	Record daily precipitation	27.9 mm (1.1 in)	27 of 100 (Routine)
New Hampton	United States	Record daily precipitation	28.4 mm (1.1 in)	26 of 100 (Routine)
Lawrence	United States	Record high minimum temperature	16.7 C (62.1 F)	26 of 100 (Routine)
Yerevan	Armenia	Record low minimum temperature	0.2 C (32.4 F)	25 of 100 (Routine)
Fernie	Canada	Record daily snowfall	5.1 cm (2.0 in)	25 of 100 (Routine)
Madison	United States	Record daily precipitation	39.9 mm (1.6 in)	25 of 100 (Routine)
Cedar Rapids #1	United States	Record daily precipitation	38.4 mm (1.5 in)	25 of 100 (Routine)
Cedar Rapids 2	United States	Record daily precipitation	36.6 mm (1.4 in)	25 of 100 (Routine)
Snake Creek Powerhouse	United States	Record daily snowfall	5.1 cm (2.0 in)	25 of 100 (Routine)
Sedro-Woolley	United States	Record daily precipitation	27.2 mm (1.1 in)	25 of 100 (Routine)
David City 4E	United States	Record daily precipitation	33.0 mm (1.3 in)	24 of 100 (Routine)
Russell	Canada	Record low minimum temperature	-15.6 C (3.9 F)	23 of 100 (Routine)
Hosanagar	India	Record daily precipitation	29.5 mm (1.2 in)	23 of 100 (Routine)
Klerkskraal (Pol)	South Africa	Record daily precipitation	30.5 mm (1.2 in)	23 of 100 (Routine)
Delmas (Pol)	South Africa	Record daily precipitation	27.4 mm (1.1 in)	23 of 100 (Routine)
Lowestoft	United Kingdom	Record low maximum temperature	7.8 C (46.0 F)	23 of 100 (Routine)
Astoria	United States	Record daily precipitation	25.9 mm (1.0 in)	23 of 100 (Routine)
Hillsdown	Canada	Record low minimum temperature	-16.7 C (1.9 F)	22 of 100 (Routine)
Coldwater	Canada	Record high minimum temperature	15.6 C (60.1 F)	22 of 100 (Routine)
Chiplun	India	Record daily precipitation	26.2 mm (1.0 in)	22 of 100 (Routine)
Lake City 2 E	United States	Record high minimum temperature	20.6 C (69.1 F)	22 of 100 (Routine)
Huron Rgnl AP	United States	Record daily snowfall	6.4 cm (2.5 in)	22 of 100 (Routine)
Mahalapye	Botswana	Record daily precipitation	45.2 mm (1.8 in)	21 of 100 (Routine)
Parys (Mun)	South Africa	Record daily precipitation	25.9 mm (1.0 in)	21 of 100 (Routine)
Ogies (Pol)	South Africa	Record daily precipitation	37.8 mm (1.5 in)	21 of 100 (Routine)
Karesuando	Sweden	Record high minimum temperature	2.5 C (36.5 F)	21 of 100 (Routine)
Globe Rs	United States	Record high minimum temperature	16.1 C (61.0 F)	21 of 100 (Routine)
Bluewater 3 WSW	United States	Record high minimum temperature	8.9 C (48.0 F)	21 of 100 (Routine)
New England	United States	Record low maximum temperature	0.0 C (32.0 F)	21 of 100 (Routine)

Counts by Type and Timescale

382 records

Records set or tied on 21 October 1951 by type: Highest daily maximum 11, Lowest daily maximum 53, Highest daily minimum 53, Lowest daily minimum 32, Heaviest daily rainfall 196, Heaviest daily snowfall 33, Deepest snow cover 4.

Records on 21 October 1951 by type
Record type	Records
Highest daily maximum	11
Lowest daily maximum	53
Highest daily minimum	53
Lowest daily minimum	32
Heaviest daily rainfall	196
Heaviest daily snowfall	33
Deepest snow cover	4

Records on 21 October 1951 by timescale: all-time 0, monthly 3, daily 379.

How Much Records Were Beaten By

321 broken records

Margins by which the 321 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 99.0. Ties are not counted.

Top 20 by Significance

21 October 1951

Top 20 records on 21 October 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 October 1951	Denison, US	daily rain	75.4 mm (3.0 in)	49.0 mm (1.9 in)	50 years	60 of 100 (Major)
21 October 1951	Fremont, US	daily rain	47.0 mm (1.9 in)	26.7 mm (1.1 in)	44 years	44 of 100 (Notable)
21 October 1951	Blair, US	daily rain	46.7 mm (1.8 in)	24.6 mm (1.0 in)	50 years	42 of 100 (Notable)
21 October 1951	Watertown Wwtp, US	daily rain	50.3 mm (2.0 in)	23.6 mm (0.9 in)	34 years	42 of 100 (Notable)
21 October 1951	Hilliard, US	daily rain	161.5 mm (6.4 in)	93.4 mm (3.7 in)	0 years	37 of 100 (Notable)
21 October 1951	Carroll, US	monthly rain	65.0 mm (2.6 in)	7.1 mm (0.28 in)	54 years	37 of 100 (Notable)
21 October 1951	La Crosse Wb City, US	daily rain	31.8 mm (1.3 in)	16.8 mm (0.7 in)	42 years	37 of 100 (Notable)
21 October 1951	Collbran, US	daily snowfall	10.2 cm (4.0 in)	9.9 cm (3.9 in)	42 years	36 of 100 (Notable)
21 October 1951	Tyndall, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	55 years	36 of 100 (Notable)
21 October 1951	Kimball 2NE, US	daily snowfall	10.2 cm (4.0 in)	7.7 cm (3.0 in)	44 years	35 of 100 (Notable)
21 October 1951	Chikodi, IN	daily rain	67.3 mm (2.6 in)	39.6 mm (1.6 in)	16 years	33 of 100 (Routine)
21 October 1951	Watertown Rgnl AP, US	daily snowfall	5.8 cm (2.3 in)	5.8 cm (2.3 in)	57 years	33 of 100 (Routine)
21 October 1951	Strehla, ZA	daily rain	26.7 mm (1.1 in)	16.3 mm (0.6 in)	29 years	32 of 100 (Routine)
21 October 1951	Sivaganga, IN	daily rain	58.9 mm (2.3 in)	34.0 mm (1.3 in)	28 years	31 of 100 (Routine)
21 October 1951	Scottsboro, US	daily rain	25.4 mm (1.0 in)	17.3 mm (0.7 in)	50 years	31 of 100 (Routine)
21 October 1951	Decorah, US	daily rain	28.7 mm (1.1 in)	10.7 mm (0.4 in)	56 years	31 of 100 (Routine)
21 October 1951	Harlan, US	daily rain	38.1 mm (1.5 in)	11.2 mm (0.4 in)	50 years	30 of 100 (Routine)
21 October 1951	Gardiner, US	monthly low min	-9.4 C (15.1 F)	0.5 C (0.9 F)	45 years	30 of 100 (Routine)
21 October 1951	Malavalli, IN	daily rain	53.3 mm (2.1 in)	33.2 mm (1.3 in)	21 years	29 of 100 (Routine)
21 October 1951	Grinnell 3 SW, US	daily rain	30.2 mm (1.2 in)	15.5 mm (0.6 in)	42 years	29 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 1951

Records set or tied on this calendar date in each year from 1795 to 1951. 1951 had 382 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 1951-10-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	284
20 to 40	20
40 to 60	11
60 to 80	4
80 to 100	2