Weather Records on 20 October 1963

765 weather records were set or tied worldwide on 20 October 1963. Highest significance: Collbran, US.

Key Facts for 20 October 1963

On 20 October 1963, 765 weather records were set or tied at long-record stations worldwide.
594 were record highs and 9 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 4 monthly and 759 daily.
Collbran set a daily record precipitation of 38.1 mm (1.5 in) on 20 October 1963.
Across 160 earlier years (1806 to 2025) the same calendar date averaged 455 records.

Record Map

765 stations

765 station records on 20 October 1963 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 October 1963: highest significance records shown on the map
Station	Country	Type	Value	Significance
Collbran	United States	Record daily precipitation	38.1 mm (1.5 in)	62 of 100 (Major)
Denman Island	Canada	Record daily precipitation	68.3 mm (2.7 in)	55 of 100 (Notable)
Montrose #2	United States	Record daily precipitation	43.2 mm (1.7 in)	54 of 100 (Notable)
Sidney 6NNW	United States	Record daily precipitation	36.8 mm (1.4 in)	54 of 100 (Notable)
Shawnigan Lake	Canada	Record daily precipitation	53.1 mm (2.1 in)	51 of 100 (Notable)
Hilland 2 NW	United States	Record daily precipitation	38.6 mm (1.5 in)	50 of 100 (Notable)
Amanzamnyama (Bos)	South Africa	Record daily precipitation	58.0 mm (2.3 in)	49 of 100 (Notable)
Colwana (Bos)	South Africa	Record daily precipitation	71.0 mm (2.8 in)	47 of 100 (Notable)
Saltspring Island	Canada	Record daily precipitation	27.7 mm (1.1 in)	46 of 100 (Notable)
Toronto	Canada	Record high minimum temperature	13.3 C (55.9 F)	40 of 100 (Notable)
Port Alice	Canada	Record daily precipitation	133.6 mm (5.3 in)	39 of 100 (Notable)
Hecla	United States	Record daily precipitation	26.2 mm (1.0 in)	39 of 100 (Notable)
Paonia 1SW	United States	Record daily precipitation	36.3 mm (1.4 in)	37 of 100 (Notable)
Vriddhachalam	India	Record daily precipitation	140.0 mm (5.5 in)	36 of 100 (Notable)
Mvenyane (Bos)	South Africa	Record daily precipitation	43.0 mm (1.7 in)	36 of 100 (Notable)
Julesburg	United States	Record daily precipitation	41.9 mm (1.6 in)	36 of 100 (Notable)
Kailua 446	United States	Record daily precipitation	71.1 mm (2.8 in)	36 of 100 (Notable)
Montreal McGill	Canada	Record high maximum temperature	22.2 C (72.0 F)	35 of 100 (Notable)
Cowichan Bay Cherry Point	Canada	Record daily precipitation	32.3 mm (1.3 in)	34 of 100 (Routine)
Cambridge Galt Moe	Canada	Record high maximum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Ft Yates 4 SW	United States	Record daily precipitation	33.0 mm (1.3 in)	33 of 100 (Routine)
Bancroft	Canada	Record high maximum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Mnt Fletcher (Tnk)	South Africa	Record daily precipitation	32.0 mm (1.3 in)	31 of 100 (Routine)
Montrose 1	United States	Record daily precipitation	40.6 mm (1.6 in)	31 of 100 (Routine)
Spencer 1 N	United States	Record daily precipitation	27.2 mm (1.1 in)	31 of 100 (Routine)
Pointe Au Pere	Canada	Record high minimum temperature	9.4 C (48.9 F)	30 of 100 (Routine)
Cedaredge	United States	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Piute Dam	United States	Record high minimum temperature	11.1 C (52.0 F)	30 of 100 (Routine)
Coquitlam Lake	Canada	Record daily precipitation	117.6 mm (4.6 in)	29 of 100 (Routine)
Cedarville	United States	Record high minimum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Tuscola	United States	Record high minimum temperature	15.6 C (60.1 F)	29 of 100 (Routine)
Lexington 3E	United States	Record high minimum temperature	17.8 C (64.0 F)	29 of 100 (Routine)
Alfred	United States	Record high maximum temperature	25.6 C (78.1 F)	29 of 100 (Routine)
Kenton	United States	Record high minimum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Panhandle	United States	Record daily precipitation	25.1 mm (1.0 in)	29 of 100 (Routine)
Evanston 1 E	United States	Record high minimum temperature	5.0 C (41.0 F)	29 of 100 (Routine)
Binghamton Wb City	United States	Record high maximum temperature	28.3 C (82.9 F)	29 of 100 (Routine)
Scottsbluff W B Heilig Fld AP	United States	Record daily precipitation	25.9 mm (1.0 in)	29 of 100 (Routine)
Garibaldi	Canada	Record daily precipitation	50.3 mm (2.0 in)	28 of 100 (Routine)
Gaspe	Canada	Record high maximum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Chicoutimi	Canada	Record high maximum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Port Hastings	Canada	Record high maximum temperature	23.9 C (75.0 F)	28 of 100 (Routine)
Mnt Frere (Tnk)	South Africa	Record daily precipitation	37.0 mm (1.5 in)	28 of 100 (Routine)
Ojai	United States	Record high minimum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Griggsville	United States	Record high minimum temperature	17.8 C (64.0 F)	28 of 100 (Routine)
N Loup	United States	Record high minimum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
North Bay	Canada	Record high minimum temperature	11.7 C (53.1 F)	27 of 100 (Routine)
Jonesboro 3 SSE	United States	Record high maximum temperature	31.7 C (89.1 F)	27 of 100 (Routine)
Ozark	United States	Record high maximum temperature	31.1 C (88.0 F)	27 of 100 (Routine)
Houlton	United States	Record high maximum temperature	23.9 C (75.0 F)	27 of 100 (Routine)
Lyman	United States	Record daily precipitation	25.1 mm (1.0 in)	27 of 100 (Routine)
Flandreau	United States	Record high minimum temperature	14.4 C (57.9 F)	27 of 100 (Routine)
Loa	United States	Record high minimum temperature	5.6 C (42.1 F)	27 of 100 (Routine)
Collingwood	Canada	Record high minimum temperature	13.3 C (55.9 F)	26 of 100 (Routine)
Bathurst	Canada	Record high maximum temperature	23.3 C (73.9 F)	26 of 100 (Routine)
Woodstock	Canada	Record high maximum temperature	25.0 C (77.0 F)	26 of 100 (Routine)
Palpan	Mexico	Record daily precipitation	31.0 mm (1.2 in)	26 of 100 (Routine)
San Gabriel	Mexico	Record daily precipitation	45.0 mm (1.8 in)	26 of 100 (Routine)
Havana	United States	Record high minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Independence	United States	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)

Counts by Type and Timescale

765 records

Records set or tied on 20 October 1963 by type: Highest daily maximum 285, Lowest daily maximum 7, Highest daily minimum 309, Lowest daily minimum 2, Heaviest daily rainfall 162.

Records on 20 October 1963 by type
Record type	Records
Highest daily maximum	285
Lowest daily maximum	7
Highest daily minimum	309
Lowest daily minimum	2
Heaviest daily rainfall	162
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 October 1963 by timescale: all-time 2, monthly 4, daily 759.

How Much Records Were Beaten By

600 broken records

Margins by which the 600 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 82.8. Ties are not counted.

Top 20 by Significance

20 October 1963

Top 20 records on 20 October 1963 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 October 1963	Collbran, US	daily rain	38.1 mm (1.5 in)	26.7 mm (1.1 in)	62 years	62 of 100 (Major)
20 October 1963	Denman Island, CA	daily rain	68.3 mm (2.7 in)	43.2 mm (1.7 in)	48 years	55 of 100 (Notable)
20 October 1963	Montrose #2, US	all-time rain	43.2 mm (1.7 in)	5.1 mm (0.20 in)	67 years	54 of 100 (Notable)
20 October 1963	Sidney 6NNW, US	daily rain	36.8 mm (1.4 in)	30.2 mm (1.2 in)	32 years	54 of 100 (Notable)
20 October 1963	Shawnigan Lake, CA	daily rain	53.1 mm (2.1 in)	35.6 mm (1.4 in)	28 years	51 of 100 (Notable)
20 October 1963	Hilland 2 NW, US	daily rain	38.6 mm (1.5 in)	25.9 mm (1.0 in)	38 years	50 of 100 (Notable)
20 October 1963	Amanzamnyama (Bos), ZA	daily rain	58.0 mm (2.3 in)	31.8 mm (1.3 in)	30 years	49 of 100 (Notable)
20 October 1963	Colwana (Bos), ZA	daily rain	71.0 mm (2.8 in)	39.0 mm (1.5 in)	18 years	47 of 100 (Notable)
20 October 1963	Saltspring Island, CA	daily rain	27.7 mm (1.1 in)	15.5 mm (0.6 in)	66 years	46 of 100 (Notable)
20 October 1963	Toronto, CA	daily high min	13.3 C (55.9 F)	1.1 C (2.0 F)	95 years	40 of 100 (Notable)
20 October 1963	Port Alice, CA	daily rain	133.6 mm (5.3 in)	82.8 mm (3.3 in)	2 years	39 of 100 (Notable)
20 October 1963	Hecla, US	daily rain	26.2 mm (1.0 in)	21.1 mm (0.8 in)	10 years	39 of 100 (Notable)
20 October 1963	Paonia 1SW, US	monthly rain	36.3 mm (1.4 in)	0.7 mm (0.03 in)	68 years	37 of 100 (Notable)
20 October 1963	Vriddhachalam, IN	monthly rain	140.0 mm (5.5 in)	7.7 mm (0.30 in)	59 years	36 of 100 (Notable)
20 October 1963	Mvenyane (Bos), ZA	daily rain	43.0 mm (1.7 in)	22.2 mm (0.9 in)	30 years	36 of 100 (Notable)
20 October 1963	Julesburg, US	monthly rain	41.9 mm (1.6 in)	5.1 mm (0.20 in)	41 years	36 of 100 (Notable)
20 October 1963	Kailua 446, US	daily rain	71.1 mm (2.8 in)	23.3 mm (0.9 in)	56 years	36 of 100 (Notable)
20 October 1963	Montreal McGill, CA	daily high max	22.2 C (72.0 F)	1.6 C (2.9 F)	78 years	35 of 100 (Notable)
20 October 1963	Cowichan Bay Cherry Point, CA	daily rain	32.3 mm (1.3 in)	20.4 mm (0.8 in)	8 years	34 of 100 (Routine)
20 October 1963	Cambridge Galt Moe, CA	daily high max	25.6 C (78.1 F)	2.3 C (4.1 F)	75 years	33 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

1806 to 1963

Records set or tied on this calendar date in each year from 1806 to 1963. 1963 had 765 records.

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

Records on 10-20 in each year
Year	Records
1806	1
1835	1
1844	1
1846	1
1847	2
1851	1
1852	1
1858	1
1863	2
1864	2
1866	3
1867	1
1868	2
1872	2
1874	2
1875	3
1876	2
1877	1
1878	1
1880	3
1881	2
1884	1
1885	1
1886	1
1887	1
1888	6
1891	4
1892	4
1893	1
1894	3
1895	4
1896	9
1897	2
1898	7
1899	1
1900	8
1901	7
1902	5
1903	9
1904	13
1905	22
1906	28
1907	32
1908	26
1909	17
1910	31
1911	16
1912	6
1913	38
1914	16
1915	20
1916	72
1917	201
1918	34
1919	19
1920	81
1921	68
1922	83
1923	96
1924	182
1925	247
1926	147
1927	283
1928	92
1929	129
1930	672
1931	125
1932	331
1933	675
1934	422
1935	390
1936	370
1937	189
1938	231
1939	367
1940	757
1941	459
1942	152
1943	501
1944	288
1945	363
1946	310
1947	1,494
1948	320
1949	1,084
1950	619
1951	279
1952	520
1953	1,057
1954	262
1955	529
1956	283
1957	440
1958	461
1959	451
1960	671
1961	479
1962	733
1963	765
1964	598
1965	340
1966	857
1967	511
1968	244
1969	607
1970	710
1971	606
1972	1,724
1973	878
1974	1,122
1975	587
1976	1,304
1977	467
1978	508
1979	1,647
1980	350
1981	1,083
1982	1,191
1983	944
1984	1,562
1985	835
1986	823
1987	590
1988	737
1989	2,092
1990	609
1991	971
1992	1,174
1993	1,238
1994	650
1995	703
1996	1,417
1997	949
1998	683
1999	603
2000	737
2001	589
2002	985
2003	1,761
2004	1,861
2005	1,092
2006	1,170
2007	923
2008	477
2009	786
2010	539
2011	785
2012	945
2013	592
2014	851
2015	523
2016	947
2017	602
2018	394
2019	744
2020	1,010
2021	900
2022	834
2023	1,468
2024	707
2025	326

Download the Data

Data for records on 1963-10-20: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	579
20 to 40	18
40 to 60	2
60 to 80	0
80 to 100	1