Weather Records on 27 October 1920

98 weather records were set or tied worldwide on 27 October 1920. Highest significance: Hamilton, CA.

Key Facts for 27 October 1920

On 27 October 1920, 98 weather records were set or tied at long-record stations worldwide.
47 were record highs and 5 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 96 daily.
Hamilton set a monthly record daily precipitation of 71.1 mm (2.8 in) on 27 October 1920.
Across 159 earlier years (1802 to 2025) the same calendar date averaged 481 records.

Record Map

98 stations

98 station records on 27 October 1920 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 October 1920: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hamilton	Canada	Record daily precipitation	71.1 mm (2.8 in)	50 of 100 (Notable)
Owen Sound	Canada	Record daily precipitation	41.4 mm (1.6 in)	46 of 100 (Notable)
Lucknow	Canada	Record daily precipitation	50.8 mm (2.0 in)	45 of 100 (Notable)
Port Dover	Canada	Record daily precipitation	34.0 mm (1.3 in)	43 of 100 (Notable)
Westminster	Canada	Record daily precipitation	36.1 mm (1.4 in)	35 of 100 (Notable)
Clontarf	Canada	Record daily precipitation	25.1 mm (1.0 in)	30 of 100 (Routine)
Port Stanley	Canada	Record high maximum temperature	23.3 C (73.9 F)	29 of 100 (Routine)
Peterborough	Canada	Record daily precipitation	30.2 mm (1.2 in)	29 of 100 (Routine)
Clinton	United States	Record daily precipitation	35.6 mm (1.4 in)	27 of 100 (Routine)
Foster (Post Office)	Australia	Record daily precipitation	38.1 mm (1.5 in)	24 of 100 (Routine)
Falmouth	United States	Record daily precipitation	43.9 mm (1.7 in)	24 of 100 (Routine)
Cornwall	United States	Record daily precipitation	30.5 mm (1.2 in)	24 of 100 (Routine)
Stoney Creek	Canada	Record daily precipitation	33.0 mm (1.3 in)	21 of 100 (Routine)
Toronto	Canada	Record daily precipitation	25.1 mm (1.0 in)	21 of 100 (Routine)
Jena Sternwarte	Germany	Record low maximum temperature	3.0 C (37.4 F)	21 of 100 (Routine)
Warrnambool Shire Office	Australia	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Guelph Oac	Canada	Record daily precipitation	23.9 mm (0.9 in)	20 of 100 (Routine)
Ottawa	Canada	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Lorne Post Office	Australia	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Paris	Canada	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Cape Schanck Lighthouse	Australia	Record daily precipitation	20.3 mm (0.8 in)	20 of 100 (Routine)
Cowes	Australia	Record daily precipitation	26.9 mm (1.1 in)	19 of 100 (Routine)
Hastings Post Office	Australia	Record daily precipitation	19.6 mm (0.8 in)	19 of 100 (Routine)
Bic	Canada	Record daily precipitation	20.3 mm (0.8 in)	19 of 100 (Routine)
Concord	United States	Record high maximum temperature	23.3 C (73.9 F)	19 of 100 (Routine)
Parry Sound	Canada	Record daily precipitation	41.7 mm (1.6 in)	18 of 100 (Routine)
Lindsay	Canada	Record daily precipitation	26.9 mm (1.1 in)	18 of 100 (Routine)
Pointe Au Pere	Canada	Record daily precipitation	15.2 mm (0.6 in)	18 of 100 (Routine)
Dromana	Australia	Record daily precipitation	14.0 mm (0.6 in)	17 of 100 (Routine)
Ottawa Cda	Canada	Record daily precipitation	18.5 mm (0.7 in)	17 of 100 (Routine)
Stonecliffe	Canada	Record daily precipitation	19.8 mm (0.8 in)	17 of 100 (Routine)
Chicoutimi	Canada	Record high maximum temperature	20.0 C (68.0 F)	17 of 100 (Routine)
Chicoutimi	Canada	Record high minimum temperature	7.8 C (46.0 F)	17 of 100 (Routine)
Sale Mercury Office	Australia	Record daily precipitation	11.4 mm (0.4 in)	16 of 100 (Routine)
Port Stanley	Canada	Record daily precipitation	27.2 mm (1.1 in)	16 of 100 (Routine)
Welland	Canada	Record high minimum temperature	14.4 C (57.9 F)	16 of 100 (Routine)
Toronto	Canada	Record high minimum temperature	13.3 C (55.9 F)	16 of 100 (Routine)
Woodstock	Canada	Record daily precipitation	27.9 mm (1.1 in)	15 of 100 (Routine)
Toledo Blade	United States	Record daily precipitation	16.5 mm (0.6 in)	15 of 100 (Routine)
Woods Point	Australia	Record daily precipitation	31.0 mm (1.2 in)	14 of 100 (Routine)
Caulfield (Racecourse)	Australia	Record daily precipitation	12.4 mm (0.5 in)	14 of 100 (Routine)
Quebec	Canada	Record daily precipitation	33.5 mm (1.3 in)	14 of 100 (Routine)
Lowell	United States	Record high maximum temperature	23.9 C (75.0 F)	14 of 100 (Routine)
Paris	Canada	Record high minimum temperature	13.3 C (55.9 F)	13 of 100 (Routine)
Vineland	United States	Record high minimum temperature	18.3 C (64.9 F)	13 of 100 (Routine)
Bindi	Australia	Record daily precipitation	17.3 mm (0.7 in)	12 of 100 (Routine)
Woodside	Australia	Record daily precipitation	13.2 mm (0.5 in)	12 of 100 (Routine)
Setauket Strong	United States	Record high maximum temperature	23.3 C (73.9 F)	12 of 100 (Routine)
Wilmington Wb City	United States	Record high minimum temperature	20.6 C (69.1 F)	12 of 100 (Routine)
Northfield	United States	Record high maximum temperature	20.0 C (68.0 F)	12 of 100 (Routine)
Washington	United States	Record high minimum temperature	18.9 C (66.0 F)	12 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record low minimum temperature	-0.9 C (30.4 F)	11 of 100 (Routine)
Cape May 2 NW	United States	Record high minimum temperature	17.8 C (64.0 F)	11 of 100 (Routine)
Atlantic City Marina	United States	Record high minimum temperature	17.8 C (64.0 F)	11 of 100 (Routine)
Kingston Queens U	Canada	Record daily precipitation	18.0 mm (0.7 in)	10 of 100 (Routine)
Stoney Creek	Canada	Record high minimum temperature	11.7 C (53.1 F)	10 of 100 (Routine)
World Trade Ctr	United States	Record high minimum temperature	16.7 C (62.1 F)	10 of 100 (Routine)
Harrisburg - Coop	United States	Record high maximum temperature	22.8 C (73.0 F)	10 of 100 (Routine)
Baltimore Customs House	United States	Record high minimum temperature	18.9 C (66.0 F)	10 of 100 (Routine)

Counts by Type and Timescale

98 records

Records set or tied on 27 October 1920 by type: Highest daily maximum 17, Lowest daily maximum 2, Highest daily minimum 30, Lowest daily minimum 3, Heaviest daily rainfall 46.

Records on 27 October 1920 by type
Record type	Records
Highest daily maximum	17
Lowest daily maximum	2
Highest daily minimum	30
Lowest daily minimum	3
Heaviest daily rainfall	46
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 October 1920 by timescale: all-time 0, monthly 2, daily 96.

How Much Records Were Beaten By

75 broken records

Margins by which the 75 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 39.1. Ties are not counted.

Top 20 by Significance

27 October 1920

Top 20 records on 27 October 1920 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 October 1920	Hamilton, CA	monthly rain	71.1 mm (2.8 in)	19.3 mm (0.8 in)	47 years	50 of 100 (Notable)
27 October 1920	Owen Sound, CA	daily rain	41.4 mm (1.6 in)	28.7 mm (1.1 in)	27 years	46 of 100 (Notable)
27 October 1920	Lucknow, CA	daily rain	50.8 mm (2.0 in)	39.1 mm (1.5 in)	9 years	45 of 100 (Notable)
27 October 1920	Port Dover, CA	daily rain	34.0 mm (1.3 in)	23.1 mm (0.9 in)	41 years	43 of 100 (Notable)
27 October 1920	Westminster, CA	daily rain	36.1 mm (1.4 in)	23.4 mm (0.9 in)	35 years	35 of 100 (Notable)
27 October 1920	Clontarf, CA	daily rain	25.1 mm (1.0 in)	14.7 mm (0.6 in)	24 years	30 of 100 (Routine)
27 October 1920	Port Stanley, CA	daily high max	23.3 C (73.9 F)	5.5 C (9.9 F)	45 years	29 of 100 (Routine)
27 October 1920	Peterborough, CA	daily rain	30.2 mm (1.2 in)	15.0 mm (0.6 in)	20 years	29 of 100 (Routine)
27 October 1920	Clinton, US	daily rain	35.6 mm (1.4 in)	24.2 mm (1.0 in)	13 years	27 of 100 (Routine)
27 October 1920	Foster (Post Office), AU	daily rain	38.1 mm (1.5 in)	14.7 mm (0.6 in)	15 years	24 of 100 (Routine)
27 October 1920	Falmouth, US	daily rain	43.9 mm (1.7 in)	22.8 mm (0.9 in)	1 year	24 of 100 (Routine)
27 October 1920	Cornwall, US	daily rain	30.5 mm (1.2 in)	11.2 mm (0.4 in)	33 years	24 of 100 (Routine)
27 October 1920	Stoney Creek, CA	daily rain	33.0 mm (1.3 in)	12.7 mm (0.5 in)	20 years	21 of 100 (Routine)
27 October 1920	Toronto, CA	daily rain	25.1 mm (1.0 in)	5.8 mm (0.23 in)	20 years	21 of 100 (Routine)
27 October 1920	Jena Sternwarte, DE	daily low max	3.0 C (37.4 F)	0.7 C (1.3 F)	38 years	21 of 100 (Routine)
27 October 1920	Warrnambool Shire Office, AU	daily rain	16.0 mm (0.6 in)	9.1 mm (0.36 in)	32 years	20 of 100 (Routine)
27 October 1920	Cape Otway Lighthouse, AU	daily rain	22.9 mm (0.9 in)	12.7 mm (0.5 in)	2 years	20 of 100 (Routine)
27 October 1920	Guelph Oac, CA	daily rain	23.9 mm (0.9 in)	8.4 mm (0.33 in)	31 years	20 of 100 (Routine)
27 October 1920	Ottawa, CA	daily rain	18.0 mm (0.7 in)	5.0 mm (0.20 in)	47 years	20 of 100 (Routine)
27 October 1920	Lorne Post Office, AU	daily rain	22.9 mm (0.9 in)	8.2 mm (0.32 in)	30 years	20 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

1802 to 1920

Records set or tied on this calendar date in each year from 1802 to 1920. 1920 had 98 records.

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

Records on 10-27 in each year
Year	Records
1802	1
1807	1
1816	1
1831	1
1838	1
1840	1
1841	2
1847	2
1849	2
1856	2
1861	1
1866	4
1869	4
1870	2
1871	2
1873	1
1874	2
1876	1
1878	1
1880	2
1881	2
1885	2
1886	2
1887	5
1888	3
1889	1
1890	2
1892	3
1893	2
1894	2
1895	3
1896	2
1898	4
1899	14
1900	9
1901	5
1902	8
1903	23
1904	6
1905	11
1906	11
1907	9
1908	16
1909	13
1910	14
1911	20
1912	42
1913	91
1914	54
1915	65
1916	28
1917	45
1918	77
1919	74
1920	98
1921	37
1922	97
1923	63
1924	104
1925	383
1926	176
1927	521
1928	162
1929	92
1930	158
1931	241
1932	319
1933	313
1934	173
1935	266
1936	725
1937	477
1938	160
1939	836
1940	605
1941	409
1942	629
1943	479
1944	519
1945	674
1946	450
1947	551
1948	160
1949	182
1950	603
1951	269
1952	640
1953	285
1954	493
1955	578
1956	339
1957	1,116
1958	163
1959	376
1960	180
1961	428
1962	704
1963	798
1964	294
1965	284
1966	256
1967	485
1968	436
1969	532
1970	1,071
1971	1,157
1972	694
1973	719
1974	384
1975	424
1976	1,387
1977	608
1978	593
1979	553
1980	1,148
1981	1,076
1982	793
1983	707
1984	1,183
1985	592
1986	531
1987	863
1988	829
1989	1,506
1990	441
1991	1,722
1992	703
1993	667
1994	894
1995	1,238
1996	1,651
1997	2,783
1998	1,696
1999	991
2000	832
2001	1,100
2002	1,040
2003	1,669
2004	1,546
2005	897
2006	1,442
2007	950
2008	650
2009	954
2010	1,676
2011	690
2012	991
2013	706
2014	973
2015	395
2016	761
2017	582
2018	701
2019	1,364
2020	2,886
2021	536
2022	657
2023	1,668
2024	694
2025	524

Download the Data

Data for records on 1920-10-27: 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 5	46
5 to 10	15
10 to 15	6
15 to 20	2
20 to 25	4
25 to 30	1
30 to 35	0
35 to 40	1