Weather Records on 27 October 1947

551 weather records were set or tied worldwide on 27 October 1947. Highest significance: Lancaster 4 WSW, US.

Key Facts for 27 October 1947

On 27 October 1947, 551 weather records were set or tied at long-record stations worldwide.
402 were record highs and 18 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 542 daily.
Lancaster 4 WSW set a daily record precipitation of 43.2 mm (1.7 in) on 27 October 1947.
Across 159 earlier years (1802 to 2025) the same calendar date averaged 478 records.

Record Map

551 stations

551 station records on 27 October 1947 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 October 1947: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lancaster 4 WSW	United States	Record daily precipitation	43.2 mm (1.7 in)	48 of 100 (Notable)
Covington 3 SW	United States	Record daily precipitation	95.3 mm (3.8 in)	47 of 100 (Notable)
Hoopeston	United States	Record daily precipitation	64.0 mm (2.5 in)	46 of 100 (Notable)
Dover 1 W	United States	Record daily precipitation	77.5 mm (3.1 in)	46 of 100 (Notable)
Danville	United States	Record daily precipitation	67.3 mm (2.6 in)	43 of 100 (Notable)
Bolivar Wtr Wks	United States	Record daily precipitation	84.3 mm (3.3 in)	42 of 100 (Notable)
Huehue 92.1	United States	Record daily precipitation	59.4 mm (2.3 in)	42 of 100 (Notable)
Elkader 6 SSW	United States	Record daily precipitation	38.1 mm (1.5 in)	41 of 100 (Notable)
Greenville 2 W	United States	Record daily precipitation	67.1 mm (2.6 in)	40 of 100 (Notable)
Milan Exp STN	United States	Record daily precipitation	83.6 mm (3.3 in)	40 of 100 (Notable)
Kankakee 3 SW	United States	Record daily precipitation	62.5 mm (2.5 in)	39 of 100 (Notable)
Tuscola	United States	Record daily precipitation	64.3 mm (2.5 in)	39 of 100 (Notable)
Dwight	United States	Record daily precipitation	54.9 mm (2.2 in)	38 of 100 (Notable)
Hampton	United States	Record daily precipitation	25.4 mm (1.0 in)	38 of 100 (Notable)
Kenton	United States	Record daily precipitation	75.2 mm (3.0 in)	38 of 100 (Notable)
Hopkinsville	United States	Record daily precipitation	64.8 mm (2.6 in)	37 of 100 (Notable)
Jose de Freitas	Brazil	Record daily precipitation	32.7 mm (1.3 in)	36 of 100 (Notable)
Union City	United States	Record daily precipitation	71.1 mm (2.8 in)	36 of 100 (Notable)
Viroqua	United States	Record daily precipitation	52.1 mm (2.1 in)	36 of 100 (Notable)
Prairie du Chien	United States	Record daily precipitation	31.5 mm (1.2 in)	35 of 100 (Notable)
1 WSW Princeton	United States	Record daily precipitation	58.4 mm (2.3 in)	34 of 100 (Routine)
Haiku 490	United States	Record daily precipitation	76.7 mm (3.0 in)	34 of 100 (Routine)
Saint John	Canada	Record high maximum temperature	19.4 C (66.9 F)	33 of 100 (Routine)
Manistee 3SE	United States	Record high minimum temperature	12.8 C (55.0 F)	33 of 100 (Routine)
Holly Bluff	United States	Record daily precipitation	89.9 mm (3.5 in)	32 of 100 (Routine)
Gore Bay	Canada	Record high minimum temperature	12.8 C (55.0 F)	31 of 100 (Routine)
Oregon Wtr Wks	United States	Record daily precipitation	33.8 mm (1.3 in)	31 of 100 (Routine)
Yazoo City	United States	Record daily precipitation	90.7 mm (3.6 in)	31 of 100 (Routine)
Shawano 2SSW	United States	Record high minimum temperature	13.9 C (57.0 F)	31 of 100 (Routine)
Parry Sound	Canada	Record high maximum temperature	22.8 C (73.0 F)	30 of 100 (Routine)
Grayling	United States	Record high minimum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Onaway 12 S	United States	Record high minimum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Mtn Grove 2 N	United States	Record daily precipitation	58.4 mm (2.3 in)	30 of 100 (Routine)
Jackson Exp STN	United States	Record daily precipitation	64.0 mm (2.5 in)	30 of 100 (Routine)
Montreal McGill	Canada	Record high minimum temperature	11.7 C (53.1 F)	29 of 100 (Routine)
Toledo Blade	United States	Record high minimum temperature	13.3 C (55.9 F)	29 of 100 (Routine)
Wausau Record Herald	United States	Record high minimum temperature	13.3 C (55.9 F)	29 of 100 (Routine)
Barduar	India	Record daily precipitation	62.0 mm (2.4 in)	28 of 100 (Routine)
Watseka Public Works	United States	Record daily precipitation	54.6 mm (2.1 in)	28 of 100 (Routine)
Owensboro 3ENE	United States	Record daily precipitation	39.4 mm (1.6 in)	28 of 100 (Routine)
Shelbyville 1 E	United States	Record daily precipitation	42.9 mm (1.7 in)	28 of 100 (Routine)
Higgins Lake	United States	Record high minimum temperature	17.2 C (63.0 F)	28 of 100 (Routine)
Newark Liberty Intl AP	United States	Record high maximum temperature	26.7 C (80.1 F)	28 of 100 (Routine)
Haileybury	Canada	Record high maximum temperature	22.8 C (73.0 F)	27 of 100 (Routine)
Clarendon	United States	Record daily precipitation	58.9 mm (2.3 in)	27 of 100 (Routine)
Princeton	United States	Record daily precipitation	42.9 mm (1.7 in)	27 of 100 (Routine)
Mackinaw City 2	United States	Record high minimum temperature	12.8 C (55.0 F)	27 of 100 (Routine)
Warren	United States	Record high maximum temperature	28.3 C (82.9 F)	27 of 100 (Routine)
Gladwin	United States	Record high maximum temperature	23.3 C (73.9 F)	27 of 100 (Routine)
Haileybury	Canada	Record high minimum temperature	10.6 C (51.1 F)	26 of 100 (Routine)
Middletown 4 W	United States	Record high maximum temperature	24.4 C (75.9 F)	26 of 100 (Routine)
Harrisburg	United States	Record daily precipitation	59.7 mm (2.4 in)	26 of 100 (Routine)
Roberts 3 N	United States	Record daily precipitation	57.9 mm (2.3 in)	26 of 100 (Routine)
Mayfield 2 S	United States	Record daily precipitation	80.3 mm (3.2 in)	26 of 100 (Routine)
Grand Cane Fire Twr	United States	Record daily precipitation	39.4 mm (1.6 in)	26 of 100 (Routine)
Defiance	United States	Record high minimum temperature	12.2 C (54.0 F)	26 of 100 (Routine)
Turbine	Canada	Record high minimum temperature	10.0 C (50.0 F)	25 of 100 (Routine)
Ottawa Cda	Canada	Record high maximum temperature	23.3 C (73.9 F)	25 of 100 (Routine)
Barrage Angliers	Canada	Record high maximum temperature	22.2 C (72.0 F)	25 of 100 (Routine)
Champaign 3S	United States	Record daily precipitation	65.5 mm (2.6 in)	25 of 100 (Routine)

Counts by Type and Timescale

551 records

Records set or tied on 27 October 1947 by type: Highest daily maximum 236, Lowest daily maximum 6, Highest daily minimum 166, Lowest daily minimum 12, Heaviest daily rainfall 131.

Records on 27 October 1947 by type
Record type	Records
Highest daily maximum	236
Lowest daily maximum	6
Highest daily minimum	166
Lowest daily minimum	12
Heaviest daily rainfall	131
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 27 October 1947 by timescale: all-time 0, monthly 9, daily 542.

How Much Records Were Beaten By

478 broken records

Margins by which the 478 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 72.6. Ties are not counted.

Top 20 by Significance

27 October 1947

Top 20 records on 27 October 1947 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 October 1947	Lancaster 4 WSW, US	daily rain	43.2 mm (1.7 in)	33.0 mm (1.3 in)	40 years	48 of 100 (Notable)
27 October 1947	Covington 3 SW, US	daily rain	95.3 mm (3.8 in)	58.5 mm (2.3 in)	40 years	47 of 100 (Notable)
27 October 1947	Hoopeston, US	daily rain	64.0 mm (2.5 in)	37.8 mm (1.5 in)	28 years	46 of 100 (Notable)
27 October 1947	Dover 1 W, US	daily rain	77.5 mm (3.1 in)	58.7 mm (2.3 in)	16 years	46 of 100 (Notable)
27 October 1947	Danville, US	daily rain	67.3 mm (2.6 in)	36.6 mm (1.4 in)	28 years	43 of 100 (Notable)
27 October 1947	Bolivar Wtr Wks, US	daily rain	84.3 mm (3.3 in)	48.7 mm (1.9 in)	26 years	42 of 100 (Notable)
27 October 1947	Huehue 92.1, US	daily rain	59.4 mm (2.3 in)	46.7 mm (1.8 in)	17 years	42 of 100 (Notable)
27 October 1947	Elkader 6 SSW, US	daily rain	38.1 mm (1.5 in)	25.4 mm (1.0 in)	40 years	41 of 100 (Notable)
27 October 1947	Greenville 2 W, US	daily rain	67.1 mm (2.6 in)	49.3 mm (1.9 in)	5 years	40 of 100 (Notable)
27 October 1947	Milan Exp STN, US	daily rain	83.6 mm (3.3 in)	52.1 mm (2.1 in)	5 years	40 of 100 (Notable)
27 October 1947	Kankakee 3 SW, US	daily rain	62.5 mm (2.5 in)	38.6 mm (1.5 in)	8 years	39 of 100 (Notable)
27 October 1947	Tuscola, US	daily rain	64.3 mm (2.5 in)	25.4 mm (1.0 in)	47 years	39 of 100 (Notable)
27 October 1947	Dwight, US	daily rain	54.9 mm (2.2 in)	23.7 mm (0.9 in)	28 years	38 of 100 (Notable)
27 October 1947	Hampton, US	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	51 years	38 of 100 (Notable)
27 October 1947	Kenton, US	daily rain	75.2 mm (3.0 in)	45.5 mm (1.8 in)	25 years	38 of 100 (Notable)
27 October 1947	Hopkinsville, US	daily rain	64.8 mm (2.6 in)	48.3 mm (1.9 in)	5 years	37 of 100 (Notable)
27 October 1947	Jose de Freitas, BR	daily rain	32.7 mm (1.3 in)	31.7 mm (1.2 in)	32 years	36 of 100 (Notable)
27 October 1947	Union City, US	daily rain	71.1 mm (2.8 in)	46.2 mm (1.8 in)	5 years	36 of 100 (Notable)
27 October 1947	Viroqua, US	daily rain	52.1 mm (2.1 in)	23.4 mm (0.9 in)	28 years	36 of 100 (Notable)
27 October 1947	Prairie du Chien, US	daily rain	31.5 mm (1.2 in)	21.3 mm (0.8 in)	28 years	35 of 100 (Notable)

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 1947

Records set or tied on this calendar date in each year from 1802 to 1947. 1947 had 551 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 1947-10-27: 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 10	419
10 to 20	24
20 to 30	15
30 to 40	8
40 to 50	8
50 to 60	3
60 to 70	0
70 to 80	1