Weather Records on 27 October 1970

1,071 weather records were set or tied worldwide on 27 October 1970. Highest significance: Winnibigoshish Dam, US.

Key Facts for 27 October 1970

On 27 October 1970, 1,071 weather records were set or tied at long-record stations worldwide.
145 were record highs and 553 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 61 monthly and 1,009 daily.
Winnibigoshish Dam set a daily record precipitation of 35.1 mm (1.4 in) on 27 October 1970.
Across 159 earlier years (1802 to 2025) the same calendar date averaged 474 records.

Record Map

1,071 stations

1,071 station records on 27 October 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 October 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Winnibigoshish Dam	United States	Record daily precipitation	35.1 mm (1.4 in)	61 of 100 (Major)
Oden 1 SE	United States	Record daily precipitation	109.0 mm (4.3 in)	54 of 100 (Notable)
Alum Fk	United States	Record daily precipitation	139.7 mm (5.5 in)	52 of 100 (Notable)
Del Norte 3ENE	United States	Record daily snowfall	15.2 cm (6.0 in)	52 of 100 (Notable)
Mt Ida 3 SE	United States	Record daily precipitation	139.4 mm (5.5 in)	50 of 100 (Notable)
Longview	United States	Record daily precipitation	114.3 mm (4.5 in)	50 of 100 (Notable)
Corsicana	United States	Record daily precipitation	81.5 mm (3.2 in)	48 of 100 (Notable)
De Quincy	United States	Record daily precipitation	113.5 mm (4.5 in)	46 of 100 (Notable)
Wagoner	United States	Record daily precipitation	67.1 mm (2.6 in)	46 of 100 (Notable)
Sharon Springs	United States	Record daily snowfall	7.6 cm (3.0 in)	44 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	96.5 mm (3.8 in)	44 of 100 (Notable)
Franklin 3 NW	United States	Record daily precipitation	88.9 mm (3.5 in)	43 of 100 (Notable)
Barrow AP	United States	Record low minimum temperature	-35.6 C (-32.1 F)	43 of 100 (Notable)
Jessieville	United States	Record daily precipitation	208.3 mm (8.2 in)	42 of 100 (Notable)
Sugar City	United States	Record low minimum temperature	-17.8 C (0.0 F)	42 of 100 (Notable)
Little Falls 2NNE	United States	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Schreiber	Canada	Record daily precipitation	82.6 mm (3.3 in)	41 of 100 (Notable)
Benton	United States	Record daily precipitation	87.6 mm (3.4 in)	41 of 100 (Notable)
Montrose #2	United States	Record daily snowfall	6.4 cm (2.5 in)	41 of 100 (Notable)
Osage	United States	Record daily precipitation	33.3 mm (1.3 in)	41 of 100 (Notable)
Ft Ripley	United States	Record daily precipitation	25.4 mm (1.0 in)	41 of 100 (Notable)
Waxahachie	United States	Record daily precipitation	71.4 mm (2.8 in)	40 of 100 (Notable)
Mtn Home 1 NNW	United States	Record daily precipitation	66.0 mm (2.6 in)	39 of 100 (Notable)
Saint Francis	United States	Record daily snowfall	7.6 cm (3.0 in)	39 of 100 (Notable)
Bernalillo	United States	Record low maximum temperature	7.8 C (46.0 F)	39 of 100 (Notable)
Smithville	United States	Record daily precipitation	97.8 mm (3.9 in)	39 of 100 (Notable)
Ibapah	United States	Record low minimum temperature	-17.8 C (0.0 F)	39 of 100 (Notable)
Willcox	United States	Record low minimum temperature	-9.4 C (15.1 F)	38 of 100 (Notable)
Collegeville St John's	United States	Record daily precipitation	26.4 mm (1.0 in)	38 of 100 (Notable)
Harmony	United States	Record daily precipitation	43.2 mm (1.7 in)	38 of 100 (Notable)
Manti	United States	Record low maximum temperature	2.8 C (37.0 F)	38 of 100 (Notable)
Mauston 1 SE	United States	Record daily precipitation	29.7 mm (1.2 in)	38 of 100 (Notable)
Eureka Springs 3 WNW	United States	Record daily precipitation	64.8 mm (2.6 in)	37 of 100 (Notable)
Cresco 1 NE	United States	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Haxby 18 SW	United States	Record daily snowfall	15.2 cm (6.0 in)	37 of 100 (Notable)
Richfield Radio Ksvc	United States	Record low maximum temperature	3.3 C (37.9 F)	37 of 100 (Notable)
Shreveport	United States	Record daily precipitation	74.9 mm (2.9 in)	37 of 100 (Notable)
Collbran	United States	Record low minimum temperature	-12.8 C (9.0 F)	36 of 100 (Notable)
Westcliffe	United States	Record low maximum temperature	1.1 C (34.0 F)	36 of 100 (Notable)
Grove	United States	Record daily precipitation	50.8 mm (2.0 in)	36 of 100 (Notable)
Dryer 1 NW	United States	Record daily precipitation	73.9 mm (2.9 in)	36 of 100 (Notable)
Clinton	United States	Record daily precipitation	86.9 mm (3.4 in)	35 of 100 (Notable)
Mena	United States	Record daily precipitation	82.0 mm (3.2 in)	35 of 100 (Notable)
Odell 2 N	United States	Record daily precipitation	95.5 mm (3.8 in)	35 of 100 (Notable)
Shirley	United States	Record daily precipitation	67.3 mm (2.6 in)	35 of 100 (Notable)
Crested Butte	United States	Record low maximum temperature	-2.8 C (27.0 F)	35 of 100 (Notable)
Medford	United States	Record daily precipitation	31.5 mm (1.2 in)	35 of 100 (Notable)
Globe Rs	United States	Record low minimum temperature	-3.9 C (25.0 F)	34 of 100 (Routine)
Charles City	United States	Record daily precipitation	30.5 mm (1.2 in)	34 of 100 (Routine)
Wasola 5N	United States	Record daily precipitation	86.4 mm (3.4 in)	34 of 100 (Routine)
Prentice #2	United States	Record daily precipitation	32.3 mm (1.3 in)	34 of 100 (Routine)
Denair 3 NNE	United States	Record low minimum temperature	-2.2 C (28.0 F)	33 of 100 (Routine)
Rangely 1E	United States	Record low maximum temperature	5.0 C (41.0 F)	33 of 100 (Routine)
Ashton 1N	United States	Record low maximum temperature	-2.8 C (27.0 F)	33 of 100 (Routine)
Ashton 1N	United States	Record low minimum temperature	-17.8 C (0.0 F)	33 of 100 (Routine)
Cloquet	United States	Record daily precipitation	25.7 mm (1.0 in)	33 of 100 (Routine)
King City	United States	Record daily precipitation	35.8 mm (1.4 in)	33 of 100 (Routine)
Palisade	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Minden	United States	Record low minimum temperature	-12.8 C (9.0 F)	33 of 100 (Routine)
Pioche	United States	Record low minimum temperature	-7.8 C (18.0 F)	33 of 100 (Routine)

Counts by Type and Timescale

1,071 records

Records set or tied on 27 October 1970 by type: Highest daily maximum 33, Lowest daily maximum 244, Highest daily minimum 112, Lowest daily minimum 309, Heaviest daily rainfall 297, Heaviest daily snowfall 55, Deepest snow cover 21.

Records on 27 October 1970 by type
Record type	Records
Highest daily maximum	33
Lowest daily maximum	244
Highest daily minimum	112
Lowest daily minimum	309
Heaviest daily rainfall	297
Heaviest daily snowfall	55
Deepest snow cover	21

Records on 27 October 1970 by timescale: all-time 1, monthly 61, daily 1,009.

How Much Records Were Beaten By

879 broken records

Margins by which the 879 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 279.0. Ties are not counted.

Top 20 by Significance

27 October 1970

Top 20 records on 27 October 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 October 1970	Winnibigoshish Dam, US	daily rain	35.1 mm (1.4 in)	28.0 mm (1.1 in)	74 years	61 of 100 (Major)
27 October 1970	Oden 1 SE, US	daily rain	109.0 mm (4.3 in)	70.9 mm (2.8 in)	35 years	54 of 100 (Notable)
27 October 1970	Alum Fk, US	monthly rain	139.7 mm (5.5 in)	53.3 mm (2.1 in)	21 years	52 of 100 (Notable)
27 October 1970	Del Norte 3ENE, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	51 years	52 of 100 (Notable)
27 October 1970	Mt Ida 3 SE, US	monthly rain	139.4 mm (5.5 in)	30.9 mm (1.2 in)	51 years	50 of 100 (Notable)
27 October 1970	Longview, US	daily rain	114.3 mm (4.5 in)	82.5 mm (3.2 in)	16 years	50 of 100 (Notable)
27 October 1970	Corsicana, US	daily rain	81.5 mm (3.2 in)	61.2 mm (2.4 in)	52 years	48 of 100 (Notable)
27 October 1970	De Quincy, US	daily rain	113.5 mm (4.5 in)	105.4 mm (4.1 in)	11 years	46 of 100 (Notable)
27 October 1970	Wagoner, US	daily rain	67.1 mm (2.6 in)	39.2 mm (1.5 in)	70 years	46 of 100 (Notable)
27 October 1970	Sharon Springs, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	73 years	44 of 100 (Notable)
27 October 1970	Hillsboro, US	daily rain	96.5 mm (3.8 in)	55.4 mm (2.2 in)	35 years	44 of 100 (Notable)
27 October 1970	Franklin 3 NW, US	daily rain	88.9 mm (3.5 in)	62.7 mm (2.5 in)	28 years	43 of 100 (Notable)
27 October 1970	Barrow AP, US	monthly low min	-35.6 C (-32.1 F)	3.9 C (7.0 F)	66 years	43 of 100 (Notable)
27 October 1970	Jessieville, US	monthly rain	208.3 mm (8.2 in)	29.7 mm (1.2 in)	40 years	42 of 100 (Notable)
27 October 1970	Sugar City, US	daily low min	-17.8 C (0.0 F)	7.8 C (14.0 F)	59 years	42 of 100 (Notable)
27 October 1970	Little Falls 2NNE, US	daily rain	33.0 mm (1.3 in)	21.6 mm (0.9 in)	52 years	42 of 100 (Notable)
27 October 1970	Schreiber, CA	daily rain	82.6 mm (3.3 in)	26.0 mm (1.0 in)	39 years	41 of 100 (Notable)
27 October 1970	Benton, US	daily rain	87.6 mm (3.4 in)	49.2 mm (1.9 in)	28 years	41 of 100 (Notable)
27 October 1970	Montrose #2, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	74 years	41 of 100 (Notable)
27 October 1970	Osage, US	daily rain	33.3 mm (1.3 in)	11.2 mm (0.4 in)	73 years	41 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 1970

Records set or tied on this calendar date in each year from 1802 to 1970. 1970 had 1,071 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 1970-10-27: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	842
50 to 100	32
100 to 150	3
150 to 200	1
200 to 250	0
250 to 300	1