Weather Records on 27 October 1977

608 weather records were set or tied worldwide on 27 October 1977. Highest significance: Franca, BR.

Key Facts for 27 October 1977

On 27 October 1977, 608 weather records were set or tied at long-record stations worldwide.
401 were record highs and 56 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 10 monthly and 597 daily.
Franca set an all-time record daily precipitation of 170.0 mm (6.7 in) on 27 October 1977.
Across 159 earlier years (1802 to 2025) the same calendar date averaged 477 records.

Record Map

608 stations

608 station records on 27 October 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 October 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Franca	Brazil	Record daily precipitation	170.0 mm (6.7 in)	64 of 100 (Major)
Hopewell	United States	Record daily precipitation	98.3 mm (3.9 in)	59 of 100 (Notable)
Puerto Madero	Mexico	Record low minimum temperature	10.6 C (51.1 F)	45 of 100 (Notable)
Warsaw 2 NW	United States	Record daily precipitation	36.8 mm (1.4 in)	45 of 100 (Notable)
Cotswold Hills	Australia	Record daily precipitation	41.0 mm (1.6 in)	44 of 100 (Notable)
Melbourne Regional Office	Australia	Record high maximum temperature	33.0 C (91.4 F)	44 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record high maximum temperature	31.0 C (87.8 F)	41 of 100 (Notable)
Catemaco	Mexico	Record low minimum temperature	10.0 C (50.0 F)	41 of 100 (Notable)
Cape St James	Canada	Record daily precipitation	57.3 mm (2.3 in)	40 of 100 (Notable)
Nannup	Australia	Record daily precipitation	26.4 mm (1.0 in)	39 of 100 (Notable)
Paso de San Antonio	Mexico	Record daily precipitation	34.8 mm (1.4 in)	39 of 100 (Notable)
Arcola	United States	Record daily precipitation	79.8 mm (3.1 in)	39 of 100 (Notable)
Itiuba	Brazil	Record daily precipitation	38.9 mm (1.5 in)	38 of 100 (Notable)
Vestervig	Denmark	Record high minimum temperature	10.9 C (51.6 F)	38 of 100 (Notable)
Niu Ridge 1035	United States	Record low minimum temperature	11.7 C (53.1 F)	38 of 100 (Notable)
W Liberty 3NW	United States	Record high minimum temperature	13.3 C (55.9 F)	37 of 100 (Notable)
Boras	Sweden	Record high minimum temperature	9.6 C (49.3 F)	35 of 100 (Notable)
Sugarloaf Rsvr	United States	Record high maximum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Emporia 1 WNW	United States	Record daily precipitation	67.3 mm (2.6 in)	35 of 100 (Notable)
Park Rapids Muni AP	United States	Record high minimum temperature	8.3 C (46.9 F)	35 of 100 (Notable)
Luverne	United States	Record high minimum temperature	7.8 C (46.0 F)	34 of 100 (Routine)
Bishop AP	United States	Record high minimum temperature	8.3 C (46.9 F)	34 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record high minimum temperature	15.6 C (60.1 F)	33 of 100 (Routine)
Vanceburg	United States	Record high minimum temperature	13.9 C (57.0 F)	33 of 100 (Routine)
Hagerstown	United States	Record high minimum temperature	13.3 C (55.9 F)	33 of 100 (Routine)
Tye Rvr 1 SE	United States	Record daily precipitation	54.9 mm (2.2 in)	33 of 100 (Routine)
Bayard	United States	Record high minimum temperature	11.7 C (53.1 F)	33 of 100 (Routine)
Sao Manuel	Brazil	Record daily precipitation	72.3 mm (2.8 in)	32 of 100 (Routine)
Guayama 1SW	Puerto Rico [United States]	Record low minimum temperature	18.9 C (66.0 F)	32 of 100 (Routine)
Chestertown	United States	Record high minimum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Towson	United States	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Peterboro 2 S	United States	Record high minimum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Quitman 2 NW	United States	Record high minimum temperature	20.0 C (68.0 F)	31 of 100 (Routine)
Martinsburg E W Virginia Rgnl	United States	Record high minimum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Innsbruck	Austria	Record high maximum temperature	22.8 C (73.0 F)	30 of 100 (Routine)
Tucson WFO	United States	Record high minimum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
College Park	United States	Record daily precipitation	47.0 mm (1.9 in)	30 of 100 (Routine)
Pocomoke City	United States	Record high minimum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Columbia 2SSE	United States	Record daily precipitation	38.6 mm (1.5 in)	30 of 100 (Routine)
Nappan Cda	Canada	Record high minimum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Borinquen AP	Puerto Rico [United States]	Record low minimum temperature	19.4 C (66.9 F)	29 of 100 (Routine)
Phoenixville 1 E	United States	Record high minimum temperature	15.0 C (59.0 F)	29 of 100 (Routine)
Goshen	United States	Record daily precipitation	38.1 mm (1.5 in)	29 of 100 (Routine)
Agartala	India	Record daily precipitation	42.9 mm (1.7 in)	28 of 100 (Routine)
Mexquitic	Mexico	Record daily precipitation	32.3 mm (1.3 in)	28 of 100 (Routine)
Ft Collins	United States	Record high minimum temperature	8.3 C (46.9 F)	28 of 100 (Routine)
Hugoton	United States	Record high minimum temperature	11.1 C (52.0 F)	28 of 100 (Routine)
Perry	United States	Record high maximum temperature	30.6 C (87.1 F)	28 of 100 (Routine)
Moorefield 1 SSE	United States	Record daily precipitation	26.7 mm (1.1 in)	28 of 100 (Routine)
Vastervik	Sweden	Record high minimum temperature	10.0 C (50.0 F)	27 of 100 (Routine)
Bar Harbor 3 NW	United States	Record high minimum temperature	11.7 C (53.1 F)	27 of 100 (Routine)
Denton 2 E	United States	Record high minimum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Salisbury	United States	Record high minimum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Scotland Neck	United States	Record daily precipitation	43.9 mm (1.7 in)	27 of 100 (Routine)
Buckingham	United States	Record daily precipitation	42.7 mm (1.7 in)	27 of 100 (Routine)
Fredericksburg Np	United States	Record high minimum temperature	16.7 C (62.1 F)	27 of 100 (Routine)
Warsaw 2 NW	United States	Record high minimum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Paonia 1SW	United States	Record high maximum temperature	23.9 C (75.0 F)	26 of 100 (Routine)
Woodstock	United States	Record high minimum temperature	16.7 C (62.1 F)	26 of 100 (Routine)
New Ulm 2 SE	United States	Record high minimum temperature	10.0 C (50.0 F)	26 of 100 (Routine)

Counts by Type and Timescale

608 records

Records set or tied on 27 October 1977 by type: Highest daily maximum 133, Lowest daily maximum 32, Highest daily minimum 268, Lowest daily minimum 24, Heaviest daily rainfall 150, Deepest snow cover 1.

Records on 27 October 1977 by type
Record type	Records
Highest daily maximum	133
Lowest daily maximum	32
Highest daily minimum	268
Lowest daily minimum	24
Heaviest daily rainfall	150
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 27 October 1977 by timescale: all-time 1, monthly 10, daily 597.

How Much Records Were Beaten By

463 broken records

Margins by which the 463 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.4. Ties are not counted.

Top 20 by Significance

27 October 1977

Top 20 records on 27 October 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 October 1977	Franca, BR	all-time rain	170.0 mm (6.7 in)	52.6 mm (2.1 in)	11 years	64 of 100 (Major)
27 October 1977	Hopewell, US	daily rain	98.3 mm (3.9 in)	71.4 mm (2.8 in)	44 years	59 of 100 (Notable)
27 October 1977	Puerto Madero, MX	daily low min	10.6 C (51.1 F)	7.7 C (13.9 F)	14 years	45 of 100 (Notable)
27 October 1977	Warsaw 2 NW, US	daily rain	36.8 mm (1.4 in)	25.9 mm (1.0 in)	78 years	45 of 100 (Notable)
27 October 1977	Cotswold Hills, AU	daily rain	41.0 mm (1.6 in)	34.6 mm (1.4 in)	36 years	44 of 100 (Notable)
27 October 1977	Melbourne Regional Office, AU	daily high max	33.0 C (91.4 F)	2.0 C (3.6 F)	108 years	44 of 100 (Notable)
27 October 1977	Hobart (Ellerslie Road), AU	daily high max	31.0 C (87.8 F)	4.4 C (7.9 F)	71 years	41 of 100 (Notable)
27 October 1977	Catemaco, MX	daily low min	10.0 C (50.0 F)	5.6 C (10.1 F)	23 years	41 of 100 (Notable)
27 October 1977	Cape St James, CA	daily rain	57.3 mm (2.3 in)	26.1 mm (1.0 in)	14 years	40 of 100 (Notable)
27 October 1977	Nannup, AU	daily rain	26.4 mm (1.0 in)	10.1 mm (0.4 in)	59 years	39 of 100 (Notable)
27 October 1977	Paso de San Antonio, MX	daily rain	34.8 mm (1.4 in)	25.4 mm (1.0 in)	32 years	39 of 100 (Notable)
27 October 1977	Arcola, US	daily rain	79.8 mm (3.1 in)	40.9 mm (1.6 in)	44 years	39 of 100 (Notable)
27 October 1977	Itiuba, BR	daily rain	38.9 mm (1.5 in)	33.9 mm (1.3 in)	30 years	38 of 100 (Notable)
27 October 1977	Vestervig, DK	daily high min	10.9 C (51.6 F)	0.9 C (1.6 F)	88 years	38 of 100 (Notable)
27 October 1977	Niu Ridge 1035, US	monthly low min	11.7 C (53.1 F)	2.2 C (4.0 F)	32 years	38 of 100 (Notable)
27 October 1977	W Liberty 3NW, US	daily high min	13.3 C (55.9 F)	5.0 C (9.0 F)	71 years	37 of 100 (Notable)
27 October 1977	Boras, SE	daily high min	9.6 C (49.3 F)	0.1 C (0.2 F)	88 years	35 of 100 (Notable)
27 October 1977	Sugarloaf Rsvr, US	daily high max	19.4 C (66.9 F)	2.7 C (4.9 F)	76 years	35 of 100 (Notable)
27 October 1977	Emporia 1 WNW, US	daily rain	67.3 mm (2.6 in)	26.7 mm (1.1 in)	20 years	35 of 100 (Notable)
27 October 1977	Park Rapids Muni AP, US	daily high min	8.3 C (46.9 F)	2.2 C (4.0 F)	76 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 1977

Records set or tied on this calendar date in each year from 1802 to 1977. 1977 had 608 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 1977-10-27: 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 10	422
10 to 20	20
20 to 30	14
30 to 40	4
40 to 50	1
50 to 60	1
60 to 70	0
70 to 80	1