Weather Records on 7 October 1977

808 weather records were set or tied worldwide on 7 October 1977. Highest significance: Laranjeiras, BR.

Key Facts for 7 October 1977

On 7 October 1977, 808 weather records were set or tied at long-record stations worldwide.
275 were record highs and 148 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 29 monthly and 777 daily.
Laranjeiras set a daily record precipitation of 99.5 mm (3.9 in) on 7 October 1977.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 458 records.

Record Map

808 stations

808 station records on 7 October 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 7 October 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Laranjeiras	Brazil	Record daily precipitation	99.5 mm (3.9 in)	56 of 100 (Notable)
Apache Powder Company	United States	Record daily precipitation	37.8 mm (1.5 in)	56 of 100 (Notable)
Patagonia #2	United States	Record daily precipitation	58.4 mm (2.3 in)	50 of 100 (Notable)
San Carlos Rsvr	United States	Record daily precipitation	62.2 mm (2.4 in)	50 of 100 (Notable)
Tombstone	United States	Record daily precipitation	38.6 mm (1.5 in)	50 of 100 (Notable)
Tucson Magnetic Obsy	United States	Record daily precipitation	30.7 mm (1.2 in)	49 of 100 (Notable)
Norwood	United States	Record daily precipitation	36.3 mm (1.4 in)	48 of 100 (Notable)
Paragonah	United States	Record daily precipitation	26.9 mm (1.1 in)	47 of 100 (Notable)
Fargo Hector Intl AP	United States	Record daily precipitation	38.6 mm (1.5 in)	47 of 100 (Notable)
Grand Forks Intl AP	United States	Record daily precipitation	29.0 mm (1.1 in)	47 of 100 (Notable)
Hlobane	South Africa	Record daily precipitation	88.0 mm (3.5 in)	46 of 100 (Notable)
Carrollton	United States	Record daily precipitation	56.1 mm (2.2 in)	45 of 100 (Notable)
Ekalaka	United States	Record daily precipitation	27.9 mm (1.1 in)	45 of 100 (Notable)
Hebron	United States	Record daily precipitation	32.0 mm (1.3 in)	44 of 100 (Notable)
Alamogordo	United States	Record daily precipitation	25.9 mm (1.0 in)	44 of 100 (Notable)
Manati 2 E	Puerto Rico [United States]	Record daily precipitation	80.0 mm (3.1 in)	43 of 100 (Notable)
Santiago de Compostela/Labacol	Spain	Record daily precipitation	64.6 mm (2.5 in)	43 of 100 (Notable)
Camp Crook	United States	Record daily precipitation	29.5 mm (1.2 in)	43 of 100 (Notable)
Lake City	United States	Record daily precipitation	25.4 mm (1.0 in)	42 of 100 (Notable)
New London	United States	Record daily precipitation	33.3 mm (1.3 in)	42 of 100 (Notable)
Leipzig-Holzhausen	Germany	Record high maximum temperature	24.4 C (75.9 F)	41 of 100 (Notable)
Sarna	Sweden	Record snow depth	18.0 cm (7.1 in)	41 of 100 (Notable)
Pipestone	United States	Record daily precipitation	36.8 mm (1.4 in)	41 of 100 (Notable)
Onor	Russia	Record daily precipitation	44.0 mm (1.7 in)	40 of 100 (Notable)
St Joseph	United States	Record daily precipitation	46.0 mm (1.8 in)	40 of 100 (Notable)
New Salem 5NW	United States	Record daily precipitation	47.0 mm (1.9 in)	40 of 100 (Notable)
Sao Goncalo	Brazil	Record daily precipitation	52.4 mm (2.1 in)	39 of 100 (Notable)
Redig 11 NE	United States	Record daily precipitation	29.5 mm (1.2 in)	39 of 100 (Notable)
Arhangelsk	Russia	Record low minimum temperature	-9.4 C (15.1 F)	38 of 100 (Notable)
Ada	United States	Record daily precipitation	26.4 mm (1.0 in)	38 of 100 (Notable)
Western 2W	United States	Record daily precipitation	39.4 mm (1.6 in)	38 of 100 (Notable)
Wishek	United States	Record daily snowfall	5.1 cm (2.0 in)	38 of 100 (Notable)
Catemaco	Mexico	Record low minimum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
New Florence	United States	Record daily precipitation	47.8 mm (1.9 in)	37 of 100 (Notable)
Chemnitz	Germany	Record high minimum temperature	13.3 C (55.9 F)	36 of 100 (Notable)
Ascencion (Smn)	Mexico	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Lugano	Switzerland	Record daily precipitation	90.6 mm (3.6 in)	36 of 100 (Notable)
Chiricahua Nm	United States	Record daily precipitation	30.7 mm (1.2 in)	36 of 100 (Notable)
Rico	United States	Record daily precipitation	38.9 mm (1.5 in)	36 of 100 (Notable)
Montevideo 1SW	United States	Record daily precipitation	41.4 mm (1.6 in)	36 of 100 (Notable)
Wheaton	United States	Record daily precipitation	37.6 mm (1.5 in)	36 of 100 (Notable)
De Smet	United States	Record daily precipitation	27.9 mm (1.1 in)	36 of 100 (Notable)
Beaver Canyon Pwr House	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Telluride 4WNW	United States	Record daily precipitation	31.8 mm (1.3 in)	35 of 100 (Notable)
Sweet Springs	United States	Record daily precipitation	49.8 mm (2.0 in)	35 of 100 (Notable)
Oakes	United States	Record daily precipitation	33.5 mm (1.3 in)	35 of 100 (Notable)
Leola	United States	Record daily precipitation	32.0 mm (1.3 in)	35 of 100 (Notable)
Buenos Aires Observ	Argentina	Record high maximum temperature	31.5 C (88.7 F)	34 of 100 (Routine)
Myskelasen_D	Sweden	Record snow depth	14.0 cm (5.5 in)	34 of 100 (Routine)
Harlan	United States	Record daily precipitation	36.3 mm (1.4 in)	34 of 100 (Routine)
Moberly	United States	Record daily precipitation	49.8 mm (2.0 in)	34 of 100 (Routine)
Center 4SE	United States	Record daily snowfall	10.2 cm (4.0 in)	34 of 100 (Routine)
Colgate	United States	Record daily snowfall	5.1 cm (2.0 in)	34 of 100 (Routine)
Atil	Mexico	Record daily precipitation	66.8 mm (2.6 in)	33 of 100 (Routine)
Y Lightning Rch	United States	Record daily precipitation	48.3 mm (1.9 in)	33 of 100 (Routine)
Ottawa	United States	Record daily precipitation	41.4 mm (1.6 in)	33 of 100 (Routine)
Crete 4ESE	United States	Record daily precipitation	30.7 mm (1.2 in)	33 of 100 (Routine)
Barra Do Cuiete-Jusante	Brazil	Record daily precipitation	56.4 mm (2.2 in)	32 of 100 (Routine)
Pearce - Sunsites	United States	Record low maximum temperature	21.7 C (71.1 F)	32 of 100 (Routine)
Aurora	United States	Record daily precipitation	26.4 mm (1.0 in)	32 of 100 (Routine)

Counts by Type and Timescale

808 records

Records set or tied on 7 October 1977 by type: Highest daily maximum 123, Lowest daily maximum 97, Highest daily minimum 152, Lowest daily minimum 51, Heaviest daily rainfall 369, Heaviest daily snowfall 10, Deepest snow cover 6.

Records on 7 October 1977 by type
Record type	Records
Highest daily maximum	123
Lowest daily maximum	97
Highest daily minimum	152
Lowest daily minimum	51
Heaviest daily rainfall	369
Heaviest daily snowfall	10
Deepest snow cover	6

Records on 7 October 1977 by timescale: all-time 2, monthly 29, daily 777.

How Much Records Were Beaten By

707 broken records

Margins by which the 707 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 140.0. Ties are not counted.

Top 20 by Significance

7 October 1977

Top 20 records on 7 October 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 October 1977	Laranjeiras, BR	daily rain	99.5 mm (3.9 in)	54.5 mm (2.1 in)	38 years	56 of 100 (Notable)
7 October 1977	Apache Powder Company, US	daily rain	37.8 mm (1.5 in)	29.4 mm (1.2 in)	38 years	56 of 100 (Notable)
7 October 1977	Patagonia #2, US	daily rain	58.4 mm (2.3 in)	32.2 mm (1.3 in)	38 years	50 of 100 (Notable)
7 October 1977	San Carlos Rsvr, US	monthly rain	62.2 mm (2.4 in)	11.9 mm (0.5 in)	69 years	50 of 100 (Notable)
7 October 1977	Tombstone, US	daily rain	38.6 mm (1.5 in)	24.4 mm (1.0 in)	38 years	50 of 100 (Notable)
7 October 1977	Tucson Magnetic Obsy, US	daily rain	30.7 mm (1.2 in)	19.0 mm (0.7 in)	60 years	49 of 100 (Notable)
7 October 1977	Norwood, US	daily rain	36.3 mm (1.4 in)	22.1 mm (0.9 in)	52 years	48 of 100 (Notable)
7 October 1977	Paragonah, US	daily rain	26.9 mm (1.1 in)	17.0 mm (0.7 in)	52 years	47 of 100 (Notable)
7 October 1977	Fargo Hector Intl AP, US	daily rain	38.6 mm (1.5 in)	23.6 mm (0.9 in)	15 years	47 of 100 (Notable)
7 October 1977	Grand Forks Intl AP, US	daily rain	29.0 mm (1.1 in)	21.1 mm (0.8 in)	36 years	47 of 100 (Notable)
7 October 1977	Hlobane, ZA	monthly rain	88.0 mm (3.5 in)	14.3 mm (0.6 in)	58 years	46 of 100 (Notable)
7 October 1977	Carrollton, US	daily rain	56.1 mm (2.2 in)	23.6 mm (0.9 in)	74 years	45 of 100 (Notable)
7 October 1977	Ekalaka, US	daily rain	27.9 mm (1.1 in)	10.9 mm (0.4 in)	64 years	45 of 100 (Notable)
7 October 1977	Hebron, US	daily rain	32.0 mm (1.3 in)	20.6 mm (0.8 in)	68 years	44 of 100 (Notable)
7 October 1977	Alamogordo, US	daily rain	25.9 mm (1.0 in)	14.2 mm (0.6 in)	64 years	44 of 100 (Notable)
7 October 1977	Manati 2 E, PR	daily rain	80.0 mm (3.1 in)	23.9 mm (0.9 in)	64 years	43 of 100 (Notable)
7 October 1977	Santiago de Compostela/Labacol, ES	daily rain	64.6 mm (2.5 in)	47.6 mm (1.9 in)	28 years	43 of 100 (Notable)
7 October 1977	Camp Crook, US	daily rain	29.5 mm (1.2 in)	19.3 mm (0.8 in)	20 years	43 of 100 (Notable)
7 October 1977	Lake City, US	daily rain	25.4 mm (1.0 in)	10.4 mm (0.4 in)	70 years	42 of 100 (Notable)
7 October 1977	New London, US	daily rain	33.3 mm (1.3 in)	10.4 mm (0.4 in)	80 years	42 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 808 records.

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

Records on 10-07 in each year
Year	Records
1802	1
1811	1
1824	1
1839	1
1843	1
1852	2
1853	1
1854	1
1858	1
1861	1
1863	2
1864	4
1865	1
1867	2
1868	1
1869	1
1872	2
1873	4
1875	1
1876	2
1877	1
1878	1
1880	1
1881	1
1882	1
1884	1
1886	1
1887	1
1888	2
1889	3
1890	4
1891	2
1892	2
1893	5
1895	2
1896	2
1897	6
1898	7
1899	6
1900	6
1901	14
1902	3
1903	11
1904	27
1905	9
1906	5
1907	10
1908	14
1909	14
1910	18
1911	24
1912	36
1913	32
1914	20
1915	22
1916	35
1917	47
1918	121
1919	28
1920	106
1921	68
1922	43
1923	117
1924	86
1925	247
1926	157
1927	173
1928	120
1929	121
1930	517
1931	603
1932	476
1933	166
1934	237
1935	918
1936	436
1937	359
1938	471
1939	769
1940	159
1941	892
1942	184
1943	424
1944	265
1945	257
1946	1,128
1947	557
1948	333
1949	576
1950	363
1951	604
1952	1,470
1953	524
1954	465
1955	629
1956	548
1957	567
1958	598
1959	770
1960	413
1961	721
1962	449
1963	453
1964	961
1965	584
1966	398
1967	432
1968	764
1969	365
1970	1,148
1971	629
1972	537
1973	461
1974	773
1975	760
1976	1,087
1977	808
1978	406
1979	774
1980	1,253
1981	737
1982	1,079
1983	555
1984	717
1985	1,089
1986	519
1987	834
1988	753
1989	389
1990	948
1991	1,189
1992	872
1993	918
1994	1,144
1995	658
1996	1,073
1997	1,903
1998	1,331
1999	895
2000	2,427
2001	823
2002	704
2003	1,364
2004	518
2005	1,476
2006	1,004
2007	2,285
2008	621
2009	1,926
2010	994
2011	1,216
2012	1,350
2013	675
2014	569
2015	439
2016	537
2017	581
2018	1,063
2019	569
2020	1,175
2021	586
2022	557
2023	705
2024	849
2025	525
2026	917

Download the Data

Data for records on 1977-10-07: 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	652
20 to 40	44
40 to 60	8
60 to 80	0
80 to 100	0
100 to 120	1
120 to 140	2