Weather Records on 12 October 1977

832 weather records were set or tied worldwide on 12 October 1977. Highest significance: Boyup Brook, AU.

Key Facts for 12 October 1977

On 12 October 1977, 832 weather records were set or tied at long-record stations worldwide.
87 were record highs and 575 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 11 monthly and 821 daily.
Boyup Brook set a daily record precipitation of 33.2 mm (1.3 in) on 12 October 1977.
Across 163 earlier years (1805 to 2026) the same calendar date averaged 450 records.

Record Map

832 stations

832 station records on 12 October 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 October 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Boyup Brook	Australia	Record daily precipitation	33.2 mm (1.3 in)	63 of 100 (Major)
White Gums	Australia	Record daily precipitation	29.6 mm (1.2 in)	58 of 100 (Notable)
Arundel	Australia	Record daily precipitation	31.6 mm (1.2 in)	56 of 100 (Notable)
Chamingup	Australia	Record daily precipitation	27.0 mm (1.1 in)	56 of 100 (Notable)
Westbourne	Australia	Record daily precipitation	32.6 mm (1.3 in)	53 of 100 (Notable)
Roselea	Australia	Record daily precipitation	27.8 mm (1.1 in)	53 of 100 (Notable)
Gunnerside	Australia	Record daily precipitation	29.0 mm (1.1 in)	52 of 100 (Notable)
Kayballup	Australia	Record daily precipitation	29.6 mm (1.2 in)	51 of 100 (Notable)
Lake Pingrup	Australia	Record daily precipitation	25.2 mm (1.0 in)	51 of 100 (Notable)
Cherry Point MCAS	United States	Record daily precipitation	74.9 mm (2.9 in)	51 of 100 (Notable)
Aldervale	Australia	Record daily precipitation	31.8 mm (1.3 in)	50 of 100 (Notable)
Bathurst	Australia	Record daily precipitation	28.4 mm (1.1 in)	48 of 100 (Notable)
Allambie	Australia	Record daily precipitation	31.8 mm (1.3 in)	47 of 100 (Notable)
Man	Cote D'Ivoire	Record daily precipitation	72.5 mm (2.9 in)	46 of 100 (Notable)
Bridgetown Comparison	Australia	Record daily precipitation	28.0 mm (1.1 in)	44 of 100 (Notable)
Wonnenup	Australia	Record daily precipitation	36.7 mm (1.4 in)	44 of 100 (Notable)
Menard	United States	Record low minimum temperature	-2.8 C (27.0 F)	44 of 100 (Notable)
Nhill	Australia	Record high maximum temperature	34.6 C (94.3 F)	42 of 100 (Notable)
Cleveland	United States	Record low maximum temperature	15.0 C (59.0 F)	42 of 100 (Notable)
Glen Mervyn	Australia	Record daily precipitation	30.2 mm (1.2 in)	41 of 100 (Notable)
Low Head (Comparison)	Australia	Record high maximum temperature	20.3 C (68.5 F)	41 of 100 (Notable)
Newbicup	Australia	Record daily precipitation	28.6 mm (1.1 in)	40 of 100 (Notable)
Lencois	Brazil	Record daily precipitation	98.0 mm (3.9 in)	40 of 100 (Notable)
Oak Park	Australia	Record daily precipitation	32.0 mm (1.3 in)	39 of 100 (Notable)
Morgantown Muni AP	United States	Record low maximum temperature	9.4 C (48.9 F)	39 of 100 (Notable)
McAlinden	Australia	Record daily precipitation	26.2 mm (1.0 in)	38 of 100 (Notable)
Lake Grace Comparison	Australia	Record daily precipitation	27.0 mm (1.1 in)	38 of 100 (Notable)
Adelaide West Terrace	Australia	Record high minimum temperature	22.8 C (73.0 F)	38 of 100 (Notable)
Norman Wells A	Canada	Record daily snowfall	10.2 cm (4.0 in)	37 of 100 (Notable)
Ohotsk	Russia	Record low minimum temperature	-16.0 C (3.2 F)	37 of 100 (Notable)
Windsor	United States	Record low maximum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Athens 5 NW	United States	Record low maximum temperature	10.6 C (51.1 F)	37 of 100 (Notable)
Franklin 3 NW	United States	Record low maximum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Sedalia Wtp	United States	Record low maximum temperature	11.1 C (52.0 F)	36 of 100 (Notable)
Walterboro 1 SW	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Charleston Intl AP	United States	Record daily precipitation	53.3 mm (2.1 in)	36 of 100 (Notable)
Balingup	Australia	Record daily precipitation	27.0 mm (1.1 in)	35 of 100 (Notable)
Brookhaven City	United States	Record low maximum temperature	16.1 C (61.0 F)	35 of 100 (Notable)
Ripley	United States	Record low maximum temperature	13.9 C (57.0 F)	35 of 100 (Notable)
Creighton	United States	Record low minimum temperature	-7.2 C (19.0 F)	35 of 100 (Notable)
Jackson Exp STN	United States	Record low maximum temperature	12.2 C (54.0 F)	35 of 100 (Notable)
Grapevine Dam	United States	Record low minimum temperature	3.9 C (39.0 F)	35 of 100 (Notable)
Lampasas	United States	Record low minimum temperature	-1.1 C (30.0 F)	35 of 100 (Notable)
Quanah 2 SW	United States	Record low minimum temperature	-1.7 C (28.9 F)	35 of 100 (Notable)
San Saba	United States	Record low maximum temperature	20.0 C (68.0 F)	35 of 100 (Notable)
Donnybrook	Australia	Record daily precipitation	26.4 mm (1.0 in)	34 of 100 (Routine)
Dartnall	Australia	Record daily precipitation	28.0 mm (1.1 in)	34 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record high maximum temperature	37.6 C (99.7 F)	34 of 100 (Routine)
Abilene	United States	Record low minimum temperature	-3.9 C (25.0 F)	34 of 100 (Routine)
Bastrop	United States	Record low minimum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Mtn View 91	United States	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Gage AP	United States	Record low minimum temperature	-2.8 C (27.0 F)	34 of 100 (Routine)
Culicup Estate	Australia	Record daily precipitation	34.0 mm (1.3 in)	33 of 100 (Routine)
Dinninup	Australia	Record daily precipitation	25.6 mm (1.0 in)	33 of 100 (Routine)
Iawakia	Australia	Record daily precipitation	25.0 mm (1.0 in)	33 of 100 (Routine)
Pardelup	Australia	Record daily precipitation	26.8 mm (1.1 in)	33 of 100 (Routine)
Warriup	Australia	Record daily precipitation	32.4 mm (1.3 in)	33 of 100 (Routine)
Mattoon	United States	Record low maximum temperature	12.2 C (54.0 F)	33 of 100 (Routine)
Monticello	United States	Record low maximum temperature	17.2 C (63.0 F)	33 of 100 (Routine)
Findlay Wpcc	United States	Record low maximum temperature	7.2 C (45.0 F)	33 of 100 (Routine)

Counts by Type and Timescale

832 records

Records set or tied on 12 October 1977 by type: Highest daily maximum 41, Lowest daily maximum 314, Highest daily minimum 46, Lowest daily minimum 261, Heaviest daily rainfall 164, Heaviest daily snowfall 6.

Records on 12 October 1977 by type
Record type	Records
Highest daily maximum	41
Lowest daily maximum	314
Highest daily minimum	46
Lowest daily minimum	261
Heaviest daily rainfall	164
Heaviest daily snowfall	6
Deepest snow cover	0

Records on 12 October 1977 by timescale: all-time 0, monthly 11, daily 821.

How Much Records Were Beaten By

661 broken records

Margins by which the 661 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 74.0. Ties are not counted.

Top 20 by Significance

12 October 1977

Top 20 records on 12 October 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 October 1977	Boyup Brook, AU	daily rain	33.2 mm (1.3 in)	25.6 mm (1.0 in)	58 years	63 of 100 (Major)
12 October 1977	White Gums, AU	daily rain	29.6 mm (1.2 in)	22.0 mm (0.9 in)	52 years	58 of 100 (Notable)
12 October 1977	Arundel, AU	daily rain	31.6 mm (1.2 in)	21.4 mm (0.8 in)	43 years	56 of 100 (Notable)
12 October 1977	Chamingup, AU	daily rain	27.0 mm (1.1 in)	19.6 mm (0.8 in)	43 years	56 of 100 (Notable)
12 October 1977	Westbourne, AU	daily rain	32.6 mm (1.3 in)	21.2 mm (0.8 in)	24 years	53 of 100 (Notable)
12 October 1977	Roselea, AU	daily rain	27.8 mm (1.1 in)	18.7 mm (0.7 in)	24 years	53 of 100 (Notable)
12 October 1977	Gunnerside, AU	daily rain	29.0 mm (1.1 in)	21.6 mm (0.9 in)	24 years	52 of 100 (Notable)
12 October 1977	Kayballup, AU	daily rain	29.6 mm (1.2 in)	15.6 mm (0.6 in)	60 years	51 of 100 (Notable)
12 October 1977	Lake Pingrup, AU	daily rain	25.2 mm (1.0 in)	17.3 mm (0.7 in)	24 years	51 of 100 (Notable)
12 October 1977	Cherry Point MCAS, US	daily rain	74.9 mm (2.9 in)	73.6 mm (2.9 in)	28 years	51 of 100 (Notable)
12 October 1977	Aldervale, AU	daily rain	31.8 mm (1.3 in)	14.0 mm (0.6 in)	62 years	50 of 100 (Notable)
12 October 1977	Bathurst, AU	daily rain	28.4 mm (1.1 in)	18.0 mm (0.7 in)	24 years	48 of 100 (Notable)
12 October 1977	Allambie, AU	daily rain	31.8 mm (1.3 in)	16.8 mm (0.7 in)	48 years	47 of 100 (Notable)
12 October 1977	Man, CI	daily rain	72.5 mm (2.9 in)	51.1 mm (2.0 in)	23 years	46 of 100 (Notable)
12 October 1977	Bridgetown Comparison, AU	daily rain	28.0 mm (1.1 in)	9.5 mm (0.37 in)	66 years	44 of 100 (Notable)
12 October 1977	Wonnenup, AU	daily rain	36.7 mm (1.4 in)	23.5 mm (0.9 in)	12 years	44 of 100 (Notable)
12 October 1977	Menard, US	daily low min	-2.8 C (27.0 F)	7.2 C (13.0 F)	76 years	44 of 100 (Notable)
12 October 1977	Nhill, AU	daily high max	34.6 C (94.3 F)	5.7 C (10.3 F)	76 years	42 of 100 (Notable)
12 October 1977	Cleveland, US	daily low max	15.0 C (59.0 F)	6.7 C (12.1 F)	76 years	42 of 100 (Notable)
12 October 1977	Glen Mervyn, AU	daily rain	30.2 mm (1.2 in)	21.6 mm (0.9 in)	52 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

1805 to 1977

Records set or tied on this calendar date in each year from 1805 to 1977. 1977 had 832 records.

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

Records on 10-12 in each year
Year	Records
1805	2
1809	1
1810	1
1814	3
1822	1
1839	1
1841	1
1843	1
1850	1
1852	1
1854	1
1859	1
1860	2
1861	1
1867	1
1871	3
1873	2
1875	2
1876	5
1879	2
1881	2
1884	1
1885	2
1886	1
1887	2
1888	1
1889	1
1890	3
1891	1
1892	1
1893	2
1894	2
1895	2
1896	3
1897	3
1898	2
1899	3
1900	2
1901	6
1902	14
1903	16
1904	30
1905	13
1906	16
1907	10
1908	13
1909	30
1910	13
1911	10
1912	30
1913	33
1914	17
1915	34
1916	29
1917	53
1918	29
1919	53
1920	79
1921	102
1922	21
1923	200
1924	129
1925	107
1926	201
1927	195
1928	714
1929	165
1930	606
1931	283
1932	398
1933	155
1934	477
1935	209
1936	301
1937	185
1938	470
1939	198
1940	235
1941	226
1942	540
1943	418
1944	274
1945	321
1946	554
1947	358
1948	311
1949	725
1950	594
1951	391
1952	352
1953	252
1954	911
1955	383
1956	899
1957	473
1958	448
1959	501
1960	449
1961	436
1962	971
1963	459
1964	636
1965	157
1966	423
1967	623
1968	443
1969	1,828
1970	763
1971	382
1972	412
1973	673
1974	369
1975	830
1976	582
1977	832
1978	525
1979	898
1980	741
1981	1,201
1982	777
1983	992
1984	636
1985	872
1986	1,510
1987	1,530
1988	1,015
1989	543
1990	1,325
1991	948
1992	865
1993	1,145
1994	934
1995	1,238
1996	816
1997	1,851
1998	741
1999	641
2000	1,095
2001	1,194
2002	1,139
2003	1,043
2004	750
2005	872
2006	1,357
2007	566
2008	1,669
2009	2,300
2010	797
2011	906
2012	921
2013	558
2014	514
2015	964
2016	374
2017	1,068
2018	1,195
2019	1,321
2020	655
2021	1,294
2022	439
2023	904
2024	958
2025	624
2026	768

Download the Data

Data for records on 1977-10-12: 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	611
10 to 20	35
20 to 30	11
30 to 40	0
40 to 50	1
50 to 60	1
60 to 70	0
70 to 80	2