Weather Records on 4 October 1970

539 weather records were set or tied worldwide on 4 October 1970. Highest significance: Squa Pan Dam, US.

Key Facts for 4 October 1970

On 4 October 1970, 539 weather records were set or tied at long-record stations worldwide.
115 were record highs and 115 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 18 monthly and 521 daily.
Squa Pan Dam set a monthly record daily precipitation of 104.1 mm (4.1 in) on 4 October 1970.
Across 160 earlier years (1795 to 2026) the same calendar date averaged 464 records.

Record Map

539 stations

539 station records on 4 October 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 October 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Squa Pan Dam	United States	Record daily precipitation	104.1 mm (4.1 in)	63 of 100 (Major)
Sydney (Observatory Hill)	Australia	Record high minimum temperature	25.6 C (78.1 F)	59 of 100 (Notable)
Poltava	Ukraine	Record daily precipitation	27.7 mm (1.1 in)	59 of 100 (Notable)
Polur	India	Record daily precipitation	122.5 mm (4.8 in)	54 of 100 (Notable)
Lagoa Dos Cochos	Brazil	Record daily precipitation	63.4 mm (2.5 in)	52 of 100 (Notable)
Porciuncula	Brazil	Record daily precipitation	71.0 mm (2.8 in)	51 of 100 (Notable)
Castelo	Brazil	Record daily precipitation	56.0 mm (2.2 in)	50 of 100 (Notable)
Ripogenus Dam	United States	Record daily precipitation	95.3 mm (3.8 in)	45 of 100 (Notable)
Wannamal	Australia	Record daily precipitation	25.7 mm (1.0 in)	43 of 100 (Notable)
Wien	Austria	Record daily precipitation	29.6 mm (1.2 in)	42 of 100 (Notable)
Guacui	Brazil	Record daily precipitation	89.1 mm (3.5 in)	42 of 100 (Notable)
Sasvad	India	Record daily precipitation	78.7 mm (3.1 in)	42 of 100 (Notable)
Peraiyur	India	Record daily precipitation	100.0 mm (3.9 in)	41 of 100 (Notable)
Narrogin	Australia	Record daily precipitation	32.0 mm (1.3 in)	40 of 100 (Notable)
Rushy Pool	Australia	Record daily precipitation	27.4 mm (1.1 in)	39 of 100 (Notable)
Kanakapura	India	Record daily precipitation	89.4 mm (3.5 in)	39 of 100 (Notable)
Shepetivka	Ukraine	Record daily precipitation	29.2 mm (1.1 in)	39 of 100 (Notable)
Melbourne Regional Office	Australia	Record high maximum temperature	28.6 C (83.5 F)	38 of 100 (Notable)
Cape Otway Lighthouse	Australia	Record high maximum temperature	26.9 C (80.4 F)	37 of 100 (Notable)
Kentville Cda	Canada	Record daily precipitation	71.4 mm (2.8 in)	37 of 100 (Notable)
Sarita 7 E	United States	Record daily precipitation	72.4 mm (2.9 in)	37 of 100 (Notable)
Charlottetown Cda	Canada	Record daily precipitation	58.2 mm (2.3 in)	36 of 100 (Notable)
Khed	India	Record daily precipitation	60.0 mm (2.4 in)	36 of 100 (Notable)
Bannister	Australia	Record daily precipitation	27.7 mm (1.1 in)	35 of 100 (Notable)
Casa Grande (Dae) E2-053	Brazil	Record daily precipitation	54.2 mm (2.1 in)	35 of 100 (Notable)
Ramnagaram	India	Record daily precipitation	100.3 mm (3.9 in)	35 of 100 (Notable)
Kayatnur	India	Record daily precipitation	56.8 mm (2.2 in)	35 of 100 (Notable)
Barur	India	Record daily precipitation	91.0 mm (3.6 in)	33 of 100 (Routine)
Manapparai	India	Record daily precipitation	78.6 mm (3.1 in)	33 of 100 (Routine)
Sagar Island	India	Record daily precipitation	147.4 mm (5.8 in)	32 of 100 (Routine)
Wungong Dam	Australia	Record daily precipitation	53.8 mm (2.1 in)	31 of 100 (Routine)
Mansidao	Brazil	Record daily precipitation	30.3 mm (1.2 in)	31 of 100 (Routine)
Mysore	India	Record daily precipitation	59.6 mm (2.3 in)	31 of 100 (Routine)
Canning River Weir	Australia	Record daily precipitation	57.9 mm (2.3 in)	30 of 100 (Routine)
Bjelasnica	Bosnia and Herzegovina	Record low maximum temperature	-2.2 C (28.0 F)	30 of 100 (Routine)
Lisboa Geofisica	Portugal	Record high minimum temperature	20.9 C (69.6 F)	30 of 100 (Routine)
Clifton	United States	Record low maximum temperature	21.1 C (70.0 F)	30 of 100 (Routine)
Nhill	Australia	Record high maximum temperature	32.8 C (91.0 F)	29 of 100 (Routine)
Coribe (Rio Alegre)	Brazil	Record daily precipitation	46.9 mm (1.8 in)	29 of 100 (Routine)
Panruti	India	Record daily precipitation	128.0 mm (5.0 in)	29 of 100 (Routine)
Murfreesboro 5 N	United States	Record low minimum temperature	2.2 C (36.0 F)	29 of 100 (Routine)
Trafalgar	Canada	Record daily precipitation	40.1 mm (1.6 in)	28 of 100 (Routine)
Hanty-Mansijsk	Russia	Record low minimum temperature	-9.3 C (15.3 F)	28 of 100 (Routine)
Elberton 2 N	United States	Record low minimum temperature	2.8 C (37.0 F)	28 of 100 (Routine)
Wagga Wagga Agricultural Insti	Australia	Record high minimum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Nappan Cda	Canada	Record daily precipitation	46.5 mm (1.8 in)	27 of 100 (Routine)
Moosehead	United States	Record daily precipitation	66.5 mm (2.6 in)	27 of 100 (Routine)
Prineville	United States	Record high maximum temperature	32.2 C (90.0 F)	27 of 100 (Routine)
Manley Hot Springs	United States	Record low minimum temperature	-18.9 C (-2.0 F)	27 of 100 (Routine)
Snowtown	Australia	Record high maximum temperature	33.9 C (93.0 F)	26 of 100 (Routine)
Adelaide West Terrace	Australia	Record high maximum temperature	32.7 C (90.9 F)	26 of 100 (Routine)
Bjelasnica	Bosnia and Herzegovina	Record low minimum temperature	-5.0 C (23.0 F)	26 of 100 (Routine)
Cachoeiro Itapemiri	Brazil	Record daily precipitation	26.8 mm (1.1 in)	26 of 100 (Routine)
Salmon Hole	Canada	Record daily precipitation	48.0 mm (1.9 in)	26 of 100 (Routine)
Upper Stewiacke	Canada	Record daily precipitation	31.8 mm (1.3 in)	26 of 100 (Routine)
Hatch	United States	Record daily precipitation	26.7 mm (1.1 in)	26 of 100 (Routine)
Baddeck	Canada	Record daily precipitation	36.3 mm (1.4 in)	25 of 100 (Routine)
Malavalli	India	Record daily precipitation	73.7 mm (2.9 in)	25 of 100 (Routine)
Kulithalai	India	Record daily precipitation	57.6 mm (2.3 in)	25 of 100 (Routine)
Sredny Vasjugan	Russia	Record low minimum temperature	-10.3 C (13.5 F)	25 of 100 (Routine)

Counts by Type and Timescale

539 records

Records set or tied on 4 October 1970 by type: Highest daily maximum 74, Lowest daily maximum 45, Highest daily minimum 41, Lowest daily minimum 70, Heaviest daily rainfall 306, Heaviest daily snowfall 3.

Records on 4 October 1970 by type
Record type	Records
Highest daily maximum	74
Lowest daily maximum	45
Highest daily minimum	41
Lowest daily minimum	70
Heaviest daily rainfall	306
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 4 October 1970 by timescale: all-time 0, monthly 18, daily 521.

How Much Records Were Beaten By

453 broken records

Margins by which the 453 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 65.1. Ties are not counted.

Top 20 by Significance

4 October 1970

Top 20 records on 4 October 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 October 1970	Squa Pan Dam, US	monthly rain	104.1 mm (4.1 in)	58.4 mm (2.3 in)	32 years	63 of 100 (Major)
4 October 1970	Sydney (Observatory Hill), AU	monthly high min	25.6 C (78.1 F)	2.4 C (4.3 F)	110 years	59 of 100 (Notable)
4 October 1970	Poltava, UA	daily rain	27.7 mm (1.1 in)	22.9 mm (0.9 in)	44 years	59 of 100 (Notable)
4 October 1970	Polur, IN	daily rain	122.5 mm (4.8 in)	65.1 mm (2.6 in)	53 years	54 of 100 (Notable)
4 October 1970	Lagoa Dos Cochos, BR	daily rain	63.4 mm (2.5 in)	63.4 mm (2.5 in)	31 years	52 of 100 (Notable)
4 October 1970	Porciuncula, BR	daily rain	71.0 mm (2.8 in)	59.8 mm (2.4 in)	28 years	51 of 100 (Notable)
4 October 1970	Castelo, BR	daily rain	56.0 mm (2.2 in)	45.7 mm (1.8 in)	24 years	50 of 100 (Notable)
4 October 1970	Ripogenus Dam, US	monthly rain	95.3 mm (3.8 in)	21.1 mm (0.8 in)	38 years	45 of 100 (Notable)
4 October 1970	Wannamal, AU	daily rain	25.7 mm (1.0 in)	13.0 mm (0.5 in)	47 years	43 of 100 (Notable)
4 October 1970	Wien, AT	daily rain	29.6 mm (1.2 in)	14.7 mm (0.6 in)	52 years	42 of 100 (Notable)
4 October 1970	Guacui, BR	monthly rain	89.1 mm (3.5 in)	27.0 mm (1.1 in)	19 years	42 of 100 (Notable)
4 October 1970	Sasvad, IN	daily rain	78.7 mm (3.1 in)	45.2 mm (1.8 in)	32 years	42 of 100 (Notable)
4 October 1970	Peraiyur, IN	daily rain	100.0 mm (3.9 in)	31.4 mm (1.2 in)	64 years	41 of 100 (Notable)
4 October 1970	Narrogin, AU	daily rain	32.0 mm (1.3 in)	12.2 mm (0.5 in)	31 years	40 of 100 (Notable)
4 October 1970	Rushy Pool, AU	daily rain	27.4 mm (1.1 in)	11.7 mm (0.5 in)	31 years	39 of 100 (Notable)
4 October 1970	Kanakapura, IN	daily rain	89.4 mm (3.5 in)	34.5 mm (1.4 in)	40 years	39 of 100 (Notable)
4 October 1970	Shepetivka, UA	daily rain	29.2 mm (1.1 in)	16.1 mm (0.6 in)	25 years	39 of 100 (Notable)
4 October 1970	Melbourne Regional Office, AU	daily high max	28.6 C (83.5 F)	0.1 C (0.2 F)	93 years	38 of 100 (Notable)
4 October 1970	Cape Otway Lighthouse, AU	daily high max	26.9 C (80.4 F)	0.2 C (0.4 F)	91 years	37 of 100 (Notable)
4 October 1970	Kentville Cda, CA	daily rain	71.4 mm (2.8 in)	39.1 mm (1.5 in)	1 year	37 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

1795 to 1970

Records set or tied on this calendar date in each year from 1795 to 1970. 1970 had 539 records.

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

Records on 10-04 in each year
Year	Records
1795	1
1802	1
1841	2
1843	1
1844	2
1847	2
1853	1
1859	1
1864	8
1865	2
1867	1
1868	1
1873	1
1875	1
1876	1
1878	1
1880	1
1881	3
1882	1
1883	3
1884	4
1885	2
1886	3
1888	5
1889	2
1890	1
1891	3
1892	2
1893	2
1894	3
1895	3
1896	3
1898	4
1899	1
1900	3
1901	9
1902	5
1903	8
1904	5
1905	11
1906	29
1907	10
1908	18
1909	13
1910	21
1911	23
1912	101
1913	12
1914	18
1915	13
1916	137
1917	157
1918	127
1919	30
1920	31
1921	46
1922	44
1923	21
1924	63
1925	130
1926	255
1927	172
1928	131
1929	339
1930	244
1931	361
1932	413
1933	299
1934	121
1935	833
1936	161
1937	483
1938	440
1939	345
1940	220
1941	850
1942	198
1943	426
1944	328
1945	543
1946	314
1947	592
1948	449
1949	491
1950	565
1951	617
1952	717
1953	358
1954	999
1955	630
1956	467
1957	533
1958	704
1959	812
1960	246
1961	758
1962	313
1963	528
1964	389
1965	760
1966	464
1967	440
1968	587
1969	628
1970	539
1971	361
1972	712
1973	604
1974	1,846
1975	681
1976	869
1977	517
1978	488
1979	733
1980	975
1981	994
1982	415
1983	762
1984	864
1985	863
1986	1,265
1987	1,502
1988	713
1989	742
1990	845
1991	813
1992	866
1993	956
1994	1,341
1995	1,192
1996	1,012
1997	928
1998	1,487
1999	1,596
2000	917
2001	547
2002	1,465
2003	610
2004	562
2005	1,973
2006	987
2007	997
2008	935
2009	1,431
2010	1,230
2011	919
2012	864
2013	1,130
2014	611
2015	741
2016	680
2017	780
2018	979
2019	1,131
2020	897
2021	644
2022	561
2023	936
2024	1,197
2025	979
2026	942

Download the Data

Data for records on 1970-10-04: 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	377
10 to 20	46
20 to 30	13
30 to 40	9
40 to 50	3
50 to 60	3
60 to 70	2