Weather Records on 30 July 1970

431 weather records were set or tied worldwide on 30 July 1970. Highest significance: Tiskilwa 2 SE, US.

Key Facts for 30 July 1970

On 30 July 1970, 431 weather records were set or tied at long-record stations worldwide.
166 were record highs and 79 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 6 monthly and 424 daily.
Tiskilwa 2 SE set a daily record precipitation of 95.3 mm (3.8 in) on 30 July 1970.
Across 168 earlier years (1794 to 2026) the same calendar date averaged 440 records.

Record Map

431 stations

431 station records on 30 July 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 July 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tiskilwa 2 SE	United States	Record daily precipitation	95.3 mm (3.8 in)	57 of 100 (Notable)
W Branch 3SE	United States	Record daily precipitation	56.4 mm (2.2 in)	54 of 100 (Notable)
Pontiac	United States	Record daily precipitation	88.6 mm (3.5 in)	53 of 100 (Notable)
Streator 2SE	United States	Record daily precipitation	71.1 mm (2.8 in)	53 of 100 (Notable)
Moorestown 4 E	United States	Record daily precipitation	100.3 mm (3.9 in)	50 of 100 (Notable)
Danville	United States	Record daily precipitation	46.5 mm (1.8 in)	49 of 100 (Notable)
Kunzelsau	Germany	Record daily precipitation	66.0 mm (2.6 in)	46 of 100 (Notable)
Frankfort Disposal	United States	Record daily precipitation	67.6 mm (2.7 in)	44 of 100 (Notable)
Kamensk-Uralskij	Russia	Record daily precipitation	49.0 mm (1.9 in)	43 of 100 (Notable)
Dixon Wwtp	United States	Record daily precipitation	75.9 mm (3.0 in)	43 of 100 (Notable)
Hoopeston	United States	Record daily precipitation	61.5 mm (2.4 in)	43 of 100 (Notable)
Kentland	United States	Record daily precipitation	77.0 mm (3.0 in)	43 of 100 (Notable)
Hyannis	United States	Record high minimum temperature	25.6 C (78.1 F)	42 of 100 (Notable)
Berhampore	India	Record daily precipitation	147.4 mm (5.8 in)	41 of 100 (Notable)
W Lafayette 6 NW	United States	Record daily precipitation	47.8 mm (1.9 in)	41 of 100 (Notable)
Harpers Ferry River	United States	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Tittagudi	India	Record daily precipitation	74.9 mm (2.9 in)	40 of 100 (Notable)
Morris 1NW	United States	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Salamonia	United States	Record daily precipitation	78.0 mm (3.1 in)	40 of 100 (Notable)
Woodstock	Canada	Record high minimum temperature	22.2 C (72.0 F)	39 of 100 (Notable)
Timovskoe	Russia	Record daily precipitation	25.3 mm (1.0 in)	39 of 100 (Notable)
Ottawa 4SW	United States	Record daily precipitation	51.3 mm (2.0 in)	39 of 100 (Notable)
Fowler	United States	Record daily precipitation	77.0 mm (3.0 in)	39 of 100 (Notable)
Valparaiso Wtr Wks	United States	Record daily precipitation	47.2 mm (1.9 in)	39 of 100 (Notable)
Mansfield 5 W	United States	Record daily precipitation	53.6 mm (2.1 in)	39 of 100 (Notable)
Green Bay	United States	Record daily precipitation	42.7 mm (1.7 in)	38 of 100 (Notable)
Crawfordsville Pwr Plt	United States	Record daily precipitation	39.9 mm (1.6 in)	37 of 100 (Notable)
Jacobina	Brazil	Record daily precipitation	50.4 mm (2.0 in)	36 of 100 (Notable)
Leusi	Russia	Record daily precipitation	62.3 mm (2.5 in)	36 of 100 (Notable)
Mtunzini	South Africa	Record daily precipitation	55.0 mm (2.2 in)	36 of 100 (Notable)
Dannemora	United States	Record daily precipitation	42.9 mm (1.7 in)	36 of 100 (Notable)
Alexandria 4 WSW	United States	Record daily precipitation	25.9 mm (1.0 in)	36 of 100 (Notable)
Fremont	United States	Record daily precipitation	73.4 mm (2.9 in)	36 of 100 (Notable)
Manchester	United States	Record high maximum temperature	35.0 C (95.0 F)	35 of 100 (Notable)
Lucinda Township	Australia	Record daily precipitation	31.8 mm (1.3 in)	34 of 100 (Routine)
Anadarko 3 E	United States	Record high minimum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Nerchinskij Zavod	Russia	Record low minimum temperature	4.7 C (40.5 F)	32 of 100 (Routine)
Verhnij_Baskuncak	Russia	Record daily precipitation	25.6 mm (1.0 in)	32 of 100 (Routine)
Elliot	South Africa	Record daily precipitation	31.3 mm (1.2 in)	32 of 100 (Routine)
Maatsuyker Island Lighthouse	Australia	Record daily precipitation	35.8 mm (1.4 in)	31 of 100 (Routine)
Ohringen	Germany	Record daily precipitation	28.0 mm (1.1 in)	31 of 100 (Routine)
Ocosingo	Mexico	Record daily precipitation	64.8 mm (2.6 in)	31 of 100 (Routine)
Walnut	United States	Record daily precipitation	41.4 mm (1.6 in)	31 of 100 (Routine)
Newberry-Luce Co Rd Commission	United States	Record daily precipitation	28.2 mm (1.1 in)	31 of 100 (Routine)
Borzja	Russia	Record low minimum temperature	4.3 C (39.7 F)	30 of 100 (Routine)
Tuscaloosa Oliver Dam	United States	Record low maximum temperature	27.8 C (82.0 F)	30 of 100 (Routine)
Gary	United States	Record daily precipitation	44.5 mm (1.8 in)	30 of 100 (Routine)
Madison Sewage Plt	United States	Record high minimum temperature	25.6 C (78.1 F)	30 of 100 (Routine)
Lamoni	United States	Record high minimum temperature	26.1 C (79.0 F)	30 of 100 (Routine)
Clear Lake	United States	Record daily precipitation	63.8 mm (2.5 in)	30 of 100 (Routine)
Kolchugino	Russia	Record daily precipitation	46.2 mm (1.8 in)	29 of 100 (Routine)
Fairfield	United States	Record daily precipitation	25.4 mm (1.0 in)	29 of 100 (Routine)
Clay	United States	Record daily precipitation	37.1 mm (1.5 in)	29 of 100 (Routine)
Gage AP	United States	Record daily precipitation	34.8 mm (1.4 in)	29 of 100 (Routine)
Tombstone	United States	Record high minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Kankakee 3 SW	United States	Record daily precipitation	36.6 mm (1.4 in)	28 of 100 (Routine)
Trenton	United States	Record high minimum temperature	27.2 C (81.0 F)	28 of 100 (Routine)
Clarington Lock 14	United States	Record daily precipitation	28.4 mm (1.1 in)	28 of 100 (Routine)
Halifax Macrossan St	Australia	Record daily precipitation	25.1 mm (1.0 in)	27 of 100 (Routine)
Tuscaloosa Oliver Dam	United States	Record low minimum temperature	15.6 C (60.1 F)	27 of 100 (Routine)

Counts by Type and Timescale

431 records

Records set or tied on 30 July 1970 by type: Highest daily maximum 46, Lowest daily maximum 35, Highest daily minimum 120, Lowest daily minimum 44, Heaviest daily rainfall 186.

Records on 30 July 1970 by type
Record type	Records
Highest daily maximum	46
Lowest daily maximum	35
Highest daily minimum	120
Lowest daily minimum	44
Heaviest daily rainfall	186
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 July 1970 by timescale: all-time 1, monthly 6, daily 424.

How Much Records Were Beaten By

330 broken records

Margins by which the 330 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.7. Ties are not counted.

Top 20 by Significance

30 July 1970

Top 20 records on 30 July 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 July 1970	Tiskilwa 2 SE, US	daily rain	95.3 mm (3.8 in)	56.7 mm (2.2 in)	44 years	57 of 100 (Notable)
30 July 1970	W Branch 3SE, US	daily rain	56.4 mm (2.2 in)	47.5 mm (1.9 in)	24 years	54 of 100 (Notable)
30 July 1970	Pontiac, US	daily rain	88.6 mm (3.5 in)	78.7 mm (3.1 in)	24 years	53 of 100 (Notable)
30 July 1970	Streator 2SE, US	daily rain	71.1 mm (2.8 in)	56.9 mm (2.2 in)	28 years	53 of 100 (Notable)
30 July 1970	Moorestown 4 E, US	daily rain	100.3 mm (3.9 in)	24.1 mm (0.9 in)	77 years	50 of 100 (Notable)
30 July 1970	Danville, US	daily rain	46.5 mm (1.8 in)	33.8 mm (1.3 in)	71 years	49 of 100 (Notable)
30 July 1970	Kunzelsau, DE	monthly rain	66.0 mm (2.6 in)	10.5 mm (0.4 in)	44 years	46 of 100 (Notable)
30 July 1970	Frankfort Disposal, US	daily rain	67.6 mm (2.7 in)	41.9 mm (1.6 in)	43 years	44 of 100 (Notable)
30 July 1970	Kamensk-Uralskij, RU	daily rain	49.0 mm (1.9 in)	27.7 mm (1.1 in)	25 years	43 of 100 (Notable)
30 July 1970	Dixon Wwtp, US	daily rain	75.9 mm (3.0 in)	41.1 mm (1.6 in)	28 years	43 of 100 (Notable)
30 July 1970	Hoopeston, US	daily rain	61.5 mm (2.4 in)	40.4 mm (1.6 in)	28 years	43 of 100 (Notable)
30 July 1970	Kentland, US	daily rain	77.0 mm (3.0 in)	59.2 mm (2.3 in)	28 years	43 of 100 (Notable)
30 July 1970	Hyannis, US	monthly high min	25.6 C (78.1 F)	1.2 C (2.2 F)	74 years	42 of 100 (Notable)
30 July 1970	Berhampore, IN	daily rain	147.4 mm (5.8 in)	46.8 mm (1.8 in)	31 years	41 of 100 (Notable)
30 July 1970	W Lafayette 6 NW, US	daily rain	47.8 mm (1.9 in)	28.7 mm (1.1 in)	55 years	41 of 100 (Notable)
30 July 1970	Harpers Ferry River, US	daily rain	50.8 mm (2.0 in)	11.2 mm (0.4 in)	80 years	41 of 100 (Notable)
30 July 1970	Tittagudi, IN	daily rain	74.9 mm (2.9 in)	47.0 mm (1.9 in)	23 years	40 of 100 (Notable)
30 July 1970	Morris 1NW, US	daily rain	53.3 mm (2.1 in)	33.5 mm (1.3 in)	28 years	40 of 100 (Notable)
30 July 1970	Salamonia, US	daily rain	78.0 mm (3.1 in)	37.4 mm (1.5 in)	20 years	40 of 100 (Notable)
30 July 1970	Woodstock, CA	daily high min	22.2 C (72.0 F)	2.8 C (5.0 F)	80 years	39 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

1794 to 1970

Records set or tied on this calendar date in each year from 1794 to 1970. 1970 had 431 records.

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

Records on 07-30 in each year
Year	Records
1794	2
1797	1
1827	1
1828	2
1829	1
1830	1
1834	1
1837	2
1838	1
1840	1
1841	1
1843	1
1854	1
1857	1
1858	2
1860	4
1863	1
1867	1
1868	1
1869	2
1870	1
1874	2
1875	1
1876	1
1877	2
1879	1
1880	2
1885	3
1886	5
1887	6
1888	5
1889	1
1890	2
1891	1
1892	1
1893	10
1894	6
1895	2
1896	2
1897	4
1898	8
1899	2
1900	4
1901	11
1902	6
1903	25
1904	17
1905	29
1906	22
1907	11
1908	23
1909	30
1910	8
1911	54
1912	21
1913	34
1914	52
1915	26
1916	150
1917	93
1918	42
1919	19
1920	188
1921	193
1922	40
1923	428
1924	80
1925	275
1926	186
1927	109
1928	210
1929	221
1930	170
1931	432
1932	275
1933	451
1934	619
1935	340
1936	452
1937	245
1938	388
1939	395
1940	562
1941	371
1942	304
1943	397
1944	289
1945	299
1946	409
1947	394
1948	489
1949	512
1950	552
1951	322
1952	581
1953	345
1954	504
1955	787
1956	506
1957	289
1958	344
1959	391
1960	793
1961	511
1962	378
1963	308
1964	483
1965	978
1966	527
1967	282
1968	530
1969	506
1970	431
1971	2,319
1972	758
1973	434
1974	569
1975	1,048
1976	590
1977	641
1978	646
1979	761
1980	962
1981	851
1982	821
1983	904
1984	997
1985	1,029
1986	952
1987	1,084
1988	826
1989	1,227
1990	795
1991	734
1992	1,003
1993	965
1994	1,631
1995	1,207
1996	1,317
1997	933
1998	1,240
1999	1,456
2000	1,030
2001	1,400
2002	1,346
2003	1,163
2004	936
2005	788
2006	1,103
2007	1,160
2008	763
2009	1,328
2010	1,331
2011	1,003
2012	731
2013	737
2014	1,199
2015	682
2016	460
2017	464
2018	1,038
2019	486
2020	763
2021	839
2022	845
2023	683
2024	705
2025	869
2026	1,001

Download the Data

Data for records on 1970-07-30: 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	261
10 to 20	36
20 to 30	14
30 to 40	6
40 to 50	9
50 to 60	3
60 to 70	0
70 to 80	1