Weather Records on 30 August 1970

423 weather records were set or tied worldwide on 30 August 1970. Highest significance: Pjalica, RU.

Key Facts for 30 August 1970

On 30 August 1970, 423 weather records were set or tied at long-record stations worldwide.
155 were record highs and 63 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 11 monthly and 411 daily.
Pjalica set an all-time record daily precipitation of 100.3 mm (3.9 in) on 30 August 1970.
Across 169 earlier years (1806 to 2026) the same calendar date averaged 423 records.

Record Map

423 stations

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

Weather records on 30 August 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pjalica	Russia	Record daily precipitation	100.3 mm (3.9 in)	68 of 100 (Major)
Cachoeira Paulista (Pcd)	Brazil	Record daily precipitation	88.2 mm (3.5 in)	53 of 100 (Notable)
Morvi	India	Record daily precipitation	110.0 mm (4.3 in)	47 of 100 (Notable)
Lermontovo	Armenia	Record daily precipitation	61.0 mm (2.4 in)	45 of 100 (Notable)
Majhgaon	India	Record daily precipitation	113.0 mm (4.4 in)	45 of 100 (Notable)
Toronto	Canada	Record daily precipitation	60.7 mm (2.4 in)	42 of 100 (Notable)
Tarko-Sale	Russia	Record daily precipitation	35.3 mm (1.4 in)	37 of 100 (Notable)
Dhoraji	India	Record daily precipitation	104.6 mm (4.1 in)	35 of 100 (Notable)
Makapuu Point 724	United States	Record daily precipitation	26.2 mm (1.0 in)	35 of 100 (Notable)
Tbilisi	Georgia	Record low maximum temperature	16.8 C (62.2 F)	34 of 100 (Routine)
Victor	United States	Record high minimum temperature	12.2 C (54.0 F)	34 of 100 (Routine)
Batavia	United States	Record daily precipitation	46.2 mm (1.8 in)	34 of 100 (Routine)
Mount Forest	Canada	Record daily precipitation	34.3 mm (1.4 in)	33 of 100 (Routine)
Holbrook	United States	Record high minimum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record low maximum temperature	7.1 C (44.8 F)	32 of 100 (Routine)
Vinhedo	Brazil	Record daily precipitation	25.0 mm (1.0 in)	32 of 100 (Routine)
Luverne	United States	Record high maximum temperature	35.0 C (95.0 F)	32 of 100 (Routine)
Penn Yan	United States	Record daily precipitation	45.2 mm (1.8 in)	31 of 100 (Routine)
Ironton	United States	Record daily precipitation	42.9 mm (1.7 in)	31 of 100 (Routine)
Cruzeiro	Brazil	Record daily precipitation	27.0 mm (1.1 in)	30 of 100 (Routine)
Shahpura	India	Record daily precipitation	141.0 mm (5.6 in)	30 of 100 (Routine)
Oakley	United States	Record high minimum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Rochester Gtr Intl	United States	Record daily precipitation	45.5 mm (1.8 in)	30 of 100 (Routine)
Paragould	United States	Record high minimum temperature	24.4 C (75.9 F)	29 of 100 (Routine)
Russellville	United States	Record high minimum temperature	22.8 C (73.0 F)	29 of 100 (Routine)
New Iberia AP - Acadiana Rgnl	United States	Record daily precipitation	38.6 mm (1.5 in)	29 of 100 (Routine)
Rogersville 1 NE	United States	Record high minimum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Vargem Grande Do Sul	Brazil	Record daily precipitation	28.0 mm (1.1 in)	28 of 100 (Routine)
Buena Vista 2S	United States	Record high minimum temperature	12.2 C (54.0 F)	28 of 100 (Routine)
Williamstown	United States	Record high minimum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Belfast	United States	Record daily precipitation	25.4 mm (1.0 in)	28 of 100 (Routine)
Evanston 1 E	United States	Record high minimum temperature	11.7 C (53.1 F)	28 of 100 (Routine)
Mandvi	India	Record daily precipitation	67.0 mm (2.6 in)	27 of 100 (Routine)
San Diego Curupatzeo	Mexico	Record daily precipitation	55.9 mm (2.2 in)	27 of 100 (Routine)
Willcox	United States	Record low minimum temperature	8.9 C (48.0 F)	27 of 100 (Routine)
Pontiac Wwtp	United States	Record daily precipitation	33.8 mm (1.3 in)	27 of 100 (Routine)
Winnsboro	United States	Record high minimum temperature	22.8 C (73.0 F)	27 of 100 (Routine)
Campinas (Cpef) D4-010	Brazil	Record daily precipitation	36.2 mm (1.4 in)	26 of 100 (Routine)
Rio Claro	Brazil	Record daily precipitation	28.7 mm (1.1 in)	26 of 100 (Routine)
Ahmadabad	India	Record daily precipitation	52.3 mm (2.1 in)	26 of 100 (Routine)
Vagra	India	Record daily precipitation	68.7 mm (2.7 in)	26 of 100 (Routine)
Caldwell	United States	Record high minimum temperature	18.3 C (64.9 F)	26 of 100 (Routine)
Malad	United States	Record high minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Collins	United States	Record daily precipitation	27.7 mm (1.1 in)	26 of 100 (Routine)
Headworks Portland Wtr B	United States	Record high minimum temperature	16.1 C (61.0 F)	26 of 100 (Routine)
Eugenio Lefevre	Brazil	Record daily precipitation	48.3 mm (1.9 in)	25 of 100 (Routine)
Toronto Lester B. Pearson Int'	Canada	Record daily precipitation	80.8 mm (3.2 in)	25 of 100 (Routine)
Albion	United States	Record high minimum temperature	22.8 C (73.0 F)	25 of 100 (Routine)
Williamsport	United States	Record daily precipitation	33.8 mm (1.3 in)	25 of 100 (Routine)
Greenwood	United States	Record daily precipitation	43.7 mm (1.7 in)	25 of 100 (Routine)
Ovid 4 S	United States	Record daily precipitation	40.4 mm (1.6 in)	25 of 100 (Routine)
Willard 4 SW	United States	Record high minimum temperature	23.3 C (73.9 F)	25 of 100 (Routine)
Torrinha (Cpef)	Brazil	Record daily precipitation	32.1 mm (1.3 in)	24 of 100 (Routine)
Sanand	India	Record daily precipitation	53.0 mm (2.1 in)	24 of 100 (Routine)
Blackfoot Dam	United States	Record high minimum temperature	10.6 C (51.1 F)	24 of 100 (Routine)
Pawnee City	United States	Record high minimum temperature	26.1 C (79.0 F)	24 of 100 (Routine)
Anahuac	United States	Record high maximum temperature	36.7 C (98.1 F)	24 of 100 (Routine)
Nome AP	United States	Record high maximum temperature	17.8 C (64.0 F)	24 of 100 (Routine)
Gumri	Armenia	Record low maximum temperature	16.6 C (61.9 F)	23 of 100 (Routine)
Astrakan	Russia	Record low minimum temperature	7.4 C (45.3 F)	23 of 100 (Routine)

Counts by Type and Timescale

423 records

Records set or tied on 30 August 1970 by type: Highest daily maximum 49, Lowest daily maximum 28, Highest daily minimum 106, Lowest daily minimum 35, Heaviest daily rainfall 205.

Records on 30 August 1970 by type
Record type	Records
Highest daily maximum	49
Lowest daily maximum	28
Highest daily minimum	106
Lowest daily minimum	35
Heaviest daily rainfall	205
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 30 August 1970 by timescale: all-time 1, monthly 11, daily 411.

How Much Records Were Beaten By

339 broken records

Margins by which the 339 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.2. Ties are not counted.

Top 20 by Significance

30 August 1970

Top 20 records on 30 August 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 August 1970	Pjalica, RU	all-time rain	100.3 mm (3.9 in)	52.1 mm (2.1 in)	17 years	68 of 100 (Major)
30 August 1970	Cachoeira Paulista (Pcd), BR	monthly rain	88.2 mm (3.5 in)	36.2 mm (1.4 in)	0 years	53 of 100 (Notable)
30 August 1970	Morvi, IN	daily rain	110.0 mm (4.3 in)	55.1 mm (2.2 in)	57 years	47 of 100 (Notable)
30 August 1970	Lermontovo, AM	monthly rain	61.0 mm (2.4 in)	15.7 mm (0.6 in)	27 years	45 of 100 (Notable)
30 August 1970	Majhgaon, IN	daily rain	113.0 mm (4.4 in)	76.2 mm (3.0 in)	28 years	45 of 100 (Notable)
30 August 1970	Toronto, CA	daily rain	60.7 mm (2.4 in)	25.6 mm (1.0 in)	29 years	42 of 100 (Notable)
30 August 1970	Tarko-Sale, RU	daily rain	35.3 mm (1.4 in)	17.1 mm (0.7 in)	23 years	37 of 100 (Notable)
30 August 1970	Dhoraji, IN	daily rain	104.6 mm (4.1 in)	43.6 mm (1.7 in)	23 years	35 of 100 (Notable)
30 August 1970	Makapuu Point 724, US	daily rain	26.2 mm (1.0 in)	12.2 mm (0.5 in)	40 years	35 of 100 (Notable)
30 August 1970	Tbilisi, GE	daily low max	16.8 C (62.2 F)	4.9 C (8.8 F)	44 years	34 of 100 (Routine)
30 August 1970	Victor, US	daily high min	12.2 C (54.0 F)	2.8 C (5.0 F)	61 years	34 of 100 (Routine)
30 August 1970	Batavia, US	daily rain	46.2 mm (1.8 in)	18.3 mm (0.7 in)	48 years	34 of 100 (Routine)
30 August 1970	Mount Forest, CA	daily rain	34.3 mm (1.4 in)	9.2 mm (0.36 in)	52 years	33 of 100 (Routine)
30 August 1970	Holbrook, US	daily high min	23.9 C (75.0 F)	4.5 C (8.1 F)	35 years	33 of 100 (Routine)
30 August 1970	Hobart (Ellerslie Road), AU	daily low max	7.1 C (44.8 F)	1.2 C (2.2 F)	69 years	32 of 100 (Routine)
30 August 1970	Vinhedo, BR	daily rain	25.0 mm (1.0 in)	22.8 mm (0.9 in)	15 years	32 of 100 (Routine)
30 August 1970	Luverne, US	daily high max	35.0 C (95.0 F)	1.7 C (3.1 F)	71 years	32 of 100 (Routine)
30 August 1970	Penn Yan, US	daily rain	45.2 mm (1.8 in)	23.1 mm (0.9 in)	16 years	31 of 100 (Routine)
30 August 1970	Ironton, US	daily rain	42.9 mm (1.7 in)	15.2 mm (0.6 in)	41 years	31 of 100 (Routine)
30 August 1970	Cruzeiro, BR	daily rain	27.0 mm (1.1 in)	18.8 mm (0.7 in)	12 years	30 of 100 (Routine)

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

1806 to 1970

Records set or tied on this calendar date in each year from 1806 to 1970. 1970 had 423 records.

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

Records on 08-30 in each year
Year	Records
1806	1
1807	4
1813	1
1814	2
1827	1
1829	1
1835	1
1838	1
1839	1
1845	4
1850	1
1851	2
1855	1
1857	1
1859	1
1864	2
1867	1
1869	1
1870	2
1874	1
1875	2
1876	1
1877	2
1878	1
1880	4
1881	2
1882	1
1884	1
1885	5
1886	7
1887	1
1888	1
1889	2
1890	5
1891	1
1892	3
1893	3
1894	2
1895	1
1896	1
1897	3
1898	3
1899	2
1900	6
1901	8
1902	12
1903	19
1904	13
1905	23
1906	29
1907	8
1908	10
1909	37
1910	15
1911	41
1912	60
1913	22
1914	23
1915	47
1916	17
1917	50
1918	45
1919	17
1920	78
1921	100
1922	65
1923	61
1924	283
1925	167
1926	173
1927	109
1928	327
1929	208
1930	245
1931	192
1932	1,102
1933	274
1934	519
1935	476
1936	191
1937	418
1938	233
1939	401
1940	346
1941	422
1942	385
1943	487
1944	491
1945	455
1946	545
1947	599
1948	519
1949	240
1950	481
1951	1,091
1952	316
1953	1,124
1954	516
1955	417
1956	479
1957	321
1958	363
1959	546
1960	356
1961	573
1962	387
1963	442
1964	422
1965	1,118
1966	500
1967	536
1968	729
1969	522
1970	423
1971	443
1972	579
1973	646
1974	838
1975	664
1976	679
1977	665
1978	825
1979	517
1980	572
1981	684
1982	770
1983	696
1984	1,127
1985	629
1986	1,768
1987	638
1988	881
1989	791
1990	983
1991	938
1992	1,697
1993	1,200
1994	601
1995	940
1996	1,385
1997	960
1998	1,278
1999	864
2000	1,189
2001	750
2002	801
2003	1,226
2004	1,087
2005	1,500
2006	989
2007	1,300
2008	678
2009	1,251
2010	1,552
2011	994
2012	1,087
2013	644
2014	558
2015	1,074
2016	552
2017	924
2018	616
2019	755
2020	671
2021	429
2022	1,077
2023	651
2024	912
2025	324
2026	733

Download the Data

Data for records on 1970-08-30: 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	275
10 to 20	43
20 to 30	13
30 to 40	4
40 to 50	1
50 to 60	2
60 to 70	0
70 to 80	1