Weather Records on 21 July 1970

1,241 weather records were set or tied worldwide on 21 July 1970. Highest significance: Seligman, US.

Key Facts for 21 July 1970

On 21 July 1970, 1,241 weather records were set or tied at long-record stations worldwide.
124 were record highs and 865 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 76 monthly and 1,161 daily.
Seligman set an all-time record daily precipitation of 122.9 mm (4.8 in) on 21 July 1970.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 462 records.

Record Map

1,241 stations

1,241 station records on 21 July 1970 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1970: highest significance records shown on the map
Station	Country	Type	Value	Significance
Seligman	United States	Record daily precipitation	122.9 mm (4.8 in)	66 of 100 (Major)
Piranhas (Marechal Floriano)	Brazil	Record daily precipitation	26.4 mm (1.0 in)	56 of 100 (Notable)
Three Rivers Ed Ph 2	United States	Record high minimum temperature	29.4 C (84.9 F)	55 of 100 (Notable)
Vik I Sogn III	Norway	Record daily precipitation	33.5 mm (1.3 in)	54 of 100 (Notable)
Pioche	United States	Record daily precipitation	31.0 mm (1.2 in)	54 of 100 (Notable)
Camp Hill 2NW	United States	Record daily precipitation	87.1 mm (3.4 in)	51 of 100 (Notable)
Palmares	Brazil	Record daily precipitation	89.2 mm (3.5 in)	49 of 100 (Notable)
Sviland	Norway	Record daily precipitation	56.6 mm (2.2 in)	49 of 100 (Notable)
Krasnojarsk	Russia	Record daily precipitation	39.3 mm (1.5 in)	49 of 100 (Notable)
Boa Vista (Ledo)	Brazil	Record daily precipitation	51.7 mm (2.0 in)	48 of 100 (Notable)
Gravata	Brazil	Record daily precipitation	48.0 mm (1.9 in)	48 of 100 (Notable)
Bom Jardim	Brazil	Record daily precipitation	120.8 mm (4.8 in)	46 of 100 (Notable)
Tacaratu	Brazil	Record daily precipitation	45.2 mm (1.8 in)	46 of 100 (Notable)
Algazy Ostrov	Kazakhstan	Record daily precipitation	26.4 mm (1.0 in)	45 of 100 (Notable)
Ogdensburg 4 NE	United States	Record daily precipitation	40.6 mm (1.6 in)	45 of 100 (Notable)
Asheville	United States	Record daily precipitation	54.9 mm (2.2 in)	45 of 100 (Notable)
Belya	Russia	Record daily precipitation	28.5 mm (1.1 in)	44 of 100 (Notable)
Prattville	United States	Record daily precipitation	84.8 mm (3.3 in)	44 of 100 (Notable)
Fayette	United States	Record daily precipitation	78.7 mm (3.1 in)	42 of 100 (Notable)
Marshall	United States	Record daily precipitation	38.9 mm (1.5 in)	42 of 100 (Notable)
Stavanger - Valand	Norway	Record daily precipitation	59.2 mm (2.3 in)	41 of 100 (Notable)
Uppsala_Aut	Sweden	Record low maximum temperature	16.4 C (61.5 F)	41 of 100 (Notable)
Garden City	United States	Record daily precipitation	74.9 mm (2.9 in)	41 of 100 (Notable)
Silver Bell	United States	Record low maximum temperature	27.2 C (81.0 F)	41 of 100 (Notable)
Abilene	United States	Record low minimum temperature	8.9 C (48.0 F)	41 of 100 (Notable)
Coldwater	United States	Record low minimum temperature	10.0 C (50.0 F)	41 of 100 (Notable)
Montpelier	United States	Record low maximum temperature	17.2 C (63.0 F)	41 of 100 (Notable)
Sandusky	United States	Record low minimum temperature	5.0 C (41.0 F)	41 of 100 (Notable)
Jamui	India	Record daily precipitation	95.0 mm (3.7 in)	40 of 100 (Notable)
Pine Bluff	United States	Record low maximum temperature	24.4 C (75.9 F)	40 of 100 (Notable)
Deland 1 SSE	United States	Record daily precipitation	79.2 mm (3.1 in)	40 of 100 (Notable)
Ness City	United States	Record low minimum temperature	8.9 C (48.0 F)	40 of 100 (Notable)
Lamar 7N	United States	Record low maximum temperature	18.3 C (64.9 F)	40 of 100 (Notable)
Marlow 1 WSW	United States	Record low minimum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Stillwater 2 W	United States	Record low maximum temperature	19.4 C (66.9 F)	40 of 100 (Notable)
Ashwood	United States	Record low maximum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Sao Bento Do Una	Brazil	Record daily precipitation	30.2 mm (1.2 in)	39 of 100 (Notable)
Tallapoosa 2 N	United States	Record daily precipitation	101.6 mm (4.0 in)	39 of 100 (Notable)
Houston	United States	Record low maximum temperature	23.3 C (73.9 F)	39 of 100 (Notable)
Nevada Wtp	United States	Record low minimum temperature	7.2 C (45.0 F)	39 of 100 (Notable)
Claremore 2 ENE	United States	Record low maximum temperature	20.6 C (69.1 F)	39 of 100 (Notable)
Kingfisher	United States	Record low minimum temperature	11.7 C (53.1 F)	39 of 100 (Notable)
Lynnville 4 SSW	United States	Record low maximum temperature	21.1 C (70.0 F)	39 of 100 (Notable)
Hatanga	Russia	Record daily precipitation	28.6 mm (1.1 in)	38 of 100 (Notable)
Roosevelt 1 S	United States	Record daily precipitation	32.3 mm (1.3 in)	38 of 100 (Notable)
Dumas	United States	Record low maximum temperature	23.3 C (73.9 F)	38 of 100 (Notable)
Holly	United States	Record low maximum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Farmland 5 NNW	United States	Record low maximum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Mt Vernon	United States	Record low maximum temperature	21.7 C (71.1 F)	38 of 100 (Notable)
Vincennes 4 E	United States	Record low maximum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
El Reno 1 N	United States	Record low maximum temperature	23.9 C (75.0 F)	38 of 100 (Notable)
Crosbyton	United States	Record low minimum temperature	12.8 C (55.0 F)	38 of 100 (Notable)
Stuttgart	United States	Record low maximum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Ashland	United States	Record low minimum temperature	9.4 C (48.9 F)	37 of 100 (Notable)
Norton 9SSE	United States	Record low minimum temperature	7.2 C (45.0 F)	37 of 100 (Notable)
Phillipsburg 1 SSE	United States	Record low minimum temperature	7.2 C (45.0 F)	37 of 100 (Notable)
Cave Run Lake	United States	Record low maximum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Leitchfield 2 N	United States	Record low maximum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Blackwell 1 W	United States	Record low minimum temperature	10.6 C (51.1 F)	37 of 100 (Notable)
Meeker 5 W	United States	Record low maximum temperature	21.1 C (70.0 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,241 records

Records set or tied on 21 July 1970 by type: Highest daily maximum 27, Lowest daily maximum 401, Highest daily minimum 97, Lowest daily minimum 464, Heaviest daily rainfall 252.

Records on 21 July 1970 by type
Record type	Records
Highest daily maximum	27
Lowest daily maximum	401
Highest daily minimum	97
Lowest daily minimum	464
Heaviest daily rainfall	252
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1970 by timescale: all-time 4, monthly 76, daily 1,161.

How Much Records Were Beaten By

978 broken records

Margins by which the 978 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 62.9. Ties are not counted.

Top 20 by Significance

21 July 1970

Top 20 records on 21 July 1970 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1970	Seligman, US	all-time rain	122.9 mm (4.8 in)	51.8 mm (2.0 in)	2 years	66 of 100 (Major)
21 July 1970	Piranhas (Marechal Floriano), BR	daily rain	26.4 mm (1.0 in)	18.9 mm (0.7 in)	37 years	56 of 100 (Notable)
21 July 1970	Three Rivers Ed Ph 2, US	all-time high min	29.4 C (84.9 F)	3.8 C (6.8 F)	59 years	55 of 100 (Notable)
21 July 1970	Vik I Sogn III, NO	daily rain	33.5 mm (1.3 in)	12.9 mm (0.5 in)	73 years	54 of 100 (Notable)
21 July 1970	Pioche, US	daily rain	31.0 mm (1.2 in)	28.7 mm (1.1 in)	23 years	54 of 100 (Notable)
21 July 1970	Camp Hill 2NW, US	daily rain	87.1 mm (3.4 in)	49.0 mm (1.9 in)	35 years	51 of 100 (Notable)
21 July 1970	Palmares, BR	daily rain	89.2 mm (3.5 in)	43.3 mm (1.7 in)	28 years	49 of 100 (Notable)
21 July 1970	Sviland, NO	daily rain	56.6 mm (2.2 in)	30.1 mm (1.2 in)	32 years	49 of 100 (Notable)
21 July 1970	Krasnojarsk, RU	daily rain	39.3 mm (1.5 in)	24.3 mm (1.0 in)	53 years	49 of 100 (Notable)
21 July 1970	Boa Vista (Ledo), BR	daily rain	51.7 mm (2.0 in)	23.7 mm (0.9 in)	31 years	48 of 100 (Notable)
21 July 1970	Gravata, BR	daily rain	48.0 mm (1.9 in)	36.0 mm (1.4 in)	19 years	48 of 100 (Notable)
21 July 1970	Bom Jardim, BR	daily rain	120.8 mm (4.8 in)	60.8 mm (2.4 in)	31 years	46 of 100 (Notable)
21 July 1970	Tacaratu, BR	daily rain	45.2 mm (1.8 in)	28.2 mm (1.1 in)	24 years	46 of 100 (Notable)
21 July 1970	Algazy Ostrov, KZ	daily rain	26.4 mm (1.0 in)	24.4 mm (1.0 in)	9 years	45 of 100 (Notable)
21 July 1970	Ogdensburg 4 NE, US	daily rain	40.6 mm (1.6 in)	19.8 mm (0.8 in)	61 years	45 of 100 (Notable)
21 July 1970	Asheville, US	daily rain	54.9 mm (2.2 in)	24.4 mm (1.0 in)	33 years	45 of 100 (Notable)
21 July 1970	Belya, RU	daily rain	28.5 mm (1.1 in)	20.4 mm (0.8 in)	24 years	44 of 100 (Notable)
21 July 1970	Prattville, US	daily rain	84.8 mm (3.3 in)	48.5 mm (1.9 in)	15 years	44 of 100 (Notable)
21 July 1970	Fayette, US	daily rain	78.7 mm (3.1 in)	50.8 mm (2.0 in)	16 years	42 of 100 (Notable)
21 July 1970	Marshall, US	daily rain	38.9 mm (1.5 in)	23.7 mm (0.9 in)	75 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

1794 to 1970

Records set or tied on this calendar date in each year from 1794 to 1970. 1970 had 1,241 records.

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

Records on 07-21 in each year
Year	Records
1794	1
1795	1
1796	1
1797	1
1813	2
1832	2
1837	1
1839	1
1843	1
1844	2
1854	1
1859	3
1865	3
1868	3
1872	1
1876	1
1879	2
1880	1
1881	1
1884	1
1885	1
1886	2
1888	2
1889	3
1890	2
1892	3
1893	3
1894	3
1895	1
1896	3
1897	4
1898	7
1899	2
1900	6
1901	13
1902	12
1903	10
1904	8
1905	13
1906	13
1907	12
1908	25
1909	18
1910	12
1911	37
1912	52
1913	41
1914	48
1915	81
1916	72
1917	136
1918	130
1919	51
1920	33
1921	55
1922	48
1923	132
1924	286
1925	202
1926	401
1927	191
1928	205
1929	360
1930	521
1931	549
1932	322
1933	208
1934	965
1935	236
1936	322
1937	253
1938	638
1939	415
1940	318
1941	226
1942	318
1943	253
1944	716
1945	300
1946	398
1947	795
1948	403
1949	603
1950	662
1951	427
1952	657
1953	351
1954	656
1955	582
1956	490
1957	447
1958	531
1959	940
1960	651
1961	388
1962	263
1963	470
1964	457
1965	748
1966	626
1967	313
1968	334
1969	636
1970	1,241
1971	475
1972	1,046
1973	871
1974	536
1975	380
1976	477
1977	708
1978	1,155
1979	964
1980	926
1981	1,352
1982	588
1983	1,234
1984	764
1985	554
1986	791
1987	1,025
1988	1,015
1989	973
1990	914
1991	812
1992	1,562
1993	866
1994	773
1995	1,247
1996	1,141
1997	849
1998	1,674
1999	814
2000	1,230
2001	889
2002	990
2003	1,250
2004	694
2005	1,420
2006	1,479
2007	1,145
2008	989
2009	1,306
2010	1,148
2011	1,414
2012	815
2013	526
2014	762
2015	704
2016	645
2017	433
2018	942
2019	755
2020	363
2021	574
2022	866
2023	816
2024	873
2025	881
2026	874

Download the Data

Data for records on 1970-07-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 10	893
10 to 20	49
20 to 30	16
30 to 40	9
40 to 50	7
50 to 60	2
60 to 70	2