Weather Records on 21 August 1967

541 weather records were set or tied worldwide on 21 August 1967. Highest significance: St Marks 5 SSE, US.

Key Facts for 21 August 1967

On 21 August 1967, 541 weather records were set or tied at long-record stations worldwide.
189 were record highs and 124 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 12 monthly and 528 daily.
St Marks 5 SSE set a daily record precipitation of 113.0 mm (4.4 in) on 21 August 1967.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 449 records.

Record Map

541 stations

541 station records on 21 August 1967 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 1967: highest significance records shown on the map
Station	Country	Type	Value	Significance
St Marks 5 SSE	United States	Record daily precipitation	113.0 mm (4.4 in)	63 of 100 (Major)
Broomehill	Australia	Record daily precipitation	33.5 mm (1.3 in)	49 of 100 (Notable)
Pearshape	Australia	Record daily precipitation	51.6 mm (2.0 in)	48 of 100 (Notable)
Horseshoe	Australia	Record daily precipitation	31.2 mm (1.2 in)	45 of 100 (Notable)
Richmond (Lowlands)	Australia	Record daily precipitation	29.7 mm (1.2 in)	45 of 100 (Notable)
Coraopolis Neville Is	United States	Record daily precipitation	46.5 mm (1.8 in)	45 of 100 (Notable)
Bogoroditskoye-Fenino	Russia	Record daily precipitation	35.8 mm (1.4 in)	44 of 100 (Notable)
Cordele	United States	Record daily precipitation	47.2 mm (1.9 in)	44 of 100 (Notable)
Windsor	United States	Record low minimum temperature	6.1 C (43.0 F)	42 of 100 (Notable)
Griffin	United States	Record low maximum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Manypeaks	Australia	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Georgievsk	Russia	Record daily precipitation	72.8 mm (2.9 in)	39 of 100 (Notable)
Matehuala (Smn)	Mexico	Record daily precipitation	36.8 mm (1.4 in)	38 of 100 (Notable)
Artesia 6S	United States	Record low minimum temperature	9.4 C (48.9 F)	38 of 100 (Notable)
Americus	United States	Record low maximum temperature	25.6 C (78.1 F)	37 of 100 (Notable)
Americus	United States	Record daily precipitation	71.6 mm (2.8 in)	37 of 100 (Notable)
Cape Leeuwin	Australia	Record daily precipitation	27.4 mm (1.1 in)	36 of 100 (Notable)
Lilydale	Australia	Record daily precipitation	39.6 mm (1.6 in)	36 of 100 (Notable)
St Marks 5 SSE	United States	Record low maximum temperature	26.1 C (79.0 F)	36 of 100 (Notable)
W Pt	United States	Record low maximum temperature	24.4 C (75.9 F)	36 of 100 (Notable)
Adams	United States	Record daily precipitation	37.8 mm (1.5 in)	36 of 100 (Notable)
Katanning Comparison	Australia	Record daily precipitation	34.8 mm (1.4 in)	35 of 100 (Notable)
Bowning (Wanganui)	Australia	Record daily precipitation	33.5 mm (1.3 in)	35 of 100 (Notable)
Kellevie	Australia	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Pinjarra	Australia	Record daily precipitation	43.7 mm (1.7 in)	34 of 100 (Routine)
La Grange 1N	United States	Record low maximum temperature	24.4 C (75.9 F)	34 of 100 (Routine)
Conconully	United States	Record high minimum temperature	18.9 C (66.0 F)	34 of 100 (Routine)
Narrawong	Australia	Record daily precipitation	30.5 mm (1.2 in)	32 of 100 (Routine)
Chilliwack	Canada	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Madison	United States	Record daily precipitation	30.0 mm (1.2 in)	32 of 100 (Routine)
Hawkinsville	United States	Record daily precipitation	29.2 mm (1.1 in)	32 of 100 (Routine)
Saint Maries	United States	Record high minimum temperature	16.1 C (61.0 F)	32 of 100 (Routine)
Saint Ignatius	United States	Record high minimum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Albion	United States	Record low minimum temperature	10.6 C (51.1 F)	31 of 100 (Routine)
Clearwater	United States	Record high minimum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Port Menier	Canada	Record daily precipitation	32.0 mm (1.3 in)	30 of 100 (Routine)
Oolitic Purdue Ex Fm	United States	Record low maximum temperature	18.9 C (66.0 F)	30 of 100 (Routine)
Vevay	United States	Record low minimum temperature	11.1 C (52.0 F)	30 of 100 (Routine)
Keene	United States	Record daily precipitation	40.9 mm (1.6 in)	30 of 100 (Routine)
Newberry	United States	Record daily precipitation	33.8 mm (1.3 in)	30 of 100 (Routine)
Newport	United States	Record high minimum temperature	15.6 C (60.1 F)	30 of 100 (Routine)
Blackwood	Australia	Record daily precipitation	29.0 mm (1.1 in)	29 of 100 (Routine)
Pekisko	Canada	Record high minimum temperature	12.2 C (54.0 F)	29 of 100 (Routine)
Nowgong	India	Record daily precipitation	69.0 mm (2.7 in)	29 of 100 (Routine)
Calvillo (Smn)	Mexico	Record low minimum temperature	10.0 C (50.0 F)	29 of 100 (Routine)
Idaho City	United States	Record high minimum temperature	12.8 C (55.0 F)	29 of 100 (Routine)
Fortine 1 N	United States	Record high minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Tarboro 1 S	United States	Record daily precipitation	94.7 mm (3.7 in)	29 of 100 (Routine)
Blackville 3 W	United States	Record daily precipitation	33.5 mm (1.3 in)	29 of 100 (Routine)
Vermillion 2 SE	United States	Record low minimum temperature	5.0 C (41.0 F)	29 of 100 (Routine)
Willapa Harbor	United States	Record high minimum temperature	16.1 C (61.0 F)	29 of 100 (Routine)
Escanaba	United States	Record low minimum temperature	3.9 C (39.0 F)	29 of 100 (Routine)
Seattle Urban Site	United States	Record high minimum temperature	17.8 C (64.0 F)	29 of 100 (Routine)
Arthur River	Australia	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Woodanilling	Australia	Record daily precipitation	42.7 mm (1.7 in)	28 of 100 (Routine)
Mount Wellington (the Springs)	Australia	Record daily precipitation	32.3 mm (1.3 in)	28 of 100 (Routine)
Shawnigan Lake	Canada	Record high minimum temperature	16.7 C (62.1 F)	28 of 100 (Routine)
Port Hastings	Canada	Record high minimum temperature	20.0 C (68.0 F)	28 of 100 (Routine)
Upper Lake 2 N	United States	Record high maximum temperature	38.9 C (102.0 F)	28 of 100 (Routine)
Darby	United States	Record high minimum temperature	15.6 C (60.1 F)	28 of 100 (Routine)

Counts by Type and Timescale

541 records

Records set or tied on 21 August 1967 by type: Highest daily maximum 61, Lowest daily maximum 60, Highest daily minimum 128, Lowest daily minimum 64, Heaviest daily rainfall 228.

Records on 21 August 1967 by type
Record type	Records
Highest daily maximum	61
Lowest daily maximum	60
Highest daily minimum	128
Lowest daily minimum	64
Heaviest daily rainfall	228
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 1967 by timescale: all-time 1, monthly 12, daily 528.

How Much Records Were Beaten By

422 broken records

Margins by which the 422 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 86.1. Ties are not counted.

Top 20 by Significance

21 August 1967

Top 20 records on 21 August 1967 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 1967	St Marks 5 SSE, US	daily rain	113.0 mm (4.4 in)	86.1 mm (3.4 in)	58 years	63 of 100 (Major)
21 August 1967	Broomehill, AU	daily rain	33.5 mm (1.3 in)	13.4 mm (0.5 in)	50 years	49 of 100 (Notable)
21 August 1967	Pearshape, AU	monthly rain	51.6 mm (2.0 in)	15.5 mm (0.6 in)	31 years	48 of 100 (Notable)
21 August 1967	Horseshoe, AU	daily rain	31.2 mm (1.2 in)	17.0 mm (0.7 in)	44 years	45 of 100 (Notable)
21 August 1967	Richmond (Lowlands), AU	daily rain	29.7 mm (1.2 in)	18.0 mm (0.7 in)	4 years	45 of 100 (Notable)
21 August 1967	Coraopolis Neville Is, US	daily rain	46.5 mm (1.8 in)	28.5 mm (1.1 in)	40 years	45 of 100 (Notable)
21 August 1967	Bogoroditskoye-Fenino, RU	daily rain	35.8 mm (1.4 in)	20.2 mm (0.8 in)	44 years	44 of 100 (Notable)
21 August 1967	Cordele, US	daily rain	47.2 mm (1.9 in)	36.8 mm (1.4 in)	26 years	44 of 100 (Notable)
21 August 1967	Windsor, US	monthly low min	6.1 C (43.0 F)	1.1 C (2.0 F)	73 years	42 of 100 (Notable)
21 August 1967	Griffin, US	daily low max	22.2 C (72.0 F)	4.5 C (8.1 F)	60 years	41 of 100 (Notable)
21 August 1967	Manypeaks, AU	daily rain	25.4 mm (1.0 in)	18.8 mm (0.7 in)	12 years	39 of 100 (Notable)
21 August 1967	Georgievsk, RU	monthly rain	72.8 mm (2.9 in)	16.1 mm (0.6 in)	22 years	39 of 100 (Notable)
21 August 1967	Matehuala (Smn), MX	daily rain	36.8 mm (1.4 in)	21.6 mm (0.9 in)	26 years	38 of 100 (Notable)
21 August 1967	Artesia 6S, US	daily low min	9.4 C (48.9 F)	3.9 C (7.0 F)	52 years	38 of 100 (Notable)
21 August 1967	Americus, US	daily low max	25.6 C (78.1 F)	3.8 C (6.8 F)	56 years	37 of 100 (Notable)
21 August 1967	Americus, US	daily rain	71.6 mm (2.8 in)	27.1 mm (1.1 in)	36 years	37 of 100 (Notable)
21 August 1967	Cape Leeuwin, AU	daily rain	27.4 mm (1.1 in)	10.1 mm (0.4 in)	50 years	36 of 100 (Notable)
21 August 1967	Lilydale, AU	daily rain	39.6 mm (1.6 in)	20.3 mm (0.8 in)	1 year	36 of 100 (Notable)
21 August 1967	St Marks 5 SSE, US	daily low max	26.1 C (79.0 F)	2.8 C (5.0 F)	58 years	36 of 100 (Notable)
21 August 1967	W Pt, US	daily low max	24.4 C (75.9 F)	3.4 C (6.1 F)	56 years	36 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

1800 to 1967

Records set or tied on this calendar date in each year from 1800 to 1967. 1967 had 541 records.

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

Records on 08-21 in each year
Year	Records
1800	1
1802	1
1804	1
1807	1
1816	1
1818	1
1832	1
1834	1
1839	3
1843	1
1847	1
1849	3
1850	1
1851	2
1863	1
1866	1
1867	2
1870	3
1871	2
1872	1
1873	1
1876	1
1877	2
1879	2
1884	2
1885	5
1886	1
1887	5
1888	2
1889	3
1890	4
1891	2
1893	4
1894	8
1895	3
1896	2
1897	4
1898	4
1899	7
1900	4
1901	9
1902	8
1903	6
1904	8
1905	4
1906	22
1907	20
1908	13
1909	17
1910	33
1911	19
1912	50
1913	37
1914	24
1915	21
1916	106
1917	101
1918	202
1919	19
1920	59
1921	34
1922	58
1923	111
1924	135
1925	220
1926	227
1927	228
1928	110
1929	234
1930	297
1931	277
1932	264
1933	328
1934	320
1935	318
1936	807
1937	762
1938	239
1939	630
1940	683
1941	180
1942	415
1943	438
1944	346
1945	544
1946	390
1947	954
1948	305
1949	508
1950	958
1951	699
1952	368
1953	331
1954	497
1955	885
1956	701
1957	490
1958	389
1959	704
1960	490
1961	644
1962	469
1963	338
1964	794
1965	455
1966	661
1967	541
1968	1,014
1969	650
1970	373
1971	660
1972	441
1973	438
1974	564
1975	545
1976	756
1977	764
1978	445
1979	778
1980	904
1981	1,015
1982	769
1983	1,407
1984	975
1985	623
1986	1,166
1987	740
1988	889
1989	828
1990	910
1991	828
1992	957
1993	698
1994	968
1995	962
1996	950
1997	1,291
1998	948
1999	717
2000	861
2001	797
2002	965
2003	1,241
2004	1,585
2005	1,071
2006	797
2007	1,829
2008	1,012
2009	1,319
2010	1,155
2011	1,022
2012	990
2013	513
2014	624
2015	651
2016	890
2017	347
2018	816
2019	631
2020	1,147
2021	767
2022	917
2023	1,826
2024	777
2025	1,230
2026	1,289

Download the Data

Data for records on 1967-08-21: 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 2026-10-13 (13 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 20	403
20 to 40	18
40 to 60	0
60 to 80	0
80 to 100	1