Weather Records on 21 July 1979

964 weather records were set or tied worldwide on 21 July 1979. Highest significance: Komga (Pol), ZA.

Key Facts for 21 July 1979

On 21 July 1979, 964 weather records were set or tied at long-record stations worldwide.
207 were record highs and 230 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 30 monthly and 930 daily.
Komga (Pol) set a daily record precipitation of 98.0 mm (3.9 in) on 21 July 1979.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 464 records.

Record Map

964 stations

964 station records on 21 July 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Komga (Pol)	South Africa	Record daily precipitation	98.0 mm (3.9 in)	67 of 100 (Major)
Alicedale	South Africa	Record daily precipitation	123.5 mm (4.9 in)	63 of 100 (Major)
Grahamstown	South Africa	Record daily precipitation	90.5 mm (3.6 in)	63 of 100 (Major)
Cameron Falls	Canada	Record daily precipitation	51.6 mm (2.0 in)	61 of 100 (Major)
Prospect	South Africa	Record daily precipitation	41.2 mm (1.6 in)	59 of 100 (Notable)
Grootvlakte	South Africa	Record daily precipitation	36.5 mm (1.4 in)	59 of 100 (Notable)
Paardekraal	South Africa	Record daily precipitation	46.5 mm (1.8 in)	59 of 100 (Notable)
Glen Roy	South Africa	Record daily precipitation	35.1 mm (1.4 in)	58 of 100 (Notable)
Bathurst Ns,	South Africa	Record daily precipitation	153.4 mm (6.0 in)	55 of 100 (Notable)
Waaipoort	South Africa	Record daily precipitation	31.9 mm (1.3 in)	55 of 100 (Notable)
Albertvale	South Africa	Record daily precipitation	28.5 mm (1.1 in)	55 of 100 (Notable)
Boesmansrivier	South Africa	Record daily precipitation	132.6 mm (5.2 in)	54 of 100 (Notable)
Hogsback (Bos)	South Africa	Record daily precipitation	50.2 mm (2.0 in)	53 of 100 (Notable)
Wheatlands	South Africa	Record daily precipitation	27.5 mm (1.1 in)	53 of 100 (Notable)
Tracy	United States	Record daily precipitation	72.9 mm (2.9 in)	53 of 100 (Notable)
Graaff Reinet	South Africa	Record daily precipitation	34.0 mm (1.3 in)	52 of 100 (Notable)
Somerset East	South Africa	Record daily precipitation	33.5 mm (1.3 in)	51 of 100 (Notable)
Tavernier	United States	Record daily precipitation	96.3 mm (3.8 in)	51 of 100 (Notable)
Kapuskasing Cda	Canada	Record daily precipitation	56.0 mm (2.2 in)	50 of 100 (Notable)
Kapuskasing A	Canada	Record daily precipitation	68.4 mm (2.7 in)	50 of 100 (Notable)
Buffelsnek (Bos)	South Africa	Record daily precipitation	93.0 mm (3.7 in)	50 of 100 (Notable)
Tierhoek	South Africa	Record daily precipitation	92.0 mm (3.6 in)	50 of 100 (Notable)
Rockford	South Africa	Record daily precipitation	51.0 mm (2.0 in)	50 of 100 (Notable)
Heilbron "Smoordrif"	South Africa	Record daily precipitation	30.5 mm (1.2 in)	50 of 100 (Notable)
Clarendon	Australia	Record daily precipitation	36.6 mm (1.4 in)	49 of 100 (Notable)
New Ulm 2 SE	United States	Record daily precipitation	73.7 mm (2.9 in)	49 of 100 (Notable)
Rosman	United States	Record daily precipitation	113.8 mm (4.5 in)	49 of 100 (Notable)
Brynawe, Paddock	South Africa	Record daily precipitation	153.0 mm (6.0 in)	48 of 100 (Notable)
Hahndorf	Australia	Record daily precipitation	42.8 mm (1.7 in)	47 of 100 (Notable)
Pearston (Pol)	South Africa	Record daily precipitation	31.0 mm (1.2 in)	47 of 100 (Notable)
Chickamauga Park	United States	Record daily precipitation	86.6 mm (3.4 in)	47 of 100 (Notable)
Bloukrans (Bos)	South Africa	Record daily precipitation	60.0 mm (2.4 in)	46 of 100 (Notable)
Crowe's Place,Seven	South Africa	Record daily precipitation	28.0 mm (1.1 in)	46 of 100 (Notable)
Buxton (Bos)	South Africa	Record daily precipitation	39.0 mm (1.5 in)	45 of 100 (Notable)
Hofmeyer (Mun)	South Africa	Record daily precipitation	38.0 mm (1.5 in)	45 of 100 (Notable)
Tarkastad (Pol)	South Africa	Record daily precipitation	29.0 mm (1.1 in)	45 of 100 (Notable)
Posevnaja	Russia	Record daily precipitation	43.7 mm (1.7 in)	44 of 100 (Notable)
East London -Signal STN	South Africa	Record daily precipitation	49.0 mm (1.9 in)	44 of 100 (Notable)
Athens Ben Epps AP	United States	Record daily precipitation	60.7 mm (2.4 in)	44 of 100 (Notable)
Port Lincoln (White Flat)	Australia	Record daily precipitation	25.0 mm (1.0 in)	43 of 100 (Notable)
Twin Lakes	United States	Record daily precipitation	30.7 mm (1.2 in)	43 of 100 (Notable)
Searchlight	United States	Record daily precipitation	29.5 mm (1.2 in)	43 of 100 (Notable)
Garrison	United States	Record daily precipitation	26.2 mm (1.0 in)	43 of 100 (Notable)
East London	South Africa	Record daily precipitation	88.0 mm (3.5 in)	42 of 100 (Notable)
Chickamauga 2 SW	United States	Record low maximum temperature	25.0 C (77.0 F)	42 of 100 (Notable)
Luna Rs	United States	Record high minimum temperature	17.2 C (63.0 F)	42 of 100 (Notable)
Glendale Springs	United States	Record daily precipitation	70.4 mm (2.8 in)	42 of 100 (Notable)
Rogersville 1 NE	United States	Record low maximum temperature	21.1 C (70.0 F)	42 of 100 (Notable)
Jagdalpur	India	Record daily precipitation	110.0 mm (4.3 in)	41 of 100 (Notable)
Dohne	South Africa	Record daily precipitation	26.0 mm (1.0 in)	41 of 100 (Notable)
Dadeville	United States	Record daily precipitation	104.1 mm (4.1 in)	41 of 100 (Notable)
Canton 4N	United States	Record daily precipitation	50.8 mm (2.0 in)	41 of 100 (Notable)
Banner Elk	United States	Record daily precipitation	71.1 mm (2.8 in)	41 of 100 (Notable)
Bratoljubovka	Russia	Record daily precipitation	95.5 mm (3.8 in)	40 of 100 (Notable)
Rust-En-Vrede	South Africa	Record daily precipitation	33.0 mm (1.3 in)	40 of 100 (Notable)
Jerome	United States	Record low minimum temperature	8.3 C (46.9 F)	40 of 100 (Notable)
Carlsbad	United States	Record low maximum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Coatesville 1 SW	United States	Record daily precipitation	121.4 mm (4.8 in)	40 of 100 (Notable)
Loerie (Bos)	South Africa	Record daily precipitation	40.0 mm (1.6 in)	39 of 100 (Notable)
Qacu (Bos)	South Africa	Record daily precipitation	37.3 mm (1.5 in)	39 of 100 (Notable)

Counts by Type and Timescale

964 records

Records set or tied on 21 July 1979 by type: Highest daily maximum 82, Lowest daily maximum 190, Highest daily minimum 125, Lowest daily minimum 40, Heaviest daily rainfall 527.

Records on 21 July 1979 by type
Record type	Records
Highest daily maximum	82
Lowest daily maximum	190
Highest daily minimum	125
Lowest daily minimum	40
Heaviest daily rainfall	527
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1979 by timescale: all-time 4, monthly 30, daily 930.

How Much Records Were Beaten By

830 broken records

Margins by which the 830 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 106.2. Ties are not counted.

Top 20 by Significance

21 July 1979

Top 20 records on 21 July 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1979	Komga (Pol), ZA	daily rain	98.0 mm (3.9 in)	85.3 mm (3.4 in)	61 years	67 of 100 (Major)
21 July 1979	Alicedale, ZA	daily rain	123.5 mm (4.9 in)	106.2 mm (4.2 in)	44 years	63 of 100 (Major)
21 July 1979	Grahamstown, ZA	daily rain	90.5 mm (3.6 in)	64.6 mm (2.5 in)	44 years	63 of 100 (Major)
21 July 1979	Cameron Falls, CA	daily rain	51.6 mm (2.0 in)	34.6 mm (1.4 in)	54 years	61 of 100 (Major)
21 July 1979	Prospect, ZA	daily rain	41.2 mm (1.6 in)	37.6 mm (1.5 in)	48 years	59 of 100 (Notable)
21 July 1979	Grootvlakte, ZA	daily rain	36.5 mm (1.4 in)	27.1 mm (1.1 in)	46 years	59 of 100 (Notable)
21 July 1979	Paardekraal, ZA	daily rain	46.5 mm (1.8 in)	34.1 mm (1.3 in)	44 years	59 of 100 (Notable)
21 July 1979	Glen Roy, ZA	daily rain	35.1 mm (1.4 in)	28.2 mm (1.1 in)	52 years	58 of 100 (Notable)
21 July 1979	Bathurst Ns,, ZA	monthly rain	153.4 mm (6.0 in)	81.6 mm (3.2 in)	3 years	55 of 100 (Notable)
21 July 1979	Waaipoort, ZA	daily rain	31.9 mm (1.3 in)	27.3 mm (1.1 in)	44 years	55 of 100 (Notable)
21 July 1979	Albertvale, ZA	daily rain	28.5 mm (1.1 in)	20.4 mm (0.8 in)	44 years	55 of 100 (Notable)
21 July 1979	Boesmansrivier, ZA	monthly rain	132.6 mm (5.2 in)	80.1 mm (3.2 in)	3 years	54 of 100 (Notable)
21 July 1979	Hogsback (Bos), ZA	daily rain	50.2 mm (2.0 in)	32.4 mm (1.3 in)	44 years	53 of 100 (Notable)
21 July 1979	Wheatlands, ZA	daily rain	27.5 mm (1.1 in)	23.7 mm (0.9 in)	30 years	53 of 100 (Notable)
21 July 1979	Tracy, US	daily rain	72.9 mm (2.9 in)	42.2 mm (1.7 in)	52 years	53 of 100 (Notable)
21 July 1979	Graaff Reinet, ZA	daily rain	34.0 mm (1.3 in)	29.4 mm (1.2 in)	44 years	52 of 100 (Notable)
21 July 1979	Somerset East, ZA	daily rain	33.5 mm (1.3 in)	22.6 mm (0.9 in)	44 years	51 of 100 (Notable)
21 July 1979	Tavernier, US	daily rain	96.3 mm (3.8 in)	67.9 mm (2.7 in)	24 years	51 of 100 (Notable)
21 July 1979	Kapuskasing Cda, CA	daily rain	56.0 mm (2.2 in)	42.8 mm (1.7 in)	13 years	50 of 100 (Notable)
21 July 1979	Kapuskasing A, CA	daily rain	68.4 mm (2.7 in)	39.2 mm (1.5 in)	22 years	50 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 1979

Records set or tied on this calendar date in each year from 1794 to 1979. 1979 had 964 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 1979-07-21: 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 2026-10-13 (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	756
20 to 40	55
40 to 60	9
60 to 80	6
80 to 100	3
100 to 120	1