Weather Records on 30 July 1971

2,319 weather records were set or tied worldwide on 30 July 1971. Highest significance: Harkerville (Bos), ZA.

Key Facts for 30 July 1971

On 30 July 1971, 2,319 weather records were set or tied at long-record stations worldwide.
209 were record highs and 1,357 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 172 monthly and 2,146 daily.
Harkerville (Bos) set a daily record precipitation of 72.0 mm (2.8 in) on 30 July 1971.
Across 168 earlier years (1794 to 2026) the same calendar date averaged 429 records.

Record Map

2,000 stations, highest significance shown

2,000 station records on 30 July 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 July 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Harkerville (Bos)	South Africa	Record daily precipitation	72.0 mm (2.8 in)	66 of 100 (Major)
Brickhouse	Australia	Record daily precipitation	62.7 mm (2.5 in)	65 of 100 (Major)
Oudtshoorn	South Africa	Record daily precipitation	29.2 mm (1.1 in)	64 of 100 (Major)
Fort Fordyce (Bos)	South Africa	Record daily precipitation	56.0 mm (2.2 in)	63 of 100 (Major)
Dontsa	South Africa	Record daily precipitation	60.0 mm (2.4 in)	63 of 100 (Major)
Isidinge (Bos)	South Africa	Record daily precipitation	67.0 mm (2.6 in)	63 of 100 (Major)
Buxton (Bos)	South Africa	Record daily precipitation	44.0 mm (1.7 in)	62 of 100 (Major)
Izeleni (Bos)	South Africa	Record daily precipitation	69.5 mm (2.7 in)	62 of 100 (Major)
Ventnor	South Africa	Record daily precipitation	56.0 mm (2.2 in)	62 of 100 (Major)
Dohne (Sar)	South Africa	Record daily precipitation	43.5 mm (1.7 in)	61 of 100 (Major)
Laborare	South Africa	Record daily precipitation	27.0 mm (1.1 in)	59 of 100 (Notable)
Yardley Chase	South Africa	Record daily precipitation	30.0 mm (1.2 in)	59 of 100 (Notable)
Belele	Australia	Record daily precipitation	25.7 mm (1.0 in)	58 of 100 (Notable)
Four Corners	Australia	Record daily precipitation	27.9 mm (1.1 in)	58 of 100 (Notable)
Jimba Jimba	Australia	Record daily precipitation	50.8 mm (2.0 in)	56 of 100 (Notable)
Koeifontein	South Africa	Record daily precipitation	40.0 mm (1.6 in)	56 of 100 (Notable)
Nququ (Bos)	South Africa	Record daily precipitation	48.0 mm (1.9 in)	56 of 100 (Notable)
Ellesmere	South Africa	Record daily precipitation	29.0 mm (1.1 in)	56 of 100 (Notable)
Acarape	Brazil	Record daily precipitation	38.2 mm (1.5 in)	55 of 100 (Notable)
Klaarstroom (Pol)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	55 of 100 (Notable)
Kei Road (Pol)	South Africa	Record daily precipitation	50.0 mm (2.0 in)	55 of 100 (Notable)
Contest	South Africa	Record daily precipitation	32.3 mm (1.3 in)	55 of 100 (Notable)
Marshmoor	South Africa	Record daily precipitation	34.0 mm (1.3 in)	55 of 100 (Notable)
Ashwood	United States	Record daily precipitation	61.0 mm (2.4 in)	55 of 100 (Notable)
Cooralya	Australia	Record daily precipitation	55.1 mm (2.2 in)	54 of 100 (Notable)
De Rust (Pol)	South Africa	Record daily precipitation	37.0 mm (1.5 in)	54 of 100 (Notable)
Fountain Head	South Africa	Record daily precipitation	44.5 mm (1.8 in)	54 of 100 (Notable)
Manchester	United States	Record daily precipitation	65.5 mm (2.6 in)	54 of 100 (Notable)
Gage	United States	Record daily precipitation	51.3 mm (2.0 in)	53 of 100 (Notable)
Gascoyne Junction	Australia	Record daily precipitation	54.4 mm (2.1 in)	52 of 100 (Notable)
Mount Narryer	Australia	Record daily precipitation	26.9 mm (1.1 in)	52 of 100 (Notable)
Fazenda Santa Cecilia	Brazil	Record daily precipitation	32.1 mm (1.3 in)	52 of 100 (Notable)
Hogsback (Bos)	South Africa	Record daily precipitation	50.5 mm (2.0 in)	52 of 100 (Notable)
Mill Holme	South Africa	Record daily precipitation	49.5 mm (1.9 in)	52 of 100 (Notable)
Magnitogorsk	Russia	Record daily precipitation	55.2 mm (2.2 in)	51 of 100 (Notable)
Katberg (Bos)	South Africa	Record daily precipitation	35.0 mm (1.4 in)	51 of 100 (Notable)
Tsomo (Pol)	South Africa	Record daily precipitation	40.0 mm (1.6 in)	51 of 100 (Notable)
Buffelsfontein 14	South Africa	Record daily precipitation	27.0 mm (1.1 in)	51 of 100 (Notable)
Beaver City	United States	Record low minimum temperature	4.4 C (39.9 F)	51 of 100 (Notable)
Bidgemia	Australia	Record daily precipitation	46.0 mm (1.8 in)	50 of 100 (Notable)
Fort Beaufort	South Africa	Record daily precipitation	33.0 mm (1.3 in)	50 of 100 (Notable)
Cwencwe (Bos)	South Africa	Record daily precipitation	52.0 mm (2.0 in)	50 of 100 (Notable)
Cofimvaba (Tnk)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	50 of 100 (Notable)
Center	United States	Record daily precipitation	86.4 mm (3.4 in)	50 of 100 (Notable)
Midland Odessa	United States	Record low maximum temperature	22.8 C (73.0 F)	50 of 100 (Notable)
Boolathana	Australia	Record daily precipitation	50.3 mm (2.0 in)	49 of 100 (Notable)
Icem (Usina Marimbondo)	Brazil	Record daily precipitation	25.0 mm (1.0 in)	49 of 100 (Notable)
Usina Gaviao Peixoto (Cpfl)	Brazil	Record daily precipitation	38.8 mm (1.5 in)	49 of 100 (Notable)
Fitzwilliam 2 W	United States	Record daily precipitation	59.7 mm (2.4 in)	49 of 100 (Notable)
Las Vegas 2 NW	United States	Record daily precipitation	39.6 mm (1.6 in)	49 of 100 (Notable)
Woodstock 2 NE	United States	Record daily precipitation	55.9 mm (2.2 in)	49 of 100 (Notable)
Assare	Brazil	Record daily precipitation	25.2 mm (1.0 in)	48 of 100 (Notable)
Wolfridge (Bos)	South Africa	Record daily precipitation	38.0 mm (1.5 in)	48 of 100 (Notable)
Huxley	South Africa	Record daily precipitation	42.7 mm (1.7 in)	48 of 100 (Notable)
Rabula (Bos)	South Africa	Record daily precipitation	51.0 mm (2.0 in)	47 of 100 (Notable)
Lady Frere (Tnk)	South Africa	Record daily precipitation	40.0 mm (1.6 in)	47 of 100 (Notable)
Compton	South Africa	Record daily precipitation	25.5 mm (1.0 in)	47 of 100 (Notable)
Byro	Australia	Record daily precipitation	37.1 mm (1.5 in)	46 of 100 (Notable)
Rooirivier (Bos)	South Africa	Record daily precipitation	33.0 mm (1.3 in)	46 of 100 (Notable)
Castle Rock	United States	Record low maximum temperature	15.6 C (60.1 F)	46 of 100 (Notable)

Counts by Type and Timescale

2,319 records

Records set or tied on 30 July 1971 by type: Highest daily maximum 95, Lowest daily maximum 610, Highest daily minimum 114, Lowest daily minimum 747, Heaviest daily rainfall 752, Deepest snow cover 1.

Records on 30 July 1971 by type
Record type	Records
Highest daily maximum	95
Lowest daily maximum	610
Highest daily minimum	114
Lowest daily minimum	747
Heaviest daily rainfall	752
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 30 July 1971 by timescale: all-time 1, monthly 172, daily 2,146.

How Much Records Were Beaten By

1,962 broken records

Margins by which the 1,962 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 661.0. Ties are not counted.

Top 20 by Significance

30 July 1971

Top 20 records on 30 July 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 July 1971	Harkerville (Bos), ZA	daily rain	72.0 mm (2.8 in)	56.3 mm (2.2 in)	60 years	66 of 100 (Major)
30 July 1971	Brickhouse, AU	daily rain	62.7 mm (2.5 in)	53.8 mm (2.1 in)	64 years	65 of 100 (Major)
30 July 1971	Oudtshoorn, ZA	daily rain	29.2 mm (1.1 in)	15.5 mm (0.6 in)	78 years	64 of 100 (Major)
30 July 1971	Fort Fordyce (Bos), ZA	daily rain	56.0 mm (2.2 in)	46.6 mm (1.8 in)	53 years	63 of 100 (Major)
30 July 1971	Dontsa, ZA	daily rain	60.0 mm (2.4 in)	46.8 mm (1.8 in)	53 years	63 of 100 (Major)
30 July 1971	Isidinge (Bos), ZA	daily rain	67.0 mm (2.6 in)	51.8 mm (2.0 in)	53 years	63 of 100 (Major)
30 July 1971	Buxton (Bos), ZA	daily rain	44.0 mm (1.7 in)	31.0 mm (1.2 in)	53 years	62 of 100 (Major)
30 July 1971	Izeleni (Bos), ZA	daily rain	69.5 mm (2.7 in)	63.1 mm (2.5 in)	53 years	62 of 100 (Major)
30 July 1971	Ventnor, ZA	daily rain	56.0 mm (2.2 in)	41.5 mm (1.6 in)	53 years	62 of 100 (Major)
30 July 1971	Dohne (Sar), ZA	daily rain	43.5 mm (1.7 in)	37.7 mm (1.5 in)	78 years	61 of 100 (Major)
30 July 1971	Laborare, ZA	daily rain	27.0 mm (1.1 in)	27.0 mm (1.1 in)	53 years	59 of 100 (Notable)
30 July 1971	Yardley Chase, ZA	daily rain	30.0 mm (1.2 in)	18.6 mm (0.7 in)	88 years	59 of 100 (Notable)
30 July 1971	Belele, AU	daily rain	25.7 mm (1.0 in)	20.6 mm (0.8 in)	40 years	58 of 100 (Notable)
30 July 1971	Four Corners, AU	daily rain	27.9 mm (1.1 in)	27.9 mm (1.1 in)	50 years	58 of 100 (Notable)
30 July 1971	Jimba Jimba, AU	daily rain	50.8 mm (2.0 in)	45.7 mm (1.8 in)	28 years	56 of 100 (Notable)
30 July 1971	Koeifontein, ZA	daily rain	40.0 mm (1.6 in)	40.0 mm (1.6 in)	44 years	56 of 100 (Notable)
30 July 1971	Nququ (Bos), ZA	daily rain	48.0 mm (1.9 in)	42.2 mm (1.7 in)	42 years	56 of 100 (Notable)
30 July 1971	Ellesmere, ZA	daily rain	29.0 mm (1.1 in)	23.9 mm (0.9 in)	60 years	56 of 100 (Notable)
30 July 1971	Acarape, BR	daily rain	38.2 mm (1.5 in)	36.0 mm (1.4 in)	30 years	55 of 100 (Notable)
30 July 1971	Ico, BR	daily rain	17.4 mm (0.7 in)	17.4 mm (0.7 in)	58 years	20 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

1794 to 1971

Records set or tied on this calendar date in each year from 1794 to 1971. 1971 had 2,319 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 1971-07-30: 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 100	1,961
100 to 200	0
200 to 300	0
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	1