Weather Records on 21 July 1947

795 weather records were set or tied worldwide on 21 July 1947. Highest significance: Archer Point Lighthouse, AU.

Key Facts for 21 July 1947

On 21 July 1947, 795 weather records were set or tied at long-record stations worldwide.
55 were record highs and 661 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 789 daily.
Archer Point Lighthouse set a daily record precipitation of 31.2 mm (1.2 in) on 21 July 1947.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 465 records.

Record Map

795 stations

795 station records on 21 July 1947 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1947: highest significance records shown on the map
Station	Country	Type	Value	Significance
Archer Point Lighthouse	Australia	Record daily precipitation	31.2 mm (1.2 in)	51 of 100 (Notable)
Haveri	India	Record daily precipitation	58.4 mm (2.3 in)	50 of 100 (Notable)
Fanny Cove	Australia	Record daily precipitation	41.4 mm (1.6 in)	46 of 100 (Notable)
Jahanabad	India	Record daily precipitation	126.7 mm (5.0 in)	46 of 100 (Notable)
Burdwan	India	Record daily precipitation	120.7 mm (4.8 in)	46 of 100 (Notable)
Chugwater	United States	Record daily precipitation	25.4 mm (1.0 in)	37 of 100 (Notable)
Angola	United States	Record low minimum temperature	17.2 C (63.0 F)	36 of 100 (Notable)
Kadayam	India	Record daily precipitation	54.9 mm (2.2 in)	35 of 100 (Notable)
Lodgepole	United States	Record daily precipitation	51.8 mm (2.0 in)	35 of 100 (Notable)
Clinton Forestry HQ	United States	Record low minimum temperature	14.4 C (57.9 F)	34 of 100 (Routine)
Bay Saint Louis	United States	Record low minimum temperature	18.3 C (64.9 F)	34 of 100 (Routine)
Havana	United States	Record low maximum temperature	23.3 C (73.9 F)	33 of 100 (Routine)
Hood Rs	United States	Record daily precipitation	25.7 mm (1.0 in)	32 of 100 (Routine)
Tallapoosa 2 N	United States	Record low minimum temperature	10.6 C (51.1 F)	31 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record low minimum temperature	5.0 C (41.0 F)	31 of 100 (Routine)
Biloxi	United States	Record low minimum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
St Louis Eads Brg	United States	Record low maximum temperature	22.8 C (73.0 F)	31 of 100 (Routine)
Baindur	India	Record daily precipitation	190.5 mm (7.5 in)	30 of 100 (Routine)
Garden Valley	United States	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Northwood	United States	Record low maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Sandy Lake Dam Libby	United States	Record low minimum temperature	3.3 C (37.9 F)	30 of 100 (Routine)
Leakesville 6 WSW	United States	Record low minimum temperature	16.1 C (61.0 F)	30 of 100 (Routine)
Millport 4 NE	United States	Record low maximum temperature	17.8 C (64.0 F)	30 of 100 (Routine)
Mogumber	Australia	Record daily precipitation	36.3 mm (1.4 in)	29 of 100 (Routine)
Charleston	United States	Record low maximum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
Monmouth	United States	Record low maximum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Hopkinsville	United States	Record low minimum temperature	10.6 C (51.1 F)	29 of 100 (Routine)
Ashland	United States	Record low maximum temperature	19.4 C (66.9 F)	29 of 100 (Routine)
Huron Rgnl AP	United States	Record low minimum temperature	6.1 C (43.0 F)	29 of 100 (Routine)
Minnedosa	Canada	Record low minimum temperature	2.8 C (37.0 F)	28 of 100 (Routine)
Sagar	India	Record daily precipitation	154.2 mm (6.1 in)	28 of 100 (Routine)
Minonk	United States	Record low maximum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Minneapolis Wb Dwtn	United States	Record low minimum temperature	9.4 C (48.9 F)	28 of 100 (Routine)
Marion	United States	Record low minimum temperature	5.6 C (42.1 F)	28 of 100 (Routine)
Creston	United States	Record low maximum temperature	17.2 C (63.0 F)	28 of 100 (Routine)
Greenville	United States	Record low maximum temperature	23.9 C (75.0 F)	27 of 100 (Routine)
Northwood	United States	Record low minimum temperature	7.2 C (45.0 F)	27 of 100 (Routine)
Williamsburg 1E	United States	Record low maximum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Donaldsonville 4 SW	United States	Record low minimum temperature	19.4 C (66.9 F)	27 of 100 (Routine)
Kennecott	United States	Record high maximum temperature	25.6 C (78.1 F)	27 of 100 (Routine)
Saginaw Mbs Intl AP	United States	Record low maximum temperature	18.9 C (66.0 F)	27 of 100 (Routine)
Green Bay	United States	Record low minimum temperature	8.3 C (46.9 F)	27 of 100 (Routine)
Rockingham Post Office	Australia	Record daily precipitation	46.0 mm (1.8 in)	26 of 100 (Routine)
Bloomington Normal	United States	Record low maximum temperature	22.8 C (73.0 F)	26 of 100 (Routine)
Pontiac	United States	Record low maximum temperature	22.2 C (72.0 F)	26 of 100 (Routine)
Howe	United States	Record low maximum temperature	21.7 C (71.1 F)	26 of 100 (Routine)
Franklin 3 NW	United States	Record low minimum temperature	19.4 C (66.9 F)	26 of 100 (Routine)
Port Gibson 1 NE	United States	Record low minimum temperature	15.6 C (60.1 F)	26 of 100 (Routine)
Brunswick	United States	Record low maximum temperature	23.3 C (73.9 F)	26 of 100 (Routine)
Clayoquot	Canada	Record high minimum temperature	14.4 C (57.9 F)	25 of 100 (Routine)
Hailakundi India	India	Record daily precipitation	80.0 mm (3.1 in)	25 of 100 (Routine)
Banda	India	Record daily precipitation	110.7 mm (4.4 in)	25 of 100 (Routine)
Jhansi	India	Record daily precipitation	102.1 mm (4.0 in)	25 of 100 (Routine)
Griggsville	United States	Record low maximum temperature	23.9 C (75.0 F)	25 of 100 (Routine)
Rochester	United States	Record low maximum temperature	22.2 C (72.0 F)	25 of 100 (Routine)
Veedersburg	United States	Record low maximum temperature	22.8 C (73.0 F)	25 of 100 (Routine)
Ames 3 SW	United States	Record low maximum temperature	22.2 C (72.0 F)	25 of 100 (Routine)
Independence	United States	Record low maximum temperature	21.1 C (70.0 F)	25 of 100 (Routine)
Marshalltown	United States	Record low maximum temperature	23.3 C (73.9 F)	25 of 100 (Routine)
Princeton	United States	Record low maximum temperature	24.4 C (75.9 F)	25 of 100 (Routine)

Counts by Type and Timescale

795 records

Records set or tied on 21 July 1947 by type: Highest daily maximum 20, Lowest daily maximum 414, Highest daily minimum 35, Lowest daily minimum 247, Heaviest daily rainfall 79.

Records on 21 July 1947 by type
Record type	Records
Highest daily maximum	20
Lowest daily maximum	414
Highest daily minimum	35
Lowest daily minimum	247
Heaviest daily rainfall	79
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1947 by timescale: all-time 0, monthly 6, daily 789.

How Much Records Were Beaten By

632 broken records

Margins by which the 632 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.7. Ties are not counted.

Top 20 by Significance

21 July 1947

Top 20 records on 21 July 1947 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1947	Archer Point Lighthouse, AU	daily rain	31.2 mm (1.2 in)	22.6 mm (0.9 in)	26 years	51 of 100 (Notable)
21 July 1947	Haveri, IN	daily rain	58.4 mm (2.3 in)	35.5 mm (1.4 in)	34 years	50 of 100 (Notable)
21 July 1947	Fanny Cove, AU	daily rain	41.4 mm (1.6 in)	28.7 mm (1.1 in)	24 years	46 of 100 (Notable)
21 July 1947	Jahanabad, IN	daily rain	126.7 mm (5.0 in)	70.3 mm (2.8 in)	26 years	46 of 100 (Notable)
21 July 1947	Burdwan, IN	daily rain	120.7 mm (4.8 in)	71.7 mm (2.8 in)	42 years	46 of 100 (Notable)
21 July 1947	Chugwater, US	daily rain	25.4 mm (1.0 in)	18.3 mm (0.7 in)	21 years	37 of 100 (Notable)
21 July 1947	Angola, US	daily low min	17.2 C (63.0 F)	3.9 C (7.0 F)	32 years	36 of 100 (Notable)
21 July 1947	Kadayam, IN	monthly rain	54.9 mm (2.2 in)	6.6 mm (0.26 in)	36 years	35 of 100 (Notable)
21 July 1947	Lodgepole, US	daily rain	51.8 mm (2.0 in)	20.0 mm (0.8 in)	41 years	35 of 100 (Notable)
21 July 1947	Clinton Forestry HQ, US	daily low min	14.4 C (57.9 F)	2.8 C (5.0 F)	52 years	34 of 100 (Routine)
21 July 1947	Bay Saint Louis, US	daily low min	18.3 C (64.9 F)	2.8 C (5.0 F)	42 years	34 of 100 (Routine)
21 July 1947	Havana, US	daily low max	23.3 C (73.9 F)	5.0 C (9.0 F)	52 years	33 of 100 (Routine)
21 July 1947	Hood Rs, US	daily rain	25.7 mm (1.0 in)	13.0 mm (0.5 in)	18 years	32 of 100 (Routine)
21 July 1947	Tallapoosa 2 N, US	daily low min	10.6 C (51.1 F)	3.3 C (5.9 F)	36 years	31 of 100 (Routine)
21 July 1947	Morris W Cntrl Rsch & Outreach, US	daily low min	5.0 C (41.0 F)	3.9 C (7.0 F)	51 years	31 of 100 (Routine)
21 July 1947	Biloxi, US	daily low min	18.3 C (64.9 F)	2.3 C (4.1 F)	44 years	31 of 100 (Routine)
21 July 1947	St Louis Eads Brg, US	daily low max	22.8 C (73.0 F)	3.9 C (7.0 F)	50 years	31 of 100 (Routine)
21 July 1947	Baindur, IN	daily rain	190.5 mm (7.5 in)	56.1 mm (2.2 in)	40 years	30 of 100 (Routine)
21 July 1947	Garden Valley, US	daily high min	20.0 C (68.0 F)	3.3 C (5.9 F)	53 years	30 of 100 (Routine)
21 July 1947	Northwood, US	daily low max	19.4 C (66.9 F)	3.9 C (7.0 F)	50 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

1794 to 1947

Records set or tied on this calendar date in each year from 1794 to 1947. 1947 had 795 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 1947-07-21: 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	602
10 to 20	13
20 to 30	7
30 to 40	3
40 to 50	3
50 to 60	2
60 to 70	0
70 to 80	2