Weather Records on 21 August 1937

762 weather records were set or tied worldwide on 21 August 1937. Highest significance: Ballarat Mount Pleasant Obs., AU.

Key Facts for 21 August 1937

On 21 August 1937, 762 weather records were set or tied at long-record stations worldwide.
283 were record highs and 42 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 13 monthly and 749 daily.
Ballarat Mount Pleasant Obs. set a daily record precipitation of 25.7 mm (1.0 in) on 21 August 1937.
Across 165 earlier years (1800 to 2026) the same calendar date averaged 448 records.

Record Map

762 stations

762 station records on 21 August 1937 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 August 1937: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ballarat Mount Pleasant Obs.	Australia	Record daily precipitation	25.7 mm (1.0 in)	59 of 100 (Notable)
Forbes (Camp Street)	Australia	Record daily precipitation	31.2 mm (1.2 in)	56 of 100 (Notable)
Parkes (Macarthur Street)	Australia	Record daily precipitation	35.6 mm (1.4 in)	56 of 100 (Notable)
Rankins Springs	Australia	Record daily precipitation	38.4 mm (1.5 in)	55 of 100 (Notable)
Yalgogrin North (Roloma)	Australia	Record daily precipitation	31.8 mm (1.3 in)	54 of 100 (Notable)
Cudal Post Office	Australia	Record daily precipitation	41.4 mm (1.6 in)	54 of 100 (Notable)
Molong (King St)	Australia	Record daily precipitation	43.2 mm (1.7 in)	52 of 100 (Notable)
Cargo Post Office	Australia	Record daily precipitation	38.4 mm (1.5 in)	51 of 100 (Notable)
West Wyalong (Tallimbalong)	Australia	Record daily precipitation	27.4 mm (1.1 in)	51 of 100 (Notable)
Zerbst	Germany	Record daily precipitation	44.0 mm (1.7 in)	51 of 100 (Notable)
Borenore Store	Australia	Record daily precipitation	51.8 mm (2.0 in)	50 of 100 (Notable)
Erambie	Australia	Record daily precipitation	38.1 mm (1.5 in)	50 of 100 (Notable)
Walnut	United States	Record daily precipitation	80.8 mm (3.2 in)	50 of 100 (Notable)
Lyndhurst	Australia	Record daily precipitation	43.9 mm (1.7 in)	47 of 100 (Notable)
Orange (McLaughlin St)	Australia	Record daily precipitation	45.7 mm (1.8 in)	47 of 100 (Notable)
Breadalbane (Old Post Office)	Australia	Record daily precipitation	36.8 mm (1.4 in)	47 of 100 (Notable)
Pauls Valley 4 WSW	United States	Record daily precipitation	105.9 mm (4.2 in)	47 of 100 (Notable)
Eugowra Post Office	Australia	Record daily precipitation	34.5 mm (1.4 in)	45 of 100 (Notable)
Goulburn (Kippilaw)	Australia	Record daily precipitation	33.5 mm (1.3 in)	45 of 100 (Notable)
Pyramid Hill	Australia	Record daily precipitation	29.7 mm (1.2 in)	44 of 100 (Notable)
Canowindra (Canowindra Street)	Australia	Record daily precipitation	25.4 mm (1.0 in)	43 of 100 (Notable)
Bungendore (Douglas)	Australia	Record daily precipitation	35.6 mm (1.4 in)	43 of 100 (Notable)
Orange Post Office	Australia	Record daily precipitation	40.6 mm (1.6 in)	42 of 100 (Notable)
Wandary	Australia	Record daily precipitation	31.0 mm (1.2 in)	42 of 100 (Notable)
Darbys Falls (Riverslea)	Australia	Record daily precipitation	32.3 mm (1.3 in)	42 of 100 (Notable)
Groongal (Groongal Station)	Australia	Record daily precipitation	29.0 mm (1.1 in)	42 of 100 (Notable)
Ft Reno	United States	Record daily precipitation	74.2 mm (2.9 in)	42 of 100 (Notable)
Euabalong (Lachlan St)	Australia	Record daily precipitation	26.7 mm (1.1 in)	41 of 100 (Notable)
Bumberry	Australia	Record daily precipitation	39.4 mm (1.6 in)	41 of 100 (Notable)
Wellwood	Australia	Record daily precipitation	45.7 mm (1.8 in)	40 of 100 (Notable)
Bigga (Woolbrook)	Australia	Record daily precipitation	40.1 mm (1.6 in)	40 of 100 (Notable)
Oberlin	United States	Record daily precipitation	57.9 mm (2.3 in)	40 of 100 (Notable)
Cuero	United States	Record daily precipitation	49.5 mm (1.9 in)	40 of 100 (Notable)
Orange (Canobolas Public Schoo	Australia	Record daily precipitation	48.8 mm (1.9 in)	39 of 100 (Notable)
Breadalbane (Sweetwood Lea)	Australia	Record daily precipitation	32.8 mm (1.3 in)	39 of 100 (Notable)
Gunning Rural Supplies	Australia	Record daily precipitation	31.8 mm (1.3 in)	39 of 100 (Notable)
Yarra (Rowe's Lagoon)	Australia	Record daily precipitation	39.6 mm (1.6 in)	39 of 100 (Notable)
Conargo Post Office	Australia	Record daily precipitation	27.4 mm (1.1 in)	39 of 100 (Notable)
Mincha	Australia	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Creswick	Australia	Record daily precipitation	25.9 mm (1.0 in)	39 of 100 (Notable)
Bolagamy	Australia	Record daily precipitation	27.2 mm (1.1 in)	38 of 100 (Notable)
Blayney Post Office	Australia	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Murringo (Windermere)	Australia	Record daily precipitation	35.3 mm (1.4 in)	38 of 100 (Notable)
Lake Cargelligo Airport	Australia	Record daily precipitation	27.7 mm (1.1 in)	38 of 100 (Notable)
Hay (Mulberrygong)	Australia	Record daily precipitation	25.4 mm (1.0 in)	38 of 100 (Notable)
Yandoit (Spring Vale)	Australia	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Guthrie 5S	United States	Record daily precipitation	92.7 mm (3.6 in)	38 of 100 (Notable)
Carcoar	Australia	Record daily precipitation	39.9 mm (1.6 in)	37 of 100 (Notable)
Newstead	Australia	Record daily precipitation	30.7 mm (1.2 in)	37 of 100 (Notable)
Shepherds Creek	Australia	Record daily precipitation	32.8 mm (1.3 in)	36 of 100 (Notable)
Hargraves (Weeroona)	Australia	Record daily precipitation	38.4 mm (1.5 in)	36 of 100 (Notable)
Bungendore (Gidleigh)	Australia	Record daily precipitation	31.5 mm (1.2 in)	36 of 100 (Notable)
Jerilderie (Coree STN)	Australia	Record daily precipitation	27.9 mm (1.1 in)	36 of 100 (Notable)
Carrathool (Gum Creek)	Australia	Record daily precipitation	25.4 mm (1.0 in)	36 of 100 (Notable)
Beales Reservoir	Australia	Record daily precipitation	29.7 mm (1.2 in)	36 of 100 (Notable)
Magdeburg	Germany	Record daily precipitation	27.8 mm (1.1 in)	36 of 100 (Notable)
Tikamgarh	India	Record daily precipitation	119.4 mm (4.7 in)	36 of 100 (Notable)
Bungendore Post Office	Australia	Record daily precipitation	29.0 mm (1.1 in)	35 of 100 (Notable)
Gundaroo (Bairnsdale)	Australia	Record daily precipitation	26.4 mm (1.0 in)	35 of 100 (Notable)
Boorowa Post Office	Australia	Record daily precipitation	26.7 mm (1.1 in)	35 of 100 (Notable)

Counts by Type and Timescale

762 records

Records set or tied on 21 August 1937 by type: Highest daily maximum 134, Lowest daily maximum 29, Highest daily minimum 149, Lowest daily minimum 13, Heaviest daily rainfall 437.

Records on 21 August 1937 by type
Record type	Records
Highest daily maximum	134
Lowest daily maximum	29
Highest daily minimum	149
Lowest daily minimum	13
Heaviest daily rainfall	437
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 August 1937 by timescale: all-time 0, monthly 13, daily 749.

How Much Records Were Beaten By

637 broken records

Margins by which the 637 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 100.3. Ties are not counted.

Top 20 by Significance

21 August 1937

Top 20 records on 21 August 1937 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 August 1937	Ballarat Mount Pleasant Obs., AU	daily rain	25.7 mm (1.0 in)	19.1 mm (0.8 in)	47 years	59 of 100 (Notable)
21 August 1937	Forbes (Camp Street), AU	daily rain	31.2 mm (1.2 in)	22.1 mm (0.9 in)	50 years	56 of 100 (Notable)
21 August 1937	Parkes (Macarthur Street), AU	daily rain	35.6 mm (1.4 in)	28.2 mm (1.1 in)	41 years	56 of 100 (Notable)
21 August 1937	Rankins Springs, AU	daily rain	38.4 mm (1.5 in)	27.5 mm (1.1 in)	42 years	55 of 100 (Notable)
21 August 1937	Yalgogrin North (Roloma), AU	daily rain	31.8 mm (1.3 in)	22.9 mm (0.9 in)	41 years	54 of 100 (Notable)
21 August 1937	Cudal Post Office, AU	daily rain	41.4 mm (1.6 in)	29.5 mm (1.2 in)	30 years	54 of 100 (Notable)
21 August 1937	Molong (King St), AU	daily rain	43.2 mm (1.7 in)	34.3 mm (1.4 in)	24 years	52 of 100 (Notable)
21 August 1937	Cargo Post Office, AU	daily rain	38.4 mm (1.5 in)	25.7 mm (1.0 in)	41 years	51 of 100 (Notable)
21 August 1937	West Wyalong (Tallimbalong), AU	daily rain	27.4 mm (1.1 in)	17.5 mm (0.7 in)	51 years	51 of 100 (Notable)
21 August 1937	Zerbst, DE	daily rain	44.0 mm (1.7 in)	31.5 mm (1.2 in)	23 years	51 of 100 (Notable)
21 August 1937	Borenore Store, AU	daily rain	51.8 mm (2.0 in)	40.4 mm (1.6 in)	24 years	50 of 100 (Notable)
21 August 1937	Erambie, AU	daily rain	38.1 mm (1.5 in)	29.7 mm (1.2 in)	20 years	50 of 100 (Notable)
21 August 1937	Walnut, US	daily rain	80.8 mm (3.2 in)	54.9 mm (2.2 in)	32 years	50 of 100 (Notable)
21 August 1937	Lyndhurst, AU	daily rain	43.9 mm (1.7 in)	28.4 mm (1.1 in)	24 years	47 of 100 (Notable)
21 August 1937	Orange (McLaughlin St), AU	daily rain	45.7 mm (1.8 in)	28.4 mm (1.1 in)	41 years	47 of 100 (Notable)
21 August 1937	Breadalbane (Old Post Office), AU	daily rain	36.8 mm (1.4 in)	24.6 mm (1.0 in)	24 years	47 of 100 (Notable)
21 August 1937	Pauls Valley 4 WSW, US	daily rain	105.9 mm (4.2 in)	100.3 mm (3.9 in)	14 years	47 of 100 (Notable)
21 August 1937	Eugowra Post Office, AU	daily rain	34.5 mm (1.4 in)	25.9 mm (1.0 in)	8 years	45 of 100 (Notable)
21 August 1937	Goulburn (Kippilaw), AU	daily rain	33.5 mm (1.3 in)	24.6 mm (1.0 in)	24 years	45 of 100 (Notable)
21 August 1937	Pyramid Hill, AU	daily rain	29.7 mm (1.2 in)	17.5 mm (0.7 in)	44 years	44 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 1937

Records set or tied on this calendar date in each year from 1800 to 1937. 1937 had 762 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 1937-08-21: 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 2026-10-14 (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 20	583
20 to 40	46
40 to 60	6
60 to 80	1
80 to 100	0
100 to 120	1