Weather Records on 20 August 1924

132 weather records were set or tied worldwide on 20 August 1924. Highest significance: Galva, US.

Key Facts for 20 August 1924

On 20 August 1924, 132 weather records were set or tied at long-record stations worldwide.
51 were record highs and 46 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 2 monthly and 129 daily.
Galva set an all-time record daily precipitation of 232.4 mm (9.1 in) on 20 August 1924.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 457 records.

Record Map

132 stations

132 station records on 20 August 1924 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 1924: highest significance records shown on the map
Station	Country	Type	Value	Significance
Galva	United States	Record daily precipitation	232.4 mm (9.1 in)	69 of 100 (Major)
Bloomington Normal	United States	Record daily precipitation	120.4 mm (4.7 in)	48 of 100 (Notable)
Battleford	Canada	Record daily precipitation	43.7 mm (1.7 in)	46 of 100 (Notable)
Montevideo 1SW	United States	Record daily precipitation	54.6 mm (2.1 in)	36 of 100 (Notable)
Zagreb-Gric	Croatia	Record daily precipitation	29.7 mm (1.2 in)	34 of 100 (Routine)
Den Helder-1	Netherlands	Record daily precipitation	25.7 mm (1.0 in)	34 of 100 (Routine)
Heber	United States	Record low maximum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Armagh	United Kingdom	Record low maximum temperature	13.4 C (56.1 F)	26 of 100 (Routine)
Bellefontaine	United States	Record daily precipitation	25.4 mm (1.0 in)	24 of 100 (Routine)
Wellsburg Wtr Trmt Pl	United States	Record daily precipitation	28.2 mm (1.1 in)	22 of 100 (Routine)
Montreal McGill	Canada	Record low maximum temperature	16.1 C (61.0 F)	21 of 100 (Routine)
Karesuando	Sweden	Record high minimum temperature	13.0 C (55.4 F)	21 of 100 (Routine)
Columbus	United States	Record daily precipitation	66.0 mm (2.6 in)	21 of 100 (Routine)
New Martinsville 4 NNE	United States	Record daily precipitation	27.9 mm (1.1 in)	21 of 100 (Routine)
Logan Utah St UNIV	United States	Record low maximum temperature	20.0 C (68.0 F)	20 of 100 (Routine)
Paris Stp	United States	Record daily precipitation	64.5 mm (2.5 in)	19 of 100 (Routine)
Qu'appelle	Canada	Record daily precipitation	20.3 mm (0.8 in)	18 of 100 (Routine)
Regina Int'l A	Canada	Record daily precipitation	19.1 mm (0.8 in)	18 of 100 (Routine)
Chatham	Canada	Record low minimum temperature	5.6 C (42.1 F)	18 of 100 (Routine)
Indian Head Cda	Canada	Record daily precipitation	26.4 mm (1.0 in)	17 of 100 (Routine)
Rome	United States	Record high maximum temperature	38.3 C (100.9 F)	17 of 100 (Routine)
Kingswood	Australia	Record daily precipitation	12.7 mm (0.5 in)	16 of 100 (Routine)
Husum	Germany	Record low minimum temperature	8.2 C (46.8 F)	16 of 100 (Routine)
Butlerville 2 WNW	United States	Record daily precipitation	58.2 mm (2.3 in)	16 of 100 (Routine)
Port Arthur	Canada	Record low maximum temperature	15.6 C (60.1 F)	15 of 100 (Routine)
Ottawa	Canada	Record low maximum temperature	16.1 C (61.0 F)	15 of 100 (Routine)
Cottbus	Germany	Record low minimum temperature	7.0 C (44.6 F)	15 of 100 (Routine)
Storrs	United States	Record low maximum temperature	18.3 C (64.9 F)	15 of 100 (Routine)
Tarpon Spgs Sewage Plt	United States	Record high maximum temperature	35.6 C (96.1 F)	15 of 100 (Routine)
Athens	United States	Record high maximum temperature	36.1 C (97.0 F)	15 of 100 (Routine)
Bozeman Montana State UNIV	United States	Record low maximum temperature	17.2 C (63.0 F)	15 of 100 (Routine)
Adelaide West Terrace	Australia	Record high minimum temperature	14.1 C (57.4 F)	14 of 100 (Routine)
Renfrew	Canada	Record low maximum temperature	16.1 C (61.0 F)	14 of 100 (Routine)
Holmogadd A	Sweden	Record daily precipitation	20.0 mm (0.8 in)	14 of 100 (Routine)
Dixon Wwtp	United States	Record daily precipitation	39.9 mm (1.6 in)	14 of 100 (Routine)
Millerton	United States	Record high minimum temperature	23.3 C (73.9 F)	14 of 100 (Routine)
Joseph	United States	Record low maximum temperature	15.0 C (59.0 F)	14 of 100 (Routine)
El Paso	United States	Record high minimum temperature	24.4 C (75.9 F)	14 of 100 (Routine)
Clanton	United States	Record high maximum temperature	37.2 C (99.0 F)	13 of 100 (Routine)
San Bernardino F S 226	United States	Record low maximum temperature	26.1 C (79.0 F)	13 of 100 (Routine)
Marshallville 6 S	United States	Record high maximum temperature	38.3 C (100.9 F)	13 of 100 (Routine)
Madison Sewage Plt	United States	Record daily precipitation	41.9 mm (1.6 in)	13 of 100 (Routine)
Scottsburg	United States	Record daily precipitation	55.9 mm (2.2 in)	13 of 100 (Routine)
Macksville 8 NNE	United States	Record high minimum temperature	22.8 C (73.0 F)	13 of 100 (Routine)
Kalamazoo State Hospital	United States	Record daily precipitation	35.6 mm (1.4 in)	13 of 100 (Routine)
Hanover	United States	Record low maximum temperature	17.2 C (63.0 F)	13 of 100 (Routine)
Marshall	United States	Record high minimum temperature	25.0 C (77.0 F)	13 of 100 (Routine)
Saentis	Switzerland	Record low minimum temperature	-3.7 C (25.3 F)	12 of 100 (Routine)
Horton	United States	Record high minimum temperature	23.3 C (73.9 F)	12 of 100 (Routine)
Farmington 3NW	United States	Record low maximum temperature	22.8 C (73.0 F)	12 of 100 (Routine)
Birch Tree	United States	Record high minimum temperature	22.8 C (73.0 F)	12 of 100 (Routine)
Beatrice	United States	Record high maximum temperature	39.4 C (102.9 F)	12 of 100 (Routine)
Lycippus 1 E	United States	Record daily precipitation	14.7 mm (0.6 in)	12 of 100 (Routine)
Pullman Exp STN	United States	Record low maximum temperature	13.9 C (57.0 F)	12 of 100 (Routine)
Port Lincoln	Australia	Record high maximum temperature	23.2 C (73.8 F)	11 of 100 (Routine)
Pine Bluff	United States	Record high minimum temperature	24.4 C (75.9 F)	11 of 100 (Routine)
Marengo	United States	Record daily precipitation	50.8 mm (2.0 in)	11 of 100 (Routine)
Burlington	United States	Record high minimum temperature	22.8 C (73.0 F)	11 of 100 (Routine)
Old Mission	United States	Record low maximum temperature	18.3 C (64.9 F)	11 of 100 (Routine)
Leech Lake	United States	Record daily precipitation	35.1 mm (1.4 in)	11 of 100 (Routine)

Counts by Type and Timescale

132 records

Records set or tied on 20 August 1924 by type: Highest daily maximum 18, Lowest daily maximum 36, Highest daily minimum 33, Lowest daily minimum 10, Heaviest daily rainfall 35.

Records on 20 August 1924 by type
Record type	Records
Highest daily maximum	18
Lowest daily maximum	36
Highest daily minimum	33
Lowest daily minimum	10
Heaviest daily rainfall	35
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 1924 by timescale: all-time 1, monthly 2, daily 129.

How Much Records Were Beaten By

93 broken records

Margins by which the 93 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.4. Ties are not counted.

Top 20 by Significance

20 August 1924

Top 20 records on 20 August 1924 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 1924	Galva, US	all-time rain	232.4 mm (9.1 in)	102.4 mm (4.0 in)	22 years	69 of 100 (Major)
20 August 1924	Bloomington Normal, US	daily rain	120.4 mm (4.7 in)	76.2 mm (3.0 in)	17 years	48 of 100 (Notable)
20 August 1924	Battleford, CA	daily rain	43.7 mm (1.7 in)	31.8 mm (1.3 in)	13 years	46 of 100 (Notable)
20 August 1924	Montevideo 1SW, US	daily rain	54.6 mm (2.1 in)	30.7 mm (1.2 in)	14 years	36 of 100 (Notable)
20 August 1924	Zagreb-Gric, HR	daily rain	29.7 mm (1.2 in)	20.3 mm (0.8 in)	26 years	34 of 100 (Routine)
20 August 1924	Den Helder-1, NL	daily rain	25.7 mm (1.0 in)	5.8 mm (0.23 in)	65 years	34 of 100 (Routine)
20 August 1924	Heber, US	daily low max	18.3 C (64.9 F)	6.1 C (11.0 F)	27 years	31 of 100 (Routine)
20 August 1924	Armagh, GB	daily low max	13.4 C (56.1 F)	0.9 C (1.6 F)	50 years	26 of 100 (Routine)
20 August 1924	Bellefontaine, US	daily rain	25.4 mm (1.0 in)	16.5 mm (0.6 in)	24 years	24 of 100 (Routine)
20 August 1924	Wellsburg Wtr Trmt Pl, US	daily rain	28.2 mm (1.1 in)	14.0 mm (0.6 in)	22 years	22 of 100 (Routine)
20 August 1924	Montreal McGill, CA	daily low max	16.1 C (61.0 F)	0.6 C (1.1 F)	52 years	21 of 100 (Routine)
20 August 1924	Karesuando, SE	daily high min	13.0 C (55.4 F)	2.0 C (3.6 F)	41 years	21 of 100 (Routine)
20 August 1924	Columbus, US	monthly rain	66.0 mm (2.6 in)	4.5 mm (0.18 in)	16 years	21 of 100 (Routine)
20 August 1924	New Martinsville 4 NNE, US	daily rain	27.9 mm (1.1 in)	14.2 mm (0.6 in)	20 years	21 of 100 (Routine)
20 August 1924	Logan Utah St UNIV, US	daily low max	20.0 C (68.0 F)	2.8 C (5.0 F)	27 years	20 of 100 (Routine)
20 August 1924	Paris Stp, US	monthly rain	64.5 mm (2.5 in)	8.6 mm (0.34 in)	1 year	19 of 100 (Routine)
20 August 1924	Qu'appelle, CA	daily rain	20.3 mm (0.8 in)	3.0 mm (0.12 in)	36 years	18 of 100 (Routine)
20 August 1924	Regina Int'l A, CA	daily rain	19.1 mm (0.8 in)	13.0 mm (0.5 in)	1 year	18 of 100 (Routine)
20 August 1924	Chatham, CA	daily low min	5.6 C (42.1 F)	0.5 C (0.9 F)	41 years	18 of 100 (Routine)
20 August 1924	Indian Head Cda, CA	daily rain	26.4 mm (1.0 in)	10.1 mm (0.4 in)	13 years	17 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

1797 to 1924

Records set or tied on this calendar date in each year from 1797 to 1924. 1924 had 132 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 1924-08-20: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	88
20 to 40	3
40 to 60	0
60 to 80	1
80 to 100	0
100 to 120	1