Weather Records on 20 July 1921

55 weather records were set or tied worldwide on 20 July 1921. Highest significance: Sarna, SE.

Key Facts for 20 July 1921

On 20 July 1921, 55 weather records were set or tied at long-record stations worldwide.
28 were record highs and 7 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 1 monthly and 53 daily.
Sarna set a daily record precipitation of 32.0 mm (1.3 in) on 20 July 1921.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 462 records.

Record Map

55 stations

55 station records on 20 July 1921 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1921: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sarna	Sweden	Record daily precipitation	32.0 mm (1.3 in)	46 of 100 (Notable)
Bryson City 2	United States	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Medicine Hat A	Canada	Record high minimum temperature	25.6 C (78.1 F)	32 of 100 (Routine)
Officer (Jesmond Dene)	Australia	Record daily precipitation	25.7 mm (1.0 in)	29 of 100 (Routine)
Cap Chat	Canada	Record daily precipitation	26.7 mm (1.1 in)	27 of 100 (Routine)
Chattanooga Wb City	United States	Record low maximum temperature	23.9 C (75.0 F)	26 of 100 (Routine)
Lucknow	Canada	Record daily precipitation	37.6 mm (1.5 in)	22 of 100 (Routine)
Yarmouth	Canada	Record high minimum temperature	15.6 C (60.1 F)	20 of 100 (Routine)
Chatham	Canada	Record daily precipitation	31.2 mm (1.2 in)	19 of 100 (Routine)
Jonkoping	Sweden	Record high minimum temperature	17.0 C (62.6 F)	18 of 100 (Routine)
Chattanooga Wb City	United States	Record daily precipitation	28.4 mm (1.1 in)	18 of 100 (Routine)
Point Escuminac	Canada	Record daily precipitation	26.2 mm (1.0 in)	17 of 100 (Routine)
Bjuraker	Sweden	Record low maximum temperature	13.9 C (57.0 F)	17 of 100 (Routine)
Malung	Sweden	Record daily precipitation	21.1 mm (0.8 in)	15 of 100 (Routine)
Tunis	Tunisia	Record high minimum temperature	26.0 C (78.8 F)	15 of 100 (Routine)
Sidi-Bel-Abbes	Algeria	Record low maximum temperature	29.0 C (84.2 F)	14 of 100 (Routine)
Battleford	Canada	Record high maximum temperature	34.4 C (93.9 F)	14 of 100 (Routine)
Tranebjerg	Denmark	Record high maximum temperature	28.2 C (82.8 F)	14 of 100 (Routine)
Asheville	United States	Record daily precipitation	50.8 mm (2.0 in)	14 of 100 (Routine)
Swift Current	Canada	Record high maximum temperature	37.2 C (99.0 F)	13 of 100 (Routine)
Mena	United States	Record daily precipitation	34.3 mm (1.4 in)	13 of 100 (Routine)
Houston Wb City	United States	Record low maximum temperature	30.0 C (86.0 F)	13 of 100 (Routine)
Edmonton	Canada	Record high maximum temperature	30.6 C (87.1 F)	12 of 100 (Routine)
Swift Current	Canada	Record high minimum temperature	17.8 C (64.0 F)	12 of 100 (Routine)
Cet Central England	United Kingdom	Record high minimum temperature	16.7 C (62.1 F)	12 of 100 (Routine)
Hingham (1)	United States	Record daily precipitation	23.1 mm (0.9 in)	12 of 100 (Routine)
Calgary Int'l A	Canada	Record high maximum temperature	35.0 C (95.0 F)	11 of 100 (Routine)
Fort Chipewyan	Canada	Record high maximum temperature	30.6 C (87.1 F)	11 of 100 (Routine)
Prince Albert	Canada	Record high minimum temperature	15.6 C (60.1 F)	11 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record high minimum temperature	18.4 C (65.1 F)	11 of 100 (Routine)
Clontarf	Canada	Record daily precipitation	16.0 mm (0.6 in)	10 of 100 (Routine)
Parnu	Estonia	Record low minimum temperature	5.2 C (41.4 F)	10 of 100 (Routine)
Sfax El-Maou	Tunisia	Record low minimum temperature	17.0 C (62.6 F)	10 of 100 (Routine)
Battleford	Canada	Record high minimum temperature	16.7 C (62.1 F)	9 of 100 (Routine)
Oxford	United Kingdom	Record high minimum temperature	17.2 C (63.0 F)	9 of 100 (Routine)
Medicine Hat A	Canada	Record high maximum temperature	38.3 C (100.9 F)	6 of 100 (Routine)
Muenster	Germany	Record high minimum temperature	16.8 C (62.2 F)	6 of 100 (Routine)
Husum	Germany	Record high minimum temperature	17.2 C (63.0 F)	6 of 100 (Routine)
Nyngan (Merryanbone)	Australia	Record daily precipitation	15.0 mm (0.6 in)	5 of 100 (Routine)
Fort Chipewyan	Canada	Record high minimum temperature	17.8 C (64.0 F)	5 of 100 (Routine)
Anticosti Heath Point	Canada	Record daily precipitation	10.9 mm (0.4 in)	5 of 100 (Routine)
Astoria	United States	Record daily precipitation	1.0 mm (0.04 in)	5 of 100 (Routine)
Johnsonville	United States	Record daily precipitation	36.1 mm (1.4 in)	5 of 100 (Routine)
Indian Head Cda	Canada	Record high minimum temperature	20.0 C (68.0 F)	4 of 100 (Routine)
Yalta	Ukraine	Record daily precipitation	2.6 mm (0.10 in)	4 of 100 (Routine)
Cape May 2 NW	United States	Record high minimum temperature	23.3 C (73.9 F)	4 of 100 (Routine)
Rogersville 1 NE	United States	Record daily precipitation	12.2 mm (0.5 in)	4 of 100 (Routine)
Tomsk	Russia	Record high minimum temperature	17.7 C (63.9 F)	3 of 100 (Routine)
Pine Bluff	United States	Record high minimum temperature	23.9 C (75.0 F)	3 of 100 (Routine)
Atlantic City Marina	United States	Record high minimum temperature	22.8 C (73.0 F)	2 of 100 (Routine)
Coen Post Office	Australia	Record daily precipitation	2.5 mm (0.10 in)	1 of 100 (Routine)
New Westminster	Canada	Record low maximum temperature	18.3 C (64.9 F)	1 of 100 (Routine)
Banff	Canada	Record high maximum temperature	30.6 C (87.1 F)	1 of 100 (Routine)
Tampa	United States	Record high minimum temperature	25.0 C (77.0 F)	1 of 100 (Routine)
Moorestown 4 E	United States	Record high minimum temperature	22.2 C (72.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

55 records

Records set or tied on 20 July 1921 by type: Highest daily maximum 8, Lowest daily maximum 5, Highest daily minimum 20, Lowest daily minimum 2, Heaviest daily rainfall 20.

Records on 20 July 1921 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	5
Highest daily minimum	20
Lowest daily minimum	2
Heaviest daily rainfall	20
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1921 by timescale: all-time 1, monthly 1, daily 53.

How Much Records Were Beaten By

45 broken records

Margins by which the 45 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 30.5. Ties are not counted.

Top 20 by Significance

20 July 1921

Top 20 records on 20 July 1921 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1921	Sarna, SE	daily rain	32.0 mm (1.3 in)	19.4 mm (0.8 in)	35 years	46 of 100 (Notable)
20 July 1921	Bryson City 2, US	daily rain	50.8 mm (2.0 in)	30.5 mm (1.2 in)	27 years	40 of 100 (Notable)
20 July 1921	Medicine Hat A, CA	all-time high min	25.6 C (78.1 F)	0.6 C (1.1 F)	27 years	32 of 100 (Routine)
20 July 1921	Officer (Jesmond Dene), AU	daily rain	25.7 mm (1.0 in)	11.0 mm (0.4 in)	32 years	29 of 100 (Routine)
20 July 1921	Cap Chat, CA	daily rain	26.7 mm (1.1 in)	16.5 mm (0.6 in)	31 years	27 of 100 (Routine)
20 July 1921	Chattanooga Wb City, US	daily low max	23.9 C (75.0 F)	3.3 C (5.9 F)	38 years	26 of 100 (Routine)
20 July 1921	Lucknow, CA	daily rain	37.6 mm (1.5 in)	14.7 mm (0.6 in)	19 years	22 of 100 (Routine)
20 July 1921	Yarmouth, CA	daily high min	15.6 C (60.1 F)	1.7 C (3.1 F)	25 years	20 of 100 (Routine)
20 July 1921	Chatham, CA	daily rain	31.2 mm (1.2 in)	14.4 mm (0.6 in)	0 years	19 of 100 (Routine)
20 July 1921	Jonkoping, SE	daily high min	17.0 C (62.6 F)	1.0 C (1.8 F)	35 years	18 of 100 (Routine)
20 July 1921	Chattanooga Wb City, US	daily rain	28.4 mm (1.1 in)	6.3 mm (0.25 in)	31 years	18 of 100 (Routine)
20 July 1921	Point Escuminac, CA	daily rain	26.2 mm (1.0 in)	9.4 mm (0.37 in)	16 years	17 of 100 (Routine)
20 July 1921	Bjuraker, SE	daily low max	13.9 C (57.0 F)	1.1 C (2.0 F)	37 years	17 of 100 (Routine)
20 July 1921	Malung, SE	daily rain	21.1 mm (0.8 in)	0.1 mm (0.00 in)	36 years	15 of 100 (Routine)
20 July 1921	Tunis, TN	daily high min	26.0 C (78.8 F)	1.0 C (1.8 F)	31 years	15 of 100 (Routine)
20 July 1921	Sidi-Bel-Abbes, DZ	daily low max	29.0 C (84.2 F)	2.0 C (3.6 F)	18 years	14 of 100 (Routine)
20 July 1921	Battleford, CA	daily high max	34.4 C (93.9 F)	1.1 C (2.0 F)	26 years	14 of 100 (Routine)
20 July 1921	Tranebjerg, DK	daily high max	28.2 C (82.8 F)	1.2 C (2.2 F)	20 years	14 of 100 (Routine)
20 July 1921	Asheville, US	daily rain	50.8 mm (2.0 in)	3.0 mm (0.12 in)	29 years	14 of 100 (Routine)
20 July 1921	Swift Current, CA	daily high max	37.2 C (99.0 F)	1.1 C (2.0 F)	27 years	13 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

1809 to 1921

Records set or tied on this calendar date in each year from 1809 to 1921. 1921 had 55 records.

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

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 1921-07-20: 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 5	36
5 to 10	3
10 to 15	3
15 to 20	2
20 to 25	0
25 to 30	0
30 to 35	1