Weather Records on 21 July 1928

205 weather records were set or tied worldwide on 21 July 1928. Highest significance: Cavan, AU.

Key Facts for 21 July 1928

On 21 July 1928, 205 weather records were set or tied at long-record stations worldwide.
75 were record highs and 59 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 1 monthly and 203 daily.
Cavan set a daily record precipitation of 47.0 mm (1.9 in) on 21 July 1928.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 468 records.

Record Map

205 stations

205 station records on 21 July 1928 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1928: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cavan	Australia	Record daily precipitation	47.0 mm (1.9 in)	55 of 100 (Notable)
Atlantic 1 NE	United States	Record daily precipitation	47.2 mm (1.9 in)	53 of 100 (Notable)
Lenox	United States	Record daily precipitation	63.5 mm (2.5 in)	47 of 100 (Notable)
Lynnville 4 SSW	United States	Record daily precipitation	85.1 mm (3.4 in)	46 of 100 (Notable)
Imperial	United States	Record daily precipitation	53.3 mm (2.1 in)	45 of 100 (Notable)
Mt Ayr	United States	Record daily precipitation	109.2 mm (4.3 in)	43 of 100 (Notable)
Guthrie Ctr	United States	Record daily precipitation	48.8 mm (1.9 in)	42 of 100 (Notable)
Oskaloosa	United States	Record daily precipitation	42.9 mm (1.7 in)	42 of 100 (Notable)
Afton	United States	Record daily precipitation	59.7 mm (2.4 in)	38 of 100 (Notable)
Joliet	United States	Record daily precipitation	34.3 mm (1.4 in)	37 of 100 (Notable)
Ottumwa 1 WSW	United States	Record daily precipitation	63.2 mm (2.5 in)	34 of 100 (Routine)
Le Mars	United States	Record daily precipitation	57.2 mm (2.3 in)	33 of 100 (Routine)
Grant City	United States	Record daily precipitation	76.2 mm (3.0 in)	33 of 100 (Routine)
Unionville	United States	Record daily precipitation	54.6 mm (2.1 in)	32 of 100 (Routine)
Hartington	United States	Record daily precipitation	52.1 mm (2.1 in)	30 of 100 (Routine)
Chattanooga Wb City	United States	Record daily precipitation	54.1 mm (2.1 in)	30 of 100 (Routine)
Harnosand	Sweden	Record low minimum temperature	3.5 C (38.3 F)	29 of 100 (Routine)
Alexandria	United States	Record daily precipitation	40.6 mm (1.6 in)	29 of 100 (Routine)
Corning	United States	Record daily precipitation	47.0 mm (1.9 in)	28 of 100 (Routine)
Hvar	Croatia	Record high maximum temperature	34.0 C (93.2 F)	27 of 100 (Routine)
Conception	United States	Record daily precipitation	57.4 mm (2.3 in)	27 of 100 (Routine)
Syracuse	United States	Record daily precipitation	33.8 mm (1.3 in)	27 of 100 (Routine)
Ft Wayne City	United States	Record daily precipitation	52.3 mm (2.1 in)	26 of 100 (Routine)
Astoria	United States	Record high maximum temperature	31.1 C (88.0 F)	26 of 100 (Routine)
Oneonta	United States	Record daily precipitation	55.4 mm (2.2 in)	25 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high minimum temperature	8.5 C (47.3 F)	24 of 100 (Routine)
Chariton 1 E	United States	Record daily precipitation	45.2 mm (1.8 in)	24 of 100 (Routine)
Maryville 2E	United States	Record daily precipitation	68.1 mm (2.7 in)	24 of 100 (Routine)
Stratton	United States	Record daily precipitation	34.0 mm (1.3 in)	23 of 100 (Routine)
Zanesville Wwtp	United States	Record daily precipitation	44.2 mm (1.7 in)	23 of 100 (Routine)
Willapa Harbor	United States	Record high maximum temperature	35.0 C (95.0 F)	23 of 100 (Routine)
Philadelphia City	United States	Record low maximum temperature	22.2 C (72.0 F)	23 of 100 (Routine)
Worcester	United States	Record low minimum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Lynchburg - Coop	United States	Record high minimum temperature	25.0 C (77.0 F)	22 of 100 (Routine)
Decatur Wtp	United States	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Laramie	United States	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Garah (Welbon)	Australia	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Columbus Ohio St UNIV	United States	Record daily precipitation	38.9 mm (1.5 in)	20 of 100 (Routine)
Point Pleasant	United States	Record high minimum temperature	23.9 C (75.0 F)	20 of 100 (Routine)
Jingellic	Australia	Record daily precipitation	22.1 mm (0.9 in)	19 of 100 (Routine)
Galway	Ireland	Record low minimum temperature	5.6 C (42.1 F)	19 of 100 (Routine)
Jokkmokk	Sweden	Record low maximum temperature	8.8 C (47.8 F)	19 of 100 (Routine)
Anderson 1 N	United States	Record daily precipitation	23.9 mm (0.9 in)	19 of 100 (Routine)
Hays 1 S	United States	Record daily precipitation	34.3 mm (1.4 in)	19 of 100 (Routine)
Harnosand	Sweden	Record low maximum temperature	14.0 C (57.2 F)	18 of 100 (Routine)
Castle Rock	United States	Record low minimum temperature	5.0 C (41.0 F)	18 of 100 (Routine)
St Joseph	United States	Record daily precipitation	16.5 mm (0.6 in)	18 of 100 (Routine)
Howard	United States	Record daily precipitation	31.8 mm (1.3 in)	18 of 100 (Routine)
St. Petersburg	Russia	Record low minimum temperature	7.8 C (46.0 F)	17 of 100 (Routine)
Portland Rfc City	United States	Record high maximum temperature	35.0 C (95.0 F)	17 of 100 (Routine)
Huntington	United States	Record daily precipitation	28.4 mm (1.1 in)	16 of 100 (Routine)
Gove 4W	United States	Record daily precipitation	24.1 mm (0.9 in)	16 of 100 (Routine)
Biloxi	United States	Record daily precipitation	63.2 mm (2.5 in)	16 of 100 (Routine)
Waynesboro	United States	Record high minimum temperature	24.4 C (75.9 F)	16 of 100 (Routine)
Pitea	Sweden	Record low maximum temperature	11.0 C (51.8 F)	15 of 100 (Routine)
Greeley	United States	Record daily precipitation	12.7 mm (0.5 in)	15 of 100 (Routine)
New Bedford Coop	United States	Record low minimum temperature	13.3 C (55.9 F)	15 of 100 (Routine)
Canton	United States	Record daily precipitation	53.3 mm (2.1 in)	15 of 100 (Routine)
Perryville	United States	Record high minimum temperature	23.3 C (73.9 F)	15 of 100 (Routine)
Hallettsville 2 N	United States	Record high maximum temperature	40.0 C (104.0 F)	15 of 100 (Routine)

Counts by Type and Timescale

205 records

Records set or tied on 21 July 1928 by type: Highest daily maximum 21, Lowest daily maximum 38, Highest daily minimum 54, Lowest daily minimum 21, Heaviest daily rainfall 71.

Records on 21 July 1928 by type
Record type	Records
Highest daily maximum	21
Lowest daily maximum	38
Highest daily minimum	54
Lowest daily minimum	21
Heaviest daily rainfall	71
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1928 by timescale: all-time 1, monthly 1, daily 203.

How Much Records Were Beaten By

152 broken records

Margins by which the 152 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 64.7. Ties are not counted.

Top 20 by Significance

21 July 1928

Top 20 records on 21 July 1928 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1928	Cavan, AU	daily rain	47.0 mm (1.9 in)	40.6 mm (1.6 in)	39 years	55 of 100 (Notable)
21 July 1928	Atlantic 1 NE, US	daily rain	47.2 mm (1.9 in)	47.2 mm (1.9 in)	34 years	53 of 100 (Notable)
21 July 1928	Lenox, US	daily rain	63.5 mm (2.5 in)	58.4 mm (2.3 in)	31 years	47 of 100 (Notable)
21 July 1928	Lynnville 4 SSW, US	daily rain	85.1 mm (3.4 in)	49.3 mm (1.9 in)	33 years	46 of 100 (Notable)
21 July 1928	Imperial, US	daily rain	53.3 mm (2.1 in)	37.6 mm (1.5 in)	26 years	45 of 100 (Notable)
21 July 1928	Mt Ayr, US	daily rain	109.2 mm (4.3 in)	64.7 mm (2.5 in)	20 years	43 of 100 (Notable)
21 July 1928	Guthrie Ctr, US	daily rain	48.8 mm (1.9 in)	46.5 mm (1.8 in)	16 years	42 of 100 (Notable)
21 July 1928	Oskaloosa, US	daily rain	42.9 mm (1.7 in)	42.9 mm (1.7 in)	34 years	42 of 100 (Notable)
21 July 1928	Afton, US	daily rain	59.7 mm (2.4 in)	53.3 mm (2.1 in)	4 years	38 of 100 (Notable)
21 July 1928	Joliet, US	daily rain	34.3 mm (1.4 in)	32.3 mm (1.3 in)	20 years	37 of 100 (Notable)
21 July 1928	Ottumwa 1 WSW, US	daily rain	63.2 mm (2.5 in)	37.5 mm (1.5 in)	31 years	34 of 100 (Routine)
21 July 1928	Le Mars, US	daily rain	57.2 mm (2.3 in)	45.0 mm (1.8 in)	4 years	33 of 100 (Routine)
21 July 1928	Grant City, US	daily rain	76.2 mm (3.0 in)	63.0 mm (2.5 in)	25 years	33 of 100 (Routine)
21 July 1928	Unionville, US	daily rain	54.6 mm (2.1 in)	41.9 mm (1.6 in)	1 year	32 of 100 (Routine)
21 July 1928	Hartington, US	daily rain	52.1 mm (2.1 in)	34.8 mm (1.4 in)	7 years	30 of 100 (Routine)
21 July 1928	Chattanooga Wb City, US	daily rain	54.1 mm (2.1 in)	15.0 mm (0.6 in)	47 years	30 of 100 (Routine)
21 July 1928	Harnosand, SE	daily low min	3.5 C (38.3 F)	3.5 C (6.3 F)	43 years	29 of 100 (Routine)
21 July 1928	Alexandria, US	daily rain	40.6 mm (1.6 in)	34.0 mm (1.3 in)	2 years	29 of 100 (Routine)
21 July 1928	Corning, US	daily rain	47.0 mm (1.9 in)	30.7 mm (1.2 in)	31 years	28 of 100 (Routine)
21 July 1928	Hvar, HR	daily high max	34.0 C (93.2 F)	1.9 C (3.4 F)	47 years	27 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 1928

Records set or tied on this calendar date in each year from 1794 to 1928. 1928 had 205 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 1928-07-21: 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	119
10 to 20	8
20 to 30	5
30 to 40	7
40 to 50	9
50 to 60	2
60 to 70	2