Weather Records on 21 July 1948

403 weather records were set or tied worldwide on 21 July 1948. Highest significance: Woodstock, CA.

Key Facts for 21 July 1948

On 21 July 1948, 403 weather records were set or tied at long-record stations worldwide.
110 were record highs and 82 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 14 monthly and 385 daily.
Woodstock set a daily record precipitation of 64.5 mm (2.5 in) on 21 July 1948.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 467 records.

Record Map

403 stations

403 station records on 21 July 1948 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1948: highest significance records shown on the map
Station	Country	Type	Value	Significance
Woodstock	Canada	Record daily precipitation	64.5 mm (2.5 in)	57 of 100 (Notable)
Atlantic 1 NE	United States	Record daily precipitation	135.9 mm (5.4 in)	57 of 100 (Notable)
Devgad	India	Record daily precipitation	396.2 mm (15.6 in)	55 of 100 (Notable)
Portal	United States	Record daily precipitation	41.4 mm (1.6 in)	55 of 100 (Notable)
Newark Liberty Intl AP	United States	Record daily precipitation	70.6 mm (2.8 in)	54 of 100 (Notable)
Lapeer 2 SE	United States	Record daily precipitation	119.4 mm (4.7 in)	53 of 100 (Notable)
Washington	United States	Record daily precipitation	88.9 mm (3.5 in)	49 of 100 (Notable)
Elgin 5 N	United States	Record daily precipitation	67.8 mm (2.7 in)	48 of 100 (Notable)
Greenfield	United States	Record daily precipitation	164.3 mm (6.5 in)	46 of 100 (Notable)
Iowa City	United States	Record daily precipitation	82.8 mm (3.3 in)	46 of 100 (Notable)
Sogndal - Selseng	Norway	Record daily precipitation	32.2 mm (1.3 in)	44 of 100 (Notable)
Khandwa	India	Record daily precipitation	104.1 mm (4.1 in)	43 of 100 (Notable)
Winterset 4N	United States	Record daily precipitation	114.3 mm (4.5 in)	43 of 100 (Notable)
Kistwar	India	Record daily precipitation	58.4 mm (2.3 in)	41 of 100 (Notable)
Aktobe	Kazakhstan	Record high minimum temperature	26.3 C (79.3 F)	41 of 100 (Notable)
Peru	United States	Record daily precipitation	35.6 mm (1.4 in)	41 of 100 (Notable)
Angelica	United States	Record daily precipitation	57.2 mm (2.3 in)	41 of 100 (Notable)
Lisbon	United States	Record daily precipitation	76.5 mm (3.0 in)	41 of 100 (Notable)
Paw Paw 2S	United States	Record daily precipitation	73.2 mm (2.9 in)	40 of 100 (Notable)
Shelbyville Sewage Plt	United States	Record daily precipitation	66.3 mm (2.6 in)	39 of 100 (Notable)
Vidisha	India	Record daily precipitation	246.4 mm (9.7 in)	38 of 100 (Notable)
Geneseo	United States	Record daily precipitation	59.2 mm (2.3 in)	38 of 100 (Notable)
Grinnell 3 SW	United States	Record daily precipitation	52.3 mm (2.1 in)	38 of 100 (Notable)
Davenport L&D 15	United States	Record daily precipitation	73.7 mm (2.9 in)	38 of 100 (Notable)
Lucan	Canada	Record daily precipitation	44.5 mm (1.8 in)	37 of 100 (Notable)
Marshfield Exp Farm	United States	Record daily precipitation	71.1 mm (2.8 in)	37 of 100 (Notable)
Kulgam	India	Record daily precipitation	63.5 mm (2.5 in)	36 of 100 (Notable)
Rajakhera	India	Record daily precipitation	99.1 mm (3.9 in)	36 of 100 (Notable)
Danville	United States	Record daily precipitation	54.6 mm (2.1 in)	36 of 100 (Notable)
World Trade Ctr	United States	Record daily precipitation	73.2 mm (2.9 in)	36 of 100 (Notable)
Gird	India	Record daily precipitation	133.4 mm (5.3 in)	34 of 100 (Routine)
Eckman 2 SE	United States	Record low maximum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Danevang 1 W	United States	Record high minimum temperature	27.2 C (81.0 F)	34 of 100 (Routine)
Pembina	United States	Record daily precipitation	44.2 mm (1.7 in)	34 of 100 (Routine)
Alwar	India	Record daily precipitation	86.4 mm (3.4 in)	33 of 100 (Routine)
La Salle Peru	United States	Record daily precipitation	36.1 mm (1.4 in)	33 of 100 (Routine)
Wichita	United States	Record daily precipitation	46.2 mm (1.8 in)	33 of 100 (Routine)
Bordeaux-Merignac	France	Record daily precipitation	30.8 mm (1.2 in)	32 of 100 (Routine)
Hoshangabad	India	Record daily precipitation	165.4 mm (6.5 in)	32 of 100 (Routine)
Raisen	India	Record daily precipitation	229.9 mm (9.1 in)	32 of 100 (Routine)
Jhajjar	India	Record daily precipitation	76.7 mm (3.0 in)	31 of 100 (Routine)
Etmadpur	India	Record daily precipitation	95.8 mm (3.8 in)	31 of 100 (Routine)
Williamsburg 1E	United States	Record daily precipitation	50.8 mm (2.0 in)	31 of 100 (Routine)
Mainpuri	India	Record daily precipitation	80.8 mm (3.2 in)	30 of 100 (Routine)
Crown King	United States	Record daily precipitation	74.2 mm (2.9 in)	30 of 100 (Routine)
Jamestown	United States	Record daily precipitation	36.3 mm (1.4 in)	30 of 100 (Routine)
Flandreau	United States	Record daily precipitation	38.1 mm (1.5 in)	30 of 100 (Routine)
Ranka	India	Record daily precipitation	82.6 mm (3.3 in)	29 of 100 (Routine)
Khairagarh	India	Record daily precipitation	57.7 mm (2.3 in)	29 of 100 (Routine)
1 WSW Princeton	United States	Record daily precipitation	71.6 mm (2.8 in)	29 of 100 (Routine)
Crookston NW Exp STN	United States	Record low maximum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Sonamarg &	India	Record daily precipitation	35.6 mm (1.4 in)	28 of 100 (Routine)
Sohagpur	India	Record daily precipitation	211.8 mm (8.3 in)	28 of 100 (Routine)
Shirpur	India	Record daily precipitation	53.1 mm (2.1 in)	28 of 100 (Routine)
Wupperthal	South Africa	Record daily precipitation	27.7 mm (1.1 in)	28 of 100 (Routine)
New London	United States	Record daily precipitation	48.0 mm (1.9 in)	28 of 100 (Routine)
Mayville	United States	Record low maximum temperature	17.8 C (64.0 F)	28 of 100 (Routine)
Cloud Chief 2 SE	United States	Record high minimum temperature	28.9 C (84.0 F)	28 of 100 (Routine)
Low Head (Comparison)	Australia	Record low maximum temperature	7.2 C (45.0 F)	27 of 100 (Routine)
Cumberland	United States	Record daily precipitation	82.0 mm (3.2 in)	27 of 100 (Routine)

Counts by Type and Timescale

403 records

Records set or tied on 21 July 1948 by type: Highest daily maximum 11, Lowest daily maximum 75, Highest daily minimum 99, Lowest daily minimum 7, Heaviest daily rainfall 210, Deepest snow cover 1.

Records on 21 July 1948 by type
Record type	Records
Highest daily maximum	11
Lowest daily maximum	75
Highest daily minimum	99
Lowest daily minimum	7
Heaviest daily rainfall	210
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 21 July 1948 by timescale: all-time 4, monthly 14, daily 385.

How Much Records Were Beaten By

319 broken records

Margins by which the 319 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 300.0. Ties are not counted.

Top 20 by Significance

21 July 1948

Top 20 records on 21 July 1948 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1948	Woodstock, CA	daily rain	64.5 mm (2.5 in)	40.6 mm (1.6 in)	38 years	57 of 100 (Notable)
21 July 1948	Atlantic 1 NE, US	monthly rain	135.9 mm (5.4 in)	73.2 mm (2.9 in)	8 years	57 of 100 (Notable)
21 July 1948	Devgad, IN	all-time rain	396.2 mm (15.6 in)	79.5 mm (3.1 in)	18 years	55 of 100 (Notable)
21 July 1948	Portal, US	daily rain	41.4 mm (1.6 in)	36.3 mm (1.4 in)	52 years	55 of 100 (Notable)
21 July 1948	Newark Liberty Intl AP, US	daily rain	70.6 mm (2.8 in)	32.8 mm (1.3 in)	79 years	54 of 100 (Notable)
21 July 1948	Lapeer 2 SE, US	all-time rain	119.4 mm (4.7 in)	27.2 mm (1.1 in)	10 years	53 of 100 (Notable)
21 July 1948	Washington, US	daily rain	88.9 mm (3.5 in)	53.3 mm (2.1 in)	51 years	49 of 100 (Notable)
21 July 1948	Elgin 5 N, US	daily rain	67.8 mm (2.7 in)	46.0 mm (1.8 in)	19 years	48 of 100 (Notable)
21 July 1948	Greenfield, US	monthly rain	164.3 mm (6.5 in)	49.5 mm (1.9 in)	6 years	46 of 100 (Notable)
21 July 1948	Iowa City, US	daily rain	82.8 mm (3.3 in)	51.3 mm (2.0 in)	36 years	46 of 100 (Notable)
21 July 1948	Sogndal - Selseng, NO	daily rain	32.2 mm (1.3 in)	15.8 mm (0.6 in)	51 years	44 of 100 (Notable)
21 July 1948	Khandwa, IN	daily rain	104.1 mm (4.1 in)	67.3 mm (2.6 in)	42 years	43 of 100 (Notable)
21 July 1948	Winterset 4N, US	monthly rain	114.3 mm (4.5 in)	20.8 mm (0.8 in)	53 years	43 of 100 (Notable)
21 July 1948	Kistwar, IN	daily rain	58.4 mm (2.3 in)	32.0 mm (1.3 in)	34 years	41 of 100 (Notable)
21 July 1948	Aktobe, KZ	all-time high min	26.3 C (79.3 F)	1.9 C (3.4 F)	41 years	41 of 100 (Notable)
21 July 1948	Peru, US	daily rain	35.6 mm (1.4 in)	31.5 mm (1.2 in)	24 years	41 of 100 (Notable)
21 July 1948	Angelica, US	daily rain	57.2 mm (2.3 in)	22.7 mm (0.9 in)	53 years	41 of 100 (Notable)
21 July 1948	Lisbon, US	monthly rain	76.5 mm (3.0 in)	17.1 mm (0.7 in)	39 years	41 of 100 (Notable)
21 July 1948	Paw Paw 2S, US	monthly rain	73.2 mm (2.9 in)	20.4 mm (0.8 in)	29 years	40 of 100 (Notable)
21 July 1948	Shelbyville Sewage Plt, US	daily rain	66.3 mm (2.6 in)	42.4 mm (1.7 in)	13 years	39 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

1794 to 1948

Records set or tied on this calendar date in each year from 1794 to 1948. 1948 had 403 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 1948-07-21: 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 50	310
50 to 100	8
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	1