Weather Records on 21 July 1938

638 weather records were set or tied worldwide on 21 July 1938. Highest significance: Chestnut Hill, US.

Key Facts for 21 July 1938

On 21 July 1938, 638 weather records were set or tied at long-record stations worldwide.
148 were record highs and 74 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 11 monthly and 622 daily.
Chestnut Hill set a daily record precipitation of 79.0 mm (3.1 in) on 21 July 1938.
Across 159 earlier years (1794 to 2026) the same calendar date averaged 466 records.

Record Map

638 stations

638 station records on 21 July 1938 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 July 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chestnut Hill	United States	Record daily precipitation	79.0 mm (3.1 in)	57 of 100 (Notable)
Highlands	United States	Record daily precipitation	132.3 mm (5.2 in)	52 of 100 (Notable)
Carmel	United States	Record daily precipitation	87.4 mm (3.4 in)	51 of 100 (Notable)
Chotan	India	Record daily precipitation	137.2 mm (5.4 in)	50 of 100 (Notable)
Spot Pond	United States	Record daily precipitation	86.6 mm (3.4 in)	50 of 100 (Notable)
Tuckerton 2 NE	United States	Record daily precipitation	75.7 mm (3.0 in)	50 of 100 (Notable)
Framingham	United States	Record daily precipitation	71.9 mm (2.8 in)	47 of 100 (Notable)
W Pt	United States	Record daily precipitation	72.6 mm (2.9 in)	46 of 100 (Notable)
Mendota	United States	Record daily precipitation	65.3 mm (2.6 in)	46 of 100 (Notable)
Lawrence	United States	Record daily precipitation	70.9 mm (2.8 in)	45 of 100 (Notable)
Albert (the Meadows)	Australia	Record daily precipitation	30.0 mm (1.2 in)	43 of 100 (Notable)
Altentreptow	Germany	Record daily precipitation	37.5 mm (1.5 in)	43 of 100 (Notable)
Jawaja	India	Record daily precipitation	127.0 mm (5.0 in)	43 of 100 (Notable)
Sojat	India	Record daily precipitation	154.4 mm (6.1 in)	43 of 100 (Notable)
Desuri	India	Record daily precipitation	152.4 mm (6.0 in)	43 of 100 (Notable)
Cream Hill	United States	Record daily precipitation	58.4 mm (2.3 in)	43 of 100 (Notable)
Lindenberg	Germany	Record daily precipitation	37.0 mm (1.5 in)	41 of 100 (Notable)
Ashland	United States	Record daily precipitation	93.2 mm (3.7 in)	40 of 100 (Notable)
Menard	United States	Record daily precipitation	111.8 mm (4.4 in)	40 of 100 (Notable)
Novosibirsk	Russia	Record daily precipitation	34.8 mm (1.4 in)	39 of 100 (Notable)
Siwana	India	Record daily precipitation	157.2 mm (6.2 in)	38 of 100 (Notable)
Ai-Petri	Ukraine	Record daily precipitation	36.7 mm (1.4 in)	38 of 100 (Notable)
Sirohi	India	Record daily precipitation	118.1 mm (4.6 in)	37 of 100 (Notable)
Dadeville	United States	Record daily precipitation	67.3 mm (2.6 in)	37 of 100 (Notable)
Wellington (Springfield)	Australia	Record daily precipitation	27.2 mm (1.1 in)	36 of 100 (Notable)
Crosbyton	United States	Record daily precipitation	76.2 mm (3.0 in)	36 of 100 (Notable)
Lowell	United States	Record daily precipitation	56.1 mm (2.2 in)	35 of 100 (Notable)
Clarksdale	United States	Record daily precipitation	48.8 mm (1.9 in)	35 of 100 (Notable)
Ballinger 2 NW	United States	Record low maximum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Jaswantpura	India	Record daily precipitation	69.9 mm (2.8 in)	34 of 100 (Routine)
Takoma Park # 1	United States	Record daily precipitation	40.6 mm (1.6 in)	34 of 100 (Routine)
Blue Hill Coop	United States	Record daily precipitation	53.1 mm (2.1 in)	34 of 100 (Routine)
Mayville	United States	Record daily precipitation	54.6 mm (2.1 in)	34 of 100 (Routine)
Blayney Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	33 of 100 (Routine)
Adelong Post Office	Australia	Record daily precipitation	27.9 mm (1.1 in)	33 of 100 (Routine)
Jaitram	India	Record daily precipitation	94.7 mm (3.7 in)	33 of 100 (Routine)
Walnut Grove	United States	Record daily precipitation	36.8 mm (1.4 in)	33 of 100 (Routine)
Gorki	Belarus	Record daily precipitation	31.8 mm (1.3 in)	32 of 100 (Routine)
Port Arthur	Canada	Record low minimum temperature	3.9 C (39.0 F)	32 of 100 (Routine)
Rock House	United States	Record daily precipitation	101.6 mm (4.0 in)	31 of 100 (Routine)
Ephrata	United States	Record daily precipitation	54.1 mm (2.1 in)	31 of 100 (Routine)
Peak Hill Post Office	Australia	Record daily precipitation	25.9 mm (1.0 in)	30 of 100 (Routine)
Gudha	India	Record daily precipitation	80.8 mm (3.2 in)	30 of 100 (Routine)
Trenton 2	United States	Record daily precipitation	60.5 mm (2.4 in)	30 of 100 (Routine)
Brownwood 2NE	United States	Record low maximum temperature	26.1 C (79.0 F)	30 of 100 (Routine)
Conconully	United States	Record high maximum temperature	43.3 C (109.9 F)	30 of 100 (Routine)
Victoria Gonzales Hts	Canada	Record high minimum temperature	16.1 C (61.0 F)	29 of 100 (Routine)
Beawar Nayanagar	India	Record daily precipitation	46.2 mm (1.8 in)	29 of 100 (Routine)
Dover	United States	Record daily precipitation	38.1 mm (1.5 in)	29 of 100 (Routine)
Sussex 1 NW	United States	Record daily precipitation	61.0 mm (2.4 in)	29 of 100 (Routine)
Jalore	India	Record daily precipitation	152.4 mm (6.0 in)	28 of 100 (Routine)
Wetumpka	United States	Record daily precipitation	63.5 mm (2.5 in)	28 of 100 (Routine)
Enterprise	United States	Record daily precipitation	70.1 mm (2.8 in)	28 of 100 (Routine)
Walhalla	United States	Record low maximum temperature	22.8 C (73.0 F)	28 of 100 (Routine)
Ft Stockton 1	United States	Record daily precipitation	34.3 mm (1.4 in)	28 of 100 (Routine)
Junction 4SSW	United States	Record daily precipitation	65.5 mm (2.6 in)	28 of 100 (Routine)
Bluefield 2 NW	United States	Record daily precipitation	51.1 mm (2.0 in)	28 of 100 (Routine)
Cudgegong (Kiora)	Australia	Record daily precipitation	25.4 mm (1.0 in)	27 of 100 (Routine)
Lynchburg - Coop	United States	Record daily precipitation	48.0 mm (1.9 in)	27 of 100 (Routine)
Pali	India	Record daily precipitation	127.0 mm (5.0 in)	26 of 100 (Routine)

Counts by Type and Timescale

638 records

Records set or tied on 21 July 1938 by type: Highest daily maximum 89, Lowest daily maximum 56, Highest daily minimum 59, Lowest daily minimum 18, Heaviest daily rainfall 416.

Records on 21 July 1938 by type
Record type	Records
Highest daily maximum	89
Lowest daily maximum	56
Highest daily minimum	59
Lowest daily minimum	18
Heaviest daily rainfall	416
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 July 1938 by timescale: all-time 5, monthly 11, daily 622.

How Much Records Were Beaten By

557 broken records

Margins by which the 557 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 126.5. Ties are not counted.

Top 20 by Significance

21 July 1938

Top 20 records on 21 July 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 July 1938	Chestnut Hill, US	daily rain	79.0 mm (3.1 in)	50.3 mm (2.0 in)	43 years	57 of 100 (Notable)
21 July 1938	Highlands, US	daily rain	132.3 mm (5.2 in)	72.6 mm (2.9 in)	20 years	52 of 100 (Notable)
21 July 1938	Carmel, US	daily rain	87.4 mm (3.4 in)	59.5 mm (2.3 in)	32 years	51 of 100 (Notable)
21 July 1938	Chotan, IN	daily rain	137.2 mm (5.4 in)	126.5 mm (5.0 in)	24 years	50 of 100 (Notable)
21 July 1938	Spot Pond, US	daily rain	86.6 mm (3.4 in)	55.6 mm (2.2 in)	25 years	50 of 100 (Notable)
21 July 1938	Tuckerton 2 NE, US	daily rain	75.7 mm (3.0 in)	55.4 mm (2.2 in)	25 years	50 of 100 (Notable)
21 July 1938	Framingham, US	daily rain	71.9 mm (2.8 in)	41.9 mm (1.6 in)	25 years	47 of 100 (Notable)
21 July 1938	W Pt, US	daily rain	72.6 mm (2.9 in)	50.0 mm (2.0 in)	25 years	46 of 100 (Notable)
21 July 1938	Mendota, US	daily rain	65.3 mm (2.6 in)	41.2 mm (1.6 in)	23 years	46 of 100 (Notable)
21 July 1938	Lawrence, US	daily rain	70.9 mm (2.8 in)	43.7 mm (1.7 in)	25 years	45 of 100 (Notable)
21 July 1938	Albert (the Meadows), AU	daily rain	30.0 mm (1.2 in)	21.4 mm (0.8 in)	20 years	43 of 100 (Notable)
21 July 1938	Altentreptow, DE	daily rain	37.5 mm (1.5 in)	25.5 mm (1.0 in)	28 years	43 of 100 (Notable)
21 July 1938	Jawaja, IN	daily rain	127.0 mm (5.0 in)	81.3 mm (3.2 in)	0 years	43 of 100 (Notable)
21 July 1938	Sojat, IN	daily rain	154.4 mm (6.1 in)	85.8 mm (3.4 in)	35 years	43 of 100 (Notable)
21 July 1938	Desuri, IN	daily rain	152.4 mm (6.0 in)	101.6 mm (4.0 in)	0 years	43 of 100 (Notable)
21 July 1938	Cream Hill, US	daily rain	58.4 mm (2.3 in)	36.6 mm (1.4 in)	25 years	43 of 100 (Notable)
21 July 1938	Lindenberg, DE	daily rain	37.0 mm (1.5 in)	25.7 mm (1.0 in)	20 years	41 of 100 (Notable)
21 July 1938	Ashland, US	monthly rain	93.2 mm (3.7 in)	23.6 mm (0.9 in)	23 years	40 of 100 (Notable)
21 July 1938	Menard, US	monthly rain	111.8 mm (4.4 in)	24.2 mm (1.0 in)	37 years	40 of 100 (Notable)
21 July 1938	Novosibirsk, RU	daily rain	34.8 mm (1.4 in)	17.8 mm (0.7 in)	28 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 1938

Records set or tied on this calendar date in each year from 1794 to 1938. 1938 had 638 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 1938-07-21: 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 20	501
20 to 40	35
40 to 60	14
60 to 80	3
80 to 100	2
100 to 120	1
120 to 140	1