Weather Records on 21 September 1938

508 weather records were set or tied worldwide on 21 September 1938. Highest significance: Storrs, US.

Key Facts for 21 September 1938

On 21 September 1938, 508 weather records were set or tied at long-record stations worldwide.
189 were record highs and 108 were record lows, counting maximum and minimum temperature.
By timescale, 11 were all-time records, 33 monthly and 464 daily.
Storrs set an all-time record daily precipitation of 157.7 mm (6.2 in) on 21 September 1938.
Across 155 earlier years (1805 to 2026) the same calendar date averaged 451 records.

Record Map

508 stations

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

Weather records on 21 September 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Storrs	United States	Record daily precipitation	157.7 mm (6.2 in)	64 of 100 (Major)
Lakefield	Canada	Record daily precipitation	73.7 mm (2.9 in)	61 of 100 (Major)
Jefferson	United States	Record daily precipitation	257.0 mm (10.1 in)	57 of 100 (Notable)
Trenton 2	United States	Record daily precipitation	81.8 mm (3.2 in)	57 of 100 (Notable)
Pembroke Eddy Match	Canada	Record daily precipitation	56.4 mm (2.2 in)	55 of 100 (Notable)
Wappingers Falls	United States	Record daily precipitation	106.2 mm (4.2 in)	55 of 100 (Notable)
Hailakundi India	India	Record daily precipitation	236.2 mm (9.3 in)	53 of 100 (Notable)
Bridgeport	United States	Record daily precipitation	129.0 mm (5.1 in)	52 of 100 (Notable)
Hanover	United States	Record daily precipitation	68.1 mm (2.7 in)	51 of 100 (Notable)
Beatrice	Canada	Record daily precipitation	60.5 mm (2.4 in)	50 of 100 (Notable)
Peterborough	Canada	Record daily precipitation	56.9 mm (2.2 in)	50 of 100 (Notable)
Cream Hill	United States	Record daily precipitation	130.8 mm (5.1 in)	50 of 100 (Notable)
Waterbury	United States	Record daily precipitation	108.0 mm (4.3 in)	50 of 100 (Notable)
Amherst	United States	Record daily precipitation	98.6 mm (3.9 in)	50 of 100 (Notable)
Boylston	United States	Record daily precipitation	186.2 mm (7.3 in)	50 of 100 (Notable)
Worcester	United States	Record daily precipitation	87.4 mm (3.4 in)	50 of 100 (Notable)
Pleasantville 1 N	United States	Record daily precipitation	98.8 mm (3.9 in)	50 of 100 (Notable)
Tuckerton 2 NE	United States	Record daily precipitation	131.1 mm (5.2 in)	50 of 100 (Notable)
Oneonta 1 S	United States	Record daily precipitation	75.7 mm (3.0 in)	50 of 100 (Notable)
Spier Falls	United States	Record daily precipitation	78.7 mm (3.1 in)	50 of 100 (Notable)
Atlantic City Marina	United States	Record daily precipitation	114.3 mm (4.5 in)	50 of 100 (Notable)
Layton 3 NW	United States	Record daily precipitation	84.8 mm (3.3 in)	49 of 100 (Notable)
Northfield	United States	Record daily precipitation	150.4 mm (5.9 in)	49 of 100 (Notable)
Roebling	United States	Record daily precipitation	117.9 mm (4.6 in)	48 of 100 (Notable)
W Pt	United States	Record daily precipitation	100.3 mm (3.9 in)	48 of 100 (Notable)
Lindsay	Canada	Record daily precipitation	49.8 mm (2.0 in)	47 of 100 (Notable)
Indian Mills 2 W	United States	Record daily precipitation	108.2 mm (4.3 in)	47 of 100 (Notable)
Huntsville	Canada	Record daily precipitation	40.1 mm (1.6 in)	46 of 100 (Notable)
Cutchogue	United States	Record daily precipitation	106.7 mm (4.2 in)	46 of 100 (Notable)
Northfield	United States	Record daily precipitation	74.9 mm (2.9 in)	46 of 100 (Notable)
Jalna	India	Record daily precipitation	133.4 mm (5.3 in)	45 of 100 (Notable)
Albany	United States	Record daily precipitation	99.3 mm (3.9 in)	45 of 100 (Notable)
World Trade Ctr	United States	Record daily precipitation	94.2 mm (3.7 in)	45 of 100 (Notable)
Ny City Cntrl Park	United States	Record daily precipitation	102.9 mm (4.1 in)	45 of 100 (Notable)
Yarmouth	Canada	Record high minimum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
Greenfield Ctr	United States	Record daily precipitation	88.9 mm (3.5 in)	44 of 100 (Notable)
Kadayam	India	Record daily precipitation	40.6 mm (1.6 in)	43 of 100 (Notable)
Turners Falls	United States	Record daily precipitation	73.4 mm (2.9 in)	43 of 100 (Notable)
Culvers Lake	United States	Record daily precipitation	88.9 mm (3.5 in)	43 of 100 (Notable)
Warwick	United States	Record daily precipitation	120.7 mm (4.8 in)	43 of 100 (Notable)
Burlington	United States	Record daily precipitation	72.4 mm (2.9 in)	43 of 100 (Notable)
Vernon	United States	Record daily precipitation	79.0 mm (3.1 in)	43 of 100 (Notable)
Collingwood	Canada	Record daily precipitation	38.6 mm (1.5 in)	42 of 100 (Notable)
Orillia	Canada	Record daily precipitation	60.7 mm (2.4 in)	42 of 100 (Notable)
Concord	United States	Record daily precipitation	62.7 mm (2.5 in)	42 of 100 (Notable)
Scarsdale	United States	Record daily precipitation	161.3 mm (6.4 in)	42 of 100 (Notable)
Belvidere	United States	Record daily precipitation	91.4 mm (3.6 in)	41 of 100 (Notable)
New Brunswick Exp STN	United States	Record daily precipitation	122.2 mm (4.8 in)	41 of 100 (Notable)
Belleville	Canada	Record daily precipitation	29.5 mm (1.2 in)	40 of 100 (Notable)
Bedford Hills	United States	Record daily precipitation	152.4 mm (6.0 in)	40 of 100 (Notable)
Mohonk Lake	United States	Record daily precipitation	96.5 mm (3.8 in)	40 of 100 (Notable)
Ottawa Cda	Canada	Record daily precipitation	45.0 mm (1.8 in)	39 of 100 (Notable)
Sasvad	India	Record daily precipitation	58.9 mm (2.3 in)	39 of 100 (Notable)
Soyland I Gjesdal	Norway	Record daily precipitation	70.6 mm (2.8 in)	39 of 100 (Notable)
Colchester 2 W	United States	Record daily precipitation	78.7 mm (3.1 in)	39 of 100 (Notable)
Elizabeth	United States	Record daily precipitation	126.0 mm (5.0 in)	39 of 100 (Notable)
Somerville 4 NW	United States	Record daily precipitation	97.5 mm (3.8 in)	39 of 100 (Notable)
Montreal McGill	Canada	Record daily precipitation	46.7 mm (1.8 in)	38 of 100 (Notable)
Devikulam	India	Record daily precipitation	99.1 mm (3.9 in)	38 of 100 (Notable)
Concord	United States	Record daily precipitation	70.9 mm (2.8 in)	38 of 100 (Notable)

Counts by Type and Timescale

508 records

Records set or tied on 21 September 1938 by type: Highest daily maximum 118, Lowest daily maximum 55, Highest daily minimum 71, Lowest daily minimum 53, Heaviest daily rainfall 211.

Records on 21 September 1938 by type
Record type	Records
Highest daily maximum	118
Lowest daily maximum	55
Highest daily minimum	71
Lowest daily minimum	53
Heaviest daily rainfall	211
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 September 1938 by timescale: all-time 11, monthly 33, daily 464.

How Much Records Were Beaten By

430 broken records

Margins by which the 430 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 136.4. Ties are not counted.

Top 20 by Significance

21 September 1938

Top 20 records on 21 September 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 September 1938	Storrs, US	all-time rain	157.7 mm (6.2 in)	40.1 mm (1.6 in)	42 years	64 of 100 (Major)
21 September 1938	Lakefield, CA	daily rain	73.7 mm (2.9 in)	55.4 mm (2.2 in)	51 years	61 of 100 (Major)
21 September 1938	Jefferson, US	all-time rain	257.0 mm (10.1 in)	76.9 mm (3.0 in)	5 years	57 of 100 (Notable)
21 September 1938	Trenton 2, US	daily rain	81.8 mm (3.2 in)	53.9 mm (2.1 in)	70 years	57 of 100 (Notable)
21 September 1938	Pembroke Eddy Match, CA	daily rain	56.4 mm (2.2 in)	37.3 mm (1.5 in)	71 years	55 of 100 (Notable)
21 September 1938	Wappingers Falls, US	daily rain	106.2 mm (4.2 in)	63.5 mm (2.5 in)	38 years	55 of 100 (Notable)
21 September 1938	Hailakundi India, IN	monthly rain	236.2 mm (9.3 in)	96.5 mm (3.8 in)	3 years	53 of 100 (Notable)
21 September 1938	Bridgeport, US	monthly rain	129.0 mm (5.1 in)	39.1 mm (1.5 in)	44 years	52 of 100 (Notable)
21 September 1938	Hanover, US	daily rain	68.1 mm (2.7 in)	44.5 mm (1.8 in)	20 years	51 of 100 (Notable)
21 September 1938	Beatrice, CA	daily rain	60.5 mm (2.4 in)	35.1 mm (1.4 in)	16 years	50 of 100 (Notable)
21 September 1938	Peterborough, CA	daily rain	56.9 mm (2.2 in)	34.0 mm (1.3 in)	37 years	50 of 100 (Notable)
21 September 1938	Cream Hill, US	all-time rain	130.8 mm (5.1 in)	34.3 mm (1.4 in)	6 years	50 of 100 (Notable)
21 September 1938	Waterbury, US	daily rain	108.0 mm (4.3 in)	93.0 mm (3.7 in)	23 years	50 of 100 (Notable)
21 September 1938	Amherst, US	daily rain	98.6 mm (3.9 in)	74.7 mm (2.9 in)	23 years	50 of 100 (Notable)
21 September 1938	Boylston, US	daily rain	186.2 mm (7.3 in)	119.9 mm (4.7 in)	20 years	50 of 100 (Notable)
21 September 1938	Worcester, US	daily rain	87.4 mm (3.4 in)	69.1 mm (2.7 in)	23 years	50 of 100 (Notable)
21 September 1938	Pleasantville 1 N, US	daily rain	98.8 mm (3.9 in)	86.9 mm (3.4 in)	20 years	50 of 100 (Notable)
21 September 1938	Tuckerton 2 NE, US	daily rain	131.1 mm (5.2 in)	74.5 mm (2.9 in)	23 years	50 of 100 (Notable)
21 September 1938	Oneonta 1 S, US	daily rain	75.7 mm (3.0 in)	61.0 mm (2.4 in)	23 years	50 of 100 (Notable)
21 September 1938	Spier Falls, US	daily rain	78.7 mm (3.1 in)	45.9 mm (1.8 in)	24 years	50 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

1805 to 1938

Records set or tied on this calendar date in each year from 1805 to 1938. 1938 had 508 records.

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

Records on 09-21 in each year
Year	Records
1805	1
1812	1
1825	2
1840	1
1841	1
1842	1
1848	1
1854	1
1856	2
1868	1
1872	2
1873	1
1877	1
1878	1
1881	1
1882	1
1884	1
1886	1
1888	2
1889	1
1891	10
1892	1
1893	10
1894	2
1895	3
1896	2
1897	6
1898	6
1899	3
1900	2
1901	5
1902	5
1903	8
1904	20
1905	12
1906	17
1907	10
1908	17
1909	10
1910	8
1911	18
1912	26
1913	37
1914	29
1915	34
1916	48
1917	28
1918	43
1919	54
1920	29
1921	64
1922	35
1923	232
1924	291
1925	278
1926	178
1927	165
1928	81
1929	232
1930	82
1931	681
1932	242
1933	193
1934	492
1935	199
1936	329
1937	487
1938	508
1939	308
1940	908
1941	416
1942	291
1943	407
1944	413
1945	507
1946	176
1947	534
1948	301
1949	298
1950	334
1951	241
1952	430
1953	382
1954	453
1955	752
1956	1,100
1957	366
1958	588
1959	513
1960	418
1961	441
1962	1,085
1963	306
1964	374
1965	1,088
1966	565
1967	577
1968	790
1969	593
1970	708
1971	645
1972	599
1973	421
1974	652
1975	528
1976	694
1977	918
1978	818
1979	736
1980	990
1981	696
1982	1,484
1983	2,207
1984	707
1985	796
1986	671
1987	965
1988	557
1989	1,002
1990	716
1991	1,021
1992	752
1993	911
1994	713
1995	2,002
1996	1,233
1997	1,112
1998	1,481
1999	1,025
2000	884
2001	718
2002	696
2003	959
2004	888
2005	1,143
2006	920
2007	742
2008	740
2009	715
2010	1,290
2011	542
2012	595
2013	769
2014	716
2015	565
2016	989
2017	1,178
2018	1,051
2019	833
2020	580
2021	465
2022	1,049
2023	783
2024	470
2025	591
2026	478

Download the Data

Data for records on 1938-09-21: 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 2026-10-15 (15 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	328
20 to 40	57
40 to 60	26
60 to 80	12
80 to 100	4
100 to 120	2
120 to 140	1