Weather Records on 15 August 1938

681 weather records were set or tied worldwide on 15 August 1938. Highest significance: Jennings, US.

Key Facts for 15 August 1938

On 15 August 1938, 681 weather records were set or tied at long-record stations worldwide.
401 were record highs and 76 were record lows, counting maximum and minimum temperature.
By timescale, 8 were all-time records, 24 monthly and 649 daily.
Jennings set an all-time record daily precipitation of 352.6 mm (13.9 in) on 15 August 1938.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 453 records.

Record Map

681 stations

681 station records on 15 August 1938 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 August 1938: highest significance records shown on the map
Station	Country	Type	Value	Significance
Jennings	United States	Record daily precipitation	352.6 mm (13.9 in)	75 of 100 (Major)
Lake Arthur 7 SW	United States	Record daily precipitation	355.6 mm (14.0 in)	70 of 100 (Major)
Peterborough	Canada	Record daily precipitation	57.7 mm (2.3 in)	55 of 100 (Notable)
Cheneyville 1 NE	United States	Record daily precipitation	247.9 mm (9.8 in)	54 of 100 (Notable)
Bagepalli	India	Record daily precipitation	156.7 mm (6.2 in)	50 of 100 (Notable)
Clay Ctr	United States	Record daily precipitation	75.7 mm (3.0 in)	49 of 100 (Notable)
Woodville 4 ESE	United States	Record daily precipitation	92.7 mm (3.6 in)	47 of 100 (Notable)
Wichita	United States	Record daily precipitation	89.4 mm (3.5 in)	47 of 100 (Notable)
Minneapolis	United States	Record daily precipitation	84.8 mm (3.3 in)	45 of 100 (Notable)
Mio Hydro Plt	United States	Record daily precipitation	44.7 mm (1.8 in)	44 of 100 (Notable)
Newton	United States	Record daily precipitation	120.7 mm (4.8 in)	43 of 100 (Notable)
Barud(Warud)	India	Record daily precipitation	98.3 mm (3.9 in)	41 of 100 (Notable)
Manhattan	United States	Record daily precipitation	83.8 mm (3.3 in)	40 of 100 (Notable)
Alexandria	United States	Record daily precipitation	97.8 mm (3.9 in)	40 of 100 (Notable)
Melville	United States	Record daily precipitation	76.5 mm (3.0 in)	40 of 100 (Notable)
Milwaukee Wb City	United States	Record daily precipitation	67.8 mm (2.7 in)	40 of 100 (Notable)
Wamego 4 W	United States	Record daily precipitation	63.8 mm (2.5 in)	39 of 100 (Notable)
Toronto	Canada	Record high minimum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
El Dorado	United States	Record daily precipitation	74.2 mm (2.9 in)	38 of 100 (Notable)
Stanley Wwtp	United States	Record daily precipitation	46.7 mm (1.8 in)	38 of 100 (Notable)
Chapman	United States	Record daily precipitation	143.5 mm (5.6 in)	36 of 100 (Notable)
Ny City Cntrl Park	United States	Record high maximum temperature	35.6 C (96.1 F)	34 of 100 (Routine)
Calhoun 2 N	United States	Record daily precipitation	82.8 mm (3.3 in)	33 of 100 (Routine)
Tranebjerg	Denmark	Record high maximum temperature	27.0 C (80.6 F)	32 of 100 (Routine)
Medicine Lodge	United States	Record daily precipitation	96.3 mm (3.8 in)	32 of 100 (Routine)
Washington	United States	Record high maximum temperature	35.6 C (96.1 F)	32 of 100 (Routine)
Guelph Oac	Canada	Record high minimum temperature	22.8 C (73.0 F)	31 of 100 (Routine)
Peterborough	Canada	Record high minimum temperature	20.6 C (69.1 F)	31 of 100 (Routine)
Kapskarmo	Norway	Record daily precipitation	30.0 mm (1.2 in)	31 of 100 (Routine)
Olin	United States	Record daily precipitation	62.2 mm (2.4 in)	31 of 100 (Routine)
Brucefield	Canada	Record high minimum temperature	24.4 C (75.9 F)	30 of 100 (Routine)
Simferopol	Ukraine	Record high minimum temperature	20.1 C (68.2 F)	30 of 100 (Routine)
Glenwood 3SW	United States	Record daily precipitation	41.7 mm (1.6 in)	30 of 100 (Routine)
Blue Rapids	United States	Record daily precipitation	81.3 mm (3.2 in)	30 of 100 (Routine)
Hamilton	Canada	Record high maximum temperature	33.3 C (91.9 F)	29 of 100 (Routine)
Ashta	India	Record daily precipitation	91.4 mm (3.6 in)	29 of 100 (Routine)
Nikolaev	Ukraine	Record daily precipitation	46.0 mm (1.8 in)	29 of 100 (Routine)
Chicoutimi	Canada	Record high minimum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Pratt 3NW	United States	Record daily precipitation	47.0 mm (1.9 in)	28 of 100 (Routine)
Central Michigan UNIV	United States	Record high minimum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Auburn 5 ESE	United States	Record daily precipitation	43.7 mm (1.7 in)	28 of 100 (Routine)
Stillwater 2 W	United States	Record daily precipitation	41.1 mm (1.6 in)	28 of 100 (Routine)
Walgett Council Depot	Australia	Record high minimum temperature	15.0 C (59.0 F)	27 of 100 (Routine)
Clontarf	Canada	Record high minimum temperature	22.2 C (72.0 F)	27 of 100 (Routine)
Owen Sound	Canada	Record high minimum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Parry Sound	Canada	Record high minimum temperature	24.4 C (75.9 F)	27 of 100 (Routine)
Southampton	Canada	Record high minimum temperature	22.2 C (72.0 F)	27 of 100 (Routine)
Sandvig	Denmark	Record daily precipitation	27.1 mm (1.1 in)	27 of 100 (Routine)
Odesa	Ukraine	Record daily precipitation	67.2 mm (2.6 in)	27 of 100 (Routine)
E Tawas	United States	Record high minimum temperature	23.3 C (73.9 F)	27 of 100 (Routine)
Table Rock 4N	United States	Record daily precipitation	53.8 mm (2.1 in)	27 of 100 (Routine)
World Trade Ctr	United States	Record high maximum temperature	33.9 C (93.0 F)	27 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high maximum temperature	32.2 C (90.0 F)	27 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record high minimum temperature	24.4 C (75.9 F)	27 of 100 (Routine)
Brantford	Canada	Record high minimum temperature	22.8 C (73.0 F)	26 of 100 (Routine)
Peterborough	Canada	Record high maximum temperature	35.6 C (96.1 F)	26 of 100 (Routine)
Sotchi	Russia	Record high maximum temperature	33.6 C (92.5 F)	26 of 100 (Routine)
Emporia 1 S	United States	Record daily precipitation	69.6 mm (2.7 in)	26 of 100 (Routine)
Neosho Rapids	United States	Record daily precipitation	38.9 mm (1.5 in)	26 of 100 (Routine)
Osage City	United States	Record daily precipitation	56.9 mm (2.2 in)	26 of 100 (Routine)

Counts by Type and Timescale

681 records

Records set or tied on 15 August 1938 by type: Highest daily maximum 196, Lowest daily maximum 36, Highest daily minimum 205, Lowest daily minimum 40, Heaviest daily rainfall 204.

Records on 15 August 1938 by type
Record type	Records
Highest daily maximum	196
Lowest daily maximum	36
Highest daily minimum	205
Lowest daily minimum	40
Heaviest daily rainfall	204
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 August 1938 by timescale: all-time 8, monthly 24, daily 649.

How Much Records Were Beaten By

550 broken records

Margins by which the 550 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.4. Ties are not counted.

Top 20 by Significance

15 August 1938

Top 20 records on 15 August 1938 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 August 1938	Jennings, US	all-time rain	352.6 mm (13.9 in)	122.7 mm (4.8 in)	39 years	75 of 100 (Major)
15 August 1938	Lake Arthur 7 SW, US	all-time rain	355.6 mm (14.0 in)	148.6 mm (5.9 in)	24 years	70 of 100 (Major)
15 August 1938	Peterborough, CA	daily rain	57.7 mm (2.3 in)	41.2 mm (1.6 in)	28 years	55 of 100 (Notable)
15 August 1938	Cheneyville 1 NE, US	monthly rain	247.9 mm (9.8 in)	152.4 mm (6.0 in)	1 year	54 of 100 (Notable)
15 August 1938	Bagepalli, IN	all-time rain	156.7 mm (6.2 in)	33.0 mm (1.3 in)	16 years	50 of 100 (Notable)
15 August 1938	Clay Ctr, US	daily rain	75.7 mm (3.0 in)	49.3 mm (1.9 in)	35 years	49 of 100 (Notable)
15 August 1938	Woodville 4 ESE, US	daily rain	92.7 mm (3.6 in)	68.8 mm (2.7 in)	12 years	47 of 100 (Notable)
15 August 1938	Wichita, US	daily rain	89.4 mm (3.5 in)	63.5 mm (2.5 in)	12 years	47 of 100 (Notable)
15 August 1938	Minneapolis, US	daily rain	84.8 mm (3.3 in)	57.1 mm (2.2 in)	13 years	45 of 100 (Notable)
15 August 1938	Mio Hydro Plt, US	daily rain	44.7 mm (1.8 in)	26.9 mm (1.1 in)	39 years	44 of 100 (Notable)
15 August 1938	Newton, US	monthly rain	120.7 mm (4.8 in)	44.5 mm (1.8 in)	4 years	43 of 100 (Notable)
15 August 1938	Barud(Warud), IN	daily rain	98.3 mm (3.9 in)	60.2 mm (2.4 in)	15 years	41 of 100 (Notable)
15 August 1938	Manhattan, US	daily rain	83.8 mm (3.3 in)	52.8 mm (2.1 in)	35 years	40 of 100 (Notable)
15 August 1938	Alexandria, US	monthly rain	97.8 mm (3.9 in)	19.1 mm (0.8 in)	37 years	40 of 100 (Notable)
15 August 1938	Melville, US	daily rain	76.5 mm (3.0 in)	35.9 mm (1.4 in)	41 years	40 of 100 (Notable)
15 August 1938	Milwaukee Wb City, US	daily rain	67.8 mm (2.7 in)	26.1 mm (1.0 in)	35 years	40 of 100 (Notable)
15 August 1938	Wamego 4 W, US	daily rain	63.8 mm (2.5 in)	36.9 mm (1.5 in)	44 years	39 of 100 (Notable)
15 August 1938	Toronto, CA	daily high min	21.1 C (70.0 F)	1.1 C (2.0 F)	89 years	38 of 100 (Notable)
15 August 1938	El Dorado, US	daily rain	74.2 mm (2.9 in)	51.1 mm (2.0 in)	11 years	38 of 100 (Notable)
15 August 1938	Stanley Wwtp, US	daily rain	46.7 mm (1.8 in)	35.3 mm (1.4 in)	13 years	38 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

1793 to 1938

Records set or tied on this calendar date in each year from 1793 to 1938. 1938 had 681 records.

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

Records on 08-15 in each year
Year	Records
1793	2
1802	1
1805	1
1812	1
1821	1
1838	2
1839	1
1841	1
1844	1
1845	3
1852	1
1854	1
1856	1
1858	1
1861	3
1867	1
1868	2
1869	1
1873	2
1875	1
1876	2
1877	1
1878	1
1879	1
1880	3
1881	2
1882	2
1883	1
1884	2
1885	3
1886	1
1887	1
1888	3
1890	2
1891	2
1892	3
1893	3
1895	1
1896	9
1897	3
1898	1
1899	2
1900	6
1901	5
1902	10
1903	5
1904	17
1905	26
1906	8
1907	14
1908	15
1909	30
1910	16
1911	26
1912	34
1913	42
1914	11
1915	26
1916	223
1917	32
1918	23
1919	22
1920	59
1921	55
1922	86
1923	116
1924	220
1925	91
1926	115
1927	223
1928	271
1929	586
1930	274
1931	351
1932	368
1933	268
1934	992
1935	414
1936	867
1937	574
1938	681
1939	450
1940	372
1941	289
1942	377
1943	426
1944	610
1945	433
1946	285
1947	559
1948	366
1949	559
1950	317
1951	597
1952	596
1953	449
1954	481
1955	539
1956	390
1957	355
1958	1,092
1959	515
1960	417
1961	704
1962	1,052
1963	972
1964	1,185
1965	535
1966	340
1967	687
1968	1,002
1969	583
1970	382
1971	899
1972	613
1973	499
1974	512
1975	490
1976	1,345
1977	550
1978	841
1979	1,788
1980	745
1981	588
1982	479
1983	955
1984	622
1985	915
1986	1,283
1987	1,098
1988	1,479
1989	495
1990	758
1991	778
1992	1,638
1993	831
1994	1,073
1995	1,298
1996	929
1997	927
1998	861
1999	956
2000	932
2001	1,254
2002	1,307
2003	1,248
2004	1,424
2005	1,067
2006	923
2007	1,317
2008	964
2009	1,038
2010	1,622
2011	770
2012	654
2013	711
2014	583
2015	759
2016	707
2017	532
2018	328
2019	435
2020	1,327
2021	900
2022	692
2023	1,414
2024	729
2025	772
2026	975

Download the Data

Data for records on 1938-08-15: 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 20	511
20 to 40	25
40 to 60	8
60 to 80	3
80 to 100	0
100 to 120	0
120 to 140	1
140 to 160	2