Weather Records on 17 August 1939

364 weather records were set or tied worldwide on 17 August 1939. Highest significance: Clanton, US.

Key Facts for 17 August 1939

On 17 August 1939, 364 weather records were set or tied at long-record stations worldwide.
154 were record highs and 70 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 14 monthly and 350 daily.
Clanton set a daily record precipitation of 104.1 mm (4.1 in) on 17 August 1939.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 474 records.

Record Map

364 stations

364 station records on 17 August 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Clanton	United States	Record daily precipitation	104.1 mm (4.1 in)	55 of 100 (Notable)
De Funiak Springs 1 E	United States	Record daily precipitation	113.3 mm (4.5 in)	55 of 100 (Notable)
Union Springs 9 S	United States	Record daily precipitation	117.1 mm (4.6 in)	50 of 100 (Notable)
W Pt	United States	Record daily precipitation	80.0 mm (3.1 in)	47 of 100 (Notable)
Camp Hill 2NW	United States	Record daily precipitation	63.5 mm (2.5 in)	43 of 100 (Notable)
Prattville	United States	Record daily precipitation	78.7 mm (3.1 in)	42 of 100 (Notable)
Wetumpka	United States	Record daily precipitation	152.4 mm (6.0 in)	42 of 100 (Notable)
Ghatsila Sr	India	Record daily precipitation	156.2 mm (6.1 in)	40 of 100 (Notable)
Newnan 7 WNW	United States	Record daily precipitation	63.8 mm (2.5 in)	39 of 100 (Notable)
Tallapoosa 2 N	United States	Record daily precipitation	54.9 mm (2.2 in)	39 of 100 (Notable)
Griffin	United States	Record low maximum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Highland Home	United States	Record daily precipitation	72.4 mm (2.9 in)	34 of 100 (Routine)
Fulton	United States	Record daily precipitation	73.2 mm (2.9 in)	34 of 100 (Routine)
Lamar 7N	United States	Record daily precipitation	52.1 mm (2.1 in)	33 of 100 (Routine)
Amersfoort (Pol)	South Africa	Record daily precipitation	37.6 mm (1.5 in)	32 of 100 (Routine)
Dadeville	United States	Record daily precipitation	123.2 mm (4.9 in)	30 of 100 (Routine)
Ghatal	India	Record daily precipitation	63.5 mm (2.5 in)	29 of 100 (Routine)
Americus	United States	Record low maximum temperature	25.0 C (77.0 F)	29 of 100 (Routine)
Bar Harbor 3 NW	United States	Record daily precipitation	33.5 mm (1.3 in)	29 of 100 (Routine)
Kingstree	United States	Record daily precipitation	61.0 mm (2.4 in)	29 of 100 (Routine)
Greenville	United States	Record daily precipitation	53.1 mm (2.1 in)	28 of 100 (Routine)
Toccoa	United States	Record low maximum temperature	22.8 C (73.0 F)	28 of 100 (Routine)
Bainbridge	United States	Record low maximum temperature	26.7 C (80.1 F)	27 of 100 (Routine)
Monticello	United States	Record low maximum temperature	24.4 C (75.9 F)	27 of 100 (Routine)
Rushville	United States	Record daily precipitation	75.7 mm (3.0 in)	27 of 100 (Routine)
Magnolia	United States	Record daily precipitation	79.0 mm (3.1 in)	27 of 100 (Routine)
Greenville Dwtn AP	United States	Record daily precipitation	58.7 mm (2.3 in)	27 of 100 (Routine)
Hondo	United States	Record low maximum temperature	26.7 C (80.1 F)	27 of 100 (Routine)
Devgad	India	Record daily precipitation	96.5 mm (3.8 in)	26 of 100 (Routine)
Milledgeville	United States	Record low maximum temperature	23.9 C (75.0 F)	26 of 100 (Routine)
Gardiner	United States	Record daily precipitation	43.9 mm (1.7 in)	26 of 100 (Routine)
Rampur	India	Record daily precipitation	145.5 mm (5.7 in)	25 of 100 (Routine)
Rolfontein	South Africa	Record daily precipitation	33.5 mm (1.3 in)	25 of 100 (Routine)
Athens	United States	Record low maximum temperature	22.8 C (73.0 F)	25 of 100 (Routine)
Newport 1 NW	United States	Record low maximum temperature	23.9 C (75.0 F)	25 of 100 (Routine)
Calcutta/Alipore	India	Record daily precipitation	80.5 mm (3.2 in)	24 of 100 (Routine)
Tallapoosa 2 N	United States	Record low maximum temperature	23.9 C (75.0 F)	24 of 100 (Routine)
Uvalde	United States	Record daily precipitation	34.8 mm (1.4 in)	24 of 100 (Routine)
Balook	Australia	Record daily precipitation	26.4 mm (1.0 in)	23 of 100 (Routine)
Malvan	India	Record daily precipitation	87.6 mm (3.4 in)	23 of 100 (Routine)
Amlagora	India	Record daily precipitation	79.2 mm (3.1 in)	23 of 100 (Routine)
Tuskegee	United States	Record daily precipitation	58.4 mm (2.3 in)	23 of 100 (Routine)
Oakland	United States	Record high maximum temperature	35.6 C (96.1 F)	23 of 100 (Routine)
W Pt	United States	Record low maximum temperature	26.1 C (79.0 F)	23 of 100 (Routine)
Walhalla	United States	Record low maximum temperature	24.4 C (75.9 F)	23 of 100 (Routine)
Centennial 1NE	United States	Record high maximum temperature	29.4 C (84.9 F)	23 of 100 (Routine)
Vengurla	India	Record daily precipitation	120.1 mm (4.7 in)	22 of 100 (Routine)
Howrah	India	Record daily precipitation	66.3 mm (2.6 in)	22 of 100 (Routine)
Scottsboro	United States	Record low maximum temperature	26.7 C (80.1 F)	22 of 100 (Routine)
Troy	United States	Record low maximum temperature	27.2 C (81.0 F)	22 of 100 (Routine)
Los Gatos	United States	Record high maximum temperature	38.3 C (100.9 F)	22 of 100 (Routine)
Redding Fire STN 2	United States	Record high maximum temperature	41.7 C (107.1 F)	22 of 100 (Routine)
Santa Clara UNIV	United States	Record high maximum temperature	37.8 C (100.0 F)	22 of 100 (Routine)
Albany 3 SE	United States	Record low maximum temperature	26.7 C (80.1 F)	22 of 100 (Routine)
Dahlonega 4WSW	United States	Record low maximum temperature	23.3 C (73.9 F)	22 of 100 (Routine)
Washington 2 ESE	United States	Record low maximum temperature	25.6 C (78.1 F)	22 of 100 (Routine)
Monmouth	United States	Record daily precipitation	36.1 mm (1.4 in)	22 of 100 (Routine)
Willow City	United States	Record high minimum temperature	20.0 C (68.0 F)	22 of 100 (Routine)
Ranchi	India	Record daily precipitation	70.9 mm (2.8 in)	21 of 100 (Routine)
Vidisha	India	Record daily precipitation	81.3 mm (3.2 in)	21 of 100 (Routine)

Counts by Type and Timescale

364 records

Records set or tied on 17 August 1939 by type: Highest daily maximum 102, Lowest daily maximum 60, Highest daily minimum 52, Lowest daily minimum 10, Heaviest daily rainfall 140.

Records on 17 August 1939 by type
Record type	Records
Highest daily maximum	102
Lowest daily maximum	60
Highest daily minimum	52
Lowest daily minimum	10
Heaviest daily rainfall	140
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 1939 by timescale: all-time 0, monthly 14, daily 350.

How Much Records Were Beaten By

291 broken records

Margins by which the 291 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 80.3. Ties are not counted.

Top 20 by Significance

17 August 1939

Top 20 records on 17 August 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 1939	Clanton, US	daily rain	104.1 mm (4.1 in)	62.2 mm (2.4 in)	37 years	55 of 100 (Notable)
17 August 1939	De Funiak Springs 1 E, US	daily rain	113.3 mm (4.5 in)	69.6 mm (2.7 in)	39 years	55 of 100 (Notable)
17 August 1939	Union Springs 9 S, US	daily rain	117.1 mm (4.6 in)	80.3 mm (3.2 in)	21 years	50 of 100 (Notable)
17 August 1939	W Pt, US	daily rain	80.0 mm (3.1 in)	56.6 mm (2.2 in)	12 years	47 of 100 (Notable)
17 August 1939	Camp Hill 2NW, US	daily rain	63.5 mm (2.5 in)	39.4 mm (1.6 in)	33 years	43 of 100 (Notable)
17 August 1939	Prattville, US	daily rain	78.7 mm (3.1 in)	49.5 mm (1.9 in)	26 years	42 of 100 (Notable)
17 August 1939	Wetumpka, US	monthly rain	152.4 mm (6.0 in)	39.4 mm (1.6 in)	0 years	42 of 100 (Notable)
17 August 1939	Ghatsila Sr, IN	daily rain	156.2 mm (6.1 in)	64.0 mm (2.5 in)	21 years	40 of 100 (Notable)
17 August 1939	Newnan 7 WNW, US	daily rain	63.8 mm (2.5 in)	34.6 mm (1.4 in)	37 years	39 of 100 (Notable)
17 August 1939	Tallapoosa 2 N, US	daily rain	54.9 mm (2.2 in)	32.5 mm (1.3 in)	38 years	39 of 100 (Notable)
17 August 1939	Griffin, US	daily low max	22.2 C (72.0 F)	7.2 C (13.0 F)	25 years	37 of 100 (Notable)
17 August 1939	Highland Home, US	daily rain	72.4 mm (2.9 in)	32.3 mm (1.3 in)	26 years	34 of 100 (Routine)
17 August 1939	Fulton, US	daily rain	73.2 mm (2.9 in)	32.6 mm (1.3 in)	24 years	34 of 100 (Routine)
17 August 1939	Lamar 7N, US	daily rain	52.1 mm (2.1 in)	33.0 mm (1.3 in)	45 years	33 of 100 (Routine)
17 August 1939	Amersfoort (Pol), ZA	monthly rain	37.6 mm (1.5 in)	8.1 mm (0.32 in)	29 years	32 of 100 (Routine)
17 August 1939	Dadeville, US	monthly rain	123.2 mm (4.9 in)	26.7 mm (1.1 in)	3 years	30 of 100 (Routine)
17 August 1939	Ghatal, IN	daily rain	63.5 mm (2.5 in)	38.4 mm (1.5 in)	37 years	29 of 100 (Routine)
17 August 1939	Americus, US	daily low max	25.0 C (77.0 F)	5.0 C (9.0 F)	24 years	29 of 100 (Routine)
17 August 1939	Bar Harbor 3 NW, US	daily rain	33.5 mm (1.3 in)	24.6 mm (1.0 in)	29 years	29 of 100 (Routine)
17 August 1939	Kingstree, US	daily rain	61.0 mm (2.4 in)	25.9 mm (1.0 in)	32 years	29 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

1797 to 1939

Records set or tied on this calendar date in each year from 1797 to 1939. 1939 had 364 records.

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

Records on 08-17 in each year
Year	Records
1797	2
1802	2
1820	2
1837	1
1838	2
1841	2
1842	1
1845	2
1853	1
1854	1
1856	1
1857	1
1861	3
1862	1
1867	1
1868	3
1869	1
1872	1
1875	2
1876	5
1879	1
1881	1
1882	1
1883	2
1885	3
1886	1
1888	5
1891	1
1892	3
1893	2
1894	3
1895	2
1896	3
1897	1
1898	5
1899	8
1900	3
1901	14
1902	7
1903	6
1904	2
1905	11
1906	28
1907	9
1908	26
1909	24
1910	17
1911	18
1912	31
1913	79
1914	41
1915	28
1916	33
1917	35
1918	112
1919	37
1920	110
1921	37
1922	169
1923	161
1924	171
1925	130
1926	182
1927	228
1928	131
1929	243
1930	138
1931	302
1932	360
1933	260
1934	377
1935	437
1936	670
1937	726
1938	466
1939	364
1940	341
1941	378
1942	461
1943	743
1944	531
1945	387
1946	433
1947	682
1948	475
1949	371
1950	522
1951	413
1952	470
1953	345
1954	685
1955	465
1956	407
1957	504
1958	519
1959	543
1960	533
1961	998
1962	445
1963	650
1964	410
1965	641
1966	496
1967	679
1968	953
1969	593
1970	467
1971	447
1972	1,044
1973	750
1974	582
1975	612
1976	797
1977	1,216
1978	814
1979	1,464
1980	895
1981	1,112
1982	554
1983	1,574
1984	726
1985	948
1986	916
1987	1,150
1988	1,608
1989	687
1990	949
1991	560
1992	1,813
1993	803
1994	1,038
1995	1,724
1996	752
1997	1,544
1998	1,003
1999	697
2000	994
2001	1,101
2002	1,266
2003	948
2004	1,046
2005	722
2006	814
2007	1,646
2008	1,301
2009	922
2010	1,105
2011	956
2012	1,215
2013	802
2014	997
2015	890
2016	748
2017	544
2018	518
2019	467
2020	1,529
2021	800
2022	1,428
2023	1,032
2024	740
2025	538
2026	535

Download the Data

Data for records on 1939-08-17: 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	249
20 to 40	32
40 to 60	6
60 to 80	3
80 to 100	1