Weather Records on 17 August 1941

378 weather records were set or tied worldwide on 17 August 1941. Highest significance: Denison, US.

Key Facts for 17 August 1941

On 17 August 1941, 378 weather records were set or tied at long-record stations worldwide.
66 were record highs and 154 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 2 monthly and 374 daily.
Denison set a daily record precipitation of 85.6 mm (3.4 in) on 17 August 1941.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 474 records.

Record Map

378 stations

378 station records on 17 August 1941 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 1941: highest significance records shown on the map
Station	Country	Type	Value	Significance
Denison	United States	Record daily precipitation	85.6 mm (3.4 in)	54 of 100 (Notable)
Amta	India	Record daily precipitation	184.2 mm (7.3 in)	50 of 100 (Notable)
Tamluk	India	Record daily precipitation	259.1 mm (10.2 in)	48 of 100 (Notable)
Diamond Harbour	India	Record daily precipitation	194.3 mm (7.6 in)	47 of 100 (Notable)
Cape Norman	Canada	Record daily precipitation	38.9 mm (1.5 in)	45 of 100 (Notable)
Sabalgarh	India	Record daily precipitation	144.8 mm (5.7 in)	45 of 100 (Notable)
Shiggaon	India	Record daily precipitation	56.6 mm (2.2 in)	44 of 100 (Notable)
Basirhat	India	Record daily precipitation	107.7 mm (4.2 in)	44 of 100 (Notable)
Budge Budge	India	Record daily precipitation	140.2 mm (5.5 in)	42 of 100 (Notable)
Winterset 4N	United States	Record daily precipitation	67.8 mm (2.7 in)	42 of 100 (Notable)
Chirawa	India	Record daily precipitation	75.2 mm (3.0 in)	41 of 100 (Notable)
Ramnagar	India	Record daily precipitation	91.9 mm (3.6 in)	39 of 100 (Notable)
Silda Belpahari	India	Record daily precipitation	152.4 mm (6.0 in)	39 of 100 (Notable)
Parrsboro	Canada	Record daily precipitation	61.7 mm (2.4 in)	38 of 100 (Notable)
Moyna	India	Record daily precipitation	104.1 mm (4.1 in)	37 of 100 (Notable)
St Augustine	United States	Record daily precipitation	50.0 mm (2.0 in)	36 of 100 (Notable)
Chakradhanpur	India	Record daily precipitation	123.2 mm (4.9 in)	35 of 100 (Notable)
Port Lincoln (Woolga)	Australia	Record daily precipitation	26.2 mm (1.0 in)	34 of 100 (Routine)
Pearlington	United States	Record daily precipitation	59.9 mm (2.4 in)	34 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record daily precipitation	25.2 mm (1.0 in)	33 of 100 (Routine)
Uluberia	India	Record daily precipitation	161.3 mm (6.4 in)	33 of 100 (Routine)
Jodhpur	India	Record daily precipitation	53.3 mm (2.1 in)	32 of 100 (Routine)
Alpine	United States	Record daily precipitation	32.0 mm (1.3 in)	32 of 100 (Routine)
Mohanpur	India	Record daily precipitation	88.9 mm (3.5 in)	31 of 100 (Routine)
Humboldt	Canada	Record daily precipitation	30.0 mm (1.2 in)	28 of 100 (Routine)
Rajauli	India	Record daily precipitation	79.5 mm (3.1 in)	28 of 100 (Routine)
Onda	India	Record daily precipitation	85.1 mm (3.4 in)	28 of 100 (Routine)
Arambagh	India	Record daily precipitation	94.0 mm (3.7 in)	28 of 100 (Routine)
Walthill 1E	United States	Record daily precipitation	45.7 mm (1.8 in)	28 of 100 (Routine)
Midnapore	India	Record daily precipitation	99.6 mm (3.9 in)	27 of 100 (Routine)
O'Neill	United States	Record daily precipitation	46.2 mm (1.8 in)	27 of 100 (Routine)
Morganton	United States	Record low minimum temperature	12.2 C (54.0 F)	27 of 100 (Routine)
Bijaypur	India	Record daily precipitation	77.5 mm (3.1 in)	26 of 100 (Routine)
Olekminsk	Russia	Record low minimum temperature	1.2 C (34.2 F)	26 of 100 (Routine)
Alta	United States	Record low maximum temperature	16.7 C (62.1 F)	26 of 100 (Routine)
Rock Rapids	United States	Record low maximum temperature	17.8 C (64.0 F)	26 of 100 (Routine)
Dantan	India	Record daily precipitation	88.9 mm (3.5 in)	25 of 100 (Routine)
Ft Robinson	United States	Record low maximum temperature	20.6 C (69.1 F)	25 of 100 (Routine)
Nashua 2 NNW	United States	Record low minimum temperature	2.8 C (37.0 F)	25 of 100 (Routine)
Peterborough	Canada	Record low maximum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Truro Nsac	Canada	Record daily precipitation	39.4 mm (1.6 in)	24 of 100 (Routine)
Bagodar I	India	Record daily precipitation	101.6 mm (4.0 in)	24 of 100 (Routine)
Spencer 1 N	United States	Record low maximum temperature	18.9 C (66.0 F)	24 of 100 (Routine)
Purdum	United States	Record daily precipitation	32.8 mm (1.3 in)	24 of 100 (Routine)
La Delle 7 NE	United States	Record low maximum temperature	19.4 C (66.9 F)	24 of 100 (Routine)
Tropic	United States	Record low maximum temperature	18.9 C (66.0 F)	24 of 100 (Routine)
Balasore	India	Record daily precipitation	108.7 mm (4.3 in)	23 of 100 (Routine)
Panskura	India	Record daily precipitation	90.2 mm (3.6 in)	23 of 100 (Routine)
Blagovescensk	Russia	Record low minimum temperature	7.2 C (45.0 F)	23 of 100 (Routine)
Wisley	United Kingdom	Record daily precipitation	32.5 mm (1.3 in)	23 of 100 (Routine)
Grimes Pass 6 S	United States	Record daily precipitation	40.4 mm (1.6 in)	23 of 100 (Routine)
Osage	United States	Record low maximum temperature	20.6 C (69.1 F)	23 of 100 (Routine)
Baton Rouge	United States	Record high minimum temperature	25.6 C (78.1 F)	23 of 100 (Routine)
Elkins	United States	Record daily precipitation	36.1 mm (1.4 in)	23 of 100 (Routine)
Berens River	Canada	Record low maximum temperature	13.3 C (55.9 F)	22 of 100 (Routine)
Worthington	United States	Record low maximum temperature	17.2 C (63.0 F)	22 of 100 (Routine)
Coldwater	Canada	Record low maximum temperature	19.4 C (66.9 F)	21 of 100 (Routine)
Haliburton A	Canada	Record low maximum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Sonepat	India	Record daily precipitation	37.1 mm (1.5 in)	21 of 100 (Routine)
Effingham 3SW	United States	Record low maximum temperature	23.3 C (73.9 F)	21 of 100 (Routine)

Counts by Type and Timescale

378 records

Records set or tied on 17 August 1941 by type: Highest daily maximum 16, Lowest daily maximum 79, Highest daily minimum 50, Lowest daily minimum 75, Heaviest daily rainfall 158.

Records on 17 August 1941 by type
Record type	Records
Highest daily maximum	16
Lowest daily maximum	79
Highest daily minimum	50
Lowest daily minimum	75
Heaviest daily rainfall	158
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 1941 by timescale: all-time 2, monthly 2, daily 374.

How Much Records Were Beaten By

292 broken records

Margins by which the 292 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 191.8. Ties are not counted.

Top 20 by Significance

17 August 1941

Top 20 records on 17 August 1941 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 1941	Denison, US	daily rain	85.6 mm (3.4 in)	63.0 mm (2.5 in)	36 years	54 of 100 (Notable)
17 August 1941	Amta, IN	daily rain	184.2 mm (7.3 in)	120.7 mm (4.8 in)	20 years	50 of 100 (Notable)
17 August 1941	Tamluk, IN	daily rain	259.1 mm (10.2 in)	191.8 mm (7.6 in)	14 years	48 of 100 (Notable)
17 August 1941	Diamond Harbour, IN	daily rain	194.3 mm (7.6 in)	121.7 mm (4.8 in)	12 years	47 of 100 (Notable)
17 August 1941	Cape Norman, CA	daily rain	38.9 mm (1.5 in)	23.7 mm (0.9 in)	38 years	45 of 100 (Notable)
17 August 1941	Sabalgarh, IN	daily rain	144.8 mm (5.7 in)	111.8 mm (4.4 in)	4 years	45 of 100 (Notable)
17 August 1941	Shiggaon, IN	daily rain	56.6 mm (2.2 in)	36.0 mm (1.4 in)	3 years	44 of 100 (Notable)
17 August 1941	Basirhat, IN	daily rain	107.7 mm (4.2 in)	67.1 mm (2.6 in)	16 years	44 of 100 (Notable)
17 August 1941	Budge Budge, IN	daily rain	140.2 mm (5.5 in)	82.8 mm (3.3 in)	14 years	42 of 100 (Notable)
17 August 1941	Winterset 4N, US	daily rain	67.8 mm (2.7 in)	51.5 mm (2.0 in)	16 years	42 of 100 (Notable)
17 August 1941	Chirawa, IN	daily rain	75.2 mm (3.0 in)	54.1 mm (2.1 in)	7 years	41 of 100 (Notable)
17 August 1941	Ramnagar, IN	daily rain	91.9 mm (3.6 in)	83.3 mm (3.3 in)	4 years	39 of 100 (Notable)
17 August 1941	Silda Belpahari, IN	daily rain	152.4 mm (6.0 in)	65.0 mm (2.6 in)	18 years	39 of 100 (Notable)
17 August 1941	Parrsboro, CA	daily rain	61.7 mm (2.4 in)	42.9 mm (1.7 in)	11 years	38 of 100 (Notable)
17 August 1941	Moyna, IN	daily rain	104.1 mm (4.1 in)	55.8 mm (2.2 in)	20 years	37 of 100 (Notable)
17 August 1941	St Augustine, US	daily rain	50.0 mm (2.0 in)	37.3 mm (1.5 in)	19 years	36 of 100 (Notable)
17 August 1941	Chakradhanpur, IN	daily rain	123.2 mm (4.9 in)	63.5 mm (2.5 in)	7 years	35 of 100 (Notable)
17 August 1941	Port Lincoln (Woolga), AU	daily rain	26.2 mm (1.0 in)	10.5 mm (0.4 in)	40 years	34 of 100 (Routine)
17 August 1941	Pearlington, US	daily rain	59.9 mm (2.4 in)	39.1 mm (1.5 in)	19 years	34 of 100 (Routine)
17 August 1941	Munchen-Nymphenburg, DE	daily rain	25.2 mm (1.0 in)	9.2 mm (0.36 in)	59 years	33 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 1941

Records set or tied on this calendar date in each year from 1797 to 1941. 1941 had 378 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 1941-08-17: 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 25	259
25 to 50	16
50 to 75	10
75 to 100	3
100 to 125	3
125 to 150	0
150 to 175	0
175 to 200	1