Weather Records on 17 August 1946

433 weather records were set or tied worldwide on 17 August 1946. Highest significance: Kerkwerve, NL.

Key Facts for 17 August 1946

On 17 August 1946, 433 weather records were set or tied at long-record stations worldwide.
171 were record highs and 140 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 3 monthly and 428 daily.
Kerkwerve set a daily record precipitation of 40.5 mm (1.6 in) on 17 August 1946.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 474 records.

Record Map

433 stations

433 station records on 17 August 1946 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 1946: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kerkwerve	Netherlands	Record daily precipitation	40.5 mm (1.6 in)	57 of 100 (Notable)
1 WSW Princeton	United States	Record daily precipitation	101.6 mm (4.0 in)	49 of 100 (Notable)
Hamilton	Canada	Record daily precipitation	32.5 mm (1.3 in)	47 of 100 (Notable)
Oregon Wtr Wks	United States	Record daily precipitation	108.0 mm (4.3 in)	45 of 100 (Notable)
Sambhar	India	Record daily precipitation	121.2 mm (4.8 in)	44 of 100 (Notable)
Appleton	United States	Record daily precipitation	56.4 mm (2.2 in)	44 of 100 (Notable)
Nominingue	Canada	Record daily precipitation	67.3 mm (2.6 in)	42 of 100 (Notable)
Freeport	United States	Record daily precipitation	72.6 mm (2.9 in)	41 of 100 (Notable)
Chippewa Lake	United States	Record daily precipitation	53.3 mm (2.1 in)	41 of 100 (Notable)
Newport	United States	Record high maximum temperature	26.7 C (80.1 F)	41 of 100 (Notable)
Valparaiso Wtr Wks	United States	Record daily precipitation	86.9 mm (3.4 in)	40 of 100 (Notable)
Aurora Water	United States	Record daily precipitation	52.3 mm (2.1 in)	39 of 100 (Notable)
Ridgetown	Canada	Record daily precipitation	30.5 mm (1.2 in)	38 of 100 (Notable)
Oberlin	United States	Record daily precipitation	43.2 mm (1.7 in)	36 of 100 (Notable)
New London	United States	Record daily precipitation	43.2 mm (1.7 in)	36 of 100 (Notable)
Kamloops	Canada	Record low minimum temperature	4.4 C (39.9 F)	34 of 100 (Routine)
Guthrie Ctr	United States	Record daily precipitation	44.7 mm (1.8 in)	33 of 100 (Routine)
Rogersville 1 NE	United States	Record daily precipitation	55.9 mm (2.2 in)	32 of 100 (Routine)
Punahana	India	Record daily precipitation	54.9 mm (2.2 in)	31 of 100 (Routine)
Warren 3 S	United States	Record daily precipitation	33.0 mm (1.3 in)	31 of 100 (Routine)
Kanjirapally	India	Record daily precipitation	111.0 mm (4.4 in)	30 of 100 (Routine)
Waupaca	United States	Record daily precipitation	57.2 mm (2.3 in)	30 of 100 (Routine)
Ottawa 4SW	United States	Record daily precipitation	33.5 mm (1.3 in)	29 of 100 (Routine)
Clinton 2	United States	Record daily precipitation	63.2 mm (2.5 in)	29 of 100 (Routine)
Morrison	United States	Record daily precipitation	62.0 mm (2.4 in)	28 of 100 (Routine)
Vandergrift	United States	Record daily precipitation	35.6 mm (1.4 in)	28 of 100 (Routine)
Pincher Creek Town	Canada	Record low minimum temperature	-0.6 C (30.9 F)	27 of 100 (Routine)
Indian Head Cda	Canada	Record low maximum temperature	12.2 C (54.0 F)	27 of 100 (Routine)
Moscow U of I	United States	Record low minimum temperature	1.1 C (34.0 F)	27 of 100 (Routine)
Golconda River	United States	Record daily precipitation	56.4 mm (2.2 in)	27 of 100 (Routine)
Angelica	United States	Record daily precipitation	53.3 mm (2.1 in)	27 of 100 (Routine)
Butte Bert Mooney AP	United States	Record low minimum temperature	-1.1 C (30.0 F)	27 of 100 (Routine)
Summerland Cda	Canada	Record low minimum temperature	6.1 C (43.0 F)	26 of 100 (Routine)
Golden A	Canada	Record low minimum temperature	0.0 C (32.0 F)	26 of 100 (Routine)
Plymouth Pwr Substn	United States	Record daily precipitation	45.2 mm (1.8 in)	26 of 100 (Routine)
Clinton #1	United States	Record daily precipitation	56.4 mm (2.2 in)	26 of 100 (Routine)
Joliet	United States	Record daily precipitation	81.3 mm (3.2 in)	26 of 100 (Routine)
Moose Jaw Chab	Canada	Record low maximum temperature	16.1 C (61.0 F)	25 of 100 (Routine)
Simcoe	Canada	Record daily precipitation	26.4 mm (1.0 in)	25 of 100 (Routine)
Osage City	United States	Record high minimum temperature	26.7 C (80.1 F)	25 of 100 (Routine)
Warrenton 1 N	United States	Record high minimum temperature	25.0 C (77.0 F)	25 of 100 (Routine)
Lancaster 4 WSW	United States	Record daily precipitation	35.1 mm (1.4 in)	25 of 100 (Routine)
Lexington Bluegrass AP	United States	Record daily precipitation	49.8 mm (2.0 in)	25 of 100 (Routine)
Nimarana	India	Record daily precipitation	77.2 mm (3.0 in)	24 of 100 (Routine)
Brady Aznoe	United States	Record low minimum temperature	2.2 C (36.0 F)	24 of 100 (Routine)
Chinook	United States	Record low minimum temperature	0.6 C (33.1 F)	24 of 100 (Routine)
Rosalia	United States	Record low minimum temperature	0.6 C (33.1 F)	24 of 100 (Routine)
Regina Int'l A	Canada	Record low maximum temperature	15.0 C (59.0 F)	23 of 100 (Routine)
Calarasi	Romania	Record high maximum temperature	37.2 C (99.0 F)	23 of 100 (Routine)
Durham	United Kingdom	Record low minimum temperature	3.9 C (39.0 F)	23 of 100 (Routine)
Columbia City	United States	Record daily precipitation	30.7 mm (1.2 in)	23 of 100 (Routine)
Choteau	United States	Record low minimum temperature	1.1 C (34.0 F)	23 of 100 (Routine)
Towanda 1 S	United States	Record daily precipitation	39.1 mm (1.5 in)	23 of 100 (Routine)
Russellville	United States	Record high minimum temperature	24.4 C (75.9 F)	22 of 100 (Routine)
Two Buttes	United States	Record low minimum temperature	9.4 C (48.9 F)	22 of 100 (Routine)
Saint Maries	United States	Record low minimum temperature	0.6 C (33.1 F)	22 of 100 (Routine)
Rock Rapids	United States	Record high maximum temperature	36.1 C (97.0 F)	22 of 100 (Routine)
Tipton	United States	Record daily precipitation	58.7 mm (2.3 in)	22 of 100 (Routine)
Middlesboro Fire Dept	United States	Record daily precipitation	70.9 mm (2.8 in)	22 of 100 (Routine)
Frederick	United States	Record high minimum temperature	26.7 C (80.1 F)	22 of 100 (Routine)

Counts by Type and Timescale

433 records

Records set or tied on 17 August 1946 by type: Highest daily maximum 75, Lowest daily maximum 37, Highest daily minimum 96, Lowest daily minimum 103, Heaviest daily rainfall 122.

Records on 17 August 1946 by type
Record type	Records
Highest daily maximum	75
Lowest daily maximum	37
Highest daily minimum	96
Lowest daily minimum	103
Heaviest daily rainfall	122
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 August 1946 by timescale: all-time 2, monthly 3, daily 428.

How Much Records Were Beaten By

331 broken records

Margins by which the 331 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 73.2. Ties are not counted.

Top 20 by Significance

17 August 1946

Top 20 records on 17 August 1946 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 1946	Kerkwerve, NL	daily rain	40.5 mm (1.6 in)	20.5 mm (0.8 in)	64 years	57 of 100 (Notable)
17 August 1946	1 WSW Princeton, US	daily rain	101.6 mm (4.0 in)	66.0 mm (2.6 in)	39 years	49 of 100 (Notable)
17 August 1946	Hamilton, CA	daily rain	32.5 mm (1.3 in)	20.8 mm (0.8 in)	58 years	47 of 100 (Notable)
17 August 1946	Oregon Wtr Wks, US	all-time rain	108.0 mm (4.3 in)	20.4 mm (0.8 in)	24 years	45 of 100 (Notable)
17 August 1946	Sambhar, IN	daily rain	121.2 mm (4.8 in)	73.2 mm (2.9 in)	19 years	44 of 100 (Notable)
17 August 1946	Appleton, US	daily rain	56.4 mm (2.2 in)	38.9 mm (1.5 in)	8 years	44 of 100 (Notable)
17 August 1946	Nominingue, CA	daily rain	67.3 mm (2.6 in)	44.7 mm (1.8 in)	8 years	42 of 100 (Notable)
17 August 1946	Freeport, US	daily rain	72.6 mm (2.9 in)	47.2 mm (1.9 in)	24 years	41 of 100 (Notable)
17 August 1946	Chippewa Lake, US	daily rain	53.3 mm (2.1 in)	30.2 mm (1.2 in)	24 years	41 of 100 (Notable)
17 August 1946	Newport, US	daily high max	26.7 C (80.1 F)	5.6 C (10.1 F)	43 years	41 of 100 (Notable)
17 August 1946	Valparaiso Wtr Wks, US	daily rain	86.9 mm (3.4 in)	50.3 mm (2.0 in)	11 years	40 of 100 (Notable)
17 August 1946	Aurora Water, US	daily rain	52.3 mm (2.1 in)	33.2 mm (1.3 in)	40 years	39 of 100 (Notable)
17 August 1946	Ridgetown, CA	daily rain	30.5 mm (1.2 in)	17.8 mm (0.7 in)	58 years	38 of 100 (Notable)
17 August 1946	Oberlin, US	daily rain	43.2 mm (1.7 in)	26.4 mm (1.0 in)	32 years	36 of 100 (Notable)
17 August 1946	New London, US	daily rain	43.2 mm (1.7 in)	28.0 mm (1.1 in)	33 years	36 of 100 (Notable)
17 August 1946	Kamloops, CA	daily low min	4.4 C (39.9 F)	3.9 C (7.0 F)	53 years	34 of 100 (Routine)
17 August 1946	Guthrie Ctr, US	daily rain	44.7 mm (1.8 in)	25.9 mm (1.0 in)	44 years	33 of 100 (Routine)
17 August 1946	Rogersville 1 NE, US	daily rain	55.9 mm (2.2 in)	29.5 mm (1.2 in)	3 years	32 of 100 (Routine)
17 August 1946	Punahana, IN	daily rain	54.9 mm (2.2 in)	34.6 mm (1.4 in)	40 years	31 of 100 (Routine)
17 August 1946	Warren 3 S, US	daily rain	33.0 mm (1.3 in)	14.5 mm (0.6 in)	48 years	31 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 1946

Records set or tied on this calendar date in each year from 1797 to 1946. 1946 had 433 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 1946-08-17: 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 10	274
10 to 20	31
20 to 30	14
30 to 40	7
40 to 50	2
50 to 60	1
60 to 70	1
70 to 80	1