Weather Records on 17 August 1973

750 weather records were set or tied worldwide on 17 August 1973. Highest significance: Keg River, CA.

Key Facts for 17 August 1973

On 17 August 1973, 750 weather records were set or tied at long-record stations worldwide.
242 were record highs and 221 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 19 monthly and 730 daily.
Keg River set a monthly record daily precipitation of 59.4 mm (2.3 in) on 17 August 1973.
Across 162 earlier years (1797 to 2026) the same calendar date averaged 472 records.

Record Map

750 stations

750 station records on 17 August 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 August 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Keg River	Canada	Record daily precipitation	59.4 mm (2.3 in)	61 of 100 (Major)
Wyandra Railway St	Australia	Record daily precipitation	30.0 mm (1.2 in)	56 of 100 (Notable)
Fort Smith A	Canada	Record daily precipitation	29.7 mm (1.2 in)	50 of 100 (Notable)
Glenorie	Australia	Record daily precipitation	28.2 mm (1.1 in)	47 of 100 (Notable)
Kenilworth	Australia	Record daily precipitation	59.9 mm (2.4 in)	47 of 100 (Notable)
Ehrenberg	United States	Record daily precipitation	58.4 mm (2.3 in)	45 of 100 (Notable)
White Oak 2 N	United States	Record daily precipitation	77.0 mm (3.0 in)	45 of 100 (Notable)
Fort St James	Canada	Record low maximum temperature	6.7 C (44.1 F)	43 of 100 (Notable)
Beaverlodge Cda	Canada	Record daily snowfall	9.7 cm (3.8 in)	43 of 100 (Notable)
Grande Prairie A	Canada	Record daily precipitation	33.5 mm (1.3 in)	43 of 100 (Notable)
Newberry	United States	Record daily precipitation	87.4 mm (3.4 in)	43 of 100 (Notable)
Weribone	Australia	Record daily precipitation	34.3 mm (1.4 in)	42 of 100 (Notable)
Werrina	Australia	Record daily precipitation	29.0 mm (1.1 in)	42 of 100 (Notable)
Woodlands	Australia	Record daily precipitation	48.5 mm (1.9 in)	42 of 100 (Notable)
Cambridge Galt Moe	Canada	Record daily precipitation	31.8 mm (1.3 in)	42 of 100 (Notable)
Jonkoping	Sweden	Record high maximum temperature	28.2 C (82.8 F)	42 of 100 (Notable)
Hastings Dam 2	United States	Record daily precipitation	62.0 mm (2.4 in)	42 of 100 (Notable)
Bourke Post Office	Australia	Record high minimum temperature	12.6 C (54.7 F)	41 of 100 (Notable)
Izium	Ukraine	Record daily precipitation	39.8 mm (1.6 in)	41 of 100 (Notable)
Rhinelander	United States	Record daily precipitation	70.6 mm (2.8 in)	41 of 100 (Notable)
Faribault	United States	Record daily precipitation	36.1 mm (1.4 in)	40 of 100 (Notable)
Brule Island	United States	Record daily precipitation	45.7 mm (1.8 in)	40 of 100 (Notable)
Somerton Post Office	Australia	Record daily precipitation	40.1 mm (1.6 in)	39 of 100 (Notable)
Orono	Canada	Record daily precipitation	30.2 mm (1.2 in)	39 of 100 (Notable)
New Iberia AP - Acadiana Rgnl	United States	Record low maximum temperature	26.1 C (79.0 F)	39 of 100 (Notable)
Greensboro	United States	Record daily precipitation	50.3 mm (2.0 in)	38 of 100 (Notable)
Beckley Va Hospital	United States	Record daily precipitation	57.2 mm (2.3 in)	38 of 100 (Notable)
Escanaba	United States	Record daily precipitation	29.7 mm (1.2 in)	38 of 100 (Notable)
Byzantium	Australia	Record daily precipitation	41.9 mm (1.6 in)	37 of 100 (Notable)
Bancroft	Canada	Record daily precipitation	36.3 mm (1.4 in)	37 of 100 (Notable)
Paulding	United States	Record daily precipitation	60.7 mm (2.4 in)	37 of 100 (Notable)
Mungallala	Australia	Record daily precipitation	36.3 mm (1.4 in)	36 of 100 (Notable)
Indian Head Cda	Canada	Record high minimum temperature	19.4 C (66.9 F)	36 of 100 (Notable)
Kirchdorf/Poel	Germany	Record high maximum temperature	29.5 C (85.1 F)	35 of 100 (Notable)
Mazapa	Mexico	Record daily precipitation	40.9 mm (1.6 in)	35 of 100 (Notable)
Inverell Comparison	Australia	Record high minimum temperature	13.5 C (56.3 F)	34 of 100 (Routine)
Big Creek	Canada	Record low maximum temperature	7.8 C (46.0 F)	34 of 100 (Routine)
Surgut	Russia	Record high minimum temperature	17.2 C (63.0 F)	34 of 100 (Routine)
Butka	Russia	Record daily precipitation	32.9 mm (1.3 in)	34 of 100 (Routine)
Victor	United States	Record high minimum temperature	13.3 C (55.9 F)	34 of 100 (Routine)
Goondiwindi Post Office	Australia	Record high minimum temperature	16.0 C (60.8 F)	33 of 100 (Routine)
Fort St John A	Canada	Record daily precipitation	32.5 mm (1.3 in)	33 of 100 (Routine)
Fairview	Canada	Record daily precipitation	30.5 mm (1.2 in)	33 of 100 (Routine)
Aquiles Serdan 46	Mexico	Record daily precipitation	34.5 mm (1.4 in)	33 of 100 (Routine)
Jemez Springs	United States	Record low minimum temperature	6.1 C (43.0 F)	33 of 100 (Routine)
Warra Post Office	Australia	Record daily precipitation	29.0 mm (1.1 in)	32 of 100 (Routine)
Boatman Station	Australia	Record daily precipitation	65.0 mm (2.6 in)	32 of 100 (Routine)
Barkerville	Canada	Record low maximum temperature	5.0 C (41.0 F)	32 of 100 (Routine)
Grande Prairie A	Canada	Record daily snowfall	19.3 cm (7.6 in)	32 of 100 (Routine)
Regina Int'l A	Canada	Record high minimum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Vestervig	Denmark	Record high maximum temperature	26.2 C (79.2 F)	32 of 100 (Routine)
Piaxtla	Mexico	Record daily precipitation	40.4 mm (1.6 in)	32 of 100 (Routine)
Karymskaja	Russia	Record daily precipitation	34.7 mm (1.4 in)	32 of 100 (Routine)
Pickensville	United States	Record daily precipitation	59.4 mm (2.3 in)	32 of 100 (Routine)
Wupatki Nm	United States	Record daily precipitation	31.5 mm (1.2 in)	32 of 100 (Routine)
Bailey	United States	Record high minimum temperature	10.6 C (51.1 F)	32 of 100 (Routine)
Manassa	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Westfield 2 SSE	United States	Record daily precipitation	62.7 mm (2.5 in)	32 of 100 (Routine)
Hood Rvr Exp STN	United States	Record low maximum temperature	18.3 C (64.9 F)	32 of 100 (Routine)
Spearfish	United States	Record high minimum temperature	22.8 C (73.0 F)	32 of 100 (Routine)

Counts by Type and Timescale

750 records

Records set or tied on 17 August 1973 by type: Highest daily maximum 103, Lowest daily maximum 106, Highest daily minimum 139, Lowest daily minimum 115, Heaviest daily rainfall 284, Heaviest daily snowfall 3.

Records on 17 August 1973 by type
Record type	Records
Highest daily maximum	103
Lowest daily maximum	106
Highest daily minimum	139
Lowest daily minimum	115
Heaviest daily rainfall	284
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 17 August 1973 by timescale: all-time 1, monthly 19, daily 730.

How Much Records Were Beaten By

613 broken records

Margins by which the 613 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 97.0. Ties are not counted.

Top 20 by Significance

17 August 1973

Top 20 records on 17 August 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 August 1973	Keg River, CA	monthly rain	59.4 mm (2.3 in)	23.1 mm (0.9 in)	38 years	61 of 100 (Major)
17 August 1973	Wyandra Railway St, AU	daily rain	30.0 mm (1.2 in)	19.6 mm (0.8 in)	72 years	56 of 100 (Notable)
17 August 1973	Fort Smith A, CA	daily rain	29.7 mm (1.2 in)	27.2 mm (1.1 in)	24 years	50 of 100 (Notable)
17 August 1973	Glenorie, AU	daily rain	28.2 mm (1.1 in)	28.2 mm (1.1 in)	44 years	47 of 100 (Notable)
17 August 1973	Kenilworth, AU	daily rain	59.9 mm (2.4 in)	36.0 mm (1.4 in)	36 years	47 of 100 (Notable)
17 August 1973	Ehrenberg, US	daily rain	58.4 mm (2.3 in)	43.9 mm (1.7 in)	31 years	45 of 100 (Notable)
17 August 1973	White Oak 2 N, US	daily rain	77.0 mm (3.0 in)	52.6 mm (2.1 in)	31 years	45 of 100 (Notable)
17 August 1973	Fort St James, CA	daily low max	6.7 C (44.1 F)	6.6 C (11.9 F)	72 years	43 of 100 (Notable)
17 August 1973	Beaverlodge Cda, CA	daily snowfall	9.7 cm (3.8 in)	9.7 cm (3.8 in)	60 years	43 of 100 (Notable)
17 August 1973	Grande Prairie A, CA	daily rain	33.5 mm (1.3 in)	22.3 mm (0.9 in)	19 years	43 of 100 (Notable)
17 August 1973	Newberry, US	daily rain	87.4 mm (3.4 in)	44.2 mm (1.7 in)	24 years	43 of 100 (Notable)
17 August 1973	Weribone, AU	daily rain	34.3 mm (1.4 in)	19.6 mm (0.8 in)	55 years	42 of 100 (Notable)
17 August 1973	Werrina, AU	daily rain	29.0 mm (1.1 in)	27.0 mm (1.1 in)	0 years	42 of 100 (Notable)
17 August 1973	Woodlands, AU	daily rain	48.5 mm (1.9 in)	23.9 mm (0.9 in)	36 years	42 of 100 (Notable)
17 August 1973	Cambridge Galt Moe, CA	daily rain	31.8 mm (1.3 in)	14.3 mm (0.6 in)	77 years	42 of 100 (Notable)
17 August 1973	Jonkoping, SE	daily high max	28.2 C (82.8 F)	3.7 C (6.7 F)	72 years	42 of 100 (Notable)
17 August 1973	Hastings Dam 2, US	daily rain	62.0 mm (2.4 in)	47.0 mm (1.9 in)	14 years	42 of 100 (Notable)
17 August 1973	Bourke Post Office, AU	daily high min	12.6 C (54.7 F)	0.4 C (0.7 F)	101 years	41 of 100 (Notable)
17 August 1973	Izium, UA	daily rain	39.8 mm (1.6 in)	27.3 mm (1.1 in)	6 years	41 of 100 (Notable)
17 August 1973	Rhinelander, US	daily rain	70.6 mm (2.8 in)	34.5 mm (1.4 in)	26 years	41 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

1797 to 1973

Records set or tied on this calendar date in each year from 1797 to 1973. 1973 had 750 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 1973-08-17: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	576
20 to 40	29
40 to 60	6
60 to 80	1
80 to 100	1