Weather Records on 31 August 1973

793 weather records were set or tied worldwide on 31 August 1973. Highest significance: Tehuantepec, MX.

Key Facts for 31 August 1973

On 31 August 1973, 793 weather records were set or tied at long-record stations worldwide.
308 were record highs and 175 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 39 monthly and 753 daily.
Tehuantepec set a daily record precipitation of 199.9 mm (7.9 in) on 31 August 1973.
Across 165 earlier years (1796 to 2026) the same calendar date averaged 434 records.

Record Map

793 stations

793 station records on 31 August 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 31 August 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Tehuantepec	Mexico	Record daily precipitation	199.9 mm (7.9 in)	46 of 100 (Notable)
Tomahawk Spirit Rsvr	United States	Record daily precipitation	100.3 mm (3.9 in)	45 of 100 (Notable)
Parabel'	Russia	Record daily precipitation	30.2 mm (1.2 in)	44 of 100 (Notable)
Russell	Canada	Record daily precipitation	40.1 mm (1.6 in)	43 of 100 (Notable)
Kargasok	Russia	Record daily precipitation	35.6 mm (1.4 in)	42 of 100 (Notable)
Kihnu	Estonia	Record daily precipitation	28.9 mm (1.1 in)	41 of 100 (Notable)
Cape May 2 NW	United States	Record high minimum temperature	23.9 C (75.0 F)	39 of 100 (Notable)
Everett	United States	Record low maximum temperature	12.8 C (55.0 F)	39 of 100 (Notable)
Montreal McGill	Canada	Record high minimum temperature	22.2 C (72.0 F)	38 of 100 (Notable)
El Reno 1 N	United States	Record high minimum temperature	26.7 C (80.1 F)	37 of 100 (Notable)
Vancouver 4 NNE	United States	Record low maximum temperature	15.0 C (59.0 F)	37 of 100 (Notable)
Ubinskoe	Russia	Record daily precipitation	36.4 mm (1.4 in)	36 of 100 (Notable)
Fargo Hector Intl AP	United States	Record daily precipitation	41.9 mm (1.6 in)	35 of 100 (Notable)
Higgins Lake	United States	Record daily precipitation	36.1 mm (1.4 in)	34 of 100 (Routine)
Durango	United States	Record daily precipitation	27.9 mm (1.1 in)	33 of 100 (Routine)
Dover	United States	Record high minimum temperature	24.4 C (75.9 F)	33 of 100 (Routine)
Hinckley	United States	Record daily precipitation	75.2 mm (3.0 in)	33 of 100 (Routine)
Martinsburg E W Virginia Rgnl	United States	Record high minimum temperature	21.7 C (71.1 F)	33 of 100 (Routine)
Waterfall	South Africa	Record daily precipitation	40.0 mm (1.6 in)	32 of 100 (Routine)
Roosevelt 1 S	United States	Record low minimum temperature	13.9 C (57.0 F)	32 of 100 (Routine)
Juchitan de Zaragoza	Mexico	Record daily precipitation	207.8 mm (8.2 in)	31 of 100 (Routine)
Pocomoke City	United States	Record high minimum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
Mt Morris 2W	United States	Record high maximum temperature	33.9 C (93.0 F)	31 of 100 (Routine)
Port Townsend	United States	Record low maximum temperature	13.9 C (57.0 F)	31 of 100 (Routine)
Sandsprings	Australia	Record daily precipitation	26.7 mm (1.1 in)	30 of 100 (Routine)
Banff	Canada	Record low maximum temperature	5.6 C (42.1 F)	30 of 100 (Routine)
C.A.E. Llera	Mexico	Record low minimum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Biser	Russia	Record low maximum temperature	5.2 C (41.4 F)	30 of 100 (Routine)
Oktjabrskij-Gorodok	Russia	Record low minimum temperature	0.8 C (33.4 F)	30 of 100 (Routine)
Carson City	United States	Record high minimum temperature	16.7 C (62.1 F)	30 of 100 (Routine)
Anacortes	United States	Record low maximum temperature	14.4 C (57.9 F)	30 of 100 (Routine)
W Palm Beach Intl AP	United States	Record low maximum temperature	27.8 C (82.0 F)	30 of 100 (Routine)
Spier Falls	United States	Record high maximum temperature	35.6 C (96.1 F)	29 of 100 (Routine)
Turgaj	Kazakhstan	Record low maximum temperature	17.3 C (63.1 F)	28 of 100 (Routine)
El Salto (Smn)	Mexico	Record high minimum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Pompano Beach	United States	Record daily precipitation	56.4 mm (2.2 in)	28 of 100 (Routine)
Boyds 2 NW	United States	Record high minimum temperature	25.6 C (78.1 F)	28 of 100 (Routine)
Gruver	United States	Record daily precipitation	40.9 mm (1.6 in)	28 of 100 (Routine)
Omak 4 N	United States	Record low maximum temperature	17.8 C (64.0 F)	28 of 100 (Routine)
Miami Beach	United States	Record daily precipitation	146.6 mm (5.8 in)	28 of 100 (Routine)
Canguaretama	Brazil	Record daily precipitation	40.0 mm (1.6 in)	27 of 100 (Routine)
Bella Coola	Canada	Record low minimum temperature	1.7 C (35.1 F)	27 of 100 (Routine)
Golden A	Canada	Record low maximum temperature	11.1 C (52.0 F)	27 of 100 (Routine)
Lac Vieux Desert	United States	Record daily precipitation	60.2 mm (2.4 in)	27 of 100 (Routine)
Miami Beach	United States	Record low minimum temperature	21.1 C (70.0 F)	27 of 100 (Routine)
Zinder	Niger	Record high maximum temperature	38.6 C (101.5 F)	26 of 100 (Routine)
Spicer	United States	Record high minimum temperature	10.6 C (51.1 F)	26 of 100 (Routine)
Gardiner	United States	Record high minimum temperature	18.3 C (64.9 F)	26 of 100 (Routine)
Washington Court House	United States	Record daily precipitation	40.9 mm (1.6 in)	26 of 100 (Routine)
Dufur	United States	Record low minimum temperature	0.6 C (33.1 F)	26 of 100 (Routine)
Powell River	Canada	Record low minimum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
High River	Canada	Record low maximum temperature	5.6 C (42.1 F)	25 of 100 (Routine)
Union Hidalgo	Mexico	Record daily precipitation	195.8 mm (7.7 in)	25 of 100 (Routine)
Laryak	Russia	Record daily precipitation	31.7 mm (1.2 in)	25 of 100 (Routine)
Tambov	Russia	Record low minimum temperature	2.5 C (36.5 F)	25 of 100 (Routine)
Marysville	United States	Record daily precipitation	42.7 mm (1.7 in)	25 of 100 (Routine)
Tenosique (Smn)	Mexico	Record low maximum temperature	26.7 C (80.1 F)	24 of 100 (Routine)
Storrs	United States	Record high minimum temperature	22.2 C (72.0 F)	24 of 100 (Routine)
Federal Pt	United States	Record daily precipitation	46.0 mm (1.8 in)	24 of 100 (Routine)
Hanover	United States	Record high maximum temperature	33.3 C (91.9 F)	24 of 100 (Routine)

Counts by Type and Timescale

793 records

Records set or tied on 31 August 1973 by type: Highest daily maximum 119, Lowest daily maximum 121, Highest daily minimum 189, Lowest daily minimum 54, Heaviest daily rainfall 309, Heaviest daily snowfall 1.

Records on 31 August 1973 by type
Record type	Records
Highest daily maximum	119
Lowest daily maximum	121
Highest daily minimum	189
Lowest daily minimum	54
Heaviest daily rainfall	309
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 31 August 1973 by timescale: all-time 1, monthly 39, daily 753.

How Much Records Were Beaten By

593 broken records

Margins by which the 593 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 124.0. Ties are not counted.

Top 20 by Significance

31 August 1973

Top 20 records on 31 August 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 August 1973	Tehuantepec, MX	daily rain	199.9 mm (7.9 in)	124.0 mm (4.9 in)	11 years	46 of 100 (Notable)
31 August 1973	Tomahawk Spirit Rsvr, US	all-time rain	100.3 mm (3.9 in)	8.9 mm (0.35 in)	37 years	45 of 100 (Notable)
31 August 1973	Parabel', RU	daily rain	30.2 mm (1.2 in)	22.5 mm (0.9 in)	11 years	44 of 100 (Notable)
31 August 1973	Russell, CA	daily rain	40.1 mm (1.6 in)	22.3 mm (0.9 in)	31 years	43 of 100 (Notable)
31 August 1973	Kargasok, RU	daily rain	35.6 mm (1.4 in)	20.1 mm (0.8 in)	24 years	42 of 100 (Notable)
31 August 1973	Kihnu, EE	daily rain	28.9 mm (1.1 in)	20.5 mm (0.8 in)	18 years	41 of 100 (Notable)
31 August 1973	Cape May 2 NW, US	daily high min	23.9 C (75.0 F)	0.6 C (1.1 F)	95 years	39 of 100 (Notable)
31 August 1973	Everett, US	monthly low max	12.8 C (55.0 F)	1.6 C (2.9 F)	55 years	39 of 100 (Notable)
31 August 1973	Montreal McGill, CA	daily high min	22.2 C (72.0 F)	0.5 C (0.9 F)	91 years	38 of 100 (Notable)
31 August 1973	El Reno 1 N, US	daily high min	26.7 C (80.1 F)	3.4 C (6.1 F)	60 years	37 of 100 (Notable)
31 August 1973	Vancouver 4 NNE, US	daily low max	15.0 C (59.0 F)	2.8 C (5.0 F)	76 years	37 of 100 (Notable)
31 August 1973	Ubinskoe, RU	daily rain	36.4 mm (1.4 in)	17.2 mm (0.7 in)	32 years	36 of 100 (Notable)
31 August 1973	Fargo Hector Intl AP, US	daily rain	41.9 mm (1.6 in)	25.9 mm (1.0 in)	26 years	35 of 100 (Notable)
31 August 1973	Higgins Lake, US	daily rain	36.1 mm (1.4 in)	18.6 mm (0.7 in)	35 years	34 of 100 (Routine)
31 August 1973	Durango, US	daily rain	27.9 mm (1.1 in)	16.2 mm (0.6 in)	10 years	33 of 100 (Routine)
31 August 1973	Dover, US	daily high min	24.4 C (75.9 F)	1.1 C (2.0 F)	74 years	33 of 100 (Routine)
31 August 1973	Hinckley, US	daily rain	75.2 mm (3.0 in)	28.2 mm (1.1 in)	28 years	33 of 100 (Routine)
31 August 1973	Martinsburg E W Virginia Rgnl, US	daily high min	21.7 C (71.1 F)	0.6 C (1.1 F)	80 years	33 of 100 (Routine)
31 August 1973	Waterfall, ZA	daily rain	40.0 mm (1.6 in)	36.0 mm (1.4 in)	15 years	32 of 100 (Routine)
31 August 1973	Roosevelt 1 S, US	daily low min	13.9 C (57.0 F)	1.7 C (3.1 F)	67 years	32 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

1796 to 1973

Records set or tied on this calendar date in each year from 1796 to 1973. 1973 had 793 records.

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

Records on 08-31 in each year
Year	Records
1796	1
1806	1
1807	2
1813	1
1814	1
1816	1
1827	1
1836	1
1846	1
1849	1
1851	1
1856	2
1858	1
1859	1
1860	1
1861	1
1863	1
1867	1
1869	1
1873	1
1875	1
1876	1
1877	2
1879	2
1881	3
1882	2
1885	1
1886	5
1887	1
1889	1
1890	2
1892	3
1893	1
1894	1
1895	1
1896	1
1897	5
1898	10
1899	4
1900	3
1901	5
1902	5
1903	16
1904	13
1905	8
1906	47
1907	6
1908	12
1909	39
1910	20
1911	31
1912	34
1913	40
1914	23
1915	71
1916	7
1917	60
1918	58
1919	25
1920	46
1921	86
1922	58
1923	63
1924	232
1925	111
1926	148
1927	103
1928	201
1929	300
1930	243
1931	192
1932	807
1933	424
1934	381
1935	540
1936	226
1937	508
1938	324
1939	296
1940	400
1941	528
1942	422
1943	650
1944	638
1945	572
1946	545
1947	473
1948	367
1949	409
1950	662
1951	910
1952	388
1953	1,054
1954	633
1955	539
1956	734
1957	317
1958	417
1959	496
1960	366
1961	625
1962	432
1963	415
1964	591
1965	886
1966	830
1967	952
1968	562
1969	474
1970	558
1971	326
1972	287
1973	793
1974	587
1975	658
1976	732
1977	621
1978	891
1979	400
1980	701
1981	692
1982	586
1983	788
1984	866
1985	854
1986	1,218
1987	836
1988	570
1989	622
1990	966
1991	848
1992	1,274
1993	1,286
1994	1,139
1995	1,077
1996	1,451
1997	943
1998	1,163
1999	988
2000	1,545
2001	944
2002	852
2003	1,232
2004	963
2005	1,782
2006	1,147
2007	1,110
2008	870
2009	1,224
2010	1,490
2011	994
2012	932
2013	771
2014	458
2015	1,074
2016	599
2017	596
2018	366
2019	781
2020	737
2021	553
2022	1,191
2023	600
2024	766
2025	307
2026	595

Download the Data

Data for records on 1973-08-31: 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	580
20 to 40	10
40 to 60	2
60 to 80	0
80 to 100	0
100 to 120	0
120 to 140	1