Weather Records on 31 July 1973

583 weather records were set or tied worldwide on 31 July 1973. Highest significance: Sonora, US.

Key Facts for 31 July 1973

On 31 July 1973, 583 weather records were set or tied at long-record stations worldwide.
112 were record highs and 155 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 5 monthly and 577 daily.
Sonora set a daily record precipitation of 82.6 mm (3.3 in) on 31 July 1973.
Across 155 earlier years (1804 to 2026) the same calendar date averaged 470 records.

Record Map

583 stations

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

Weather records on 31 July 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sonora	United States	Record daily precipitation	82.6 mm (3.3 in)	59 of 100 (Notable)
Keithville	United States	Record daily precipitation	141.2 mm (5.6 in)	57 of 100 (Notable)
Holly	United States	Record daily precipitation	51.6 mm (2.0 in)	54 of 100 (Notable)
Zhigansk	Russia	Record daily precipitation	41.8 mm (1.6 in)	52 of 100 (Notable)
Mount Uniacke	Canada	Record daily precipitation	59.7 mm (2.4 in)	50 of 100 (Notable)
Cross Plains	United States	Record daily precipitation	70.4 mm (2.8 in)	50 of 100 (Notable)
Bethesdaweg (Sar)	South Africa	Record daily precipitation	38.0 mm (1.5 in)	49 of 100 (Notable)
Cambridge Galt Moe	Canada	Record daily precipitation	35.6 mm (1.4 in)	47 of 100 (Notable)
Touws River	South Africa	Record daily precipitation	29.5 mm (1.2 in)	47 of 100 (Notable)
Blytheville	United States	Record daily precipitation	91.4 mm (3.6 in)	47 of 100 (Notable)
Mooredale	South Africa	Record daily precipitation	34.5 mm (1.4 in)	46 of 100 (Notable)
Parry Sound	Canada	Record daily precipitation	56.4 mm (2.2 in)	45 of 100 (Notable)
Goodwell Rsch STN	United States	Record daily precipitation	45.7 mm (1.8 in)	45 of 100 (Notable)
El Chico	Mexico	Record daily precipitation	45.5 mm (1.8 in)	42 of 100 (Notable)
Barkestad	Norway	Record daily precipitation	34.2 mm (1.3 in)	42 of 100 (Notable)
Carthage	United States	Record daily precipitation	48.8 mm (1.9 in)	41 of 100 (Notable)
San Saba	United States	Record daily precipitation	33.5 mm (1.3 in)	40 of 100 (Notable)
Biskra	Algeria	Record low maximum temperature	33.0 C (91.4 F)	39 of 100 (Notable)
Marseilles Lock/Dam	United States	Record daily precipitation	72.4 mm (2.9 in)	39 of 100 (Notable)
Fischers Store	United States	Record daily precipitation	30.5 mm (1.2 in)	39 of 100 (Notable)
Turi	Estonia	Record daily precipitation	77.8 mm (3.1 in)	38 of 100 (Notable)
Brewton 3 SSE	United States	Record daily precipitation	71.9 mm (2.8 in)	38 of 100 (Notable)
Kayenta	United States	Record low maximum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Fordyce	United States	Record daily precipitation	51.1 mm (2.0 in)	38 of 100 (Notable)
Newton	United States	Record low maximum temperature	22.2 C (72.0 F)	38 of 100 (Notable)
Lockwood	United States	Record daily precipitation	56.1 mm (2.2 in)	38 of 100 (Notable)
Oden 1 SE	United States	Record daily precipitation	66.0 mm (2.6 in)	37 of 100 (Notable)
Okay	United States	Record daily precipitation	35.6 mm (1.4 in)	37 of 100 (Notable)
Brunswick	United States	Record daily precipitation	59.2 mm (2.3 in)	37 of 100 (Notable)
Wheatfield	United States	Record daily precipitation	47.8 mm (1.9 in)	37 of 100 (Notable)
Benton	United States	Record daily precipitation	99.8 mm (3.9 in)	36 of 100 (Notable)
Camden 1	United States	Record daily precipitation	49.8 mm (2.0 in)	36 of 100 (Notable)
Bridgeport	United States	Record daily precipitation	74.9 mm (2.9 in)	36 of 100 (Notable)
Buffalo	United States	Record daily precipitation	53.8 mm (2.1 in)	36 of 100 (Notable)
Tulbagh (Pol)	South Africa	Record daily precipitation	29.0 mm (1.1 in)	35 of 100 (Notable)
E Tawas	United States	Record daily precipitation	44.5 mm (1.8 in)	35 of 100 (Notable)
Alpine	United States	Record low maximum temperature	25.6 C (78.1 F)	35 of 100 (Notable)
Scott	United States	Record daily precipitation	46.2 mm (1.8 in)	34 of 100 (Routine)
Elk	United States	Record low maximum temperature	23.3 C (73.9 F)	33 of 100 (Routine)
Smithville	United States	Record daily precipitation	48.8 mm (1.9 in)	33 of 100 (Routine)
Gainesville	United States	Record low maximum temperature	27.8 C (82.0 F)	33 of 100 (Routine)
Roy	United States	Record low minimum temperature	9.4 C (48.9 F)	32 of 100 (Routine)
El Dorado Goodwin Fld	United States	Record daily precipitation	45.2 mm (1.8 in)	32 of 100 (Routine)
Noupoort	South Africa	Record daily precipitation	25.5 mm (1.0 in)	31 of 100 (Routine)
Hot Springs 1 NNE	United States	Record daily precipitation	58.2 mm (2.3 in)	31 of 100 (Routine)
Jennings	United States	Record high minimum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Ironwood	United States	Record low maximum temperature	13.9 C (57.0 F)	31 of 100 (Routine)
Anthony	United States	Record daily precipitation	42.2 mm (1.7 in)	31 of 100 (Routine)
Juchitan de Zaragoza	Mexico	Record high maximum temperature	40.0 C (104.0 F)	30 of 100 (Routine)
Villiersdorp	South Africa	Record daily precipitation	43.0 mm (1.7 in)	30 of 100 (Routine)
Ukiah	United States	Record high maximum temperature	40.6 C (105.1 F)	30 of 100 (Routine)
Walnut 4S	United States	Record daily precipitation	42.2 mm (1.7 in)	30 of 100 (Routine)
Ontonagon	United States	Record low maximum temperature	16.1 C (61.0 F)	30 of 100 (Routine)
Ripley	United States	Record high minimum temperature	22.8 C (73.0 F)	30 of 100 (Routine)
Eastland	United States	Record daily precipitation	33.5 mm (1.3 in)	30 of 100 (Routine)
Ogallala	United States	Record low maximum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Tuskahoma	United States	Record daily precipitation	53.1 mm (2.1 in)	29 of 100 (Routine)
Junction 4SSW	United States	Record daily precipitation	44.5 mm (1.8 in)	28 of 100 (Routine)
Rest Lake	United States	Record low maximum temperature	15.0 C (59.0 F)	28 of 100 (Routine)
Coppermine	Canada	Record high minimum temperature	12.2 C (54.0 F)	27 of 100 (Routine)

Counts by Type and Timescale

583 records

Records set or tied on 31 July 1973 by type: Highest daily maximum 63, Lowest daily maximum 93, Highest daily minimum 49, Lowest daily minimum 62, Heaviest daily rainfall 316.

Records on 31 July 1973 by type
Record type	Records
Highest daily maximum	63
Lowest daily maximum	93
Highest daily minimum	49
Lowest daily minimum	62
Heaviest daily rainfall	316
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 31 July 1973 by timescale: all-time 1, monthly 5, daily 577.

How Much Records Were Beaten By

489 broken records

Margins by which the 489 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 77.4. Ties are not counted.

Top 20 by Significance

31 July 1973

Top 20 records on 31 July 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
31 July 1973	Sonora, US	daily rain	82.6 mm (3.3 in)	57.2 mm (2.3 in)	58 years	59 of 100 (Notable)
31 July 1973	Keithville, US	monthly rain	141.2 mm (5.6 in)	77.4 mm (3.0 in)	14 years	57 of 100 (Notable)
31 July 1973	Holly, US	daily rain	51.6 mm (2.0 in)	32.0 mm (1.3 in)	60 years	54 of 100 (Notable)
31 July 1973	Zhigansk, RU	daily rain	41.8 mm (1.6 in)	36.0 mm (1.4 in)	30 years	52 of 100 (Notable)
31 July 1973	Mount Uniacke, CA	daily rain	59.7 mm (2.4 in)	52.3 mm (2.1 in)	19 years	50 of 100 (Notable)
31 July 1973	Cross Plains, US	daily rain	70.4 mm (2.8 in)	59.7 mm (2.4 in)	27 years	50 of 100 (Notable)
31 July 1973	Bethesdaweg (Sar), ZA	daily rain	38.0 mm (1.5 in)	24.3 mm (1.0 in)	32 years	49 of 100 (Notable)
31 July 1973	Cambridge Galt Moe, CA	daily rain	35.6 mm (1.4 in)	15.3 mm (0.6 in)	88 years	47 of 100 (Notable)
31 July 1973	Touws River, ZA	daily rain	29.5 mm (1.2 in)	16.8 mm (0.7 in)	48 years	47 of 100 (Notable)
31 July 1973	Blytheville, US	daily rain	91.4 mm (3.6 in)	53.3 mm (2.1 in)	24 years	47 of 100 (Notable)
31 July 1973	Mooredale, ZA	daily rain	34.5 mm (1.4 in)	25.4 mm (1.0 in)	32 years	46 of 100 (Notable)
31 July 1973	Parry Sound, CA	daily rain	56.4 mm (2.2 in)	14.5 mm (0.6 in)	68 years	45 of 100 (Notable)
31 July 1973	Goodwell Rsch STN, US	daily rain	45.7 mm (1.8 in)	25.9 mm (1.0 in)	60 years	45 of 100 (Notable)
31 July 1973	El Chico, MX	daily rain	45.5 mm (1.8 in)	31.5 mm (1.2 in)	44 years	42 of 100 (Notable)
31 July 1973	Barkestad, NO	daily rain	34.2 mm (1.3 in)	14.2 mm (0.6 in)	48 years	42 of 100 (Notable)
31 July 1973	Carthage, US	daily rain	48.8 mm (1.9 in)	43.5 mm (1.7 in)	23 years	41 of 100 (Notable)
31 July 1973	San Saba, US	daily rain	33.5 mm (1.3 in)	19.5 mm (0.8 in)	72 years	40 of 100 (Notable)
31 July 1973	Biskra, DZ	daily low max	33.0 C (91.4 F)	2.0 C (3.6 F)	80 years	39 of 100 (Notable)
31 July 1973	Marseilles Lock/Dam, US	daily rain	72.4 mm (2.9 in)	54.9 mm (2.2 in)	8 years	39 of 100 (Notable)
31 July 1973	Fischers Store, US	daily rain	30.5 mm (1.2 in)	12.7 mm (0.5 in)	80 years	39 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

1804 to 1973

Records set or tied on this calendar date in each year from 1804 to 1973. 1973 had 583 records.

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

Records on 07-31 in each year
Year	Records
1804	1
1815	1
1816	1
1828	1
1834	1
1839	1
1840	1
1841	2
1851	1
1858	2
1860	4
1863	1
1866	1
1873	2
1876	1
1879	1
1884	1
1885	1
1886	1
1887	5
1889	2
1890	2
1891	1
1892	1
1893	3
1894	2
1896	2
1897	2
1898	5
1900	1
1901	3
1902	4
1903	16
1904	12
1905	10
1906	14
1907	17
1908	22
1909	15
1910	21
1911	29
1912	14
1913	31
1914	28
1915	71
1916	63
1917	126
1918	39
1919	27
1920	168
1921	112
1922	24
1923	236
1924	97
1925	349
1926	226
1927	161
1928	145
1929	134
1930	143
1931	441
1932	314
1933	504
1934	449
1935	418
1936	548
1937	297
1938	417
1939	357
1940	415
1941	323
1942	342
1943	342
1944	312
1945	499
1946	426
1947	341
1948	341
1949	406
1950	511
1951	364
1952	472
1953	414
1954	459
1955	813
1956	574
1957	268
1958	374
1959	424
1960	622
1961	504
1962	348
1963	294
1964	637
1965	858
1966	606
1967	326
1968	637
1969	440
1970	576
1971	1,850
1972	667
1973	583
1974	363
1975	1,386
1976	530
1977	543
1978	754
1979	501
1980	1,047
1981	672
1982	767
1983	901
1984	777
1985	1,065
1986	1,021
1987	934
1988	940
1989	1,753
1990	911
1991	647
1992	1,169
1993	1,031
1994	1,207
1995	1,223
1996	1,084
1997	984
1998	1,195
1999	1,643
2000	1,001
2001	1,414
2002	1,080
2003	1,157
2004	779
2005	742
2006	1,405
2007	1,023
2008	911
2009	1,156
2010	1,485
2011	1,040
2012	712
2013	469
2014	1,000
2015	948
2016	501
2017	485
2018	1,135
2019	551
2020	1,034
2021	1,020
2022	861
2023	671
2024	748
2025	836
2026	754

Download the Data

Data for records on 1973-07-31: 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 10	388
10 to 20	60
20 to 30	21
30 to 40	11
40 to 50	2
50 to 60	6
60 to 70	0
70 to 80	1