Weather Records on 20 July 1973

804 weather records were set or tied worldwide on 20 July 1973. Highest significance: Hayes Center 1NW, US.

Key Facts for 20 July 1973

On 20 July 1973, 804 weather records were set or tied at long-record stations worldwide.
125 were record highs and 324 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 22 monthly and 779 daily.
Hayes Center 1NW set an all-time record daily precipitation of 134.1 mm (5.3 in) on 20 July 1973.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 457 records.

Record Map

804 stations

804 station records on 20 July 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hayes Center 1NW	United States	Record daily precipitation	134.1 mm (5.3 in)	77 of 100 (Major)
Gothenburg	United States	Record daily precipitation	61.0 mm (2.4 in)	66 of 100 (Major)
Fairbury 7S	United States	Record daily precipitation	76.2 mm (3.0 in)	63 of 100 (Major)
Decatur Wtp	United States	Record daily precipitation	91.7 mm (3.6 in)	62 of 100 (Major)
Ashland	United States	Record daily precipitation	142.5 mm (5.6 in)	62 of 100 (Major)
Harrisburg 12WNW	United States	Record daily precipitation	47.8 mm (1.9 in)	62 of 100 (Major)
Blackfoot Fire Dept	United States	Record daily precipitation	39.4 mm (1.6 in)	59 of 100 (Notable)
Loup City	United States	Record daily precipitation	70.6 mm (2.8 in)	58 of 100 (Notable)
N Loup	United States	Record daily precipitation	69.9 mm (2.8 in)	58 of 100 (Notable)
Taylor	United States	Record daily precipitation	63.8 mm (2.5 in)	58 of 100 (Notable)
Graca	Brazil	Record daily precipitation	61.2 mm (2.4 in)	56 of 100 (Notable)
Frankfort	United States	Record daily precipitation	59.4 mm (2.3 in)	56 of 100 (Notable)
Mason City	United States	Record daily precipitation	94.5 mm (3.7 in)	56 of 100 (Notable)
Wamego 4 W	United States	Record daily precipitation	93.2 mm (3.7 in)	55 of 100 (Notable)
Snowville	United States	Record low maximum temperature	18.3 C (64.9 F)	55 of 100 (Notable)
Caete	Brazil	Record daily precipitation	153.5 mm (6.0 in)	53 of 100 (Notable)
Greeley	United States	Record daily precipitation	62.0 mm (2.4 in)	53 of 100 (Notable)
Mattoon	United States	Record daily precipitation	97.8 mm (3.9 in)	52 of 100 (Notable)
Broken Bow 2 W	United States	Record daily precipitation	71.4 mm (2.8 in)	52 of 100 (Notable)
Pouso Alegre	Brazil	Record daily precipitation	48.5 mm (1.9 in)	51 of 100 (Notable)
Malung	Sweden	Record daily precipitation	41.6 mm (1.6 in)	51 of 100 (Notable)
Vasteras-Hasslo	Sweden	Record daily precipitation	49.4 mm (1.9 in)	51 of 100 (Notable)
Ardmore 1 NW	United States	Record daily precipitation	60.5 mm (2.4 in)	51 of 100 (Notable)
Hermosa 3 SSW	United States	Record daily precipitation	39.9 mm (1.6 in)	51 of 100 (Notable)
Usina Itatinga	Brazil	Record daily precipitation	149.7 mm (5.9 in)	50 of 100 (Notable)
Represa Itatinga	Brazil	Record daily precipitation	143.8 mm (5.7 in)	50 of 100 (Notable)
Curtis	United States	Record daily precipitation	84.3 mm (3.3 in)	49 of 100 (Notable)
Palisade	United States	Record daily precipitation	94.0 mm (3.7 in)	48 of 100 (Notable)
Diversion Dam	United States	Record daily precipitation	38.9 mm (1.5 in)	48 of 100 (Notable)
Lusk 2 SW	United States	Record daily precipitation	55.9 mm (2.2 in)	48 of 100 (Notable)
Yoder 5 W	United States	Record daily precipitation	32.5 mm (1.3 in)	48 of 100 (Notable)
Cruzeiro	Brazil	Record daily precipitation	32.8 mm (1.3 in)	47 of 100 (Notable)
Pereque	Brazil	Record daily precipitation	99.8 mm (3.9 in)	47 of 100 (Notable)
Newport	United States	Record high minimum temperature	20.0 C (68.0 F)	46 of 100 (Notable)
Kur	Russia	Record daily precipitation	55.2 mm (2.2 in)	45 of 100 (Notable)
Champaign 3S	United States	Record daily precipitation	75.7 mm (3.0 in)	45 of 100 (Notable)
Stratton	United States	Record daily precipitation	64.3 mm (2.5 in)	45 of 100 (Notable)
Blue Rapids	United States	Record daily precipitation	56.9 mm (2.2 in)	44 of 100 (Notable)
Albion	United States	Record daily precipitation	48.5 mm (1.9 in)	44 of 100 (Notable)
Box Butte Exp STN	United States	Record daily precipitation	50.8 mm (2.0 in)	44 of 100 (Notable)
Chugwater	United States	Record low maximum temperature	14.4 C (57.9 F)	44 of 100 (Notable)
Zjulzja	Russia	Record daily precipitation	48.9 mm (1.9 in)	43 of 100 (Notable)
Dono	Russia	Record daily precipitation	62.7 mm (2.5 in)	43 of 100 (Notable)
Hebron	United States	Record daily precipitation	79.5 mm (3.1 in)	43 of 100 (Notable)
Miller	United States	Record daily precipitation	52.6 mm (2.1 in)	43 of 100 (Notable)
Logan Utah St UNIV	United States	Record low maximum temperature	17.8 C (64.0 F)	43 of 100 (Notable)
Glenrock 5 ESE	United States	Record daily precipitation	27.9 mm (1.1 in)	43 of 100 (Notable)
Kearney 4 NE	United States	Record daily precipitation	56.9 mm (2.2 in)	42 of 100 (Notable)
Kemmerer 2N	United States	Record low maximum temperature	14.4 C (57.9 F)	42 of 100 (Notable)
King City	United States	Record daily precipitation	91.9 mm (3.6 in)	41 of 100 (Notable)
Gillette 3SE	United States	Record low maximum temperature	14.4 C (57.9 F)	41 of 100 (Notable)
Lusk 2 SW	United States	Record low maximum temperature	12.8 C (55.0 F)	41 of 100 (Notable)
Pathfinder Dam	United States	Record low maximum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Centralia	United States	Record daily precipitation	54.6 mm (2.1 in)	39 of 100 (Notable)
Dull Ctr 1SE	United States	Record daily precipitation	27.7 mm (1.1 in)	39 of 100 (Notable)
Danville	United States	Record daily precipitation	69.6 mm (2.7 in)	38 of 100 (Notable)
Arnold	United States	Record daily precipitation	48.0 mm (1.9 in)	38 of 100 (Notable)
Lead	United States	Record low maximum temperature	11.7 C (53.1 F)	38 of 100 (Notable)
Nicosia	Cyprus	Record high maximum temperature	44.2 C (111.6 F)	37 of 100 (Notable)
Rzev	Russia	Record daily precipitation	67.6 mm (2.7 in)	37 of 100 (Notable)

Counts by Type and Timescale

804 records

Records set or tied on 20 July 1973 by type: Highest daily maximum 36, Lowest daily maximum 242, Highest daily minimum 89, Lowest daily minimum 82, Heaviest daily rainfall 354, Heaviest daily snowfall 1.

Records on 20 July 1973 by type
Record type	Records
Highest daily maximum	36
Lowest daily maximum	242
Highest daily minimum	89
Lowest daily minimum	82
Heaviest daily rainfall	354
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 20 July 1973 by timescale: all-time 3, monthly 22, daily 779.

How Much Records Were Beaten By

649 broken records

Margins by which the 649 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 120.4. Ties are not counted.

Top 20 by Significance

20 July 1973

Top 20 records on 20 July 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1973	Hayes Center 1NW, US	all-time rain	134.1 mm (5.3 in)	35.0 mm (1.4 in)	64 years	77 of 100 (Major)
20 July 1973	Gothenburg, US	daily rain	61.0 mm (2.4 in)	33.1 mm (1.3 in)	76 years	66 of 100 (Major)
20 July 1973	Fairbury 7S, US	daily rain	76.2 mm (3.0 in)	53.1 mm (2.1 in)	77 years	63 of 100 (Major)
20 July 1973	Decatur Wtp, US	daily rain	91.7 mm (3.6 in)	41.4 mm (1.6 in)	78 years	62 of 100 (Major)
20 July 1973	Ashland, US	all-time rain	142.5 mm (5.6 in)	38.6 mm (1.5 in)	11 years	62 of 100 (Major)
20 July 1973	Harrisburg 12WNW, US	daily rain	47.8 mm (1.9 in)	35.6 mm (1.4 in)	60 years	62 of 100 (Major)
20 July 1973	Blackfoot Fire Dept, US	daily rain	39.4 mm (1.6 in)	24.4 mm (1.0 in)	48 years	59 of 100 (Notable)
20 July 1973	Loup City, US	daily rain	70.6 mm (2.8 in)	52.3 mm (2.1 in)	44 years	58 of 100 (Notable)
20 July 1973	N Loup, US	daily rain	69.9 mm (2.8 in)	39.4 mm (1.6 in)	70 years	58 of 100 (Notable)
20 July 1973	Taylor, US	daily rain	63.8 mm (2.5 in)	58.7 mm (2.3 in)	46 years	58 of 100 (Notable)
20 July 1973	Graca, BR	daily rain	61.2 mm (2.4 in)	61.2 mm (2.4 in)	40 years	56 of 100 (Notable)
20 July 1973	Frankfort, US	daily rain	59.4 mm (2.3 in)	44.2 mm (1.7 in)	75 years	56 of 100 (Notable)
20 July 1973	Mason City, US	monthly rain	94.5 mm (3.7 in)	25.4 mm (1.0 in)	61 years	56 of 100 (Notable)
20 July 1973	Wamego 4 W, US	daily rain	93.2 mm (3.7 in)	76.4 mm (3.0 in)	24 years	55 of 100 (Notable)
20 July 1973	Snowville, US	daily low max	18.3 C (64.9 F)	8.4 C (15.1 F)	77 years	55 of 100 (Notable)
20 July 1973	Caete, BR	daily rain	153.5 mm (6.0 in)	114.9 mm (4.5 in)	35 years	53 of 100 (Notable)
20 July 1973	Greeley, US	daily rain	62.0 mm (2.4 in)	34.1 mm (1.3 in)	68 years	53 of 100 (Notable)
20 July 1973	Mattoon, US	daily rain	97.8 mm (3.9 in)	75.4 mm (3.0 in)	15 years	52 of 100 (Notable)
20 July 1973	Broken Bow 2 W, US	daily rain	71.4 mm (2.8 in)	32.3 mm (1.3 in)	68 years	52 of 100 (Notable)
20 July 1973	Pouso Alegre, BR	daily rain	48.5 mm (1.9 in)	46.7 mm (1.8 in)	27 years	51 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

1809 to 1973

Records set or tied on this calendar date in each year from 1809 to 1973. 1973 had 804 records.

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

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 1973-07-20: 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	575
20 to 40	51
40 to 60	14
60 to 80	6
80 to 100	0
100 to 120	2
120 to 140	1