Weather Records on 20 July 1983

1,117 weather records were set or tied worldwide on 20 July 1983. Highest significance: Beaver Dam Wwtp, US.

Key Facts for 20 July 1983

On 20 July 1983, 1,117 weather records were set or tied at long-record stations worldwide.
426 were record highs and 344 were record lows, counting maximum and minimum temperature.
By timescale, 7 were all-time records, 27 monthly and 1,083 daily.
Beaver Dam Wwtp set an all-time record daily precipitation of 147.3 mm (5.8 in) on 20 July 1983.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 455 records.

Record Map

1,117 stations

1,117 station records on 20 July 1983 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1983: highest significance records shown on the map
Station	Country	Type	Value	Significance
Beaver Dam Wwtp	United States	Record daily precipitation	147.3 mm (5.8 in)	70 of 100 (Major)
Keams Canyon	United States	Record high minimum temperature	28.3 C (82.9 F)	62 of 100 (Major)
Winter Park	United States	Record daily precipitation	47.0 mm (1.9 in)	60 of 100 (Major)
Saint Ignatius	United States	Record daily precipitation	27.2 mm (1.1 in)	60 of 100 (Major)
Las Cruces	Mexico	Record daily precipitation	97.8 mm (3.9 in)	54 of 100 (Notable)
Roadene	Canada	Record daily precipitation	48.8 mm (1.9 in)	53 of 100 (Notable)
Virginia City	United States	Record low minimum temperature	3.3 C (37.9 F)	53 of 100 (Notable)
Clearwater	United States	Record daily precipitation	53.8 mm (2.1 in)	52 of 100 (Notable)
Santa Rita Do Jacutinga	Brazil	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
Empress	Canada	Record daily precipitation	56.0 mm (2.2 in)	51 of 100 (Notable)
Dorena	United States	Record daily precipitation	27.2 mm (1.1 in)	50 of 100 (Notable)
Lukachukai	United States	Record daily precipitation	38.6 mm (1.5 in)	49 of 100 (Notable)
Paso de San Antonio	Mexico	Record daily precipitation	59.9 mm (2.4 in)	47 of 100 (Notable)
Villa Cuauhtemoc	Mexico	Record daily precipitation	69.9 mm (2.8 in)	47 of 100 (Notable)
Chewelah	United States	Record daily precipitation	26.7 mm (1.1 in)	45 of 100 (Notable)
Shawano 2SSW	United States	Record daily precipitation	76.2 mm (3.0 in)	45 of 100 (Notable)
La Poza Honda	Mexico	Record daily precipitation	51.8 mm (2.0 in)	44 of 100 (Notable)
Simpson 6 N - Wildhorse	United States	Record daily precipitation	34.0 mm (1.3 in)	44 of 100 (Notable)
Dundurn	Canada	Record daily precipitation	52.3 mm (2.1 in)	43 of 100 (Notable)
Mudanjiang	China	Record daily precipitation	43.3 mm (1.7 in)	43 of 100 (Notable)
Luroy	Norway	Record daily precipitation	119.1 mm (4.7 in)	43 of 100 (Notable)
Ulleungdo	Korea, South	Record daily precipitation	106.0 mm (4.2 in)	42 of 100 (Notable)
Nevada City	United States	Record low maximum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Porterville	United States	Record low maximum temperature	30.0 C (86.0 F)	41 of 100 (Notable)
Truckee Rs	United States	Record low maximum temperature	18.3 C (64.9 F)	40 of 100 (Notable)
Visalia	United States	Record low maximum temperature	28.9 C (84.0 F)	40 of 100 (Notable)
Nagpur Sonegaon	India	Record daily precipitation	84.1 mm (3.3 in)	39 of 100 (Notable)
San Felipe Usila	Mexico	Record daily precipitation	359.9 mm (14.2 in)	39 of 100 (Notable)
Hawthorne AP	United States	Record low maximum temperature	27.2 C (81.0 F)	39 of 100 (Notable)
Charlotteburg Rsvr	United States	Record daily precipitation	78.7 mm (3.1 in)	39 of 100 (Notable)
Fazenda Sao Gabriel	Brazil	Record daily precipitation	30.0 mm (1.2 in)	38 of 100 (Notable)
Keflavik	Iceland	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Hat Creek	United States	Record low maximum temperature	21.1 C (70.0 F)	38 of 100 (Notable)
De Funiak Springs 1 E	United States	Record low minimum temperature	16.7 C (62.1 F)	38 of 100 (Notable)
Yerington	United States	Record low maximum temperature	27.2 C (81.0 F)	38 of 100 (Notable)
Cliff 11 SE	United States	Record high minimum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
Aunet	Norway	Record daily precipitation	32.3 mm (1.3 in)	37 of 100 (Notable)
East Park Rsvr	United States	Record low minimum temperature	7.2 C (45.0 F)	37 of 100 (Notable)
Manistique Wwtp	United States	Record high minimum temperature	20.6 C (69.1 F)	37 of 100 (Notable)
Estevao Pinto	Brazil	Record daily precipitation	42.0 mm (1.7 in)	36 of 100 (Notable)
Dilke	Canada	Record daily precipitation	39.2 mm (1.5 in)	36 of 100 (Notable)
Cedral	Mexico	Record low maximum temperature	21.1 C (70.0 F)	36 of 100 (Notable)
Huntington Lake	United States	Record low minimum temperature	0.6 C (33.1 F)	36 of 100 (Notable)
McCloud	United States	Record low maximum temperature	20.6 C (69.1 F)	36 of 100 (Notable)
Sparta 1 W	United States	Record high minimum temperature	25.6 C (78.1 F)	36 of 100 (Notable)
San Saba	United States	Record low minimum temperature	16.1 C (61.0 F)	36 of 100 (Notable)
Wytheville	United States	Record high maximum temperature	35.0 C (95.0 F)	36 of 100 (Notable)
Conceicao Do Ibitipoca	Brazil	Record daily precipitation	29.0 mm (1.1 in)	35 of 100 (Notable)
Conservatoria	Brazil	Record daily precipitation	45.1 mm (1.8 in)	35 of 100 (Notable)
Lajas Substn	Puerto Rico [United States]	Record high minimum temperature	23.3 C (73.9 F)	35 of 100 (Notable)
Pogranichnyj	Russia	Record daily precipitation	49.0 mm (1.9 in)	35 of 100 (Notable)
Beavertown 1 NE	United States	Record daily precipitation	78.7 mm (3.1 in)	35 of 100 (Notable)
Bowman Dam	United States	Record low minimum temperature	3.3 C (37.9 F)	34 of 100 (Routine)
Henderson 8 SSW	United States	Record high maximum temperature	37.8 C (100.0 F)	34 of 100 (Routine)
Hawthorne AP	United States	Record low minimum temperature	10.6 C (51.1 F)	34 of 100 (Routine)
Bedford	United States	Record high maximum temperature	37.2 C (99.0 F)	34 of 100 (Routine)
Monte Carmelo	Brazil	Record daily precipitation	49.0 mm (1.9 in)	33 of 100 (Routine)
Indian Head Cda	Canada	Record daily precipitation	53.6 mm (2.1 in)	33 of 100 (Routine)
Samtredia	Georgia	Record daily precipitation	78.9 mm (3.1 in)	33 of 100 (Routine)
Keda	Georgia	Record daily precipitation	59.7 mm (2.4 in)	33 of 100 (Routine)

Counts by Type and Timescale

1,117 records

Records set or tied on 20 July 1983 by type: Highest daily maximum 163, Lowest daily maximum 208, Highest daily minimum 263, Lowest daily minimum 136, Heaviest daily rainfall 346, Deepest snow cover 1.

Records on 20 July 1983 by type
Record type	Records
Highest daily maximum	163
Lowest daily maximum	208
Highest daily minimum	263
Lowest daily minimum	136
Heaviest daily rainfall	346
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 20 July 1983 by timescale: all-time 7, monthly 27, daily 1,083.

How Much Records Were Beaten By

891 broken records

Margins by which the 891 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

20 July 1983

Top 20 records on 20 July 1983 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1983	Beaver Dam Wwtp, US	all-time rain	147.3 mm (5.8 in)	50.3 mm (2.0 in)	5 years	70 of 100 (Major)
20 July 1983	Keams Canyon, US	daily high min	28.3 C (82.9 F)	10.5 C (18.9 F)	61 years	62 of 100 (Major)
20 July 1983	Winter Park, US	monthly rain	47.0 mm (1.9 in)	17.3 mm (0.7 in)	34 years	60 of 100 (Major)
20 July 1983	Saint Ignatius, US	daily rain	27.2 mm (1.1 in)	22.4 mm (0.9 in)	41 years	60 of 100 (Major)
20 July 1983	Las Cruces, MX	all-time rain	97.8 mm (3.9 in)	29.0 mm (1.1 in)	8 years	54 of 100 (Notable)
20 July 1983	Roadene, CA	daily rain	48.8 mm (1.9 in)	25.7 mm (1.0 in)	44 years	53 of 100 (Notable)
20 July 1983	Virginia City, US	daily low min	3.3 C (37.9 F)	6.7 C (12.1 F)	88 years	53 of 100 (Notable)
20 July 1983	Clearwater, US	daily rain	53.8 mm (2.1 in)	40.3 mm (1.6 in)	53 years	52 of 100 (Notable)
20 July 1983	Santa Rita Do Jacutinga, BR	daily rain	30.0 mm (1.2 in)	20.2 mm (0.8 in)	24 years	51 of 100 (Notable)
20 July 1983	Empress, CA	daily rain	56.0 mm (2.2 in)	38.7 mm (1.5 in)	13 years	51 of 100 (Notable)
20 July 1983	Dorena, US	monthly rain	27.2 mm (1.1 in)	10.7 mm (0.4 in)	0 years	50 of 100 (Notable)
20 July 1983	Lukachukai, US	daily rain	38.6 mm (1.5 in)	32.8 mm (1.3 in)	6 years	49 of 100 (Notable)
20 July 1983	Paso de San Antonio, MX	daily rain	59.9 mm (2.4 in)	44.2 mm (1.7 in)	30 years	47 of 100 (Notable)
20 July 1983	Villa Cuauhtemoc, MX	daily rain	69.9 mm (2.8 in)	55.4 mm (2.2 in)	28 years	47 of 100 (Notable)
20 July 1983	Chewelah, US	daily rain	26.7 mm (1.1 in)	15.5 mm (0.6 in)	32 years	45 of 100 (Notable)
20 July 1983	Shawano 2SSW, US	daily rain	76.2 mm (3.0 in)	38.9 mm (1.5 in)	6 years	45 of 100 (Notable)
20 July 1983	La Poza Honda, MX	monthly rain	51.8 mm (2.0 in)	19.5 mm (0.8 in)	26 years	44 of 100 (Notable)
20 July 1983	Simpson 6 N - Wildhorse, US	daily rain	34.0 mm (1.3 in)	16.7 mm (0.7 in)	48 years	44 of 100 (Notable)
20 July 1983	Dundurn, CA	daily rain	52.3 mm (2.1 in)	30.2 mm (1.2 in)	14 years	43 of 100 (Notable)
20 July 1983	Mudanjiang, CN	daily rain	43.3 mm (1.7 in)	27.7 mm (1.1 in)	32 years	43 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 1983

Records set or tied on this calendar date in each year from 1809 to 1983. 1983 had 1,117 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 1983-07-20: 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	855
20 to 40	27
40 to 60	6
60 to 80	2
80 to 100	0
100 to 120	0
120 to 140	0
140 to 160	1