Weather Records on 20 July 1990

724 weather records were set or tied worldwide on 20 July 1990. Highest significance: Estes Park, US.

Key Facts for 20 July 1990

On 20 July 1990, 724 weather records were set or tied at long-record stations worldwide.
242 were record highs and 174 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 8 monthly and 711 daily.
Estes Park set a daily record precipitation of 28.4 mm (1.1 in) on 20 July 1990.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 457 records.

Record Map

724 stations

724 station records on 20 July 1990 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1990: highest significance records shown on the map
Station	Country	Type	Value	Significance
Estes Park	United States	Record daily precipitation	28.4 mm (1.1 in)	60 of 100 (Major)
Belle Fourche	United States	Record daily precipitation	35.8 mm (1.4 in)	58 of 100 (Notable)
Witwater (Bos)	South Africa	Record daily precipitation	49.0 mm (1.9 in)	57 of 100 (Notable)
Chicago UNIV	United States	Record daily precipitation	100.3 mm (3.9 in)	56 of 100 (Notable)
Praia Grande (Parana)	Brazil	Record daily precipitation	84.0 mm (3.3 in)	54 of 100 (Notable)
Mt Ayr	United States	Record daily precipitation	139.7 mm (5.5 in)	54 of 100 (Notable)
Findlay AP	United States	Record daily precipitation	79.2 mm (3.1 in)	54 of 100 (Notable)
Newbicup	Australia	Record daily precipitation	58.0 mm (2.3 in)	53 of 100 (Notable)
Morretes	Brazil	Record daily precipitation	89.0 mm (3.5 in)	53 of 100 (Notable)
Dumont	United States	Record daily precipitation	113.5 mm (4.5 in)	53 of 100 (Notable)
Sioux City Perry Creek	United States	Record daily precipitation	113.8 mm (4.5 in)	52 of 100 (Notable)
Emerson	United States	Record daily precipitation	96.8 mm (3.8 in)	52 of 100 (Notable)
Astana	Kazakhstan	Record daily precipitation	40.8 mm (1.6 in)	50 of 100 (Notable)
Staraja_Russa	Russia	Record daily precipitation	72.0 mm (2.8 in)	50 of 100 (Notable)
Blockton 1W	United States	Record daily precipitation	95.3 mm (3.8 in)	50 of 100 (Notable)
Boulder	United States	Record daily precipitation	53.8 mm (2.1 in)	49 of 100 (Notable)
Big Wells 2W	United States	Record daily precipitation	38.1 mm (1.5 in)	47 of 100 (Notable)
Mersa Matruh	Egypt	Record low minimum temperature	12.9 C (55.2 F)	45 of 100 (Notable)
Bloomfield	United States	Record daily precipitation	78.7 mm (3.1 in)	45 of 100 (Notable)
Colonia Do Cachoeira	Brazil	Record daily precipitation	84.5 mm (3.3 in)	44 of 100 (Notable)
San Pedro Chenalho (Smn)	Mexico	Record daily precipitation	95.3 mm (3.8 in)	44 of 100 (Notable)
Vanzil-Kynak	Russia	Record daily precipitation	38.0 mm (1.5 in)	44 of 100 (Notable)
Carroll	United States	Record daily precipitation	85.1 mm (3.4 in)	44 of 100 (Notable)
Beaconsfield 3N	United States	Record daily precipitation	87.6 mm (3.4 in)	43 of 100 (Notable)
Winamac 2SSE	United States	Record daily precipitation	59.4 mm (2.3 in)	42 of 100 (Notable)
Boise City 2 E	United States	Record daily precipitation	35.6 mm (1.4 in)	40 of 100 (Notable)
Posevnaja	Russia	Record daily precipitation	28.1 mm (1.1 in)	39 of 100 (Notable)
Monmouth	United States	Record daily precipitation	31.5 mm (1.2 in)	39 of 100 (Notable)
Mt Pleasant 1 SW	United States	Record daily precipitation	48.3 mm (1.9 in)	39 of 100 (Notable)
Wheatland 4N	United States	Record daily precipitation	41.9 mm (1.6 in)	39 of 100 (Notable)
Canton	United States	Record daily precipitation	59.4 mm (2.3 in)	38 of 100 (Notable)
Allison	United States	Record daily precipitation	49.5 mm (1.9 in)	38 of 100 (Notable)
Darrouzett	United States	Record daily precipitation	43.2 mm (1.7 in)	38 of 100 (Notable)
Bedford	United States	Record high minimum temperature	26.1 C (79.0 F)	38 of 100 (Notable)
Santiago de Compostela/Labacol	Spain	Record high maximum temperature	39.4 C (102.9 F)	37 of 100 (Notable)
Hugoton	United States	Record daily precipitation	47.0 mm (1.9 in)	36 of 100 (Notable)
Kalamazoo State Hospital	United States	Record daily precipitation	45.2 mm (1.8 in)	36 of 100 (Notable)
Santander Centro	Spain	Record high maximum temperature	29.8 C (85.6 F)	35 of 100 (Notable)
Camp Hill 2NW	United States	Record low maximum temperature	25.6 C (78.1 F)	35 of 100 (Notable)
New Hampton	United States	Record daily precipitation	67.6 mm (2.7 in)	35 of 100 (Notable)
Perry	United States	Record daily precipitation	43.7 mm (1.7 in)	35 of 100 (Notable)
Dresden	United States	Record daily precipitation	32.5 mm (1.3 in)	35 of 100 (Notable)
Sonora	United States	Record low minimum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Pathfinder Dam	United States	Record low minimum temperature	5.0 C (41.0 F)	35 of 100 (Notable)
Calcutta/Dum Dum	India	Record daily precipitation	87.9 mm (3.5 in)	34 of 100 (Routine)
Huamuxtitlan (Dge)	Mexico	Record low minimum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Crescent City	United States	Record high minimum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Blackfoot Fire Dept	United States	Record low maximum temperature	22.8 C (73.0 F)	34 of 100 (Routine)
Riverside 7 SSW	United States	Record high minimum temperature	20.0 C (68.0 F)	34 of 100 (Routine)
Placerville	United States	Record high minimum temperature	22.2 C (72.0 F)	33 of 100 (Routine)
Keosauqua	United States	Record daily precipitation	55.9 mm (2.2 in)	33 of 100 (Routine)
Puente San Isidro	Mexico	Record daily precipitation	39.6 mm (1.6 in)	32 of 100 (Routine)
Jolalpan	Mexico	Record daily precipitation	63.8 mm (2.5 in)	32 of 100 (Routine)
Billingsley	United States	Record daily precipitation	40.6 mm (1.6 in)	32 of 100 (Routine)
La Harpe	United States	Record daily precipitation	41.9 mm (1.6 in)	32 of 100 (Routine)
Princeville	United States	Record daily precipitation	30.0 mm (1.2 in)	32 of 100 (Routine)
Umbarger	United States	Record daily precipitation	36.3 mm (1.4 in)	32 of 100 (Routine)
Whiteriver 1 SW	United States	Record high minimum temperature	21.7 C (71.1 F)	31 of 100 (Routine)
Oceanside Marina	United States	Record high minimum temperature	20.6 C (69.1 F)	31 of 100 (Routine)
Marshalltown	United States	Record daily precipitation	68.1 mm (2.7 in)	31 of 100 (Routine)

Counts by Type and Timescale

724 records

Records set or tied on 20 July 1990 by type: Highest daily maximum 101, Lowest daily maximum 107, Highest daily minimum 141, Lowest daily minimum 67, Heaviest daily rainfall 308.

Records on 20 July 1990 by type
Record type	Records
Highest daily maximum	101
Lowest daily maximum	107
Highest daily minimum	141
Lowest daily minimum	67
Heaviest daily rainfall	308
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1990 by timescale: all-time 5, monthly 8, daily 711.

How Much Records Were Beaten By

598 broken records

Margins by which the 598 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 94.5. Ties are not counted.

Top 20 by Significance

20 July 1990

Top 20 records on 20 July 1990 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1990	Estes Park, US	daily rain	28.4 mm (1.1 in)	15.7 mm (0.6 in)	80 years	60 of 100 (Major)
20 July 1990	Belle Fourche, US	daily rain	35.8 mm (1.4 in)	24.9 mm (1.0 in)	60 years	58 of 100 (Notable)
20 July 1990	Witwater (Bos), ZA	daily rain	49.0 mm (1.9 in)	39.3 mm (1.5 in)	56 years	57 of 100 (Notable)
20 July 1990	Chicago UNIV, US	daily rain	100.3 mm (3.9 in)	72.4 mm (2.9 in)	36 years	56 of 100 (Notable)
20 July 1990	Praia Grande (Parana), BR	daily rain	84.0 mm (3.3 in)	56.5 mm (2.2 in)	32 years	54 of 100 (Notable)
20 July 1990	Mt Ayr, US	monthly rain	139.7 mm (5.5 in)	12.7 mm (0.5 in)	95 years	54 of 100 (Notable)
20 July 1990	Findlay AP, US	daily rain	79.2 mm (3.1 in)	50.8 mm (2.0 in)	36 years	54 of 100 (Notable)
20 July 1990	Newbicup, AU	daily rain	58.0 mm (2.3 in)	28.0 mm (1.1 in)	29 years	53 of 100 (Notable)
20 July 1990	Morretes, BR	daily rain	89.0 mm (3.5 in)	46.7 mm (1.8 in)	41 years	53 of 100 (Notable)
20 July 1990	Dumont, US	daily rain	113.5 mm (4.5 in)	87.1 mm (3.4 in)	28 years	53 of 100 (Notable)
20 July 1990	Sioux City Perry Creek, US	daily rain	113.8 mm (4.5 in)	94.5 mm (3.7 in)	28 years	52 of 100 (Notable)
20 July 1990	Emerson, US	daily rain	96.8 mm (3.8 in)	71.9 mm (2.8 in)	28 years	52 of 100 (Notable)
20 July 1990	Astana, KZ	daily rain	40.8 mm (1.6 in)	24.4 mm (1.0 in)	29 years	50 of 100 (Notable)
20 July 1990	Staraja_Russa, RU	daily rain	72.0 mm (2.8 in)	44.6 mm (1.8 in)	16 years	50 of 100 (Notable)
20 July 1990	Blockton 1W, US	daily rain	95.3 mm (3.8 in)	61.3 mm (2.4 in)	16 years	50 of 100 (Notable)
20 July 1990	Boulder, US	daily rain	53.8 mm (2.1 in)	33.7 mm (1.3 in)	4 years	49 of 100 (Notable)
20 July 1990	Big Wells 2W, US	daily rain	38.1 mm (1.5 in)	28.2 mm (1.1 in)	64 years	47 of 100 (Notable)
20 July 1990	Mersa Matruh, EG	daily low min	12.9 C (55.2 F)	5.1 C (9.2 F)	36 years	45 of 100 (Notable)
20 July 1990	Bloomfield, US	daily rain	78.7 mm (3.1 in)	22.1 mm (0.9 in)	83 years	45 of 100 (Notable)
20 July 1990	Colonia Do Cachoeira, BR	daily rain	84.5 mm (3.3 in)	40.3 mm (1.6 in)	32 years	44 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 1990

Records set or tied on this calendar date in each year from 1809 to 1990. 1990 had 724 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 1990-07-20: 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	557
20 to 40	27
40 to 60	9
60 to 80	3
80 to 100	2