Weather Records on 20 August 1989

603 weather records were set or tied worldwide on 20 August 1989. Highest significance: Vik I Sogn III, NO.

Key Facts for 20 August 1989

On 20 August 1989, 603 weather records were set or tied at long-record stations worldwide.
227 were record highs and 136 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 23 monthly and 577 daily.
Vik I Sogn III set a daily record precipitation of 43.2 mm (1.7 in) on 20 August 1989.
Across 163 earlier years (1797 to 2026) the same calendar date averaged 454 records.

Record Map

603 stations

603 station records on 20 August 1989 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 August 1989: highest significance records shown on the map
Station	Country	Type	Value	Significance
Vik I Sogn III	Norway	Record daily precipitation	43.2 mm (1.7 in)	73 of 100 (Major)
Sogndal - Selseng	Norway	Record daily precipitation	60.2 mm (2.4 in)	65 of 100 (Major)
Tulsa Intl AP	United States	Record daily precipitation	136.4 mm (5.4 in)	64 of 100 (Major)
Hafslo	Norway	Record daily precipitation	36.9 mm (1.5 in)	58 of 100 (Notable)
Santiago Papasquiaro (Smn)	Mexico	Record daily precipitation	62.2 mm (2.4 in)	55 of 100 (Notable)
Petropavlovskij Majak	Russia	Record daily precipitation	40.5 mm (1.6 in)	54 of 100 (Notable)
Barnsdall	United States	Record daily precipitation	96.5 mm (3.8 in)	54 of 100 (Notable)
Ipiau	Brazil	Record daily precipitation	38.4 mm (1.5 in)	53 of 100 (Notable)
La Huerta	Mexico	Record daily precipitation	141.0 mm (5.6 in)	53 of 100 (Notable)
Roldal	Norway	Record daily precipitation	61.7 mm (2.4 in)	53 of 100 (Notable)
Anderson	United States	Record daily precipitation	87.9 mm (3.5 in)	53 of 100 (Notable)
Selinsgrove 2 S	United States	Record daily precipitation	43.9 mm (1.7 in)	53 of 100 (Notable)
Elgin	United States	Record daily precipitation	118.4 mm (4.7 in)	52 of 100 (Notable)
Flaming Gorge	United States	Record daily precipitation	37.3 mm (1.5 in)	51 of 100 (Notable)
Kaneohe Bay MCAS	United States	Record daily precipitation	29.0 mm (1.1 in)	51 of 100 (Notable)
Sauda	Norway	Record daily precipitation	66.8 mm (2.6 in)	50 of 100 (Notable)
Haskell	United States	Record daily precipitation	88.9 mm (3.5 in)	50 of 100 (Notable)
Hollow	United States	Record daily precipitation	81.5 mm (3.2 in)	49 of 100 (Notable)
Columbus	United States	Record daily precipitation	63.0 mm (2.5 in)	48 of 100 (Notable)
Petropavlovsk-Kamchatskij	Russia	Record daily precipitation	32.8 mm (1.3 in)	47 of 100 (Notable)
San Juan L M Marin Intl AP	Puerto Rico [United States]	Record daily precipitation	60.5 mm (2.4 in)	46 of 100 (Notable)
Amderma	Russia	Record daily precipitation	25.6 mm (1.0 in)	46 of 100 (Notable)
Winfield 3NE	United States	Record daily precipitation	78.7 mm (3.1 in)	46 of 100 (Notable)
Pedrinhas	Brazil	Record daily precipitation	44.4 mm (1.7 in)	45 of 100 (Notable)
Aurland	Norway	Record daily precipitation	32.2 mm (1.3 in)	45 of 100 (Notable)
Sand I Ryfylke II	Norway	Record daily precipitation	89.0 mm (3.5 in)	45 of 100 (Notable)
Kansas 2 NE	United States	Record daily precipitation	72.4 mm (2.9 in)	45 of 100 (Notable)
Slatteroy Fyr	Norway	Record daily precipitation	55.4 mm (2.2 in)	43 of 100 (Notable)
Tucson Camp Ave Exp	United States	Record high minimum temperature	26.7 C (80.1 F)	43 of 100 (Notable)
Lame Deer	United States	Record daily precipitation	29.2 mm (1.1 in)	43 of 100 (Notable)
L F Wade Intl AP Kindley Fld	Bermuda [United Kingdom]	Record high maximum temperature	33.9 C (93.0 F)	42 of 100 (Notable)
McKinney Muni AP	United States	Record low minimum temperature	12.8 C (55.0 F)	42 of 100 (Notable)
Semjachik	Russia	Record daily precipitation	57.1 mm (2.2 in)	41 of 100 (Notable)
Hominy	United States	Record daily precipitation	87.9 mm (3.5 in)	41 of 100 (Notable)
Fergana	Uzbekistan	Record high minimum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Hatlestrand	Norway	Record daily precipitation	85.3 mm (3.4 in)	40 of 100 (Notable)
Kljuchi	Russia	Record daily precipitation	40.7 mm (1.6 in)	39 of 100 (Notable)
Santa Cruz	United States	Record low maximum temperature	16.1 C (61.0 F)	38 of 100 (Notable)
Oswego 1 N	United States	Record daily precipitation	63.5 mm (2.5 in)	38 of 100 (Notable)
Crookston NW Exp STN	United States	Record low maximum temperature	17.8 C (64.0 F)	37 of 100 (Notable)
Somerville 4 NW	United States	Record low maximum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Bartlesville Muni AP	United States	Record daily precipitation	53.3 mm (2.1 in)	37 of 100 (Notable)
The Cedars	Australia	Record daily precipitation	46.0 mm (1.8 in)	36 of 100 (Notable)
Piaxtla	Mexico	Record low minimum temperature	12.8 C (55.0 F)	36 of 100 (Notable)
Keystone Dam	United States	Record daily precipitation	58.2 mm (2.3 in)	36 of 100 (Notable)
Walnut 4S	United States	Record daily precipitation	40.9 mm (1.6 in)	35 of 100 (Notable)
Miami	United States	Record daily precipitation	103.6 mm (4.1 in)	35 of 100 (Notable)
Wellsburg Wtr Trmt Pl	United States	Record high minimum temperature	22.2 C (72.0 F)	35 of 100 (Notable)
Cherdyn'	Russia	Record daily precipitation	28.0 mm (1.1 in)	34 of 100 (Routine)
Kenton	United States	Record daily precipitation	32.3 mm (1.3 in)	34 of 100 (Routine)
Greensboro Lock 7	United States	Record daily precipitation	30.5 mm (1.2 in)	34 of 100 (Routine)
Presidente Prudente	Brazil	Record daily precipitation	55.9 mm (2.2 in)	33 of 100 (Routine)
Mtn Lake	United States	Record low minimum temperature	17.8 C (64.0 F)	33 of 100 (Routine)
Ft Scott	United States	Record daily precipitation	57.7 mm (2.3 in)	33 of 100 (Routine)
Hinckley	United States	Record daily precipitation	26.2 mm (1.0 in)	33 of 100 (Routine)
Bixby	United States	Record daily precipitation	106.7 mm (4.2 in)	33 of 100 (Routine)
Suldalsvatn	Norway	Record daily precipitation	51.4 mm (2.0 in)	32 of 100 (Routine)
Fana - Stend	Norway	Record daily precipitation	70.0 mm (2.8 in)	32 of 100 (Routine)
Mound Valley 3 WSW	United States	Record daily precipitation	56.4 mm (2.2 in)	32 of 100 (Routine)
Grafton	United States	Record low maximum temperature	18.3 C (64.9 F)	32 of 100 (Routine)

Counts by Type and Timescale

603 records

Records set or tied on 20 August 1989 by type: Highest daily maximum 127, Lowest daily maximum 80, Highest daily minimum 100, Lowest daily minimum 56, Heaviest daily rainfall 240.

Records on 20 August 1989 by type
Record type	Records
Highest daily maximum	127
Lowest daily maximum	80
Highest daily minimum	100
Lowest daily minimum	56
Heaviest daily rainfall	240
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 August 1989 by timescale: all-time 3, monthly 23, daily 577.

How Much Records Were Beaten By

478 broken records

Margins by which the 478 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 87.7. Ties are not counted.

Top 20 by Significance

20 August 1989

Top 20 records on 20 August 1989 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 August 1989	Vik I Sogn III, NO	daily rain	43.2 mm (1.7 in)	24.7 mm (1.0 in)	83 years	73 of 100 (Major)
20 August 1989	Sogndal - Selseng, NO	daily rain	60.2 mm (2.4 in)	25.4 mm (1.0 in)	80 years	65 of 100 (Major)
20 August 1989	Tulsa Intl AP, US	monthly rain	136.4 mm (5.4 in)	50.3 mm (2.0 in)	47 years	64 of 100 (Major)
20 August 1989	Hafslo, NO	daily rain	36.9 mm (1.5 in)	21.2 mm (0.8 in)	44 years	58 of 100 (Notable)
20 August 1989	Santiago Papasquiaro (Smn), MX	daily rain	62.2 mm (2.4 in)	39.3 mm (1.5 in)	35 years	55 of 100 (Notable)
20 August 1989	Petropavlovskij Majak, RU	daily rain	40.5 mm (1.6 in)	19.4 mm (0.8 in)	88 years	54 of 100 (Notable)
20 August 1989	Barnsdall, US	daily rain	96.5 mm (3.8 in)	69.1 mm (2.7 in)	35 years	54 of 100 (Notable)
20 August 1989	Ipiau, BR	daily rain	38.4 mm (1.5 in)	28.6 mm (1.1 in)	30 years	53 of 100 (Notable)
20 August 1989	La Huerta, MX	daily rain	141.0 mm (5.6 in)	81.6 mm (3.2 in)	31 years	53 of 100 (Notable)
20 August 1989	Roldal, NO	monthly rain	61.7 mm (2.4 in)	9.9 mm (0.39 in)	77 years	53 of 100 (Notable)
20 August 1989	Anderson, US	daily rain	87.9 mm (3.5 in)	66.1 mm (2.6 in)	32 years	53 of 100 (Notable)
20 August 1989	Selinsgrove 2 S, US	daily rain	43.9 mm (1.7 in)	22.6 mm (0.9 in)	84 years	53 of 100 (Notable)
20 August 1989	Elgin, US	daily rain	118.4 mm (4.7 in)	87.7 mm (3.5 in)	12 years	52 of 100 (Notable)
20 August 1989	Flaming Gorge, US	daily rain	37.3 mm (1.5 in)	28.2 mm (1.1 in)	28 years	51 of 100 (Notable)
20 August 1989	Kaneohe Bay MCAS, US	daily rain	29.0 mm (1.1 in)	22.1 mm (0.9 in)	24 years	51 of 100 (Notable)
20 August 1989	Sauda, NO	daily rain	66.8 mm (2.6 in)	31.3 mm (1.2 in)	51 years	50 of 100 (Notable)
20 August 1989	Haskell, US	daily rain	88.9 mm (3.5 in)	67.6 mm (2.7 in)	23 years	50 of 100 (Notable)
20 August 1989	Hollow, US	daily rain	81.5 mm (3.2 in)	62.4 mm (2.5 in)	24 years	49 of 100 (Notable)
20 August 1989	Columbus, US	daily rain	63.0 mm (2.5 in)	29.7 mm (1.2 in)	70 years	48 of 100 (Notable)
20 August 1989	Petropavlovsk-Kamchatskij, RU	daily rain	32.8 mm (1.3 in)	11.7 mm (0.5 in)	88 years	47 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

1797 to 1989

Records set or tied on this calendar date in each year from 1797 to 1989. 1989 had 603 records.

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

Records on 08-20 in each year
Year	Records
1797	1
1807	1
1809	2
1816	1
1830	1
1832	1
1838	1
1840	1
1842	1
1846	1
1849	1
1850	1
1852	1
1858	3
1863	5
1867	4
1870	3
1871	1
1873	1
1875	2
1877	1
1883	2
1884	2
1885	6
1886	1
1888	1
1889	2
1890	2
1891	2
1892	6
1893	1
1894	1
1895	1
1896	5
1897	6
1898	1
1899	5
1900	7
1901	12
1902	3
1903	7
1904	30
1905	7
1906	26
1907	15
1908	21
1909	69
1910	7
1911	18
1912	25
1913	23
1914	15
1915	14
1916	74
1917	51
1918	69
1919	25
1920	47
1921	23
1922	52
1923	83
1924	132
1925	193
1926	187
1927	338
1928	101
1929	213
1930	318
1931	214
1932	299
1933	324
1934	376
1935	339
1936	543
1937	537
1938	250
1939	448
1940	695
1941	230
1942	429
1943	436
1944	355
1945	398
1946	349
1947	988
1948	403
1949	431
1950	1,341
1951	824
1952	425
1953	441
1954	476
1955	848
1956	678
1957	342
1958	281
1959	764
1960	465
1961	520
1962	684
1963	577
1964	629
1965	470
1966	1,094
1967	657
1968	862
1969	608
1970	414
1971	585
1972	522
1973	490
1974	565
1975	411
1976	894
1977	860
1978	563
1979	1,009
1980	991
1981	856
1982	620
1983	1,465
1984	696
1985	666
1986	819
1987	564
1988	991
1989	603
1990	1,262
1991	804
1992	1,168
1993	759
1994	719
1995	1,113
1996	900
1997	1,214
1998	802
1999	810
2000	989
2001	909
2002	1,208
2003	1,031
2004	1,333
2005	1,112
2006	851
2007	1,955
2008	1,170
2009	1,414
2010	1,028
2011	987
2012	1,086
2013	545
2014	582
2015	1,075
2016	872
2017	324
2018	657
2019	698
2020	1,051
2021	1,028
2022	1,038
2023	1,479
2024	589
2025	1,134
2026	985

Download the Data

Data for records on 1989-08-20: 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	428
20 to 40	37
40 to 60	6
60 to 80	5
80 to 100	2