Weather Records on 20 July 1989

1,183 weather records were set or tied worldwide on 20 July 1989. Highest significance: Naalehu 14, US.

Key Facts for 20 July 1989

On 20 July 1989, 1,183 weather records were set or tied at long-record stations worldwide.
472 were record highs and 477 were record lows, counting maximum and minimum temperature.
By timescale, 12 were all-time records, 23 monthly and 1,148 daily.
Naalehu 14 set a daily record precipitation of 166.9 mm (6.6 in) on 20 July 1989.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 455 records.

Record Map

1,183 stations

1,183 station records on 20 July 1989 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1989: highest significance records shown on the map
Station	Country	Type	Value	Significance
Naalehu 14	United States	Record daily precipitation	166.9 mm (6.6 in)	67 of 100 (Major)
Kaneohe Bay MCAS	United States	Record daily precipitation	42.7 mm (1.7 in)	65 of 100 (Major)
Honolulu Intl AP	United States	Record daily precipitation	55.4 mm (2.2 in)	65 of 100 (Major)
Barbers Point NAS	United States	Record daily precipitation	54.1 mm (2.1 in)	63 of 100 (Major)
Toledo Blade	United States	Record daily precipitation	55.4 mm (2.2 in)	56 of 100 (Notable)
Galway	Ireland	Record high minimum temperature	18.6 C (65.5 F)	50 of 100 (Notable)
Kulani Camp 79	United States	Record daily precipitation	152.4 mm (6.0 in)	50 of 100 (Notable)
Kalihi Rsch Site 777	United States	Record daily precipitation	118.9 mm (4.7 in)	49 of 100 (Notable)
Toledo Express AP	United States	Record daily precipitation	72.6 mm (2.9 in)	49 of 100 (Notable)
El Paso de Iritu	Mexico	Record low minimum temperature	8.9 C (48.0 F)	48 of 100 (Notable)
Grand Coteau	United States	Record daily precipitation	83.8 mm (3.3 in)	48 of 100 (Notable)
Mt Clemens Ang Base	United States	Record daily precipitation	41.9 mm (1.6 in)	48 of 100 (Notable)
Wilmington Porter Rsch	United States	Record daily precipitation	101.1 mm (4.0 in)	47 of 100 (Notable)
Nuuanu Rsch 4 783	United States	Record daily precipitation	132.6 mm (5.2 in)	47 of 100 (Notable)
Shelbyville 1 E	United States	Record daily precipitation	58.4 mm (2.3 in)	46 of 100 (Notable)
Abbeville	United States	Record daily precipitation	70.1 mm (2.8 in)	46 of 100 (Notable)
Greenville Wtp	United States	Record daily precipitation	84.3 mm (3.3 in)	45 of 100 (Notable)
Romney 1 SW	United States	Record daily precipitation	36.8 mm (1.4 in)	45 of 100 (Notable)
Palolo Vly 718	United States	Record daily precipitation	99.6 mm (3.9 in)	45 of 100 (Notable)
Donnybrook	Australia	Record daily precipitation	61.6 mm (2.4 in)	44 of 100 (Notable)
Armagh	United Kingdom	Record high maximum temperature	27.4 C (81.3 F)	44 of 100 (Notable)
Joquicingo	Mexico	Record daily precipitation	54.9 mm (2.2 in)	43 of 100 (Notable)
Indiga	Russia	Record daily precipitation	26.8 mm (1.1 in)	43 of 100 (Notable)
Lugansk	Ukraine	Record daily precipitation	29.2 mm (1.1 in)	43 of 100 (Notable)
Visby_Flygplats	Sweden	Record low minimum temperature	6.3 C (43.3 F)	42 of 100 (Notable)
Alicia 2 NNE	United States	Record low maximum temperature	23.9 C (75.0 F)	42 of 100 (Notable)
The Warriups	Australia	Record daily precipitation	40.0 mm (1.6 in)	41 of 100 (Notable)
Rezekne	Latvia	Record daily precipitation	29.2 mm (1.1 in)	41 of 100 (Notable)
Tecolutla	Mexico	Record low minimum temperature	15.6 C (60.1 F)	41 of 100 (Notable)
Karlstad	Sweden	Record low minimum temperature	3.8 C (38.8 F)	41 of 100 (Notable)
Portsmouth-Sciotoville	United States	Record low maximum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Ibapah	United States	Record high minimum temperature	21.1 C (70.0 F)	41 of 100 (Notable)
Bordeaux-Merignac	France	Record high maximum temperature	38.2 C (100.8 F)	40 of 100 (Notable)
San Miguel Ejutla	Mexico	Record low maximum temperature	18.9 C (66.0 F)	40 of 100 (Notable)
Malvern	United Kingdom	Record high maximum temperature	31.8 C (89.2 F)	40 of 100 (Notable)
Charlotte	United States	Record daily precipitation	26.7 mm (1.1 in)	40 of 100 (Notable)
Boscabel	Australia	Record daily precipitation	26.0 mm (1.0 in)	39 of 100 (Notable)
Nurnberg	Germany	Record low minimum temperature	5.6 C (42.1 F)	39 of 100 (Notable)
Ra-Iz	Russia	Record high maximum temperature	25.5 C (77.9 F)	39 of 100 (Notable)
Ust Tzilma	Russia	Record high minimum temperature	20.6 C (69.1 F)	39 of 100 (Notable)
Eureka Springs 3 WNW	United States	Record low maximum temperature	23.3 C (73.9 F)	39 of 100 (Notable)
Petrun	Russia	Record high maximum temperature	33.7 C (92.7 F)	38 of 100 (Notable)
Pechora	Russia	Record high maximum temperature	43.1 C (109.6 F)	38 of 100 (Notable)
Vanersborg	Sweden	Record low minimum temperature	6.3 C (43.3 F)	38 of 100 (Notable)
Grace	United States	Record high maximum temperature	37.2 C (99.0 F)	38 of 100 (Notable)
Dixon Wwtp	United States	Record low maximum temperature	20.6 C (69.1 F)	38 of 100 (Notable)
Elgin Water	United States	Record low maximum temperature	22.2 C (72.0 F)	38 of 100 (Notable)
W Liberty 3NW	United States	Record daily precipitation	76.2 mm (3.0 in)	38 of 100 (Notable)
Sedalia Wtp	United States	Record low maximum temperature	24.4 C (75.9 F)	38 of 100 (Notable)
Hillsboro	United States	Record low minimum temperature	18.3 C (64.9 F)	38 of 100 (Notable)
Levan	United States	Record high maximum temperature	39.4 C (102.9 F)	38 of 100 (Notable)
Pauoa Flats 784	United States	Record daily precipitation	134.1 mm (5.3 in)	38 of 100 (Notable)
Waiakea Scd 88.2	United States	Record daily precipitation	144.8 mm (5.7 in)	38 of 100 (Notable)
Marshall	United States	Record low maximum temperature	23.9 C (75.0 F)	38 of 100 (Notable)
Brest-Guipavas	France	Record high maximum temperature	31.7 C (89.1 F)	37 of 100 (Notable)
Karlsruhe	Germany	Record low minimum temperature	8.4 C (47.1 F)	37 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record low minimum temperature	7.1 C (44.8 F)	37 of 100 (Notable)
Liepaja	Latvia	Record low minimum temperature	8.5 C (47.3 F)	37 of 100 (Notable)
Cartersville	United States	Record low maximum temperature	27.8 C (82.0 F)	37 of 100 (Notable)
Troupsburg 4 NE	United States	Record daily precipitation	51.3 mm (2.0 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,183 records

Records set or tied on 20 July 1989 by type: Highest daily maximum 256, Lowest daily maximum 225, Highest daily minimum 216, Lowest daily minimum 252, Heaviest daily rainfall 234.

Records on 20 July 1989 by type
Record type	Records
Highest daily maximum	256
Lowest daily maximum	225
Highest daily minimum	216
Lowest daily minimum	252
Heaviest daily rainfall	234
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1989 by timescale: all-time 12, monthly 23, daily 1,148.

How Much Records Were Beaten By

904 broken records

Margins by which the 904 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 147.8. Ties are not counted.

Top 20 by Significance

20 July 1989

Top 20 records on 20 July 1989 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1989	Naalehu 14, US	daily rain	166.9 mm (6.6 in)	147.8 mm (5.8 in)	64 years	67 of 100 (Major)
20 July 1989	Kaneohe Bay MCAS, US	monthly rain	42.7 mm (1.7 in)	14.0 mm (0.6 in)	46 years	65 of 100 (Major)
20 July 1989	Honolulu Intl AP, US	monthly rain	55.4 mm (2.2 in)	31.0 mm (1.2 in)	34 years	65 of 100 (Major)
20 July 1989	Barbers Point NAS, US	monthly rain	54.1 mm (2.1 in)	23.4 mm (0.9 in)	33 years	63 of 100 (Major)
20 July 1989	Toledo Blade, US	daily rain	55.4 mm (2.2 in)	22.4 mm (0.9 in)	92 years	56 of 100 (Notable)
20 July 1989	Galway, IE	daily high min	18.6 C (65.5 F)	2.5 C (4.5 F)	101 years	50 of 100 (Notable)
20 July 1989	Kulani Camp 79, US	daily rain	152.4 mm (6.0 in)	68.6 mm (2.7 in)	20 years	50 of 100 (Notable)
20 July 1989	Kalihi Rsch Site 777, US	daily rain	118.9 mm (4.7 in)	87.9 mm (3.5 in)	8 years	49 of 100 (Notable)
20 July 1989	Toledo Express AP, US	daily rain	72.6 mm (2.9 in)	44.4 mm (1.7 in)	27 years	49 of 100 (Notable)
20 July 1989	El Paso de Iritu, MX	daily low min	8.9 C (48.0 F)	8.9 C (16.0 F)	20 years	48 of 100 (Notable)
20 July 1989	Grand Coteau, US	daily rain	83.8 mm (3.3 in)	20.3 mm (0.8 in)	92 years	48 of 100 (Notable)
20 July 1989	Mt Clemens Ang Base, US	daily rain	41.9 mm (1.6 in)	15.5 mm (0.6 in)	87 years	48 of 100 (Notable)
20 July 1989	Wilmington Porter Rsch, US	daily rain	101.1 mm (4.0 in)	66.8 mm (2.6 in)	14 years	47 of 100 (Notable)
20 July 1989	Nuuanu Rsch 4 783, US	daily rain	132.6 mm (5.2 in)	102.1 mm (4.0 in)	8 years	47 of 100 (Notable)
20 July 1989	Shelbyville 1 E, US	daily rain	58.4 mm (2.3 in)	16.0 mm (0.6 in)	92 years	46 of 100 (Notable)
20 July 1989	Abbeville, US	daily rain	70.1 mm (2.8 in)	19.3 mm (0.8 in)	88 years	46 of 100 (Notable)
20 July 1989	Greenville Wtp, US	daily rain	84.3 mm (3.3 in)	43.4 mm (1.7 in)	7 years	45 of 100 (Notable)
20 July 1989	Romney 1 SW, US	daily rain	36.8 mm (1.4 in)	19.0 mm (0.7 in)	58 years	45 of 100 (Notable)
20 July 1989	Palolo Vly 718, US	daily rain	99.6 mm (3.9 in)	51.3 mm (2.0 in)	40 years	45 of 100 (Notable)
20 July 1989	Donnybrook, AU	daily rain	61.6 mm (2.4 in)	22.0 mm (0.9 in)	58 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 1989

Records set or tied on this calendar date in each year from 1809 to 1989. 1989 had 1,183 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 1989-07-20: 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	864
20 to 40	25
40 to 60	9
60 to 80	3
80 to 100	1
100 to 120	1
120 to 140	0
140 to 160	1