Weather Records on 9 May 1990

850 weather records were set or tied worldwide on 9 May 1990. Highest significance: Jomo Kenyatta Intl, KE.

Key Facts for 9 May 1990

On 9 May 1990, 850 weather records were set or tied at long-record stations worldwide.
232 were record highs and 242 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 19 monthly and 830 daily.
Jomo Kenyatta Intl set an all-time record daily precipitation of 207.0 mm (8.1 in) on 9 May 1990.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 430 records.

Record Map

850 stations

850 station records on 9 May 1990 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 1990: highest significance records shown on the map
Station	Country	Type	Value	Significance
Jomo Kenyatta Intl	Kenya	Record daily precipitation	207.0 mm (8.1 in)	71 of 100 (Major)
Hartford Wwtp	United States	Record daily snowfall	10.2 cm (4.0 in)	67 of 100 (Major)
Oconomowoc Wwtp	United States	Record daily snowfall	8.6 cm (3.4 in)	62 of 100 (Major)
Rochester Intl AP	United States	Record daily precipitation	44.7 mm (1.8 in)	59 of 100 (Notable)
Chicago Midway AP 3SW	United States	Record daily precipitation	59.2 mm (2.3 in)	56 of 100 (Notable)
Peotone	United States	Record daily precipitation	71.9 mm (2.8 in)	56 of 100 (Notable)
Crescent Head	Australia	Record daily precipitation	128.6 mm (5.1 in)	55 of 100 (Notable)
Titonka	United States	Record daily precipitation	58.4 mm (2.3 in)	54 of 100 (Notable)
Soria	Spain	Record daily precipitation	42.4 mm (1.7 in)	53 of 100 (Notable)
Hartford Wwtp	United States	Record daily precipitation	55.9 mm (2.2 in)	52 of 100 (Notable)
Antioch	United States	Record daily precipitation	44.2 mm (1.7 in)	51 of 100 (Notable)
Reedsburg Wwtp	United States	Record daily precipitation	57.2 mm (2.3 in)	51 of 100 (Notable)
Orange	United States	Record daily precipitation	74.7 mm (2.9 in)	50 of 100 (Notable)
Wisconsin Rapids	United States	Record daily precipitation	37.1 mm (1.5 in)	50 of 100 (Notable)
Chicago Ohare Intl AP	United States	Record daily precipitation	79.8 mm (3.1 in)	49 of 100 (Notable)
Goudveld (Bos)	South Africa	Record daily precipitation	29.5 mm (1.2 in)	48 of 100 (Notable)
Grundy Ctr	United States	Record daily precipitation	73.2 mm (2.9 in)	48 of 100 (Notable)
Wausau ASOS	United States	Record daily precipitation	44.7 mm (1.8 in)	48 of 100 (Notable)
Perry	United States	Record daily precipitation	73.2 mm (2.9 in)	46 of 100 (Notable)
Fairmont	United States	Record daily precipitation	52.3 mm (2.1 in)	46 of 100 (Notable)
Swea City 5N	United States	Record daily precipitation	49.5 mm (1.9 in)	44 of 100 (Notable)
Cheboygan	United States	Record daily precipitation	39.9 mm (1.6 in)	44 of 100 (Notable)
Saint Paul	United States	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Lottering (Bos)	South Africa	Record daily precipitation	65.0 mm (2.6 in)	43 of 100 (Notable)
Lenora Coop	United States	Record daily precipitation	43.2 mm (1.7 in)	43 of 100 (Notable)
Mondovi	United States	Record daily precipitation	48.5 mm (1.9 in)	41 of 100 (Notable)
Oconomowoc Wwtp	United States	Record daily precipitation	43.2 mm (1.7 in)	41 of 100 (Notable)
Lares	Puerto Rico [United States]	Record daily precipitation	102.9 mm (4.1 in)	40 of 100 (Notable)
Grangeville	United States	Record low minimum temperature	-2.8 C (27.0 F)	40 of 100 (Notable)
Emmetsburg	United States	Record daily precipitation	38.1 mm (1.5 in)	40 of 100 (Notable)
Longville	United States	Record daily precipitation	104.4 mm (4.1 in)	40 of 100 (Notable)
Brillion	United States	Record snow depth	12.7 cm (5.0 in)	40 of 100 (Notable)
La Crosse River	United States	Record daily precipitation	39.1 mm (1.5 in)	40 of 100 (Notable)
Elko Rgnl AP	United States	Record low minimum temperature	-7.2 C (19.0 F)	40 of 100 (Notable)
Vastervik	Sweden	Record high maximum temperature	24.5 C (76.1 F)	39 of 100 (Notable)
Rupert 3 WSW	United States	Record low minimum temperature	-3.9 C (25.0 F)	39 of 100 (Notable)
Munising	United States	Record daily precipitation	42.4 mm (1.7 in)	39 of 100 (Notable)
Beaumont City	United States	Record daily precipitation	61.0 mm (2.4 in)	39 of 100 (Notable)
Callao	United States	Record low minimum temperature	-5.6 C (21.9 F)	39 of 100 (Notable)
Castle Dale	United States	Record low minimum temperature	-7.2 C (19.0 F)	39 of 100 (Notable)
Heber	United States	Record low minimum temperature	-6.7 C (19.9 F)	39 of 100 (Notable)
Lincoln UNIV Pwr Plt	United States	Record daily precipitation	48.8 mm (1.9 in)	39 of 100 (Notable)
Bloukrans (Bos)	South Africa	Record daily precipitation	43.6 mm (1.7 in)	38 of 100 (Notable)
Harnosand	Sweden	Record high minimum temperature	7.0 C (44.6 F)	38 of 100 (Notable)
Halmstad	Sweden	Record high maximum temperature	25.4 C (77.7 F)	38 of 100 (Notable)
Macomb	United States	Record daily precipitation	60.5 mm (2.4 in)	38 of 100 (Notable)
Petoskey	United States	Record daily precipitation	30.7 mm (1.2 in)	38 of 100 (Notable)
Koebenhavn: Landbohojskolen-1	Denmark	Record high minimum temperature	12.4 C (54.3 F)	37 of 100 (Notable)
Zharkent	Kazakhstan	Record high minimum temperature	19.6 C (67.3 F)	37 of 100 (Notable)
Juarez	Mexico	Record low minimum temperature	5.6 C (42.1 F)	37 of 100 (Notable)
Guthrie Ctr	United States	Record daily precipitation	52.1 mm (2.1 in)	37 of 100 (Notable)
Augusta	United States	Record low minimum temperature	-8.9 C (16.0 F)	37 of 100 (Notable)
Malcolm	United States	Record daily precipitation	47.8 mm (1.9 in)	37 of 100 (Notable)
Alvin	United States	Record low maximum temperature	22.8 C (73.0 F)	37 of 100 (Notable)
Madison Dane Co Rgnl AP	United States	Record daily precipitation	39.9 mm (1.6 in)	37 of 100 (Notable)
Collbran	United States	Record low minimum temperature	-7.8 C (18.0 F)	36 of 100 (Notable)
Blue Earth	United States	Record daily precipitation	39.1 mm (1.5 in)	36 of 100 (Notable)
Winona	United States	Record daily precipitation	36.8 mm (1.4 in)	36 of 100 (Notable)
Tewantin Post Office	Australia	Record daily precipitation	42.0 mm (1.7 in)	35 of 100 (Notable)
Koebenhavn: Landbohojskolen-1	Denmark	Record high maximum temperature	24.0 C (75.2 F)	35 of 100 (Notable)

Counts by Type and Timescale

850 records

Records set or tied on 9 May 1990 by type: Highest daily maximum 90, Lowest daily maximum 52, Highest daily minimum 142, Lowest daily minimum 190, Heaviest daily rainfall 334, Heaviest daily snowfall 27, Deepest snow cover 15.

Records on 9 May 1990 by type
Record type	Records
Highest daily maximum	90
Lowest daily maximum	52
Highest daily minimum	142
Lowest daily minimum	190
Heaviest daily rainfall	334
Heaviest daily snowfall	27
Deepest snow cover	15

Records on 9 May 1990 by timescale: all-time 1, monthly 19, daily 830.

How Much Records Were Beaten By

725 broken records

Margins by which the 725 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

9 May 1990

Top 20 records on 9 May 1990 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 1990	Jomo Kenyatta Intl, KE	all-time rain	207.0 mm (8.1 in)	94.7 mm (3.7 in)	28 years	71 of 100 (Major)
9 May 1990	Hartford Wwtp, US	monthly snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	94 years	67 of 100 (Major)
9 May 1990	Oconomowoc Wwtp, US	monthly snowfall	8.6 cm (3.4 in)	7.3 cm (2.9 in)	97 years	62 of 100 (Major)
9 May 1990	Rochester Intl AP, US	daily rain	44.7 mm (1.8 in)	28.2 mm (1.1 in)	72 years	59 of 100 (Notable)
9 May 1990	Chicago Midway AP 3SW, US	daily rain	59.2 mm (2.3 in)	43.5 mm (1.7 in)	33 years	56 of 100 (Notable)
9 May 1990	Peotone, US	daily rain	71.9 mm (2.8 in)	58.7 mm (2.3 in)	37 years	56 of 100 (Notable)
9 May 1990	Crescent Head, AU	daily rain	128.6 mm (5.1 in)	96.3 mm (3.8 in)	24 years	55 of 100 (Notable)
9 May 1990	Titonka, US	daily rain	58.4 mm (2.3 in)	44.7 mm (1.8 in)	35 years	54 of 100 (Notable)
9 May 1990	Soria, ES	daily rain	42.4 mm (1.7 in)	35.2 mm (1.4 in)	32 years	53 of 100 (Notable)
9 May 1990	Hartford Wwtp, US	daily rain	55.9 mm (2.2 in)	32.3 mm (1.3 in)	27 years	52 of 100 (Notable)
9 May 1990	Antioch, US	daily rain	44.2 mm (1.7 in)	31.5 mm (1.2 in)	41 years	51 of 100 (Notable)
9 May 1990	Reedsburg Wwtp, US	daily rain	57.2 mm (2.3 in)	32.3 mm (1.3 in)	40 years	51 of 100 (Notable)
9 May 1990	Orange, US	daily rain	74.7 mm (2.9 in)	49.3 mm (1.9 in)	83 years	50 of 100 (Notable)
9 May 1990	Wisconsin Rapids, US	daily rain	37.1 mm (1.5 in)	21.9 mm (0.9 in)	72 years	50 of 100 (Notable)
9 May 1990	Chicago Ohare Intl AP, US	daily rain	79.8 mm (3.1 in)	68.1 mm (2.7 in)	20 years	49 of 100 (Notable)
9 May 1990	Goudveld (Bos), ZA	daily rain	29.5 mm (1.2 in)	11.5 mm (0.5 in)	101 years	48 of 100 (Notable)
9 May 1990	Grundy Ctr, US	daily rain	73.2 mm (2.9 in)	31.8 mm (1.3 in)	40 years	48 of 100 (Notable)
9 May 1990	Wausau ASOS, US	daily rain	44.7 mm (1.8 in)	30.0 mm (1.2 in)	40 years	48 of 100 (Notable)
9 May 1990	Perry, US	daily rain	73.2 mm (2.9 in)	34.6 mm (1.4 in)	35 years	46 of 100 (Notable)
9 May 1990	Fairmont, US	daily rain	52.3 mm (2.1 in)	28.9 mm (1.1 in)	40 years	46 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

1793 to 1990

Records set or tied on this calendar date in each year from 1793 to 1990. 1990 had 850 records.

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

Records on 05-09 in each year
Year	Records
1793	1
1795	1
1806	1
1810	1
1823	1
1834	1
1838	1
1843	1
1845	2
1846	1
1848	1
1850	2
1855	2
1857	1
1858	1
1861	1
1862	1
1864	2
1865	2
1867	2
1872	1
1873	2
1874	1
1875	2
1879	4
1880	3
1882	1
1883	2
1884	3
1885	3
1889	3
1890	3
1891	3
1892	1
1893	1
1895	2
1896	4
1897	3
1898	3
1899	2
1900	2
1901	9
1902	8
1903	9
1904	14
1905	34
1906	41
1907	11
1908	16
1909	34
1910	45
1911	23
1912	23
1913	15
1914	43
1915	27
1916	26
1917	50
1918	49
1919	47
1920	56
1921	102
1922	45
1923	461
1924	262
1925	123
1926	196
1927	343
1928	302
1929	166
1930	526
1931	411
1932	132
1933	482
1934	750
1935	111
1936	622
1937	128
1938	171
1939	345
1940	237
1941	335
1942	180
1943	524
1944	412
1945	538
1946	278
1947	1,145
1948	379
1949	417
1950	660
1951	188
1952	348
1953	507
1954	489
1955	288
1956	722
1957	505
1958	355
1959	252
1960	748
1961	516
1962	435
1963	1,103
1964	503
1965	730
1966	994
1967	681
1968	545
1969	653
1970	372
1971	338
1972	587
1973	386
1974	699
1975	465
1976	714
1977	931
1978	649
1979	1,605
1980	1,030
1981	639
1982	523
1983	872
1984	892
1985	829
1986	1,253
1987	1,481
1988	594
1989	1,347
1990	850
1991	759
1992	1,476
1993	967
1994	573
1995	960
1996	1,260
1997	1,088
1998	1,182
1999	970
2000	1,114
2001	969
2002	1,489
2003	1,802
2004	926
2005	851
2006	738
2007	765
2008	693
2009	816
2010	764
2011	1,104
2012	686
2013	684
2014	754
2015	689
2016	917
2017	539
2018	879
2019	1,043
2020	1,673
2021	501
2022	1,308
2023	474
2024	792
2025	622
2026	309

Download the Data

Data for records on 1990-05-09: 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	653
20 to 40	49
40 to 60	14
60 to 80	4
80 to 100	3
100 to 120	1
120 to 140	1