Weather Records on 9 May 2018

879 weather records were set or tied worldwide on 9 May 2018. Highest significance: Maracay - B.A. Sucr, VE.

Key Facts for 9 May 2018

On 9 May 2018, 879 weather records were set or tied at long-record stations worldwide.
760 were record highs and 33 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 6 monthly and 873 daily.
Maracay - B.A. Sucr set a monthly record daily precipitation of 129.0 mm (5.1 in) on 9 May 2018.
Across 166 earlier years (1793 to 2026) the same calendar date averaged 430 records.

Record Map

879 stations

879 station records on 9 May 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 May 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Maracay - B.A. Sucr	Venezuela	Record daily precipitation	129.0 mm (5.1 in)	63 of 100 (Major)
Dijon-Longvic	France	Record daily precipitation	40.1 mm (1.6 in)	60 of 100 (Major)
Lady Elliot Island	Australia	Record daily precipitation	62.8 mm (2.5 in)	55 of 100 (Notable)
Chornomorske	Ukraine	Record daily precipitation	35.1 mm (1.4 in)	52 of 100 (Notable)
Belle Fourche	United States	Record high minimum temperature	18.3 C (64.9 F)	50 of 100 (Notable)
Basel Binningen	Switzerland	Record daily precipitation	54.4 mm (2.1 in)	47 of 100 (Notable)
Winslow AP	United States	Record high maximum temperature	36.1 C (97.0 F)	46 of 100 (Notable)
Leo 6 SW	United States	Record high minimum temperature	16.7 C (62.1 F)	45 of 100 (Notable)
Maraza	Azerbaijan	Record daily precipitation	99.3 mm (3.9 in)	44 of 100 (Notable)
Glomfjord	Norway	Record high minimum temperature	12.7 C (54.9 F)	44 of 100 (Notable)
Yerington	United States	Record high maximum temperature	33.9 C (93.0 F)	44 of 100 (Notable)
Pointe Noire	Congo (Brazzaville)	Record daily precipitation	89.9 mm (3.5 in)	43 of 100 (Notable)
Uman	Ukraine	Record high minimum temperature	16.7 C (62.1 F)	43 of 100 (Notable)
Alpine	United States	Record high maximum temperature	27.8 C (82.0 F)	43 of 100 (Notable)
Fairmont	United States	Record high minimum temperature	21.7 C (71.1 F)	43 of 100 (Notable)
Coeur D'Alene	United States	Record high minimum temperature	12.2 C (54.0 F)	43 of 100 (Notable)
Sedro-Woolley	United States	Record high minimum temperature	13.9 C (57.0 F)	43 of 100 (Notable)
Falun	Sweden	Record high minimum temperature	11.9 C (53.4 F)	42 of 100 (Notable)
Mancos 1SW	United States	Record high maximum temperature	28.3 C (82.9 F)	42 of 100 (Notable)
Kanab	United States	Record high maximum temperature	33.3 C (91.9 F)	42 of 100 (Notable)
Clearbrook	United States	Record high minimum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
N Bend SW Oregon Rgnl AP	United States	Record high minimum temperature	12.2 C (54.0 F)	42 of 100 (Notable)
Subiaco	United States	Record high maximum temperature	33.3 C (91.9 F)	41 of 100 (Notable)
University	United States	Record high maximum temperature	32.8 C (91.0 F)	41 of 100 (Notable)
Mina	United States	Record high minimum temperature	14.4 C (57.9 F)	41 of 100 (Notable)
Alton	United States	Record high maximum temperature	27.8 C (82.0 F)	40 of 100 (Notable)
St George	United States	Record high maximum temperature	37.2 C (99.0 F)	40 of 100 (Notable)
Crossett 2 SSE	United States	Record high maximum temperature	34.4 C (93.9 F)	39 of 100 (Notable)
Everett	United States	Record high minimum temperature	13.3 C (55.9 F)	39 of 100 (Notable)
Ashgabat	Turkmenistan	Record high maximum temperature	40.5 C (104.9 F)	38 of 100 (Notable)
Wynne	United States	Record high maximum temperature	32.8 C (91.0 F)	38 of 100 (Notable)
Tonopah	United States	Record high maximum temperature	29.4 C (84.9 F)	38 of 100 (Notable)
Castle Dale	United States	Record high maximum temperature	31.1 C (88.0 F)	38 of 100 (Notable)
Andoya	Norway	Record high maximum temperature	19.1 C (66.4 F)	37 of 100 (Notable)
Valujki	Russia	Record high minimum temperature	19.6 C (67.3 F)	37 of 100 (Notable)
Lockwood	United States	Record high maximum temperature	31.7 C (89.1 F)	37 of 100 (Notable)
Pasamonte	United States	Record high minimum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Bluff	United States	Record high maximum temperature	33.9 C (93.0 F)	37 of 100 (Notable)
Bjoernoeya	Norway	Record high maximum temperature	7.1 C (44.8 F)	36 of 100 (Notable)
Castle Hot Springs	United States	Record high maximum temperature	40.6 C (105.1 F)	36 of 100 (Notable)
Aspendell	United States	Record high maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Darby	United States	Record high minimum temperature	16.1 C (61.0 F)	36 of 100 (Notable)
Blanding	United States	Record high maximum temperature	30.0 C (86.0 F)	36 of 100 (Notable)
Flagstaff AP	United States	Record high minimum temperature	8.3 C (46.9 F)	36 of 100 (Notable)
Bartlesville Muni AP	United States	Record high maximum temperature	34.4 C (93.9 F)	36 of 100 (Notable)
Haines AP	United States	Record high minimum temperature	8.3 C (46.9 F)	36 of 100 (Notable)
Ada	United States	Record daily precipitation	37.1 mm (1.5 in)	35 of 100 (Notable)
Tromso	Norway	Record high maximum temperature	17.3 C (63.1 F)	34 of 100 (Routine)
Fruholmen Fyr	Norway	Record high maximum temperature	15.1 C (59.2 F)	34 of 100 (Routine)
Benton	United States	Record high maximum temperature	31.7 C (89.1 F)	34 of 100 (Routine)
Priest Rvr Exp STN	United States	Record high minimum temperature	10.6 C (51.1 F)	34 of 100 (Routine)
Wells	United States	Record daily precipitation	49.3 mm (1.9 in)	34 of 100 (Routine)
Karuizawa	Japan	Record daily precipitation	50.0 mm (2.0 in)	33 of 100 (Routine)
Miyakejima	Japan	Record daily precipitation	150.9 mm (5.9 in)	33 of 100 (Routine)
Astrakan	Russia	Record high minimum temperature	19.1 C (66.4 F)	33 of 100 (Routine)
Evanston 1 E	United States	Record high maximum temperature	24.4 C (75.9 F)	33 of 100 (Routine)
El Paso Intl AP	United States	Record high maximum temperature	37.8 C (100.0 F)	33 of 100 (Routine)
Porthill	United States	Record high minimum temperature	10.6 C (51.1 F)	32 of 100 (Routine)
Mahackala	Russia	Record high maximum temperature	27.3 C (81.1 F)	31 of 100 (Routine)
Chewelah	United States	Record high minimum temperature	11.1 C (52.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

879 records

Records set or tied on 9 May 2018 by type: Highest daily maximum 423, Lowest daily maximum 24, Highest daily minimum 337, Lowest daily minimum 9, Heaviest daily rainfall 86.

Records on 9 May 2018 by type
Record type	Records
Highest daily maximum	423
Lowest daily maximum	24
Highest daily minimum	337
Lowest daily minimum	9
Heaviest daily rainfall	86
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 9 May 2018 by timescale: all-time 0, monthly 6, daily 873.

How Much Records Were Beaten By

685 broken records

Margins by which the 685 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 64.0. Ties are not counted.

Top 20 by Significance

9 May 2018

Top 20 records on 9 May 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 May 2018	Maracay - B.A. Sucr, VE	monthly rain	129.0 mm (5.1 in)	64.0 mm (2.5 in)	24 years	63 of 100 (Major)
9 May 2018	Dijon-Longvic, FR	daily rain	40.1 mm (1.6 in)	16.2 mm (0.6 in)	95 years	60 of 100 (Major)
9 May 2018	Lady Elliot Island, AU	daily rain	62.8 mm (2.5 in)	49.8 mm (2.0 in)	44 years	55 of 100 (Notable)
9 May 2018	Chornomorske, UA	daily rain	35.1 mm (1.4 in)	23.1 mm (0.9 in)	16 years	52 of 100 (Notable)
9 May 2018	Belle Fourche, US	daily high min	18.3 C (64.9 F)	5.0 C (9.0 F)	99 years	50 of 100 (Notable)
9 May 2018	Basel Binningen, CH	daily rain	54.4 mm (2.1 in)	20.5 mm (0.8 in)	24 years	47 of 100 (Notable)
9 May 2018	Winslow AP, US	daily high max	36.1 C (97.0 F)	2.8 C (5.0 F)	104 years	46 of 100 (Notable)
9 May 2018	Leo 6 SW, US	monthly high min	16.7 C (62.1 F)	1.1 C (2.0 F)	83 years	45 of 100 (Notable)
9 May 2018	Maraza, AZ	monthly rain	99.3 mm (3.9 in)	13.8 mm (0.5 in)	41 years	44 of 100 (Notable)
9 May 2018	Glomfjord, NO	daily high min	12.7 C (54.9 F)	1.5 C (2.7 F)	101 years	44 of 100 (Notable)
9 May 2018	Yerington, US	daily high max	33.9 C (93.0 F)	3.3 C (5.9 F)	93 years	44 of 100 (Notable)
9 May 2018	Pointe Noire, CG	daily rain	89.9 mm (3.5 in)	39.6 mm (1.6 in)	65 years	43 of 100 (Notable)
9 May 2018	Uman, UA	daily high min	16.7 C (62.1 F)	1.3 C (2.3 F)	111 years	43 of 100 (Notable)
9 May 2018	Alpine, US	daily high max	27.8 C (82.0 F)	2.8 C (5.0 F)	88 years	43 of 100 (Notable)
9 May 2018	Fairmont, US	daily high min	21.7 C (71.1 F)	3.9 C (7.0 F)	84 years	43 of 100 (Notable)
9 May 2018	Coeur D'Alene, US	daily high min	12.2 C (54.0 F)	1.1 C (2.0 F)	119 years	43 of 100 (Notable)
9 May 2018	Sedro-Woolley, US	daily high min	13.9 C (57.0 F)	1.7 C (3.1 F)	95 years	43 of 100 (Notable)
9 May 2018	Falun, SE	daily high min	11.9 C (53.4 F)	1.1 C (2.0 F)	101 years	42 of 100 (Notable)
9 May 2018	Mancos 1SW, US	daily high max	28.3 C (82.9 F)	1.1 C (2.0 F)	101 years	42 of 100 (Notable)
9 May 2018	Kanab, US	daily high max	33.3 C (91.9 F)	1.1 C (2.0 F)	101 years	42 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 2018

Records set or tied on this calendar date in each year from 1793 to 2018. 2018 had 879 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 2018-05-09: 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 10	664
10 to 20	10
20 to 30	7
30 to 40	2
40 to 50	1
50 to 60	0
60 to 70	1