Weather Records on 18 May 2009

1,368 weather records were set or tied worldwide on 18 May 2009. Highest significance: Hazlehurst, US.

Key Facts for 18 May 2009

On 18 May 2009, 1,368 weather records were set or tied at long-record stations worldwide.
551 were record highs and 634 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 38 monthly and 1,330 daily.
Hazlehurst set a daily record precipitation of 67.3 mm (2.6 in) on 18 May 2009.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 437 records.

Record Map

1,368 stations

1,368 station records on 18 May 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hazlehurst	United States	Record daily precipitation	67.3 mm (2.6 in)	67 of 100 (Major)
Daytona Beach Intl AP	United States	Record daily precipitation	103.6 mm (4.1 in)	64 of 100 (Major)
Willard 4 SW	United States	Record low maximum temperature	14.4 C (57.9 F)	60 of 100 (Major)
Zmeinogorsk	Russia	Record daily precipitation	29.8 mm (1.2 in)	59 of 100 (Notable)
Eastman 1 W	United States	Record daily precipitation	53.1 mm (2.1 in)	57 of 100 (Notable)
Abbeville 4S	United States	Record daily precipitation	84.6 mm (3.3 in)	54 of 100 (Notable)
St Petersburg	United States	Record daily precipitation	38.9 mm (1.5 in)	53 of 100 (Notable)
Sholapur	India	Record daily precipitation	48.0 mm (1.9 in)	52 of 100 (Notable)
Woodlea	Australia	Record daily precipitation	58.0 mm (2.3 in)	51 of 100 (Notable)
Bushnell 1 E	United States	Record low maximum temperature	21.7 C (71.1 F)	51 of 100 (Notable)
Glennville 3NW	United States	Record low maximum temperature	16.7 C (62.1 F)	51 of 100 (Notable)
Washington Wwtp 4W	United States	Record daily precipitation	50.3 mm (2.0 in)	50 of 100 (Notable)
Waynesboro 2 S	United States	Record daily precipitation	45.2 mm (1.8 in)	49 of 100 (Notable)
Tarpon Spgs Sewage Plt	United States	Record low maximum temperature	23.9 C (75.0 F)	48 of 100 (Notable)
Cordele	United States	Record low maximum temperature	13.9 C (57.0 F)	47 of 100 (Notable)
Midville Exp STN	United States	Record daily precipitation	93.5 mm (3.7 in)	47 of 100 (Notable)
Patterson	United States	Record daily precipitation	75.2 mm (3.0 in)	46 of 100 (Notable)
Winnsboro 5 SSE	United States	Record low maximum temperature	21.1 C (70.0 F)	46 of 100 (Notable)
Gospic	Croatia	Record high maximum temperature	29.0 C (84.2 F)	45 of 100 (Notable)
Sapelo Is	United States	Record daily precipitation	75.4 mm (3.0 in)	45 of 100 (Notable)
Rapa	French Polynesia	Record daily precipitation	109.0 mm (4.3 in)	44 of 100 (Notable)
Americus	United States	Record daily precipitation	38.4 mm (1.5 in)	44 of 100 (Notable)
Marlinton	United States	Record low minimum temperature	-2.8 C (27.0 F)	44 of 100 (Notable)
Philippi	United States	Record low maximum temperature	13.9 C (57.0 F)	44 of 100 (Notable)
Wetumpka	United States	Record low maximum temperature	18.9 C (66.0 F)	43 of 100 (Notable)
Hillsborough Rvr Sp	United States	Record daily precipitation	87.9 mm (3.5 in)	43 of 100 (Notable)
Sandy Hook	United States	Record low minimum temperature	5.6 C (42.1 F)	43 of 100 (Notable)
Marshall	United States	Record low maximum temperature	12.2 C (54.0 F)	43 of 100 (Notable)
Eufaula Wildlife Ref	United States	Record daily precipitation	109.2 mm (4.3 in)	42 of 100 (Notable)
Salida	United States	Record high maximum temperature	30.0 C (86.0 F)	42 of 100 (Notable)
Moultrie 2 ESE	United States	Record low maximum temperature	19.4 C (66.9 F)	42 of 100 (Notable)
Greeneville Exp STN	United States	Record low maximum temperature	14.4 C (57.9 F)	42 of 100 (Notable)
Woodruff	United States	Record high maximum temperature	29.4 C (84.9 F)	42 of 100 (Notable)
Gainesville Rgnl AP	United States	Record low maximum temperature	21.1 C (70.0 F)	42 of 100 (Notable)
Headland	United States	Record daily precipitation	62.0 mm (2.4 in)	41 of 100 (Notable)
Des Arc	United States	Record low maximum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Tifton	United States	Record low maximum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Florence 8 NE	United States	Record daily precipitation	25.1 mm (1.0 in)	41 of 100 (Notable)
Rocky Mt	United States	Record low maximum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
La Mesilla	Mexico	Record daily precipitation	59.9 mm (2.4 in)	40 of 100 (Notable)
Neozhidannyj	Russia	Record daily precipitation	48.6 mm (1.9 in)	40 of 100 (Notable)
Brunswick	United States	Record low maximum temperature	20.0 C (68.0 F)	40 of 100 (Notable)
Eastman 1 W	United States	Record low maximum temperature	21.1 C (70.0 F)	40 of 100 (Notable)
Springview 2NW	United States	Record high maximum temperature	34.4 C (93.9 F)	40 of 100 (Notable)
Castle Dale	United States	Record high maximum temperature	32.2 C (90.0 F)	40 of 100 (Notable)
Richfield Radio Ksvc	United States	Record high maximum temperature	32.2 C (90.0 F)	40 of 100 (Notable)
Philippi	United States	Record low minimum temperature	0.6 C (33.1 F)	40 of 100 (Notable)
Wamsutter	United States	Record high maximum temperature	28.3 C (82.9 F)	40 of 100 (Notable)
Alma Bacon Co AP	United States	Record low maximum temperature	20.0 C (68.0 F)	40 of 100 (Notable)
Merced	United States	Record high minimum temperature	21.1 C (70.0 F)	39 of 100 (Notable)
Bloomington Indiana UNIV	United States	Record low minimum temperature	2.8 C (37.0 F)	39 of 100 (Notable)
Lake Arthur 7 SW	United States	Record low maximum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Harbor Beach 1 SSE	United States	Record low minimum temperature	-1.7 C (28.9 F)	39 of 100 (Notable)
Collins	United States	Record low maximum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Tallahassee	United States	Record low maximum temperature	21.1 C (70.0 F)	39 of 100 (Notable)
Brisbane Aero	Australia	Record daily precipitation	82.3 mm (3.2 in)	38 of 100 (Notable)
El Platanito	Mexico	Record low maximum temperature	29.4 C (84.9 F)	38 of 100 (Notable)
Elba	United States	Record daily precipitation	80.3 mm (3.2 in)	38 of 100 (Notable)
Carrollton	United States	Record low maximum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Banner Elk	United States	Record low maximum temperature	10.6 C (51.1 F)	38 of 100 (Notable)

Counts by Type and Timescale

1,368 records

Records set or tied on 18 May 2009 by type: Highest daily maximum 373, Lowest daily maximum 410, Highest daily minimum 178, Lowest daily minimum 224, Heaviest daily rainfall 182, Heaviest daily snowfall 1.

Records on 18 May 2009 by type
Record type	Records
Highest daily maximum	373
Lowest daily maximum	410
Highest daily minimum	178
Lowest daily minimum	224
Heaviest daily rainfall	182
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 18 May 2009 by timescale: all-time 0, monthly 38, daily 1,330.

How Much Records Were Beaten By

997 broken records

Margins by which the 997 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 84.1. Ties are not counted.

Top 20 by Significance

18 May 2009

Top 20 records on 18 May 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 2009	Hazlehurst, US	daily rain	67.3 mm (2.6 in)	63.0 mm (2.5 in)	60 years	67 of 100 (Major)
18 May 2009	Daytona Beach Intl AP, US	daily rain	103.6 mm (4.1 in)	60.9 mm (2.4 in)	56 years	64 of 100 (Major)
18 May 2009	Willard 4 SW, US	daily low max	14.4 C (57.9 F)	7.8 C (14.0 F)	99 years	60 of 100 (Major)
18 May 2009	Zmeinogorsk, RU	daily rain	29.8 mm (1.2 in)	13.1 mm (0.5 in)	102 years	59 of 100 (Notable)
18 May 2009	Eastman 1 W, US	daily rain	53.1 mm (2.1 in)	25.4 mm (1.0 in)	100 years	57 of 100 (Notable)
18 May 2009	Abbeville 4S, US	daily rain	84.6 mm (3.3 in)	49.5 mm (1.9 in)	32 years	54 of 100 (Notable)
18 May 2009	St Petersburg, US	daily rain	38.9 mm (1.5 in)	32.0 mm (1.3 in)	88 years	53 of 100 (Notable)
18 May 2009	Sholapur, IN	daily rain	48.0 mm (1.9 in)	16.0 mm (0.6 in)	92 years	52 of 100 (Notable)
18 May 2009	Woodlea, AU	daily rain	58.0 mm (2.3 in)	42.8 mm (1.7 in)	52 years	51 of 100 (Notable)
18 May 2009	Bushnell 1 E, US	daily low max	21.7 C (71.1 F)	5.5 C (9.9 F)	66 years	51 of 100 (Notable)
18 May 2009	Glennville 3NW, US	daily low max	16.7 C (62.1 F)	6.1 C (11.0 F)	76 years	51 of 100 (Notable)
18 May 2009	Washington Wwtp 4W, US	daily rain	50.3 mm (2.0 in)	13.7 mm (0.5 in)	108 years	50 of 100 (Notable)
18 May 2009	Waynesboro 2 S, US	daily rain	45.2 mm (1.8 in)	12.2 mm (0.5 in)	100 years	49 of 100 (Notable)
18 May 2009	Tarpon Spgs Sewage Plt, US	daily low max	23.9 C (75.0 F)	2.8 C (5.0 F)	88 years	48 of 100 (Notable)
18 May 2009	Cordele, US	monthly low max	13.9 C (57.0 F)	3.9 C (7.0 F)	55 years	47 of 100 (Notable)
18 May 2009	Midville Exp STN, US	daily rain	93.5 mm (3.7 in)	65.6 mm (2.6 in)	7 years	47 of 100 (Notable)
18 May 2009	Patterson, US	daily rain	75.2 mm (3.0 in)	55.4 mm (2.2 in)	34 years	46 of 100 (Notable)
18 May 2009	Winnsboro 5 SSE, US	daily low max	21.1 C (70.0 F)	2.2 C (4.0 F)	114 years	46 of 100 (Notable)
18 May 2009	Gospic, HR	daily high max	29.0 C (84.2 F)	2.5 C (4.5 F)	104 years	45 of 100 (Notable)
18 May 2009	Sapelo Is, US	daily rain	75.4 mm (3.0 in)	44.7 mm (1.8 in)	34 years	45 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

1796 to 2009

Records set or tied on this calendar date in each year from 1796 to 2009. 2009 had 1,368 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 2009-05-18: 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).

Histogram of margins by which records were beaten on 18 May 2009
Margin	Records
0 to 20	962
20 to 40	20
40 to 60	10
60 to 80	4
80 to 100	1