Weather Records on 11 May 2018

988 weather records were set or tied worldwide on 11 May 2018. Highest significance: Sandford (Maydena), AU.

Key Facts for 11 May 2018

On 11 May 2018, 988 weather records were set or tied at long-record stations worldwide.
605 were record highs and 79 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 38 monthly and 948 daily.
Sandford (Maydena) set a monthly record daily precipitation of 127.0 mm (5.0 in) on 11 May 2018.
Across 156 earlier years (1814 to 2026) the same calendar date averaged 460 records.

Record Map

988 stations

988 station records on 11 May 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 May 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sandford (Maydena)	Australia	Record daily precipitation	127.0 mm (5.0 in)	81 of 100 (Exceptional)
Bridgewater (Treatment Plant)	Australia	Record daily precipitation	62.0 mm (2.4 in)	78 of 100 (Major)
Melton Mowbray (Lovely Banks)	Australia	Record daily precipitation	47.2 mm (1.9 in)	78 of 100 (Major)
Yatchaw (Amaroo)	Australia	Record daily precipitation	42.0 mm (1.7 in)	76 of 100 (Major)
Fingal (Legge Street)	Australia	Record daily precipitation	45.4 mm (1.8 in)	75 of 100 (Major)
Buckland (Brockley)	Australia	Record daily precipitation	143.0 mm (5.6 in)	74 of 100 (Major)
Hobart Botanical Gardens	Australia	Record daily precipitation	103.2 mm (4.1 in)	73 of 100 (Major)
Richmond (Brookbank)	Australia	Record daily precipitation	67.2 mm (2.6 in)	73 of 100 (Major)
Jericho (Bowsden)	Australia	Record daily precipitation	97.6 mm (3.8 in)	72 of 100 (Major)
Fort Direction	Australia	Record daily precipitation	107.2 mm (4.2 in)	71 of 100 (Major)
Bothwell (Franklin Street)	Australia	Record daily precipitation	54.0 mm (2.1 in)	69 of 100 (Major)
Taroona (Taroona Crescent)	Australia	Record daily precipitation	73.0 mm (2.9 in)	68 of 100 (Major)
Ormley	Australia	Record daily precipitation	32.0 mm (1.3 in)	66 of 100 (Major)
Huonville (Tutton Avenue)	Australia	Record daily precipitation	150.0 mm (5.9 in)	66 of 100 (Major)
Great Falls 16St	United States	Record daily precipitation	32.5 mm (1.3 in)	66 of 100 (Major)
Glenorchy (Glenorchy Reservoir	Australia	Record daily precipitation	144.0 mm (5.7 in)	65 of 100 (Major)
Kellevie	Australia	Record daily precipitation	88.6 mm (3.5 in)	61 of 100 (Major)
Lunawanna	Australia	Record daily precipitation	64.4 mm (2.5 in)	61 of 100 (Major)
Ouse (Millbrook)	Australia	Record daily precipitation	25.6 mm (1.0 in)	60 of 100 (Major)
Guba	Azerbaijan	Record daily precipitation	99.3 mm (3.9 in)	58 of 100 (Notable)
Scotsburn (Mount Boninyong)	Australia	Record daily precipitation	34.0 mm (1.3 in)	58 of 100 (Notable)
Maria Island (Darlington)	Australia	Record daily precipitation	117.0 mm (4.6 in)	58 of 100 (Notable)
Eaglehawk Neck (Jetty Road)	Australia	Record daily precipitation	85.6 mm (3.4 in)	58 of 100 (Notable)
Wickliffe	Australia	Record daily precipitation	29.6 mm (1.2 in)	57 of 100 (Notable)
Lewis Hill (St Pauls River)	Australia	Record daily precipitation	47.8 mm (1.9 in)	57 of 100 (Notable)
Woodbury (Warringa)	Australia	Record daily precipitation	34.0 mm (1.3 in)	57 of 100 (Notable)
Osterley	Australia	Record daily precipitation	37.8 mm (1.5 in)	57 of 100 (Notable)
Moorabool Reservoir	Australia	Record daily precipitation	38.4 mm (1.5 in)	56 of 100 (Notable)
Barwon Downs	Australia	Record daily precipitation	34.0 mm (1.3 in)	55 of 100 (Notable)
Hobart Airport	Australia	Record daily precipitation	43.8 mm (1.7 in)	54 of 100 (Notable)
Clifton Beach (Clifton Beach R	Australia	Record daily precipitation	85.0 mm (3.3 in)	54 of 100 (Notable)
Tea Tree (the Point)	Australia	Record daily precipitation	67.2 mm (2.6 in)	54 of 100 (Notable)
Avalon Airport	Australia	Record daily precipitation	27.6 mm (1.1 in)	53 of 100 (Notable)
Orielton (East Orielton Road)	Australia	Record daily precipitation	72.0 mm (2.8 in)	53 of 100 (Notable)
York Plains (Handroyd)	Australia	Record daily precipitation	48.8 mm (1.9 in)	52 of 100 (Notable)
Bushy Park (Bushy Park Estates	Australia	Record daily precipitation	46.2 mm (1.8 in)	52 of 100 (Notable)
Tooms Lake (Tooms River)	Australia	Record daily precipitation	44.6 mm (1.8 in)	51 of 100 (Notable)
Stonehouse	Australia	Record daily precipitation	52.0 mm (2.0 in)	50 of 100 (Notable)
Oatlands Post Office	Australia	Record daily precipitation	45.0 mm (1.8 in)	50 of 100 (Notable)
Utsira Fyr	Norway	Record daily precipitation	25.1 mm (1.0 in)	50 of 100 (Notable)
Warrambine No 2	Australia	Record daily precipitation	28.0 mm (1.1 in)	49 of 100 (Notable)
Pennyroyal Creek	Australia	Record daily precipitation	29.4 mm (1.2 in)	49 of 100 (Notable)
Lake Leake (Elizabeth River)	Australia	Record daily precipitation	40.0 mm (1.6 in)	49 of 100 (Notable)
Richmond (Lowlands)	Australia	Record daily precipitation	52.0 mm (2.0 in)	49 of 100 (Notable)
Lymington (Fattys Lane)	Australia	Record daily precipitation	41.4 mm (1.6 in)	49 of 100 (Notable)
Alyeska	United States	Record daily precipitation	83.3 mm (3.3 in)	49 of 100 (Notable)
Great Falls AP	United States	Record daily precipitation	35.6 mm (1.4 in)	49 of 100 (Notable)
Meredith	Australia	Record daily precipitation	36.0 mm (1.4 in)	48 of 100 (Notable)
Gellibrand River West	Australia	Record daily precipitation	33.4 mm (1.3 in)	47 of 100 (Notable)
Coleraine (Melville Forest)	Australia	Record daily precipitation	27.0 mm (1.1 in)	47 of 100 (Notable)
Glen Park (White Swan Reservoi	Australia	Record daily precipitation	36.2 mm (1.4 in)	46 of 100 (Notable)
Apslawn	Australia	Record daily precipitation	40.4 mm (1.6 in)	46 of 100 (Notable)
Cranbrook (Cranbrook House)	Australia	Record daily precipitation	43.4 mm (1.7 in)	46 of 100 (Notable)
Zakatala	Azerbaijan	Record daily precipitation	99.6 mm (3.9 in)	45 of 100 (Notable)
Hamilton Airport	Australia	Record daily precipitation	25.0 mm (1.0 in)	45 of 100 (Notable)
Apsley (Parki)	Australia	Record daily precipitation	45.0 mm (1.8 in)	45 of 100 (Notable)
Dover	Australia	Record daily precipitation	30.0 mm (1.2 in)	45 of 100 (Notable)
Deddington (Marathon)	Australia	Record daily precipitation	29.6 mm (1.2 in)	44 of 100 (Notable)
Lampang	Thailand	Record daily precipitation	76.2 mm (3.0 in)	44 of 100 (Notable)
Coles Bay (Freycinet)	Australia	Record daily precipitation	36.0 mm (1.4 in)	43 of 100 (Notable)

Counts by Type and Timescale

988 records

Records set or tied on 11 May 2018 by type: Highest daily maximum 304, Lowest daily maximum 35, Highest daily minimum 301, Lowest daily minimum 44, Heaviest daily rainfall 304.

Records on 11 May 2018 by type
Record type	Records
Highest daily maximum	304
Lowest daily maximum	35
Highest daily minimum	301
Lowest daily minimum	44
Heaviest daily rainfall	304
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 May 2018 by timescale: all-time 2, monthly 38, daily 948.

How Much Records Were Beaten By

825 broken records

Margins by which the 825 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 108.4. Ties are not counted.

Top 20 by Significance

11 May 2018

Top 20 records on 11 May 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 2018	Sandford (Maydena), AU	monthly rain	127.0 mm (5.0 in)	77.7 mm (3.1 in)	70 years	81 of 100 (Exceptional)
11 May 2018	Bridgewater (Treatment Plant), AU	monthly rain	62.0 mm (2.4 in)	20.6 mm (0.8 in)	60 years	78 of 100 (Major)
11 May 2018	Melton Mowbray (Lovely Banks), AU	daily rain	47.2 mm (1.9 in)	39.1 mm (1.5 in)	95 years	78 of 100 (Major)
11 May 2018	Yatchaw (Amaroo), AU	daily rain	42.0 mm (1.7 in)	22.4 mm (0.9 in)	88 years	76 of 100 (Major)
11 May 2018	Fingal (Legge Street), AU	daily rain	45.4 mm (1.8 in)	32.7 mm (1.3 in)	105 years	75 of 100 (Major)
11 May 2018	Buckland (Brockley), AU	monthly rain	143.0 mm (5.6 in)	46.0 mm (1.8 in)	48 years	74 of 100 (Major)
11 May 2018	Hobart Botanical Gardens, AU	monthly rain	103.2 mm (4.1 in)	53.7 mm (2.1 in)	45 years	73 of 100 (Major)
11 May 2018	Richmond (Brookbank), AU	monthly rain	67.2 mm (2.6 in)	19.7 mm (0.8 in)	62 years	73 of 100 (Major)
11 May 2018	Jericho (Bowsden), AU	monthly rain	97.6 mm (3.8 in)	46.5 mm (1.8 in)	48 years	72 of 100 (Major)
11 May 2018	Fort Direction, AU	monthly rain	107.2 mm (4.2 in)	54.1 mm (2.1 in)	48 years	71 of 100 (Major)
11 May 2018	Bothwell (Franklin Street), AU	monthly rain	54.0 mm (2.1 in)	17.9 mm (0.7 in)	45 years	69 of 100 (Major)
11 May 2018	Taroona (Taroona Crescent), AU	monthly rain	73.0 mm (2.9 in)	22.2 mm (0.9 in)	45 years	68 of 100 (Major)
11 May 2018	Ormley, AU	daily rain	32.0 mm (1.3 in)	21.8 mm (0.9 in)	124 years	66 of 100 (Major)
11 May 2018	Huonville (Tutton Avenue), AU	all-time rain	150.0 mm (5.9 in)	72.0 mm (2.8 in)	4 years	66 of 100 (Major)
11 May 2018	Great Falls 16St, US	daily rain	32.5 mm (1.3 in)	20.8 mm (0.8 in)	104 years	66 of 100 (Major)
11 May 2018	Glenorchy (Glenorchy Reservoir, AU	monthly rain	144.0 mm (5.7 in)	87.0 mm (3.4 in)	31 years	65 of 100 (Major)
11 May 2018	Kellevie, AU	daily rain	88.6 mm (3.5 in)	67.4 mm (2.7 in)	37 years	61 of 100 (Major)
11 May 2018	Lunawanna, AU	daily rain	64.4 mm (2.5 in)	48.8 mm (1.9 in)	39 years	61 of 100 (Major)
11 May 2018	Ouse (Millbrook), AU	daily rain	25.6 mm (1.0 in)	11.6 mm (0.5 in)	95 years	60 of 100 (Major)
11 May 2018	Guba, AZ	monthly rain	99.3 mm (3.9 in)	53.3 mm (2.1 in)	0 years	58 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

1814 to 2018

Records set or tied on this calendar date in each year from 1814 to 2018. 2018 had 988 records.

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

Records on 05-11 in each year
Year	Records
1814	3
1832	1
1836	3
1837	1
1838	1
1848	2
1856	1
1860	2
1865	1
1867	1
1869	1
1872	1
1874	2
1879	2
1880	1
1881	5
1883	3
1884	2
1885	1
1886	2
1887	1
1888	1
1889	2
1892	1
1893	3
1894	2
1895	4
1896	3
1897	6
1898	5
1900	7
1901	9
1902	6
1903	7
1904	6
1905	12
1906	21
1907	44
1908	9
1909	12
1910	16
1911	99
1912	21
1913	20
1914	20
1915	16
1916	22
1917	40
1918	54
1919	56
1920	181
1921	58
1922	61
1923	111
1924	239
1925	410
1926	472
1927	318
1928	252
1929	126
1930	380
1931	254
1932	170
1933	429
1934	332
1935	276
1936	363
1937	170
1938	141
1939	213
1940	340
1941	411
1942	389
1943	646
1944	408
1945	483
1946	747
1947	480
1948	407
1949	451
1950	285
1951	395
1952	629
1953	686
1954	492
1955	235
1956	942
1957	439
1958	499
1959	575
1960	809
1961	663
1962	670
1963	984
1964	299
1965	356
1966	992
1967	974
1968	909
1969	349
1970	764
1971	565
1972	673
1973	429
1974	795
1975	383
1976	509
1977	836
1978	1,070
1979	1,239
1980	693
1981	1,298
1982	624
1983	930
1984	666
1985	835
1986	684
1987	1,247
1988	485
1989	952
1990	935
1991	990
1992	728
1993	1,088
1994	633
1995	1,244
1996	1,088
1997	1,033
1998	1,315
1999	1,052
2000	1,286
2001	848
2002	845
2003	1,321
2004	834
2005	944
2006	822
2007	833
2008	1,015
2009	605
2010	1,292
2011	1,414
2012	1,181
2013	615
2014	662
2015	1,038
2016	497
2017	546
2018	988
2019	915
2020	1,068
2021	590
2022	1,470
2023	390
2024	579
2025	1,104
2026	797

Download the Data

Data for records on 2018-05-11: 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	783
20 to 40	24
40 to 60	11
60 to 80	5
80 to 100	1
100 to 120	1