Weather Records on 11 May 1986

684 weather records were set or tied worldwide on 11 May 1986. Highest significance: Coffeeville, US.

Key Facts for 11 May 1986

On 11 May 1986, 684 weather records were set or tied at long-record stations worldwide.
153 were record highs and 178 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 8 monthly and 675 daily.
Coffeeville set a daily record precipitation of 111.0 mm (4.4 in) on 11 May 1986.
Across 156 earlier years (1814 to 2026) the same calendar date averaged 462 records.

Record Map

684 stations

684 station records on 11 May 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 May 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Coffeeville	United States	Record daily precipitation	111.0 mm (4.4 in)	59 of 100 (Notable)
Tilden 4 SSE	United States	Record daily precipitation	97.8 mm (3.9 in)	56 of 100 (Notable)
Warra Post Office	Australia	Record daily precipitation	43.0 mm (1.7 in)	54 of 100 (Notable)
Biboohra	Australia	Record daily precipitation	30.4 mm (1.2 in)	53 of 100 (Notable)
Koah	Australia	Record daily precipitation	34.4 mm (1.4 in)	53 of 100 (Notable)
Lajas Substn	Puerto Rico [United States]	Record daily precipitation	127.0 mm (5.0 in)	52 of 100 (Notable)
Juquitiba	Brazil	Record daily precipitation	57.3 mm (2.3 in)	50 of 100 (Notable)
Doctors Creek	Australia	Record daily precipitation	42.6 mm (1.7 in)	49 of 100 (Notable)
Maroochydore Swan Bowls Club	Australia	Record daily precipitation	105.0 mm (4.1 in)	46 of 100 (Notable)
Elgin Vale Forestry	Australia	Record daily precipitation	63.4 mm (2.5 in)	45 of 100 (Notable)
Ft Assiniboine	United States	Record daily precipitation	37.8 mm (1.5 in)	45 of 100 (Notable)
Cooran Post Office	Australia	Record daily precipitation	39.0 mm (1.5 in)	44 of 100 (Notable)
Salisbury Bowls Club	Australia	Record daily precipitation	58.0 mm (2.3 in)	43 of 100 (Notable)
Moorhead	United States	Record daily precipitation	79.0 mm (3.1 in)	43 of 100 (Notable)
Grand Forks Intl AP	United States	Record daily precipitation	33.5 mm (1.3 in)	42 of 100 (Notable)
Kilkivan Post Office	Australia	Record daily precipitation	25.4 mm (1.0 in)	41 of 100 (Notable)
Elatma	Russia	Record low minimum temperature	-5.1 C (22.8 F)	41 of 100 (Notable)
Lattakia	Syria	Record daily precipitation	39.0 mm (1.5 in)	41 of 100 (Notable)
P-Ranch South Place	United States	Record daily snowfall	12.2 cm (4.8 in)	41 of 100 (Notable)
Stillwater 1 SE	United States	Record daily precipitation	35.6 mm (1.4 in)	40 of 100 (Notable)
Collins	United States	Record daily precipitation	77.2 mm (3.0 in)	40 of 100 (Notable)
Snake Rvr	United States	Record daily snowfall	10.2 cm (4.0 in)	40 of 100 (Notable)
Margate Collins St	Australia	Record daily precipitation	28.6 mm (1.1 in)	39 of 100 (Notable)
Emu Creek	Australia	Record daily precipitation	45.0 mm (1.8 in)	38 of 100 (Notable)
Ogmore Post Office	Australia	Record daily precipitation	59.2 mm (2.3 in)	37 of 100 (Notable)
Norton 9SSE	United States	Record daily precipitation	32.3 mm (1.3 in)	37 of 100 (Notable)
Sunnybank Bowls Club	Australia	Record daily precipitation	61.8 mm (2.4 in)	36 of 100 (Notable)
Woolners Arm	Australia	Record daily precipitation	26.5 mm (1.0 in)	36 of 100 (Notable)
Nitta Yuma	United States	Record daily precipitation	53.3 mm (2.1 in)	36 of 100 (Notable)
Ofahoma	United States	Record daily precipitation	58.4 mm (2.3 in)	36 of 100 (Notable)
Duckinwilla Creek	Australia	Record daily precipitation	76.2 mm (3.0 in)	35 of 100 (Notable)
Indooroopilly Bowls Club	Australia	Record daily precipitation	47.6 mm (1.9 in)	35 of 100 (Notable)
Talon	Russia	Record daily precipitation	51.7 mm (2.0 in)	35 of 100 (Notable)
Pogranichnyj	Russia	Record low minimum temperature	-0.4 C (31.3 F)	35 of 100 (Notable)
Semjachik	Russia	Record daily precipitation	38.2 mm (1.5 in)	35 of 100 (Notable)
Laidley Post Office	Australia	Record daily precipitation	41.8 mm (1.6 in)	34 of 100 (Routine)
Wondai Post Office	Australia	Record daily precipitation	39.2 mm (1.5 in)	34 of 100 (Routine)
Sao Paulo (Aeroport	Brazil	Record daily precipitation	29.7 mm (1.2 in)	34 of 100 (Routine)
Katrineholm_D	Sweden	Record daily precipitation	25.5 mm (1.0 in)	34 of 100 (Routine)
Stoneville Exp STN	United States	Record daily precipitation	43.4 mm (1.7 in)	34 of 100 (Routine)
Pawhuska	United States	Record daily precipitation	49.0 mm (1.9 in)	34 of 100 (Routine)
Selmer	United States	Record daily precipitation	43.7 mm (1.7 in)	34 of 100 (Routine)
Three Rivers	United States	Record daily precipitation	80.0 mm (3.1 in)	34 of 100 (Routine)
Gatton Allan Street	Australia	Record daily precipitation	30.0 mm (1.2 in)	33 of 100 (Routine)
Acland Post Office	Australia	Record daily precipitation	29.0 mm (1.1 in)	33 of 100 (Routine)
Casino Airport	Australia	Record daily precipitation	47.0 mm (1.9 in)	33 of 100 (Routine)
Ashton 1N	United States	Record low maximum temperature	6.7 C (44.1 F)	33 of 100 (Routine)
Dodson 1 WNW	United States	Record daily precipitation	30.7 mm (1.2 in)	33 of 100 (Routine)
Traveston	Australia	Record daily precipitation	41.2 mm (1.6 in)	32 of 100 (Routine)
Tewantin Post Office	Australia	Record daily precipitation	59.0 mm (2.3 in)	32 of 100 (Routine)
Nimbin Post Office	Australia	Record daily precipitation	42.0 mm (1.7 in)	32 of 100 (Routine)
Tamandua	Brazil	Record daily precipitation	35.4 mm (1.4 in)	32 of 100 (Routine)
Lebanon	United States	Record high maximum temperature	32.2 C (90.0 F)	32 of 100 (Routine)
Tashkent	Uzbekistan	Record high maximum temperature	34.5 C (94.1 F)	32 of 100 (Routine)
Waseca S Rsch & Outreach Ctr	United States	Record daily precipitation	35.1 mm (1.4 in)	31 of 100 (Routine)
Water Valley	United States	Record daily precipitation	47.0 mm (1.9 in)	31 of 100 (Routine)
Naalehu 14	United States	Record high minimum temperature	22.2 C (72.0 F)	31 of 100 (Routine)
Mounefontein	Australia	Record daily precipitation	51.0 mm (2.0 in)	30 of 100 (Routine)
Enoggera Reservoir	Australia	Record daily precipitation	45.0 mm (1.8 in)	30 of 100 (Routine)
Mogoca	Russia	Record low minimum temperature	-12.1 C (10.2 F)	30 of 100 (Routine)

Counts by Type and Timescale

684 records

Records set or tied on 11 May 1986 by type: Highest daily maximum 67, Lowest daily maximum 96, Highest daily minimum 86, Lowest daily minimum 82, Heaviest daily rainfall 337, Heaviest daily snowfall 14, Deepest snow cover 2.

Records on 11 May 1986 by type
Record type	Records
Highest daily maximum	67
Lowest daily maximum	96
Highest daily minimum	86
Lowest daily minimum	82
Heaviest daily rainfall	337
Heaviest daily snowfall	14
Deepest snow cover	2

Records on 11 May 1986 by timescale: all-time 1, monthly 8, daily 675.

How Much Records Were Beaten By

553 broken records

Margins by which the 553 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 114.3. Ties are not counted.

Top 20 by Significance

11 May 1986

Top 20 records on 11 May 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 1986	Coffeeville, US	daily rain	111.0 mm (4.4 in)	85.9 mm (3.4 in)	40 years	59 of 100 (Notable)
11 May 1986	Tilden 4 SSE, US	monthly rain	97.8 mm (3.9 in)	22.6 mm (0.9 in)	80 years	56 of 100 (Notable)
11 May 1986	Warra Post Office, AU	daily rain	43.0 mm (1.7 in)	24.5 mm (1.0 in)	88 years	54 of 100 (Notable)
11 May 1986	Biboohra, AU	daily rain	30.4 mm (1.2 in)	24.6 mm (1.0 in)	33 years	53 of 100 (Notable)
11 May 1986	Koah, AU	daily rain	34.4 mm (1.4 in)	25.8 mm (1.0 in)	29 years	53 of 100 (Notable)
11 May 1986	Lajas Substn, PR	daily rain	127.0 mm (5.0 in)	114.3 mm (4.5 in)	16 years	52 of 100 (Notable)
11 May 1986	Juquitiba, BR	daily rain	57.3 mm (2.3 in)	36.5 mm (1.4 in)	20 years	50 of 100 (Notable)
11 May 1986	Doctors Creek, AU	daily rain	42.6 mm (1.7 in)	19.5 mm (0.8 in)	75 years	49 of 100 (Notable)
11 May 1986	Maroochydore Swan Bowls Club, AU	daily rain	105.0 mm (4.1 in)	62.8 mm (2.5 in)	31 years	46 of 100 (Notable)
11 May 1986	Elgin Vale Forestry, AU	daily rain	63.4 mm (2.5 in)	46.0 mm (1.8 in)	8 years	45 of 100 (Notable)
11 May 1986	Ft Assiniboine, US	daily rain	37.8 mm (1.5 in)	26.1 mm (1.0 in)	8 years	45 of 100 (Notable)
11 May 1986	Cooran Post Office, AU	daily rain	39.0 mm (1.5 in)	23.8 mm (0.9 in)	72 years	44 of 100 (Notable)
11 May 1986	Salisbury Bowls Club, AU	daily rain	58.0 mm (2.3 in)	31.8 mm (1.3 in)	56 years	43 of 100 (Notable)
11 May 1986	Moorhead, US	daily rain	79.0 mm (3.1 in)	29.5 mm (1.2 in)	60 years	43 of 100 (Notable)
11 May 1986	Grand Forks Intl AP, US	daily rain	33.5 mm (1.3 in)	19.3 mm (0.8 in)	29 years	42 of 100 (Notable)
11 May 1986	Kilkivan Post Office, AU	daily rain	25.4 mm (1.0 in)	14.0 mm (0.6 in)	72 years	41 of 100 (Notable)
11 May 1986	Elatma, RU	monthly low min	-5.1 C (22.8 F)	0.6 C (1.1 F)	73 years	41 of 100 (Notable)
11 May 1986	Lattakia, SY	daily rain	39.0 mm (1.5 in)	23.0 mm (0.9 in)	48 years	41 of 100 (Notable)
11 May 1986	P-Ranch South Place, US	monthly snowfall	12.2 cm (4.8 in)	4.6 cm (1.8 in)	44 years	41 of 100 (Notable)
11 May 1986	Stillwater 1 SE, US	daily rain	35.6 mm (1.4 in)	24.7 mm (1.0 in)	29 years	40 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 1986

Records set or tied on this calendar date in each year from 1814 to 1986. 1986 had 684 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 1986-05-11: 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	483
20 to 40	61
40 to 60	5
60 to 80	1
80 to 100	1
100 to 120	2