Weather Records on 1 May 1986

512 weather records were set or tied worldwide on 1 May 1986. Highest significance: Noblesville River, US.

Key Facts for 1 May 1986

On 1 May 1986, 512 weather records were set or tied at long-record stations worldwide.
249 were record highs and 101 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 29 monthly and 482 daily.
Noblesville River set a daily record precipitation of 64.0 mm (2.5 in) on 1 May 1986.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 442 records.

Record Map

512 stations

512 station records on 1 May 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 May 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Noblesville River	United States	Record daily precipitation	64.0 mm (2.5 in)	62 of 100 (Major)
Greencastle 1 W	United States	Record daily precipitation	87.6 mm (3.4 in)	59 of 100 (Notable)
Logansport Cicott St	United States	Record daily precipitation	68.6 mm (2.7 in)	59 of 100 (Notable)
Marion 2 N	United States	Record daily precipitation	62.7 mm (2.5 in)	59 of 100 (Notable)
Lupi Upper 442	United States	Record daily precipitation	284.5 mm (11.2 in)	57 of 100 (Notable)
Bustard Head Lighthouse	Australia	Record daily precipitation	82.6 mm (3.3 in)	50 of 100 (Notable)
Fanning River Station	Australia	Record daily precipitation	86.0 mm (3.4 in)	49 of 100 (Notable)
Mount Kroombit	Australia	Record daily precipitation	106.0 mm (4.2 in)	49 of 100 (Notable)
Minonk	United States	Record daily precipitation	69.9 mm (2.8 in)	49 of 100 (Notable)
Chicontepec de Tejeda (Smn)	Mexico	Record daily precipitation	119.9 mm (4.7 in)	48 of 100 (Notable)
Kentland	United States	Record daily precipitation	79.8 mm (3.1 in)	47 of 100 (Notable)
W Lafayette 6 NW	United States	Record daily precipitation	70.1 mm (2.8 in)	45 of 100 (Notable)
Monticello	United States	Record daily precipitation	61.7 mm (2.4 in)	44 of 100 (Notable)
Whitestown	United States	Record daily precipitation	52.3 mm (2.1 in)	44 of 100 (Notable)
Kokomo 3 WSW	United States	Record daily precipitation	49.3 mm (1.9 in)	42 of 100 (Notable)
Cold Bay AP	United States	Record daily snowfall	6.4 cm (2.5 in)	42 of 100 (Notable)
Dudinka	Russia	Record low minimum temperature	-32.6 C (-26.7 F)	39 of 100 (Notable)
Anderson Wtr Wks	United States	Record daily precipitation	41.9 mm (1.6 in)	39 of 100 (Notable)
Dotswood Station	Australia	Record daily precipitation	79.0 mm (3.1 in)	38 of 100 (Notable)
Emerald Post Office	Australia	Record low maximum temperature	19.9 C (67.8 F)	38 of 100 (Notable)
Pikan	Russia	Record daily precipitation	27.8 mm (1.1 in)	37 of 100 (Notable)
College STN Easterwood Fld	United States	Record daily precipitation	100.8 mm (4.0 in)	37 of 100 (Notable)
Nanning	China	Record daily precipitation	77.3 mm (3.0 in)	36 of 100 (Notable)
Aiken 5SE	United States	Record high maximum temperature	35.0 C (95.0 F)	36 of 100 (Notable)
Cameron	United States	Record daily precipitation	67.6 mm (2.7 in)	36 of 100 (Notable)
Quincy Mem Brg	United States	Record daily precipitation	36.1 mm (1.4 in)	35 of 100 (Notable)
Lewisburg Exp STN	United States	Record high maximum temperature	31.7 C (89.1 F)	35 of 100 (Notable)
Willard 4 SW	United States	Record high maximum temperature	35.6 C (96.1 F)	34 of 100 (Routine)
Angleton 2 W	United States	Record daily precipitation	44.7 mm (1.8 in)	34 of 100 (Routine)
Santa Catarina	Mexico	Record daily precipitation	40.9 mm (1.6 in)	33 of 100 (Routine)
Nyssa	United States	Record low minimum temperature	-4.4 C (24.1 F)	33 of 100 (Routine)
Paakea 350	United States	Record daily precipitation	116.8 mm (4.6 in)	33 of 100 (Routine)
Cidra 1 E	Puerto Rico [United States]	Record daily precipitation	76.2 mm (3.0 in)	32 of 100 (Routine)
Temple	United States	Record daily precipitation	87.4 mm (3.4 in)	32 of 100 (Routine)
Rockville 1 NE	United States	Record high minimum temperature	16.7 C (62.1 F)	31 of 100 (Routine)
Fosston 1 E	United States	Record low maximum temperature	1.7 C (35.1 F)	31 of 100 (Routine)
Muenster	United States	Record daily precipitation	72.4 mm (2.9 in)	31 of 100 (Routine)
Dululu Post Office	Australia	Record daily precipitation	89.0 mm (3.5 in)	30 of 100 (Routine)
Gospic	Croatia	Record high minimum temperature	12.2 C (54.0 F)	30 of 100 (Routine)
Dudinka	Russia	Record low maximum temperature	-19.4 C (-2.9 F)	30 of 100 (Routine)
Kroombit	Australia	Record daily precipitation	101.4 mm (4.0 in)	29 of 100 (Routine)
Propria	Brazil	Record daily precipitation	47.0 mm (1.9 in)	29 of 100 (Routine)
Budapest	Hungary	Record high minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Monroeville 1 NW	United States	Record daily precipitation	36.8 mm (1.4 in)	29 of 100 (Routine)
Wabash	United States	Record daily precipitation	49.5 mm (1.9 in)	29 of 100 (Routine)
Bemerside	Australia	Record daily precipitation	44.4 mm (1.7 in)	28 of 100 (Routine)
Kalapa	Australia	Record daily precipitation	96.2 mm (3.8 in)	28 of 100 (Routine)
Graz	Austria	Record high minimum temperature	14.8 C (58.6 F)	28 of 100 (Routine)
Tolka	Russia	Record low minimum temperature	-29.6 C (-21.3 F)	28 of 100 (Routine)
Uttaradit	Thailand	Record daily precipitation	91.9 mm (3.6 in)	28 of 100 (Routine)
Hartford City 4 ESE	United States	Record daily precipitation	56.4 mm (2.2 in)	28 of 100 (Routine)
Bolivar 1 NE	United States	Record daily precipitation	63.5 mm (2.5 in)	28 of 100 (Routine)
Malakoff	Australia	Record daily precipitation	59.0 mm (2.3 in)	27 of 100 (Routine)
Valentia Observatory	Ireland	Record daily precipitation	25.3 mm (1.0 in)	27 of 100 (Routine)
Puerto Real	Puerto Rico [United States]	Record daily precipitation	49.3 mm (1.9 in)	27 of 100 (Routine)
Igarka	Russia	Record low minimum temperature	-29.1 C (-20.4 F)	27 of 100 (Routine)
Ra-Iz	Russia	Record low maximum temperature	-21.3 C (-6.3 F)	27 of 100 (Routine)
Lundazi	Zambia	Record daily precipitation	27.2 mm (1.1 in)	27 of 100 (Routine)
Cape Cleveland Lighthouse	Australia	Record daily precipitation	62.0 mm (2.4 in)	26 of 100 (Routine)
Bibaringa	Australia	Record daily precipitation	47.0 mm (1.9 in)	26 of 100 (Routine)

Counts by Type and Timescale

512 records

Records set or tied on 1 May 1986 by type: Highest daily maximum 141, Lowest daily maximum 40, Highest daily minimum 108, Lowest daily minimum 61, Heaviest daily rainfall 161, Heaviest daily snowfall 1.

Records on 1 May 1986 by type
Record type	Records
Highest daily maximum	141
Lowest daily maximum	40
Highest daily minimum	108
Lowest daily minimum	61
Heaviest daily rainfall	161
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 1 May 1986 by timescale: all-time 1, monthly 29, daily 482.

How Much Records Were Beaten By

390 broken records

Margins by which the 390 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 109.0. Ties are not counted.

Top 20 by Significance

1 May 1986

Top 20 records on 1 May 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 1986	Noblesville River, US	daily rain	64.0 mm (2.5 in)	47.2 mm (1.9 in)	52 years	62 of 100 (Major)
1 May 1986	Greencastle 1 W, US	daily rain	87.6 mm (3.4 in)	46.2 mm (1.8 in)	45 years	59 of 100 (Notable)
1 May 1986	Logansport Cicott St, US	daily rain	68.6 mm (2.7 in)	41.9 mm (1.6 in)	45 years	59 of 100 (Notable)
1 May 1986	Marion 2 N, US	daily rain	62.7 mm (2.5 in)	23.3 mm (0.9 in)	92 years	59 of 100 (Notable)
1 May 1986	Lupi Upper 442, US	daily rain	284.5 mm (11.2 in)	109.0 mm (4.3 in)	53 years	57 of 100 (Notable)
1 May 1986	Bustard Head Lighthouse, AU	daily rain	82.6 mm (3.3 in)	49.3 mm (1.9 in)	29 years	50 of 100 (Notable)
1 May 1986	Fanning River Station, AU	daily rain	86.0 mm (3.4 in)	72.8 mm (2.9 in)	3 years	49 of 100 (Notable)
1 May 1986	Mount Kroombit, AU	monthly rain	106.0 mm (4.2 in)	47.1 mm (1.9 in)	2 years	49 of 100 (Notable)
1 May 1986	Minonk, US	daily rain	69.9 mm (2.8 in)	28.8 mm (1.1 in)	49 years	49 of 100 (Notable)
1 May 1986	Chicontepec de Tejeda (Smn), MX	daily rain	119.9 mm (4.7 in)	105.7 mm (4.2 in)	24 years	48 of 100 (Notable)
1 May 1986	Kentland, US	daily rain	79.8 mm (3.1 in)	35.3 mm (1.4 in)	45 years	47 of 100 (Notable)
1 May 1986	W Lafayette 6 NW, US	daily rain	70.1 mm (2.8 in)	26.4 mm (1.0 in)	49 years	45 of 100 (Notable)
1 May 1986	Monticello, US	daily rain	61.7 mm (2.4 in)	27.4 mm (1.1 in)	45 years	44 of 100 (Notable)
1 May 1986	Whitestown, US	daily rain	52.3 mm (2.1 in)	18.5 mm (0.7 in)	68 years	44 of 100 (Notable)
1 May 1986	Kokomo 3 WSW, US	daily rain	49.3 mm (1.9 in)	18.1 mm (0.7 in)	67 years	42 of 100 (Notable)
1 May 1986	Cold Bay AP, US	daily snowfall	6.4 cm (2.5 in)	4.1 cm (1.6 in)	29 years	42 of 100 (Notable)
1 May 1986	Dudinka, RU	monthly low min	-32.6 C (-26.7 F)	0.8 C (1.4 F)	67 years	39 of 100 (Notable)
1 May 1986	Anderson Wtr Wks, US	daily rain	41.9 mm (1.6 in)	17.8 mm (0.7 in)	52 years	39 of 100 (Notable)
1 May 1986	Dotswood Station, AU	monthly rain	79.0 mm (3.1 in)	15.5 mm (0.6 in)	29 years	38 of 100 (Notable)
1 May 1986	Emerald Post Office, AU	daily low max	19.9 C (67.8 F)	1.3 C (2.3 F)	84 years	38 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

1795 to 1986

Records set or tied on this calendar date in each year from 1795 to 1986. 1986 had 512 records.

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

Records on 05-01 in each year
Year	Records
1795	1
1802	1
1804	1
1814	1
1818	1
1835	1
1836	1
1840	1
1846	2
1847	1
1850	1
1851	1
1857	1
1860	1
1861	1
1864	2
1865	1
1868	2
1872	1
1875	4
1878	2
1879	2
1880	3
1881	2
1884	1
1885	1
1886	2
1887	2
1888	2
1889	3
1890	2
1891	5
1892	6
1893	2
1894	5
1896	1
1897	4
1898	1
1899	8
1900	1
1901	5
1902	7
1903	9
1904	9
1905	13
1906	12
1907	31
1908	20
1909	49
1910	13
1911	22
1912	18
1913	54
1914	23
1915	27
1916	27
1917	37
1918	34
1919	150
1920	186
1921	41
1922	92
1923	64
1924	63
1925	118
1926	500
1927	125
1928	190
1929	142
1930	263
1931	537
1932	220
1933	706
1934	305
1935	276
1936	368
1937	218
1938	304
1939	227
1940	731
1941	333
1942	1,036
1943	526
1944	229
1945	350
1946	415
1947	655
1948	774
1949	405
1950	439
1951	894
1952	557
1953	917
1954	1,506
1955	772
1956	1,106
1957	359
1958	448
1959	764
1960	737
1961	588
1962	615
1963	704
1964	312
1965	360
1966	707
1967	948
1968	426
1969	429
1970	1,075
1971	444
1972	562
1973	841
1974	589
1975	286
1976	673
1977	545
1978	1,202
1979	612
1980	507
1981	1,265
1982	508
1983	1,423
1984	640
1985	789
1986	512
1987	1,098
1988	1,058
1989	949
1990	922
1991	633
1992	1,201
1993	1,101
1994	1,210
1995	1,365
1996	1,439
1997	804
1998	951
1999	932
2000	809
2001	1,106
2002	1,221
2003	964
2004	887
2005	1,320
2006	734
2007	857
2008	979
2009	679
2010	1,151
2011	716
2012	796
2013	976
2014	941
2015	550
2016	844
2017	1,163
2018	519
2019	788
2020	1,099
2021	834
2022	319
2023	912
2024	458
2025	430
2026	623

Download the Data

Data for records on 1986-05-01: 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	350
20 to 40	26
40 to 60	11
60 to 80	1
80 to 100	0
100 to 120	2