Weather Records on 4 May 1986

1,128 weather records were set or tied worldwide on 4 May 1986. Highest significance: Sotchi, RU.

Key Facts for 4 May 1986

On 4 May 1986, 1,128 weather records were set or tied at long-record stations worldwide.
482 were record highs and 377 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 52 monthly and 1,075 daily.
Sotchi set a daily record precipitation of 54.3 mm (2.1 in) on 4 May 1986.
Across 163 earlier years (1795 to 2026) the same calendar date averaged 426 records.

Record Map

1,128 stations

1,128 station records on 4 May 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 May 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sotchi	Russia	Record daily precipitation	54.3 mm (2.1 in)	65 of 100 (Major)
Kalispell Glacier AP	United States	Record daily precipitation	34.0 mm (1.3 in)	65 of 100 (Major)
Bladensburg	Australia	Record daily precipitation	56.0 mm (2.2 in)	64 of 100 (Major)
South Comongin	Australia	Record daily precipitation	48.0 mm (1.9 in)	62 of 100 (Major)
Landsborough Downs	Australia	Record daily precipitation	41.7 mm (1.6 in)	61 of 100 (Major)
Polson	United States	Record daily precipitation	35.1 mm (1.4 in)	60 of 100 (Major)
Strathdarr	Australia	Record daily precipitation	56.0 mm (2.2 in)	59 of 100 (Notable)
Mahrigong	Australia	Record daily precipitation	78.2 mm (3.1 in)	59 of 100 (Notable)
Brighton Downs	Australia	Record daily precipitation	35.1 mm (1.4 in)	57 of 100 (Notable)
Lansdowne Station	Australia	Record daily precipitation	53.2 mm (2.1 in)	56 of 100 (Notable)
Ray Station	Australia	Record daily precipitation	54.0 mm (2.1 in)	53 of 100 (Notable)
Chatsworth	Australia	Record daily precipitation	28.4 mm (1.1 in)	50 of 100 (Notable)
Malboona	Australia	Record daily precipitation	48.0 mm (1.9 in)	49 of 100 (Notable)
Denton	Australia	Record daily precipitation	40.6 mm (1.6 in)	49 of 100 (Notable)
Hillgrove Station	Australia	Record daily precipitation	26.4 mm (1.0 in)	48 of 100 (Notable)
Schwerin	Germany	Record daily precipitation	26.2 mm (1.0 in)	48 of 100 (Notable)
Baratria	Australia	Record daily precipitation	34.0 mm (1.3 in)	47 of 100 (Notable)
Saint Ignatius	United States	Record daily precipitation	35.6 mm (1.4 in)	47 of 100 (Notable)
Bogoroditskoye-Fenino	Russia	Record daily precipitation	54.1 mm (2.1 in)	46 of 100 (Notable)
Melrose	Australia	Record daily precipitation	39.4 mm (1.6 in)	45 of 100 (Notable)
Lewisburg Exp STN	United States	Record low minimum temperature	-1.7 C (28.9 F)	44 of 100 (Notable)
Birricannia	Australia	Record daily precipitation	50.0 mm (2.0 in)	43 of 100 (Notable)
Tangorin	Australia	Record daily precipitation	58.2 mm (2.3 in)	43 of 100 (Notable)
Jefferson 2 E	United States	Record low minimum temperature	-5.6 C (21.9 F)	43 of 100 (Notable)
Vestervig	Denmark	Record high minimum temperature	10.6 C (51.1 F)	42 of 100 (Notable)
Utsira Fyr	Norway	Record high minimum temperature	11.7 C (53.1 F)	42 of 100 (Notable)
Pineview Dam	United States	Record daily precipitation	48.0 mm (1.9 in)	41 of 100 (Notable)
Byfield Childs Road	Australia	Record daily precipitation	100.0 mm (3.9 in)	40 of 100 (Notable)
Uppsala_Aut	Sweden	Record high maximum temperature	22.0 C (71.6 F)	40 of 100 (Notable)
Tabora Airport	Tanzania	Record daily precipitation	33.4 mm (1.3 in)	40 of 100 (Notable)
Ekalaka	United States	Record high minimum temperature	16.7 C (62.1 F)	40 of 100 (Notable)
Ft Meade	United States	Record high minimum temperature	20.0 C (68.0 F)	40 of 100 (Notable)
Balfes Creek Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	39 of 100 (Notable)
Terrick Terrick Stud	Australia	Record daily precipitation	26.5 mm (1.0 in)	39 of 100 (Notable)
Alni	Australia	Record daily precipitation	39.0 mm (1.5 in)	39 of 100 (Notable)
Bigfork 13 S	United States	Record daily precipitation	38.1 mm (1.5 in)	38 of 100 (Notable)
Franklin Sewage Plt	United States	Record low minimum temperature	-1.1 C (30.0 F)	38 of 100 (Notable)
Ayrshire Downs	Australia	Record daily precipitation	41.0 mm (1.6 in)	37 of 100 (Notable)
Paonia 1SW	United States	Record high minimum temperature	13.3 C (55.9 F)	37 of 100 (Notable)
Dutch Harbor	United States	Record low minimum temperature	-4.4 C (24.1 F)	37 of 100 (Notable)
Lerida	Australia	Record daily precipitation	29.2 mm (1.1 in)	36 of 100 (Notable)
Bor	Russia	Record low minimum temperature	-20.3 C (-4.5 F)	36 of 100 (Notable)
De Hoek (Bos)	South Africa	Record daily precipitation	42.0 mm (1.7 in)	36 of 100 (Notable)
Saint Johns	United States	Record low minimum temperature	-9.4 C (15.1 F)	36 of 100 (Notable)
Creston	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
Lexington	United States	Record low minimum temperature	-1.1 C (30.0 F)	36 of 100 (Notable)
Buckhannon	United States	Record low minimum temperature	-4.4 C (24.1 F)	36 of 100 (Notable)
Harden Park	Australia	Record daily precipitation	44.4 mm (1.7 in)	35 of 100 (Notable)
Zomerkomst (Bos)	South Africa	Record daily precipitation	30.5 mm (1.2 in)	35 of 100 (Notable)
Oestersund-Froesoen	Sweden	Record high minimum temperature	8.1 C (46.6 F)	35 of 100 (Notable)
W Glacier	United States	Record daily precipitation	28.4 mm (1.1 in)	35 of 100 (Notable)
Kamennaja-Step	Russia	Record daily precipitation	33.4 mm (1.3 in)	34 of 100 (Routine)
Petersham 3 N	United States	Record daily snowfall	5.1 cm (2.0 in)	34 of 100 (Routine)
Bethlehem	United States	Record low minimum temperature	-6.1 C (21.0 F)	34 of 100 (Routine)
Buffalo	United States	Record high minimum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Sunnyside	Australia	Record daily precipitation	34.0 mm (1.3 in)	33 of 100 (Routine)
Tully Lake	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Skq Dam	United States	Record daily precipitation	36.1 mm (1.4 in)	33 of 100 (Routine)
Marshall	United States	Record low minimum temperature	-2.8 C (27.0 F)	33 of 100 (Routine)
Pineville	United States	Record low minimum temperature	-2.2 C (28.0 F)	33 of 100 (Routine)

Counts by Type and Timescale

1,128 records

Records set or tied on 4 May 1986 by type: Highest daily maximum 241, Lowest daily maximum 96, Highest daily minimum 241, Lowest daily minimum 281, Heaviest daily rainfall 242, Heaviest daily snowfall 24, Deepest snow cover 3.

Records on 4 May 1986 by type
Record type	Records
Highest daily maximum	241
Lowest daily maximum	96
Highest daily minimum	241
Lowest daily minimum	281
Heaviest daily rainfall	242
Heaviest daily snowfall	24
Deepest snow cover	3

Records on 4 May 1986 by timescale: all-time 1, monthly 52, daily 1,075.

How Much Records Were Beaten By

914 broken records

Margins by which the 914 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 78.2. Ties are not counted.

Top 20 by Significance

4 May 1986

Top 20 records on 4 May 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 May 1986	Sotchi, RU	daily rain	54.3 mm (2.1 in)	30.0 mm (1.2 in)	110 years	65 of 100 (Major)
4 May 1986	Kalispell Glacier AP, US	daily rain	34.0 mm (1.3 in)	22.3 mm (0.9 in)	53 years	65 of 100 (Major)
4 May 1986	Bladensburg, AU	daily rain	56.0 mm (2.2 in)	54.0 mm (2.1 in)	65 years	64 of 100 (Major)
4 May 1986	South Comongin, AU	daily rain	48.0 mm (1.9 in)	34.5 mm (1.4 in)	95 years	62 of 100 (Major)
4 May 1986	Landsborough Downs, AU	daily rain	41.7 mm (1.6 in)	41.7 mm (1.6 in)	100 years	61 of 100 (Major)
4 May 1986	Polson, US	daily rain	35.1 mm (1.4 in)	21.1 mm (0.8 in)	72 years	60 of 100 (Major)
4 May 1986	Strathdarr, AU	daily rain	56.0 mm (2.2 in)	54.2 mm (2.1 in)	40 years	59 of 100 (Notable)
4 May 1986	Mahrigong, AU	daily rain	78.2 mm (3.1 in)	78.2 mm (3.1 in)	69 years	59 of 100 (Notable)
4 May 1986	Brighton Downs, AU	daily rain	35.1 mm (1.4 in)	31.5 mm (1.2 in)	69 years	57 of 100 (Notable)
4 May 1986	Lansdowne Station, AU	daily rain	53.2 mm (2.1 in)	39.5 mm (1.6 in)	63 years	56 of 100 (Notable)
4 May 1986	Ray Station, AU	daily rain	54.0 mm (2.1 in)	54.0 mm (2.1 in)	61 years	53 of 100 (Notable)
4 May 1986	Chatsworth, AU	daily rain	28.4 mm (1.1 in)	28.4 mm (1.1 in)	71 years	50 of 100 (Notable)
4 May 1986	Malboona, AU	daily rain	48.0 mm (1.9 in)	36.8 mm (1.4 in)	83 years	49 of 100 (Notable)
4 May 1986	Denton, AU	daily rain	40.6 mm (1.6 in)	40.6 mm (1.6 in)	56 years	49 of 100 (Notable)
4 May 1986	Hillgrove Station, AU	daily rain	26.4 mm (1.0 in)	24.9 mm (1.0 in)	72 years	48 of 100 (Notable)
4 May 1986	Schwerin, DE	daily rain	26.2 mm (1.0 in)	16.6 mm (0.7 in)	33 years	48 of 100 (Notable)
4 May 1986	Baratria, AU	daily rain	34.0 mm (1.3 in)	34.0 mm (1.3 in)	72 years	47 of 100 (Notable)
4 May 1986	Saint Ignatius, US	daily rain	35.6 mm (1.4 in)	14.8 mm (0.6 in)	53 years	47 of 100 (Notable)
4 May 1986	Bogoroditskoye-Fenino, RU	monthly rain	54.1 mm (2.1 in)	1.6 mm (0.06 in)	85 years	46 of 100 (Notable)
4 May 1986	Melrose, AU	daily rain	39.4 mm (1.6 in)	32.0 mm (1.3 in)	49 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

1795 to 1986

Records set or tied on this calendar date in each year from 1795 to 1986. 1986 had 1,128 records.

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

Records on 05-04 in each year
Year	Records
1795	1
1796	1
1820	1
1836	2
1840	1
1847	1
1850	2
1851	2
1852	1
1856	3
1858	1
1859	1
1861	2
1862	1
1864	3
1865	2
1868	3
1869	1
1870	2
1875	1
1877	2
1878	1
1879	1
1880	1
1882	1
1885	1
1886	1
1888	1
1889	4
1890	1
1892	4
1893	3
1894	6
1895	3
1896	3
1897	2
1898	2
1899	2
1900	2
1902	5
1903	8
1904	8
1905	19
1906	5
1907	37
1908	18
1909	13
1910	14
1911	37
1912	12
1913	63
1914	21
1915	75
1916	57
1917	60
1918	30
1919	69
1920	43
1921	62
1922	283
1923	82
1924	88
1925	80
1926	230
1927	112
1928	205
1929	177
1930	269
1931	169
1932	104
1933	274
1934	456
1935	518
1936	313
1937	230
1938	445
1939	295
1940	602
1941	436
1942	820
1943	358
1944	872
1945	654
1946	463
1947	649
1948	578
1949	1,130
1950	953
1951	292
1952	698
1953	389
1954	1,045
1955	471
1956	433
1957	433
1958	414
1959	613
1960	443
1961	466
1962	265
1963	313
1964	570
1965	433
1966	1,113
1967	928
1968	304
1969	377
1970	454
1971	810
1972	364
1973	313
1974	367
1975	683
1976	554
1977	736
1978	1,016
1979	1,529
1980	511
1981	667
1982	591
1983	539
1984	885
1985	821
1986	1,128
1987	1,004
1988	591
1989	743
1990	1,461
1991	1,088
1992	933
1993	791
1994	821
1995	974
1996	1,298
1997	962
1998	898
1999	1,167
2000	1,398
2001	1,345
2002	1,343
2003	1,158
2004	1,341
2005	1,152
2006	650
2007	699
2008	624
2009	727
2010	999
2011	1,023
2012	1,343
2013	1,447
2014	602
2015	622
2016	463
2017	669
2018	972
2019	574
2020	504
2021	616
2022	470
2023	681
2024	885
2025	456
2026	554

Download the Data

Data for records on 1986-05-04: 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	811
10 to 20	58
20 to 30	21
30 to 40	13
40 to 50	2
50 to 60	8
60 to 70	0
70 to 80	1