Weather Records on 4 April 1986

810 weather records were set or tied worldwide on 4 April 1986. Highest significance: Papaikou 144.1, US.

Key Facts for 4 April 1986

On 4 April 1986, 810 weather records were set or tied at long-record stations worldwide.
361 were record highs and 50 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 33 monthly and 775 daily.
Papaikou 144.1 set a monthly record daily precipitation of 332.7 mm (13.1 in) on 4 April 1986.
Across 155 earlier years (1794 to 2026) the same calendar date averaged 502 records.

Record Map

810 stations

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

Weather records on 4 April 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Papaikou 144.1	United States	Record daily precipitation	332.7 mm (13.1 in)	68 of 100 (Major)
Leroy 5 WSW	United States	Record daily precipitation	46.5 mm (1.8 in)	60 of 100 (Major)
Intake Wainiha 1086	United States	Record daily precipitation	177.8 mm (7.0 in)	60 of 100 (Major)
Honohina 137	United States	Record daily precipitation	173.5 mm (6.8 in)	59 of 100 (Notable)
Philip AP	United States	Record daily precipitation	40.6 mm (1.6 in)	59 of 100 (Notable)
Gainesville	United States	Record daily precipitation	93.2 mm (3.7 in)	57 of 100 (Notable)
Harlan	United States	Record daily precipitation	53.1 mm (2.1 in)	56 of 100 (Notable)
Oakland	United States	Record daily precipitation	68.1 mm (2.7 in)	56 of 100 (Notable)
Cottonwood 2 E	United States	Record daily precipitation	44.7 mm (1.8 in)	56 of 100 (Notable)
Muenster	United States	Record daily precipitation	82.8 mm (3.3 in)	54 of 100 (Notable)
Dequeen	United States	Record daily precipitation	166.4 mm (6.6 in)	53 of 100 (Notable)
Forestburg 5 S	United States	Record daily precipitation	76.7 mm (3.0 in)	53 of 100 (Notable)
Arnsberg	Germany	Record daily precipitation	31.3 mm (1.2 in)	52 of 100 (Notable)
Brilon	Germany	Record daily precipitation	34.5 mm (1.4 in)	52 of 100 (Notable)
Quinton	United States	Record daily precipitation	85.6 mm (3.4 in)	52 of 100 (Notable)
Hakalau 142	United States	Record daily precipitation	157.5 mm (6.2 in)	52 of 100 (Notable)
Deniliquin (Wilkinson St)	Australia	Record high minimum temperature	21.2 C (70.2 F)	51 of 100 (Notable)
Spencer 1 N	United States	Record daily precipitation	45.0 mm (1.8 in)	50 of 100 (Notable)
Idabel	United States	Record daily precipitation	89.7 mm (3.5 in)	50 of 100 (Notable)
Troickoe	Russia	Record daily precipitation	25.8 mm (1.0 in)	47 of 100 (Notable)
Durant	United States	Record daily precipitation	119.4 mm (4.7 in)	46 of 100 (Notable)
Boxelder 3 NNE	United States	Record daily precipitation	125.5 mm (4.9 in)	46 of 100 (Notable)
Twistetal-Muhlhausen	Germany	Record daily precipitation	26.1 mm (1.0 in)	44 of 100 (Notable)
Wagoner	United States	Record daily precipitation	46.2 mm (1.8 in)	44 of 100 (Notable)
Hvar	Croatia	Record high minimum temperature	15.2 C (59.4 F)	43 of 100 (Notable)
Hilo Intl AP 87	United States	Record daily precipitation	110.2 mm (4.3 in)	43 of 100 (Notable)
Walgett Council Depot	Australia	Record high maximum temperature	37.2 C (99.0 F)	42 of 100 (Notable)
Forbes (Camp Street)	Australia	Record high maximum temperature	35.7 C (96.3 F)	42 of 100 (Notable)
Halsey 2 W	United States	Record daily precipitation	55.9 mm (2.2 in)	42 of 100 (Notable)
Ardmore 1 NW	United States	Record daily snowfall	17.8 cm (7.0 in)	42 of 100 (Notable)
Valley View	United States	Record daily precipitation	66.0 mm (2.6 in)	42 of 100 (Notable)
Paauhau 217	United States	Record daily precipitation	97.8 mm (3.9 in)	42 of 100 (Notable)
Eastonville 2 NNW	United States	Record daily precipitation	41.9 mm (1.6 in)	41 of 100 (Notable)
Eastonville 2 NNW	United States	Record daily snowfall	40.6 cm (16.0 in)	41 of 100 (Notable)
Dalton	United States	Record daily precipitation	40.6 mm (1.6 in)	41 of 100 (Notable)
Oshkosh	United States	Record daily snowfall	20.3 cm (8.0 in)	41 of 100 (Notable)
Melbourne Regional Office	Australia	Record high minimum temperature	18.0 C (64.4 F)	40 of 100 (Notable)
Carnasaw Twr	United States	Record daily precipitation	89.7 mm (3.5 in)	40 of 100 (Notable)
Jayuya	Puerto Rico [United States]	Record daily precipitation	55.1 mm (2.2 in)	39 of 100 (Notable)
Audubon	United States	Record daily precipitation	26.4 mm (1.0 in)	39 of 100 (Notable)
Harrison	United States	Record daily precipitation	40.4 mm (1.6 in)	39 of 100 (Notable)
Kukuihaele Mill 206	United States	Record daily precipitation	114.0 mm (4.5 in)	39 of 100 (Notable)
Deniliquin (Wilkinson St)	Australia	Record high maximum temperature	37.6 C (99.7 F)	38 of 100 (Notable)
Okay	United States	Record daily precipitation	45.7 mm (1.8 in)	38 of 100 (Notable)
Flagler 1S	United States	Record daily precipitation	40.4 mm (1.6 in)	38 of 100 (Notable)
Fleming	United States	Record daily precipitation	37.1 mm (1.5 in)	38 of 100 (Notable)
Humboldt 3 W	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Hoyt 2SE	United States	Record daily precipitation	43.2 mm (1.7 in)	38 of 100 (Notable)
Eastport	United States	Record high maximum temperature	13.9 C (57.0 F)	38 of 100 (Notable)
Bridgeport	United States	Record daily snowfall	12.7 cm (5.0 in)	38 of 100 (Notable)
Duncan	United States	Record daily precipitation	51.6 mm (2.0 in)	38 of 100 (Notable)
La Grange	United States	Record daily precipitation	36.8 mm (1.4 in)	38 of 100 (Notable)
Mullen 21 NW	United States	Record daily precipitation	34.3 mm (1.4 in)	37 of 100 (Notable)
Ft Ross	United States	Record low minimum temperature	1.1 C (34.0 F)	36 of 100 (Notable)
Bailey	United States	Record daily snowfall	31.8 cm (12.5 in)	36 of 100 (Notable)
Mullen 3S	United States	Record daily precipitation	52.3 mm (2.1 in)	36 of 100 (Notable)
Valentine Nwr	United States	Record daily precipitation	36.6 mm (1.4 in)	36 of 100 (Notable)
Waiakea Scd 88.2	United States	Record daily precipitation	182.9 mm (7.2 in)	36 of 100 (Notable)
Machiques-Granja M.A.C.	Venezuela	Record daily precipitation	69.0 mm (2.7 in)	36 of 100 (Notable)
Gagnoa	Cote D'Ivoire	Record high maximum temperature	39.3 C (102.7 F)	35 of 100 (Notable)

Counts by Type and Timescale

810 records

Records set or tied on 4 April 1986 by type: Highest daily maximum 179, Lowest daily maximum 24, Highest daily minimum 182, Lowest daily minimum 26, Heaviest daily rainfall 326, Heaviest daily snowfall 54, Deepest snow cover 19.

Records on 4 April 1986 by type
Record type	Records
Highest daily maximum	179
Lowest daily maximum	24
Highest daily minimum	182
Lowest daily minimum	26
Heaviest daily rainfall	326
Heaviest daily snowfall	54
Deepest snow cover	19

Records on 4 April 1986 by timescale: all-time 2, monthly 33, daily 775.

How Much Records Were Beaten By

654 broken records

Margins by which the 654 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 304.0. Ties are not counted.

Top 20 by Significance

4 April 1986

Top 20 records on 4 April 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 April 1986	Papaikou 144.1, US	monthly rain	332.7 mm (13.1 in)	92.7 mm (3.6 in)	47 years	68 of 100 (Major)
4 April 1986	Leroy 5 WSW, US	daily rain	46.5 mm (1.8 in)	25.2 mm (1.0 in)	85 years	60 of 100 (Major)
4 April 1986	Intake Wainiha 1086, US	daily rain	177.8 mm (7.0 in)	147.3 mm (5.8 in)	53 years	60 of 100 (Major)
4 April 1986	Honohina 137, US	daily rain	173.5 mm (6.8 in)	102.6 mm (4.0 in)	44 years	59 of 100 (Notable)
4 April 1986	Philip AP, US	daily rain	40.6 mm (1.6 in)	29.4 mm (1.2 in)	39 years	59 of 100 (Notable)
4 April 1986	Gainesville, US	daily rain	93.2 mm (3.7 in)	52.6 mm (2.1 in)	48 years	57 of 100 (Notable)
4 April 1986	Harlan, US	daily rain	53.1 mm (2.1 in)	37.1 mm (1.5 in)	39 years	56 of 100 (Notable)
4 April 1986	Oakland, US	daily rain	68.1 mm (2.7 in)	39.1 mm (1.5 in)	39 years	56 of 100 (Notable)
4 April 1986	Cottonwood 2 E, US	daily rain	44.7 mm (1.8 in)	28.2 mm (1.1 in)	51 years	56 of 100 (Notable)
4 April 1986	Muenster, US	daily rain	82.8 mm (3.3 in)	76.4 mm (3.0 in)	33 years	54 of 100 (Notable)
4 April 1986	Dequeen, US	monthly rain	166.4 mm (6.6 in)	50.8 mm (2.0 in)	29 years	53 of 100 (Notable)
4 April 1986	Forestburg 5 S, US	daily rain	76.7 mm (3.0 in)	65.3 mm (2.6 in)	24 years	53 of 100 (Notable)
4 April 1986	Arnsberg, DE	daily rain	31.3 mm (1.2 in)	9.3 mm (0.37 in)	83 years	52 of 100 (Notable)
4 April 1986	Brilon, DE	daily rain	34.5 mm (1.4 in)	21.2 mm (0.8 in)	32 years	52 of 100 (Notable)
4 April 1986	Quinton, US	daily rain	85.6 mm (3.4 in)	65.8 mm (2.6 in)	33 years	52 of 100 (Notable)
4 April 1986	Hakalau 142, US	daily rain	157.5 mm (6.2 in)	71.6 mm (2.8 in)	49 years	52 of 100 (Notable)
4 April 1986	Deniliquin (Wilkinson St), AU	monthly high min	21.2 C (70.2 F)	0.6 C (1.1 F)	118 years	51 of 100 (Notable)
4 April 1986	Spencer 1 N, US	daily rain	45.0 mm (1.8 in)	20.4 mm (0.8 in)	59 years	50 of 100 (Notable)
4 April 1986	Idabel, US	daily rain	89.7 mm (3.5 in)	49.1 mm (1.9 in)	52 years	50 of 100 (Notable)
4 April 1986	Troickoe, RU	daily rain	25.8 mm (1.0 in)	20.4 mm (0.8 in)	19 years	47 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

1794 to 1986

Records set or tied on this calendar date in each year from 1794 to 1986. 1986 had 810 records.

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

Records on 04-04 in each year
Year	Records
1794	1
1808	1
1809	1
1815	2
1819	1
1853	1
1857	1
1873	1
1874	2
1877	2
1878	1
1879	3
1880	2
1881	3
1882	1
1883	1
1884	1
1885	1
1886	2
1887	1
1888	1
1891	1
1892	6
1893	2
1895	2
1896	3
1897	4
1898	7
1899	4
1900	7
1901	12
1902	2
1903	17
1904	6
1905	23
1906	7
1907	9
1908	20
1909	15
1910	48
1911	55
1912	25
1913	31
1914	13
1915	52
1916	65
1917	36
1918	37
1919	27
1920	89
1921	205
1922	39
1923	101
1924	51
1925	126
1926	206
1927	203
1928	625
1929	1,320
1930	86
1931	201
1932	193
1933	167
1934	656
1935	402
1936	714
1937	344
1938	201
1939	243
1940	392
1941	353
1942	537
1943	456
1944	975
1945	806
1946	459
1947	397
1948	202
1949	458
1950	1,044
1951	352
1952	348
1953	332
1954	742
1955	448
1956	426
1957	984
1958	492
1959	524
1960	756
1961	525
1962	308
1963	586
1964	675
1965	443
1966	469
1967	438
1968	640
1969	424
1970	438
1971	560
1972	695
1973	511
1974	1,356
1975	1,981
1976	353
1977	780
1978	497
1979	984
1980	690
1981	1,393
1982	1,251
1983	1,202
1984	762
1985	865
1986	810
1987	2,317
1988	1,119
1989	668
1990	826
1991	957
1992	1,270
1993	733
1994	726
1995	935
1996	699
1997	1,538
1998	931
1999	1,575
2000	1,371
2001	1,040
2002	989
2003	1,055
2004	782
2005	1,070
2006	911
2007	1,009
2008	860
2009	1,068
2010	758
2011	1,155
2012	830
2013	938
2014	705
2015	452
2016	795
2017	603
2018	1,196
2019	407
2020	914
2021	1,341
2022	1,014
2023	2,058
2024	966
2025	1,330
2026	894

Download the Data

Data for records on 1986-04-04: 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 50	606
50 to 100	28
100 to 150	9
150 to 200	5
200 to 250	5
250 to 300	0
300 to 350	1