Weather Records on 20 July 1986

848 weather records were set or tied worldwide on 20 July 1986. Highest significance: Rocky Ford 2 SE, US.

Key Facts for 20 July 1986

On 20 July 1986, 848 weather records were set or tied at long-record stations worldwide.
434 were record highs and 295 were record lows, counting maximum and minimum temperature.
By timescale, 21 were all-time records, 25 monthly and 802 daily.
Rocky Ford 2 SE set a daily record precipitation of 83.1 mm (3.3 in) on 20 July 1986.
Across 161 earlier years (1809 to 2026) the same calendar date averaged 457 records.

Record Map

848 stations

848 station records on 20 July 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 July 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Rocky Ford 2 SE	United States	Record daily precipitation	83.1 mm (3.3 in)	63 of 100 (Major)
Ft Supply 3SE	United States	Record daily precipitation	125.5 mm (4.9 in)	61 of 100 (Major)
Najahan	Russia	Record daily precipitation	44.1 mm (1.7 in)	54 of 100 (Notable)
Antioch	United States	Record high minimum temperature	27.2 C (81.0 F)	52 of 100 (Notable)
Fruitland	United States	Record daily precipitation	39.9 mm (1.6 in)	52 of 100 (Notable)
Flagstaff AP	United States	Record daily precipitation	40.4 mm (1.6 in)	52 of 100 (Notable)
Arad	Romania	Record daily precipitation	35.5 mm (1.4 in)	49 of 100 (Notable)
Waycross 4 NE	United States	Record high maximum temperature	41.7 C (107.1 F)	49 of 100 (Notable)
Georgetown 2 E	United States	Record high minimum temperature	28.3 C (82.9 F)	46 of 100 (Notable)
Kingstree	United States	Record high maximum temperature	42.2 C (108.0 F)	46 of 100 (Notable)
Trinidad AP	United States	Record daily precipitation	38.6 mm (1.5 in)	46 of 100 (Notable)
Thomasville 7 NE	United States	Record high minimum temperature	25.6 C (78.1 F)	44 of 100 (Notable)
Ferrara	Italy	Record daily precipitation	25.6 mm (1.0 in)	43 of 100 (Notable)
Velmo	Russia	Record daily precipitation	31.7 mm (1.2 in)	42 of 100 (Notable)
Muenster	Germany	Record low minimum temperature	6.2 C (43.2 F)	41 of 100 (Notable)
Hay Springs	United States	Record daily precipitation	71.1 mm (2.8 in)	41 of 100 (Notable)
Forsyth 6 NNW	United States	Record high maximum temperature	40.0 C (104.0 F)	40 of 100 (Notable)
Glennville 3NW	United States	Record high minimum temperature	26.7 C (80.1 F)	40 of 100 (Notable)
Southport 5 N	United States	Record high minimum temperature	28.3 C (82.9 F)	40 of 100 (Notable)
Karlshamn	Sweden	Record low minimum temperature	5.5 C (41.9 F)	39 of 100 (Notable)
Crested Butte	United States	Record low maximum temperature	12.8 C (55.0 F)	39 of 100 (Notable)
Americus	United States	Record high maximum temperature	39.4 C (102.9 F)	39 of 100 (Notable)
Gouverneur 3 NW	United States	Record daily precipitation	33.8 mm (1.3 in)	39 of 100 (Notable)
Stewart Mtn Dam	United States	Record daily precipitation	35.8 mm (1.4 in)	38 of 100 (Notable)
Blanca 4 NW	United States	Record low maximum temperature	17.2 C (63.0 F)	38 of 100 (Notable)
Manassa	United States	Record low maximum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Monticello	United States	Record high minimum temperature	25.0 C (77.0 F)	38 of 100 (Notable)
Bloomfield 3 SE	United States	Record low maximum temperature	25.6 C (78.1 F)	38 of 100 (Notable)
Zagreb-Gric	Croatia	Record low maximum temperature	18.6 C (65.5 F)	37 of 100 (Notable)
Kit Carson	United States	Record daily precipitation	64.0 mm (2.5 in)	37 of 100 (Notable)
Waycross 4 NE	United States	Record high minimum temperature	25.0 C (77.0 F)	37 of 100 (Notable)
Lake City	United States	Record low maximum temperature	17.8 C (64.0 F)	36 of 100 (Notable)
Bishopville 1.4 ENE	United States	Record high minimum temperature	26.7 C (80.1 F)	35 of 100 (Notable)
Georgetown 2 E	United States	Record high maximum temperature	40.0 C (104.0 F)	35 of 100 (Notable)
Savannah Intl AP	United States	Record high maximum temperature	40.6 C (105.1 F)	35 of 100 (Notable)
Boxian	China	Record daily precipitation	91.1 mm (3.6 in)	34 of 100 (Routine)
Hvar	Croatia	Record low maximum temperature	23.6 C (74.5 F)	34 of 100 (Routine)
Gaddede	Sweden	Record low minimum temperature	-0.4 C (31.3 F)	34 of 100 (Routine)
Blakely	United States	Record high maximum temperature	38.3 C (100.9 F)	34 of 100 (Routine)
Belfast	United States	Record low maximum temperature	20.6 C (69.1 F)	34 of 100 (Routine)
Southport 5 N	United States	Record high maximum temperature	38.9 C (102.0 F)	34 of 100 (Routine)
Hawkinsville	United States	Record high minimum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Espanola	United States	Record low maximum temperature	23.9 C (75.0 F)	33 of 100 (Routine)
Stuttgart-Stadt	Germany	Record low minimum temperature	7.6 C (45.7 F)	32 of 100 (Routine)
Keams Canyon	United States	Record low maximum temperature	23.9 C (75.0 F)	32 of 100 (Routine)
Lake City 2 E	United States	Record high maximum temperature	37.8 C (100.0 F)	32 of 100 (Routine)
Milledgeville	United States	Record high maximum temperature	42.2 C (108.0 F)	32 of 100 (Routine)
Big Delta AP	United States	Record daily precipitation	26.9 mm (1.1 in)	32 of 100 (Routine)
Dos Bocas	Puerto Rico [United States]	Record low maximum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Ft Ross	United States	Record low minimum temperature	3.9 C (39.0 F)	31 of 100 (Routine)
Merced	United States	Record low minimum temperature	8.3 C (46.9 F)	31 of 100 (Routine)
Westcliffe	United States	Record low maximum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Boyds 2 NW	United States	Record daily precipitation	65.5 mm (2.6 in)	31 of 100 (Routine)
Union City	United States	Record high minimum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Miahuatlan (Dge)	Mexico	Record high maximum temperature	33.9 C (93.0 F)	30 of 100 (Routine)
Orogrande	United States	Record low minimum temperature	14.4 C (57.9 F)	30 of 100 (Routine)
Clemson UNIV	United States	Record high maximum temperature	40.0 C (104.0 F)	30 of 100 (Routine)
Winnsboro	United States	Record high maximum temperature	40.0 C (104.0 F)	30 of 100 (Routine)
Troy	United States	Record high minimum temperature	23.9 C (75.0 F)	29 of 100 (Routine)
Madison	United States	Record high maximum temperature	38.9 C (102.0 F)	29 of 100 (Routine)

Counts by Type and Timescale

848 records

Records set or tied on 20 July 1986 by type: Highest daily maximum 220, Lowest daily maximum 81, Highest daily minimum 214, Lowest daily minimum 214, Heaviest daily rainfall 119.

Records on 20 July 1986 by type
Record type	Records
Highest daily maximum	220
Lowest daily maximum	81
Highest daily minimum	214
Lowest daily minimum	214
Heaviest daily rainfall	119
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 20 July 1986 by timescale: all-time 21, monthly 25, daily 802.

How Much Records Were Beaten By

581 broken records

Margins by which the 581 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 63.1. Ties are not counted.

Top 20 by Significance

20 July 1986

Top 20 records on 20 July 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 July 1986	Rocky Ford 2 SE, US	daily rain	83.1 mm (3.3 in)	56.9 mm (2.2 in)	49 years	63 of 100 (Major)
20 July 1986	Ft Supply 3SE, US	monthly rain	125.5 mm (4.9 in)	45.5 mm (1.8 in)	35 years	61 of 100 (Major)
20 July 1986	Najahan, RU	daily rain	44.1 mm (1.7 in)	26.8 mm (1.1 in)	24 years	54 of 100 (Notable)
20 July 1986	Antioch, US	all-time high min	27.2 C (81.0 F)	0.5 C (0.9 F)	78 years	52 of 100 (Notable)
20 July 1986	Fruitland, US	daily rain	39.9 mm (1.6 in)	19.6 mm (0.8 in)	41 years	52 of 100 (Notable)
20 July 1986	Flagstaff AP, US	daily rain	40.4 mm (1.6 in)	25.9 mm (1.0 in)	27 years	52 of 100 (Notable)
20 July 1986	Arad, RO	daily rain	35.5 mm (1.4 in)	7.9 mm (0.31 in)	101 years	49 of 100 (Notable)
20 July 1986	Waycross 4 NE, US	all-time high max	41.7 C (107.1 F)	0.6 C (1.1 F)	61 years	49 of 100 (Notable)
20 July 1986	Georgetown 2 E, US	daily high min	28.3 C (82.9 F)	2.2 C (4.0 F)	87 years	46 of 100 (Notable)
20 July 1986	Kingstree, US	all-time high max	42.2 C (108.0 F)	0.5 C (0.9 F)	53 years	46 of 100 (Notable)
20 July 1986	Trinidad AP, US	daily rain	38.6 mm (1.5 in)	29.5 mm (1.2 in)	36 years	46 of 100 (Notable)
20 July 1986	Thomasville 7 NE, US	daily high min	25.6 C (78.1 F)	1.7 C (3.1 F)	83 years	44 of 100 (Notable)
20 July 1986	Ferrara, IT	daily rain	25.6 mm (1.0 in)	12.7 mm (0.5 in)	76 years	43 of 100 (Notable)
20 July 1986	Velmo, RU	daily rain	31.7 mm (1.2 in)	14.2 mm (0.6 in)	40 years	42 of 100 (Notable)
20 July 1986	Muenster, DE	daily low min	6.2 C (43.2 F)	1.8 C (3.2 F)	87 years	41 of 100 (Notable)
20 July 1986	Hay Springs, US	daily rain	71.1 mm (2.8 in)	24.9 mm (1.0 in)	32 years	41 of 100 (Notable)
20 July 1986	Forsyth 6 NNW, US	daily high max	40.0 C (104.0 F)	2.2 C (4.0 F)	79 years	40 of 100 (Notable)
20 July 1986	Glennville 3NW, US	daily high min	26.7 C (80.1 F)	1.7 C (3.1 F)	72 years	40 of 100 (Notable)
20 July 1986	Southport 5 N, US	daily high min	28.3 C (82.9 F)	1.6 C (2.9 F)	84 years	40 of 100 (Notable)
20 July 1986	Karlshamn, SE	daily low min	5.5 C (41.9 F)	0.5 C (0.9 F)	93 years	39 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

1809 to 1986

Records set or tied on this calendar date in each year from 1809 to 1986. 1986 had 848 records.

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

Records on 07-20 in each year
Year	Records
1809	1
1810	1
1811	2
1832	2
1844	2
1850	1
1859	2
1863	1
1865	4
1866	1
1867	1
1868	1
1870	1
1872	1
1874	2
1876	1
1877	2
1879	3
1880	1
1881	2
1882	1
1883	2
1885	1
1886	2
1887	1
1888	1
1889	2
1890	5
1892	7
1893	1
1894	1
1895	1
1897	4
1898	2
1899	4
1900	9
1901	3
1902	13
1903	6
1904	10
1905	6
1906	8
1907	12
1908	31
1909	6
1910	27
1911	12
1912	33
1913	28
1914	20
1915	163
1916	117
1917	57
1918	53
1919	40
1920	16
1921	55
1922	52
1923	173
1924	112
1925	125
1926	411
1927	106
1928	366
1929	480
1930	598
1931	362
1932	338
1933	201
1934	857
1935	386
1936	358
1937	213
1938	392
1939	336
1940	325
1941	270
1942	609
1943	326
1944	470
1945	278
1946	482
1947	635
1948	385
1949	807
1950	563
1951	448
1952	488
1953	316
1954	512
1955	377
1956	545
1957	351
1958	536
1959	605
1960	758
1961	338
1962	327
1963	457
1964	416
1965	1,110
1966	469
1967	455
1968	389
1969	649
1970	890
1971	619
1972	1,062
1973	804
1974	489
1975	470
1976	580
1977	899
1978	663
1979	1,249
1980	925
1981	1,048
1982	580
1983	1,117
1984	799
1985	604
1986	848
1987	1,156
1988	1,103
1989	1,183
1990	724
1991	1,024
1992	1,137
1993	901
1994	611
1995	961
1996	1,365
1997	903
1998	1,682
1999	815
2000	1,393
2001	755
2002	986
2003	1,313
2004	978
2005	1,266
2006	1,487
2007	1,124
2008	663
2009	1,533
2010	1,154
2011	1,339
2012	817
2013	850
2014	1,000
2015	812
2016	744
2017	398
2018	930
2019	867
2020	524
2021	683
2022	1,108
2023	812
2024	737
2025	680
2026	863

Download the Data

Data for records on 1986-07-20: 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	544
10 to 20	23
20 to 30	10
30 to 40	1
40 to 50	1
50 to 60	1
60 to 70	1