Weather Records on 20 March 1986

666 weather records were set or tied worldwide on 20 March 1986. Highest significance: Huajintlan, MX.

Key Facts for 20 March 1986

On 20 March 1986, 666 weather records were set or tied at long-record stations worldwide.
206 were record highs and 226 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 12 monthly and 653 daily.
Huajintlan set a daily record low maximum temperature of 21.7 C (71.1 F) on 20 March 1986.
Across 166 earlier years (1808 to 2026) the same calendar date averaged 454 records.

Record Map

666 stations

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

Weather records on 20 March 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Huajintlan	Mexico	Record low maximum temperature	21.7 C (71.1 F)	58 of 100 (Notable)
Keanae 346	United States	Record daily precipitation	299.7 mm (11.8 in)	57 of 100 (Notable)
Northway AP	United States	Record daily snowfall	10.2 cm (4.0 in)	56 of 100 (Notable)
Gage AP	United States	Record daily snowfall	10.2 cm (4.0 in)	53 of 100 (Notable)
Ubatuba	Brazil	Record daily precipitation	173.3 mm (6.8 in)	52 of 100 (Notable)
Paia 406	United States	Record daily precipitation	54.4 mm (2.1 in)	51 of 100 (Notable)
Wailuku 386	United States	Record daily precipitation	91.9 mm (3.6 in)	51 of 100 (Notable)
Kailua 446	United States	Record daily precipitation	198.1 mm (7.8 in)	49 of 100 (Notable)
Paakea 350	United States	Record daily precipitation	320.0 mm (12.6 in)	49 of 100 (Notable)
Tenosique (Smn)	Mexico	Record daily precipitation	101.6 mm (4.0 in)	48 of 100 (Notable)
Waiehu Camp 484	United States	Record daily precipitation	66.0 mm (2.6 in)	46 of 100 (Notable)
Represa Itatinga	Brazil	Record daily precipitation	262.1 mm (10.3 in)	45 of 100 (Notable)
Casa Grande	Brazil	Record daily precipitation	129.2 mm (5.1 in)	44 of 100 (Notable)
Sape	Brazil	Record daily precipitation	79.7 mm (3.1 in)	44 of 100 (Notable)
Deniliquin (Wilkinson St)	Australia	Record high maximum temperature	38.7 C (101.7 F)	43 of 100 (Notable)
Chetumal (Dge)	Mexico	Record daily precipitation	62.0 mm (2.4 in)	43 of 100 (Notable)
Chestnut Hill	United States	Record high minimum temperature	12.8 C (55.0 F)	43 of 100 (Notable)
Castle Rock	United States	Record daily snowfall	13.5 cm (5.3 in)	42 of 100 (Notable)
Climax	United States	Record daily snowfall	21.8 cm (8.6 in)	42 of 100 (Notable)
Cheboygan	United States	Record low maximum temperature	-8.9 C (16.0 F)	42 of 100 (Notable)
Clear Lake	United States	Record low minimum temperature	-23.3 C (-9.9 F)	42 of 100 (Notable)
Palolo Vly 718	United States	Record daily precipitation	149.9 mm (5.9 in)	42 of 100 (Notable)
Manistique Wwtp	United States	Record low minimum temperature	-21.7 C (-7.1 F)	39 of 100 (Notable)
Petoskey	United States	Record low minimum temperature	-21.1 C (-6.0 F)	39 of 100 (Notable)
Spreckelsville 400	United States	Record daily precipitation	52.3 mm (2.1 in)	39 of 100 (Notable)
Highland Home	United States	Record daily precipitation	88.9 mm (3.5 in)	38 of 100 (Notable)
Detour Village	United States	Record low minimum temperature	-23.3 C (-9.9 F)	38 of 100 (Notable)
Dillon	United States	Record daily precipitation	38.1 mm (1.5 in)	37 of 100 (Notable)
Angoon Pwr	United States	Record daily precipitation	36.1 mm (1.4 in)	37 of 100 (Notable)
Highlands	United States	Record low minimum temperature	-10.0 C (14.0 F)	36 of 100 (Notable)
Cedar Butte	United States	Record snow depth	35.6 cm (14.0 in)	36 of 100 (Notable)
Woodruff	United States	Record high maximum temperature	19.4 C (66.9 F)	36 of 100 (Notable)
Dolisie	Congo (Brazzaville)	Record daily precipitation	93.0 mm (3.7 in)	35 of 100 (Notable)
Leedey	United States	Record daily snowfall	10.2 cm (4.0 in)	35 of 100 (Notable)
Watertown Rgnl AP	United States	Record low minimum temperature	-21.7 C (-7.1 F)	35 of 100 (Notable)
El Salto	Mexico	Record low maximum temperature	13.9 C (57.0 F)	34 of 100 (Routine)
Alpena Co Rgnl AP	United States	Record low maximum temperature	-10.0 C (14.0 F)	34 of 100 (Routine)
Urbana Wrf	United States	Record daily precipitation	28.2 mm (1.1 in)	33 of 100 (Routine)
Prentice #2	United States	Record low minimum temperature	-27.2 C (-17.0 F)	33 of 100 (Routine)
Little Port Walter	United States	Record daily precipitation	132.1 mm (5.2 in)	33 of 100 (Routine)
Kalaupapa 563	United States	Record daily precipitation	60.5 mm (2.4 in)	33 of 100 (Routine)
Manati 2 E	Puerto Rico [United States]	Record high minimum temperature	21.7 C (71.1 F)	32 of 100 (Routine)
Lewisburg 3 N	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Humaita (Samarita) .	Brazil	Record daily precipitation	177.5 mm (7.0 in)	31 of 100 (Routine)
Chohataury	Georgia	Record daily precipitation	31.0 mm (1.2 in)	31 of 100 (Routine)
Bergland Dam	United States	Record low maximum temperature	-10.0 C (14.0 F)	31 of 100 (Routine)
Beaver Is	United States	Record low maximum temperature	-8.3 C (17.1 F)	31 of 100 (Routine)
Clover Valley	United States	Record high maximum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Salesopolis	Brazil	Record daily precipitation	64.0 mm (2.5 in)	30 of 100 (Routine)
Harbor Beach 1 SSE	United States	Record low maximum temperature	-7.2 C (19.0 F)	30 of 100 (Routine)
Watersmeet	United States	Record low minimum temperature	-31.1 C (-24.0 F)	30 of 100 (Routine)
Saucier Exp Forest	United States	Record daily precipitation	74.9 mm (2.9 in)	30 of 100 (Routine)
Clemson UNIV	United States	Record daily precipitation	39.9 mm (1.6 in)	30 of 100 (Routine)
Ponte Alta 1	Brazil	Record daily precipitation	79.6 mm (3.1 in)	29 of 100 (Routine)
Usina Itatinga	Brazil	Record daily precipitation	204.8 mm (8.1 in)	29 of 100 (Routine)
Supai	United States	Record high minimum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Gaylord	United States	Record low minimum temperature	-23.3 C (-9.9 F)	29 of 100 (Routine)
Kenton	United States	Record daily snowfall	20.3 cm (8.0 in)	29 of 100 (Routine)
Newberry-Luce Co Rd Commission	United States	Record low minimum temperature	-24.4 C (-11.9 F)	29 of 100 (Routine)
Kingstree	United States	Record daily precipitation	26.7 mm (1.1 in)	29 of 100 (Routine)

Counts by Type and Timescale

666 records

Records set or tied on 20 March 1986 by type: Highest daily maximum 140, Lowest daily maximum 115, Highest daily minimum 66, Lowest daily minimum 111, Heaviest daily rainfall 193, Heaviest daily snowfall 21, Deepest snow cover 20.

Records on 20 March 1986 by type
Record type	Records
Highest daily maximum	140
Lowest daily maximum	115
Highest daily minimum	66
Lowest daily minimum	111
Heaviest daily rainfall	193
Heaviest daily snowfall	21
Deepest snow cover	20

Records on 20 March 1986 by timescale: all-time 1, monthly 12, daily 653.

How Much Records Were Beaten By

539 broken records

Margins by which the 539 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 218.4. Ties are not counted.

Top 20 by Significance

20 March 1986

Top 20 records on 20 March 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 March 1986	Huajintlan, MX	daily low max	21.7 C (71.1 F)	12.2 C (22.0 F)	40 years	58 of 100 (Notable)
20 March 1986	Keanae 346, US	daily rain	299.7 mm (11.8 in)	134.3 mm (5.3 in)	65 years	57 of 100 (Notable)
20 March 1986	Northway AP, US	daily snowfall	10.2 cm (4.0 in)	8.4 cm (3.3 in)	43 years	56 of 100 (Notable)
20 March 1986	Gage AP, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	80 years	53 of 100 (Notable)
20 March 1986	Ubatuba, BR	daily rain	173.3 mm (6.8 in)	122.5 mm (4.8 in)	29 years	52 of 100 (Notable)
20 March 1986	Paia 406, US	daily rain	54.4 mm (2.1 in)	40.4 mm (1.6 in)	21 years	51 of 100 (Notable)
20 March 1986	Wailuku 386, US	daily rain	91.9 mm (3.6 in)	84.3 mm (3.3 in)	27 years	51 of 100 (Notable)
20 March 1986	Kailua 446, US	daily rain	198.1 mm (7.8 in)	50.3 mm (2.0 in)	65 years	49 of 100 (Notable)
20 March 1986	Paakea 350, US	daily rain	320.0 mm (12.6 in)	218.4 mm (8.6 in)	17 years	49 of 100 (Notable)
20 March 1986	Tenosique (Smn), MX	monthly rain	101.6 mm (4.0 in)	32.8 mm (1.3 in)	21 years	48 of 100 (Notable)
20 March 1986	Waiehu Camp 484, US	daily rain	66.0 mm (2.6 in)	61.7 mm (2.4 in)	27 years	46 of 100 (Notable)
20 March 1986	Represa Itatinga, BR	daily rain	262.1 mm (10.3 in)	111.1 mm (4.4 in)	36 years	45 of 100 (Notable)
20 March 1986	Casa Grande, BR	daily rain	129.2 mm (5.1 in)	79.2 mm (3.1 in)	3 years	44 of 100 (Notable)
20 March 1986	Sape, BR	daily rain	79.7 mm (3.1 in)	39.5 mm (1.6 in)	39 years	44 of 100 (Notable)
20 March 1986	Deniliquin (Wilkinson St), AU	daily high max	38.7 C (101.7 F)	2.4 C (4.3 F)	99 years	43 of 100 (Notable)
20 March 1986	Chetumal (Dge), MX	daily rain	62.0 mm (2.4 in)	54.9 mm (2.2 in)	1 year	43 of 100 (Notable)
20 March 1986	Chestnut Hill, US	daily high min	12.8 C (55.0 F)	5.0 C (9.0 F)	83 years	43 of 100 (Notable)
20 March 1986	Castle Rock, US	daily snowfall	13.5 cm (5.3 in)	8.4 cm (3.3 in)	73 years	42 of 100 (Notable)
20 March 1986	Climax, US	daily snowfall	21.8 cm (8.6 in)	4.0 cm (1.6 in)	89 years	42 of 100 (Notable)
20 March 1986	Cheboygan, US	daily low max	-8.9 C (16.0 F)	2.8 C (5.0 F)	93 years	42 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

1808 to 1986

Records set or tied on this calendar date in each year from 1808 to 1986. 1986 had 666 records.

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

Records on 03-20 in each year
Year	Records
1808	3
1818	1
1822	2
1830	1
1834	1
1838	1
1845	1
1849	3
1850	1
1852	1
1853	1
1858	1
1862	1
1865	11
1866	1
1870	1
1872	2
1873	1
1874	2
1875	2
1876	2
1879	2
1881	2
1882	2
1883	1
1884	2
1885	3
1886	2
1887	3
1888	5
1889	5
1890	1
1892	1
1893	2
1894	5
1895	2
1896	5
1897	2
1898	5
1899	9
1900	8
1901	6
1902	13
1903	34
1904	12
1905	6
1906	16
1907	17
1908	4
1909	6
1910	20
1911	35
1912	12
1913	42
1914	51
1915	22
1916	46
1917	49
1918	40
1919	31
1920	52
1921	93
1922	49
1923	275
1924	76
1925	121
1926	103
1927	298
1928	258
1929	56
1930	86
1931	492
1932	117
1933	354
1934	243
1935	408
1936	245
1937	220
1938	394
1939	240
1940	486
1941	390
1942	325
1943	378
1944	611
1945	636
1946	435
1947	299
1948	697
1949	352
1950	367
1951	788
1952	589
1953	350
1954	303
1955	719
1956	527
1957	516
1958	467
1959	293
1960	594
1961	332
1962	363
1963	447
1964	525
1965	2,020
1966	367
1967	784
1968	819
1969	374
1970	912
1971	377
1972	635
1973	422
1974	755
1975	932
1976	989
1977	352
1978	863
1979	712
1980	458
1981	712
1982	1,189
1983	1,179
1984	775
1985	636
1986	666
1987	867
1988	1,044
1989	793
1990	1,496
1991	1,205
1992	654
1993	1,014
1994	1,040
1995	857
1996	1,147
1997	1,801
1998	963
1999	793
2000	894
2001	1,048
2002	1,698
2003	1,166
2004	1,701
2005	602
2006	1,353
2007	1,053
2008	993
2009	445
2010	1,264
2011	1,003
2012	3,051
2013	762
2014	800
2015	521
2016	450
2017	1,331
2018	587
2019	530
2020	1,006
2021	487
2022	667
2023	975
2024	520
2025	848
2026	3,126

Download the Data

Data for records on 1986-03-20: 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 50	509
50 to 100	17
100 to 150	10
150 to 200	0
200 to 250	3