Weather Records on 12 April 1986

1,350 weather records were set or tied worldwide on 12 April 1986. Highest significance: Weimar, DE.

Key Facts for 12 April 1986

On 12 April 1986, 1,350 weather records were set or tied at long-record stations worldwide.
160 were record highs and 818 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 204 monthly and 1,144 daily.
Weimar set a daily record snow depth of 15.0 cm (5.9 in) on 12 April 1986.
Across 161 earlier years (1793 to 2026) the same calendar date averaged 496 records.

Record Map

1,350 stations

1,350 station records on 12 April 1986 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 April 1986: highest significance records shown on the map
Station	Country	Type	Value	Significance
Weimar	Germany	Record snow depth	15.0 cm (5.9 in)	57 of 100 (Notable)
Schmalkalden	Germany	Record snow depth	12.0 cm (4.7 in)	56 of 100 (Notable)
Caete	Brazil	Record daily precipitation	56.8 mm (2.2 in)	54 of 100 (Notable)
Greiz-Dolau	Germany	Record snow depth	10.0 cm (3.9 in)	53 of 100 (Notable)
Trident	United States	Record daily snowfall	12.7 cm (5.0 in)	53 of 100 (Notable)
West Yellowstone	United States	Record daily snowfall	33.3 cm (13.1 in)	53 of 100 (Notable)
Helena AP ASOS	United States	Record daily snowfall	18.3 cm (7.2 in)	53 of 100 (Notable)
Harzgerode	Germany	Record snow depth	28.0 cm (11.0 in)	52 of 100 (Notable)
Blackleaf	United States	Record daily snowfall	20.3 cm (8.0 in)	52 of 100 (Notable)
Highlands	South Africa	Record daily precipitation	60.0 mm (2.4 in)	50 of 100 (Notable)
Halmstad	Sweden	Record low minimum temperature	-8.1 C (17.4 F)	50 of 100 (Notable)
Ft Logan 4 ESE	United States	Record daily snowfall	7.6 cm (3.0 in)	50 of 100 (Notable)
Jena Sternwarte	Germany	Record snow depth	10.0 cm (3.9 in)	48 of 100 (Notable)
Cascade 5 S	United States	Record daily snowfall	17.8 cm (7.0 in)	47 of 100 (Notable)
Goldbutte 7 N	United States	Record daily snowfall	20.3 cm (8.0 in)	47 of 100 (Notable)
West Yellowstone	United States	Record daily precipitation	30.0 mm (1.2 in)	47 of 100 (Notable)
Denton	United States	Record daily snowfall	12.7 cm (5.0 in)	46 of 100 (Notable)
Trident	United States	Record snow depth	12.7 cm (5.0 in)	46 of 100 (Notable)
Nordby (Fano)	Denmark	Record low minimum temperature	-7.2 C (19.0 F)	45 of 100 (Notable)
Magdeburg	Germany	Record low minimum temperature	-6.9 C (19.6 F)	43 of 100 (Notable)
Salzburg	Austria	Record low maximum temperature	1.4 C (34.5 F)	42 of 100 (Notable)
Uccle	Belgium	Record low minimum temperature	-4.2 C (24.4 F)	42 of 100 (Notable)
Kleve	Germany	Record low minimum temperature	-6.0 C (21.2 F)	42 of 100 (Notable)
Zuerich/Fluntern	Switzerland	Record low maximum temperature	-1.6 C (29.1 F)	42 of 100 (Notable)
Kremsmuenster	Austria	Record low maximum temperature	1.5 C (34.7 F)	41 of 100 (Notable)
Muenster	Germany	Record low minimum temperature	-4.9 C (23.2 F)	41 of 100 (Notable)
Jena Sternwarte	Germany	Record low maximum temperature	2.0 C (35.6 F)	40 of 100 (Notable)
Altastenberg	Germany	Record low minimum temperature	-11.3 C (11.7 F)	40 of 100 (Notable)
Karlshamn	Sweden	Record low minimum temperature	-7.2 C (19.0 F)	40 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record low minimum temperature	-16.3 C (2.7 F)	40 of 100 (Notable)
Geisenheim	Germany	Record low minimum temperature	-5.2 C (22.6 F)	39 of 100 (Notable)
De Bilt	Netherlands	Record low minimum temperature	-6.6 C (20.1 F)	39 of 100 (Notable)
West Souburg	Netherlands	Record low maximum temperature	1.1 C (34.0 F)	39 of 100 (Notable)
Magdeburg	Germany	Record low maximum temperature	1.5 C (34.7 F)	38 of 100 (Notable)
Arnsberg	Germany	Record low minimum temperature	-9.1 C (15.6 F)	38 of 100 (Notable)
Hurbanovo	Slovakia	Record low maximum temperature	1.0 C (33.8 F)	38 of 100 (Notable)
Den Helder-1	Netherlands	Record low minimum temperature	-4.2 C (24.4 F)	38 of 100 (Notable)
Leslie (Mun)	South Africa	Record daily precipitation	35.0 mm (1.4 in)	38 of 100 (Notable)
Attu	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Halle	Germany	Record low maximum temperature	0.6 C (33.1 F)	37 of 100 (Notable)
Bernburg/Saale (Nord)	Germany	Record low maximum temperature	1.0 C (33.8 F)	37 of 100 (Notable)
Chemnitz	Germany	Record low maximum temperature	-1.8 C (28.8 F)	37 of 100 (Notable)
Eelde	Netherlands	Record low minimum temperature	-6.5 C (20.3 F)	37 of 100 (Notable)
Galata 16 SW	United States	Record snow depth	20.3 cm (8.0 in)	37 of 100 (Notable)
Great Falls AP	United States	Record daily snowfall	16.5 cm (6.5 in)	37 of 100 (Notable)
Nanning	China	Record daily precipitation	73.0 mm (2.9 in)	36 of 100 (Notable)
Kassel	Germany	Record low minimum temperature	-7.4 C (18.7 F)	36 of 100 (Notable)
Gorlitz	Germany	Record low maximum temperature	-0.5 C (31.1 F)	36 of 100 (Notable)
Valier	United States	Record snow depth	17.8 cm (7.0 in)	36 of 100 (Notable)
Charters Towers Post Office	Australia	Record high minimum temperature	22.0 C (71.6 F)	35 of 100 (Notable)
Tranebjerg	Denmark	Record low minimum temperature	-4.5 C (23.9 F)	35 of 100 (Notable)
Wasserburg	Germany	Record snow depth	15.0 cm (5.9 in)	35 of 100 (Notable)
Zagreb-Gric	Croatia	Record low maximum temperature	3.3 C (37.9 F)	35 of 100 (Notable)
Xochiapa	Mexico	Record high maximum temperature	45.0 C (113.0 F)	35 of 100 (Notable)
Velikie Luki	Russia	Record low maximum temperature	-2.7 C (27.1 F)	35 of 100 (Notable)
Fairfield	United States	Record daily snowfall	12.7 cm (5.0 in)	35 of 100 (Notable)
Warren	United States	Record low maximum temperature	2.8 C (37.0 F)	35 of 100 (Notable)
Cut Bank AP	United States	Record daily snowfall	7.6 cm (3.0 in)	35 of 100 (Notable)
Kremsmuenster	Austria	Record low minimum temperature	-3.3 C (26.1 F)	34 of 100 (Routine)
Graz	Austria	Record low maximum temperature	3.0 C (37.4 F)	34 of 100 (Routine)

Counts by Type and Timescale

1,350 records

Records set or tied on 12 April 1986 by type: Highest daily maximum 82, Lowest daily maximum 440, Highest daily minimum 78, Lowest daily minimum 378, Heaviest daily rainfall 195, Heaviest daily snowfall 74, Deepest snow cover 103.

Records on 12 April 1986 by type
Record type	Records
Highest daily maximum	82
Lowest daily maximum	440
Highest daily minimum	78
Lowest daily minimum	378
Heaviest daily rainfall	195
Heaviest daily snowfall	74
Deepest snow cover	103

Records on 12 April 1986 by timescale: all-time 2, monthly 204, daily 1,144.

How Much Records Were Beaten By

1,153 broken records

Margins by which the 1,153 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 257.0. Ties are not counted.

Top 20 by Significance

12 April 1986

Top 20 records on 12 April 1986 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 April 1986	Weimar, DE	daily snow depth	15.0 cm (5.9 in)	13.0 cm (5.1 in)	28 years	57 of 100 (Notable)
12 April 1986	Schmalkalden, DE	daily snow depth	12.0 cm (4.7 in)	12.0 cm (4.7 in)	40 years	56 of 100 (Notable)
12 April 1986	Caete, BR	daily rain	56.8 mm (2.2 in)	44.9 mm (1.8 in)	40 years	54 of 100 (Notable)
12 April 1986	Greiz-Dolau, DE	daily snow depth	10.0 cm (3.9 in)	9.0 cm (3.5 in)	45 years	53 of 100 (Notable)
12 April 1986	Trident, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	40 years	53 of 100 (Notable)
12 April 1986	West Yellowstone, US	daily snowfall	33.3 cm (13.1 in)	25.7 cm (10.1 in)	25 years	53 of 100 (Notable)
12 April 1986	Helena AP ASOS, US	daily snowfall	18.3 cm (7.2 in)	17.8 cm (7.0 in)	40 years	53 of 100 (Notable)
12 April 1986	Harzgerode, DE	daily snow depth	28.0 cm (11.0 in)	24.0 cm (9.4 in)	28 years	52 of 100 (Notable)
12 April 1986	Blackleaf, US	daily snowfall	20.3 cm (8.0 in)	14.7 cm (5.8 in)	73 years	52 of 100 (Notable)
12 April 1986	Highlands, ZA	daily rain	60.0 mm (2.4 in)	39.2 mm (1.5 in)	36 years	50 of 100 (Notable)
12 April 1986	Halmstad, SE	monthly low min	-8.1 C (17.4 F)	0.1 C (0.2 F)	101 years	50 of 100 (Notable)
12 April 1986	Ft Logan 4 ESE, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	91 years	50 of 100 (Notable)
12 April 1986	Jena Sternwarte, DE	daily snow depth	10.0 cm (3.9 in)	9.0 cm (3.5 in)	97 years	48 of 100 (Notable)
12 April 1986	Cascade 5 S, US	daily snowfall	17.8 cm (7.0 in)	12.7 cm (5.0 in)	57 years	47 of 100 (Notable)
12 April 1986	Goldbutte 7 N, US	daily snowfall	20.3 cm (8.0 in)	15.2 cm (6.0 in)	32 years	47 of 100 (Notable)
12 April 1986	West Yellowstone, US	daily rain	30.0 mm (1.2 in)	20.6 mm (0.8 in)	4 years	47 of 100 (Notable)
12 April 1986	Denton, US	daily snowfall	12.7 cm (5.0 in)	11.4 cm (4.5 in)	65 years	46 of 100 (Notable)
12 April 1986	Trident, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	36 years	46 of 100 (Notable)
12 April 1986	Nordby (Fano), DK	monthly low min	-7.2 C (19.0 F)	0.9 C (1.6 F)	75 years	45 of 100 (Notable)
12 April 1986	Magdeburg, DE	monthly low min	-6.9 C (19.6 F)	0.6 C (1.1 F)	75 years	43 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

1793 to 1986

Records set or tied on this calendar date in each year from 1793 to 1986. 1986 had 1,350 records.

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

Records on 04-12 in each year
Year	Records
1793	1
1805	1
1810	1
1812	2
1817	2
1826	1
1831	1
1845	1
1850	1
1854	1
1865	2
1866	2
1868	4
1869	5
1871	1
1873	1
1874	5
1876	2
1877	1
1878	1
1879	4
1881	1
1882	1
1885	2
1889	4
1890	10
1891	3
1892	2
1893	4
1894	1
1895	1
1896	1
1897	4
1898	4
1899	5
1900	6
1901	5
1902	3
1903	10
1904	11
1905	19
1906	24
1907	5
1908	10
1909	16
1910	15
1911	26
1912	48
1913	88
1914	41
1915	125
1916	37
1917	33
1918	40
1919	39
1920	148
1921	34
1922	48
1923	134
1924	69
1925	178
1926	347
1927	179
1928	145
1929	141
1930	638
1931	267
1932	253
1933	551
1934	531
1935	171
1936	277
1937	236
1938	175
1939	1,174
1940	1,407
1941	869
1942	191
1943	614
1944	423
1945	884
1946	347
1947	733
1948	1,496
1949	358
1950	638
1951	1,102
1952	455
1953	707
1954	424
1955	611
1956	382
1957	910
1958	542
1959	513
1960	314
1961	551
1962	510
1963	518
1964	363
1965	659
1966	520
1967	682
1968	717
1969	352
1970	568
1971	587
1972	1,316
1973	903
1974	822
1975	704
1976	1,076
1977	1,069
1978	533
1979	1,096
1980	611
1981	1,068
1982	852
1983	877
1984	671
1985	734
1986	1,350
1987	606
1988	1,369
1989	1,838
1990	946
1991	1,484
1992	1,000
1993	586
1994	1,375
1995	1,173
1996	994
1997	3,094
1998	1,409
1999	873
2000	784
2001	1,369
2002	600
2003	1,079
2004	964
2005	536
2006	796
2007	1,144
2008	1,015
2009	811
2010	935
2011	1,026
2012	666
2013	1,039
2014	597
2015	504
2016	595
2017	519
2018	868
2019	685
2020	1,150
2021	710
2022	1,862
2023	1,262
2024	1,086
2025	1,281
2026	622

Download the Data

Data for records on 1986-04-12: 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	1,094
50 to 100	35
100 to 150	15
150 to 200	6
200 to 250	2
250 to 300	1