Weather Records on 20 April 2018

1,309 weather records were set or tied worldwide on 20 April 2018. Highest significance: Kewaunee, US.

Key Facts for 20 April 2018

On 20 April 2018, 1,309 weather records were set or tied at long-record stations worldwide.
759 were record highs and 252 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 35 monthly and 1,274 daily.
Kewaunee set a daily record snow depth of 22.9 cm (9.0 in) on 20 April 2018.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 457 records.

Record Map

1,309 stations

1,309 station records on 20 April 2018 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 2018: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kewaunee	United States	Record snow depth	22.9 cm (9.0 in)	76 of 100 (Major)
Shawano 2SSW	United States	Record snow depth	38.1 cm (15.0 in)	60 of 100 (Major)
Vanderbilt 11ENE	United States	Record snow depth	58.4 cm (23.0 in)	57 of 100 (Notable)
Lake Wilson	United States	Record snow depth	22.9 cm (9.0 in)	57 of 100 (Notable)
Tracy	United States	Record snow depth	45.7 cm (18.0 in)	56 of 100 (Notable)
Sioux Rapids	United States	Record snow depth	10.2 cm (4.0 in)	54 of 100 (Notable)
Albert Lea 3SE	United States	Record snow depth	30.5 cm (12.0 in)	52 of 100 (Notable)
Oconto 4 W	United States	Record snow depth	38.1 cm (15.0 in)	52 of 100 (Notable)
Sturgeon Bay Exp Farm	United States	Record snow depth	50.8 cm (20.0 in)	52 of 100 (Notable)
Waupaca	United States	Record snow depth	45.7 cm (18.0 in)	52 of 100 (Notable)
Canton	United States	Record snow depth	10.2 cm (4.0 in)	49 of 100 (Notable)
Altastenberg	Germany	Record high minimum temperature	13.9 C (57.0 F)	47 of 100 (Notable)
Northwood	United States	Record low minimum temperature	-9.4 C (15.1 F)	47 of 100 (Notable)
Saentis	Switzerland	Record high minimum temperature	6.2 C (43.2 F)	46 of 100 (Notable)
Cresco 1 NE	United States	Record low minimum temperature	-10.6 C (12.9 F)	46 of 100 (Notable)
Swea City 5N	United States	Record snow depth	17.8 cm (7.0 in)	45 of 100 (Notable)
Grand Meadow	United States	Record low minimum temperature	-9.4 C (15.1 F)	45 of 100 (Notable)
Panguitch	United States	Record daily snowfall	5.1 cm (2.0 in)	45 of 100 (Notable)
Vanersborg	Sweden	Record high maximum temperature	23.2 C (73.8 F)	44 of 100 (Notable)
Elkader 6 SSW	United States	Record low minimum temperature	-9.4 C (15.1 F)	44 of 100 (Notable)
Emmetsburg	United States	Record snow depth	15.2 cm (6.0 in)	44 of 100 (Notable)
Le Mars	United States	Record snow depth	10.2 cm (4.0 in)	44 of 100 (Notable)
Addison	United States	Record daily snowfall	5.3 cm (2.1 in)	44 of 100 (Notable)
New London	United States	Record snow depth	40.6 cm (16.0 in)	44 of 100 (Notable)
Angermunde	Germany	Record high maximum temperature	26.6 C (79.9 F)	43 of 100 (Notable)
Waren	Germany	Record high maximum temperature	26.3 C (79.3 F)	43 of 100 (Notable)
Halmstad	Sweden	Record high maximum temperature	24.0 C (75.2 F)	43 of 100 (Notable)
Galva	United States	Record low minimum temperature	-6.1 C (21.0 F)	43 of 100 (Notable)
Cherokee	United States	Record snow depth	15.2 cm (6.0 in)	43 of 100 (Notable)
Middleboro	United States	Record low maximum temperature	5.0 C (41.0 F)	43 of 100 (Notable)
Minneota	United States	Record snow depth	25.4 cm (10.0 in)	43 of 100 (Notable)
Marshfield Exp Farm	United States	Record snow depth	15.2 cm (6.0 in)	43 of 100 (Notable)
Alpena Co Rgnl AP	United States	Record snow depth	28.0 cm (11.0 in)	43 of 100 (Notable)
Lindenberg	Germany	Record high minimum temperature	12.2 C (54.0 F)	42 of 100 (Notable)
Uppsala_Aut	Sweden	Record high maximum temperature	23.6 C (74.5 F)	42 of 100 (Notable)
Osage	United States	Record low minimum temperature	-6.1 C (21.0 F)	42 of 100 (Notable)
Postville	United States	Record low minimum temperature	-5.6 C (21.9 F)	42 of 100 (Notable)
Antigo	United States	Record snow depth	33.0 cm (13.0 in)	42 of 100 (Notable)
Alicia 2 NNE	United States	Record low maximum temperature	12.8 C (55.0 F)	41 of 100 (Notable)
Rock Is L&D 15	United States	Record low minimum temperature	-3.3 C (26.1 F)	41 of 100 (Notable)
Allison	United States	Record low minimum temperature	-7.2 C (19.0 F)	41 of 100 (Notable)
Ruston la Tech	United States	Record low minimum temperature	1.7 C (35.1 F)	41 of 100 (Notable)
Charlevoix	United States	Record snow depth	43.2 cm (17.0 in)	41 of 100 (Notable)
Westermarkelsdorf/Fehmarn	Germany	Record high maximum temperature	25.2 C (77.4 F)	40 of 100 (Notable)
Marshalltown	United States	Record low minimum temperature	-4.4 C (24.1 F)	40 of 100 (Notable)
Manistique Wwtp	United States	Record snow depth	38.1 cm (15.0 in)	40 of 100 (Notable)
Dawson	United States	Record snow depth	12.7 cm (5.0 in)	40 of 100 (Notable)
Superior	United States	Record low minimum temperature	-6.1 C (21.0 F)	40 of 100 (Notable)
Forest City 2 NNE	United States	Record low minimum temperature	-7.8 C (18.0 F)	39 of 100 (Notable)
Pte de Chassiron	France	Record high minimum temperature	14.7 C (58.5 F)	38 of 100 (Notable)
Luxembourg Airport	Luxembourg	Record high maximum temperature	27.9 C (82.2 F)	38 of 100 (Notable)
Kwajalein	Marshall Islands	Record daily precipitation	75.7 mm (3.0 in)	38 of 100 (Notable)
Jonkopings_Flygplats	Sweden	Record high maximum temperature	24.8 C (76.6 F)	38 of 100 (Notable)
Calico Rock 2 WSW	United States	Record low minimum temperature	-1.7 C (28.9 F)	38 of 100 (Notable)
Milford 4 NW	United States	Record snow depth	17.8 cm (7.0 in)	38 of 100 (Notable)
Brillion	United States	Record snow depth	30.5 cm (12.0 in)	38 of 100 (Notable)
Neillsville 3ESE	United States	Record snow depth	17.8 cm (7.0 in)	38 of 100 (Notable)
Stratford 1 NW	United States	Record snow depth	22.9 cm (9.0 in)	38 of 100 (Notable)
Lastovo	Croatia	Record high minimum temperature	17.6 C (63.7 F)	37 of 100 (Notable)
Emmetsburg	United States	Record low minimum temperature	-8.3 C (17.1 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,309 records

Records set or tied on 20 April 2018 by type: Highest daily maximum 471, Lowest daily maximum 110, Highest daily minimum 288, Lowest daily minimum 142, Heaviest daily rainfall 110, Heaviest daily snowfall 18, Deepest snow cover 170.

Records on 20 April 2018 by type
Record type	Records
Highest daily maximum	471
Lowest daily maximum	110
Highest daily minimum	288
Lowest daily minimum	142
Heaviest daily rainfall	110
Heaviest daily snowfall	18
Deepest snow cover	170

Records on 20 April 2018 by timescale: all-time 0, monthly 35, daily 1,274.

How Much Records Were Beaten By

1,145 broken records

Margins by which the 1,145 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 406.0. Ties are not counted.

Top 20 by Significance

20 April 2018

Top 20 records on 20 April 2018 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 2018	Kewaunee, US	daily snow depth	22.9 cm (9.0 in)	22.9 cm (9.0 in)	89 years	76 of 100 (Major)
20 April 2018	Shawano 2SSW, US	daily snow depth	38.1 cm (15.0 in)	30.5 cm (12.0 in)	36 years	60 of 100 (Major)
20 April 2018	Vanderbilt 11ENE, US	daily snow depth	58.4 cm (23.0 in)	33.0 cm (13.0 in)	95 years	57 of 100 (Notable)
20 April 2018	Lake Wilson, US	daily snow depth	22.9 cm (9.0 in)	22.9 cm (9.0 in)	44 years	57 of 100 (Notable)
20 April 2018	Tracy, US	daily snow depth	45.7 cm (18.0 in)	40.6 cm (16.0 in)	36 years	56 of 100 (Notable)
20 April 2018	Sioux Rapids, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	69 years	54 of 100 (Notable)
20 April 2018	Albert Lea 3SE, US	daily snow depth	30.5 cm (12.0 in)	28.0 cm (11.0 in)	24 years	52 of 100 (Notable)
20 April 2018	Oconto 4 W, US	daily snow depth	38.1 cm (15.0 in)	33.0 cm (13.0 in)	7 years	52 of 100 (Notable)
20 April 2018	Sturgeon Bay Exp Farm, US	daily snow depth	50.8 cm (20.0 in)	38.1 cm (15.0 in)	7 years	52 of 100 (Notable)
20 April 2018	Waupaca, US	daily snow depth	45.7 cm (18.0 in)	30.5 cm (12.0 in)	7 years	52 of 100 (Notable)
20 April 2018	Canton, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	69 years	49 of 100 (Notable)
20 April 2018	Altastenberg, DE	daily high min	13.9 C (57.0 F)	3.1 C (5.6 F)	124 years	47 of 100 (Notable)
20 April 2018	Northwood, US	daily low min	-9.4 C (15.1 F)	3.8 C (6.8 F)	120 years	47 of 100 (Notable)
20 April 2018	Saentis, CH	monthly high min	6.2 C (43.2 F)	0.8 C (1.4 F)	84 years	46 of 100 (Notable)
20 April 2018	Cresco 1 NE, US	daily low min	-10.6 C (12.9 F)	3.4 C (6.1 F)	113 years	46 of 100 (Notable)
20 April 2018	Swea City 5N, US	daily snow depth	17.8 cm (7.0 in)	17.8 cm (7.0 in)	63 years	45 of 100 (Notable)
20 April 2018	Grand Meadow, US	daily low min	-9.4 C (15.1 F)	2.7 C (4.9 F)	104 years	45 of 100 (Notable)
20 April 2018	Panguitch, US	daily snowfall	5.1 cm (2.0 in)	3.8 cm (1.5 in)	85 years	45 of 100 (Notable)
20 April 2018	Vanersborg, SE	daily high max	23.2 C (73.8 F)	1.7 C (3.1 F)	107 years	44 of 100 (Notable)
20 April 2018	Elkader 6 SSW, US	daily low min	-9.4 C (15.1 F)	2.7 C (4.9 F)	120 years	44 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

1807 to 2018

Records set or tied on this calendar date in each year from 1807 to 2018. 2018 had 1,309 records.

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

Records on 04-20 in each year
Year	Records
1807	3
1817	1
1838	1
1849	2
1851	1
1852	4
1854	1
1858	1
1860	1
1864	1
1865	3
1868	1
1869	1
1870	1
1872	1
1874	3
1875	4
1876	1
1878	2
1880	2
1881	2
1884	1
1885	1
1886	2
1889	1
1891	2
1892	1
1893	6
1894	8
1895	7
1896	3
1897	6
1898	1
1899	1
1901	8
1902	3
1903	14
1904	31
1905	9
1906	12
1907	18
1908	14
1909	22
1910	25
1911	18
1912	12
1913	19
1914	46
1915	45
1916	19
1917	33
1918	42
1919	17
1920	49
1921	27
1922	40
1923	157
1924	113
1925	169
1926	310
1927	442
1928	212
1929	182
1930	87
1931	255
1932	166
1933	279
1934	384
1935	384
1936	311
1937	427
1938	339
1939	158
1940	519
1941	558
1942	223
1943	670
1944	304
1945	391
1946	395
1947	308
1948	493
1949	477
1950	329
1951	690
1952	552
1953	1,071
1954	377
1955	623
1956	384
1957	730
1958	327
1959	563
1960	472
1961	1,078
1962	487
1963	595
1964	749
1965	724
1966	1,174
1967	864
1968	975
1969	382
1970	948
1971	765
1972	531
1973	982
1974	673
1975	344
1976	661
1977	693
1978	800
1979	495
1980	1,539
1981	706
1982	906
1983	1,844
1984	922
1985	1,140
1986	770
1987	1,447
1988	1,144
1989	1,187
1990	1,495
1991	1,075
1992	1,009
1993	772
1994	756
1995	1,351
1996	970
1997	833
1998	1,490
1999	674
2000	931
2001	752
2002	1,081
2003	758
2004	567
2005	707
2006	859
2007	582
2008	1,110
2009	845
2010	693
2011	1,477
2012	726
2013	1,520
2014	384
2015	702
2016	650
2017	734
2018	1,309
2019	1,019
2020	449
2021	1,215
2022	596
2023	828
2024	673
2025	836
2026	533

Download the Data

Data for records on 2018-04-20: 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).

Histogram of margins by which records were beaten on 20 April 2018
Margin	Records
0 to 100	1,094
100 to 200	32
200 to 300	12
300 to 400	6
400 to 500	1