Weather Records on 18 April 2020

770 weather records were set or tied worldwide on 18 April 2020. Highest significance: Port Allegany, US.

Key Facts for 18 April 2020

On 18 April 2020, 770 weather records were set or tied at long-record stations worldwide.
222 were record highs and 233 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 15 monthly and 754 daily.
Port Allegany set a daily record snow depth of 15.2 cm (6.0 in) on 18 April 2020.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 465 records.

Record Map

770 stations

770 station records on 18 April 2020 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 2020: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Allegany	United States	Record snow depth	15.2 cm (6.0 in)	68 of 100 (Major)
Kahuku 912	United States	Record high maximum temperature	31.1 C (88.0 F)	66 of 100 (Major)
Liberty 1 NE	United States	Record daily snowfall	17.8 cm (7.0 in)	65 of 100 (Major)
Yamagata	Japan	Record daily precipitation	55.1 mm (2.2 in)	64 of 100 (Major)
Corning	United States	Record daily snowfall	9.7 cm (3.8 in)	61 of 100 (Major)
Corning	United States	Record snow depth	10.2 cm (4.0 in)	61 of 100 (Major)
Galeton	United States	Record snow depth	17.8 cm (7.0 in)	58 of 100 (Notable)
Unionville	United States	Record snow depth	15.2 cm (6.0 in)	57 of 100 (Notable)
Renovo	United States	Record daily snowfall	7.6 cm (3.0 in)	57 of 100 (Notable)
Tasiilaq	Greenland [Denmark]	Record daily precipitation	80.0 mm (3.1 in)	56 of 100 (Notable)
Addison	United States	Record daily snowfall	8.4 cm (3.3 in)	54 of 100 (Notable)
Mito	Japan	Record daily precipitation	68.1 mm (2.7 in)	52 of 100 (Notable)
Mt Ayr	United States	Record snow depth	10.2 cm (4.0 in)	50 of 100 (Notable)
Bloomingdale	United States	Record daily snowfall	6.1 cm (2.4 in)	50 of 100 (Notable)
Angola	United States	Record daily snowfall	7.6 cm (3.0 in)	49 of 100 (Notable)
Brockton	United States	Record daily snowfall	5.1 cm (2.0 in)	49 of 100 (Notable)
Bradford 4SW Rsch 5	United States	Record snow depth	12.7 cm (5.0 in)	49 of 100 (Notable)
Bellegarde	France	Record daily precipitation	36.8 mm (1.4 in)	48 of 100 (Notable)
Blue Hill Coop	United States	Record snow depth	10.2 cm (4.0 in)	48 of 100 (Notable)
Hillsdale	United States	Record daily snowfall	8.6 cm (3.4 in)	48 of 100 (Notable)
Southbridge 3 SW	United States	Record daily snowfall	10.2 cm (4.0 in)	47 of 100 (Notable)
Kirksville	United States	Record daily snowfall	5.1 cm (2.0 in)	47 of 100 (Notable)
Towanda 1 S	United States	Record daily snowfall	6.9 cm (2.7 in)	47 of 100 (Notable)
Goloson Intl	Honduras	Record high minimum temperature	28.7 C (83.7 F)	46 of 100 (Notable)
Purnea	India	Record daily precipitation	52.3 mm (2.1 in)	46 of 100 (Notable)
Plymouth	United States	Record daily snowfall	8.1 cm (3.2 in)	46 of 100 (Notable)
Greene	United States	Record daily snowfall	5.1 cm (2.0 in)	46 of 100 (Notable)
Waverly	United States	Record daily snowfall	5.1 cm (2.0 in)	46 of 100 (Notable)
Canton	United States	Record daily snowfall	10.2 cm (4.0 in)	46 of 100 (Notable)
Oakland 1 SE	United States	Record daily precipitation	25.9 mm (1.0 in)	45 of 100 (Notable)
Elmira	United States	Record daily snowfall	5.1 cm (2.0 in)	45 of 100 (Notable)
Wakamatsu	Japan	Record daily precipitation	55.9 mm (2.2 in)	44 of 100 (Notable)
Logansport Cicott St	United States	Record low maximum temperature	2.8 C (37.0 F)	44 of 100 (Notable)
Olean	United States	Record daily snowfall	7.6 cm (3.0 in)	44 of 100 (Notable)
Stevenson Dam	United States	Record daily snowfall	9.7 cm (3.8 in)	44 of 100 (Notable)
Streator 2SE	United States	Record low maximum temperature	3.9 C (39.0 F)	43 of 100 (Notable)
Milford	United States	Record daily snowfall	7.6 cm (3.0 in)	43 of 100 (Notable)
Beaver City	United States	Record low minimum temperature	-8.3 C (17.1 F)	43 of 100 (Notable)
Bradford 4SW Rsch 5	United States	Record daily snowfall	13.5 cm (5.3 in)	43 of 100 (Notable)
Kane 1NNE	United States	Record snow depth	10.2 cm (4.0 in)	43 of 100 (Notable)
Stevenson Dam	United States	Record snow depth	10.2 cm (4.0 in)	43 of 100 (Notable)
Dutch Harbor	United States	Record high minimum temperature	5.0 C (41.0 F)	43 of 100 (Notable)
Nagano	Japan	Record daily precipitation	33.0 mm (1.3 in)	42 of 100 (Notable)
Franklin	United States	Record daily snowfall	5.1 cm (2.0 in)	42 of 100 (Notable)
Monroe City	United States	Record low maximum temperature	5.0 C (41.0 F)	42 of 100 (Notable)
Wellsboro 4 SW	United States	Record daily snowfall	18.8 cm (7.4 in)	42 of 100 (Notable)
Sonnblick	Austria	Record high maximum temperature	2.6 C (36.7 F)	41 of 100 (Notable)
Gagnoa	Cote D'Ivoire	Record high minimum temperature	25.9 C (78.6 F)	41 of 100 (Notable)
Podor	Senegal	Record low maximum temperature	33.5 C (92.3 F)	41 of 100 (Notable)
Harrison	United States	Record low minimum temperature	-1.7 C (28.9 F)	41 of 100 (Notable)
Marshall	United States	Record low minimum temperature	-1.7 C (28.9 F)	41 of 100 (Notable)
Subiaco	United States	Record low minimum temperature	1.1 C (34.0 F)	41 of 100 (Notable)
Watseka Public Works	United States	Record low maximum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Lamoni	United States	Record snow depth	10.2 cm (4.0 in)	41 of 100 (Notable)
Candor 2SE	United States	Record daily snowfall	7.6 cm (3.0 in)	41 of 100 (Notable)
Glen Hazel 2 NE Dam	United States	Record snow depth	12.7 cm (5.0 in)	41 of 100 (Notable)
Canon City	United States	Record low minimum temperature	-8.3 C (17.1 F)	40 of 100 (Notable)
Bloomfield	United States	Record low maximum temperature	5.6 C (42.1 F)	40 of 100 (Notable)
Cooperstown	United States	Record low maximum temperature	-0.6 C (30.9 F)	40 of 100 (Notable)
Rushford	United States	Record snow depth	12.7 cm (5.0 in)	40 of 100 (Notable)

Counts by Type and Timescale

770 records

Records set or tied on 18 April 2020 by type: Highest daily maximum 87, Lowest daily maximum 108, Highest daily minimum 135, Lowest daily minimum 125, Heaviest daily rainfall 133, Heaviest daily snowfall 92, Deepest snow cover 90.

Records on 18 April 2020 by type
Record type	Records
Highest daily maximum	87
Lowest daily maximum	108
Highest daily minimum	135
Lowest daily minimum	125
Heaviest daily rainfall	133
Heaviest daily snowfall	92
Deepest snow cover	90

Records on 18 April 2020 by timescale: all-time 1, monthly 15, daily 754.

How Much Records Were Beaten By

650 broken records

Margins by which the 650 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 178.0. Ties are not counted.

Top 20 by Significance

18 April 2020

Top 20 records on 18 April 2020 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 2020	Port Allegany, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	71 years	68 of 100 (Major)
18 April 2020	Kahuku 912, US	daily high max	31.1 C (88.0 F)	3.3 C (5.9 F)	104 years	66 of 100 (Major)
18 April 2020	Liberty 1 NE, US	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	119 years	65 of 100 (Major)
18 April 2020	Yamagata, JP	daily rain	55.1 mm (2.2 in)	36.6 mm (1.4 in)	57 years	64 of 100 (Major)
18 April 2020	Corning, US	daily snowfall	9.7 cm (3.8 in)	9.4 cm (3.7 in)	99 years	61 of 100 (Major)
18 April 2020	Corning, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	84 years	61 of 100 (Major)
18 April 2020	Galeton, US	daily snow depth	17.8 cm (7.0 in)	15.3 cm (6.0 in)	67 years	58 of 100 (Notable)
18 April 2020	Unionville, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	108 years	57 of 100 (Notable)
18 April 2020	Renovo, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	120 years	57 of 100 (Notable)
18 April 2020	Tasiilaq, GL	daily rain	80.0 mm (3.1 in)	32.0 mm (1.3 in)	22 years	56 of 100 (Notable)
18 April 2020	Addison, US	daily snowfall	8.4 cm (3.3 in)	8.4 cm (3.3 in)	126 years	54 of 100 (Notable)
18 April 2020	Mito, JP	daily rain	68.1 mm (2.7 in)	34.3 mm (1.4 in)	58 years	52 of 100 (Notable)
18 April 2020	Mt Ayr, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	124 years	50 of 100 (Notable)
18 April 2020	Bloomingdale, US	daily snowfall	6.1 cm (2.4 in)	4.8 cm (1.9 in)	110 years	50 of 100 (Notable)
18 April 2020	Angola, US	daily snowfall	7.6 cm (3.0 in)	4.3 cm (1.7 in)	119 years	49 of 100 (Notable)
18 April 2020	Brockton, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	125 years	49 of 100 (Notable)
18 April 2020	Bradford 4SW Rsch 5, US	daily snow depth	12.7 cm (5.0 in)	10.2 cm (4.0 in)	77 years	49 of 100 (Notable)
18 April 2020	Bellegarde, FR	daily rain	36.8 mm (1.4 in)	24.9 mm (1.0 in)	42 years	48 of 100 (Notable)
18 April 2020	Blue Hill Coop, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	124 years	48 of 100 (Notable)
18 April 2020	Hillsdale, US	daily snowfall	8.6 cm (3.4 in)	3.5 cm (1.4 in)	119 years	48 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 2020

Records set or tied on this calendar date in each year from 1793 to 2020. 2020 had 770 records.

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

Records on 04-18 in each year
Year	Records
1793	1
1807	2
1815	1
1838	1
1847	1
1849	1
1851	1
1852	3
1854	3
1855	1
1865	4
1867	1
1870	1
1871	1
1875	4
1877	2
1878	1
1879	3
1880	2
1884	2
1886	2
1887	3
1888	1
1889	1
1890	2
1891	1
1892	3
1893	5
1894	7
1895	2
1896	3
1897	5
1898	8
1899	2
1900	2
1901	6
1902	5
1903	11
1904	9
1905	12
1906	18
1907	17
1908	37
1909	19
1910	19
1911	25
1912	21
1913	26
1914	38
1915	31
1916	22
1917	40
1918	76
1919	16
1920	64
1921	58
1922	85
1923	107
1924	101
1925	154
1926	322
1927	391
1928	323
1929	126
1930	113
1931	173
1932	326
1933	211
1934	391
1935	264
1936	483
1937	477
1938	711
1939	525
1940	322
1941	496
1942	287
1943	298
1944	259
1945	371
1946	357
1947	444
1948	932
1949	345
1950	244
1951	658
1952	536
1953	1,322
1954	442
1955	817
1956	467
1957	629
1958	370
1959	468
1960	320
1961	520
1962	484
1963	662
1964	449
1965	363
1966	776
1967	882
1968	867
1969	795
1970	771
1971	1,106
1972	470
1973	953
1974	326
1975	751
1976	1,309
1977	717
1978	803
1979	841
1980	842
1981	708
1982	616
1983	2,082
1984	625
1985	1,119
1986	622
1987	1,068
1988	936
1989	625
1990	1,368
1991	780
1992	702
1993	730
1994	1,218
1995	1,601
1996	826
1997	1,256
1998	1,011
1999	1,428
2000	912
2001	1,487
2002	2,084
2003	969
2004	846
2005	622
2006	1,262
2007	675
2008	913
2009	624
2010	478
2011	1,122
2012	744
2013	2,509
2014	534
2015	519
2016	973
2017	588
2018	1,202
2019	601
2020	770
2021	592
2022	1,013
2023	739
2024	641
2025	997
2026	498

Download the Data

Data for records on 2020-04-18: 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 25	511
25 to 50	55
50 to 75	41
75 to 100	20
100 to 125	15
125 to 150	4
150 to 175	3
175 to 200	1