Weather Records on 20 April 2001

752 weather records were set or tied worldwide on 20 April 2001. Highest significance: Virginia City, US.

Key Facts for 20 April 2001

On 20 April 2001, 752 weather records were set or tied at long-record stations worldwide.
278 were record highs and 268 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 23 monthly and 728 daily.
Virginia City set a monthly record daily snowfall of 22.9 cm (9.0 in) on 20 April 2001.
Across 159 earlier years (1807 to 2026) the same calendar date averaged 460 records.

Record Map

752 stations

752 station records on 20 April 2001 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 April 2001: highest significance records shown on the map
Station	Country	Type	Value	Significance
Virginia City	United States	Record daily snowfall	22.9 cm (9.0 in)	90 of 100 (Exceptional)
Minden	United States	Record daily precipitation	27.7 mm (1.1 in)	62 of 100 (Major)
Hebgen Dam	United States	Record daily precipitation	34.0 mm (1.3 in)	59 of 100 (Notable)
Blackleaf	United States	Record daily snowfall	20.3 cm (8.0 in)	52 of 100 (Notable)
Hebgen Dam	United States	Record daily snowfall	24.1 cm (9.5 in)	51 of 100 (Notable)
Guanghua	China	Record daily precipitation	46.5 mm (1.8 in)	49 of 100 (Notable)
Virginia City	United States	Record snow depth	22.9 cm (9.0 in)	49 of 100 (Notable)
Circleville	United States	Record low minimum temperature	-7.2 C (19.0 F)	43 of 100 (Notable)
Marshall	United States	Record low minimum temperature	-5.0 C (23.0 F)	42 of 100 (Notable)
Kimberley Downs	Australia	Record daily precipitation	46.0 mm (1.8 in)	41 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record low minimum temperature	4.1 C (39.4 F)	41 of 100 (Notable)
W Pt	United States	Record daily precipitation	42.2 mm (1.7 in)	41 of 100 (Notable)
Toms River	United States	Record low minimum temperature	-6.7 C (19.9 F)	41 of 100 (Notable)
Ashwood	United States	Record daily snowfall	10.2 cm (4.0 in)	41 of 100 (Notable)
Puntilla	United States	Record low maximum temperature	-15.0 C (5.0 F)	41 of 100 (Notable)
Stornoway Airport	United Kingdom	Record low minimum temperature	-1.9 C (28.6 F)	40 of 100 (Notable)
Richfield	United States	Record high maximum temperature	32.8 C (91.0 F)	40 of 100 (Notable)
Evergreen	United States	Record low minimum temperature	2.2 C (36.0 F)	39 of 100 (Notable)
Calaveras Big Trees	United States	Record daily precipitation	69.9 mm (2.8 in)	39 of 100 (Notable)
Hazelton	United States	Record daily snowfall	5.1 cm (2.0 in)	39 of 100 (Notable)
Scott City	United States	Record high maximum temperature	32.8 C (91.0 F)	39 of 100 (Notable)
Antelope 6 SSW	United States	Record daily snowfall	12.7 cm (5.0 in)	39 of 100 (Notable)
Glen St Mary 1 W	United States	Record low minimum temperature	-0.6 C (30.9 F)	38 of 100 (Notable)
Derna	Libya	Record high maximum temperature	34.0 C (93.2 F)	37 of 100 (Notable)
Bloomfield 3 SE	United States	Record high minimum temperature	12.8 C (55.0 F)	36 of 100 (Notable)
Ochoco Rs	United States	Record daily snowfall	8.4 cm (3.3 in)	36 of 100 (Notable)
Nancheng	China	Record daily precipitation	110.1 mm (4.3 in)	35 of 100 (Notable)
Misantla	Mexico	Record low maximum temperature	19.4 C (66.9 F)	35 of 100 (Notable)
Bomnak	Russia	Record low minimum temperature	-15.3 C (4.5 F)	35 of 100 (Notable)
May 2SSE	United States	Record daily snowfall	5.1 cm (2.0 in)	35 of 100 (Notable)
Rupert 3 WSW	United States	Record daily snowfall	5.1 cm (2.0 in)	35 of 100 (Notable)
Stanley	United States	Record daily snowfall	5.1 cm (2.0 in)	35 of 100 (Notable)
Marlow	United States	Record snow depth	35.6 cm (14.0 in)	35 of 100 (Notable)
Mtn Park	United States	Record high minimum temperature	12.2 C (54.0 F)	34 of 100 (Routine)
Dorado 2 WNW	Puerto Rico [United States]	Record high minimum temperature	25.6 C (78.1 F)	33 of 100 (Routine)
Duncan	United States	Record high minimum temperature	15.0 C (59.0 F)	33 of 100 (Routine)
Lima	United States	Record daily snowfall	17.8 cm (7.0 in)	33 of 100 (Routine)
Valle Nacional	Mexico	Record low minimum temperature	8.3 C (46.9 F)	32 of 100 (Routine)
San Simon	United States	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Big Creek Ph 1	United States	Record daily precipitation	30.2 mm (1.2 in)	32 of 100 (Routine)
Middle Dam	United States	Record snow depth	33.0 cm (13.0 in)	32 of 100 (Routine)
Waynesboro 2 W	United States	Record low minimum temperature	1.7 C (35.1 F)	32 of 100 (Routine)
Norsk	Russia	Record low minimum temperature	-12.3 C (9.9 F)	31 of 100 (Routine)
Camp Hill 2NW	United States	Record low minimum temperature	-3.9 C (25.0 F)	31 of 100 (Routine)
Shiprock	United States	Record high minimum temperature	15.0 C (59.0 F)	31 of 100 (Routine)
Ashwood	United States	Record daily precipitation	29.0 mm (1.1 in)	31 of 100 (Routine)
Cygnet Bay	Australia	Record daily precipitation	57.0 mm (2.2 in)	30 of 100 (Routine)
Yichang	China	Record daily precipitation	55.2 mm (2.2 in)	30 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record low maximum temperature	-1.9 C (28.6 F)	30 of 100 (Routine)
Huntley Exp STN	United States	Record high minimum temperature	11.1 C (52.0 F)	30 of 100 (Routine)
Smoky Valley - Carvers	United States	Record daily snowfall	5.1 cm (2.0 in)	30 of 100 (Routine)
Reserve Rs	United States	Record high minimum temperature	10.0 C (50.0 F)	30 of 100 (Routine)
Moruya Heads Pilot Station	Australia	Record low maximum temperature	15.0 C (59.0 F)	29 of 100 (Routine)
Innsbruck	Austria	Record low maximum temperature	4.2 C (39.6 F)	29 of 100 (Routine)
San Juan del Rio	Mexico	Record high minimum temperature	18.9 C (66.0 F)	29 of 100 (Routine)
Dimas	Mexico	Record low maximum temperature	20.6 C (69.1 F)	29 of 100 (Routine)
Portal 4 SW	United States	Record high minimum temperature	15.6 C (60.1 F)	29 of 100 (Routine)
Madison	United States	Record low minimum temperature	3.3 C (37.9 F)	29 of 100 (Routine)
Palatka	United States	Record low minimum temperature	3.9 C (39.0 F)	29 of 100 (Routine)
Fairfield Rs	United States	Record daily snowfall	7.6 cm (3.0 in)	29 of 100 (Routine)

Counts by Type and Timescale

752 records

Records set or tied on 20 April 2001 by type: Highest daily maximum 96, Lowest daily maximum 99, Highest daily minimum 182, Lowest daily minimum 169, Heaviest daily rainfall 145, Heaviest daily snowfall 33, Deepest snow cover 28.

Records on 20 April 2001 by type
Record type	Records
Highest daily maximum	96
Lowest daily maximum	99
Highest daily minimum	182
Lowest daily minimum	169
Heaviest daily rainfall	145
Heaviest daily snowfall	33
Deepest snow cover	28

Records on 20 April 2001 by timescale: all-time 1, monthly 23, daily 728.

How Much Records Were Beaten By

555 broken records

Margins by which the 555 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 420.0. Ties are not counted.

Top 20 by Significance

20 April 2001

Top 20 records on 20 April 2001 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 April 2001	Virginia City, US	monthly snowfall	22.9 cm (9.0 in)	12.7 cm (5.0 in)	110 years	90 of 100 (Exceptional)
20 April 2001	Minden, US	daily rain	27.7 mm (1.1 in)	19.3 mm (0.8 in)	48 years	62 of 100 (Major)
20 April 2001	Hebgen Dam, US	daily rain	34.0 mm (1.3 in)	16.2 mm (0.6 in)	60 years	59 of 100 (Notable)
20 April 2001	Blackleaf, US	daily snowfall	20.3 cm (8.0 in)	12.7 cm (5.0 in)	80 years	52 of 100 (Notable)
20 April 2001	Hebgen Dam, US	daily snowfall	24.1 cm (9.5 in)	8.9 cm (3.5 in)	80 years	51 of 100 (Notable)
20 April 2001	Guanghua, CN	daily rain	46.5 mm (1.8 in)	34.5 mm (1.4 in)	32 years	49 of 100 (Notable)
20 April 2001	Virginia City, US	daily snow depth	22.9 cm (9.0 in)	20.4 cm (8.0 in)	6 years	49 of 100 (Notable)
20 April 2001	Circleville, US	daily low min	-7.2 C (19.0 F)	2.2 C (4.0 F)	96 years	43 of 100 (Notable)
20 April 2001	Marshall, US	daily low min	-5.0 C (23.0 F)	2.2 C (4.0 F)	96 years	42 of 100 (Notable)
20 April 2001	Kimberley Downs, AU	daily rain	46.0 mm (1.8 in)	32.0 mm (1.3 in)	47 years	41 of 100 (Notable)
20 April 2001	Hobart (Ellerslie Road), AU	daily low min	4.1 C (39.4 F)	0.3 C (0.5 F)	102 years	41 of 100 (Notable)
20 April 2001	W Pt, US	daily rain	42.2 mm (1.7 in)	2.1 mm (0.08 in)	100 years	41 of 100 (Notable)
20 April 2001	Toms River, US	daily low min	-6.7 C (19.9 F)	1.7 C (3.1 F)	94 years	41 of 100 (Notable)
20 April 2001	Ashwood, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	55 years	41 of 100 (Notable)
20 April 2001	Puntilla, US	daily low max	-15.0 C (5.0 F)	10.0 C (18.0 F)	40 years	41 of 100 (Notable)
20 April 2001	Stornoway Airport, GB	daily low min	-1.9 C (28.6 F)	0.2 C (0.4 F)	123 years	40 of 100 (Notable)
20 April 2001	Richfield, US	daily high max	32.8 C (91.0 F)	0.6 C (1.1 F)	105 years	40 of 100 (Notable)
20 April 2001	Evergreen, US	daily low min	2.2 C (36.0 F)	1.1 C (2.0 F)	91 years	39 of 100 (Notable)
20 April 2001	Calaveras Big Trees, US	daily rain	69.9 mm (2.8 in)	26.7 mm (1.1 in)	56 years	39 of 100 (Notable)
20 April 2001	Hazelton, US	daily snowfall	5.1 cm (2.0 in)	4.6 cm (1.8 in)	72 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

1807 to 2001

Records set or tied on this calendar date in each year from 1807 to 2001. 2001 had 752 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 2001-04-20: 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).

Margin	Records
0 to 100	544
100 to 200	7
200 to 300	2
300 to 400	1
400 to 500	1