Weather Records on 21 April 2011

1,053 weather records were set or tied worldwide on 21 April 2011. Highest significance: Prescott 2 NNW, US.

Key Facts for 21 April 2011

On 21 April 2011, 1,053 weather records were set or tied at long-record stations worldwide.
567 were record highs and 194 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 45 monthly and 1,007 daily.
Prescott 2 NNW set a daily record precipitation of 131.3 mm (5.2 in) on 21 April 2011.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 459 records.

Record Map

1,053 stations

1,053 station records on 21 April 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Prescott 2 NNW	United States	Record daily precipitation	131.3 mm (5.2 in)	76 of 100 (Major)
Hope 3 NE	United States	Record daily precipitation	110.2 mm (4.3 in)	65 of 100 (Major)
Ft Kent	United States	Record daily snowfall	20.3 cm (8.0 in)	65 of 100 (Major)
M.O. Amini	India	Record daily precipitation	57.9 mm (2.3 in)	62 of 100 (Major)
Toledo	Spain	Record daily precipitation	52.3 mm (2.1 in)	61 of 100 (Major)
Appleton	United States	Record snow depth	12.7 cm (5.0 in)	60 of 100 (Major)
Dierks	United States	Record daily precipitation	109.0 mm (4.3 in)	58 of 100 (Notable)
Stornoway Airport	United Kingdom	Record high maximum temperature	20.2 C (68.4 F)	56 of 100 (Notable)
Leola	United States	Record daily precipitation	123.7 mm (4.9 in)	56 of 100 (Notable)
Van Buren 2	United States	Record daily snowfall	17.8 cm (7.0 in)	56 of 100 (Notable)
Amity	United States	Record daily precipitation	70.9 mm (2.8 in)	55 of 100 (Notable)
Etla	Mexico	Record daily precipitation	25.9 mm (1.0 in)	54 of 100 (Notable)
Molina de Aragon	Spain	Record daily precipitation	43.1 mm (1.7 in)	54 of 100 (Notable)
Sparkman	United States	Record daily precipitation	82.5 mm (3.2 in)	52 of 100 (Notable)
Guntersville	United States	Record daily precipitation	71.1 mm (2.8 in)	50 of 100 (Notable)
Camden 1	United States	Record daily precipitation	72.6 mm (2.9 in)	49 of 100 (Notable)
Darrington Rs	United States	Record daily snowfall	5.1 cm (2.0 in)	49 of 100 (Notable)
Nashville	United States	Record daily precipitation	94.5 mm (3.7 in)	48 of 100 (Notable)
Copper Camp	United States	Record daily precipitation	35.6 mm (1.4 in)	48 of 100 (Notable)
Lisboa Geofisica	Portugal	Record daily precipitation	42.8 mm (1.7 in)	47 of 100 (Notable)
Antoine 1 SW	United States	Record daily precipitation	71.4 mm (2.8 in)	47 of 100 (Notable)
Ludington 4 SE	United States	Record low maximum temperature	-7.2 C (19.0 F)	47 of 100 (Notable)
Oxford	United Kingdom	Record high maximum temperature	25.3 C (77.5 F)	46 of 100 (Notable)
Pendra Road	India	Record daily precipitation	35.1 mm (1.4 in)	45 of 100 (Notable)
Hopper	United States	Record daily precipitation	82.0 mm (3.2 in)	45 of 100 (Notable)
Cet Central England	United Kingdom	Record high maximum temperature	23.4 C (74.1 F)	44 of 100 (Notable)
Newton Rigg	United Kingdom	Record high maximum temperature	21.0 C (69.8 F)	44 of 100 (Notable)
Monroe Rgnl AP	United States	Record daily precipitation	88.9 mm (3.5 in)	44 of 100 (Notable)
Tyler Pounds Fld	United States	Record high maximum temperature	32.8 C (91.0 F)	44 of 100 (Notable)
Bradford	United Kingdom	Record high maximum temperature	21.7 C (71.1 F)	42 of 100 (Notable)
Langley	United States	Record daily precipitation	94.0 mm (3.7 in)	42 of 100 (Notable)
Charlevoix	United States	Record low maximum temperature	1.7 C (35.1 F)	42 of 100 (Notable)
Crystal Lake	United States	Record daily precipitation	45.7 mm (1.8 in)	42 of 100 (Notable)
Tuba City	United States	Record high minimum temperature	12.2 C (54.0 F)	41 of 100 (Notable)
Glenwood 4 NNE	United States	Record daily precipitation	67.3 mm (2.6 in)	41 of 100 (Notable)
Gaylord	United States	Record low maximum temperature	0.6 C (33.1 F)	41 of 100 (Notable)
Lewistown 11 SSE	United States	Record daily precipitation	29.5 mm (1.2 in)	41 of 100 (Notable)
Virginia City	United States	Record daily snowfall	12.7 cm (5.0 in)	41 of 100 (Notable)
Hallettsville 2 N	United States	Record high minimum temperature	22.8 C (73.0 F)	41 of 100 (Notable)
Hondo	United States	Record high minimum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Mangalore/Bajpe	India	Record daily precipitation	40.9 mm (1.6 in)	40 of 100 (Notable)
Kokpekty	Kazakhstan	Record high maximum temperature	26.0 C (78.8 F)	40 of 100 (Notable)
Navacerrada	Spain	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Alicante El Altet	Spain	Record daily precipitation	30.0 mm (1.2 in)	40 of 100 (Notable)
Stockholm	Sweden	Record high maximum temperature	20.1 C (68.2 F)	40 of 100 (Notable)
Armagh	United Kingdom	Record high maximum temperature	21.6 C (70.9 F)	40 of 100 (Notable)
Auchincruive	United Kingdom	Record high maximum temperature	22.8 C (73.0 F)	40 of 100 (Notable)
Buxton	United Kingdom	Record high maximum temperature	21.2 C (70.2 F)	40 of 100 (Notable)
Crescent City	United States	Record daily precipitation	31.0 mm (1.2 in)	40 of 100 (Notable)
W Lafayette 6 NW	United States	Record low minimum temperature	-4.4 C (24.1 F)	40 of 100 (Notable)
Lancaster	United States	Record daily precipitation	25.7 mm (1.0 in)	40 of 100 (Notable)
Fredericksburg	United States	Record high minimum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Rantoul	United States	Record low maximum temperature	7.2 C (45.0 F)	40 of 100 (Notable)
Colmenar Viejo/Famet	Spain	Record daily precipitation	32.5 mm (1.3 in)	39 of 100 (Notable)
Vanersborg	Sweden	Record high maximum temperature	20.4 C (68.7 F)	39 of 100 (Notable)
Murfreesboro 1W	United States	Record daily precipitation	81.3 mm (3.2 in)	39 of 100 (Notable)
Ft Bidwell	United States	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Leon Virgen del Camino	Spain	Record daily precipitation	30.2 mm (1.2 in)	38 of 100 (Notable)
Bishop	United States	Record high minimum temperature	24.4 C (75.9 F)	38 of 100 (Notable)
Dikson	Russia	Record high minimum temperature	0.9 C (33.6 F)	37 of 100 (Notable)

Counts by Type and Timescale

1,053 records

Records set or tied on 21 April 2011 by type: Highest daily maximum 302, Lowest daily maximum 137, Highest daily minimum 265, Lowest daily minimum 57, Heaviest daily rainfall 216, Heaviest daily snowfall 31, Deepest snow cover 45.

Records on 21 April 2011 by type
Record type	Records
Highest daily maximum	302
Lowest daily maximum	137
Highest daily minimum	265
Lowest daily minimum	57
Heaviest daily rainfall	216
Heaviest daily snowfall	31
Deepest snow cover	45

Records on 21 April 2011 by timescale: all-time 1, monthly 45, daily 1,007.

How Much Records Were Beaten By

779 broken records

Margins by which the 779 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

21 April 2011

Top 20 records on 21 April 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 2011	Prescott 2 NNW, US	daily rain	131.3 mm (5.2 in)	98.3 mm (3.9 in)	89 years	76 of 100 (Major)
21 April 2011	Hope 3 NE, US	daily rain	110.2 mm (4.3 in)	59.4 mm (2.3 in)	84 years	65 of 100 (Major)
21 April 2011	Ft Kent, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	82 years	65 of 100 (Major)
21 April 2011	M.O. Amini, IN	daily rain	57.9 mm (2.3 in)	51.9 mm (2.0 in)	44 years	62 of 100 (Major)
21 April 2011	Toledo, ES	monthly rain	52.3 mm (2.1 in)	22.3 mm (0.9 in)	29 years	61 of 100 (Major)
21 April 2011	Appleton, US	daily snow depth	12.7 cm (5.0 in)	12.7 cm (5.0 in)	109 years	60 of 100 (Major)
21 April 2011	Dierks, US	daily rain	109.0 mm (4.3 in)	84.1 mm (3.3 in)	44 years	58 of 100 (Notable)
21 April 2011	Stornoway Airport, GB	daily high max	20.2 C (68.4 F)	4.1 C (7.4 F)	96 years	56 of 100 (Notable)
21 April 2011	Leola, US	daily rain	123.7 mm (4.9 in)	89.7 mm (3.5 in)	34 years	56 of 100 (Notable)
21 April 2011	Van Buren 2, US	daily snowfall	17.8 cm (7.0 in)	17.8 cm (7.0 in)	46 years	56 of 100 (Notable)
21 April 2011	Amity, US	daily rain	70.9 mm (2.8 in)	29.5 mm (1.2 in)	111 years	55 of 100 (Notable)
21 April 2011	Etla, MX	daily rain	25.9 mm (1.0 in)	21.1 mm (0.8 in)	80 years	54 of 100 (Notable)
21 April 2011	Molina de Aragon, ES	daily rain	43.1 mm (1.7 in)	23.2 mm (0.9 in)	29 years	54 of 100 (Notable)
21 April 2011	Sparkman, US	daily rain	82.5 mm (3.2 in)	62.4 mm (2.5 in)	60 years	52 of 100 (Notable)
21 April 2011	Guntersville, US	daily rain	71.1 mm (2.8 in)	22.1 mm (0.9 in)	90 years	50 of 100 (Notable)
21 April 2011	Camden 1, US	daily rain	72.6 mm (2.9 in)	26.9 mm (1.1 in)	84 years	49 of 100 (Notable)
21 April 2011	Darrington Rs, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	98 years	49 of 100 (Notable)
21 April 2011	Nashville, US	daily rain	94.5 mm (3.7 in)	25.9 mm (1.0 in)	82 years	48 of 100 (Notable)
21 April 2011	Copper Camp, US	daily rain	35.6 mm (1.4 in)	25.4 mm (1.0 in)	16 years	48 of 100 (Notable)
21 April 2011	Lisboa Geofisica, PT	daily rain	42.8 mm (1.7 in)	24.3 mm (1.0 in)	28 years	47 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 2011

Records set or tied on this calendar date in each year from 1793 to 2011. 2011 had 1,053 records.

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

Records on 04-21 in each year
Year	Records
1793	1
1814	1
1820	1
1838	1
1849	2
1851	1
1852	3
1854	1
1858	3
1861	2
1865	3
1866	1
1868	1
1870	1
1875	4
1876	2
1877	1
1879	3
1880	1
1881	1
1882	1
1884	1
1885	2
1888	1
1890	1
1891	1
1892	1
1893	2
1894	4
1895	1
1897	1
1898	2
1899	2
1900	7
1901	17
1902	7
1903	3
1904	10
1905	18
1906	5
1907	17
1908	25
1909	20
1910	33
1911	9
1912	22
1913	14
1914	220
1915	24
1916	64
1917	48
1918	84
1919	31
1920	85
1921	59
1922	70
1923	223
1924	119
1925	295
1926	148
1927	284
1928	269
1929	193
1930	127
1931	358
1932	304
1933	201
1934	497
1935	266
1936	277
1937	416
1938	295
1939	110
1940	462
1941	306
1942	285
1943	481
1944	261
1945	367
1946	448
1947	459
1948	365
1949	448
1950	529
1951	884
1952	665
1953	640
1954	527
1955	607
1956	497
1957	824
1958	329
1959	505
1960	889
1961	647
1962	319
1963	778
1964	1,125
1965	658
1966	756
1967	903
1968	655
1969	388
1970	728
1971	546
1972	593
1973	1,163
1974	528
1975	360
1976	452
1977	854
1978	735
1979	449
1980	1,934
1981	944
1982	1,075
1983	1,366
1984	1,231
1985	1,245
1986	977
1987	1,290
1988	898
1989	1,557
1990	1,463
1991	1,291
1992	1,763
1993	847
1994	859
1995	1,476
1996	788
1997	964
1998	876
1999	752
2000	921
2001	967
2002	1,312
2003	607
2004	586
2005	693
2006	761
2007	480
2008	1,327
2009	983
2010	805
2011	1,053
2012	687
2013	1,015
2014	393
2015	621
2016	587
2017	797
2018	862
2019	731
2020	397
2021	1,608
2022	433
2023	886
2024	754
2025	506
2026	853

Download the Data

Data for records on 2011-04-21: 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 2026-10-13 (13 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 50	744
50 to 100	29
100 to 150	4
150 to 200	1
200 to 250	1