Weather Records on 21 April 1981

944 weather records were set or tied worldwide on 21 April 1981. Highest significance: Jerome, US.

Key Facts for 21 April 1981

On 21 April 1981, 944 weather records were set or tied at long-record stations worldwide.
219 were record highs and 507 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 14 monthly and 929 daily.
Jerome set a monthly record daily precipitation of 41.4 mm (1.6 in) on 21 April 1981.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 459 records.

Record Map

944 stations

944 station records on 21 April 1981 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1981: highest significance records shown on the map
Station	Country	Type	Value	Significance
Jerome	United States	Record daily precipitation	41.4 mm (1.6 in)	56 of 100 (Notable)
Moran 5WNW	United States	Record daily precipitation	26.2 mm (1.0 in)	54 of 100 (Notable)
El Tintero	Mexico	Record daily precipitation	26.9 mm (1.1 in)	52 of 100 (Notable)
Vancouver Harbour CS	Canada	Record daily precipitation	39.1 mm (1.5 in)	51 of 100 (Notable)
Roscoe	United States	Record daily precipitation	52.6 mm (2.1 in)	46 of 100 (Notable)
Salinillas	Mexico	Record daily precipitation	39.9 mm (1.6 in)	45 of 100 (Notable)
Lampazos (Smn)	Mexico	Record daily precipitation	26.9 mm (1.1 in)	44 of 100 (Notable)
Jersey City	United States	Record low minimum temperature	-6.7 C (19.9 F)	44 of 100 (Notable)
Woodstock	Canada	Record low minimum temperature	-9.5 C (14.9 F)	43 of 100 (Notable)
Baddeck	Canada	Record daily snowfall	21.0 cm (8.3 in)	43 of 100 (Notable)
Port Stanley	Canada	Record low minimum temperature	-7.0 C (19.4 F)	42 of 100 (Notable)
Marquette	United States	Record low minimum temperature	-7.2 C (19.0 F)	42 of 100 (Notable)
Midville	United States	Record daily precipitation	38.9 mm (1.5 in)	40 of 100 (Notable)
Ridgetown	Canada	Record low minimum temperature	-7.0 C (19.4 F)	39 of 100 (Notable)
Tortosa - Observatorio del Ebr	Spain	Record low maximum temperature	10.2 C (50.4 F)	39 of 100 (Notable)
Sheffield	United Kingdom	Record low maximum temperature	4.5 C (40.1 F)	39 of 100 (Notable)
Palisades	United States	Record daily precipitation	32.3 mm (1.3 in)	39 of 100 (Notable)
Gail	United States	Record daily precipitation	37.1 mm (1.5 in)	38 of 100 (Notable)
Booby Island Lighthouse	Australia	Record daily precipitation	50.0 mm (2.0 in)	37 of 100 (Notable)
Metapa de Dominguez	Mexico	Record daily precipitation	73.9 mm (2.9 in)	37 of 100 (Notable)
Brooksville Chin Hill	United States	Record high minimum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Sydney A	Canada	Record daily snowfall	15.0 cm (5.9 in)	36 of 100 (Notable)
Franklinville	United States	Record low minimum temperature	-8.9 C (16.0 F)	36 of 100 (Notable)
Plattsburgh AFB	United States	Record low maximum temperature	2.8 C (37.0 F)	36 of 100 (Notable)
Pelee Island	Canada	Record low minimum temperature	-3.0 C (26.6 F)	35 of 100 (Notable)
Frontera Hidalgo	Mexico	Record daily precipitation	68.1 mm (2.7 in)	35 of 100 (Notable)
Moorestown 4 E	United States	Record low minimum temperature	-3.9 C (25.0 F)	35 of 100 (Notable)
Plauen	Germany	Record low minimum temperature	-4.8 C (23.4 F)	34 of 100 (Routine)
Suchiate	Mexico	Record daily precipitation	79.8 mm (3.1 in)	34 of 100 (Routine)
Angelica	United States	Record low minimum temperature	-10.6 C (12.9 F)	34 of 100 (Routine)
Five Finger Lt STN	United States	Record daily precipitation	25.7 mm (1.0 in)	34 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record low minimum temperature	-8.9 C (16.0 F)	34 of 100 (Routine)
Albacete Los Llanos	Spain	Record low maximum temperature	7.8 C (46.0 F)	33 of 100 (Routine)
Valencia	Spain	Record daily precipitation	51.2 mm (2.0 in)	33 of 100 (Routine)
Harbor Beach 1 SSE	United States	Record low maximum temperature	2.2 C (36.0 F)	33 of 100 (Routine)
Harbor Beach 1 SSE	United States	Record low minimum temperature	-6.7 C (19.9 F)	33 of 100 (Routine)
Bolivar	United States	Record low minimum temperature	-9.4 C (15.1 F)	33 of 100 (Routine)
Barguzin	Russia	Record high minimum temperature	4.1 C (39.4 F)	32 of 100 (Routine)
La Grange 1N	United States	Record daily precipitation	36.1 mm (1.4 in)	32 of 100 (Routine)
Saint Johns	United States	Record low minimum temperature	-6.1 C (21.0 F)	32 of 100 (Routine)
Ogdensburg 4 NE	United States	Record low minimum temperature	-7.2 C (19.0 F)	32 of 100 (Routine)
Old Forge	United States	Record low maximum temperature	-1.1 C (30.0 F)	32 of 100 (Routine)
Westfield 2 SSE	United States	Record low minimum temperature	-5.6 C (21.9 F)	32 of 100 (Routine)
Derry 4 SW	United States	Record low minimum temperature	-9.4 C (15.1 F)	32 of 100 (Routine)
Stratford	United States	Record high minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Sugar Land	United States	Record high maximum temperature	33.3 C (91.9 F)	32 of 100 (Routine)
Merredin Research Station	Australia	Record high maximum temperature	35.7 C (96.3 F)	31 of 100 (Routine)
Northam	Australia	Record high maximum temperature	36.0 C (96.8 F)	31 of 100 (Routine)
Port Hope	Canada	Record low minimum temperature	-4.5 C (23.9 F)	31 of 100 (Routine)
Bratsk	Russia	Record high minimum temperature	3.9 C (39.0 F)	31 of 100 (Routine)
Santa Juliana	Brazil	Record daily precipitation	56.6 mm (2.2 in)	30 of 100 (Routine)
Fran?A	Brazil	Record daily precipitation	30.0 mm (1.2 in)	30 of 100 (Routine)
Virden	Canada	Record high minimum temperature	8.5 C (47.3 F)	30 of 100 (Routine)
Irkutsk	Russia	Record high minimum temperature	6.4 C (43.5 F)	30 of 100 (Routine)
Nerchinskij Zavod	Russia	Record high minimum temperature	8.3 C (46.9 F)	30 of 100 (Routine)
Kara-Tjurek	Russia	Record daily precipitation	25.6 mm (1.0 in)	30 of 100 (Routine)
Alfred	United States	Record low minimum temperature	-8.3 C (17.1 F)	30 of 100 (Routine)
Lowville	United States	Record low maximum temperature	0.6 C (33.1 F)	30 of 100 (Routine)
Georgetown 2 E	United States	Record daily precipitation	38.4 mm (1.5 in)	30 of 100 (Routine)
Parr	United States	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)

Counts by Type and Timescale

944 records

Records set or tied on 21 April 1981 by type: Highest daily maximum 84, Lowest daily maximum 208, Highest daily minimum 135, Lowest daily minimum 299, Heaviest daily rainfall 201, Heaviest daily snowfall 16, Deepest snow cover 1.

Records on 21 April 1981 by type
Record type	Records
Highest daily maximum	84
Lowest daily maximum	208
Highest daily minimum	135
Lowest daily minimum	299
Heaviest daily rainfall	201
Heaviest daily snowfall	16
Deepest snow cover	1

Records on 21 April 1981 by timescale: all-time 1, monthly 14, daily 929.

How Much Records Were Beaten By

757 broken records

Margins by which the 757 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 197.0. Ties are not counted.

Top 20 by Significance

21 April 1981

Top 20 records on 21 April 1981 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1981	Jerome, US	monthly rain	41.4 mm (1.6 in)	13.5 mm (0.5 in)	17 years	56 of 100 (Notable)
21 April 1981	Moran 5WNW, US	daily rain	26.2 mm (1.0 in)	13.0 mm (0.5 in)	66 years	54 of 100 (Notable)
21 April 1981	El Tintero, MX	daily rain	26.9 mm (1.1 in)	26.9 mm (1.1 in)	32 years	52 of 100 (Notable)
21 April 1981	Vancouver Harbour CS, CA	daily rain	39.1 mm (1.5 in)	22.6 mm (0.9 in)	55 years	51 of 100 (Notable)
21 April 1981	Roscoe, US	daily rain	52.6 mm (2.1 in)	38.9 mm (1.5 in)	44 years	46 of 100 (Notable)
21 April 1981	Salinillas, MX	daily rain	39.9 mm (1.6 in)	35.1 mm (1.4 in)	35 years	45 of 100 (Notable)
21 April 1981	Lampazos (Smn), MX	daily rain	26.9 mm (1.1 in)	26.1 mm (1.0 in)	46 years	44 of 100 (Notable)
21 April 1981	Jersey City, US	daily low min	-6.7 C (19.9 F)	6.1 C (11.0 F)	74 years	44 of 100 (Notable)
21 April 1981	Woodstock, CA	daily low min	-9.5 C (14.9 F)	1.7 C (3.1 F)	105 years	43 of 100 (Notable)
21 April 1981	Baddeck, CA	daily snowfall	21.0 cm (8.3 in)	19.7 cm (7.8 in)	6 years	43 of 100 (Notable)
21 April 1981	Port Stanley, CA	daily low min	-7.0 C (19.4 F)	0.9 C (1.6 F)	105 years	42 of 100 (Notable)
21 April 1981	Marquette, US	daily low min	-7.2 C (19.0 F)	2.4 C (4.3 F)	92 years	42 of 100 (Notable)
21 April 1981	Midville, US	daily rain	38.9 mm (1.5 in)	30.8 mm (1.2 in)	46 years	40 of 100 (Notable)
21 April 1981	Ridgetown, CA	daily low min	-7.0 C (19.4 F)	2.6 C (4.7 F)	83 years	39 of 100 (Notable)
21 April 1981	Tortosa - Observatorio del Ebr, ES	daily low max	10.2 C (50.4 F)	3.8 C (6.8 F)	75 years	39 of 100 (Notable)
21 April 1981	Sheffield, GB	daily low max	4.5 C (40.1 F)	0.9 C (1.6 F)	92 years	39 of 100 (Notable)
21 April 1981	Palisades, US	monthly rain	32.3 mm (1.3 in)	9.9 mm (0.39 in)	0 years	39 of 100 (Notable)
21 April 1981	Gail, US	daily rain	37.1 mm (1.5 in)	13.0 mm (0.5 in)	68 years	38 of 100 (Notable)
21 April 1981	Booby Island Lighthouse, AU	daily rain	50.0 mm (2.0 in)	16.7 mm (0.7 in)	70 years	37 of 100 (Notable)
21 April 1981	Metapa de Dominguez, MX	daily rain	73.9 mm (2.9 in)	57.1 mm (2.2 in)	15 years	37 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 1981

Records set or tied on this calendar date in each year from 1793 to 1981. 1981 had 944 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 1981-04-21: 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 25	739
25 to 50	12
50 to 75	4
75 to 100	0
100 to 125	0
125 to 150	1
150 to 175	0
175 to 200	1