Weather Records on 17 April 2021

701 weather records were set or tied worldwide on 17 April 2021. Highest significance: Loa, US.

Key Facts for 17 April 2021

On 17 April 2021, 701 weather records were set or tied at long-record stations worldwide.
209 were record highs and 331 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 697 daily.
Loa set a daily record snowfall of 7.6 cm (3.0 in) on 17 April 2021.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 451 records.

Record Map

701 stations

701 station records on 17 April 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Loa	United States	Record daily snowfall	7.6 cm (3.0 in)	55 of 100 (Notable)
Tsu	Japan	Record daily precipitation	68.1 mm (2.7 in)	51 of 100 (Notable)
Port Blair	India	Record daily precipitation	58.9 mm (2.3 in)	50 of 100 (Notable)
Saguache	United States	Record snow depth	12.7 cm (5.0 in)	50 of 100 (Notable)
Irako	Japan	Record daily precipitation	87.9 mm (3.5 in)	47 of 100 (Notable)
Minden	United States	Record low maximum temperature	13.3 C (55.9 F)	45 of 100 (Notable)
Mt Pleasant	United States	Record low maximum temperature	13.3 C (55.9 F)	45 of 100 (Notable)
Mtn Home 1 NNW	United States	Record low maximum temperature	10.6 C (51.1 F)	44 of 100 (Notable)
Manassa	United States	Record low maximum temperature	-1.1 C (30.0 F)	44 of 100 (Notable)
Lincoln 1 SE	United States	Record low maximum temperature	5.6 C (42.1 F)	44 of 100 (Notable)
Malvern	United States	Record low maximum temperature	13.9 C (57.0 F)	43 of 100 (Notable)
Mena	United States	Record low maximum temperature	11.1 C (52.0 F)	43 of 100 (Notable)
Elma	United States	Record high maximum temperature	28.9 C (84.0 F)	43 of 100 (Notable)
Juneau AP	United States	Record high maximum temperature	21.1 C (70.0 F)	43 of 100 (Notable)
Nikko	Japan	Record daily precipitation	73.9 mm (2.9 in)	42 of 100 (Notable)
Westcliffe	United States	Record low maximum temperature	-0.6 C (30.9 F)	42 of 100 (Notable)
Jefferson	United States	Record low maximum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
Coramba (Glenfiddich)	Australia	Record daily precipitation	115.6 mm (4.6 in)	41 of 100 (Notable)
Inverness 3 SE	United States	Record high minimum temperature	21.1 C (70.0 F)	41 of 100 (Notable)
Middleboro	United States	Record low maximum temperature	5.0 C (41.0 F)	41 of 100 (Notable)
Hachita 1W	United States	Record high minimum temperature	16.1 C (61.0 F)	41 of 100 (Notable)
Ft Myers Page Fld AP	United States	Record high minimum temperature	22.2 C (72.0 F)	41 of 100 (Notable)
Salem AP (McNary Field)	United States	Record high maximum temperature	29.4 C (84.9 F)	41 of 100 (Notable)
Benghazi Benina	Libya	Record high maximum temperature	40.1 C (104.2 F)	40 of 100 (Notable)
Beloit	United States	Record low maximum temperature	5.6 C (42.1 F)	40 of 100 (Notable)
Ellsworth	United States	Record low maximum temperature	5.0 C (41.0 F)	40 of 100 (Notable)
Minneapolis	United States	Record low maximum temperature	5.6 C (42.1 F)	40 of 100 (Notable)
Newton	United States	Record low maximum temperature	6.7 C (44.1 F)	40 of 100 (Notable)
Tribune 1W	United States	Record low maximum temperature	5.0 C (41.0 F)	40 of 100 (Notable)
Homer 1N	United States	Record low maximum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Logansport	United States	Record daily precipitation	63.0 mm (2.5 in)	40 of 100 (Notable)
Pearsall	United States	Record low maximum temperature	19.4 C (66.9 F)	40 of 100 (Notable)
Shionomisaki	Japan	Record daily precipitation	115.1 mm (4.5 in)	39 of 100 (Notable)
Nakhon Si Thammarat	Thailand	Record daily precipitation	83.8 mm (3.3 in)	39 of 100 (Notable)
Palacios Muni AP	United States	Record low maximum temperature	18.3 C (64.9 F)	39 of 100 (Notable)
Elkhart	United States	Record low maximum temperature	6.7 C (44.1 F)	38 of 100 (Notable)
Middleton	United States	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Fordyce	United States	Record low maximum temperature	13.9 C (57.0 F)	37 of 100 (Notable)
Antlers	United States	Record low maximum temperature	11.7 C (53.1 F)	37 of 100 (Notable)
Eugene-Mahlon Sweet Fld	United States	Record high maximum temperature	28.3 C (82.9 F)	37 of 100 (Notable)
Nashville	United States	Record low maximum temperature	13.3 C (55.9 F)	36 of 100 (Notable)
Holly	United States	Record low maximum temperature	6.1 C (43.0 F)	36 of 100 (Notable)
Storrs	United States	Record low maximum temperature	2.8 C (37.0 F)	36 of 100 (Notable)
Lakin	United States	Record low maximum temperature	6.7 C (44.1 F)	36 of 100 (Notable)
Ashburnham	United States	Record daily snowfall	8.9 cm (3.5 in)	36 of 100 (Notable)
Keene	United States	Record low maximum temperature	2.2 C (36.0 F)	36 of 100 (Notable)
Houston William P Hobby AP	United States	Record low maximum temperature	18.9 C (66.0 F)	36 of 100 (Notable)
Corpus Christi	United States	Record low maximum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Nara	Japan	Record daily precipitation	50.0 mm (2.0 in)	35 of 100 (Notable)
Skjak II	Norway	Record snow depth	11.0 cm (4.3 in)	35 of 100 (Notable)
Ashdown 4 SSE	United States	Record low maximum temperature	12.8 C (55.0 F)	35 of 100 (Notable)
Liberal	United States	Record low maximum temperature	5.0 C (41.0 F)	35 of 100 (Notable)
Minden	United States	Record daily precipitation	32.0 mm (1.3 in)	35 of 100 (Notable)
Follett	United States	Record low maximum temperature	6.7 C (44.1 F)	35 of 100 (Notable)
Rio Grande City	United States	Record daily precipitation	50.8 mm (2.0 in)	35 of 100 (Notable)
Glen Morrison (Branga Plains)	Australia	Record daily precipitation	38.0 mm (1.5 in)	34 of 100 (Routine)
Brest-Guipavas	France	Record low minimum temperature	-1.3 C (29.7 F)	34 of 100 (Routine)
Japura	Indonesia	Record low maximum temperature	25.8 C (78.4 F)	34 of 100 (Routine)
El Dorado	United States	Record low maximum temperature	7.2 C (45.0 F)	34 of 100 (Routine)
Syracuse 1NE	United States	Record low maximum temperature	6.7 C (44.1 F)	34 of 100 (Routine)

Counts by Type and Timescale

701 records

Records set or tied on 17 April 2021 by type: Highest daily maximum 137, Lowest daily maximum 262, Highest daily minimum 72, Lowest daily minimum 69, Heaviest daily rainfall 117, Heaviest daily snowfall 18, Deepest snow cover 26.

Records on 17 April 2021 by type
Record type	Records
Highest daily maximum	137
Lowest daily maximum	262
Highest daily minimum	72
Lowest daily minimum	69
Heaviest daily rainfall	117
Heaviest daily snowfall	18
Deepest snow cover	26

Records on 17 April 2021 by timescale: all-time 0, monthly 4, daily 697.

How Much Records Were Beaten By

601 broken records

Margins by which the 601 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 153.0. Ties are not counted.

Top 20 by Significance

17 April 2021

Top 20 records on 17 April 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 2021	Loa, US	daily snowfall	7.6 cm (3.0 in)	6.3 cm (2.5 in)	124 years	55 of 100 (Notable)
17 April 2021	Tsu, JP	daily rain	68.1 mm (2.7 in)	39.0 mm (1.5 in)	63 years	51 of 100 (Notable)
17 April 2021	Port Blair, IN	daily rain	58.9 mm (2.3 in)	37.1 mm (1.5 in)	64 years	50 of 100 (Notable)
17 April 2021	Saguache, US	daily snow depth	12.7 cm (5.0 in)	5.1 cm (2.0 in)	96 years	50 of 100 (Notable)
17 April 2021	Irako, JP	daily rain	87.9 mm (3.5 in)	29.6 mm (1.2 in)	67 years	47 of 100 (Notable)
17 April 2021	Minden, US	daily low max	13.3 C (55.9 F)	2.3 C (4.1 F)	100 years	45 of 100 (Notable)
17 April 2021	Mt Pleasant, US	daily low max	13.3 C (55.9 F)	2.3 C (4.1 F)	100 years	45 of 100 (Notable)
17 April 2021	Mtn Home 1 NNW, US	daily low max	10.6 C (51.1 F)	2.2 C (4.0 F)	100 years	44 of 100 (Notable)
17 April 2021	Manassa, US	daily low max	-1.1 C (30.0 F)	2.8 C (5.0 F)	96 years	44 of 100 (Notable)
17 April 2021	Lincoln 1 SE, US	daily low max	5.6 C (42.1 F)	2.7 C (4.9 F)	108 years	44 of 100 (Notable)
17 April 2021	Malvern, US	daily low max	13.9 C (57.0 F)	1.7 C (3.1 F)	114 years	43 of 100 (Notable)
17 April 2021	Mena, US	daily low max	11.1 C (52.0 F)	1.7 C (3.1 F)	100 years	43 of 100 (Notable)
17 April 2021	Elma, US	daily high max	28.9 C (84.0 F)	1.7 C (3.1 F)	123 years	43 of 100 (Notable)
17 April 2021	Juneau AP, US	daily high max	21.1 C (70.0 F)	5.5 C (9.9 F)	68 years	43 of 100 (Notable)
17 April 2021	Nikko, JP	daily rain	73.9 mm (2.9 in)	33.4 mm (1.3 in)	52 years	42 of 100 (Notable)
17 April 2021	Westcliffe, US	daily low max	-0.6 C (30.9 F)	1.7 C (3.1 F)	99 years	42 of 100 (Notable)
17 April 2021	Jefferson, US	daily low max	13.3 C (55.9 F)	1.1 C (2.0 F)	116 years	42 of 100 (Notable)
17 April 2021	Coramba (Glenfiddich), AU	daily rain	115.6 mm (4.6 in)	80.4 mm (3.2 in)	11 years	41 of 100 (Notable)
17 April 2021	Inverness 3 SE, US	daily high min	21.1 C (70.0 F)	0.5 C (0.9 F)	111 years	41 of 100 (Notable)
17 April 2021	Middleboro, US	daily low max	5.0 C (41.0 F)	0.6 C (1.1 F)	127 years	41 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

1799 to 2021

Records set or tied on this calendar date in each year from 1799 to 2021. 2021 had 701 records.

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

Records on 04-17 in each year
Year	Records
1799	1
1807	1
1808	1
1815	1
1817	1
1818	1
1819	1
1823	1
1825	1
1830	1
1835	3
1837	1
1845	1
1847	2
1851	1
1852	3
1853	1
1854	1
1855	1
1857	1
1858	1
1862	1
1865	2
1868	1
1873	4
1874	1
1875	3
1877	4
1878	2
1880	2
1889	1
1890	2
1891	2
1892	4
1894	5
1895	1
1896	5
1897	6
1898	3
1899	1
1900	2
1901	4
1902	4
1903	5
1904	19
1905	11
1906	14
1907	16
1908	38
1909	7
1910	29
1911	33
1912	27
1913	20
1914	83
1915	30
1916	30
1917	32
1918	35
1919	39
1920	87
1921	148
1922	96
1923	71
1924	74
1925	103
1926	140
1927	256
1928	308
1929	145
1930	238
1931	216
1932	615
1933	261
1934	234
1935	374
1936	308
1937	439
1938	564
1939	618
1940	337
1941	460
1942	415
1943	285
1944	334
1945	475
1946	492
1947	461
1948	622
1949	439
1950	293
1951	441
1952	529
1953	818
1954	650
1955	394
1956	486
1957	277
1958	702
1959	434
1960	553
1961	667
1962	597
1963	702
1964	766
1965	411
1966	409
1967	935
1968	745
1969	728
1970	547
1971	924
1972	546
1973	589
1974	244
1975	666
1976	1,630
1977	906
1978	620
1979	810
1980	675
1981	621
1982	965
1983	1,365
1984	720
1985	917
1986	997
1987	960
1988	1,082
1989	638
1990	1,065
1991	614
1992	1,105
1993	847
1994	1,047
1995	1,211
1996	1,044
1997	889
1998	1,795
1999	1,730
2000	1,082
2001	1,013
2002	2,284
2003	1,037
2004	761
2005	572
2006	1,430
2007	863
2008	842
2009	779
2010	606
2011	982
2012	920
2013	1,796
2014	913
2015	813
2016	977
2017	469
2018	1,585
2019	458
2020	1,165
2021	701
2022	831
2023	628
2024	690
2025	1,058
2026	838

Download the Data

Data for records on 2021-04-17: 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 20	551
20 to 40	31
40 to 60	9
60 to 80	6
80 to 100	3
100 to 120	0
120 to 140	0
140 to 160	1