Weather Records on 15 April 2021

494 weather records were set or tied worldwide on 15 April 2021. Highest significance: Riverton, US.

Key Facts for 15 April 2021

On 15 April 2021, 494 weather records were set or tied at long-record stations worldwide.
127 were record highs and 236 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 491 daily.
Riverton set a daily record snow depth of 22.9 cm (9.0 in) on 15 April 2021.
Across 159 earlier years (1801 to 2026) the same calendar date averaged 493 records.

Record Map

494 stations

494 station records on 15 April 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 April 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Riverton	United States	Record snow depth	22.9 cm (9.0 in)	79 of 100 (Major)
Riverton	United States	Record daily snowfall	28.4 cm (11.2 in)	75 of 100 (Major)
Sobolevo	Russia	Record daily precipitation	42.9 mm (1.7 in)	72 of 100 (Major)
Tulihe	China	Record daily precipitation	39.9 mm (1.6 in)	60 of 100 (Major)
Strawn 8 NNE	United States	Record daily precipitation	74.9 mm (2.9 in)	55 of 100 (Notable)
Yap Island WSO AP	Federated States of Micronesia	Record low maximum temperature	26.7 C (80.1 F)	53 of 100 (Notable)
Pavillion	United States	Record daily snowfall	14.0 cm (5.5 in)	52 of 100 (Notable)
Ft Morgan	United States	Record daily snowfall	11.9 cm (4.7 in)	50 of 100 (Notable)
Worland	United States	Record daily snowfall	5.1 cm (2.0 in)	45 of 100 (Notable)
Kaycee	United States	Record daily snowfall	8.1 cm (3.2 in)	44 of 100 (Notable)
Koror	Palau	Record daily precipitation	95.3 mm (3.8 in)	43 of 100 (Notable)
Dillinger	United States	Record daily snowfall	10.2 cm (4.0 in)	43 of 100 (Notable)
Fichtelberg	Germany	Record low maximum temperature	-4.2 C (24.4 F)	42 of 100 (Notable)
Nurnberg	Germany	Record low minimum temperature	-5.2 C (22.6 F)	41 of 100 (Notable)
Wells	United States	Record low maximum temperature	1.1 C (34.0 F)	41 of 100 (Notable)
Woodstock	United States	Record high minimum temperature	8.3 C (46.9 F)	41 of 100 (Notable)
Sheffield	United Kingdom	Record low minimum temperature	-1.8 C (28.8 F)	40 of 100 (Notable)
Caballo Dam	United States	Record high minimum temperature	15.0 C (59.0 F)	39 of 100 (Notable)
Meadville	United States	Record daily precipitation	118.4 mm (4.7 in)	38 of 100 (Notable)
Boysen Dam	United States	Record daily snowfall	5.1 cm (2.0 in)	38 of 100 (Notable)
Scottsbluff W B Heilig Fld AP	United States	Record daily snowfall	8.6 cm (3.4 in)	38 of 100 (Notable)
Riverton	United States	Record low maximum temperature	-1.7 C (28.9 F)	37 of 100 (Notable)
Sharon Springs	United States	Record snow depth	10.2 cm (4.0 in)	36 of 100 (Notable)
Biloxi	United States	Record daily precipitation	131.1 mm (5.2 in)	35 of 100 (Notable)
Westhampton Gabreski AP	United States	Record daily precipitation	47.0 mm (1.9 in)	35 of 100 (Notable)
Pbo Anantapur	India	Record daily precipitation	42.9 mm (1.7 in)	34 of 100 (Routine)
Plentywood	United States	Record snow depth	15.2 cm (6.0 in)	34 of 100 (Routine)
Leo 6 SW	United States	Record low maximum temperature	0.0 C (32.0 F)	34 of 100 (Routine)
Adak AP	United States	Record high maximum temperature	10.0 C (50.0 F)	34 of 100 (Routine)
Cresson	United States	Record daily precipitation	25.4 mm (1.0 in)	33 of 100 (Routine)
Wamsutter	United States	Record low maximum temperature	-1.7 C (28.9 F)	33 of 100 (Routine)
Dubois	United States	Record low maximum temperature	-5.0 C (23.0 F)	32 of 100 (Routine)
Holland Meadows	United States	Record low minimum temperature	-15.5 C (4.1 F)	32 of 100 (Routine)
Gage AP	United States	Record low maximum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Moses Lake Grant Co AP	United States	Record high maximum temperature	25.0 C (77.0 F)	32 of 100 (Routine)
Daly Waters AWS	Australia	Record low minimum temperature	14.1 C (57.4 F)	31 of 100 (Routine)
Balhash	Kazakhstan	Record high maximum temperature	24.5 C (76.1 F)	31 of 100 (Routine)
Pendleton Branch Exp STN	United States	Record low minimum temperature	-6.7 C (19.9 F)	31 of 100 (Routine)
Midwest	United States	Record daily snowfall	5.6 cm (2.2 in)	31 of 100 (Routine)
Clermont-Ferrand	France	Record low minimum temperature	-4.0 C (24.8 F)	30 of 100 (Routine)
Gaoua	Burkina Faso	Record high maximum temperature	40.6 C (105.1 F)	30 of 100 (Routine)
Brest-Guipavas	France	Record low minimum temperature	0.5 C (32.9 F)	29 of 100 (Routine)
Essen-Bredeney	Germany	Record low minimum temperature	-0.3 C (31.5 F)	29 of 100 (Routine)
Labuan	Malaysia	Record low minimum temperature	23.4 C (74.1 F)	29 of 100 (Routine)
Stampede Pass	United States	Record high maximum temperature	16.1 C (61.0 F)	29 of 100 (Routine)
Beerfelden	Germany	Record low minimum temperature	-3.6 C (25.5 F)	28 of 100 (Routine)
Skjak II	Norway	Record snow depth	13.0 cm (5.1 in)	28 of 100 (Routine)
Pojarkovo	Russia	Record low minimum temperature	-9.3 C (15.3 F)	28 of 100 (Routine)
Kimberley	South Africa	Record high maximum temperature	34.2 C (93.6 F)	28 of 100 (Routine)
Phrae	Thailand	Record daily precipitation	41.4 mm (1.6 in)	28 of 100 (Routine)
Boysen Dam	United States	Record low maximum temperature	-1.7 C (28.9 F)	28 of 100 (Routine)
Mobile	United States	Record daily precipitation	73.7 mm (2.9 in)	28 of 100 (Routine)
Denver-Stapleton	United States	Record snow depth	12.7 cm (5.0 in)	28 of 100 (Routine)
Mineral Wells AP	United States	Record low maximum temperature	14.4 C (57.9 F)	28 of 100 (Routine)
Mineral Wells AP	United States	Record daily precipitation	31.5 mm (1.2 in)	28 of 100 (Routine)
Giessen/Wettenberg	Germany	Record low minimum temperature	-2.9 C (26.8 F)	27 of 100 (Routine)
Hilgenroth	Germany	Record low minimum temperature	-2.7 C (27.1 F)	27 of 100 (Routine)
Kr. Bautzen Kubschutz	Germany	Record low maximum temperature	4.2 C (39.6 F)	27 of 100 (Routine)
Montabaur	Germany	Record low minimum temperature	-3.1 C (26.4 F)	27 of 100 (Routine)
Schotten	Germany	Record low minimum temperature	-3.8 C (25.2 F)	27 of 100 (Routine)

Counts by Type and Timescale

494 records

Records set or tied on 15 April 2021 by type: Highest daily maximum 72, Lowest daily maximum 99, Highest daily minimum 55, Lowest daily minimum 137, Heaviest daily rainfall 66, Heaviest daily snowfall 34, Deepest snow cover 31.

Records on 15 April 2021 by type
Record type	Records
Highest daily maximum	72
Lowest daily maximum	99
Highest daily minimum	55
Lowest daily minimum	137
Heaviest daily rainfall	66
Heaviest daily snowfall	34
Deepest snow cover	31

Records on 15 April 2021 by timescale: all-time 0, monthly 3, daily 491.

How Much Records Were Beaten By

399 broken records

Margins by which the 399 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 330.0. Ties are not counted.

Top 20 by Significance

15 April 2021

Top 20 records on 15 April 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 April 2021	Riverton, US	daily snow depth	22.9 cm (9.0 in)	22.9 cm (9.0 in)	114 years	79 of 100 (Major)
15 April 2021	Riverton, US	daily snowfall	28.4 cm (11.2 in)	23.3 cm (9.2 in)	96 years	75 of 100 (Major)
15 April 2021	Sobolevo, RU	daily rain	42.9 mm (1.7 in)	23.3 mm (0.9 in)	80 years	72 of 100 (Major)
15 April 2021	Tulihe, CN	daily rain	39.9 mm (1.6 in)	25.2 mm (1.0 in)	48 years	60 of 100 (Major)
15 April 2021	Strawn 8 NNE, US	daily rain	74.9 mm (2.9 in)	51.0 mm (2.0 in)	56 years	55 of 100 (Notable)
15 April 2021	Yap Island WSO AP, FM	daily low max	26.7 C (80.1 F)	2.7 C (4.9 F)	68 years	53 of 100 (Notable)
15 April 2021	Pavillion, US	daily snowfall	14.0 cm (5.5 in)	7.6 cm (3.0 in)	96 years	52 of 100 (Notable)
15 April 2021	Ft Morgan, US	daily snowfall	11.9 cm (4.7 in)	6.8 cm (2.7 in)	94 years	50 of 100 (Notable)
15 April 2021	Worland, US	daily snowfall	5.1 cm (2.0 in)	2.6 cm (1.0 in)	96 years	45 of 100 (Notable)
15 April 2021	Kaycee, US	daily snowfall	8.1 cm (3.2 in)	2.8 cm (1.1 in)	116 years	44 of 100 (Notable)
15 April 2021	Koror, PW	daily rain	95.3 mm (3.8 in)	66.3 mm (2.6 in)	20 years	43 of 100 (Notable)
15 April 2021	Dillinger, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	79 years	43 of 100 (Notable)
15 April 2021	Fichtelberg, DE	daily low max	-4.2 C (24.4 F)	1.1 C (2.0 F)	118 years	42 of 100 (Notable)
15 April 2021	Nurnberg, DE	daily low min	-5.2 C (22.6 F)	0.5 C (0.9 F)	108 years	41 of 100 (Notable)
15 April 2021	Wells, US	daily low max	1.1 C (34.0 F)	0.6 C (1.1 F)	108 years	41 of 100 (Notable)
15 April 2021	Woodstock, US	daily high min	8.3 C (46.9 F)	0.5 C (0.9 F)	100 years	41 of 100 (Notable)
15 April 2021	Sheffield, GB	daily low min	-1.8 C (28.8 F)	0.1 C (0.2 F)	100 years	40 of 100 (Notable)
15 April 2021	Caballo Dam, US	daily high min	15.0 C (59.0 F)	3.9 C (7.0 F)	72 years	39 of 100 (Notable)
15 April 2021	Meadville, US	daily rain	118.4 mm (4.7 in)	68.1 mm (2.7 in)	3 years	38 of 100 (Notable)
15 April 2021	Boysen Dam, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	72 years	38 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

1801 to 2021

Records set or tied on this calendar date in each year from 1801 to 2021. 2021 had 494 records.

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

Records on 04-15 in each year
Year	Records
1801	1
1817	1
1820	1
1844	1
1845	1
1847	1
1849	1
1853	2
1855	2
1858	1
1862	3
1865	3
1866	1
1868	1
1869	2
1873	1
1874	1
1876	1
1880	1
1882	1
1885	3
1886	1
1887	3
1889	2
1890	3
1891	2
1892	8
1893	2
1894	1
1896	2
1897	1
1898	2
1899	4
1900	9
1901	2
1902	4
1903	8
1904	39
1905	11
1906	20
1907	18
1908	15
1909	18
1910	16
1911	20
1912	24
1913	39
1914	17
1915	13
1916	15
1917	35
1918	40
1919	22
1920	50
1921	59
1922	94
1923	178
1924	172
1925	168
1926	453
1927	321
1928	631
1929	91
1930	289
1931	388
1932	150
1933	300
1934	339
1935	515
1936	439
1937	277
1938	596
1939	789
1940	581
1941	628
1942	525
1943	1,037
1944	313
1945	783
1946	245
1947	532
1948	306
1949	419
1950	568
1951	504
1952	357
1953	475
1954	896
1955	484
1956	750
1957	378
1958	458
1959	314
1960	319
1961	877
1962	733
1963	714
1964	382
1965	504
1966	464
1967	599
1968	476
1969	555
1970	841
1971	640
1972	896
1973	667
1974	385
1975	780
1976	1,566
1977	649
1978	426
1979	370
1980	1,066
1981	724
1982	955
1983	1,343
1984	612
1985	788
1986	1,140
1987	579
1988	839
1989	836
1990	837
1991	769
1992	783
1993	1,156
1994	835
1995	805
1996	1,173
1997	1,031
1998	1,752
1999	1,249
2000	1,163
2001	1,043
2002	1,866
2003	1,760
2004	761
2005	583
2006	1,637
2007	1,776
2008	1,157
2009	853
2010	804
2011	1,162
2012	1,007
2013	1,146
2014	1,721
2015	739
2016	602
2017	474
2018	1,913
2019	610
2020	1,068
2021	494
2022	1,145
2023	912
2024	1,096
2025	860
2026	1,118

Download the Data

Data for records on 2021-04-15: 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 50	375
50 to 100	19
100 to 150	2
150 to 200	0
200 to 250	2
250 to 300	0
300 to 350	1