Weather Records on 4 April 2021

1,341 weather records were set or tied worldwide on 4 April 2021. Highest significance: University Exp STN, US.

Key Facts for 4 April 2021

On 4 April 2021, 1,341 weather records were set or tied at long-record stations worldwide.
1,075 were record highs and 159 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 10 monthly and 1,331 daily.
University Exp STN set a daily record snowfall of 17.8 cm (7.0 in) on 4 April 2021.
Across 155 earlier years (1794 to 2026) the same calendar date averaged 499 records.

Record Map

1,341 stations

1,341 station records on 4 April 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 April 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
University Exp STN	United States	Record daily snowfall	17.8 cm (7.0 in)	62 of 100 (Major)
Gilmore Creek	United States	Record daily snowfall	21.8 cm (8.6 in)	59 of 100 (Notable)
Fairbanks Intl AP	United States	Record daily snowfall	15.7 cm (6.2 in)	59 of 100 (Notable)
Lankaran	Azerbaijan	Record daily precipitation	99.3 mm (3.9 in)	55 of 100 (Notable)
Norddal	Norway	Record daily precipitation	32.3 mm (1.3 in)	55 of 100 (Notable)
Lajes Ab	Portugal	Record daily precipitation	39.9 mm (1.6 in)	52 of 100 (Notable)
Castle Rock	United States	Record high minimum temperature	12.2 C (54.0 F)	51 of 100 (Notable)
College Obsy	United States	Record daily snowfall	15.7 cm (6.2 in)	47 of 100 (Notable)
Aranyaprathet	Thailand	Record daily precipitation	52.8 mm (2.1 in)	44 of 100 (Notable)
Highmore	United States	Record high maximum temperature	33.3 C (91.9 F)	44 of 100 (Notable)
Tiree	Australia	Record daily precipitation	79.0 mm (3.1 in)	43 of 100 (Notable)
Castle Rock	United States	Record high maximum temperature	26.7 C (80.1 F)	43 of 100 (Notable)
Longmont 2 ESE	United States	Record high maximum temperature	27.2 C (81.0 F)	43 of 100 (Notable)
Sugar City	United States	Record high maximum temperature	22.8 C (73.0 F)	43 of 100 (Notable)
Wallace	United States	Record high maximum temperature	30.0 C (86.0 F)	43 of 100 (Notable)
Scottsbluff W B Heilig Fld AP	United States	Record high maximum temperature	30.0 C (86.0 F)	43 of 100 (Notable)
Phitsanulok/Sarit	Thailand	Record daily precipitation	92.7 mm (3.6 in)	42 of 100 (Notable)
Ft Assiniboine	United States	Record high minimum temperature	6.7 C (44.1 F)	42 of 100 (Notable)
Deaver	United States	Record high maximum temperature	25.0 C (77.0 F)	42 of 100 (Notable)
Tak	Thailand	Record daily precipitation	92.7 mm (3.6 in)	41 of 100 (Notable)
Medicine Lake 3 SE	United States	Record high maximum temperature	25.0 C (77.0 F)	41 of 100 (Notable)
Ainsworth	United States	Record high maximum temperature	28.9 C (84.0 F)	41 of 100 (Notable)
Chadron 3SW	United States	Record high maximum temperature	26.7 C (80.1 F)	41 of 100 (Notable)
Oshkosh	United States	Record high maximum temperature	28.9 C (84.0 F)	41 of 100 (Notable)
Springview 2NW	United States	Record high maximum temperature	27.2 C (81.0 F)	41 of 100 (Notable)
Dupree	United States	Record high maximum temperature	28.9 C (84.0 F)	41 of 100 (Notable)
Kennebec	United States	Record high maximum temperature	30.0 C (86.0 F)	41 of 100 (Notable)
Lemmon	United States	Record high maximum temperature	27.2 C (81.0 F)	41 of 100 (Notable)
Rocky Mt	United States	Record low minimum temperature	-4.4 C (24.1 F)	41 of 100 (Notable)
Brule Rs	United States	Record high maximum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Superior	United States	Record high minimum temperature	4.4 C (39.9 F)	41 of 100 (Notable)
Julesburg	United States	Record high maximum temperature	27.8 C (82.0 F)	40 of 100 (Notable)
Ogallala	United States	Record high maximum temperature	28.3 C (82.9 F)	40 of 100 (Notable)
Rochester Intl AP	United States	Record high maximum temperature	27.2 C (81.0 F)	40 of 100 (Notable)
Timber Lake	United States	Record high maximum temperature	26.7 C (80.1 F)	39 of 100 (Notable)
Farson 2NNE	United States	Record high maximum temperature	20.0 C (68.0 F)	39 of 100 (Notable)
Paradise	United States	Record high maximum temperature	26.1 C (79.0 F)	38 of 100 (Notable)
Summit	United States	Record high minimum temperature	3.9 C (39.0 F)	38 of 100 (Notable)
Mondovi	United States	Record high maximum temperature	27.2 C (81.0 F)	38 of 100 (Notable)
Winslow AP	United States	Record high maximum temperature	31.1 C (88.0 F)	38 of 100 (Notable)
Leroy 5 WSW	United States	Record high maximum temperature	26.1 C (79.0 F)	37 of 100 (Notable)
Newnan 7 WNW	United States	Record low minimum temperature	-2.8 C (27.0 F)	37 of 100 (Notable)
Primghar	United States	Record high maximum temperature	27.8 C (82.0 F)	37 of 100 (Notable)
Chatham	United States	Record low minimum temperature	-6.1 C (21.0 F)	37 of 100 (Notable)
Evanston 1 E	United States	Record high maximum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Goodland	United States	Record high maximum temperature	30.6 C (87.1 F)	37 of 100 (Notable)
Tafjord	Norway	Record daily precipitation	28.6 mm (1.1 in)	36 of 100 (Notable)
Orskog	Norway	Record daily precipitation	34.5 mm (1.4 in)	36 of 100 (Notable)
Wick	United Kingdom	Record low maximum temperature	3.5 C (38.3 F)	36 of 100 (Notable)
Ft Morgan	United States	Record high maximum temperature	27.2 C (81.0 F)	36 of 100 (Notable)
Shoshone	United States	Record high maximum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Brooklet 1 W	United States	Record low minimum temperature	0.0 C (32.0 F)	36 of 100 (Notable)
Monticello	United States	Record low minimum temperature	-1.7 C (28.9 F)	36 of 100 (Notable)
Bridger 2 N	United States	Record high maximum temperature	26.1 C (79.0 F)	36 of 100 (Notable)
Sidney 6NNW	United States	Record high maximum temperature	27.2 C (81.0 F)	36 of 100 (Notable)
Shelby 2 NW	United States	Record low minimum temperature	-4.4 C (24.1 F)	36 of 100 (Notable)
Winner	United States	Record high maximum temperature	31.7 C (89.1 F)	36 of 100 (Notable)
Duchesne	United States	Record high maximum temperature	26.7 C (80.1 F)	36 of 100 (Notable)
Woodruff	United States	Record high maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Bettles AP	United States	Record daily snowfall	17.5 cm (6.9 in)	36 of 100 (Notable)

Counts by Type and Timescale

1,341 records

Records set or tied on 4 April 2021 by type: Highest daily maximum 758, Lowest daily maximum 19, Highest daily minimum 317, Lowest daily minimum 140, Heaviest daily rainfall 97, Heaviest daily snowfall 8, Deepest snow cover 2.

Records on 4 April 2021 by type
Record type	Records
Highest daily maximum	758
Lowest daily maximum	19
Highest daily minimum	317
Lowest daily minimum	140
Heaviest daily rainfall	97
Heaviest daily snowfall	8
Deepest snow cover	2

Records on 4 April 2021 by timescale: all-time 0, monthly 10, daily 1,331.

How Much Records Were Beaten By

1,103 broken records

Margins by which the 1,103 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 134.0. Ties are not counted.

Top 20 by Significance

4 April 2021

Top 20 records on 4 April 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 April 2021	University Exp STN, US	daily snowfall	17.8 cm (7.0 in)	7.6 cm (3.0 in)	115 years	62 of 100 (Major)
4 April 2021	Gilmore Creek, US	monthly snowfall	21.8 cm (8.6 in)	10.4 cm (4.1 in)	14 years	59 of 100 (Notable)
4 April 2021	Fairbanks Intl AP, US	daily snowfall	15.7 cm (6.2 in)	8.3 cm (3.3 in)	72 years	59 of 100 (Notable)
4 April 2021	Lankaran, AZ	daily rain	99.3 mm (3.9 in)	61.5 mm (2.4 in)	16 years	55 of 100 (Notable)
4 April 2021	Norddal, NO	daily rain	32.3 mm (1.3 in)	14.3 mm (0.6 in)	67 years	55 of 100 (Notable)
4 April 2021	Lajes Ab, PT	daily rain	39.9 mm (1.6 in)	21.4 mm (0.8 in)	67 years	52 of 100 (Notable)
4 April 2021	Castle Rock, US	daily high min	12.2 C (54.0 F)	6.6 C (11.9 F)	92 years	51 of 100 (Notable)
4 April 2021	College Obsy, US	daily snowfall	15.7 cm (6.2 in)	6.8 cm (2.7 in)	51 years	47 of 100 (Notable)
4 April 2021	Aranyaprathet, TH	daily rain	52.8 mm (2.1 in)	28.5 mm (1.1 in)	66 years	44 of 100 (Notable)
4 April 2021	Highmore, US	daily high max	33.3 C (91.9 F)	3.3 C (5.9 F)	100 years	44 of 100 (Notable)
4 April 2021	Tiree, AU	daily rain	79.0 mm (3.1 in)	34.5 mm (1.4 in)	58 years	43 of 100 (Notable)
4 April 2021	Castle Rock, US	daily high max	26.7 C (80.1 F)	2.3 C (4.1 F)	127 years	43 of 100 (Notable)
4 April 2021	Longmont 2 ESE, US	daily high max	27.2 C (81.0 F)	2.8 C (5.0 F)	100 years	43 of 100 (Notable)
4 April 2021	Sugar City, US	daily high max	22.8 C (73.0 F)	2.2 C (4.0 F)	100 years	43 of 100 (Notable)
4 April 2021	Wallace, US	daily high max	30.0 C (86.0 F)	2.2 C (4.0 F)	112 years	43 of 100 (Notable)
4 April 2021	Scottsbluff W B Heilig Fld AP, US	daily high max	30.0 C (86.0 F)	2.8 C (5.0 F)	100 years	43 of 100 (Notable)
4 April 2021	Phitsanulok/Sarit, TH	monthly rain	92.7 mm (3.6 in)	10.8 mm (0.4 in)	61 years	42 of 100 (Notable)
4 April 2021	Ft Assiniboine, US	daily high min	6.7 C (44.1 F)	1.1 C (2.0 F)	104 years	42 of 100 (Notable)
4 April 2021	Deaver, US	daily high max	25.0 C (77.0 F)	2.8 C (5.0 F)	96 years	42 of 100 (Notable)
4 April 2021	Tak, TH	daily rain	92.7 mm (3.6 in)	30.5 mm (1.2 in)	51 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

1794 to 2021

Records set or tied on this calendar date in each year from 1794 to 2021. 2021 had 1,341 records.

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

Records on 04-04 in each year
Year	Records
1794	1
1808	1
1809	1
1815	2
1819	1
1853	1
1857	1
1873	1
1874	2
1877	2
1878	1
1879	3
1880	2
1881	3
1882	1
1883	1
1884	1
1885	1
1886	2
1887	1
1888	1
1891	1
1892	6
1893	2
1895	2
1896	3
1897	4
1898	7
1899	4
1900	7
1901	12
1902	2
1903	17
1904	6
1905	23
1906	7
1907	9
1908	20
1909	15
1910	48
1911	55
1912	25
1913	31
1914	13
1915	52
1916	65
1917	36
1918	37
1919	27
1920	89
1921	205
1922	39
1923	101
1924	51
1925	126
1926	206
1927	203
1928	625
1929	1,320
1930	86
1931	201
1932	193
1933	167
1934	656
1935	402
1936	714
1937	344
1938	201
1939	243
1940	392
1941	353
1942	537
1943	456
1944	975
1945	806
1946	459
1947	397
1948	202
1949	458
1950	1,044
1951	352
1952	348
1953	332
1954	742
1955	448
1956	426
1957	984
1958	492
1959	524
1960	756
1961	525
1962	308
1963	586
1964	675
1965	443
1966	469
1967	438
1968	640
1969	424
1970	438
1971	560
1972	695
1973	511
1974	1,356
1975	1,981
1976	353
1977	780
1978	497
1979	984
1980	690
1981	1,393
1982	1,251
1983	1,202
1984	762
1985	865
1986	810
1987	2,317
1988	1,119
1989	668
1990	826
1991	957
1992	1,270
1993	733
1994	726
1995	935
1996	699
1997	1,538
1998	931
1999	1,575
2000	1,371
2001	1,040
2002	989
2003	1,055
2004	782
2005	1,070
2006	911
2007	1,009
2008	860
2009	1,068
2010	758
2011	1,155
2012	830
2013	938
2014	705
2015	452
2016	795
2017	603
2018	1,196
2019	407
2020	914
2021	1,341
2022	1,014
2023	2,058
2024	966
2025	1,330
2026	894

Download the Data

Data for records on 2021-04-04: 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	1,089
20 to 40	6
40 to 60	0
60 to 80	5
80 to 100	1
100 to 120	1
120 to 140	1