Weather Records on 21 April 1930

127 weather records were set or tied worldwide on 21 April 1930. Highest significance: Cle Elum, US.

Key Facts for 21 April 1930

On 21 April 1930, 127 weather records were set or tied at long-record stations worldwide.
91 were record highs and 16 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 126 daily.
Cle Elum set a daily record high minimum temperature of 8.3 C (46.9 F) on 21 April 1930.
Across 159 earlier years (1793 to 2026) the same calendar date averaged 464 records.

Record Map

127 stations

127 station records on 21 April 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 April 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cle Elum	United States	Record high minimum temperature	8.3 C (46.9 F)	29 of 100 (Routine)
Oakland	United States	Record high minimum temperature	15.6 C (60.1 F)	27 of 100 (Routine)
Alberni Beaver Creek	Canada	Record high minimum temperature	10.0 C (50.0 F)	25 of 100 (Routine)
Berkeley	United States	Record high minimum temperature	15.0 C (59.0 F)	22 of 100 (Routine)
Durango	United States	Record high maximum temperature	26.7 C (80.1 F)	22 of 100 (Routine)
La Ctr	United States	Record high minimum temperature	11.1 C (52.0 F)	22 of 100 (Routine)
New Westminster	Canada	Record high minimum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Altentreptow	Germany	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Ueckermunde	Germany	Record daily precipitation	9.6 mm (0.38 in)	20 of 100 (Routine)
Grants Pass	United States	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Sorve	Estonia	Record daily precipitation	10.1 mm (0.4 in)	20 of 100 (Routine)
Kalmar_D	Sweden	Record daily precipitation	8.2 mm (0.32 in)	20 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Bisbee	United States	Record daily precipitation	4.8 mm (0.19 in)	20 of 100 (Routine)
Los Gatos	United States	Record high minimum temperature	11.7 C (53.1 F)	20 of 100 (Routine)
Riverside 7 SSW	United States	Record high minimum temperature	11.1 C (52.0 F)	20 of 100 (Routine)
Medicine Hat A	Canada	Record low minimum temperature	-6.1 C (21.0 F)	19 of 100 (Routine)
San Jose	United States	Record high minimum temperature	14.4 C (57.9 F)	19 of 100 (Routine)
Ukiah	United States	Record high minimum temperature	13.9 C (57.0 F)	19 of 100 (Routine)
Victoria Gonzales Hts	Canada	Record high minimum temperature	10.6 C (51.1 F)	18 of 100 (Routine)
Sandvig	Denmark	Record daily precipitation	8.4 mm (0.33 in)	18 of 100 (Routine)
Santa Cruz	United States	Record high minimum temperature	11.7 C (53.1 F)	18 of 100 (Routine)
Prineville	United States	Record high minimum temperature	7.8 C (46.0 F)	18 of 100 (Routine)
Welgelegen(Middlemnt	South Africa	Record daily precipitation	3.8 mm (0.15 in)	17 of 100 (Routine)
Marion	United States	Record high minimum temperature	17.8 C (64.0 F)	17 of 100 (Routine)
Klamath Falls 2 SSW	United States	Record high minimum temperature	8.3 C (46.9 F)	17 of 100 (Routine)
Scipio	United States	Record high maximum temperature	29.4 C (84.9 F)	17 of 100 (Routine)
Vancouver 4 NNE	United States	Record high minimum temperature	13.3 C (55.9 F)	17 of 100 (Routine)
Melbourne Regional Office	Australia	Record high minimum temperature	16.4 C (61.5 F)	16 of 100 (Routine)
Bakersfield	United States	Record high minimum temperature	14.4 C (57.9 F)	16 of 100 (Routine)
Albert Lea 3SE	United States	Record low minimum temperature	-3.9 C (25.0 F)	16 of 100 (Routine)
Hannibal 1 N	United States	Record daily precipitation	22.9 mm (0.9 in)	16 of 100 (Routine)
Ellensburg	United States	Record high minimum temperature	10.6 C (51.1 F)	16 of 100 (Routine)
Princeton	Canada	Record daily precipitation	4.8 mm (0.19 in)	15 of 100 (Routine)
Tombstone	United States	Record daily precipitation	1.3 mm (0.05 in)	15 of 100 (Routine)
Ottawa 4SW	United States	Record daily precipitation	35.3 mm (1.4 in)	15 of 100 (Routine)
Corvallis State UNIV	United States	Record high minimum temperature	13.3 C (55.9 F)	15 of 100 (Routine)
Mc Minnville	United States	Record high minimum temperature	12.8 C (55.0 F)	15 of 100 (Routine)
Levan	United States	Record high maximum temperature	28.3 C (82.9 F)	15 of 100 (Routine)
Moab	United States	Record high maximum temperature	31.7 C (89.1 F)	15 of 100 (Routine)
Colfax	United States	Record high minimum temperature	9.4 C (48.9 F)	15 of 100 (Routine)
Evanston 1 E	United States	Record high maximum temperature	23.3 C (73.9 F)	15 of 100 (Routine)
Masset Airport	Canada	Record high maximum temperature	15.6 C (60.1 F)	14 of 100 (Routine)
Edmonton	Canada	Record low minimum temperature	-8.9 C (16.0 F)	14 of 100 (Routine)
Bogoroditskoye-Fenino	Russia	Record high minimum temperature	10.2 C (50.4 F)	14 of 100 (Routine)
Sveg	Sweden	Record daily precipitation	6.5 mm (0.26 in)	14 of 100 (Routine)
Oakley	United States	Record high minimum temperature	7.8 C (46.0 F)	14 of 100 (Routine)
Soldier Creek Adm Site	United States	Record high maximum temperature	23.3 C (73.9 F)	14 of 100 (Routine)
Magnolia	United States	Record high maximum temperature	31.7 C (89.1 F)	14 of 100 (Routine)
Moira	United States	Record low minimum temperature	-10.0 C (14.0 F)	14 of 100 (Routine)
Fillmore	United States	Record high maximum temperature	28.9 C (84.0 F)	14 of 100 (Routine)
Heber	United States	Record high maximum temperature	26.7 C (80.1 F)	14 of 100 (Routine)
Logan Utah St UNIV	United States	Record high maximum temperature	26.1 C (79.0 F)	14 of 100 (Routine)
Tooele	United States	Record high maximum temperature	27.8 C (82.0 F)	14 of 100 (Routine)
Ladner	Canada	Record high maximum temperature	20.6 C (69.1 F)	13 of 100 (Routine)
Benson	United States	Record daily precipitation	0.5 mm (0.02 in)	13 of 100 (Routine)
Cedarville	United States	Record high maximum temperature	28.3 C (82.9 F)	13 of 100 (Routine)
Crookston NW Exp STN	United States	Record low minimum temperature	-6.7 C (19.9 F)	13 of 100 (Routine)
Cascade Locks	United States	Record high minimum temperature	12.2 C (54.0 F)	13 of 100 (Routine)
Snoqualmie Falls	United States	Record high minimum temperature	10.6 C (51.1 F)	13 of 100 (Routine)

Counts by Type and Timescale

127 records

Records set or tied on 21 April 1930 by type: Highest daily maximum 41, Lowest daily maximum 3, Highest daily minimum 50, Lowest daily minimum 13, Heaviest daily rainfall 20.

Records on 21 April 1930 by type
Record type	Records
Highest daily maximum	41
Lowest daily maximum	3
Highest daily minimum	50
Lowest daily minimum	13
Heaviest daily rainfall	20
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 21 April 1930 by timescale: all-time 0, monthly 1, daily 126.

How Much Records Were Beaten By

99 broken records

Margins by which the 99 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 10.2. Ties are not counted.

Top 20 by Significance

21 April 1930

Top 20 records on 21 April 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 April 1930	Cle Elum, US	daily high min	8.3 C (46.9 F)	5.5 C (9.9 F)	27 years	29 of 100 (Routine)
21 April 1930	Oakland, US	daily high min	15.6 C (60.1 F)	3.9 C (7.0 F)	24 years	27 of 100 (Routine)
21 April 1930	Alberni Beaver Creek, CA	daily high min	10.0 C (50.0 F)	4.4 C (7.9 F)	29 years	25 of 100 (Routine)
21 April 1930	Berkeley, US	daily high min	15.0 C (59.0 F)	2.2 C (4.0 F)	34 years	22 of 100 (Routine)
21 April 1930	Durango, US	monthly high max	26.7 C (80.1 F)	0.6 C (1.1 F)	28 years	22 of 100 (Routine)
21 April 1930	La Ctr, US	daily high min	11.1 C (52.0 F)	3.3 C (5.9 F)	31 years	22 of 100 (Routine)
21 April 1930	New Westminster, CA	daily high min	10.0 C (50.0 F)	0.6 C (1.1 F)	48 years	21 of 100 (Routine)
21 April 1930	Altentreptow, DE	daily rain	15.2 mm (0.6 in)	7.0 mm (0.28 in)	34 years	20 of 100 (Routine)
21 April 1930	Ueckermunde, DE	daily rain	9.6 mm (0.38 in)	4.9 mm (0.19 in)	30 years	20 of 100 (Routine)
21 April 1930	Grants Pass, US	daily rain	15.0 mm (0.6 in)	10.2 mm (0.4 in)	27 years	20 of 100 (Routine)
21 April 1930	Sorve, EE	daily rain	10.1 mm (0.4 in)	3.3 mm (0.13 in)	24 years	20 of 100 (Routine)
21 April 1930	Kalmar_D, SE	daily rain	8.2 mm (0.32 in)	1.5 mm (0.06 in)	37 years	20 of 100 (Routine)
21 April 1930	Klamath Falls 2 SSW, US	daily rain	7.4 mm (0.29 in)	3.6 mm (0.14 in)	24 years	20 of 100 (Routine)
21 April 1930	Bisbee, US	daily rain	4.8 mm (0.19 in)	4.8 mm (0.19 in)	36 years	20 of 100 (Routine)
21 April 1930	Los Gatos, US	daily high min	11.7 C (53.1 F)	1.7 C (3.1 F)	36 years	20 of 100 (Routine)
21 April 1930	Riverside 7 SSW, US	daily high min	11.1 C (52.0 F)	6.1 C (11.0 F)	8 years	20 of 100 (Routine)
21 April 1930	Medicine Hat A, CA	daily low min	-6.1 C (21.0 F)	2.2 C (4.0 F)	36 years	19 of 100 (Routine)
21 April 1930	San Jose, US	daily high min	14.4 C (57.9 F)	3.8 C (6.8 F)	15 years	19 of 100 (Routine)
21 April 1930	Ukiah, US	daily high min	13.9 C (57.0 F)	3.9 C (7.0 F)	15 years	19 of 100 (Routine)
21 April 1930	Victoria Gonzales Hts, CA	daily high min	10.6 C (51.1 F)	1.7 C (3.1 F)	27 years	18 of 100 (Routine)

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 1930

Records set or tied on this calendar date in each year from 1793 to 1930. 1930 had 127 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	887
2024	754
2025	506
2026	853

Download the Data

Data for records on 1930-04-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 2	59
2 to 4	31
4 to 6	5
6 to 8	3
8 to 10	0
10 to 12	1