Weather Records on 15 April 1930

289 weather records were set or tied worldwide on 15 April 1930. Highest significance: Calgary Int'l A, CA.

Key Facts for 15 April 1930

On 15 April 1930, 289 weather records were set or tied at long-record stations worldwide.
140 were record highs and 23 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 285 daily.
Calgary Int'l A set a daily record precipitation of 30.5 mm (1.2 in) on 15 April 1930.
Across 159 earlier years (1801 to 2026) the same calendar date averaged 494 records.

Record Map

289 stations

289 station records on 15 April 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 April 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Calgary Int'l A	Canada	Record daily precipitation	30.5 mm (1.2 in)	58 of 100 (Notable)
Postville	United States	Record daily precipitation	56.9 mm (2.2 in)	52 of 100 (Notable)
Lismore (Centre Street)	Australia	Record daily precipitation	169.7 mm (6.7 in)	51 of 100 (Notable)
Kremsmuenster	Austria	Record daily precipitation	44.5 mm (1.8 in)	50 of 100 (Notable)
Perth Regional Office	Australia	Record daily precipitation	39.1 mm (1.5 in)	46 of 100 (Notable)
Koolool	Australia	Record daily precipitation	143.5 mm (5.6 in)	46 of 100 (Notable)
Spring Hill	Australia	Record daily precipitation	127.0 mm (5.0 in)	46 of 100 (Notable)
Watseka Public Works	United States	Record daily precipitation	50.8 mm (2.0 in)	44 of 100 (Notable)
Oregon	United States	Record daily precipitation	53.8 mm (2.1 in)	44 of 100 (Notable)
Woodburn Post Office	Australia	Record daily precipitation	111.3 mm (4.4 in)	38 of 100 (Notable)
Dubuque River	United States	Record daily precipitation	52.8 mm (2.1 in)	37 of 100 (Notable)
Ft Myers Page Fld AP	United States	Record daily precipitation	59.9 mm (2.4 in)	36 of 100 (Notable)
Independence	United States	Record daily precipitation	40.9 mm (1.6 in)	34 of 100 (Routine)
Beatrice	United States	Record daily precipitation	45.7 mm (1.8 in)	34 of 100 (Routine)
Mt Carroll	United States	Record daily precipitation	35.3 mm (1.4 in)	33 of 100 (Routine)
Brodhead Wwtp	United States	Record daily precipitation	32.5 mm (1.3 in)	33 of 100 (Routine)
Stanton	United States	Record daily precipitation	35.6 mm (1.4 in)	30 of 100 (Routine)
Beloit	United States	Record daily precipitation	35.6 mm (1.4 in)	30 of 100 (Routine)
Wollongbar (Central Park Drive	Australia	Record daily precipitation	138.7 mm (5.5 in)	29 of 100 (Routine)
Bethany	United States	Record daily precipitation	44.2 mm (1.7 in)	29 of 100 (Routine)
Maclean (McLachlan Street)	Australia	Record daily precipitation	72.1 mm (2.8 in)	28 of 100 (Routine)
Oxenford (Oberon Way)	Australia	Record daily precipitation	58.9 mm (2.3 in)	27 of 100 (Routine)
Lawrence Post Office	Australia	Record daily precipitation	39.4 mm (1.6 in)	27 of 100 (Routine)
New Hampton	United States	Record daily precipitation	33.8 mm (1.3 in)	27 of 100 (Routine)
Condong Sugar Mill	Australia	Record daily precipitation	81.8 mm (3.2 in)	26 of 100 (Routine)
Tweed Heads Golf Club	Australia	Record daily precipitation	82.8 mm (3.3 in)	26 of 100 (Routine)
Woolgoolga (Clear Place)	Australia	Record daily precipitation	69.9 mm (2.8 in)	26 of 100 (Routine)
Coraki Post Office	Australia	Record daily precipitation	108.0 mm (4.3 in)	25 of 100 (Routine)
Manhattan	United States	Record daily precipitation	55.9 mm (2.2 in)	25 of 100 (Routine)
Ulmarra (Newsagency)	Australia	Record daily precipitation	31.8 mm (1.3 in)	24 of 100 (Routine)
Bathurst	Canada	Record low maximum temperature	-1.1 C (30.0 F)	24 of 100 (Routine)
Columbus 3 NE	United States	Record daily precipitation	33.3 mm (1.3 in)	24 of 100 (Routine)
Bucuresti Filaret	Romania	Record daily precipitation	31.8 mm (1.3 in)	23 of 100 (Routine)
Harnosand	Sweden	Record high minimum temperature	3.0 C (37.4 F)	22 of 100 (Routine)
Morrison	United States	Record daily precipitation	30.5 mm (1.2 in)	22 of 100 (Routine)
Atchison	United States	Record daily precipitation	50.3 mm (2.0 in)	22 of 100 (Routine)
Saint John	Canada	Record low maximum temperature	2.2 C (36.0 F)	21 of 100 (Routine)
Karlshamn	Sweden	Record high minimum temperature	7.0 C (44.6 F)	21 of 100 (Routine)
Vasteras-Hasslo	Sweden	Record high minimum temperature	6.9 C (44.4 F)	21 of 100 (Routine)
Bjuraker	Sweden	Record high minimum temperature	2.0 C (35.6 F)	21 of 100 (Routine)
Butte Bert Mooney AP	United States	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Chaplin	Canada	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Grafton City Council	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Hillsboro	United States	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Joliet	United States	Record daily precipitation	23.4 mm (0.9 in)	20 of 100 (Routine)
Arnsberg	Germany	Record daily precipitation	18.6 mm (0.7 in)	20 of 100 (Routine)
Enisejsk	Russia	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Karesuando	Sweden	Record daily precipitation	5.7 mm (0.22 in)	20 of 100 (Routine)
Ramornie	Australia	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Banff	Canada	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
La Crosse Wb City	United States	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Tabulam Post Office	Australia	Record daily precipitation	31.2 mm (1.2 in)	20 of 100 (Routine)
Cudgen Plantation	Australia	Record daily precipitation	65.3 mm (2.6 in)	20 of 100 (Routine)
Marengo	United States	Record daily precipitation	28.7 mm (1.1 in)	20 of 100 (Routine)
David City 4E	United States	Record daily precipitation	33.5 mm (1.3 in)	20 of 100 (Routine)
Waukomis	United States	Record high minimum temperature	17.2 C (63.0 F)	20 of 100 (Routine)
Racine Wwtp	United States	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Brushgrove Post Office	Australia	Record daily precipitation	46.5 mm (1.8 in)	19 of 100 (Routine)
Banff	Canada	Record daily snowfall	13.0 cm (5.1 in)	19 of 100 (Routine)
Charlottetown	Canada	Record low maximum temperature	-1.1 C (30.0 F)	19 of 100 (Routine)

Counts by Type and Timescale

289 records

Records set or tied on 15 April 1930 by type: Highest daily maximum 50, Lowest daily maximum 11, Highest daily minimum 90, Lowest daily minimum 12, Heaviest daily rainfall 125, Heaviest daily snowfall 1.

Records on 15 April 1930 by type
Record type	Records
Highest daily maximum	50
Lowest daily maximum	11
Highest daily minimum	90
Lowest daily minimum	12
Heaviest daily rainfall	125
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 15 April 1930 by timescale: all-time 0, monthly 4, daily 285.

How Much Records Were Beaten By

226 broken records

Margins by which the 226 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 101.6. Ties are not counted.

Top 20 by Significance

15 April 1930

Top 20 records on 15 April 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 April 1930	Calgary Int'l A, CA	daily rain	30.5 mm (1.2 in)	20.1 mm (0.8 in)	44 years	58 of 100 (Notable)
15 April 1930	Postville, US	daily rain	56.9 mm (2.2 in)	47.8 mm (1.9 in)	32 years	52 of 100 (Notable)
15 April 1930	Lismore (Centre Street), AU	daily rain	169.7 mm (6.7 in)	88.2 mm (3.5 in)	25 years	51 of 100 (Notable)
15 April 1930	Kremsmuenster, AT	daily rain	44.5 mm (1.8 in)	19.0 mm (0.7 in)	52 years	50 of 100 (Notable)
15 April 1930	Perth Regional Office, AU	daily rain	39.1 mm (1.5 in)	25.4 mm (1.0 in)	37 years	46 of 100 (Notable)
15 April 1930	Koolool, AU	monthly rain	143.5 mm (5.6 in)	44.4 mm (1.7 in)	11 years	46 of 100 (Notable)
15 April 1930	Spring Hill, AU	daily rain	127.0 mm (5.0 in)	101.6 mm (4.0 in)	7 years	46 of 100 (Notable)
15 April 1930	Watseka Public Works, US	daily rain	50.8 mm (2.0 in)	45.2 mm (1.8 in)	5 years	44 of 100 (Notable)
15 April 1930	Oregon, US	daily rain	53.8 mm (2.1 in)	39.8 mm (1.6 in)	13 years	44 of 100 (Notable)
15 April 1930	Woodburn Post Office, AU	daily rain	111.3 mm (4.4 in)	42.0 mm (1.7 in)	35 years	38 of 100 (Notable)
15 April 1930	Dubuque River, US	daily rain	52.8 mm (2.1 in)	27.4 mm (1.1 in)	8 years	37 of 100 (Notable)
15 April 1930	Ft Myers Page Fld AP, US	daily rain	59.9 mm (2.4 in)	39.6 mm (1.6 in)	24 years	36 of 100 (Notable)
15 April 1930	Independence, US	daily rain	40.9 mm (1.6 in)	23.4 mm (0.9 in)	20 years	34 of 100 (Routine)
15 April 1930	Beatrice, US	daily rain	45.7 mm (1.8 in)	23.3 mm (0.9 in)	29 years	34 of 100 (Routine)
15 April 1930	Mt Carroll, US	daily rain	35.3 mm (1.4 in)	23.9 mm (0.9 in)	11 years	33 of 100 (Routine)
15 April 1930	Brodhead Wwtp, US	daily rain	32.5 mm (1.3 in)	22.6 mm (0.9 in)	20 years	33 of 100 (Routine)
15 April 1930	Stanton, US	daily rain	35.6 mm (1.4 in)	17.8 mm (0.7 in)	34 years	30 of 100 (Routine)
15 April 1930	Beloit, US	daily rain	35.6 mm (1.4 in)	21.1 mm (0.8 in)	20 years	30 of 100 (Routine)
15 April 1930	Wollongbar (Central Park Drive, AU	monthly rain	138.7 mm (5.5 in)	22.4 mm (0.9 in)	14 years	29 of 100 (Routine)
15 April 1930	Bethany, US	daily rain	44.2 mm (1.7 in)	29.2 mm (1.1 in)	8 years	29 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

1801 to 1930

Records set or tied on this calendar date in each year from 1801 to 1930. 1930 had 289 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 1930-04-15: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 20	195
20 to 40	25
40 to 60	4
60 to 80	0
80 to 100	1
100 to 120	1