Weather Records on 30 April 1939

268 weather records were set or tied worldwide on 30 April 1939. Highest significance: Wolfville, CA.

Key Facts for 30 April 1939

On 30 April 1939, 268 weather records were set or tied at long-record stations worldwide.
121 were record highs and 82 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 248 daily.
Wolfville set a daily record snowfall of 5.1 cm (2.0 in) on 30 April 1939.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 448 records.

Record Map

268 stations

268 station records on 30 April 1939 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 April 1939: highest significance records shown on the map
Station	Country	Type	Value	Significance
Wolfville	Canada	Record daily snowfall	5.1 cm (2.0 in)	37 of 100 (Notable)
Windsor Kings College	Canada	Record daily snowfall	5.1 cm (2.0 in)	35 of 100 (Notable)
Russell	Canada	Record high maximum temperature	30.0 C (86.0 F)	31 of 100 (Routine)
Parrsboro	Canada	Record daily snowfall	10.2 cm (4.0 in)	31 of 100 (Routine)
Lugansk	Ukraine	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Prince Albert	Canada	Record high minimum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Bottineau	United States	Record high minimum temperature	11.1 C (52.0 F)	29 of 100 (Routine)
Dauphin	Canada	Record high maximum temperature	32.2 C (90.0 F)	26 of 100 (Routine)
Anklam	Germany	Record daily precipitation	27.7 mm (1.1 in)	25 of 100 (Routine)
Lovell	United States	Record high maximum temperature	32.2 C (90.0 F)	25 of 100 (Routine)
Norway House	Canada	Record high maximum temperature	27.2 C (81.0 F)	24 of 100 (Routine)
Southport 5 N	United States	Record low minimum temperature	4.4 C (39.9 F)	24 of 100 (Routine)
Sydney	Canada	Record daily snowfall	5.1 cm (2.0 in)	23 of 100 (Routine)
Greiz-Dolau	Germany	Record daily precipitation	25.8 mm (1.0 in)	23 of 100 (Routine)
New London	United States	Record high minimum temperature	16.7 C (62.1 F)	23 of 100 (Routine)
Scipio	United States	Record high minimum temperature	10.0 C (50.0 F)	22 of 100 (Routine)
Grenfell	Canada	Record high minimum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Hubbard	Canada	Record high maximum temperature	27.8 C (82.0 F)	21 of 100 (Routine)
Oxford	United Kingdom	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Gabyon	Australia	Record daily precipitation	13.5 mm (0.5 in)	20 of 100 (Routine)
Tallering	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Innsbruck	Austria	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Whitehead	Canada	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)
Yalgoo	Australia	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Philipsburg	United States	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Kennebec	United States	Record high minimum temperature	13.9 C (57.0 F)	20 of 100 (Routine)
Boolardy	Australia	Record daily precipitation	1.5 mm (0.06 in)	19 of 100 (Routine)
Akhnoor	India	Record daily precipitation	7.6 mm (0.30 in)	19 of 100 (Routine)
Hamilton	United States	Record high minimum temperature	7.8 C (46.0 F)	19 of 100 (Routine)
Mountainair	United States	Record daily precipitation	13.2 mm (0.5 in)	19 of 100 (Routine)
Kinston 7 SE	United States	Record low minimum temperature	2.2 C (36.0 F)	19 of 100 (Routine)
Southern Pines 2 W	United States	Record low minimum temperature	2.8 C (37.0 F)	19 of 100 (Routine)
Meka Station	Australia	Record daily precipitation	2.5 mm (0.10 in)	18 of 100 (Routine)
Battleford	Canada	Record high minimum temperature	10.0 C (50.0 F)	18 of 100 (Routine)
Ilulissat (Jakobshavn)	Greenland [Denmark]	Record high maximum temperature	11.2 C (52.2 F)	18 of 100 (Routine)
Malvern	United Kingdom	Record low maximum temperature	7.2 C (45.0 F)	18 of 100 (Routine)
Westcliffe	United States	Record high minimum temperature	6.1 C (43.0 F)	18 of 100 (Routine)
Concord	United States	Record low minimum temperature	-1.7 C (28.9 F)	18 of 100 (Routine)
Grand Forks UNIV (NWS)	United States	Record high maximum temperature	28.3 C (82.9 F)	18 of 100 (Routine)
Beaufort Wwtp	United States	Record low minimum temperature	6.7 C (44.1 F)	18 of 100 (Routine)
Barnong	Australia	Record daily precipitation	4.6 mm (0.18 in)	17 of 100 (Routine)
Big Creek	Canada	Record low maximum temperature	4.4 C (39.9 F)	17 of 100 (Routine)
Ernakulam	India	Record daily precipitation	48.3 mm (1.9 in)	17 of 100 (Routine)
Cedaredge	United States	Record high minimum temperature	8.3 C (46.9 F)	17 of 100 (Routine)
Talbotton	United States	Record low minimum temperature	6.1 C (43.0 F)	17 of 100 (Routine)
Ashton 1N	United States	Record high minimum temperature	7.2 C (45.0 F)	17 of 100 (Routine)
Malta	United States	Record high minimum temperature	12.8 C (55.0 F)	17 of 100 (Routine)
Poplar 2 E	United States	Record high minimum temperature	11.1 C (52.0 F)	17 of 100 (Routine)
Riverside 7 SSW	United States	Record high maximum temperature	29.4 C (84.9 F)	17 of 100 (Routine)
Greensburg 2 S	United States	Record daily precipitation	22.9 mm (0.9 in)	17 of 100 (Routine)
Georgetown 2 E	United States	Record low minimum temperature	5.0 C (41.0 F)	17 of 100 (Routine)
Duchesne	United States	Record high minimum temperature	8.3 C (46.9 F)	17 of 100 (Routine)
Elko Rgnl AP	United States	Record daily precipitation	15.5 mm (0.6 in)	17 of 100 (Routine)
Victor Harbor Comparison	Australia	Record daily precipitation	4.8 mm (0.19 in)	16 of 100 (Routine)
Frogmore	Australia	Record daily precipitation	5.3 mm (0.21 in)	16 of 100 (Routine)
Braidwood (Krawarree)	Australia	Record daily precipitation	7.6 mm (0.30 in)	16 of 100 (Routine)
Brandon Cda	Canada	Record high maximum temperature	30.0 C (86.0 F)	16 of 100 (Routine)
Berens River	Canada	Record high maximum temperature	28.9 C (84.0 F)	16 of 100 (Routine)
St Georges	Canada	Record low minimum temperature	-7.2 C (19.0 F)	16 of 100 (Routine)
Kustanai	Kazakhstan	Record daily precipitation	4.6 mm (0.18 in)	16 of 100 (Routine)

Counts by Type and Timescale

268 records

Records set or tied on 30 April 1939 by type: Highest daily maximum 54, Lowest daily maximum 11, Highest daily minimum 67, Lowest daily minimum 71, Heaviest daily rainfall 59, Heaviest daily snowfall 6.

Records on 30 April 1939 by type
Record type	Records
Highest daily maximum	54
Lowest daily maximum	11
Highest daily minimum	67
Lowest daily minimum	71
Heaviest daily rainfall	59
Heaviest daily snowfall	6
Deepest snow cover	0

Records on 30 April 1939 by timescale: all-time 0, monthly 20, daily 248.

How Much Records Were Beaten By

195 broken records

Margins by which the 195 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.0. Ties are not counted.

Top 20 by Significance

30 April 1939

Top 20 records on 30 April 1939 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 April 1939	Wolfville, CA	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	67 years	37 of 100 (Notable)
30 April 1939	Windsor Kings College, CA	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	66 years	35 of 100 (Notable)
30 April 1939	Russell, CA	monthly high max	30.0 C (86.0 F)	1.7 C (3.1 F)	48 years	31 of 100 (Routine)
30 April 1939	Parrsboro, CA	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	41 years	31 of 100 (Routine)
30 April 1939	Lugansk, UA	daily rain	25.4 mm (1.0 in)	7.4 mm (0.29 in)	30 years	30 of 100 (Routine)
30 April 1939	Prince Albert, CA	monthly high min	14.4 C (57.9 F)	3.3 C (5.9 F)	33 years	29 of 100 (Routine)
30 April 1939	Bottineau, US	monthly high min	11.1 C (52.0 F)	1.1 C (2.0 F)	44 years	29 of 100 (Routine)
30 April 1939	Dauphin, CA	monthly high max	32.2 C (90.0 F)	2.2 C (4.0 F)	33 years	26 of 100 (Routine)
30 April 1939	Anklam, DE	monthly rain	27.7 mm (1.1 in)	1.7 mm (0.07 in)	19 years	25 of 100 (Routine)
30 April 1939	Lovell, US	monthly high max	32.2 C (90.0 F)	2.2 C (4.0 F)	29 years	25 of 100 (Routine)
30 April 1939	Norway House, CA	daily high max	27.2 C (81.0 F)	6.6 C (11.9 F)	34 years	24 of 100 (Routine)
30 April 1939	Southport 5 N, US	daily low min	4.4 C (39.9 F)	2.8 C (5.0 F)	46 years	24 of 100 (Routine)
30 April 1939	Sydney, CA	daily snowfall	5.1 cm (2.0 in)	2.6 cm (1.0 in)	42 years	23 of 100 (Routine)
30 April 1939	Greiz-Dolau, DE	monthly rain	25.8 mm (1.0 in)	3.1 mm (0.12 in)	5 years	23 of 100 (Routine)
30 April 1939	New London, US	monthly high min	16.7 C (62.1 F)	1.1 C (2.0 F)	24 years	23 of 100 (Routine)
30 April 1939	Scipio, US	daily high min	10.0 C (50.0 F)	3.9 C (7.0 F)	36 years	22 of 100 (Routine)
30 April 1939	Grenfell, CA	daily high min	12.2 C (54.0 F)	3.9 C (7.0 F)	34 years	21 of 100 (Routine)
30 April 1939	Hubbard, CA	monthly high max	27.8 C (82.0 F)	0.6 C (1.1 F)	29 years	21 of 100 (Routine)
30 April 1939	Oxford, GB	daily rain	15.5 mm (0.6 in)	4.3 mm (0.17 in)	30 years	20 of 100 (Routine)
30 April 1939	Gabyon, AU	daily rain	13.5 mm (0.5 in)	13.5 mm (0.5 in)	44 years	20 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

1795 to 1939

Records set or tied on this calendar date in each year from 1795 to 1939. 1939 had 268 records.

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

Records on 04-30 in each year
Year	Records
1795	1
1804	1
1809	1
1812	1
1814	2
1833	1
1840	1
1848	1
1850	1
1853	1
1854	1
1856	1
1859	1
1862	1
1864	1
1865	1
1866	3
1872	1
1873	1
1874	2
1876	1
1878	4
1879	2
1880	1
1881	1
1882	1
1884	1
1885	1
1886	5
1888	1
1889	1
1891	5
1892	7
1894	1
1895	5
1896	3
1897	2
1898	6
1899	11
1900	4
1901	8
1902	13
1903	21
1904	11
1905	9
1906	16
1907	35
1908	28
1909	74
1910	17
1911	19
1912	18
1913	62
1914	8
1915	20
1916	21
1917	25
1918	28
1919	130
1920	70
1921	54
1922	138
1923	42
1924	96
1925	210
1926	331
1927	127
1928	130
1929	119
1930	232
1931	548
1932	145
1933	422
1934	443
1935	327
1936	373
1937	228
1938	282
1939	268
1940	526
1941	484
1942	1,163
1943	470
1944	286
1945	314
1946	301
1947	330
1948	912
1949	447
1950	671
1951	783
1952	435
1953	635
1954	1,224
1955	1,252
1956	908
1957	401
1958	482
1959	575
1960	507
1961	381
1962	617
1963	730
1964	339
1965	488
1966	740
1967	914
1968	928
1969	587
1970	1,189
1971	365
1972	497
1973	398
1974	822
1975	468
1976	783
1977	525
1978	631
1979	675
1980	545
1981	1,342
1982	504
1983	1,154
1984	1,519
1985	650
1986	660
1987	1,437
1988	808
1989	674
1990	977
1991	828
1992	1,808
1993	765
1994	1,499
1995	1,007
1996	1,637
1997	764
1998	857
1999	1,012
2000	1,046
2001	900
2002	1,171
2003	927
2004	703
2005	1,113
2006	778
2007	996
2008	1,260
2009	660
2010	921
2011	636
2012	819
2013	732
2014	946
2015	380
2016	969
2017	1,450
2018	708
2019	700
2020	1,476
2021	1,167
2022	499
2023	782
2024	705
2025	489
2026	365

Download the Data

Data for records on 1939-04-30: 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	190
20 to 40	2
40 to 60	2
60 to 80	0
80 to 100	0
100 to 120	1