Weather Records on 30 April 1971

365 weather records were set or tied worldwide on 30 April 1971. Highest significance: Chasm Falls, US.

Key Facts for 30 April 1971

On 30 April 1971, 365 weather records were set or tied at long-record stations worldwide.
47 were record highs and 198 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 7 monthly and 357 daily.
Chasm Falls set a daily record snow depth of 61.0 cm (24.0 in) on 30 April 1971.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 447 records.

Record Map

365 stations

365 station records on 30 April 1971 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 April 1971: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chasm Falls	United States	Record snow depth	61.0 cm (24.0 in)	53 of 100 (Notable)
Itaporanga Dajuda	Brazil	Record daily precipitation	75.6 mm (3.0 in)	45 of 100 (Notable)
Fazenda Riacho Fundo	Brazil	Record daily precipitation	59.0 mm (2.3 in)	44 of 100 (Notable)
Alagoa Nova (Laranjeiras)	Brazil	Record daily precipitation	146.2 mm (5.8 in)	44 of 100 (Notable)
Barcelona/Aeropuerto	Spain	Record daily precipitation	30.8 mm (1.2 in)	38 of 100 (Notable)
State UNIV	United States	Record daily precipitation	73.4 mm (2.9 in)	37 of 100 (Notable)
Ft Pierce	United States	Record high maximum temperature	36.1 C (97.0 F)	36 of 100 (Notable)
Thomasville 7 NE	United States	Record daily precipitation	48.8 mm (1.9 in)	35 of 100 (Notable)
Edinburg	United States	Record low maximum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Union Springs 9 S	United States	Record daily precipitation	56.6 mm (2.2 in)	34 of 100 (Routine)
Ear Falls	Canada	Record daily snowfall	16.5 cm (6.5 in)	33 of 100 (Routine)
Morgan 1 W	United States	Record daily precipitation	44.7 mm (1.8 in)	33 of 100 (Routine)
Muenster	Germany	Record low minimum temperature	-1.6 C (29.1 F)	32 of 100 (Routine)
Evergreen	United States	Record daily precipitation	59.4 mm (2.3 in)	32 of 100 (Routine)
Cuthbert	United States	Record daily precipitation	58.9 mm (2.3 in)	32 of 100 (Routine)
Fleming	United States	Record daily precipitation	28.2 mm (1.1 in)	32 of 100 (Routine)
Nueva Rosita	Mexico	Record high minimum temperature	27.8 C (82.0 F)	31 of 100 (Routine)
Camilla 3SE	United States	Record low maximum temperature	18.3 C (64.9 F)	31 of 100 (Routine)
Bella Coola	Canada	Record low maximum temperature	7.8 C (46.0 F)	30 of 100 (Routine)
Trier	Germany	Record low minimum temperature	-3.0 C (26.6 F)	30 of 100 (Routine)
Trier-Zewen	Germany	Record low minimum temperature	-3.0 C (26.6 F)	30 of 100 (Routine)
Morgan 1 W	United States	Record low maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Tifton	United States	Record daily precipitation	54.9 mm (2.2 in)	30 of 100 (Routine)
Karasjok	Norway	Record low minimum temperature	-20.8 C (-5.4 F)	29 of 100 (Routine)
Arcade	United States	Record low maximum temperature	9.4 C (48.9 F)	29 of 100 (Routine)
Aniak AP	United States	Record low minimum temperature	-25.6 C (-14.1 F)	29 of 100 (Routine)
Nurnberg	Germany	Record low minimum temperature	-2.0 C (28.4 F)	28 of 100 (Routine)
Alapaha Exp STN	United States	Record daily precipitation	60.7 mm (2.4 in)	28 of 100 (Routine)
Windsor	United States	Record low minimum temperature	-1.1 C (30.0 F)	27 of 100 (Routine)
Ashland	United States	Record low maximum temperature	12.8 C (55.0 F)	27 of 100 (Routine)
Brunswick-McKinnon AP	United States	Record daily precipitation	46.0 mm (1.8 in)	27 of 100 (Routine)
Jackson 4 NW	United States	Record low maximum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Black Spur	Australia	Record daily precipitation	74.4 mm (2.9 in)	26 of 100 (Routine)
Altastenberg	Germany	Record low minimum temperature	-6.1 C (21.0 F)	26 of 100 (Routine)
Pontiac	United States	Record low minimum temperature	0.0 C (32.0 F)	26 of 100 (Routine)
Rockville 1 NE	United States	Record low minimum temperature	-1.1 C (30.0 F)	26 of 100 (Routine)
Cuthbert	United States	Record low maximum temperature	17.8 C (64.0 F)	25 of 100 (Routine)
Ft Gaines	United States	Record low maximum temperature	17.8 C (64.0 F)	25 of 100 (Routine)
Watertown	United States	Record low maximum temperature	6.1 C (43.0 F)	25 of 100 (Routine)
Lyon - St Exupery	France	Record daily precipitation	28.0 mm (1.1 in)	24 of 100 (Routine)
Kleve	Germany	Record low minimum temperature	-0.2 C (31.6 F)	24 of 100 (Routine)
Highland Home	United States	Record daily precipitation	69.1 mm (2.7 in)	24 of 100 (Routine)
Camilla 3SE	United States	Record daily precipitation	49.5 mm (1.9 in)	24 of 100 (Routine)
Moultrie 2 ESE	United States	Record low maximum temperature	18.3 C (64.9 F)	24 of 100 (Routine)
Kokomo 3 WSW	United States	Record low minimum temperature	-2.8 C (27.0 F)	24 of 100 (Routine)
Saint Paul Is AP	United States	Record low maximum temperature	-6.1 C (21.0 F)	24 of 100 (Routine)
Tripoli Sidi El Mesri	Libya	Record high maximum temperature	43.5 C (110.3 F)	23 of 100 (Routine)
Brantley	United States	Record daily precipitation	68.1 mm (2.7 in)	23 of 100 (Routine)
W Otis	United States	Record daily snowfall	5.1 cm (2.0 in)	23 of 100 (Routine)
Waynesboro 2 W	United States	Record low maximum temperature	19.4 C (66.9 F)	23 of 100 (Routine)
Bones I Bardu	Norway	Record snow depth	127.0 cm (50.0 in)	22 of 100 (Routine)
Ft Lauderdale	United States	Record high maximum temperature	34.4 C (93.9 F)	22 of 100 (Routine)
Cordele	United States	Record low maximum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Farmland 5 NNW	United States	Record low minimum temperature	-3.9 C (25.0 F)	22 of 100 (Routine)
Tallulah	United States	Record low maximum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Bolivar	United States	Record low maximum temperature	5.0 C (41.0 F)	22 of 100 (Routine)
Itabaianinha	Brazil	Record daily precipitation	48.3 mm (1.9 in)	21 of 100 (Routine)
Budennovsk	Russia	Record high minimum temperature	13.9 C (57.0 F)	21 of 100 (Routine)
Masindi	Uganda	Record daily precipitation	65.2 mm (2.6 in)	21 of 100 (Routine)
Hayneville	United States	Record daily precipitation	81.3 mm (3.2 in)	21 of 100 (Routine)

Counts by Type and Timescale

365 records

Records set or tied on 30 April 1971 by type: Highest daily maximum 29, Lowest daily maximum 79, Highest daily minimum 18, Lowest daily minimum 119, Heaviest daily rainfall 107, Heaviest daily snowfall 8, Deepest snow cover 5.

Records on 30 April 1971 by type
Record type	Records
Highest daily maximum	29
Lowest daily maximum	79
Highest daily minimum	18
Lowest daily minimum	119
Heaviest daily rainfall	107
Heaviest daily snowfall	8
Deepest snow cover	5

Records on 30 April 1971 by timescale: all-time 1, monthly 7, daily 357.

How Much Records Were Beaten By

280 broken records

Margins by which the 280 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 585.0. Ties are not counted.

Top 20 by Significance

30 April 1971

Top 20 records on 30 April 1971 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 April 1971	Chasm Falls, US	daily snow depth	61.0 cm (24.0 in)	58.5 cm (23.0 in)	36 years	53 of 100 (Notable)
30 April 1971	Itaporanga Dajuda, BR	daily rain	75.6 mm (3.0 in)	41.7 mm (1.6 in)	37 years	45 of 100 (Notable)
30 April 1971	Fazenda Riacho Fundo, BR	daily rain	59.0 mm (2.3 in)	49.4 mm (1.9 in)	33 years	44 of 100 (Notable)
30 April 1971	Alagoa Nova (Laranjeiras), BR	monthly rain	146.2 mm (5.8 in)	43.8 mm (1.7 in)	4 years	44 of 100 (Notable)
30 April 1971	Barcelona/Aeropuerto, ES	daily rain	30.8 mm (1.2 in)	23.3 mm (0.9 in)	30 years	38 of 100 (Notable)
30 April 1971	State UNIV, US	daily rain	73.4 mm (2.9 in)	17.3 mm (0.7 in)	64 years	37 of 100 (Notable)
30 April 1971	Ft Pierce, US	monthly high max	36.1 C (97.0 F)	0.5 C (0.9 F)	63 years	36 of 100 (Notable)
30 April 1971	Thomasville 7 NE, US	daily rain	48.8 mm (1.9 in)	22.9 mm (0.9 in)	52 years	35 of 100 (Notable)
30 April 1971	Edinburg, US	daily low max	15.0 C (59.0 F)	5.0 C (9.0 F)	62 years	35 of 100 (Notable)
30 April 1971	Union Springs 9 S, US	daily rain	56.6 mm (2.2 in)	10.9 mm (0.4 in)	70 years	34 of 100 (Routine)
30 April 1971	Ear Falls, CA	daily snowfall	16.5 cm (6.5 in)	10.1 cm (4.0 in)	20 years	33 of 100 (Routine)
30 April 1971	Morgan 1 W, US	daily rain	44.7 mm (1.8 in)	11.7 mm (0.5 in)	61 years	33 of 100 (Routine)
30 April 1971	Muenster, DE	daily low min	-1.6 C (29.1 F)	0.4 C (0.7 F)	78 years	32 of 100 (Routine)
30 April 1971	Evergreen, US	daily rain	59.4 mm (2.3 in)	22.6 mm (0.9 in)	52 years	32 of 100 (Routine)
30 April 1971	Cuthbert, US	daily rain	58.9 mm (2.3 in)	14.4 mm (0.6 in)	61 years	32 of 100 (Routine)
30 April 1971	Fleming, US	daily rain	28.2 mm (1.1 in)	6.6 mm (0.26 in)	70 years	32 of 100 (Routine)
30 April 1971	Nueva Rosita, MX	monthly high min	27.8 C (82.0 F)	2.8 C (5.0 F)	39 years	31 of 100 (Routine)
30 April 1971	Camilla 3SE, US	daily low max	18.3 C (64.9 F)	5.6 C (10.1 F)	30 years	31 of 100 (Routine)
30 April 1971	Bella Coola, CA	daily low max	7.8 C (46.0 F)	0.5 C (0.9 F)	73 years	30 of 100 (Routine)
30 April 1971	Trier, DE	daily low min	-3.0 C (26.6 F)	2.5 C (4.5 F)	58 years	30 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 1971

Records set or tied on this calendar date in each year from 1795 to 1971. 1971 had 365 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 1971-04-30: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 100	277
100 to 200	1
200 to 300	1
300 to 400	0
400 to 500	0
500 to 600	1