Weather Records on 30 April 1975

468 weather records were set or tied worldwide on 30 April 1975. Highest significance: Volnovakha, UA.

Key Facts for 30 April 1975

On 30 April 1975, 468 weather records were set or tied at long-record stations worldwide.
143 were record highs and 145 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 29 monthly and 439 daily.
Volnovakha set a monthly record daily precipitation of 48.0 mm (1.9 in) on 30 April 1975.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 447 records.

Record Map

468 stations

468 station records on 30 April 1975 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 April 1975: highest significance records shown on the map
Station	Country	Type	Value	Significance
Volnovakha	Ukraine	Record daily precipitation	48.0 mm (1.9 in)	58 of 100 (Notable)
Kansk	Russia	Record daily precipitation	53.1 mm (2.1 in)	54 of 100 (Notable)
Sandstone	Australia	Record daily precipitation	56.0 mm (2.2 in)	50 of 100 (Notable)
Zaporoz'e	Ukraine	Record daily precipitation	32.1 mm (1.3 in)	50 of 100 (Notable)
Murray	United States	Record daily precipitation	71.4 mm (2.8 in)	49 of 100 (Notable)
Nazarezinho (Nazare)	Brazil	Record daily precipitation	88.2 mm (3.5 in)	48 of 100 (Notable)
Ai-Petri	Ukraine	Record daily precipitation	31.4 mm (1.2 in)	48 of 100 (Notable)
Hayden	United States	Record daily snowfall	10.2 cm (4.0 in)	48 of 100 (Notable)
Ndumu	South Africa	Record daily precipitation	53.5 mm (2.1 in)	44 of 100 (Notable)
Boqueirao Do Patu	Brazil	Record daily precipitation	66.6 mm (2.6 in)	40 of 100 (Notable)
Soldier Summit	United States	Record low minimum temperature	-12.2 C (10.0 F)	38 of 100 (Notable)
Chemult	United States	Record snow depth	63.5 cm (25.0 in)	37 of 100 (Notable)
Corsicana	United States	Record daily precipitation	101.9 mm (4.0 in)	36 of 100 (Notable)
Nikopol	Ukraine	Record daily precipitation	32.4 mm (1.3 in)	35 of 100 (Notable)
Bastrop	United States	Record daily precipitation	82.6 mm (3.3 in)	35 of 100 (Notable)
Farmington	United States	Record low minimum temperature	-5.0 C (23.0 F)	34 of 100 (Routine)
South Nietta	Australia	Record daily precipitation	54.0 mm (2.1 in)	33 of 100 (Routine)
Gunnison 3SW	United States	Record low minimum temperature	-11.1 C (12.0 F)	33 of 100 (Routine)
Laguna	United States	Record low minimum temperature	-5.0 C (23.0 F)	33 of 100 (Routine)
Bonito de Santa Fe	Brazil	Record daily precipitation	91.3 mm (3.6 in)	32 of 100 (Routine)
Siloam Springs 1E	United States	Record daily precipitation	52.1 mm (2.1 in)	31 of 100 (Routine)
Cimarron 4 SW	United States	Record low minimum temperature	-8.3 C (17.1 F)	31 of 100 (Routine)
New Castle	United States	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Gagrskiy	Georgia	Record daily precipitation	41.9 mm (1.6 in)	30 of 100 (Routine)
Macklin	Canada	Record daily snowfall	5.3 cm (2.1 in)	29 of 100 (Routine)
Kurgan	Russia	Record high minimum temperature	15.3 C (59.5 F)	29 of 100 (Routine)
Socorro	United States	Record low minimum temperature	-1.1 C (30.0 F)	29 of 100 (Routine)
Richfield Radio Ksvc	United States	Record low minimum temperature	-7.2 C (19.0 F)	29 of 100 (Routine)
Princeton	United States	Record daily precipitation	41.4 mm (1.6 in)	29 of 100 (Routine)
Baton Rouge Metro AP	United States	Record daily precipitation	99.6 mm (3.9 in)	29 of 100 (Routine)
Orebro	Sweden	Record high minimum temperature	9.5 C (49.1 F)	28 of 100 (Routine)
Silverton	United States	Record low minimum temperature	-17.2 C (1.0 F)	28 of 100 (Routine)
Bartow 1SE	United States	Record high maximum temperature	35.6 C (96.1 F)	28 of 100 (Routine)
Carrizozo 1SW	United States	Record low minimum temperature	-3.3 C (26.1 F)	28 of 100 (Routine)
Santuck	United States	Record high minimum temperature	17.8 C (64.0 F)	28 of 100 (Routine)
Semjachik	Russia	Record daily precipitation	37.9 mm (1.5 in)	27 of 100 (Routine)
Orebro	Sweden	Record high maximum temperature	23.1 C (73.6 F)	27 of 100 (Routine)
Calhoun 2 N	United States	Record daily precipitation	70.9 mm (2.8 in)	27 of 100 (Routine)
Janaul	Russia	Record high minimum temperature	12.3 C (54.1 F)	26 of 100 (Routine)
Ingwavuma (Tnk)	South Africa	Record daily precipitation	37.0 mm (1.5 in)	26 of 100 (Routine)
Fruitland	United States	Record low minimum temperature	-12.2 C (10.0 F)	26 of 100 (Routine)
Union 3 SSE	United States	Record daily precipitation	27.7 mm (1.1 in)	26 of 100 (Routine)
Monticello Muni AP	United States	Record daily precipitation	45.2 mm (1.8 in)	26 of 100 (Routine)
Liffey	Australia	Record daily precipitation	27.0 mm (1.1 in)	25 of 100 (Routine)
Shadrinsk	Russia	Record high minimum temperature	16.7 C (62.1 F)	25 of 100 (Routine)
Brockton	United States	Record low minimum temperature	-2.8 C (27.0 F)	25 of 100 (Routine)
Cradle Valley (Waldheim)	Australia	Record daily precipitation	31.4 mm (1.2 in)	24 of 100 (Routine)
Algodoes	Brazil	Record daily precipitation	46.2 mm (1.8 in)	24 of 100 (Routine)
Kristinehamn	Sweden	Record high minimum temperature	10.0 C (50.0 F)	24 of 100 (Routine)
Saguache	United States	Record low minimum temperature	-12.2 C (10.0 F)	24 of 100 (Routine)
Hebgen Dam	United States	Record snow depth	99.1 cm (39.0 in)	24 of 100 (Routine)
Pilot Rock 1 SE	United States	Record low minimum temperature	-3.3 C (26.1 F)	24 of 100 (Routine)
Alta 1 NNW	United States	Record low minimum temperature	-13.3 C (8.1 F)	24 of 100 (Routine)
Gammelkroppa	Sweden	Record high minimum temperature	9.1 C (48.4 F)	23 of 100 (Routine)
Sugartown	United States	Record daily precipitation	63.5 mm (2.5 in)	23 of 100 (Routine)
Chestnut Hill	United States	Record low minimum temperature	-1.1 C (30.0 F)	23 of 100 (Routine)
Rodeo (Smn)	Mexico	Record low minimum temperature	3.9 C (39.0 F)	22 of 100 (Routine)
Villagran (Smn)	Mexico	Record high minimum temperature	23.9 C (75.0 F)	22 of 100 (Routine)
Hartbeesfontein (Skl)	South Africa	Record daily precipitation	40.0 mm (1.6 in)	22 of 100 (Routine)
Salem	United States	Record daily precipitation	60.5 mm (2.4 in)	22 of 100 (Routine)

Counts by Type and Timescale

468 records

Records set or tied on 30 April 1975 by type: Highest daily maximum 74, Lowest daily maximum 25, Highest daily minimum 69, Lowest daily minimum 120, Heaviest daily rainfall 157, Heaviest daily snowfall 13, Deepest snow cover 10.

Records on 30 April 1975 by type
Record type	Records
Highest daily maximum	74
Lowest daily maximum	25
Highest daily minimum	69
Lowest daily minimum	120
Heaviest daily rainfall	157
Heaviest daily snowfall	13
Deepest snow cover	10

Records on 30 April 1975 by timescale: all-time 0, monthly 29, daily 439.

How Much Records Were Beaten By

362 broken records

Margins by which the 362 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 635.0. Ties are not counted.

Top 20 by Significance

30 April 1975

Top 20 records on 30 April 1975 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 April 1975	Volnovakha, UA	monthly rain	48.0 mm (1.9 in)	19.6 mm (0.8 in)	14 years	58 of 100 (Notable)
30 April 1975	Kansk, RU	monthly rain	53.1 mm (2.1 in)	29.2 mm (1.1 in)	1 year	54 of 100 (Notable)
30 April 1975	Sandstone, AU	monthly rain	56.0 mm (2.2 in)	19.2 mm (0.8 in)	11 years	50 of 100 (Notable)
30 April 1975	Zaporoz'e, UA	daily rain	32.1 mm (1.3 in)	20.5 mm (0.8 in)	28 years	50 of 100 (Notable)
30 April 1975	Murray, US	daily rain	71.4 mm (2.8 in)	50.1 mm (2.0 in)	21 years	49 of 100 (Notable)
30 April 1975	Nazarezinho (Nazare), BR	daily rain	88.2 mm (3.5 in)	77.9 mm (3.1 in)	13 years	48 of 100 (Notable)
30 April 1975	Ai-Petri, UA	daily rain	31.4 mm (1.2 in)	15.8 mm (0.6 in)	62 years	48 of 100 (Notable)
30 April 1975	Hayden, US	daily snowfall	10.2 cm (4.0 in)	9.9 cm (3.9 in)	65 years	48 of 100 (Notable)
30 April 1975	Ndumu, ZA	daily rain	53.5 mm (2.1 in)	33.2 mm (1.3 in)	52 years	44 of 100 (Notable)
30 April 1975	Boqueirao Do Patu, BR	daily rain	66.6 mm (2.6 in)	51.4 mm (2.0 in)	1 year	40 of 100 (Notable)
30 April 1975	Soldier Summit, US	daily low min	-12.2 C (10.0 F)	3.3 C (5.9 F)	78 years	38 of 100 (Notable)
30 April 1975	Chemult, US	daily snow depth	63.5 cm (25.0 in)	63.5 cm (25.0 in)	36 years	37 of 100 (Notable)
30 April 1975	Corsicana, US	daily rain	101.9 mm (4.0 in)	38.9 mm (1.5 in)	28 years	36 of 100 (Notable)
30 April 1975	Nikopol, UA	monthly rain	32.4 mm (1.3 in)	7.8 mm (0.31 in)	17 years	35 of 100 (Notable)
30 April 1975	Bastrop, US	daily rain	82.6 mm (3.3 in)	38.4 mm (1.5 in)	34 years	35 of 100 (Notable)
30 April 1975	Farmington, US	daily low min	-5.0 C (23.0 F)	1.1 C (2.0 F)	80 years	34 of 100 (Routine)
30 April 1975	South Nietta, AU	daily rain	54.0 mm (2.1 in)	21.0 mm (0.8 in)	46 years	33 of 100 (Routine)
30 April 1975	Gunnison 3SW, US	daily low min	-11.1 C (12.0 F)	1.1 C (2.0 F)	78 years	33 of 100 (Routine)
30 April 1975	Laguna, US	daily low min	-5.0 C (23.0 F)	2.8 C (5.0 F)	68 years	33 of 100 (Routine)
30 April 1975	Bonito de Santa Fe, BR	daily rain	91.3 mm (3.6 in)	55.9 mm (2.2 in)	9 years	32 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 1975

Records set or tied on this calendar date in each year from 1795 to 1975. 1975 had 468 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 1975-04-30: 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	359
100 to 200	1
200 to 300	1
300 to 400	0
400 to 500	0
500 to 600	0
600 to 700	1