Weather Records on 30 April 2009

660 weather records were set or tied worldwide on 30 April 2009. Highest significance: Marietta 5SW, US.

Key Facts for 30 April 2009

On 30 April 2009, 660 weather records were set or tied at long-record stations worldwide.
290 were record highs and 177 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 64 monthly and 594 daily.
Marietta 5SW set an all-time record daily precipitation of 325.6 mm (12.8 in) on 30 April 2009.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 445 records.

Record Map

660 stations

660 station records on 30 April 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 April 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Marietta 5SW	United States	Record daily precipitation	325.6 mm (12.8 in)	75 of 100 (Major)
Palisade	United States	Record daily precipitation	45.2 mm (1.8 in)	68 of 100 (Major)
Marlow 1 WSW	United States	Record daily precipitation	124.7 mm (4.9 in)	66 of 100 (Major)
Bowie	United States	Record daily precipitation	120.7 mm (4.8 in)	62 of 100 (Major)
St-Girons	France	Record daily precipitation	49.6 mm (2.0 in)	56 of 100 (Notable)
Forestburg 5 S	United States	Record daily precipitation	89.2 mm (3.5 in)	56 of 100 (Notable)
Muenster	United States	Record daily precipitation	188.7 mm (7.4 in)	56 of 100 (Notable)
Brockway 3 WSW	United States	Record daily precipitation	31.8 mm (1.3 in)	54 of 100 (Notable)
Cascade 5 S	United States	Record snow depth	33.0 cm (13.0 in)	54 of 100 (Notable)
Madill	United States	Record daily precipitation	119.4 mm (4.7 in)	54 of 100 (Notable)
Long Creek	United States	Record daily snowfall	7.9 cm (3.1 in)	52 of 100 (Notable)
Paris 5 S	United States	Record daily precipitation	68.6 mm (2.7 in)	51 of 100 (Notable)
Comanche	United States	Record daily precipitation	145.8 mm (5.7 in)	51 of 100 (Notable)
Chester	United States	Record daily snowfall	6.6 cm (2.6 in)	50 of 100 (Notable)
Valentine	United States	Record daily snowfall	5.1 cm (2.0 in)	50 of 100 (Notable)
Walters	United States	Record daily precipitation	116.8 mm (4.6 in)	50 of 100 (Notable)
Antelope	United States	Record daily precipitation	113.5 mm (4.5 in)	50 of 100 (Notable)
Tarbes - Ossun	France	Record daily precipitation	61.0 mm (2.4 in)	48 of 100 (Notable)
Great Falls AP	United States	Record snow depth	43.2 cm (17.0 in)	48 of 100 (Notable)
Washington	United States	Record daily precipitation	40.4 mm (1.6 in)	47 of 100 (Notable)
Wildrose 3NW	United States	Record daily snowfall	7.6 cm (3.0 in)	47 of 100 (Notable)
Arlington 1 W	United States	Record daily snowfall	10.2 cm (4.0 in)	47 of 100 (Notable)
Mexico	United States	Record daily precipitation	75.4 mm (3.0 in)	45 of 100 (Notable)
Chickasaw Nra	United States	Record daily precipitation	122.2 mm (4.8 in)	45 of 100 (Notable)
Nordoyan Fyr	Norway	Record high maximum temperature	17.3 C (63.1 F)	44 of 100 (Notable)
Valier	United States	Record snow depth	30.5 cm (12.0 in)	44 of 100 (Notable)
Mt Vernon	United States	Record daily precipitation	65.3 mm (2.6 in)	44 of 100 (Notable)
Frederick	United States	Record daily precipitation	88.1 mm (3.5 in)	43 of 100 (Notable)
Sanya	China	Record low maximum temperature	23.7 C (74.7 F)	42 of 100 (Notable)
Kristianstad	Sweden	Record high maximum temperature	21.6 C (70.9 F)	42 of 100 (Notable)
Mohall	United States	Record daily precipitation	26.7 mm (1.1 in)	42 of 100 (Notable)
Heppner	United States	Record low maximum temperature	7.2 C (45.0 F)	42 of 100 (Notable)
Hobart (Ellerslie Road)	Australia	Record low minimum temperature	1.3 C (34.3 F)	41 of 100 (Notable)
Palmyra	United States	Record daily precipitation	52.6 mm (2.1 in)	41 of 100 (Notable)
Gladstone L/D 18	United States	Record daily precipitation	55.9 mm (2.2 in)	40 of 100 (Notable)
Quincy Dam 21	United States	Record daily precipitation	53.8 mm (2.1 in)	40 of 100 (Notable)
Echeverria	Mexico	Record low minimum temperature	0.0 C (32.0 F)	39 of 100 (Notable)
Markovo	Russia	Record low minimum temperature	-30.4 C (-22.7 F)	39 of 100 (Notable)
El Capitan Dam	United States	Record low minimum temperature	-1.1 C (30.0 F)	39 of 100 (Notable)
Warren	United States	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Jordan	United States	Record daily precipitation	25.4 mm (1.0 in)	39 of 100 (Notable)
Lake Kemp	United States	Record daily precipitation	55.1 mm (2.2 in)	39 of 100 (Notable)
Essendon Airport	Australia	Record low minimum temperature	0.6 C (33.1 F)	38 of 100 (Notable)
Monmouth	United States	Record daily precipitation	31.0 mm (1.2 in)	38 of 100 (Notable)
Power 6 SE	United States	Record snow depth	25.4 cm (10.0 in)	38 of 100 (Notable)
Cooper	United States	Record daily precipitation	95.8 mm (3.8 in)	38 of 100 (Notable)
Acajete	Mexico	Record low minimum temperature	1.7 C (35.1 F)	37 of 100 (Notable)
Randlett 9 E	United States	Record daily precipitation	116.8 mm (4.6 in)	37 of 100 (Notable)
Arlington 1 W	United States	Record snow depth	10.2 cm (4.0 in)	37 of 100 (Notable)
Comondu	Mexico	Record high maximum temperature	41.7 C (107.1 F)	36 of 100 (Notable)
Motozintla (Smn)	Mexico	Record high maximum temperature	33.9 C (93.0 F)	36 of 100 (Notable)
Bentley	United States	Record daily precipitation	46.7 mm (1.8 in)	36 of 100 (Notable)
Massabesic Lake	United States	Record high maximum temperature	33.3 C (91.9 F)	36 of 100 (Notable)
Mt Airy 2 W	United States	Record daily precipitation	44.7 mm (1.8 in)	36 of 100 (Notable)
Orland	Norway	Record high maximum temperature	21.4 C (70.5 F)	35 of 100 (Notable)
Charleston	United States	Record daily precipitation	40.4 mm (1.6 in)	35 of 100 (Notable)
Manley Hot Springs	United States	Record high maximum temperature	22.2 C (72.0 F)	35 of 100 (Notable)
Cajon de Pea	Mexico	Record low maximum temperature	29.4 C (84.9 F)	34 of 100 (Routine)
Orel	Russia	Record high maximum temperature	26.8 C (80.2 F)	34 of 100 (Routine)
Payson	United States	Record daily precipitation	57.7 mm (2.3 in)	34 of 100 (Routine)

Counts by Type and Timescale

660 records

Records set or tied on 30 April 2009 by type: Highest daily maximum 164, Lowest daily maximum 62, Highest daily minimum 126, Lowest daily minimum 115, Heaviest daily rainfall 153, Heaviest daily snowfall 18, Deepest snow cover 22.

Records on 30 April 2009 by type
Record type	Records
Highest daily maximum	164
Lowest daily maximum	62
Highest daily minimum	126
Lowest daily minimum	115
Heaviest daily rainfall	153
Heaviest daily snowfall	18
Deepest snow cover	22

Records on 30 April 2009 by timescale: all-time 2, monthly 64, daily 594.

How Much Records Were Beaten By

479 broken records

Margins by which the 479 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 356.0. Ties are not counted.

Top 20 by Significance

30 April 2009

Top 20 records on 30 April 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 April 2009	Marietta 5SW, US	all-time rain	325.6 mm (12.8 in)	84.8 mm (3.3 in)	27 years	75 of 100 (Major)
30 April 2009	Palisade, US	daily rain	45.2 mm (1.8 in)	27.9 mm (1.1 in)	95 years	68 of 100 (Major)
30 April 2009	Marlow 1 WSW, US	monthly rain	124.7 mm (4.9 in)	32.0 mm (1.3 in)	82 years	66 of 100 (Major)
30 April 2009	Bowie, US	daily rain	120.7 mm (4.8 in)	76.2 mm (3.0 in)	43 years	62 of 100 (Major)
30 April 2009	St-Girons, FR	daily rain	49.6 mm (2.0 in)	23.4 mm (0.9 in)	60 years	56 of 100 (Notable)
30 April 2009	Forestburg 5 S, US	daily rain	89.2 mm (3.5 in)	51.6 mm (2.0 in)	55 years	56 of 100 (Notable)
30 April 2009	Muenster, US	monthly rain	188.7 mm (7.4 in)	73.1 mm (2.9 in)	3 years	56 of 100 (Notable)
30 April 2009	Brockway 3 WSW, US	daily rain	31.8 mm (1.3 in)	25.2 mm (1.0 in)	36 years	54 of 100 (Notable)
30 April 2009	Cascade 5 S, US	daily snow depth	33.0 cm (13.0 in)	22.8 cm (9.0 in)	55 years	54 of 100 (Notable)
30 April 2009	Madill, US	daily rain	119.4 mm (4.7 in)	87.4 mm (3.4 in)	24 years	54 of 100 (Notable)
30 April 2009	Long Creek, US	daily snowfall	7.9 cm (3.1 in)	5.4 cm (2.1 in)	96 years	52 of 100 (Notable)
30 April 2009	Paris 5 S, US	daily rain	68.6 mm (2.7 in)	38.1 mm (1.5 in)	39 years	51 of 100 (Notable)
30 April 2009	Comanche, US	monthly rain	145.8 mm (5.7 in)	52.8 mm (2.1 in)	14 years	51 of 100 (Notable)
30 April 2009	Chester, US	daily snowfall	6.6 cm (2.6 in)	6.6 cm (2.6 in)	108 years	50 of 100 (Notable)
30 April 2009	Valentine, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	102 years	50 of 100 (Notable)
30 April 2009	Walters, US	monthly rain	116.8 mm (4.6 in)	40.6 mm (1.6 in)	13 years	50 of 100 (Notable)
30 April 2009	Antelope, US	daily rain	113.5 mm (4.5 in)	49.5 mm (1.9 in)	39 years	50 of 100 (Notable)
30 April 2009	Tarbes - Ossun, FR	daily rain	61.0 mm (2.4 in)	42.8 mm (1.7 in)	8 years	48 of 100 (Notable)
30 April 2009	Great Falls AP, US	daily snow depth	43.2 cm (17.0 in)	35.6 cm (14.0 in)	10 years	48 of 100 (Notable)
30 April 2009	Washington, US	daily rain	40.4 mm (1.6 in)	10.7 mm (0.4 in)	92 years	47 of 100 (Notable)

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 2009

Records set or tied on this calendar date in each year from 1795 to 2009. 2009 had 660 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 2009-04-30: 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 50	451
50 to 100	20
100 to 150	3
150 to 200	3
200 to 250	1
250 to 300	0
300 to 350	0
350 to 400	1