Weather Records on 9 April 2011

1,480 weather records were set or tied worldwide on 9 April 2011. Highest significance: Walnut Creek, US.

Key Facts for 9 April 2011

On 9 April 2011, 1,480 weather records were set or tied at long-record stations worldwide.
984 were record highs and 246 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 69 monthly and 1,409 daily.
Walnut Creek set a daily record snowfall of 20.3 cm (8.0 in) on 9 April 2011.
Across 168 earlier years (1793 to 2026) the same calendar date averaged 458 records.

Record Map

1,480 stations

1,480 station records on 9 April 2011 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 April 2011: highest significance records shown on the map
Station	Country	Type	Value	Significance
Walnut Creek	United States	Record daily snowfall	20.3 cm (8.0 in)	77 of 100 (Major)
Newkirk 5NE	United States	Record daily precipitation	96.5 mm (3.8 in)	76 of 100 (Major)
Seligman	United States	Record snow depth	17.8 cm (7.0 in)	67 of 100 (Major)
Logan	United States	Record daily precipitation	56.4 mm (2.2 in)	64 of 100 (Major)
Ely AP	United States	Record snow depth	15.2 cm (6.0 in)	58 of 100 (Notable)
Walnut Grove	United States	Record daily snowfall	7.6 cm (3.0 in)	55 of 100 (Notable)
St George	United States	Record low maximum temperature	5.6 C (42.1 F)	53 of 100 (Notable)
Longwood	Australia	Record daily precipitation	36.5 mm (1.4 in)	52 of 100 (Notable)
Bologoe	Russia	Record daily precipitation	32.0 mm (1.3 in)	52 of 100 (Notable)
Elko Rgnl AP	United States	Record snow depth	12.7 cm (5.0 in)	52 of 100 (Notable)
Walnut Canyon Nm	United States	Record daily snowfall	22.9 cm (9.0 in)	51 of 100 (Notable)
Cuyamaca	United States	Record daily snowfall	13.5 cm (5.3 in)	51 of 100 (Notable)
Lugano	Switzerland	Record high minimum temperature	14.5 C (58.1 F)	50 of 100 (Notable)
Natural Brg	United States	Record snow depth	12.7 cm (5.0 in)	50 of 100 (Notable)
Show Low AP	United States	Record daily snowfall	15.2 cm (6.0 in)	47 of 100 (Notable)
Walnut Canyon Nm	United States	Record snow depth	22.9 cm (9.0 in)	47 of 100 (Notable)
Wildrose 3NW	United States	Record daily snowfall	10.2 cm (4.0 in)	47 of 100 (Notable)
Natural Brg	United States	Record daily snowfall	12.7 cm (5.0 in)	45 of 100 (Notable)
Cape Otway Lighthouse	Australia	Record high minimum temperature	20.0 C (68.0 F)	44 of 100 (Notable)
Bordeaux-Merignac	France	Record high maximum temperature	29.7 C (85.5 F)	44 of 100 (Notable)
Progreso	Mexico	Record high minimum temperature	25.0 C (77.0 F)	44 of 100 (Notable)
Williams	United States	Record daily precipitation	35.3 mm (1.4 in)	44 of 100 (Notable)
Emory	United States	Record high maximum temperature	30.6 C (87.1 F)	44 of 100 (Notable)
Salina	United States	Record snow depth	10.2 cm (4.0 in)	44 of 100 (Notable)
Flagstaff AP	United States	Record daily snowfall	33.5 cm (13.2 in)	44 of 100 (Notable)
Port-Aux-Francais (Iles Kergu	France	Record daily precipitation	42.9 mm (1.7 in)	43 of 100 (Notable)
Albacete Los Llanos	Spain	Record high maximum temperature	29.0 C (84.2 F)	43 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record high maximum temperature	9.4 C (48.9 F)	43 of 100 (Notable)
Anna 4 N	United States	Record high maximum temperature	30.6 C (87.1 F)	43 of 100 (Notable)
Tower 2S	United States	Record high minimum temperature	3.3 C (37.9 F)	43 of 100 (Notable)
Kilauea 1134	United States	Record high minimum temperature	21.1 C (70.0 F)	43 of 100 (Notable)
Zuerich/Fluntern	Switzerland	Record high maximum temperature	22.5 C (72.5 F)	42 of 100 (Notable)
Prescott	United States	Record daily snowfall	13.5 cm (5.3 in)	42 of 100 (Notable)
Bastrop	United States	Record high maximum temperature	32.8 C (91.0 F)	42 of 100 (Notable)
Anadarko 3 E	United States	Record high maximum temperature	32.2 C (90.0 F)	42 of 100 (Notable)
Bright Angel Rs	United States	Record daily precipitation	29.2 mm (1.1 in)	41 of 100 (Notable)
Eastman 1 W	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Harrisburg	United States	Record high maximum temperature	31.7 C (89.1 F)	41 of 100 (Notable)
St Joseph 3 N	United States	Record high maximum temperature	31.7 C (89.1 F)	41 of 100 (Notable)
Bonham 3NNE	United States	Record high minimum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Sherman	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Scipio	United States	Record low maximum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Ponce 4 E	Puerto Rico [United States]	Record low minimum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Saint Bernard	United States	Record high maximum temperature	30.6 C (87.1 F)	40 of 100 (Notable)
Jerome	United States	Record snow depth	12.7 cm (5.0 in)	40 of 100 (Notable)
Salem	United States	Record high maximum temperature	32.2 C (90.0 F)	40 of 100 (Notable)
Lynch	United States	Record high minimum temperature	7.2 C (45.0 F)	40 of 100 (Notable)
Dampier Downs	Australia	Record daily precipitation	75.0 mm (3.0 in)	39 of 100 (Notable)
Greensburg	United States	Record high maximum temperature	30.6 C (87.1 F)	39 of 100 (Notable)
Eureka	United States	Record daily snowfall	10.2 cm (4.0 in)	39 of 100 (Notable)
Kanab	United States	Record low maximum temperature	5.0 C (41.0 F)	39 of 100 (Notable)
Hobart Muni AP	United States	Record high minimum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Maleny Tamarind St	Australia	Record daily precipitation	61.4 mm (2.4 in)	38 of 100 (Notable)
Tortosa - Observatorio del Ebr	Spain	Record high maximum temperature	31.2 C (88.2 F)	38 of 100 (Notable)
Lugano	Switzerland	Record high maximum temperature	31.6 C (88.9 F)	38 of 100 (Notable)
Saint Bernard	United States	Record high minimum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Prescott	United States	Record snow depth	15.2 cm (6.0 in)	38 of 100 (Notable)
Williams	United States	Record low maximum temperature	0.0 C (32.0 F)	38 of 100 (Notable)
Taylorville 2SE	United States	Record daily precipitation	33.0 mm (1.3 in)	38 of 100 (Notable)
Blackwell 1SSW	United States	Record daily precipitation	50.3 mm (2.0 in)	38 of 100 (Notable)

Counts by Type and Timescale

1,480 records

Records set or tied on 9 April 2011 by type: Highest daily maximum 615, Lowest daily maximum 165, Highest daily minimum 369, Lowest daily minimum 81, Heaviest daily rainfall 156, Heaviest daily snowfall 51, Deepest snow cover 43.

Records on 9 April 2011 by type
Record type	Records
Highest daily maximum	615
Lowest daily maximum	165
Highest daily minimum	369
Lowest daily minimum	81
Heaviest daily rainfall	156
Heaviest daily snowfall	51
Deepest snow cover	43

Records on 9 April 2011 by timescale: all-time 2, monthly 69, daily 1,409.

How Much Records Were Beaten By

1,054 broken records

Margins by which the 1,054 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

9 April 2011

Top 20 records on 9 April 2011 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 April 2011	Walnut Creek, US	daily snowfall	20.3 cm (8.0 in)	20.3 cm (8.0 in)	94 years	77 of 100 (Major)
9 April 2011	Newkirk 5NE, US	daily rain	96.5 mm (3.8 in)	59.7 mm (2.4 in)	92 years	76 of 100 (Major)
9 April 2011	Seligman, US	monthly snow depth	17.8 cm (7.0 in)	17.8 cm (7.0 in)	106 years	67 of 100 (Major)
9 April 2011	Logan, US	daily rain	56.4 mm (2.2 in)	25.9 mm (1.0 in)	84 years	64 of 100 (Major)
9 April 2011	Ely AP, US	daily snow depth	15.2 cm (6.0 in)	7.6 cm (3.0 in)	110 years	58 of 100 (Notable)
9 April 2011	Walnut Grove, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	117 years	55 of 100 (Notable)
9 April 2011	St George, US	monthly low max	5.6 C (42.1 F)	1.6 C (2.9 F)	117 years	53 of 100 (Notable)
9 April 2011	Longwood, AU	daily rain	36.5 mm (1.4 in)	12.4 mm (0.5 in)	86 years	52 of 100 (Notable)
9 April 2011	Bologoe, RU	monthly rain	32.0 mm (1.3 in)	8.8 mm (0.35 in)	35 years	52 of 100 (Notable)
9 April 2011	Elko Rgnl AP, US	daily snow depth	12.7 cm (5.0 in)	7.6 cm (3.0 in)	76 years	52 of 100 (Notable)
9 April 2011	Walnut Canyon Nm, US	daily snowfall	22.9 cm (9.0 in)	20.4 cm (8.0 in)	45 years	51 of 100 (Notable)
9 April 2011	Cuyamaca, US	daily snowfall	13.5 cm (5.3 in)	8.4 cm (3.3 in)	98 years	51 of 100 (Notable)
9 April 2011	Lugano, CH	daily high min	14.5 C (58.1 F)	3.0 C (5.4 F)	109 years	50 of 100 (Notable)
9 April 2011	Natural Brg, US	daily snow depth	12.7 cm (5.0 in)	10.2 cm (4.0 in)	109 years	50 of 100 (Notable)
9 April 2011	Show Low AP, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	44 years	47 of 100 (Notable)
9 April 2011	Walnut Canyon Nm, US	daily snow depth	22.9 cm (9.0 in)	20.4 cm (8.0 in)	45 years	47 of 100 (Notable)
9 April 2011	Wildrose 3NW, US	daily snowfall	10.2 cm (4.0 in)	7.7 cm (3.0 in)	77 years	47 of 100 (Notable)
9 April 2011	Natural Brg, US	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	66 years	45 of 100 (Notable)
9 April 2011	Cape Otway Lighthouse, AU	daily high min	20.0 C (68.0 F)	1.1 C (2.0 F)	123 years	44 of 100 (Notable)
9 April 2011	Bordeaux-Merignac, FR	daily high max	29.7 C (85.5 F)	5.3 C (9.5 F)	73 years	44 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

1793 to 2011

Records set or tied on this calendar date in each year from 1793 to 2011. 2011 had 1,480 records.

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

Records on 04-09 in each year
Year	Records
1793	2
1798	1
1800	1
1805	1
1809	2
1812	2
1815	1
1818	1
1839	1
1842	2
1844	1
1846	1
1847	1
1849	1
1854	1
1856	1
1859	1
1862	1
1863	1
1864	1
1865	2
1866	2
1869	1
1871	2
1873	1
1877	1
1883	1
1884	1
1885	3
1886	1
1887	1
1888	3
1889	1
1890	7
1892	1
1893	1
1894	2
1895	4
1896	1
1897	3
1898	3
1899	9
1900	3
1901	8
1902	8
1903	12
1904	15
1905	21
1906	20
1907	21
1908	28
1909	25
1910	19
1911	21
1912	51
1913	16
1914	41
1915	89
1916	85
1917	105
1918	29
1919	67
1920	56
1921	114
1922	140
1923	79
1924	353
1925	129
1926	83
1927	260
1928	395
1929	402
1930	430
1931	193
1932	119
1933	320
1934	310
1935	398
1936	151
1937	172
1938	378
1939	282
1940	214
1941	297
1942	432
1943	752
1944	564
1945	1,055
1946	335
1947	174
1948	365
1949	179
1950	750
1951	304
1952	578
1953	638
1954	239
1955	484
1956	371
1957	502
1958	294
1959	634
1960	623
1961	879
1962	344
1963	390
1964	645
1965	651
1966	466
1967	743
1968	669
1969	898
1970	489
1971	576
1972	1,200
1973	1,695
1974	972
1975	968
1976	347
1977	1,693
1978	921
1979	855
1980	911
1981	785
1982	1,923
1983	1,170
1984	904
1985	1,424
1986	620
1987	604
1988	737
1989	1,402
1990	888
1991	1,545
1992	641
1993	687
1994	511
1995	1,296
1996	1,547
1997	2,686
1998	1,018
1999	1,848
2000	997
2001	1,947
2002	590
2003	1,781
2004	572
2005	998
2006	603
2007	1,412
2008	1,029
2009	802
2010	652
2011	1,480
2012	640
2013	1,245
2014	592
2015	664
2016	974
2017	759
2018	1,306
2019	716
2020	916
2021	642
2022	574
2023	512
2024	1,093
2025	530
2026	517

Download the Data

Data for records on 2011-04-09: 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	1,011
50 to 100	29
100 to 150	9
150 to 200	2
200 to 250	3