Weather Records on 17 April 2009

779 weather records were set or tied worldwide on 17 April 2009. Highest significance: Schulenburg, US.

Key Facts for 17 April 2009

On 17 April 2009, 779 weather records were set or tied at long-record stations worldwide.
184 were record highs and 249 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 35 monthly and 743 daily.
Schulenburg set a monthly record daily precipitation of 249.7 mm (9.8 in) on 17 April 2009.
Across 166 earlier years (1799 to 2026) the same calendar date averaged 451 records.

Record Map

779 stations

779 station records on 17 April 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 April 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Schulenburg	United States	Record daily precipitation	249.7 mm (9.8 in)	78 of 100 (Major)
Bamberg	Germany	Record daily precipitation	37.2 mm (1.5 in)	76 of 100 (Major)
Plauen	Germany	Record daily precipitation	32.1 mm (1.3 in)	76 of 100 (Major)
Weiden	Germany	Record daily precipitation	46.2 mm (1.8 in)	73 of 100 (Major)
Uccle	Belgium	Record daily precipitation	33.8 mm (1.3 in)	71 of 100 (Major)
Boulder	United States	Record daily precipitation	65.8 mm (2.6 in)	69 of 100 (Major)
Kronach	Germany	Record daily precipitation	45.8 mm (1.8 in)	66 of 100 (Major)
Grosser Arber	Germany	Record daily precipitation	89.5 mm (3.5 in)	64 of 100 (Major)
Oberviechtach	Germany	Record daily precipitation	46.1 mm (1.8 in)	64 of 100 (Major)
Tirschenreuth-Lodermuhl	Germany	Record daily precipitation	43.1 mm (1.7 in)	62 of 100 (Major)
Heinersreuth-Vollhof	Germany	Record daily precipitation	32.2 mm (1.3 in)	61 of 100 (Major)
Schwarzburg	Germany	Record daily precipitation	40.3 mm (1.6 in)	61 of 100 (Major)
Comondu	Mexico	Record high minimum temperature	27.8 C (82.0 F)	60 of 100 (Major)
Hofheim	Germany	Record daily precipitation	30.0 mm (1.2 in)	59 of 100 (Notable)
Selb/Oberfranken-Lauterbach	Germany	Record daily precipitation	31.2 mm (1.2 in)	59 of 100 (Notable)
Ebrach	Germany	Record daily precipitation	43.7 mm (1.7 in)	57 of 100 (Notable)
Center 4 SSW	United States	Record daily snowfall	14.0 cm (5.5 in)	57 of 100 (Notable)
Elk Mtn	United States	Record daily snowfall	54.6 cm (21.5 in)	57 of 100 (Notable)
Pemfling-Pitzling	Germany	Record daily precipitation	39.1 mm (1.5 in)	56 of 100 (Notable)
Winona	United States	Record daily precipitation	27.2 mm (1.1 in)	56 of 100 (Notable)
Bad-Sohl Elster	Germany	Record daily precipitation	27.3 mm (1.1 in)	55 of 100 (Notable)
Tulia	United States	Record daily precipitation	149.9 mm (5.9 in)	55 of 100 (Notable)
Bad Konigshofen	Germany	Record daily precipitation	25.4 mm (1.0 in)	54 of 100 (Notable)
Sublette 7WSW	United States	Record daily precipitation	66.3 mm (2.6 in)	54 of 100 (Notable)
Harper 3ENE	United States	Record daily precipitation	73.7 mm (2.9 in)	53 of 100 (Notable)
Briggsdale	United States	Record daily precipitation	48.5 mm (1.9 in)	52 of 100 (Notable)
Otis	United States	Record daily precipitation	25.4 mm (1.0 in)	52 of 100 (Notable)
Porphyry Creek	United States	Record daily precipitation	53.3 mm (2.1 in)	52 of 100 (Notable)
Marienberg	Germany	Record daily precipitation	38.5 mm (1.5 in)	51 of 100 (Notable)
Fichtelberg	Germany	Record daily precipitation	31.7 mm (1.2 in)	50 of 100 (Notable)
Bad Lobenstein	Germany	Record daily precipitation	38.9 mm (1.5 in)	50 of 100 (Notable)
Schleiz	Germany	Record daily precipitation	30.9 mm (1.2 in)	50 of 100 (Notable)
Lautertal-Oberlauter	Germany	Record daily precipitation	47.6 mm (1.9 in)	50 of 100 (Notable)
Ft Grant	United States	Record low maximum temperature	11.7 C (53.1 F)	49 of 100 (Notable)
Garden City Exp STN	United States	Record daily precipitation	52.8 mm (2.1 in)	49 of 100 (Notable)
Phillips	United States	Record daily precipitation	36.8 mm (1.4 in)	49 of 100 (Notable)
Cheyenne	United States	Record daily snowfall	24.9 cm (9.8 in)	49 of 100 (Notable)
Fichtelberg/Oberfranken-Huttst	Germany	Record daily precipitation	50.5 mm (2.0 in)	48 of 100 (Notable)
Freystadt-Oberndorf	Germany	Record daily precipitation	29.8 mm (1.2 in)	48 of 100 (Notable)
Liberal	United States	Record daily precipitation	54.6 mm (2.1 in)	48 of 100 (Notable)
Crescent Lake Nwr	United States	Record daily precipitation	29.5 mm (1.2 in)	48 of 100 (Notable)
La Grange	United States	Record daily precipitation	53.8 mm (2.1 in)	48 of 100 (Notable)
Nurnberg-Netzstall	Germany	Record daily precipitation	37.6 mm (1.5 in)	47 of 100 (Notable)
Ellsworth 2W	United States	Record daily precipitation	26.9 mm (1.1 in)	47 of 100 (Notable)
Farson 2NNE	United States	Record daily snowfall	10.2 cm (4.0 in)	47 of 100 (Notable)
Stammbach-Querenbach	Germany	Record daily precipitation	39.0 mm (1.5 in)	46 of 100 (Notable)
Georgetown	United States	Record daily precipitation	28.7 mm (1.1 in)	46 of 100 (Notable)
Cerro	United States	Record snow depth	12.7 cm (5.0 in)	46 of 100 (Notable)
Fredericksburg	United States	Record daily precipitation	49.0 mm (1.9 in)	46 of 100 (Notable)
University Camp	United States	Record daily precipitation	50.8 mm (2.0 in)	46 of 100 (Notable)
Neustadt Am Kulm-Filchendorf	Germany	Record daily precipitation	41.3 mm (1.6 in)	45 of 100 (Notable)
Ft Grant	United States	Record low minimum temperature	0.0 C (32.0 F)	45 of 100 (Notable)
Aachen	Germany	Record daily precipitation	27.9 mm (1.1 in)	44 of 100 (Notable)
Lake City	United States	Record daily snowfall	20.3 cm (8.0 in)	44 of 100 (Notable)
Manassa	United States	Record daily snowfall	10.2 cm (4.0 in)	44 of 100 (Notable)
Ft Robinson	United States	Record daily precipitation	29.2 mm (1.1 in)	44 of 100 (Notable)
Giddings 5E	United States	Record daily precipitation	130.6 mm (5.1 in)	44 of 100 (Notable)
Farson 2NNE	United States	Record snow depth	10.2 cm (4.0 in)	44 of 100 (Notable)
Koln-Stammheim	Germany	Record daily precipitation	25.2 mm (1.0 in)	43 of 100 (Notable)
Holyoke	United States	Record daily precipitation	27.9 mm (1.1 in)	43 of 100 (Notable)

Counts by Type and Timescale

779 records

Records set or tied on 17 April 2009 by type: Highest daily maximum 66, Lowest daily maximum 97, Highest daily minimum 118, Lowest daily minimum 152, Heaviest daily rainfall 282, Heaviest daily snowfall 32, Deepest snow cover 32.

Records on 17 April 2009 by type
Record type	Records
Highest daily maximum	66
Lowest daily maximum	97
Highest daily minimum	118
Lowest daily minimum	152
Heaviest daily rainfall	282
Heaviest daily snowfall	32
Deepest snow cover	32

Records on 17 April 2009 by timescale: all-time 1, monthly 35, daily 743.

How Much Records Were Beaten By

610 broken records

Margins by which the 610 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

17 April 2009

Top 20 records on 17 April 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 April 2009	Schulenburg, US	monthly rain	249.7 mm (9.8 in)	117.1 mm (4.6 in)	67 years	78 of 100 (Major)
17 April 2009	Bamberg, DE	daily rain	37.2 mm (1.5 in)	23.8 mm (0.9 in)	87 years	76 of 100 (Major)
17 April 2009	Plauen, DE	daily rain	32.1 mm (1.3 in)	16.2 mm (0.6 in)	103 years	76 of 100 (Major)
17 April 2009	Weiden, DE	monthly rain	46.2 mm (1.8 in)	23.0 mm (0.9 in)	58 years	73 of 100 (Major)
17 April 2009	Uccle, BE	daily rain	33.8 mm (1.3 in)	15.8 mm (0.6 in)	75 years	71 of 100 (Major)
17 April 2009	Boulder, US	daily rain	65.8 mm (2.6 in)	43.7 mm (1.7 in)	64 years	69 of 100 (Major)
17 April 2009	Kronach, DE	daily rain	45.8 mm (1.8 in)	25.8 mm (1.0 in)	64 years	66 of 100 (Major)
17 April 2009	Grosser Arber, DE	monthly rain	89.5 mm (3.5 in)	43.5 mm (1.7 in)	28 years	64 of 100 (Major)
17 April 2009	Oberviechtach, DE	monthly rain	46.1 mm (1.8 in)	20.3 mm (0.8 in)	28 years	64 of 100 (Major)
17 April 2009	Tirschenreuth-Lodermuhl, DE	monthly rain	43.1 mm (1.7 in)	16.2 mm (0.6 in)	22 years	62 of 100 (Major)
17 April 2009	Heinersreuth-Vollhof, DE	daily rain	32.2 mm (1.3 in)	8.1 mm (0.32 in)	129 years	61 of 100 (Major)
17 April 2009	Schwarzburg, DE	daily rain	40.3 mm (1.6 in)	28.4 mm (1.1 in)	52 years	61 of 100 (Major)
17 April 2009	Comondu, MX	daily high min	27.8 C (82.0 F)	10.0 C (18.0 F)	72 years	60 of 100 (Major)
17 April 2009	Hofheim, DE	daily rain	30.0 mm (1.2 in)	19.4 mm (0.8 in)	44 years	59 of 100 (Notable)
17 April 2009	Selb/Oberfranken-Lauterbach, DE	daily rain	31.2 mm (1.2 in)	17.2 mm (0.7 in)	44 years	59 of 100 (Notable)
17 April 2009	Ebrach, DE	daily rain	43.7 mm (1.7 in)	14.2 mm (0.6 in)	64 years	57 of 100 (Notable)
17 April 2009	Center 4 SSW, US	daily snowfall	14.0 cm (5.5 in)	14.0 cm (5.5 in)	67 years	57 of 100 (Notable)
17 April 2009	Elk Mtn, US	daily snowfall	54.6 cm (21.5 in)	29.2 cm (11.5 in)	40 years	57 of 100 (Notable)
17 April 2009	Pemfling-Pitzling, DE	daily rain	39.1 mm (1.5 in)	11.7 mm (0.5 in)	74 years	56 of 100 (Notable)
17 April 2009	Winona, US	daily rain	27.2 mm (1.1 in)	14.5 mm (0.6 in)	110 years	56 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

1799 to 2009

Records set or tied on this calendar date in each year from 1799 to 2009. 2009 had 779 records.

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

Records on 04-17 in each year
Year	Records
1799	1
1807	1
1808	1
1815	1
1817	1
1818	1
1819	1
1823	1
1825	1
1830	1
1835	3
1837	1
1845	1
1847	2
1851	1
1852	3
1853	1
1854	1
1855	1
1857	1
1858	1
1862	1
1865	2
1868	1
1873	4
1874	1
1875	3
1877	4
1878	2
1880	2
1889	1
1890	2
1891	2
1892	4
1894	5
1895	1
1896	5
1897	6
1898	3
1899	1
1900	2
1901	4
1902	4
1903	5
1904	19
1905	11
1906	14
1907	16
1908	38
1909	7
1910	29
1911	33
1912	27
1913	20
1914	83
1915	30
1916	30
1917	32
1918	35
1919	39
1920	87
1921	148
1922	96
1923	71
1924	74
1925	103
1926	140
1927	256
1928	308
1929	145
1930	238
1931	216
1932	615
1933	261
1934	234
1935	374
1936	308
1937	439
1938	564
1939	618
1940	337
1941	460
1942	415
1943	285
1944	334
1945	475
1946	492
1947	461
1948	622
1949	439
1950	293
1951	441
1952	529
1953	818
1954	650
1955	394
1956	486
1957	277
1958	702
1959	434
1960	553
1961	667
1962	597
1963	702
1964	766
1965	411
1966	409
1967	935
1968	745
1969	728
1970	547
1971	924
1972	546
1973	589
1974	244
1975	666
1976	1,630
1977	906
1978	620
1979	810
1980	675
1981	621
1982	965
1983	1,365
1984	720
1985	917
1986	997
1987	960
1988	1,082
1989	638
1990	1,065
1991	614
1992	1,105
1993	847
1994	1,047
1995	1,211
1996	1,044
1997	889
1998	1,795
1999	1,730
2000	1,082
2001	1,013
2002	2,284
2003	1,037
2004	761
2005	572
2006	1,430
2007	863
2008	842
2009	779
2010	606
2011	982
2012	920
2013	1,796
2014	913
2015	813
2016	977
2017	469
2018	1,585
2019	458
2020	1,165
2021	701
2022	831
2023	628
2024	690
2025	1,058
2026	838

Download the Data

Data for records on 2009-04-17: 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	572
50 to 100	23
100 to 150	9
150 to 200	4
200 to 250	0
250 to 300	1
300 to 350	0
350 to 400	1