Weather Records on 15 October 2009

2,365 weather records were set or tied worldwide on 15 October 2009. Highest significance: Mc Leod 3 E, US.

Key Facts for 15 October 2009

On 15 October 2009, 2,365 weather records were set or tied at long-record stations worldwide.
684 were record highs and 1,358 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 44 monthly and 2,321 daily.
Mc Leod 3 E set a daily record snowfall of 7.6 cm (3.0 in) on 15 October 2009.
Across 159 earlier years (1794 to 2025) the same calendar date averaged 448 records.

Record Map

2,000 stations, highest significance shown

2,000 station records on 15 October 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 October 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mc Leod 3 E	United States	Record daily snowfall	7.6 cm (3.0 in)	64 of 100 (Major)
Valley City 3 NNW	United States	Record daily snowfall	7.6 cm (3.0 in)	63 of 100 (Major)
Victor 4 N	United States	Record daily snowfall	10.2 cm (4.0 in)	63 of 100 (Major)
Lysa Hora	Czech Republic	Record daily precipitation	99.8 mm (3.9 in)	62 of 100 (Major)
Lugansk	Ukraine	Record daily precipitation	27.1 mm (1.1 in)	61 of 100 (Major)
Jamestown State Hosp	United States	Record daily snowfall	7.6 cm (3.0 in)	58 of 100 (Notable)
Mc Henry 3W	United States	Record daily snowfall	10.2 cm (4.0 in)	57 of 100 (Notable)
Colgate	United States	Record daily snowfall	10.2 cm (4.0 in)	56 of 100 (Notable)
Mocksville 5SE	United States	Record low maximum temperature	10.6 C (51.1 F)	53 of 100 (Notable)
Edmore 4NW	United States	Record daily snowfall	5.1 cm (2.0 in)	53 of 100 (Notable)
Langdon Exp Farm	United States	Record daily snowfall	5.8 cm (2.3 in)	53 of 100 (Notable)
Freiburg	Germany	Record low minimum temperature	-5.9 C (21.4 F)	52 of 100 (Notable)
Litchville 2NW	United States	Record daily snowfall	15.2 cm (6.0 in)	52 of 100 (Notable)
Pembina	United States	Record daily snowfall	5.1 cm (2.0 in)	51 of 100 (Notable)
Budapest	Hungary	Record low maximum temperature	4.0 C (39.2 F)	50 of 100 (Notable)
Medina	United States	Record daily snowfall	10.2 cm (4.0 in)	50 of 100 (Notable)
Martinsburg E W Virginia Rgnl	United States	Record low maximum temperature	6.7 C (44.1 F)	49 of 100 (Notable)
Chestertown	United States	Record low maximum temperature	7.8 C (46.0 F)	48 of 100 (Notable)
Potosi 4 SW	United States	Record low maximum temperature	7.2 C (45.0 F)	48 of 100 (Notable)
Alfred	United States	Record daily snowfall	7.6 cm (3.0 in)	48 of 100 (Notable)
Port Jervis	United States	Record low maximum temperature	3.3 C (37.9 F)	48 of 100 (Notable)
Lenoir	United States	Record low maximum temperature	11.1 C (52.0 F)	47 of 100 (Notable)
Adams 7 SSW	United States	Record daily snowfall	10.2 cm (4.0 in)	47 of 100 (Notable)
Mc Henry 3W	United States	Record snow depth	10.2 cm (4.0 in)	47 of 100 (Notable)
Verona	United States	Record daily snowfall	20.3 cm (8.0 in)	47 of 100 (Notable)
Moorefield 1 SSE	United States	Record low maximum temperature	7.2 C (45.0 F)	47 of 100 (Notable)
Lodi	United States	Record high minimum temperature	17.2 C (63.0 F)	46 of 100 (Notable)
Paso Robles	United States	Record high minimum temperature	13.9 C (57.0 F)	46 of 100 (Notable)
Council	United States	Record daily precipitation	25.9 mm (1.0 in)	46 of 100 (Notable)
Rockville	United States	Record low maximum temperature	7.2 C (45.0 F)	46 of 100 (Notable)
Portsmouth-Sciotoville	United States	Record low maximum temperature	8.3 C (46.9 F)	46 of 100 (Notable)
Halle	Germany	Record low maximum temperature	4.3 C (39.7 F)	45 of 100 (Notable)
Chapman	United States	Record low maximum temperature	6.7 C (44.1 F)	45 of 100 (Notable)
Brockton	United States	Record low maximum temperature	6.7 C (44.1 F)	45 of 100 (Notable)
Wilton	United States	Record daily snowfall	7.6 cm (3.0 in)	45 of 100 (Notable)
Chippewa Lake	United States	Record low maximum temperature	5.0 C (41.0 F)	45 of 100 (Notable)
Philo 3 SW	United States	Record low maximum temperature	6.1 C (43.0 F)	45 of 100 (Notable)
Marlinton	United States	Record low maximum temperature	5.0 C (41.0 F)	45 of 100 (Notable)
Nurnberg	Germany	Record low maximum temperature	3.1 C (37.6 F)	44 of 100 (Notable)
Plauen	Germany	Record low maximum temperature	2.0 C (35.6 F)	44 of 100 (Notable)
Hoopeston	United States	Record low maximum temperature	6.7 C (44.1 F)	44 of 100 (Notable)
Howard 2SE	United States	Record low maximum temperature	8.3 C (46.9 F)	44 of 100 (Notable)
E Wareham	United States	Record low maximum temperature	7.8 C (46.0 F)	44 of 100 (Notable)
Houston	United States	Record low maximum temperature	9.4 C (48.9 F)	44 of 100 (Notable)
Toms River	United States	Record low maximum temperature	10.0 C (50.0 F)	44 of 100 (Notable)
Alfred	United States	Record low maximum temperature	1.7 C (35.1 F)	44 of 100 (Notable)
Port Allegany	United States	Record daily snowfall	10.2 cm (4.0 in)	44 of 100 (Notable)
Bamberg	Germany	Record low maximum temperature	3.6 C (38.5 F)	43 of 100 (Notable)
Heinersreuth-Vollhof	Germany	Record low maximum temperature	2.3 C (36.1 F)	43 of 100 (Notable)
Lichtentanne	Germany	Record low maximum temperature	2.2 C (36.0 F)	43 of 100 (Notable)
Chemnitz	Germany	Record low maximum temperature	1.2 C (34.2 F)	43 of 100 (Notable)
Saint Leo	United States	Record high minimum temperature	24.4 C (75.9 F)	43 of 100 (Notable)
Madison Sewage Plt	United States	Record low maximum temperature	9.4 C (48.9 F)	43 of 100 (Notable)
Mt Vernon	United States	Record low maximum temperature	10.0 C (50.0 F)	43 of 100 (Notable)
Ottawa	United States	Record low maximum temperature	7.8 C (46.0 F)	43 of 100 (Notable)
Yates Ctr	United States	Record low maximum temperature	7.2 C (45.0 F)	43 of 100 (Notable)
Ellendale	United States	Record low maximum temperature	0.0 C (32.0 F)	43 of 100 (Notable)
Urbana Wrf	United States	Record low maximum temperature	5.6 C (42.1 F)	43 of 100 (Notable)
Wooster Exp STN	United States	Record low maximum temperature	6.1 C (43.0 F)	43 of 100 (Notable)
Vinita 2 N	United States	Record low maximum temperature	10.0 C (50.0 F)	43 of 100 (Notable)

Counts by Type and Timescale

2,365 records

Records set or tied on 15 October 2009 by type: Highest daily maximum 320, Lowest daily maximum 1,152, Highest daily minimum 364, Lowest daily minimum 206, Heaviest daily rainfall 194, Heaviest daily snowfall 77, Deepest snow cover 52.

Records on 15 October 2009 by type
Record type	Records
Highest daily maximum	320
Lowest daily maximum	1,152
Highest daily minimum	364
Lowest daily minimum	206
Heaviest daily rainfall	194
Heaviest daily snowfall	77
Deepest snow cover	52

Records on 15 October 2009 by timescale: all-time 0, monthly 44, daily 2,321.

How Much Records Were Beaten By

1,924 broken records

Margins by which the 1,924 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

15 October 2009

Top 20 records on 15 October 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 October 2009	Mc Leod 3 E, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	96 years	64 of 100 (Major)
15 October 2009	Valley City 3 NNW, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	114 years	63 of 100 (Major)
15 October 2009	Victor 4 N, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	86 years	63 of 100 (Major)
15 October 2009	Lysa Hora, CZ	monthly rain	99.8 mm (3.9 in)	52.8 mm (2.1 in)	31 years	62 of 100 (Major)
15 October 2009	Lugansk, UA	daily rain	27.1 mm (1.1 in)	14.5 mm (0.6 in)	84 years	61 of 100 (Major)
15 October 2009	Jamestown State Hosp, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	115 years	58 of 100 (Notable)
15 October 2009	Mc Henry 3W, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	99 years	57 of 100 (Notable)
15 October 2009	Colgate, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	92 years	56 of 100 (Notable)
15 October 2009	Mocksville 5SE, US	daily low max	10.6 C (51.1 F)	6.1 C (11.0 F)	114 years	53 of 100 (Notable)
15 October 2009	Edmore 4NW, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	104 years	53 of 100 (Notable)
15 October 2009	Langdon Exp Farm, US	daily snowfall	5.8 cm (2.3 in)	5.8 cm (2.3 in)	100 years	53 of 100 (Notable)
15 October 2009	Freiburg, DE	monthly low min	-5.9 C (21.4 F)	0.9 C (1.6 F)	121 years	52 of 100 (Notable)
15 October 2009	Litchville 2NW, US	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	58 years	52 of 100 (Notable)
15 October 2009	Pembina, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	109 years	51 of 100 (Notable)
15 October 2009	Budapest, HU	daily low max	4.0 C (39.2 F)	5.1 C (9.2 F)	104 years	50 of 100 (Notable)
15 October 2009	Medina, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	68 years	50 of 100 (Notable)
15 October 2009	Martinsburg E W Virginia Rgnl, US	daily low max	6.7 C (44.1 F)	5.0 C (9.0 F)	114 years	49 of 100 (Notable)
15 October 2009	Chestertown, US	daily low max	7.8 C (46.0 F)	3.9 C (7.0 F)	114 years	48 of 100 (Notable)
15 October 2009	Mayville, US	daily snowfall	2.8 cm (1.1 in)	2.8 cm (1.1 in)	112 years	20 of 100 (Routine)
15 October 2009	Independence, US	daily rain	13.7 mm (0.5 in)	7.9 mm (0.31 in)	99 years	20 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

1794 to 2009

Records set or tied on this calendar date in each year from 1794 to 2009. 2009 had 2,365 records.

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

Records on 10-15 in each year
Year	Records
1794	1
1795	1
1796	1
1807	1
1808	2
1836	1
1838	1
1839	1
1849	1
1859	2
1862	1
1870	2
1871	4
1873	1
1875	1
1876	3
1877	1
1878	3
1879	3
1881	3
1882	4
1885	2
1886	1
1887	8
1889	2
1891	4
1892	1
1893	5
1894	9
1895	3
1896	8
1897	2
1898	3
1899	4
1900	3
1901	4
1902	7
1903	13
1904	10
1905	13
1906	7
1907	11
1908	13
1909	17
1910	14
1911	18
1912	17
1913	70
1914	28
1915	48
1916	21
1917	29
1918	21
1919	65
1920	38
1921	160
1922	43
1923	66
1924	118
1925	221
1926	125
1927	94
1928	385
1929	200
1930	282
1931	461
1932	213
1933	255
1934	434
1935	303
1936	126
1937	1,444
1938	598
1939	461
1940	458
1941	330
1942	494
1943	704
1944	246
1945	487
1946	354
1947	963
1948	224
1949	546
1950	321
1951	341
1952	662
1953	374
1954	945
1955	444
1956	555
1957	461
1958	606
1959	411
1960	600
1961	834
1962	1,009
1963	522
1964	488
1965	299
1966	1,265
1967	464
1968	1,111
1969	1,074
1970	642
1971	744
1972	584
1973	525
1974	768
1975	808
1976	791
1977	543
1978	886
1979	720
1980	1,006
1981	965
1982	297
1983	653
1984	1,236
1985	1,068
1986	768
1987	900
1988	896
1989	560
1990	1,134
1991	1,139
1992	1,530
1993	1,066
1994	1,103
1995	1,008
1996	458
1997	964
1998	806
1999	766
2000	625
2001	705
2002	965
2003	737
2004	716
2005	610
2006	1,305
2007	702
2008	959
2009	2,365
2010	1,095
2011	906
2012	909
2013	632
2014	901
2015	1,139
2016	674
2017	1,091
2018	2,682
2019	479
2020	499
2021	983
2022	633
2023	319
2024	748
2025	697

Download the Data

Data for records on 2009-10-15: 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 20	1,810
20 to 40	67
40 to 60	22
60 to 80	12
80 to 100	2
100 to 120	10
120 to 140	0
140 to 160	1