Weather Records on 11 October 2009

2,594 weather records were set or tied worldwide on 11 October 2009. Highest significance: Yecora (Smn), MX.

Key Facts for 11 October 2009

On 11 October 2009, 2,594 weather records were set or tied at long-record stations worldwide.
355 were record highs and 1,880 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 34 monthly and 2,559 daily.
Yecora (Smn) set a daily record precipitation of 70.4 mm (2.8 in) on 11 October 2009.
Across 165 earlier years (1793 to 2026) the same calendar date averaged 442 records.

Record Map

2,000 stations, highest significance shown

2,000 station records on 11 October 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 October 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Yecora (Smn)	Mexico	Record daily precipitation	70.4 mm (2.8 in)	60 of 100 (Major)
Scottsbluff W B Heilig Fld AP	United States	Record snow depth	10.2 cm (4.0 in)	60 of 100 (Major)
Wheatland 4N	United States	Record snow depth	27.9 cm (11.0 in)	59 of 100 (Notable)
Santa Rita	Mexico	Record daily precipitation	104.9 mm (4.1 in)	58 of 100 (Notable)
Mercedes 6 SSE	United States	Record low maximum temperature	18.9 C (66.0 F)	58 of 100 (Notable)
Waterville	United States	Record low minimum temperature	-10.6 C (12.9 F)	58 of 100 (Notable)
Kaneohe 838.1	United States	Record daily precipitation	35.3 mm (1.4 in)	58 of 100 (Notable)
Polson	United States	Record low minimum temperature	-12.2 C (10.0 F)	57 of 100 (Notable)
Yecora (Dge)	Mexico	Record daily precipitation	70.4 mm (2.8 in)	55 of 100 (Notable)
Faulkton	United States	Record daily snowfall	10.2 cm (4.0 in)	55 of 100 (Notable)
Atlantic 1 NE	United States	Record daily snowfall	7.1 cm (2.8 in)	54 of 100 (Notable)
Winterset 4N	United States	Record daily snowfall	7.4 cm (2.9 in)	54 of 100 (Notable)
Trenton	United States	Record low maximum temperature	2.2 C (36.0 F)	53 of 100 (Notable)
Chapman	United States	Record low maximum temperature	1.1 C (34.0 F)	52 of 100 (Notable)
Missoula 6 NW WFO	United States	Record low minimum temperature	-10.6 C (12.9 F)	52 of 100 (Notable)
Horton	United States	Record low maximum temperature	1.7 C (35.1 F)	51 of 100 (Notable)
Newton	United States	Record low maximum temperature	2.8 C (37.0 F)	51 of 100 (Notable)
Faulkton	United States	Record snow depth	10.2 cm (4.0 in)	50 of 100 (Notable)
Crosbyton	United States	Record low maximum temperature	7.2 C (45.0 F)	50 of 100 (Notable)
Hardy	United States	Record low maximum temperature	11.7 C (53.1 F)	49 of 100 (Notable)
Keosauqua	United States	Record low maximum temperature	2.8 C (37.0 F)	49 of 100 (Notable)
Lamoni	United States	Record low maximum temperature	2.2 C (36.0 F)	49 of 100 (Notable)
Lawrence	United States	Record low maximum temperature	3.9 C (39.0 F)	49 of 100 (Notable)
Great Falls 16St	United States	Record low minimum temperature	-12.8 C (9.0 F)	49 of 100 (Notable)
Colville	United States	Record low minimum temperature	-10.0 C (14.0 F)	49 of 100 (Notable)
Lacrosse	United States	Record low minimum temperature	-12.8 C (9.0 F)	49 of 100 (Notable)
Galesburg	United States	Record low maximum temperature	2.8 C (37.0 F)	48 of 100 (Notable)
Steffenville	United States	Record low maximum temperature	5.0 C (41.0 F)	48 of 100 (Notable)
Ft Meade	United States	Record low maximum temperature	-3.9 C (25.0 F)	48 of 100 (Notable)
Medicine Bow	United States	Record snow depth	25.4 cm (10.0 in)	48 of 100 (Notable)
Albia 3 NNE	United States	Record low maximum temperature	2.8 C (37.0 F)	47 of 100 (Notable)
Fairfield	United States	Record low maximum temperature	4.4 C (39.9 F)	47 of 100 (Notable)
Mt Ayr	United States	Record low maximum temperature	2.8 C (37.0 F)	47 of 100 (Notable)
Sidney 1SSE	United States	Record low maximum temperature	5.0 C (41.0 F)	47 of 100 (Notable)
Great Falls 16St	United States	Record low maximum temperature	-3.9 C (25.0 F)	47 of 100 (Notable)
Arthur	United States	Record snow depth	17.8 cm (7.0 in)	47 of 100 (Notable)
Oshkosh	United States	Record snow depth	20.3 cm (8.0 in)	47 of 100 (Notable)
Stephan 2 NW	United States	Record low minimum temperature	-11.7 C (10.9 F)	47 of 100 (Notable)
McGregor	United States	Record low maximum temperature	12.8 C (55.0 F)	47 of 100 (Notable)
Diversion Dam	United States	Record low maximum temperature	-5.6 C (21.9 F)	47 of 100 (Notable)
Porfirio Diaz	Mexico	Record daily precipitation	73.9 mm (2.9 in)	46 of 100 (Notable)
Saint Maries	United States	Record low minimum temperature	-8.9 C (16.0 F)	46 of 100 (Notable)
Creston 2 SW	United States	Record low maximum temperature	4.4 C (39.9 F)	46 of 100 (Notable)
Winterset 4N	United States	Record low maximum temperature	4.4 C (39.9 F)	46 of 100 (Notable)
Ottawa	United States	Record low maximum temperature	5.6 C (42.1 F)	46 of 100 (Notable)
Missoula 6 NW WFO	United States	Record low maximum temperature	-1.1 C (30.0 F)	46 of 100 (Notable)
Ada	United States	Record low maximum temperature	13.3 C (55.9 F)	46 of 100 (Notable)
Academy 2NE	United States	Record low maximum temperature	2.2 C (36.0 F)	46 of 100 (Notable)
Coleman	United States	Record low maximum temperature	12.2 C (54.0 F)	46 of 100 (Notable)
Pomeroy	United States	Record low maximum temperature	6.7 C (44.1 F)	46 of 100 (Notable)
Port Townsend	United States	Record low minimum temperature	2.2 C (36.0 F)	46 of 100 (Notable)
Marshall	United States	Record low maximum temperature	7.8 C (46.0 F)	46 of 100 (Notable)
Arkadelphia 2 N	United States	Record low maximum temperature	13.9 C (57.0 F)	45 of 100 (Notable)
Conway	United States	Record low maximum temperature	11.1 C (52.0 F)	45 of 100 (Notable)
Grangeville	United States	Record low minimum temperature	-10.0 C (14.0 F)	45 of 100 (Notable)
Geneseo	United States	Record low maximum temperature	5.0 C (41.0 F)	45 of 100 (Notable)
Rock Is L&D 15	United States	Record low maximum temperature	5.0 C (41.0 F)	45 of 100 (Notable)
Audubon	United States	Record low maximum temperature	4.4 C (39.9 F)	45 of 100 (Notable)
Indianola 1SW	United States	Record low maximum temperature	5.0 C (41.0 F)	45 of 100 (Notable)
Jefferson	United States	Record low maximum temperature	5.0 C (41.0 F)	45 of 100 (Notable)

Counts by Type and Timescale

2,594 records

Records set or tied on 11 October 2009 by type: Highest daily maximum 160, Lowest daily maximum 1,256, Highest daily minimum 195, Lowest daily minimum 624, Heaviest daily rainfall 162, Heaviest daily snowfall 73, Deepest snow cover 124.

Records on 11 October 2009 by type
Record type	Records
Highest daily maximum	160
Lowest daily maximum	1,256
Highest daily minimum	195
Lowest daily minimum	624
Heaviest daily rainfall	162
Heaviest daily snowfall	73
Deepest snow cover	124

Records on 11 October 2009 by timescale: all-time 1, monthly 34, daily 2,559.

How Much Records Were Beaten By

2,194 broken records

Margins by which the 2,194 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 310.0. Ties are not counted.

Top 20 by Significance

11 October 2009

Top 20 records on 11 October 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 October 2009	Yecora (Smn), MX	daily rain	70.4 mm (2.8 in)	59.5 mm (2.3 in)	64 years	60 of 100 (Major)
11 October 2009	Scottsbluff W B Heilig Fld AP, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	108 years	60 of 100 (Major)
11 October 2009	Wheatland 4N, US	daily snow depth	27.9 cm (11.0 in)	22.8 cm (9.0 in)	40 years	59 of 100 (Notable)
11 October 2009	Santa Rita, MX	monthly rain	104.9 mm (4.1 in)	69.1 mm (2.7 in)	18 years	58 of 100 (Notable)
11 October 2009	Mercedes 6 SSE, US	daily low max	18.9 C (66.0 F)	8.3 C (14.9 F)	86 years	58 of 100 (Notable)
11 October 2009	Waterville, US	daily low min	-10.6 C (12.9 F)	7.8 C (14.0 F)	96 years	58 of 100 (Notable)
11 October 2009	Kaneohe 838.1, US	daily rain	35.3 mm (1.4 in)	22.9 mm (0.9 in)	103 years	58 of 100 (Notable)
11 October 2009	Polson, US	daily low min	-12.2 C (10.0 F)	8.9 C (16.0 F)	80 years	57 of 100 (Notable)
11 October 2009	Yecora (Dge), MX	daily rain	70.4 mm (2.8 in)	63.5 mm (2.5 in)	35 years	55 of 100 (Notable)
11 October 2009	Faulkton, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	112 years	55 of 100 (Notable)
11 October 2009	Atlantic 1 NE, US	daily snowfall	7.1 cm (2.8 in)	7.1 cm (2.8 in)	115 years	54 of 100 (Notable)
11 October 2009	Winterset 4N, US	daily snowfall	7.4 cm (2.9 in)	7.4 cm (2.9 in)	114 years	54 of 100 (Notable)
11 October 2009	Trenton, US	daily low max	2.2 C (36.0 F)	7.8 C (14.0 F)	100 years	53 of 100 (Notable)
11 October 2009	Chapman, US	daily low max	1.1 C (34.0 F)	8.3 C (14.9 F)	100 years	52 of 100 (Notable)
11 October 2009	Missoula 6 NW WFO, US	daily low min	-10.6 C (12.9 F)	5.0 C (9.0 F)	114 years	52 of 100 (Notable)
11 October 2009	Horton, US	daily low max	1.7 C (35.1 F)	7.2 C (13.0 F)	112 years	51 of 100 (Notable)
11 October 2009	Newton, US	daily low max	2.8 C (37.0 F)	7.2 C (13.0 F)	100 years	51 of 100 (Notable)
11 October 2009	Faulkton, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	112 years	50 of 100 (Notable)
11 October 2009	Broken Bow 2 W, US	daily snow depth	5.1 cm (2.0 in)	5.1 cm (2.0 in)	113 years	20 of 100 (Routine)
11 October 2009	Mys Uelen, RU	daily rain	23.3 mm (0.9 in)	14.5 mm (0.6 in)	14 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

1793 to 2009

Records set or tied on this calendar date in each year from 1793 to 2009. 2009 had 2,594 records.

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

Records on 10-11 in each year
Year	Records
1793	1
1801	1
1802	2
1803	1
1805	1
1807	1
1811	1
1814	2
1839	1
1845	1
1849	1
1851	1
1852	1
1854	1
1859	1
1860	4
1861	1
1864	2
1867	2
1869	1
1870	1
1872	2
1873	2
1875	1
1876	4
1877	3
1879	2
1880	2
1884	2
1885	5
1887	4
1888	2
1889	3
1890	1
1891	2
1892	2
1896	2
1897	4
1898	4
1900	1
1901	8
1902	14
1903	10
1904	20
1905	17
1906	52
1907	10
1908	11
1909	17
1910	31
1911	14
1912	21
1913	48
1914	40
1915	14
1916	25
1917	48
1918	32
1919	76
1920	140
1921	92
1922	35
1923	231
1924	149
1925	196
1926	137
1927	176
1928	713
1929	259
1930	656
1931	396
1932	235
1933	200
1934	862
1935	245
1936	243
1937	242
1938	438
1939	249
1940	201
1941	190
1942	537
1943	414
1944	247
1945	284
1946	770
1947	405
1948	736
1949	835
1950	450
1951	538
1952	472
1953	408
1954	672
1955	434
1956	894
1957	258
1958	795
1959	1,027
1960	333
1961	610
1962	857
1963	570
1964	927
1965	202
1966	279
1967	643
1968	312
1969	1,032
1970	859
1971	521
1972	708
1973	1,325
1974	356
1975	559
1976	565
1977	655
1978	426
1979	1,260
1980	478
1981	776
1982	1,141
1983	542
1984	552
1985	977
1986	961
1987	1,603
1988	621
1989	571
1990	1,617
1991	1,055
1992	527
1993	883
1994	726
1995	975
1996	842
1997	1,809
1998	750
1999	996
2000	1,782
2001	962
2002	1,000
2003	1,191
2004	593
2005	1,044
2006	840
2007	610
2008	1,369
2009	2,594
2010	964
2011	1,176
2012	696
2013	666
2014	620
2015	1,032
2016	378
2017	1,101
2018	1,517
2019	1,760
2020	680
2021	873
2022	244
2023	858
2024	842
2025	711
2026	897

Download the Data

Data for records on 2009-10-11: 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	2,117
50 to 100	51
100 to 150	10
150 to 200	11
200 to 250	4
250 to 300	0
300 to 350	1