Weather Records on 11 December 2009

1,091 weather records were set or tied worldwide on 11 December 2009. Highest significance: Lovelock, US.

Key Facts for 11 December 2009

On 11 December 2009, 1,091 weather records were set or tied at long-record stations worldwide.
304 were record highs and 382 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 37 monthly and 1,053 daily.
Lovelock set a daily record snow depth of 15.2 cm (6.0 in) on 11 December 2009.
Across 154 earlier years (1796 to 2025) the same calendar date averaged 469 records.

Record Map

1,091 stations

1,091 station records on 11 December 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 December 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Lovelock	United States	Record snow depth	15.2 cm (6.0 in)	79 of 100 (Major)
Concordia ASOS	United States	Record snow depth	30.5 cm (12.0 in)	76 of 100 (Major)
Lowville	United States	Record daily snowfall	77.5 cm (30.5 in)	72 of 100 (Major)
Rye Patch Dam	United States	Record daily snowfall	12.7 cm (5.0 in)	66 of 100 (Major)
Lebanon	United States	Record snow depth	40.6 cm (16.0 in)	64 of 100 (Major)
Mombasa	Kenya	Record daily precipitation	110.0 mm (4.3 in)	62 of 100 (Major)
Oskaloosa	United States	Record snow depth	35.6 cm (14.0 in)	60 of 100 (Major)
Beloit	United States	Record snow depth	22.9 cm (9.0 in)	57 of 100 (Notable)
Onaway 4N	United States	Record daily snowfall	27.9 cm (11.0 in)	57 of 100 (Notable)
Stillwater Rsvr	United States	Record daily snowfall	73.7 cm (29.0 in)	56 of 100 (Notable)
Lincoln 1 SE	United States	Record snow depth	30.5 cm (12.0 in)	55 of 100 (Notable)
Gallatin 1W	United States	Record snow depth	25.4 cm (10.0 in)	55 of 100 (Notable)
Minneapolis	United States	Record snow depth	25.4 cm (10.0 in)	54 of 100 (Notable)
Imlay	United States	Record daily snowfall	12.7 cm (5.0 in)	54 of 100 (Notable)
Shenandoah	United States	Record snow depth	40.6 cm (16.0 in)	53 of 100 (Notable)
Shionomisaki	Japan	Record daily precipitation	112.0 mm (4.4 in)	52 of 100 (Notable)
La Rumorosa	Mexico	Record daily precipitation	34.8 mm (1.4 in)	52 of 100 (Notable)
Antalya	Turkey	Record daily precipitation	198.9 mm (7.8 in)	52 of 100 (Notable)
Jefferson	United States	Record snow depth	30.5 cm (12.0 in)	51 of 100 (Notable)
Moab	United States	Record low maximum temperature	-7.8 C (18.0 F)	50 of 100 (Notable)
Jewell	United States	Record snow depth	33.0 cm (13.0 in)	49 of 100 (Notable)
Orleans 2 W	United States	Record snow depth	35.6 cm (14.0 in)	49 of 100 (Notable)
Enterprise	United States	Record snow depth	20.3 cm (8.0 in)	48 of 100 (Notable)
Warruwi	Australia	Record daily precipitation	85.0 mm (3.3 in)	47 of 100 (Notable)
Weeping Water	United States	Record snow depth	27.9 cm (11.0 in)	47 of 100 (Notable)
Fruita	United States	Record low minimum temperature	-26.7 C (-16.1 F)	46 of 100 (Notable)
Pella 1S	United States	Record snow depth	35.6 cm (14.0 in)	46 of 100 (Notable)
Carroll	United States	Record snow depth	30.5 cm (12.0 in)	45 of 100 (Notable)
Toledo 3N	United States	Record snow depth	40.6 cm (16.0 in)	45 of 100 (Notable)
Adin Rs	United States	Record daily snowfall	7.6 cm (3.0 in)	44 of 100 (Notable)
Clay Ctr	United States	Record low minimum temperature	-25.0 C (-13.0 F)	44 of 100 (Notable)
Clay Ctr	United States	Record snow depth	27.9 cm (11.0 in)	44 of 100 (Notable)
Hill City 1E	United States	Record snow depth	30.5 cm (12.0 in)	44 of 100 (Notable)
Hardy	United States	Record snow depth	25.4 cm (10.0 in)	44 of 100 (Notable)
Greenfield	United States	Record snow depth	38.1 cm (15.0 in)	43 of 100 (Notable)
Tecumseh 1S	United States	Record low minimum temperature	-25.0 C (-13.0 F)	43 of 100 (Notable)
Yerington	United States	Record snow depth	12.7 cm (5.0 in)	43 of 100 (Notable)
Meeker	United States	Record low minimum temperature	-28.9 C (-20.0 F)	42 of 100 (Notable)
Atlantic 1 NE	United States	Record snow depth	35.6 cm (14.0 in)	42 of 100 (Notable)
Chapman	United States	Record low minimum temperature	-22.2 C (-8.0 F)	42 of 100 (Notable)
Horton	United States	Record snow depth	17.8 cm (7.0 in)	42 of 100 (Notable)
Auburn 5 ESE	United States	Record snow depth	30.5 cm (12.0 in)	42 of 100 (Notable)
Tecumseh 1S	United States	Record snow depth	35.6 cm (14.0 in)	42 of 100 (Notable)
Anadyr	Russia	Record high minimum temperature	-2.1 C (28.2 F)	41 of 100 (Notable)
Colorado City	United States	Record snow depth	20.3 cm (8.0 in)	41 of 100 (Notable)
Lamoni	United States	Record snow depth	25.4 cm (10.0 in)	41 of 100 (Notable)
Minneapolis	United States	Record low minimum temperature	-22.2 C (-8.0 F)	41 of 100 (Notable)
Bethany	United States	Record snow depth	20.3 cm (8.0 in)	41 of 100 (Notable)
Burlington Junction	United States	Record snow depth	25.4 cm (10.0 in)	41 of 100 (Notable)
Fairbury 7S	United States	Record low minimum temperature	-22.8 C (-9.0 F)	41 of 100 (Notable)
Hooker 12 NNW	United States	Record daily snowfall	52.1 cm (20.5 in)	41 of 100 (Notable)
Boone	United States	Record snow depth	27.9 cm (11.0 in)	40 of 100 (Notable)
Sharon Springs	United States	Record snow depth	20.3 cm (8.0 in)	40 of 100 (Notable)
Bruning	United States	Record snow depth	25.4 cm (10.0 in)	40 of 100 (Notable)
Minden	United States	Record snow depth	30.5 cm (12.0 in)	40 of 100 (Notable)
Red Cloud	United States	Record snow depth	27.9 cm (11.0 in)	40 of 100 (Notable)
Seward	United States	Record low minimum temperature	-23.3 C (-9.9 F)	40 of 100 (Notable)
Matsumoto	Japan	Record daily precipitation	25.9 mm (1.0 in)	39 of 100 (Notable)
Elkader 6 SSW	United States	Record low maximum temperature	-15.0 C (5.0 F)	39 of 100 (Notable)
Ft Dodge 5NNW	United States	Record snow depth	35.6 cm (14.0 in)	39 of 100 (Notable)

Counts by Type and Timescale

1,091 records

Records set or tied on 11 December 2009 by type: Highest daily maximum 158, Lowest daily maximum 161, Highest daily minimum 146, Lowest daily minimum 221, Heaviest daily rainfall 122, Heaviest daily snowfall 33, Deepest snow cover 250.

Records on 11 December 2009 by type
Record type	Records
Highest daily maximum	158
Lowest daily maximum	161
Highest daily minimum	146
Lowest daily minimum	221
Heaviest daily rainfall	122
Heaviest daily snowfall	33
Deepest snow cover	250

Records on 11 December 2009 by timescale: all-time 1, monthly 37, daily 1,053.

How Much Records Were Beaten By

815 broken records

Margins by which the 815 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

11 December 2009

Top 20 records on 11 December 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 December 2009	Lovelock, US	daily snow depth	15.2 cm (6.0 in)	15.2 cm (6.0 in)	98 years	79 of 100 (Major)
11 December 2009	Concordia ASOS, US	daily snow depth	30.5 cm (12.0 in)	20.3 cm (8.0 in)	100 years	76 of 100 (Major)
11 December 2009	Lowville, US	all-time snowfall	77.5 cm (30.5 in)	8.9 cm (3.5 in)	109 years	72 of 100 (Major)
11 December 2009	Rye Patch Dam, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	74 years	66 of 100 (Major)
11 December 2009	Lebanon, US	daily snow depth	40.6 cm (16.0 in)	22.8 cm (9.0 in)	48 years	64 of 100 (Major)
11 December 2009	Mombasa, KE	monthly rain	110.0 mm (4.3 in)	50.5 mm (2.0 in)	24 years	62 of 100 (Major)
11 December 2009	Oskaloosa, US	daily snow depth	35.6 cm (14.0 in)	15.3 cm (6.0 in)	90 years	60 of 100 (Major)
11 December 2009	Beloit, US	daily snow depth	22.9 cm (9.0 in)	12.7 cm (5.0 in)	90 years	57 of 100 (Notable)
11 December 2009	Onaway 4N, US	daily snowfall	27.9 cm (11.0 in)	17.7 cm (7.0 in)	42 years	57 of 100 (Notable)
11 December 2009	Stillwater Rsvr, US	monthly snowfall	73.7 cm (29.0 in)	17.8 cm (7.0 in)	39 years	56 of 100 (Notable)
11 December 2009	Lincoln 1 SE, US	daily snow depth	30.5 cm (12.0 in)	15.3 cm (6.0 in)	66 years	55 of 100 (Notable)
11 December 2009	Gallatin 1W, US	daily snow depth	25.4 cm (10.0 in)	10.2 cm (4.0 in)	104 years	55 of 100 (Notable)
11 December 2009	Minneapolis, US	daily snow depth	25.4 cm (10.0 in)	12.7 cm (5.0 in)	66 years	54 of 100 (Notable)
11 December 2009	Imlay, US	daily snowfall	12.7 cm (5.0 in)	7.6 cm (3.0 in)	88 years	54 of 100 (Notable)
11 December 2009	Shenandoah, US	daily snow depth	40.6 cm (16.0 in)	20.3 cm (8.0 in)	48 years	53 of 100 (Notable)
11 December 2009	Shionomisaki, JP	daily rain	112.0 mm (4.4 in)	74.0 mm (2.9 in)	24 years	52 of 100 (Notable)
11 December 2009	La Rumorosa, MX	daily rain	34.8 mm (1.4 in)	19.8 mm (0.8 in)	75 years	52 of 100 (Notable)
11 December 2009	Antalya, TR	daily rain	198.9 mm (7.8 in)	130.8 mm (5.1 in)	44 years	52 of 100 (Notable)
11 December 2009	Jefferson, US	daily snow depth	30.5 cm (12.0 in)	10.2 cm (4.0 in)	90 years	51 of 100 (Notable)
11 December 2009	Moab, US	monthly low max	-7.8 C (18.0 F)	0.6 C (1.1 F)	99 years	50 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

1796 to 2009

Records set or tied on this calendar date in each year from 1796 to 2009. 2009 had 1,091 records.

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

Records on 12-11 in each year
Year	Records
1796	2
1808	2
1815	2
1825	2
1841	1
1852	1
1855	2
1862	1
1868	1
1869	3
1871	4
1872	1
1876	2
1877	1
1878	2
1879	4
1880	2
1882	3
1886	1
1887	1
1889	1
1891	3
1892	2
1893	3
1894	1
1895	4
1897	2
1898	14
1899	5
1900	4
1901	5
1902	6
1903	2
1904	28
1905	15
1906	12
1907	30
1908	18
1909	7
1910	31
1911	49
1912	36
1913	8
1914	13
1915	93
1916	55
1917	103
1918	32
1919	40
1920	58
1921	49
1922	143
1923	88
1924	84
1925	81
1926	77
1927	232
1928	111
1929	345
1930	72
1931	762
1932	696
1933	260
1934	480
1935	290
1936	357
1937	839
1938	231
1939	626
1940	302
1941	353
1942	263
1943	196
1944	407
1945	234
1946	717
1947	342
1948	153
1949	1,201
1950	463
1951	261
1952	923
1953	157
1954	492
1955	312
1956	300
1957	517
1958	985
1959	322
1960	746
1961	1,300
1962	723
1963	604
1964	542
1965	1,216
1966	525
1967	945
1968	543
1969	587
1970	617
1971	900
1972	1,514
1973	334
1974	313
1975	454
1976	380
1977	1,182
1978	678
1979	847
1980	522
1981	949
1982	657
1983	971
1984	1,013
1985	1,471
1986	561
1987	639
1988	850
1989	584
1990	747
1991	1,102
1992	1,357
1993	749
1994	1,243
1995	1,837
1996	1,307
1997	1,203
1998	1,012
1999	769
2000	1,584
2001	626
2002	1,139
2003	646
2004	1,166
2005	816
2006	858
2007	1,613
2008	1,312
2009	1,091
2010	1,284
2011	416
2012	618
2013	737
2014	893
2015	1,183
2016	489
2017	670
2018	353
2019	442
2020	517
2021	1,175
2022	679
2023	814
2024	539
2025	1,691

Download the Data

Data for records on 2009-12-11: 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	661
50 to 100	84
100 to 150	44
150 to 200	17
200 to 250	6
250 to 300	3