Weather Records on 12 December 2009

818 weather records were set or tied worldwide on 12 December 2009. Highest significance: Concordia ASOS, US.

Key Facts for 12 December 2009

On 12 December 2009, 818 weather records were set or tied at long-record stations worldwide.
249 were record highs and 184 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 32 monthly and 785 daily.
Concordia ASOS set a daily record snow depth of 30.5 cm (12.0 in) on 12 December 2009.
Across 153 earlier years (1796 to 2025) the same calendar date averaged 466 records.

Record Map

818 stations

818 station records on 12 December 2009 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 December 2009: highest significance records shown on the map
Station	Country	Type	Value	Significance
Concordia ASOS	United States	Record snow depth	30.5 cm (12.0 in)	80 of 100 (Exceptional)
McDermitt	United States	Record daily snowfall	10.2 cm (4.0 in)	66 of 100 (Major)
Drewsey	United States	Record daily snowfall	38.1 cm (15.0 in)	65 of 100 (Major)
Rye Patch Dam	United States	Record daily snowfall	10.2 cm (4.0 in)	55 of 100 (Notable)
Ignacio Zaragoza -Belen-	Mexico	Record daily precipitation	50.8 mm (2.0 in)	54 of 100 (Notable)
Beloit	United States	Record snow depth	20.3 cm (8.0 in)	53 of 100 (Notable)
Moab	United States	Record snow depth	17.8 cm (7.0 in)	53 of 100 (Notable)
Jewell	United States	Record snow depth	30.5 cm (12.0 in)	51 of 100 (Notable)
Channel Island	Australia	Record daily precipitation	117.2 mm (4.6 in)	50 of 100 (Notable)
Minneapolis	United States	Record snow depth	20.3 cm (8.0 in)	50 of 100 (Notable)
Talbotton	United States	Record daily precipitation	63.5 mm (2.5 in)	49 of 100 (Notable)
Mobile	United States	Record daily precipitation	103.1 mm (4.1 in)	49 of 100 (Notable)
Crystal Lake Fc238C	United States	Record daily precipitation	132.8 mm (5.2 in)	48 of 100 (Notable)
Orleans 2 W	United States	Record snow depth	35.6 cm (14.0 in)	48 of 100 (Notable)
Greenfield	United States	Record snow depth	38.1 cm (15.0 in)	47 of 100 (Notable)
Lincoln 1 SE	United States	Record snow depth	25.4 cm (10.0 in)	47 of 100 (Notable)
Fruita	United States	Record snow depth	17.8 cm (7.0 in)	46 of 100 (Notable)
Lebanon	United States	Record snow depth	38.1 cm (15.0 in)	46 of 100 (Notable)
Shenandoah	United States	Record snow depth	40.6 cm (16.0 in)	45 of 100 (Notable)
Kalispell Glacier AP	United States	Record daily snowfall	19.1 cm (7.5 in)	45 of 100 (Notable)
Paradise Valley 1 NW	United States	Record daily snowfall	10.2 cm (4.0 in)	45 of 100 (Notable)
New Orleans AP	United States	Record daily precipitation	133.6 mm (5.3 in)	45 of 100 (Notable)
Darwin Airport	Australia	Record daily precipitation	141.2 mm (5.6 in)	44 of 100 (Notable)
Hill City 1E	United States	Record snow depth	27.9 cm (11.0 in)	44 of 100 (Notable)
Imlay	United States	Record snow depth	12.7 cm (5.0 in)	44 of 100 (Notable)
Mill Creek Dam	United States	Record daily precipitation	38.1 mm (1.5 in)	44 of 100 (Notable)
Markovo	Russia	Record high minimum temperature	-3.7 C (25.3 F)	43 of 100 (Notable)
Plainville 4WNW	United States	Record snow depth	20.3 cm (8.0 in)	43 of 100 (Notable)
Hubbell	United States	Record snow depth	35.6 cm (14.0 in)	43 of 100 (Notable)
Carson City	United States	Record snow depth	27.9 cm (11.0 in)	43 of 100 (Notable)
Tierra Amarilla 4 N	United States	Record snow depth	33.0 cm (13.0 in)	43 of 100 (Notable)
Doyle	United States	Record daily snowfall	17.8 cm (7.0 in)	42 of 100 (Notable)
Onawa 3NW	United States	Record snow depth	25.4 cm (10.0 in)	42 of 100 (Notable)
Orovada 3 W	United States	Record snow depth	15.2 cm (6.0 in)	42 of 100 (Notable)
Fruita	United States	Record low minimum temperature	-24.4 C (-11.9 F)	41 of 100 (Notable)
Lillis	United States	Record snow depth	27.9 cm (11.0 in)	41 of 100 (Notable)
Lovelock	United States	Record snow depth	15.2 cm (6.0 in)	41 of 100 (Notable)
Bishop AP	United States	Record daily snowfall	5.1 cm (2.0 in)	41 of 100 (Notable)
Boulia Airport	Australia	Record low minimum temperature	10.5 C (50.9 F)	40 of 100 (Notable)
Audubon	United States	Record snow depth	45.7 cm (18.0 in)	40 of 100 (Notable)
Minden	United States	Record snow depth	30.5 cm (12.0 in)	40 of 100 (Notable)
Berrimah Research Farm	Australia	Record daily precipitation	118.6 mm (4.7 in)	39 of 100 (Notable)
McMinns Lagoon	Australia	Record daily precipitation	127.2 mm (5.0 in)	39 of 100 (Notable)
Lenora Coop	United States	Record snow depth	15.2 cm (6.0 in)	39 of 100 (Notable)
Hardy	United States	Record snow depth	22.9 cm (9.0 in)	39 of 100 (Notable)
Yerington	United States	Record snow depth	10.2 cm (4.0 in)	39 of 100 (Notable)
Susanville 2SW	United States	Record snow depth	20.3 cm (8.0 in)	38 of 100 (Notable)
Pawnee City	United States	Record snow depth	30.5 cm (12.0 in)	38 of 100 (Notable)
Elko Rgnl AP	United States	Record daily snowfall	12.4 cm (4.9 in)	38 of 100 (Notable)
Darwin Botanic Gardens	Australia	Record daily precipitation	101.0 mm (4.0 in)	37 of 100 (Notable)
Doyle	United States	Record snow depth	35.6 cm (14.0 in)	37 of 100 (Notable)
Portola	United States	Record daily snowfall	7.6 cm (3.0 in)	37 of 100 (Notable)
Preston	United States	Record daily snowfall	15.2 cm (6.0 in)	37 of 100 (Notable)
Madison	United States	Record snow depth	15.2 cm (6.0 in)	37 of 100 (Notable)
Raymond Border STN	United States	Record daily snowfall	13.5 cm (5.3 in)	37 of 100 (Notable)
Bruning	United States	Record snow depth	25.4 cm (10.0 in)	36 of 100 (Notable)
Upland 2NE	United States	Record snow depth	35.6 cm (14.0 in)	36 of 100 (Notable)
Speaks 2	United States	Record daily precipitation	59.7 mm (2.4 in)	36 of 100 (Notable)
Mobile Dwtn AP	United States	Record daily precipitation	111.8 mm (4.4 in)	36 of 100 (Notable)
Trujillo Alto 2 SSW	Puerto Rico [United States]	Record low minimum temperature	15.6 C (60.1 F)	35 of 100 (Notable)

Counts by Type and Timescale

818 records

Records set or tied on 12 December 2009 by type: Highest daily maximum 117, Lowest daily maximum 106, Highest daily minimum 132, Lowest daily minimum 78, Heaviest daily rainfall 148, Heaviest daily snowfall 46, Deepest snow cover 191.

Records on 12 December 2009 by type
Record type	Records
Highest daily maximum	117
Lowest daily maximum	106
Highest daily minimum	132
Lowest daily minimum	78
Heaviest daily rainfall	148
Heaviest daily snowfall	46
Deepest snow cover	191

Records on 12 December 2009 by timescale: all-time 1, monthly 32, daily 785.

How Much Records Were Beaten By

611 broken records

Margins by which the 611 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

12 December 2009

Top 20 records on 12 December 2009 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 December 2009	Concordia ASOS, US	daily snow depth	30.5 cm (12.0 in)	22.9 cm (9.0 in)	100 years	80 of 100 (Exceptional)
12 December 2009	McDermitt, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	96 years	66 of 100 (Major)
12 December 2009	Drewsey, US	all-time snowfall	38.1 cm (15.0 in)	17.8 cm (7.0 in)	5 years	65 of 100 (Major)
12 December 2009	Rye Patch Dam, US	daily snowfall	10.2 cm (4.0 in)	8.7 cm (3.4 in)	74 years	55 of 100 (Notable)
12 December 2009	Ignacio Zaragoza -Belen-, MX	daily rain	50.8 mm (2.0 in)	44.4 mm (1.7 in)	34 years	54 of 100 (Notable)
12 December 2009	Beloit, US	daily snow depth	20.3 cm (8.0 in)	10.1 cm (4.0 in)	90 years	53 of 100 (Notable)
12 December 2009	Moab, US	daily snow depth	17.8 cm (7.0 in)	7.6 cm (3.0 in)	78 years	53 of 100 (Notable)
12 December 2009	Jewell, US	daily snow depth	30.5 cm (12.0 in)	17.8 cm (7.0 in)	54 years	51 of 100 (Notable)
12 December 2009	Channel Island, AU	daily rain	117.2 mm (4.6 in)	66.4 mm (2.6 in)	59 years	50 of 100 (Notable)
12 December 2009	Minneapolis, US	daily snow depth	20.3 cm (8.0 in)	5.1 cm (2.0 in)	100 years	50 of 100 (Notable)
12 December 2009	Talbotton, US	daily rain	63.5 mm (2.5 in)	16.0 mm (0.6 in)	100 years	49 of 100 (Notable)
12 December 2009	Mobile, US	daily rain	103.1 mm (4.1 in)	50.8 mm (2.0 in)	48 years	49 of 100 (Notable)
12 December 2009	Crystal Lake Fc238C, US	daily rain	132.8 mm (5.2 in)	112.5 mm (4.4 in)	44 years	48 of 100 (Notable)
12 December 2009	Orleans 2 W, US	daily snow depth	35.6 cm (14.0 in)	25.4 cm (10.0 in)	2 years	48 of 100 (Notable)
12 December 2009	Greenfield, US	daily snow depth	38.1 cm (15.0 in)	17.8 cm (7.0 in)	36 years	47 of 100 (Notable)
12 December 2009	Lincoln 1 SE, US	daily snow depth	25.4 cm (10.0 in)	15.2 cm (6.0 in)	36 years	47 of 100 (Notable)
12 December 2009	Fruita, US	daily snow depth	17.8 cm (7.0 in)	5.1 cm (2.0 in)	100 years	46 of 100 (Notable)
12 December 2009	Lebanon, US	daily snow depth	38.1 cm (15.0 in)	12.7 cm (5.0 in)	48 years	46 of 100 (Notable)
12 December 2009	Shenandoah, US	daily snow depth	40.6 cm (16.0 in)	15.2 cm (6.0 in)	48 years	45 of 100 (Notable)
12 December 2009	Kalispell Glacier AP, US	daily snowfall	19.1 cm (7.5 in)	6.9 cm (2.7 in)	63 years	45 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 818 records.

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

Records on 12-12 in each year
Year	Records
1796	2
1798	1
1802	1
1808	2
1814	1
1825	2
1831	1
1835	2
1846	1
1855	2
1861	1
1863	3
1870	2
1871	5
1873	2
1879	2
1882	3
1887	1
1889	1
1891	2
1892	2
1893	8
1894	3
1895	1
1896	4
1897	3
1898	20
1899	11
1900	5
1901	4
1902	7
1903	18
1904	20
1905	10
1906	14
1907	8
1908	25
1909	20
1910	39
1911	104
1912	53
1913	20
1914	19
1915	46
1916	115
1917	246
1918	33
1919	23
1920	41
1921	63
1922	61
1923	91
1924	130
1925	75
1926	143
1927	335
1928	234
1929	405
1930	45
1931	522
1932	813
1933	358
1934	430
1935	266
1936	142
1937	468
1938	103
1939	418
1940	621
1941	260
1942	257
1943	165
1944	688
1945	212
1946	761
1947	295
1948	282
1949	789
1950	364
1951	175
1952	501
1953	288
1954	696
1955	381
1956	441
1957	1,118
1958	884
1959	464
1960	710
1961	1,481
1962	1,495
1963	439
1964	459
1965	1,045
1966	369
1967	565
1968	727
1969	499
1970	366
1971	585
1972	1,669
1973	397
1974	191
1975	492
1976	319
1977	907
1978	382
1979	1,016
1980	583
1981	734
1982	867
1983	816
1984	808
1985	1,384
1986	408
1987	468
1988	1,030
1989	930
1990	676
1991	1,980
1992	818
1993	887
1994	1,172
1995	2,030
1996	1,391
1997	869
1998	1,103
1999	952
2000	2,510
2001	700
2002	683
2003	537
2004	727
2005	769
2006	886
2007	1,315
2008	1,424
2009	818
2010	1,501
2011	621
2012	684
2013	646
2014	1,040
2015	1,496
2016	530
2017	808
2018	256
2019	418
2020	507
2021	441
2022	767
2023	544
2024	328
2025	1,485

Download the Data

Data for records on 2009-12-12: 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	497
50 to 100	75
100 to 150	24
150 to 200	11
200 to 250	3
250 to 300	1