Weather Records on 20 December 2001

523 weather records were set or tied worldwide on 20 December 2001. Highest significance: Central Michigan UNIV, US.

Key Facts for 20 December 2001

On 20 December 2001, 523 weather records were set or tied at long-record stations worldwide.
218 were record highs and 156 were record lows, counting maximum and minimum temperature.
By timescale, 5 were all-time records, 23 monthly and 495 daily.
Central Michigan UNIV set a monthly record daily precipitation of 78.7 mm (3.1 in) on 20 December 2001.
Across 163 earlier years (1793 to 2025) the same calendar date averaged 467 records.

Record Map

523 stations

523 station records on 20 December 2001 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 20 December 2001: highest significance records shown on the map
Station	Country	Type	Value	Significance
Central Michigan UNIV	United States	Record daily precipitation	78.7 mm (3.1 in)	62 of 100 (Major)
Buenavista	Mexico	Record daily precipitation	140.0 mm (5.5 in)	61 of 100 (Major)
Salto de Agua (Dge)	Mexico	Record daily precipitation	221.0 mm (8.7 in)	52 of 100 (Notable)
Coloso	Puerto Rico [United States]	Record daily precipitation	54.6 mm (2.1 in)	51 of 100 (Notable)
Tenasco	Mexico	Record daily precipitation	39.9 mm (1.6 in)	48 of 100 (Notable)
Monterey	United States	Record daily precipitation	33.3 mm (1.3 in)	44 of 100 (Notable)
Jonuta	Mexico	Record daily precipitation	129.8 mm (5.1 in)	43 of 100 (Notable)
Aibonito 1 S	Puerto Rico [United States]	Record high minimum temperature	20.0 C (68.0 F)	42 of 100 (Notable)
Xochitlan Todos Santos	Mexico	Record high maximum temperature	35.0 C (95.0 F)	40 of 100 (Notable)
Larissa	Greece	Record low maximum temperature	-10.0 C (14.0 F)	37 of 100 (Notable)
Florina	Greece	Record low maximum temperature	-12.0 C (10.4 F)	36 of 100 (Notable)
Alvaro Obregon	Mexico	Record daily precipitation	46.2 mm (1.8 in)	36 of 100 (Notable)
Anchialos	Greece	Record low minimum temperature	-10.4 C (13.3 F)	35 of 100 (Notable)
Canyon Dam	United States	Record daily snowfall	30.5 cm (12.0 in)	35 of 100 (Notable)
Lamia	Greece	Record low minimum temperature	-12.6 C (9.3 F)	34 of 100 (Routine)
Marseille Obs. Palais-Lonchamp	France	Record low maximum temperature	3.6 C (38.5 F)	32 of 100 (Routine)
El Sabino	Mexico	Record high minimum temperature	14.4 C (57.9 F)	32 of 100 (Routine)
Lakeview 2 NNW	United States	Record snow depth	116.8 cm (46.0 in)	32 of 100 (Routine)
Palizada	Mexico	Record daily precipitation	89.9 mm (3.5 in)	31 of 100 (Routine)
Ixtepeji	Mexico	Record low maximum temperature	12.8 C (55.0 F)	30 of 100 (Routine)
Frolovo	Russia	Record low maximum temperature	-20.2 C (-4.4 F)	30 of 100 (Routine)
Frolovo	Russia	Record low minimum temperature	-31.0 C (-23.8 F)	30 of 100 (Routine)
So Entrance Yosemite Np	United States	Record snow depth	81.3 cm (32.0 in)	30 of 100 (Routine)
Mixquiahuala (Smn)	Mexico	Record low maximum temperature	11.7 C (53.1 F)	29 of 100 (Routine)
Celaya (Smn)	Mexico	Record high maximum temperature	31.7 C (89.1 F)	27 of 100 (Routine)
Certkovo	Russia	Record low maximum temperature	-20.1 C (-4.2 F)	27 of 100 (Routine)
Linguere	Senegal	Record high maximum temperature	39.9 C (103.8 F)	27 of 100 (Routine)
Khlong Yai	Thailand	Record high maximum temperature	34.6 C (94.3 F)	27 of 100 (Routine)
Tanagra	Greece	Record low minimum temperature	-7.6 C (18.3 F)	26 of 100 (Routine)
Sinop	Turkey	Record daily precipitation	33.0 mm (1.3 in)	26 of 100 (Routine)
Musgrave	Australia	Record daily precipitation	94.2 mm (3.7 in)	25 of 100 (Routine)
Hellinikon	Greece	Record low minimum temperature	-1.8 C (28.8 F)	25 of 100 (Routine)
Skovorodino	Russia	Record high minimum temperature	-15.0 C (5.0 F)	25 of 100 (Routine)
Mather	United States	Record snow depth	50.8 cm (20.0 in)	25 of 100 (Routine)
El-Golea	Algeria	Record low maximum temperature	9.0 C (48.2 F)	24 of 100 (Routine)
Vacoas (Mauritius)	Mauritius	Record high maximum temperature	30.5 C (86.9 F)	24 of 100 (Routine)
Samaria	Mexico	Record daily precipitation	30.2 mm (1.2 in)	24 of 100 (Routine)
Serafimovic	Russia	Record low minimum temperature	-29.0 C (-20.2 F)	24 of 100 (Routine)
Chardzhev	Turkmenistan	Record high minimum temperature	9.2 C (48.6 F)	24 of 100 (Routine)
Methoni	Greece	Record low minimum temperature	1.4 C (34.5 F)	23 of 100 (Routine)
Yeneka	Mexico	Record high maximum temperature	36.7 C (98.1 F)	23 of 100 (Routine)
Ignacio Lopez Rayon	Mexico	Record high minimum temperature	22.8 C (73.0 F)	23 of 100 (Routine)
San Miguel Tlaixpan	Mexico	Record high maximum temperature	25.0 C (77.0 F)	23 of 100 (Routine)
Buctzotz	Mexico	Record high minimum temperature	21.7 C (71.1 F)	23 of 100 (Routine)
Morozovsk	Russia	Record low minimum temperature	-30.3 C (-22.5 F)	23 of 100 (Routine)
Jendouba	Tunisia	Record low maximum temperature	9.6 C (49.3 F)	23 of 100 (Routine)
Bajramaly	Turkmenistan	Record high minimum temperature	12.3 C (54.1 F)	23 of 100 (Routine)
Homer 3NE	United States	Record daily snowfall	7.6 cm (3.0 in)	23 of 100 (Routine)
Elida	United States	Record high maximum temperature	20.0 C (68.0 F)	23 of 100 (Routine)
Tamdy	Uzbekistan	Record high maximum temperature	21.1 C (70.0 F)	23 of 100 (Routine)
Tamanrasset	Algeria	Record high maximum temperature	27.5 C (81.5 F)	22 of 100 (Routine)
Nice	France	Record low minimum temperature	-0.1 C (31.8 F)	22 of 100 (Routine)
Cocobeach	Gabon	Record high minimum temperature	25.2 C (77.4 F)	22 of 100 (Routine)
Finca Cuxtepeques	Mexico	Record high minimum temperature	17.8 C (64.0 F)	22 of 100 (Routine)
Tlacotepec	Mexico	Record high minimum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Yecora (Smn)	Mexico	Record low minimum temperature	-10.0 C (14.0 F)	22 of 100 (Routine)
Balancan de Dominguez (Dge)	Mexico	Record daily precipitation	63.8 mm (2.5 in)	22 of 100 (Routine)
Sanders	United States	Record high maximum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Garden Valley	United States	Record snow depth	68.6 cm (27.0 in)	22 of 100 (Routine)
Richfield	United States	Record snow depth	68.6 cm (27.0 in)	22 of 100 (Routine)

Counts by Type and Timescale

523 records

Records set or tied on 20 December 2001 by type: Highest daily maximum 109, Lowest daily maximum 78, Highest daily minimum 109, Lowest daily minimum 78, Heaviest daily rainfall 119, Heaviest daily snowfall 10, Deepest snow cover 20.

Records on 20 December 2001 by type
Record type	Records
Highest daily maximum	109
Lowest daily maximum	78
Highest daily minimum	109
Lowest daily minimum	78
Heaviest daily rainfall	119
Heaviest daily snowfall	10
Deepest snow cover	20

Records on 20 December 2001 by timescale: all-time 5, monthly 23, daily 495.

How Much Records Were Beaten By

416 broken records

Margins by which the 416 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 203.0. Ties are not counted.

Top 20 by Significance

20 December 2001

Top 20 records on 20 December 2001 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
20 December 2001	Central Michigan UNIV, US	monthly rain	78.7 mm (3.1 in)	24.3 mm (1.0 in)	19 years	62 of 100 (Major)
20 December 2001	Buenavista, MX	monthly rain	140.0 mm (5.5 in)	56.2 mm (2.2 in)	28 years	61 of 100 (Major)
20 December 2001	Salto de Agua (Dge), MX	daily rain	221.0 mm (8.7 in)	162.6 mm (6.4 in)	24 years	52 of 100 (Notable)
20 December 2001	Coloso, PR	daily rain	54.6 mm (2.1 in)	40.6 mm (1.6 in)	18 years	51 of 100 (Notable)
20 December 2001	Tenasco, MX	daily rain	39.9 mm (1.6 in)	29.0 mm (1.1 in)	14 years	48 of 100 (Notable)
20 December 2001	Monterey, US	daily rain	33.3 mm (1.3 in)	20.6 mm (0.8 in)	60 years	44 of 100 (Notable)
20 December 2001	Jonuta, MX	daily rain	129.8 mm (5.1 in)	69.9 mm (2.8 in)	24 years	43 of 100 (Notable)
20 December 2001	Aibonito 1 S, PR	daily high min	20.0 C (68.0 F)	1.1 C (2.0 F)	94 years	42 of 100 (Notable)
20 December 2001	Xochitlan Todos Santos, MX	daily high max	35.0 C (95.0 F)	6.1 C (11.0 F)	48 years	40 of 100 (Notable)
20 December 2001	Larissa, GR	all-time low max	-10.0 C (14.0 F)	1.4 C (2.5 F)	33 years	37 of 100 (Notable)
20 December 2001	Florina, GR	all-time low max	-12.0 C (10.4 F)	1.0 C (1.8 F)	38 years	36 of 100 (Notable)
20 December 2001	Alvaro Obregon, MX	daily rain	46.2 mm (1.8 in)	22.3 mm (0.9 in)	36 years	36 of 100 (Notable)
20 December 2001	Anchialos, GR	all-time low min	-10.4 C (13.3 F)	0.6 C (1.1 F)	33 years	35 of 100 (Notable)
20 December 2001	Canyon Dam, US	daily snowfall	30.5 cm (12.0 in)	5.1 cm (2.0 in)	76 years	35 of 100 (Notable)
20 December 2001	Lamia, GR	all-time low min	-12.6 C (9.3 F)	4.0 C (7.2 F)	0 years	34 of 100 (Routine)
20 December 2001	Marseille Obs. Palais-Lonchamp, FR	daily low max	3.6 C (38.5 F)	0.4 C (0.7 F)	70 years	32 of 100 (Routine)
20 December 2001	El Sabino, MX	daily high min	14.4 C (57.9 F)	4.4 C (7.9 F)	32 years	32 of 100 (Routine)
20 December 2001	Lakeview 2 NNW, US	all-time snow depth	116.8 cm (46.0 in)	2.5 cm (1.0 in)	0 years	32 of 100 (Routine)
20 December 2001	Palizada, MX	daily rain	89.9 mm (3.5 in)	40.4 mm (1.6 in)	24 years	31 of 100 (Routine)
20 December 2001	Ixtepeji, MX	daily low max	12.8 C (55.0 F)	5.0 C (9.0 F)	46 years	30 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 2001

Records set or tied on this calendar date in each year from 1793 to 2001. 2001 had 523 records.

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

Records on 12-20 in each year
Year	Records
1793	1
1795	1
1804	1
1805	2
1808	1
1815	1
1828	1
1837	1
1846	1
1855	8
1858	1
1860	1
1866	1
1867	1
1868	1
1869	1
1871	2
1874	3
1875	1
1877	2
1878	1
1879	1
1880	1
1881	1
1882	1
1884	4
1885	1
1886	4
1889	4
1890	2
1891	2
1892	1
1894	2
1895	8
1896	1
1897	4
1898	2
1899	1
1900	7
1901	8
1902	14
1903	17
1904	9
1905	5
1906	5
1907	11
1908	5
1909	22
1910	17
1911	24
1912	27
1913	7
1914	43
1915	18
1916	45
1917	33
1918	18
1919	25
1920	22
1921	101
1922	88
1923	215
1924	332
1925	96
1926	163
1927	200
1928	93
1929	256
1930	67
1931	536
1932	170
1933	492
1934	265
1935	152
1936	416
1937	181
1938	240
1939	308
1940	965
1941	633
1942	817
1943	193
1944	340
1945	430
1946	327
1947	385
1948	345
1949	1,141
1950	758
1951	926
1952	394
1953	385
1954	416
1955	726
1956	471
1957	1,354
1958	382
1959	142
1960	354
1961	369
1962	475
1963	875
1964	499
1965	353
1966	555
1967	1,370
1968	482
1969	514
1970	518
1971	441
1972	448
1973	1,184
1974	328
1975	610
1976	382
1977	484
1978	910
1979	600
1980	667
1981	1,681
1982	712
1983	2,995
1984	1,411
1985	1,035
1986	321
1987	1,179
1988	760
1989	1,812
1990	1,885
1991	1,172
1992	1,134
1993	1,266
1994	813
1995	1,128
1996	1,448
1997	651
1998	1,110
1999	938
2000	1,150
2001	523
2002	943
2003	1,315
2004	836
2005	515
2006	1,387
2007	986
2008	1,356
2009	1,502
2010	2,055
2011	846
2012	1,131
2013	584
2014	524
2015	1,238
2016	603
2017	688
2018	592
2019	731
2020	554
2021	442
2022	567
2023	1,242
2024	897
2025	1,166

Download the Data

Data for records on 2001-12-20: 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	397
50 to 100	12
100 to 150	4
150 to 200	2
200 to 250	1