Weather Records on 18 December 2021

762 weather records were set or tied worldwide on 18 December 2021. Highest significance: Ozark Beach 2 NNE, US.

Key Facts for 18 December 2021

On 18 December 2021, 762 weather records were set or tied at long-record stations worldwide.
462 were record highs and 70 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 6 monthly and 754 daily.
Ozark Beach 2 NNE set a daily record precipitation of 109.0 mm (4.3 in) on 18 December 2021.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 478 records.

Record Map

762 stations

762 station records on 18 December 2021 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 December 2021: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ozark Beach 2 NNE	United States	Record daily precipitation	109.0 mm (4.3 in)	67 of 100 (Major)
Wasola 5N	United States	Record daily precipitation	130.6 mm (5.1 in)	66 of 100 (Major)
Round Spring 2SW	United States	Record daily precipitation	85.6 mm (3.4 in)	63 of 100 (Major)
Mtn Grove 2 N	United States	Record daily precipitation	75.2 mm (3.0 in)	58 of 100 (Notable)
Hikone	Japan	Record daily precipitation	39.1 mm (1.5 in)	56 of 100 (Notable)
W Plains	United States	Record daily precipitation	91.9 mm (3.6 in)	56 of 100 (Notable)
Anna 4 N	United States	Record daily precipitation	67.1 mm (2.6 in)	55 of 100 (Notable)
Salem	United States	Record daily precipitation	55.1 mm (2.2 in)	55 of 100 (Notable)
Britton	United States	Record daily snowfall	25.4 cm (10.0 in)	55 of 100 (Notable)
Summersville 3 SE	United States	Record daily precipitation	101.6 mm (4.0 in)	54 of 100 (Notable)
Omaha	United States	Record daily precipitation	95.3 mm (3.8 in)	53 of 100 (Notable)
Conroe	United States	Record daily precipitation	82.3 mm (3.2 in)	53 of 100 (Notable)
Centralia	United States	Record daily precipitation	58.9 mm (2.3 in)	52 of 100 (Notable)
Red Bud 2 S	United States	Record daily precipitation	62.2 mm (2.4 in)	51 of 100 (Notable)
Victor 4 N	United States	Record daily snowfall	15.2 cm (6.0 in)	50 of 100 (Notable)
Carbondale Sewage Plt	United States	Record daily precipitation	53.8 mm (2.1 in)	49 of 100 (Notable)
Olney 2S	United States	Record daily precipitation	40.9 mm (1.6 in)	48 of 100 (Notable)
Tonopah	United States	Record low minimum temperature	-18.9 C (-2.0 F)	48 of 100 (Notable)
Lisbon	United States	Record daily snowfall	7.9 cm (3.1 in)	48 of 100 (Notable)
St. Brandon (St. Ra	Mauritius	Record daily precipitation	69.1 mm (2.7 in)	46 of 100 (Notable)
Olmsted L&D	United States	Record daily precipitation	41.9 mm (1.6 in)	46 of 100 (Notable)
Dora 3SE	United States	Record daily precipitation	94.7 mm (3.7 in)	46 of 100 (Notable)
Potosi 4 SW	United States	Record daily precipitation	58.9 mm (2.3 in)	46 of 100 (Notable)
Lead Hill	United States	Record daily precipitation	78.0 mm (3.1 in)	45 of 100 (Notable)
Wappapello Dam	United States	Record daily precipitation	51.6 mm (2.0 in)	45 of 100 (Notable)
Winthrop 1 WSW	United States	Record daily snowfall	18.8 cm (7.4 in)	45 of 100 (Notable)
Tyler Pounds Fld	United States	Record daily precipitation	44.7 mm (1.8 in)	45 of 100 (Notable)
University	United States	Record high minimum temperature	17.8 C (64.0 F)	44 of 100 (Notable)
Appling 2 NW	United States	Record daily precipitation	55.9 mm (2.2 in)	43 of 100 (Notable)
Ashley	United States	Record daily snowfall	20.3 cm (8.0 in)	43 of 100 (Notable)
Batesburg	United States	Record high minimum temperature	13.9 C (57.0 F)	43 of 100 (Notable)
Beaumont City	United States	Record high maximum temperature	27.8 C (82.0 F)	43 of 100 (Notable)
Beaumont City	United States	Record high minimum temperature	21.7 C (71.1 F)	43 of 100 (Notable)
Hawkins	United States	Record daily precipitation	61.5 mm (2.4 in)	43 of 100 (Notable)
Sewanee	United States	Record high minimum temperature	14.4 C (57.9 F)	42 of 100 (Notable)
Monroe	United States	Record daily precipitation	34.3 mm (1.4 in)	42 of 100 (Notable)
Haboro	Japan	Record daily precipitation	30.0 mm (1.2 in)	41 of 100 (Notable)
Santa Maria	Portugal	Record daily precipitation	80.5 mm (3.2 in)	41 of 100 (Notable)
Palestine	United States	Record daily precipitation	44.7 mm (1.8 in)	41 of 100 (Notable)
Deseret	United States	Record low maximum temperature	-8.3 C (17.1 F)	41 of 100 (Notable)
Dandaloo (Tyrie Homestead)	Australia	Record daily precipitation	30.0 mm (1.2 in)	40 of 100 (Notable)
Oneonta	United States	Record high minimum temperature	15.0 C (59.0 F)	40 of 100 (Notable)
New Iberia AP - Acadiana Rgnl	United States	Record high maximum temperature	26.1 C (79.0 F)	40 of 100 (Notable)
Santuck	United States	Record high maximum temperature	25.0 C (77.0 F)	40 of 100 (Notable)
Conroe	United States	Record high minimum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Harlingen	United States	Record high minimum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Clearbrook	United States	Record daily precipitation	35.6 mm (1.4 in)	40 of 100 (Notable)
Dutch Harbor	United States	Record high maximum temperature	10.0 C (50.0 F)	40 of 100 (Notable)
Mtn Home 1 NNW	United States	Record daily precipitation	90.4 mm (3.6 in)	39 of 100 (Notable)
Natchez	United States	Record high minimum temperature	17.8 C (64.0 F)	39 of 100 (Notable)
Mansfield	United States	Record daily precipitation	48.3 mm (1.9 in)	39 of 100 (Notable)
Allegany Sp	United States	Record high maximum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Johnston 4 SW	United States	Record daily precipitation	37.8 mm (1.5 in)	39 of 100 (Notable)
Conroe	United States	Record high maximum temperature	27.2 C (81.0 F)	39 of 100 (Notable)
Portland Intl AP	United States	Record daily precipitation	32.0 mm (1.3 in)	39 of 100 (Notable)
Tromso	Norway	Record daily precipitation	25.7 mm (1.0 in)	38 of 100 (Notable)
Tromso - Langnes	Norway	Record daily precipitation	28.0 mm (1.1 in)	38 of 100 (Notable)
Clarksville 6 NE	United States	Record daily precipitation	71.6 mm (2.8 in)	38 of 100 (Notable)
Springhill	United States	Record daily precipitation	35.6 mm (1.4 in)	38 of 100 (Notable)
Kingsport	United States	Record high minimum temperature	10.6 C (51.1 F)	38 of 100 (Notable)

Counts by Type and Timescale

762 records

Records set or tied on 18 December 2021 by type: Highest daily maximum 200, Lowest daily maximum 37, Highest daily minimum 262, Lowest daily minimum 33, Heaviest daily rainfall 194, Heaviest daily snowfall 22, Deepest snow cover 14.

Records on 18 December 2021 by type
Record type	Records
Highest daily maximum	200
Lowest daily maximum	37
Highest daily minimum	262
Lowest daily minimum	33
Heaviest daily rainfall	194
Heaviest daily snowfall	22
Deepest snow cover	14

Records on 18 December 2021 by timescale: all-time 2, monthly 6, daily 754.

How Much Records Were Beaten By

625 broken records

Margins by which the 625 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 198.0. Ties are not counted.

Top 20 by Significance

18 December 2021

Top 20 records on 18 December 2021 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 2021	Ozark Beach 2 NNE, US	daily rain	109.0 mm (4.3 in)	78.0 mm (3.1 in)	62 years	67 of 100 (Major)
18 December 2021	Wasola 5N, US	daily rain	130.6 mm (5.1 in)	107.5 mm (4.2 in)	62 years	66 of 100 (Major)
18 December 2021	Round Spring 2SW, US	daily rain	85.6 mm (3.4 in)	63.0 mm (2.5 in)	52 years	63 of 100 (Major)
18 December 2021	Mtn Grove 2 N, US	daily rain	75.2 mm (3.0 in)	41.4 mm (1.6 in)	62 years	58 of 100 (Notable)
18 December 2021	Hikone, JP	daily rain	39.1 mm (1.5 in)	24.4 mm (1.0 in)	58 years	56 of 100 (Notable)
18 December 2021	W Plains, US	daily rain	91.9 mm (3.6 in)	69.8 mm (2.7 in)	31 years	56 of 100 (Notable)
18 December 2021	Anna 4 N, US	daily rain	67.1 mm (2.6 in)	21.9 mm (0.9 in)	121 years	55 of 100 (Notable)
18 December 2021	Salem, US	daily rain	55.1 mm (2.2 in)	18.3 mm (0.7 in)	96 years	55 of 100 (Notable)
18 December 2021	Britton, US	daily snowfall	25.4 cm (10.0 in)	19.8 cm (7.8 in)	19 years	55 of 100 (Notable)
18 December 2021	Summersville 3 SE, US	monthly rain	101.6 mm (4.0 in)	18.8 mm (0.7 in)	78 years	54 of 100 (Notable)
18 December 2021	Omaha, US	daily rain	95.3 mm (3.8 in)	72.4 mm (2.9 in)	26 years	53 of 100 (Notable)
18 December 2021	Conroe, US	daily rain	82.3 mm (3.2 in)	42.2 mm (1.7 in)	64 years	53 of 100 (Notable)
18 December 2021	Centralia, US	daily rain	58.9 mm (2.3 in)	35.8 mm (1.4 in)	31 years	52 of 100 (Notable)
18 December 2021	Red Bud 2 S, US	daily rain	62.2 mm (2.4 in)	34.3 mm (1.4 in)	62 years	51 of 100 (Notable)
18 December 2021	Victor 4 N, US	daily snowfall	15.2 cm (6.0 in)	10.1 cm (4.0 in)	60 years	50 of 100 (Notable)
18 December 2021	Carbondale Sewage Plt, US	daily rain	53.8 mm (2.1 in)	15.2 mm (0.6 in)	92 years	49 of 100 (Notable)
18 December 2021	Olney 2S, US	daily rain	40.9 mm (1.6 in)	9.4 mm (0.37 in)	125 years	48 of 100 (Notable)
18 December 2021	Tonopah, US	daily low min	-18.9 C (-2.0 F)	4.5 C (8.1 F)	96 years	48 of 100 (Notable)
18 December 2021	Lisbon, US	daily snowfall	7.9 cm (3.1 in)	5.4 cm (2.1 in)	87 years	48 of 100 (Notable)
18 December 2021	St. Brandon (St. Ra, MU	daily rain	69.1 mm (2.7 in)	53.1 mm (2.1 in)	4 years	46 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

1793 to 2021

Records set or tied on this calendar date in each year from 1793 to 2021. 2021 had 762 records.

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

Records on 12-18 in each year
Year	Records
1793	1
1796	1
1805	1
1814	1
1825	1
1846	1
1849	1
1852	2
1858	1
1859	4
1862	2
1864	1
1868	1
1873	1
1875	1
1876	2
1878	1
1881	2
1882	1
1884	2
1886	1
1887	1
1888	1
1889	4
1890	5
1892	4
1894	8
1895	1
1897	4
1898	9
1899	3
1900	2
1901	6
1902	33
1903	11
1904	25
1905	3
1906	21
1907	15
1908	16
1909	18
1910	19
1911	9
1912	33
1913	38
1914	20
1915	28
1916	57
1917	62
1918	21
1919	117
1920	77
1921	123
1922	108
1923	378
1924	480
1925	74
1926	173
1927	151
1928	165
1929	366
1930	230
1931	360
1932	353
1933	506
1934	209
1935	138
1936	466
1937	459
1938	185
1939	900
1940	242
1941	213
1942	281
1943	419
1944	191
1945	598
1946	199
1947	266
1948	354
1949	561
1950	289
1951	867
1952	450
1953	373
1954	507
1955	611
1956	333
1957	901
1958	524
1959	477
1960	477
1961	885
1962	759
1963	571
1964	840
1965	402
1966	644
1967	1,105
1968	488
1969	376
1970	502
1971	387
1972	375
1973	1,008
1974	229
1975	625
1976	459
1977	992
1978	946
1979	1,087
1980	772
1981	1,362
1982	537
1983	2,014
1984	1,439
1985	1,384
1986	875
1987	1,505
1988	1,061
1989	1,818
1990	1,367
1991	756
1992	1,045
1993	697
1994	643
1995	1,065
1996	1,833
1997	1,195
1998	863
1999	923
2000	1,572
2001	906
2002	1,437
2003	987
2004	506
2005	987
2006	1,167
2007	746
2008	1,014
2009	1,253
2010	1,322
2011	697
2012	729
2013	513
2014	556
2015	1,254
2016	1,821
2017	516
2018	464
2019	679
2020	326
2021	762
2022	536
2023	1,293
2024	780
2025	994

Download the Data

Data for records on 2021-12-18: 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 25	579
25 to 50	27
50 to 75	9
75 to 100	3
100 to 125	4
125 to 150	0
150 to 175	1
175 to 200	2