Weather Records on 22 December 1999

939 weather records were set or tied worldwide on 22 December 1999. Highest significance: Basin, US.

Key Facts for 22 December 1999

On 22 December 1999, 939 weather records were set or tied at long-record stations worldwide.
304 were record highs and 383 were record lows, counting maximum and minimum temperature.
By timescale, 9 were all-time records, 40 monthly and 890 daily.
Basin set a daily record snowfall of 15.2 cm (6.0 in) on 22 December 1999.
Across 163 earlier years (1793 to 2025) the same calendar date averaged 509 records.

Record Map

939 stations

939 station records on 22 December 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 22 December 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Basin	United States	Record daily snowfall	15.2 cm (6.0 in)	62 of 100 (Major)
Musgrave	Australia	Record daily precipitation	129.2 mm (5.1 in)	55 of 100 (Notable)
Cooper Lake Project	United States	Record daily precipitation	59.7 mm (2.4 in)	55 of 100 (Notable)
Skwentna	United States	Record daily precipitation	79.8 mm (3.1 in)	53 of 100 (Notable)
Skjak	Norway	Record snow depth	63.0 cm (24.8 in)	50 of 100 (Notable)
Valdez WSO	United States	Record daily precipitation	103.1 mm (4.1 in)	50 of 100 (Notable)
Ft Bragg 5 N	United States	Record high maximum temperature	20.6 C (69.1 F)	49 of 100 (Notable)
Snowshoe Lake	United States	Record daily precipitation	40.6 mm (1.6 in)	49 of 100 (Notable)
Seward AP	United States	Record daily precipitation	87.6 mm (3.4 in)	48 of 100 (Notable)
Minchumina	United States	Record daily snowfall	21.6 cm (8.5 in)	46 of 100 (Notable)
Waterloo	United States	Record snow depth	10.2 cm (4.0 in)	44 of 100 (Notable)
Vik I Sogn III	Norway	Record snow depth	54.0 cm (21.3 in)	43 of 100 (Notable)
Downieville	United States	Record high maximum temperature	18.9 C (66.0 F)	42 of 100 (Notable)
Newport	United States	Record high maximum temperature	18.3 C (64.9 F)	42 of 100 (Notable)
El Zapote	Mexico	Record low maximum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Nicosia	Cyprus	Record high minimum temperature	12.9 C (55.2 F)	40 of 100 (Notable)
Tatarsk	Russia	Record high minimum temperature	-1.5 C (29.3 F)	40 of 100 (Notable)
Orland	United States	Record high maximum temperature	21.7 C (71.1 F)	40 of 100 (Notable)
Manley Hot Springs	United States	Record daily snowfall	11.4 cm (4.5 in)	39 of 100 (Notable)
Snowshoe Lake	United States	Record daily snowfall	31.8 cm (12.5 in)	39 of 100 (Notable)
Umiat	United States	Record daily snowfall	8.1 cm (3.2 in)	39 of 100 (Notable)
Durham Downs	Australia	Record daily precipitation	28.0 mm (1.1 in)	38 of 100 (Notable)
X-Pichil	Mexico	Record daily precipitation	39.9 mm (1.6 in)	38 of 100 (Notable)
Sandane	Norway	Record snow depth	78.0 cm (30.7 in)	38 of 100 (Notable)
Bosque del Apache	United States	Record low minimum temperature	-17.8 C (0.0 F)	38 of 100 (Notable)
Sacramento 5 ESE	United States	Record high maximum temperature	19.4 C (66.9 F)	38 of 100 (Notable)
Ixcateopan de Tlapa	Mexico	Record low maximum temperature	20.0 C (68.0 F)	37 of 100 (Notable)
Berkeley	United States	Record high maximum temperature	20.6 C (69.1 F)	37 of 100 (Notable)
Graton	United States	Record high maximum temperature	23.9 C (75.0 F)	37 of 100 (Notable)
Livermore	United States	Record high maximum temperature	21.7 C (71.1 F)	37 of 100 (Notable)
Vacaville	United States	Record high maximum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Marinette	United States	Record low maximum temperature	-13.3 C (8.1 F)	37 of 100 (Notable)
San Jeronimo	Mexico	Record low minimum temperature	16.1 C (61.0 F)	36 of 100 (Notable)
Myklebust I Breim	Norway	Record snow depth	75.0 cm (29.5 in)	36 of 100 (Notable)
Marysville	United States	Record high maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Sonoma	United States	Record high maximum temperature	21.7 C (71.1 F)	36 of 100 (Notable)
Brookings	United States	Record high maximum temperature	22.8 C (73.0 F)	36 of 100 (Notable)
Chico UNIV Farm	United States	Record high maximum temperature	22.8 C (73.0 F)	35 of 100 (Notable)
College Obsy	United States	Record daily snowfall	35.6 cm (14.0 in)	35 of 100 (Notable)
Madras/Minambakkam	India	Record daily precipitation	57.9 mm (2.3 in)	34 of 100 (Routine)
Kustanai	Kazakhstan	Record high maximum temperature	3.0 C (37.4 F)	34 of 100 (Routine)
Felipe Carrillo Puerto (Dge)	Mexico	Record daily precipitation	39.9 mm (1.6 in)	34 of 100 (Routine)
Chernjaevo	Russia	Record high minimum temperature	-13.9 C (7.0 F)	34 of 100 (Routine)
San Rafael-Civic Ctr	United States	Record high maximum temperature	21.1 C (70.0 F)	34 of 100 (Routine)
Eagle	United States	Record high maximum temperature	7.8 C (46.0 F)	34 of 100 (Routine)
Haines AP	United States	Record high maximum temperature	10.6 C (51.1 F)	34 of 100 (Routine)
Montezuma 1 W	United States	Record daily snowfall	5.1 cm (2.0 in)	33 of 100 (Routine)
Seaside	United States	Record high maximum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Talkeetna AP	United States	Record high minimum temperature	0.0 C (32.0 F)	33 of 100 (Routine)
Belem de Sao Francisco	Brazil	Record daily precipitation	47.5 mm (1.9 in)	32 of 100 (Routine)
Kentfield	United States	Record high maximum temperature	21.7 C (71.1 F)	32 of 100 (Routine)
Swainsboro	United States	Record daily precipitation	42.4 mm (1.7 in)	32 of 100 (Routine)
Burgess Junction	United States	Record daily snowfall	38.1 cm (15.0 in)	32 of 100 (Routine)
Fort Constantine Station	Australia	Record daily precipitation	107.0 mm (4.2 in)	31 of 100 (Routine)
Zharkent	Kazakhstan	Record high maximum temperature	10.7 C (51.3 F)	31 of 100 (Routine)
Armeria	Mexico	Record low minimum temperature	7.2 C (45.0 F)	31 of 100 (Routine)
Horcones	Mexico	Record low maximum temperature	23.9 C (75.0 F)	31 of 100 (Routine)
Huetamo	Mexico	Record low minimum temperature	8.9 C (48.0 F)	31 of 100 (Routine)
Cloverdale	United States	Record high maximum temperature	24.4 C (75.9 F)	31 of 100 (Routine)
Napa State Hospital	United States	Record high maximum temperature	21.1 C (70.0 F)	31 of 100 (Routine)

Counts by Type and Timescale

939 records

Records set or tied on 22 December 1999 by type: Highest daily maximum 193, Lowest daily maximum 145, Highest daily minimum 111, Lowest daily minimum 238, Heaviest daily rainfall 178, Heaviest daily snowfall 41, Deepest snow cover 33.

Records on 22 December 1999 by type
Record type	Records
Highest daily maximum	193
Lowest daily maximum	145
Highest daily minimum	111
Lowest daily minimum	238
Heaviest daily rainfall	178
Heaviest daily snowfall	41
Deepest snow cover	33

Records on 22 December 1999 by timescale: all-time 9, monthly 40, daily 890.

How Much Records Were Beaten By

753 broken records

Margins by which the 753 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 360.0. Ties are not counted.

Top 20 by Significance

22 December 1999

Top 20 records on 22 December 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
22 December 1999	Basin, US	daily snowfall	15.2 cm (6.0 in)	10.1 cm (4.0 in)	60 years	62 of 100 (Major)
22 December 1999	Musgrave, AU	daily rain	129.2 mm (5.1 in)	66.5 mm (2.6 in)	48 years	55 of 100 (Notable)
22 December 1999	Cooper Lake Project, US	daily rain	59.7 mm (2.4 in)	53.1 mm (2.1 in)	38 years	55 of 100 (Notable)
22 December 1999	Skwentna, US	daily rain	79.8 mm (3.1 in)	71.4 mm (2.8 in)	24 years	53 of 100 (Notable)
22 December 1999	Skjak, NO	daily snow depth	63.0 cm (24.8 in)	13.0 cm (5.1 in)	100 years	50 of 100 (Notable)
22 December 1999	Valdez WSO, US	daily rain	103.1 mm (4.1 in)	51.3 mm (2.0 in)	9 years	50 of 100 (Notable)
22 December 1999	Ft Bragg 5 N, US	daily high max	20.6 C (69.1 F)	2.3 C (4.1 F)	103 years	49 of 100 (Notable)
22 December 1999	Snowshoe Lake, US	daily rain	40.6 mm (1.6 in)	38.3 mm (1.5 in)	22 years	49 of 100 (Notable)
22 December 1999	Seward AP, US	daily rain	87.6 mm (3.4 in)	24.1 mm (0.9 in)	80 years	48 of 100 (Notable)
22 December 1999	Minchumina, US	daily snowfall	21.6 cm (8.5 in)	14.0 cm (5.5 in)	8 years	46 of 100 (Notable)
22 December 1999	Waterloo, US	daily snow depth	10.2 cm (4.0 in)	10.2 cm (4.0 in)	45 years	44 of 100 (Notable)
22 December 1999	Vik I Sogn III, NO	daily snow depth	54.0 cm (21.3 in)	10.0 cm (3.9 in)	80 years	43 of 100 (Notable)
22 December 1999	Downieville, US	daily high max	18.9 C (66.0 F)	5.0 C (9.0 F)	73 years	42 of 100 (Notable)
22 December 1999	Newport, US	daily high max	18.3 C (64.9 F)	1.6 C (2.9 F)	92 years	42 of 100 (Notable)
22 December 1999	El Zapote, MX	daily low max	23.3 C (73.9 F)	6.7 C (12.1 F)	32 years	41 of 100 (Notable)
22 December 1999	Nicosia, CY	daily high min	12.9 C (55.2 F)	1.8 C (3.2 F)	84 years	40 of 100 (Notable)
22 December 1999	Tatarsk, RU	daily high min	-1.5 C (29.3 F)	1.9 C (3.4 F)	94 years	40 of 100 (Notable)
22 December 1999	Orland, US	daily high max	21.7 C (71.1 F)	2.8 C (5.0 F)	84 years	40 of 100 (Notable)
22 December 1999	Manley Hot Springs, US	daily snowfall	11.4 cm (4.5 in)	6.3 cm (2.5 in)	50 years	39 of 100 (Notable)
22 December 1999	Snowshoe Lake, US	all-time snowfall	31.8 cm (12.5 in)	5.1 cm (2.0 in)	10 years	39 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 1999

Records set or tied on this calendar date in each year from 1793 to 1999. 1999 had 939 records.

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

Records on 12-22 in each year
Year	Records
1793	1
1801	1
1804	1
1808	3
1824	1
1825	1
1844	1
1846	1
1855	6
1857	2
1859	1
1860	2
1863	1
1867	1
1868	1
1869	1
1870	2
1872	2
1874	1
1875	5
1877	1
1879	2
1880	1
1881	2
1882	1
1884	1
1886	2
1888	3
1889	2
1890	1
1891	2
1893	2
1894	4
1895	2
1896	1
1897	1
1898	2
1899	4
1900	2
1901	7
1902	9
1903	11
1904	3
1905	6
1906	13
1907	8
1908	29
1909	32
1910	28
1911	31
1912	37
1913	29
1914	159
1915	58
1916	62
1917	12
1918	64
1919	23
1920	36
1921	196
1922	29
1923	267
1924	396
1925	135
1926	188
1927	101
1928	114
1929	285
1930	97
1931	723
1932	219
1933	729
1934	119
1935	536
1936	274
1937	301
1938	248
1939	143
1940	436
1941	850
1942	812
1943	237
1944	624
1945	700
1946	264
1947	445
1948	378
1949	1,063
1950	428
1951	536
1952	447
1953	350
1954	510
1955	1,041
1956	878
1957	425
1958	544
1959	274
1960	1,353
1961	215
1962	521
1963	1,305
1964	1,184
1965	343
1966	279
1967	1,252
1968	1,478
1969	917
1970	984
1971	621
1972	719
1973	1,055
1974	498
1975	647
1976	605
1977	493
1978	363
1979	731
1980	580
1981	1,099
1982	637
1983	4,061
1984	794
1985	867
1986	523
1987	815
1988	699
1989	4,643
1990	3,228
1991	1,034
1992	522
1993	1,087
1994	920
1995	1,130
1996	939
1997	866
1998	1,106
1999	939
2000	925
2001	491
2002	652
2003	1,046
2004	899
2005	880
2006	1,390
2007	1,478
2008	1,000
2009	992
2010	1,632
2011	779
2012	837
2013	1,867
2014	915
2015	1,562
2016	550
2017	488
2018	514
2019	763
2020	948
2021	293
2022	1,047
2023	893
2024	477
2025	1,417

Download the Data

Data for records on 1999-12-22: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 50	726
50 to 100	15
100 to 150	6
150 to 200	4
200 to 250	0
250 to 300	1
300 to 350	0
350 to 400	1