Weather Records on 6 December 1999

1,079 weather records were set or tied worldwide on 6 December 1999. Highest significance: Groningen-1, NL.

Key Facts for 6 December 1999

On 6 December 1999, 1,079 weather records were set or tied at long-record stations worldwide.
197 were record highs and 393 were record lows, counting maximum and minimum temperature.
By timescale, 4 were all-time records, 53 monthly and 1,022 daily.
Groningen-1 set a daily record precipitation of 30.1 mm (1.2 in) on 6 December 1999.
Across 164 earlier years (1804 to 2025) the same calendar date averaged 480 records.

Record Map

1,079 stations

1,079 station records on 6 December 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 6 December 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Groningen-1	Netherlands	Record daily precipitation	30.1 mm (1.2 in)	67 of 100 (Major)
Koylio Yttila	Finland	Record daily precipitation	34.0 mm (1.3 in)	56 of 100 (Notable)
Uithuizen	Netherlands	Record daily precipitation	28.9 mm (1.1 in)	56 of 100 (Notable)
Borkum-Suderstrasse	Germany	Record daily precipitation	28.1 mm (1.1 in)	55 of 100 (Notable)
Centralia	United States	Record daily precipitation	44.5 mm (1.8 in)	55 of 100 (Notable)
Zoutkamp	Netherlands	Record daily precipitation	32.0 mm (1.3 in)	53 of 100 (Notable)
Nes (Ameland)	Netherlands	Record daily precipitation	30.2 mm (1.2 in)	51 of 100 (Notable)
Kihnu	Estonia	Record daily precipitation	29.5 mm (1.2 in)	50 of 100 (Notable)
Huetamo	Mexico	Record low maximum temperature	23.9 C (75.0 F)	50 of 100 (Notable)
Nieuw Buinen	Netherlands	Record daily precipitation	28.2 mm (1.1 in)	50 of 100 (Notable)
Rauma Ayho	Finland	Record daily precipitation	36.2 mm (1.4 in)	49 of 100 (Notable)
Roodeschool	Netherlands	Record daily precipitation	26.0 mm (1.0 in)	49 of 100 (Notable)
Aurland	Norway	Record daily precipitation	32.8 mm (1.3 in)	49 of 100 (Notable)
Aurich	Germany	Record daily precipitation	27.8 mm (1.1 in)	48 of 100 (Notable)
Canadian	United States	Record daily precipitation	35.8 mm (1.4 in)	48 of 100 (Notable)
Schoonloo	Netherlands	Record daily precipitation	31.3 mm (1.2 in)	47 of 100 (Notable)
Gabes	Tunisia	Record low minimum temperature	-2.2 C (28.0 F)	46 of 100 (Notable)
Island Park	United States	Record daily snowfall	43.2 cm (17.0 in)	46 of 100 (Notable)
Jever	Germany	Record daily precipitation	25.7 mm (1.0 in)	45 of 100 (Notable)
Zeerijp	Netherlands	Record daily precipitation	27.4 mm (1.1 in)	45 of 100 (Notable)
Eenrum	Netherlands	Record daily precipitation	28.4 mm (1.1 in)	45 of 100 (Notable)
Winschoten	Netherlands	Record daily precipitation	30.3 mm (1.2 in)	45 of 100 (Notable)
Ionia 2SSW	United States	Record daily precipitation	36.1 mm (1.4 in)	45 of 100 (Notable)
Vlagtwedde	Netherlands	Record daily precipitation	27.2 mm (1.1 in)	44 of 100 (Notable)
Kollum	Netherlands	Record daily precipitation	27.2 mm (1.1 in)	44 of 100 (Notable)
Lysebotn	Norway	Record daily precipitation	71.8 mm (2.8 in)	44 of 100 (Notable)
Auburn	United States	Record snow depth	12.7 cm (5.0 in)	44 of 100 (Notable)
Uusikaupunki Nervanderinpuisto	Finland	Record daily precipitation	34.0 mm (1.3 in)	43 of 100 (Notable)
Huittinen Sallila	Finland	Record daily precipitation	30.5 mm (1.2 in)	43 of 100 (Notable)
Warffum	Netherlands	Record daily precipitation	27.6 mm (1.1 in)	43 of 100 (Notable)
Grebbeshult	Sweden	Record daily precipitation	37.1 mm (1.5 in)	43 of 100 (Notable)
Hattula Leteensuo	Finland	Record daily precipitation	25.6 mm (1.0 in)	42 of 100 (Notable)
Friesoythe-Edewechterdam	Germany	Record daily precipitation	28.7 mm (1.1 in)	42 of 100 (Notable)
Hafslo	Norway	Record daily precipitation	36.8 mm (1.4 in)	42 of 100 (Notable)
Wapello	United States	Record daily snowfall	12.7 cm (5.0 in)	42 of 100 (Notable)
Atchison	United States	Record snow depth	20.3 cm (8.0 in)	42 of 100 (Notable)
Bremerhaven	Germany	Record daily precipitation	27.8 mm (1.1 in)	41 of 100 (Notable)
La Union	Mexico	Record low minimum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Klazienaveen	Netherlands	Record daily precipitation	25.5 mm (1.0 in)	41 of 100 (Notable)
Veendam	Netherlands	Record daily precipitation	27.2 mm (1.1 in)	41 of 100 (Notable)
Sauda	Norway	Record daily precipitation	61.1 mm (2.4 in)	41 of 100 (Notable)
Wichita	United States	Record snow depth	17.8 cm (7.0 in)	41 of 100 (Notable)
Mount Florance	Australia	Record daily precipitation	43.0 mm (1.7 in)	40 of 100 (Notable)
Sydney (Observatory Hill)	Australia	Record high minimum temperature	20.4 C (68.7 F)	40 of 100 (Notable)
Cuxhaven	Germany	Record daily precipitation	25.5 mm (1.0 in)	40 of 100 (Notable)
Dorpen	Germany	Record daily precipitation	27.3 mm (1.1 in)	40 of 100 (Notable)
Roden	Netherlands	Record daily precipitation	25.7 mm (1.0 in)	40 of 100 (Notable)
Gieterveen	Netherlands	Record daily precipitation	27.4 mm (1.1 in)	40 of 100 (Notable)
Los Pinzanes (Cfe)	Mexico	Record low minimum temperature	10.0 C (50.0 F)	39 of 100 (Notable)
Delfzijl	Netherlands	Record daily precipitation	26.6 mm (1.0 in)	39 of 100 (Notable)
Opstveit	Norway	Record daily precipitation	129.3 mm (5.1 in)	39 of 100 (Notable)
Norwich	United States	Record snow depth	17.8 cm (7.0 in)	39 of 100 (Notable)
Philippi	United States	Record high maximum temperature	19.4 C (66.9 F)	39 of 100 (Notable)
Huetamo	Mexico	Record low minimum temperature	8.9 C (48.0 F)	38 of 100 (Notable)
Zweelo	Netherlands	Record daily precipitation	25.3 mm (1.0 in)	38 of 100 (Notable)
Emmen	Netherlands	Record daily precipitation	25.7 mm (1.0 in)	38 of 100 (Notable)
Malham Tarn	United Kingdom	Record daily precipitation	38.9 mm (1.5 in)	38 of 100 (Notable)
Kokemaki Peipohja Hyrkola	Finland	Record daily precipitation	25.8 mm (1.0 in)	37 of 100 (Notable)
Niekerk	Netherlands	Record daily precipitation	25.5 mm (1.0 in)	37 of 100 (Notable)
Skogsforsen	Sweden	Record daily precipitation	40.0 mm (1.6 in)	37 of 100 (Notable)

Counts by Type and Timescale

1,079 records

Records set or tied on 6 December 1999 by type: Highest daily maximum 98, Lowest daily maximum 64, Highest daily minimum 99, Lowest daily minimum 329, Heaviest daily rainfall 444, Heaviest daily snowfall 10, Deepest snow cover 35.

Records on 6 December 1999 by type
Record type	Records
Highest daily maximum	98
Lowest daily maximum	64
Highest daily minimum	99
Lowest daily minimum	329
Heaviest daily rainfall	444
Heaviest daily snowfall	10
Deepest snow cover	35

Records on 6 December 1999 by timescale: all-time 4, monthly 53, daily 1,022.

How Much Records Were Beaten By

893 broken records

Margins by which the 893 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 280.0. Ties are not counted.

Top 20 by Significance

6 December 1999

Top 20 records on 6 December 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
6 December 1999	Groningen-1, NL	daily rain	30.1 mm (1.2 in)	11.4 mm (0.4 in)	112 years	67 of 100 (Major)
6 December 1999	Koylio Yttila, FI	monthly rain	34.0 mm (1.3 in)	15.2 mm (0.6 in)	13 years	56 of 100 (Notable)
6 December 1999	Uithuizen, NL	daily rain	28.9 mm (1.1 in)	17.9 mm (0.7 in)	44 years	56 of 100 (Notable)
6 December 1999	Borkum-Suderstrasse, DE	daily rain	28.1 mm (1.1 in)	16.5 mm (0.6 in)	37 years	55 of 100 (Notable)
6 December 1999	Centralia, US	daily rain	44.5 mm (1.8 in)	30.5 mm (1.2 in)	56 years	55 of 100 (Notable)
6 December 1999	Zoutkamp, NL	daily rain	32.0 mm (1.3 in)	22.4 mm (0.9 in)	28 years	53 of 100 (Notable)
6 December 1999	Nes (Ameland), NL	daily rain	30.2 mm (1.2 in)	18.2 mm (0.7 in)	32 years	51 of 100 (Notable)
6 December 1999	Kihnu, EE	daily rain	29.5 mm (1.2 in)	17.6 mm (0.7 in)	14 years	50 of 100 (Notable)
6 December 1999	Huetamo, MX	daily low max	23.9 C (75.0 F)	6.1 C (11.0 F)	76 years	50 of 100 (Notable)
6 December 1999	Nieuw Buinen, NL	daily rain	28.2 mm (1.1 in)	19.4 mm (0.8 in)	22 years	50 of 100 (Notable)
6 December 1999	Rauma Ayho, FI	monthly rain	36.2 mm (1.4 in)	10.6 mm (0.4 in)	32 years	49 of 100 (Notable)
6 December 1999	Roodeschool, NL	daily rain	26.0 mm (1.0 in)	13.9 mm (0.5 in)	44 years	49 of 100 (Notable)
6 December 1999	Aurland, NO	daily rain	32.8 mm (1.3 in)	23.8 mm (0.9 in)	34 years	49 of 100 (Notable)
6 December 1999	Aurich, DE	daily rain	27.8 mm (1.1 in)	11.7 mm (0.5 in)	57 years	48 of 100 (Notable)
6 December 1999	Canadian, US	daily rain	35.8 mm (1.4 in)	12.7 mm (0.5 in)	78 years	48 of 100 (Notable)
6 December 1999	Schoonloo, NL	daily rain	31.3 mm (1.2 in)	18.6 mm (0.7 in)	22 years	47 of 100 (Notable)
6 December 1999	Gabes, TN	monthly low min	-2.2 C (28.0 F)	1.2 C (2.2 F)	73 years	46 of 100 (Notable)
6 December 1999	Island Park, US	daily snowfall	43.2 cm (17.0 in)	28.0 cm (11.0 in)	16 years	46 of 100 (Notable)
6 December 1999	Jever, DE	daily rain	25.7 mm (1.0 in)	9.7 mm (0.38 in)	58 years	45 of 100 (Notable)
6 December 1999	Zeerijp, NL	daily rain	27.4 mm (1.1 in)	18.5 mm (0.7 in)	1 year	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

1804 to 1999

Records set or tied on this calendar date in each year from 1804 to 1999. 1999 had 1,079 records.

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

Records on 12-06 in each year
Year	Records
1804	1
1822	1
1825	1
1827	1
1829	2
1832	1
1836	1
1839	1
1840	1
1841	1
1842	1
1844	2
1848	1
1856	2
1859	1
1860	2
1861	1
1862	1
1865	1
1866	1
1868	7
1871	1
1872	1
1875	3
1876	1
1879	5
1880	1
1884	2
1886	3
1888	2
1889	1
1890	1
1891	8
1893	2
1895	3
1896	2
1897	1
1898	4
1899	7
1900	6
1901	5
1902	19
1903	7
1904	13
1905	4
1906	23
1907	10
1908	18
1909	26
1910	35
1911	9
1912	109
1913	14
1914	11
1915	63
1916	25
1917	22
1918	34
1919	30
1920	259
1921	20
1922	150
1923	145
1924	159
1925	189
1926	308
1927	107
1928	98
1929	92
1930	481
1931	178
1932	363
1933	346
1934	185
1935	283
1936	524
1937	958
1938	267
1939	918
1940	264
1941	231
1942	509
1943	378
1944	203
1945	241
1946	657
1947	178
1948	396
1949	137
1950	1,419
1951	1,591
1952	229
1953	533
1954	455
1955	345
1956	1,633
1957	362
1958	640
1959	379
1960	707
1961	197
1962	916
1963	391
1964	597
1965	420
1966	1,013
1967	310
1968	356
1969	810
1970	558
1971	545
1972	2,565
1973	482
1974	549
1975	637
1976	643
1977	1,480
1978	969
1979	809
1980	1,108
1981	937
1982	1,277
1983	1,232
1984	1,245
1985	1,087
1986	695
1987	978
1988	660
1989	798
1990	800
1991	743
1992	1,622
1993	485
1994	1,467
1995	1,456
1996	1,093
1997	953
1998	2,750
1999	1,079
2000	1,230
2001	1,520
2002	1,576
2003	1,303
2004	699
2005	1,233
2006	1,097
2007	1,538
2008	913
2009	866
2010	1,364
2011	1,327
2012	848
2013	2,182
2014	615
2015	768
2016	575
2017	402
2018	469
2019	374
2020	549
2021	676
2022	432
2023	1,271
2024	620
2025	640

Download the Data

Data for records on 1999-12-06: 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	871
50 to 100	16
100 to 150	4
150 to 200	0
200 to 250	0
250 to 300	2