Weather Records on 30 December 1999

838 weather records were set or tied worldwide on 30 December 1999. Highest significance: Quairading, AU.

Key Facts for 30 December 1999

On 30 December 1999, 838 weather records were set or tied at long-record stations worldwide.
513 were record highs and 126 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 18 monthly and 819 daily.
Quairading set a monthly record daily precipitation of 74.5 mm (2.9 in) on 30 December 1999.
Across 154 earlier years (1799 to 2025) the same calendar date averaged 494 records.

Record Map

838 stations

838 station records on 30 December 1999 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 December 1999: highest significance records shown on the map
Station	Country	Type	Value	Significance
Quairading	Australia	Record daily precipitation	74.5 mm (2.9 in)	72 of 100 (Major)
South Holmwood	Australia	Record daily precipitation	25.8 mm (1.0 in)	70 of 100 (Major)
Bungulla North	Australia	Record daily precipitation	60.4 mm (2.4 in)	70 of 100 (Major)
Quondong	Australia	Record daily precipitation	42.0 mm (1.7 in)	70 of 100 (Major)
Bungulla	Australia	Record daily precipitation	47.0 mm (1.9 in)	68 of 100 (Major)
Kellerberrin	Australia	Record daily precipitation	50.4 mm (2.0 in)	67 of 100 (Major)
Meckering	Australia	Record daily precipitation	29.0 mm (1.1 in)	62 of 100 (Major)
Quellington	Australia	Record daily precipitation	38.0 mm (1.5 in)	61 of 100 (Major)
Tammin	Australia	Record daily precipitation	64.0 mm (2.5 in)	61 of 100 (Major)
Jaroma	Australia	Record daily precipitation	49.0 mm (1.9 in)	59 of 100 (Notable)
Inhambupe	Brazil	Record daily precipitation	65.7 mm (2.6 in)	56 of 100 (Notable)
Moora	Australia	Record daily precipitation	35.6 mm (1.4 in)	54 of 100 (Notable)
Doodenanning	Australia	Record daily precipitation	47.8 mm (1.9 in)	54 of 100 (Notable)
Cuttening	Australia	Record daily precipitation	36.4 mm (1.4 in)	53 of 100 (Notable)
Pingelly	Australia	Record daily precipitation	61.0 mm (2.4 in)	53 of 100 (Notable)
Ardath	Australia	Record daily precipitation	27.0 mm (1.1 in)	52 of 100 (Notable)
Glenferrie	Australia	Record daily precipitation	29.4 mm (1.2 in)	50 of 100 (Notable)
Forman 5 SSE	United States	Record high maximum temperature	14.4 C (57.9 F)	50 of 100 (Notable)
Morris W Cntrl Rsch & Outreach	United States	Record high maximum temperature	13.9 C (57.0 F)	49 of 100 (Notable)
Spring Valley	Australia	Record daily precipitation	41.0 mm (1.6 in)	48 of 100 (Notable)
Juvenilia (Pcd)	Brazil	Record daily precipitation	133.3 mm (5.2 in)	48 of 100 (Notable)
Paulo Afonso	Brazil	Record daily precipitation	64.0 mm (2.5 in)	46 of 100 (Notable)
Washburn	United States	Record high maximum temperature	12.2 C (54.0 F)	46 of 100 (Notable)
Miling	Australia	Record daily precipitation	30.6 mm (1.2 in)	45 of 100 (Notable)
Telenning Hill	Australia	Record daily precipitation	27.6 mm (1.1 in)	45 of 100 (Notable)
Bowraville Recreation Club	Australia	Record daily precipitation	36.0 mm (1.4 in)	45 of 100 (Notable)
Fairbury 7S	United States	Record high maximum temperature	21.1 C (70.0 F)	45 of 100 (Notable)
Fairfields	Australia	Record daily precipitation	79.0 mm (3.1 in)	44 of 100 (Notable)
Montevideo 1SW	United States	Record high maximum temperature	16.1 C (61.0 F)	44 of 100 (Notable)
Lexington 3E	United States	Record high maximum temperature	19.4 C (66.9 F)	44 of 100 (Notable)
New Norcia	Australia	Record daily precipitation	30.9 mm (1.2 in)	43 of 100 (Notable)
Doongin Peak	Australia	Record daily precipitation	50.4 mm (2.0 in)	43 of 100 (Notable)
Fergus Falls	United States	Record high maximum temperature	9.4 C (48.9 F)	43 of 100 (Notable)
Larimore 4SW	United States	Record high maximum temperature	8.9 C (48.0 F)	43 of 100 (Notable)
Breakell	Australia	Record daily precipitation	27.0 mm (1.1 in)	42 of 100 (Notable)
Pirlangimpi	Australia	Record daily precipitation	171.6 mm (6.8 in)	42 of 100 (Notable)
Crookston NW Exp STN	United States	Record high maximum temperature	7.2 C (45.0 F)	42 of 100 (Notable)
Bottineau	United States	Record high maximum temperature	8.3 C (46.9 F)	42 of 100 (Notable)
Clark	United States	Record high maximum temperature	12.2 C (54.0 F)	42 of 100 (Notable)
Hayward Rs	United States	Record high maximum temperature	8.3 C (46.9 F)	42 of 100 (Notable)
Solon Springs	United States	Record high maximum temperature	8.3 C (46.9 F)	42 of 100 (Notable)
Mora	United States	Record high maximum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Sandy Lake Dam Libby	United States	Record high maximum temperature	8.9 C (48.0 F)	41 of 100 (Notable)
Conception	United States	Record high maximum temperature	16.7 C (62.1 F)	41 of 100 (Notable)
Kellerberrin South	Australia	Record daily precipitation	31.4 mm (1.2 in)	40 of 100 (Notable)
Alton 1 W	United States	Record high maximum temperature	22.2 C (72.0 F)	40 of 100 (Notable)
Mohall	United States	Record high maximum temperature	9.4 C (48.9 F)	40 of 100 (Notable)
Willow City	United States	Record high maximum temperature	8.3 C (46.9 F)	40 of 100 (Notable)
Milbank 4 NW	United States	Record high maximum temperature	15.6 C (60.1 F)	40 of 100 (Notable)
Cunderdin	Australia	Record daily precipitation	29.6 mm (1.2 in)	39 of 100 (Notable)
Hanford 1 S	United States	Record high maximum temperature	21.7 C (71.1 F)	39 of 100 (Notable)
Hartington	United States	Record high maximum temperature	15.6 C (60.1 F)	39 of 100 (Notable)
Oakdale	United States	Record high maximum temperature	18.3 C (64.9 F)	39 of 100 (Notable)
Castlewood	United States	Record high maximum temperature	12.2 C (54.0 F)	39 of 100 (Notable)
Faulkton	United States	Record high maximum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Walgoolan North	Australia	Record daily precipitation	25.0 mm (1.0 in)	38 of 100 (Notable)
Tenosique (Smn)	Mexico	Record low maximum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Wadena 3 S	United States	Record high maximum temperature	8.3 C (46.9 F)	38 of 100 (Notable)
Stanton	United States	Record high maximum temperature	17.8 C (64.0 F)	38 of 100 (Notable)
Sharon	United States	Record high maximum temperature	12.2 C (54.0 F)	38 of 100 (Notable)

Counts by Type and Timescale

838 records

Records set or tied on 30 December 1999 by type: Highest daily maximum 443, Lowest daily maximum 43, Highest daily minimum 70, Lowest daily minimum 83, Heaviest daily rainfall 187, Heaviest daily snowfall 5, Deepest snow cover 7.

Records on 30 December 1999 by type
Record type	Records
Highest daily maximum	443
Lowest daily maximum	43
Highest daily minimum	70
Lowest daily minimum	83
Heaviest daily rainfall	187
Heaviest daily snowfall	5
Deepest snow cover	7

Records on 30 December 1999 by timescale: all-time 1, monthly 18, daily 819.

How Much Records Were Beaten By

672 broken records

Margins by which the 672 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 109.0. Ties are not counted.

Top 20 by Significance

30 December 1999

Top 20 records on 30 December 1999 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 1999	Quairading, AU	monthly rain	74.5 mm (2.9 in)	40.5 mm (1.6 in)	47 years	72 of 100 (Major)
30 December 1999	South Holmwood, AU	daily rain	25.8 mm (1.0 in)	19.4 mm (0.8 in)	77 years	70 of 100 (Major)
30 December 1999	Bungulla North, AU	daily rain	60.4 mm (2.4 in)	56.6 mm (2.2 in)	73 years	70 of 100 (Major)
30 December 1999	Quondong, AU	daily rain	42.0 mm (1.7 in)	39.0 mm (1.5 in)	73 years	70 of 100 (Major)
30 December 1999	Bungulla, AU	daily rain	47.0 mm (1.9 in)	46.7 mm (1.8 in)	70 years	68 of 100 (Major)
30 December 1999	Kellerberrin, AU	daily rain	50.4 mm (2.0 in)	27.8 mm (1.1 in)	86 years	67 of 100 (Major)
30 December 1999	Meckering, AU	daily rain	29.0 mm (1.1 in)	26.7 mm (1.1 in)	73 years	62 of 100 (Major)
30 December 1999	Quellington, AU	daily rain	38.0 mm (1.5 in)	22.3 mm (0.9 in)	84 years	61 of 100 (Major)
30 December 1999	Tammin, AU	monthly rain	64.0 mm (2.5 in)	22.9 mm (0.9 in)	47 years	61 of 100 (Major)
30 December 1999	Jaroma, AU	monthly rain	49.0 mm (1.9 in)	27.6 mm (1.1 in)	8 years	59 of 100 (Notable)
30 December 1999	Inhambupe, BR	daily rain	65.7 mm (2.6 in)	62.5 mm (2.5 in)	37 years	56 of 100 (Notable)
30 December 1999	Moora, AU	daily rain	35.6 mm (1.4 in)	28.0 mm (1.1 in)	16 years	54 of 100 (Notable)
30 December 1999	Doodenanning, AU	daily rain	47.8 mm (1.9 in)	37.2 mm (1.5 in)	16 years	54 of 100 (Notable)
30 December 1999	Cuttening, AU	daily rain	36.4 mm (1.4 in)	18.1 mm (0.7 in)	86 years	53 of 100 (Notable)
30 December 1999	Pingelly, AU	monthly rain	61.0 mm (2.4 in)	5.1 mm (0.20 in)	86 years	53 of 100 (Notable)
30 December 1999	Ardath, AU	daily rain	27.0 mm (1.1 in)	24.2 mm (1.0 in)	64 years	52 of 100 (Notable)
30 December 1999	Glenferrie, AU	daily rain	29.4 mm (1.2 in)	18.0 mm (0.7 in)	60 years	50 of 100 (Notable)
30 December 1999	Forman 5 SSE, US	daily high max	14.4 C (57.9 F)	7.7 C (13.9 F)	101 years	50 of 100 (Notable)
30 December 1999	Morris W Cntrl Rsch & Outreach, US	daily high max	13.9 C (57.0 F)	6.7 C (12.1 F)	108 years	49 of 100 (Notable)
30 December 1999	Spring Valley, AU	daily rain	41.0 mm (1.6 in)	38.0 mm (1.5 in)	16 years	48 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

1799 to 1999

Records set or tied on this calendar date in each year from 1799 to 1999. 1999 had 838 records.

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

Records on 12-30 in each year
Year	Records
1799	2
1835	1
1850	1
1853	1
1856	1
1859	1
1863	1
1868	1
1870	4
1872	3
1874	2
1875	2
1876	3
1878	1
1880	5
1881	3
1882	3
1884	2
1888	2
1889	2
1890	7
1891	1
1892	1
1893	3
1895	6
1896	3
1897	7
1898	6
1899	3
1900	5
1901	8
1902	2
1903	8
1904	12
1905	10
1906	11
1907	26
1908	17
1909	13
1910	18
1911	20
1912	37
1913	32
1914	47
1915	62
1916	45
1917	217
1918	25
1919	82
1920	84
1921	111
1922	227
1923	223
1924	65
1925	184
1926	63
1927	290
1928	31
1929	382
1930	71
1931	509
1932	407
1933	279
1934	206
1935	202
1936	931
1937	234
1938	208
1939	237
1940	397
1941	149
1942	584
1943	165
1944	137
1945	251
1946	584
1947	317
1948	760
1949	206
1950	479
1951	955
1952	334
1953	399
1954	538
1955	254
1956	556
1957	443
1958	525
1959	216
1960	345
1961	389
1962	671
1963	567
1964	537
1965	1,122
1966	403
1967	760
1968	1,391
1969	817
1970	571
1971	1,122
1972	1,052
1973	1,262
1974	564
1975	703
1976	981
1977	795
1978	1,930
1979	427
1980	1,560
1981	684
1982	630
1983	2,765
1984	1,834
1985	568
1986	852
1987	1,270
1988	755
1989	528
1990	3,065
1991	525
1992	1,210
1993	865
1994	642
1995	1,455
1996	1,620
1997	1,384
1998	801
1999	838
2000	1,377
2001	651
2002	1,034
2003	661
2004	974
2005	928
2006	1,779
2007	748
2008	653
2009	933
2010	1,200
2011	782
2012	676
2013	642
2014	660
2015	820
2016	706
2017	1,324
2018	284
2019	1,131
2020	604
2021	1,455
2022	909
2023	726
2024	638
2025	325

Download the Data

Data for records on 1999-12-30: 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 20	635
20 to 40	26
40 to 60	6
60 to 80	1
80 to 100	1
100 to 120	3