Weather Records on 30 December 1979

427 weather records were set or tied worldwide on 30 December 1979. Highest significance: Iron Knob (Gilles Downs), AU.

Key Facts for 30 December 1979

On 30 December 1979, 427 weather records were set or tied at long-record stations worldwide.
154 were record highs and 37 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 11 monthly and 415 daily.
Iron Knob (Gilles Downs) set a monthly record daily precipitation of 59.2 mm (2.3 in) on 30 December 1979.
Across 154 earlier years (1799 to 2025) the same calendar date averaged 496 records.

Record Map

427 stations

427 station records on 30 December 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 30 December 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Iron Knob (Gilles Downs)	Australia	Record daily precipitation	59.2 mm (2.3 in)	66 of 100 (Major)
Wyndham Port	Australia	Record daily precipitation	85.0 mm (3.3 in)	59 of 100 (Notable)
Maitland	Australia	Record daily precipitation	56.0 mm (2.2 in)	57 of 100 (Notable)
Cheyenne Wells 2NE	United States	Record snow depth	20.3 cm (8.0 in)	57 of 100 (Notable)
Ft Collins	United States	Record snow depth	30.5 cm (12.0 in)	56 of 100 (Notable)
Port Victoria	Australia	Record daily precipitation	25.0 mm (1.0 in)	53 of 100 (Notable)
Cheyenne	United States	Record snow depth	30.5 cm (12.0 in)	51 of 100 (Notable)
Bookaloo	Australia	Record daily precipitation	26.0 mm (1.0 in)	50 of 100 (Notable)
Minaru	Australia	Record daily precipitation	27.6 mm (1.1 in)	48 of 100 (Notable)
Port Clinton (Yararoo)	Australia	Record daily precipitation	32.0 mm (1.3 in)	46 of 100 (Notable)
Stonington	United States	Record snow depth	22.9 cm (9.0 in)	46 of 100 (Notable)
Coober Pedy	Australia	Record daily precipitation	29.4 mm (1.2 in)	45 of 100 (Notable)
Holly	United States	Record snow depth	15.2 cm (6.0 in)	45 of 100 (Notable)
Whyalla (Norrie)	Australia	Record daily precipitation	40.6 mm (1.6 in)	44 of 100 (Notable)
Batatais	Brazil	Record daily precipitation	123.4 mm (4.9 in)	44 of 100 (Notable)
Bellingham Intl AP	United States	Record daily precipitation	66.0 mm (2.6 in)	44 of 100 (Notable)
Goondi Mill Csr	Australia	Record daily precipitation	177.6 mm (7.0 in)	42 of 100 (Notable)
Morpara	Brazil	Record daily precipitation	147.0 mm (5.8 in)	42 of 100 (Notable)
Roopena	Australia	Record daily precipitation	37.0 mm (1.5 in)	38 of 100 (Notable)
Bilbao Aeropuerto	Spain	Record daily precipitation	56.8 mm (2.2 in)	38 of 100 (Notable)
Morpara	Brazil	Record daily precipitation	73.0 mm (2.9 in)	37 of 100 (Notable)
Cleve (Pineview)	Australia	Record daily precipitation	27.4 mm (1.1 in)	36 of 100 (Notable)
Maitland (Weetulta)	Australia	Record daily precipitation	59.0 mm (2.3 in)	36 of 100 (Notable)
Carlisle	United States	Record high maximum temperature	14.4 C (57.9 F)	36 of 100 (Notable)
Kokatha	Australia	Record daily precipitation	39.0 mm (1.5 in)	34 of 100 (Routine)
Ouro Branco (Manairama)	Brazil	Record daily precipitation	34.0 mm (1.3 in)	32 of 100 (Routine)
Flagler 1S	United States	Record snow depth	20.3 cm (8.0 in)	32 of 100 (Routine)
Ladysmith 3W	United States	Record high maximum temperature	5.6 C (42.1 F)	32 of 100 (Routine)
Bemerside	Australia	Record daily precipitation	182.0 mm (7.2 in)	31 of 100 (Routine)
Glenlyon Station	Australia	Record daily precipitation	72.0 mm (2.8 in)	31 of 100 (Routine)
Bayfield 6 N	United States	Record high maximum temperature	6.7 C (44.1 F)	31 of 100 (Routine)
Sheboygan	United States	Record high maximum temperature	7.2 C (45.0 F)	31 of 100 (Routine)
Woomera Aerodrome	Australia	Record daily precipitation	26.2 mm (1.0 in)	30 of 100 (Routine)
Santander Centro	Spain	Record daily precipitation	52.0 mm (2.0 in)	30 of 100 (Routine)
Lakeport	United States	Record daily precipitation	42.2 mm (1.7 in)	30 of 100 (Routine)
Willows 6 W	United States	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Lucinda Township	Australia	Record daily precipitation	197.6 mm (7.8 in)	29 of 100 (Routine)
Fowler 1 SE	United States	Record snow depth	22.9 cm (9.0 in)	29 of 100 (Routine)
Ironwood	United States	Record high maximum temperature	6.1 C (43.0 F)	29 of 100 (Routine)
Grand Marais	United States	Record high maximum temperature	6.1 C (43.0 F)	29 of 100 (Routine)
Moxee City 10 E	United States	Record daily snowfall	7.6 cm (3.0 in)	28 of 100 (Routine)
Kirrama Station	Australia	Record daily precipitation	42.2 mm (1.7 in)	27 of 100 (Routine)
Buenos Aires Observ	Argentina	Record low maximum temperature	21.0 C (69.8 F)	26 of 100 (Routine)
Hat Creek	United States	Record snow depth	40.6 cm (16.0 in)	26 of 100 (Routine)
Maracas	Brazil	Record daily precipitation	37.6 mm (1.5 in)	25 of 100 (Routine)
Sao Felix	Brazil	Record daily precipitation	53.0 mm (2.1 in)	25 of 100 (Routine)
Sebeni (Bos)	South Africa	Record daily precipitation	41.5 mm (1.6 in)	24 of 100 (Routine)
Burney	United States	Record snow depth	68.6 cm (27.0 in)	24 of 100 (Routine)
East Park Rsvr	United States	Record daily precipitation	32.5 mm (1.3 in)	24 of 100 (Routine)
Lamar	United States	Record snow depth	15.2 cm (6.0 in)	24 of 100 (Routine)
Holtwood	United States	Record high maximum temperature	11.7 C (53.1 F)	24 of 100 (Routine)
La Junta Muni AP	United States	Record snow depth	17.8 cm (7.0 in)	24 of 100 (Routine)
Monte Alegre de Minas	Brazil	Record daily precipitation	93.8 mm (3.7 in)	23 of 100 (Routine)
Santa Clara Do Ingai	Brazil	Record daily precipitation	52.4 mm (2.1 in)	23 of 100 (Routine)
Girua	Brazil	Record daily precipitation	30.5 mm (1.2 in)	23 of 100 (Routine)
Paramirim	Brazil	Record daily precipitation	32.4 mm (1.3 in)	23 of 100 (Routine)
Norwood	United States	Record low minimum temperature	-24.4 C (-11.9 F)	23 of 100 (Routine)
Watersmeet	United States	Record high maximum temperature	5.0 C (41.0 F)	23 of 100 (Routine)
Colorado Springs Muni AP	United States	Record snow depth	15.2 cm (6.0 in)	23 of 100 (Routine)
Aragac Visokogornaya	Armenia	Record low minimum temperature	-27.0 C (-16.6 F)	22 of 100 (Routine)

Counts by Type and Timescale

427 records

Records set or tied on 30 December 1979 by type: Highest daily maximum 94, Lowest daily maximum 20, Highest daily minimum 60, Lowest daily minimum 17, Heaviest daily rainfall 196, Heaviest daily snowfall 11, Deepest snow cover 29.

Records on 30 December 1979 by type
Record type	Records
Highest daily maximum	94
Lowest daily maximum	20
Highest daily minimum	60
Lowest daily minimum	17
Heaviest daily rainfall	196
Heaviest daily snowfall	11
Deepest snow cover	29

Records on 30 December 1979 by timescale: all-time 1, monthly 11, daily 415.

How Much Records Were Beaten By

356 broken records

Margins by which the 356 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 229.0. Ties are not counted.

Top 20 by Significance

30 December 1979

Top 20 records on 30 December 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
30 December 1979	Iron Knob (Gilles Downs), AU	monthly rain	59.2 mm (2.3 in)	30.8 mm (1.2 in)	37 years	66 of 100 (Major)
30 December 1979	Wyndham Port, AU	daily rain	85.0 mm (3.3 in)	53.2 mm (2.1 in)	52 years	59 of 100 (Notable)
30 December 1979	Maitland, AU	daily rain	56.0 mm (2.2 in)	49.6 mm (2.0 in)	25 years	57 of 100 (Notable)
30 December 1979	Cheyenne Wells 2NE, US	daily snow depth	20.3 cm (8.0 in)	20.3 cm (8.0 in)	30 years	57 of 100 (Notable)
30 December 1979	Ft Collins, US	daily snow depth	30.5 cm (12.0 in)	20.3 cm (8.0 in)	28 years	56 of 100 (Notable)
30 December 1979	Port Victoria, AU	daily rain	25.0 mm (1.0 in)	19.9 mm (0.8 in)	61 years	53 of 100 (Notable)
30 December 1979	Cheyenne, US	daily snow depth	30.5 cm (12.0 in)	17.8 cm (7.0 in)	30 years	51 of 100 (Notable)
30 December 1979	Bookaloo, AU	daily rain	26.0 mm (1.0 in)	23.0 mm (0.9 in)	45 years	50 of 100 (Notable)
30 December 1979	Minaru, AU	daily rain	27.6 mm (1.1 in)	27.6 mm (1.1 in)	46 years	48 of 100 (Notable)
30 December 1979	Port Clinton (Yararoo), AU	daily rain	32.0 mm (1.3 in)	20.6 mm (0.8 in)	25 years	46 of 100 (Notable)
30 December 1979	Stonington, US	daily snow depth	22.9 cm (9.0 in)	20.4 cm (8.0 in)	10 years	46 of 100 (Notable)
30 December 1979	Coober Pedy, AU	monthly rain	29.4 mm (1.2 in)	8.8 mm (0.35 in)	49 years	45 of 100 (Notable)
30 December 1979	Holly, US	daily snow depth	15.2 cm (6.0 in)	7.6 cm (3.0 in)	68 years	45 of 100 (Notable)
30 December 1979	Whyalla (Norrie), AU	daily rain	40.6 mm (1.6 in)	27.4 mm (1.1 in)	25 years	44 of 100 (Notable)
30 December 1979	Batatais, BR	daily rain	123.4 mm (4.9 in)	92.5 mm (3.6 in)	5 years	44 of 100 (Notable)
30 December 1979	Bellingham Intl AP, US	monthly rain	66.0 mm (2.6 in)	16.7 mm (0.7 in)	30 years	44 of 100 (Notable)
30 December 1979	Goondi Mill Csr, AU	daily rain	177.6 mm (7.0 in)	55.7 mm (2.2 in)	64 years	42 of 100 (Notable)
30 December 1979	Morpara, BR	monthly rain	147.0 mm (5.8 in)	37.0 mm (1.5 in)	29 years	42 of 100 (Notable)
30 December 1979	Roopena, AU	monthly rain	37.0 mm (1.5 in)	6.5 mm (0.26 in)	37 years	38 of 100 (Notable)
30 December 1979	Bilbao Aeropuerto, ES	daily rain	56.8 mm (2.2 in)	31.6 mm (1.2 in)	24 years	38 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 1979

Records set or tied on this calendar date in each year from 1799 to 1979. 1979 had 427 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 1979-12-30: 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 50	331
50 to 100	15
100 to 150	4
150 to 200	2
200 to 250	4