Weather Records on 18 December 1930

230 weather records were set or tied worldwide on 18 December 1930. Highest significance: Algiers-Ville/Universite, DZ.

Key Facts for 18 December 1930

On 18 December 1930, 230 weather records were set or tied at long-record stations worldwide.
10 were record highs and 42 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 226 daily.
Algiers-Ville/Universite set a daily record precipitation of 45.5 mm (1.8 in) on 18 December 1930.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 481 records.

Record Map

230 stations

230 station records on 18 December 1930 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 December 1930: highest significance records shown on the map
Station	Country	Type	Value	Significance
Algiers-Ville/Universite	Algeria	Record daily precipitation	45.5 mm (1.8 in)	51 of 100 (Notable)
Bumberry	Australia	Record daily precipitation	76.2 mm (3.0 in)	49 of 100 (Notable)
Buchan	Australia	Record daily precipitation	54.9 mm (2.2 in)	41 of 100 (Notable)
Mt Airy 2 W	United States	Record snow depth	35.6 cm (14.0 in)	41 of 100 (Notable)
Bukalong Station	Australia	Record daily precipitation	56.4 mm (2.2 in)	40 of 100 (Notable)
Webster City	United States	Record snow depth	25.4 cm (10.0 in)	38 of 100 (Notable)
Dumble	Australia	Record daily precipitation	36.3 mm (1.4 in)	36 of 100 (Notable)
Cathcart (Old Post Office)	Australia	Record daily precipitation	44.5 mm (1.8 in)	33 of 100 (Routine)
Clarksville	United States	Record daily precipitation	50.8 mm (2.0 in)	31 of 100 (Routine)
Wallangarra Post Office	Australia	Record daily precipitation	56.9 mm (2.2 in)	29 of 100 (Routine)
Clarence Town (Grey St)	Australia	Record daily precipitation	91.7 mm (3.6 in)	29 of 100 (Routine)
Cunnamulla Post Office	Australia	Record daily precipitation	36.3 mm (1.4 in)	28 of 100 (Routine)
Buchan (Gillingall)	Australia	Record daily precipitation	40.4 mm (1.6 in)	28 of 100 (Routine)
Tunis	Tunisia	Record daily precipitation	40.5 mm (1.6 in)	28 of 100 (Routine)
Tarboro 1 S	United States	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Cobar (Springfield 2)	Australia	Record daily precipitation	41.9 mm (1.6 in)	25 of 100 (Routine)
Noorinbee	Australia	Record daily precipitation	31.0 mm (1.2 in)	25 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record high maximum temperature	23.2 C (73.8 F)	24 of 100 (Routine)
Salisbury	United States	Record daily snowfall	5.1 cm (2.0 in)	24 of 100 (Routine)
Peak Hill Post Office	Australia	Record daily precipitation	76.5 mm (3.0 in)	23 of 100 (Routine)
Bombala (Therry Street)	Australia	Record daily precipitation	29.7 mm (1.2 in)	23 of 100 (Routine)
Nuwara Eliya	Sri Lanka	Record low minimum temperature	1.3 C (34.3 F)	23 of 100 (Routine)
Broome Post Office	Australia	Record high minimum temperature	31.2 C (88.2 F)	22 of 100 (Routine)
Athens	United States	Record low maximum temperature	0.6 C (33.1 F)	22 of 100 (Routine)
Cobar (Double Gates)	Australia	Record daily precipitation	26.9 mm (1.1 in)	21 of 100 (Routine)
Butchers Ridge Post Office	Australia	Record daily precipitation	41.7 mm (1.6 in)	21 of 100 (Routine)
Rapid City Forrest	Canada	Record daily snowfall	5.1 cm (2.0 in)	21 of 100 (Routine)
Bathurst Gaol	Australia	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Caiwarro	Australia	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Przhevalsk	Kyrgyzstan	Record daily precipitation	7.1 mm (0.28 in)	20 of 100 (Routine)
Ledknapper Tank	Australia	Record daily precipitation	6.9 mm (0.27 in)	20 of 100 (Routine)
Rapid City Forrest	Canada	Record daily precipitation	5.1 mm (0.20 in)	20 of 100 (Routine)
Lien I Selbu	Norway	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Millie	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Gallivare_A	Sweden	Record low maximum temperature	-24.0 C (-11.2 F)	20 of 100 (Routine)
Iowa Falls	United States	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Eutawville	United States	Record low maximum temperature	0.0 C (32.0 F)	20 of 100 (Routine)
Burpengary Ulmann Rd	Australia	Record daily precipitation	41.9 mm (1.6 in)	19 of 100 (Routine)
Milton	Australia	Record daily precipitation	43.2 mm (1.7 in)	19 of 100 (Routine)
Trundle (Brookview St)	Australia	Record daily precipitation	35.1 mm (1.4 in)	19 of 100 (Routine)
Wagga Wagga (Kooringal)	Australia	Record daily precipitation	19.8 mm (0.8 in)	19 of 100 (Routine)
Wulgulmerang	Australia	Record daily precipitation	23.6 mm (0.9 in)	19 of 100 (Routine)
Collerina (Corrella)	Australia	Record daily precipitation	23.6 mm (0.9 in)	18 of 100 (Routine)
Karesuando	Sweden	Record low maximum temperature	-28.0 C (-18.4 F)	18 of 100 (Routine)
Great Falls 16St	United States	Record daily snowfall	4.6 cm (1.8 in)	18 of 100 (Routine)
Charlotte Wb City	United States	Record snow depth	17.8 cm (7.0 in)	18 of 100 (Routine)
Louisburg	United States	Record daily precipitation	30.5 mm (1.2 in)	18 of 100 (Routine)
Kingstree	United States	Record daily precipitation	31.8 mm (1.3 in)	18 of 100 (Routine)
Winnsboro	United States	Record low maximum temperature	-0.6 C (30.9 F)	18 of 100 (Routine)
Karratha Station	Australia	Record daily precipitation	4.6 mm (0.18 in)	17 of 100 (Routine)
Oxley Post Office	Australia	Record daily precipitation	38.1 mm (1.5 in)	17 of 100 (Routine)
Sandy Creek Tank	Australia	Record daily precipitation	22.9 mm (0.9 in)	17 of 100 (Routine)
Warroo (Geeron)	Australia	Record daily precipitation	12.4 mm (0.5 in)	17 of 100 (Routine)
Forbes (Camp Street)	Australia	Record daily precipitation	15.7 mm (0.6 in)	17 of 100 (Routine)
Cobbity (Roseneath)	Australia	Record daily precipitation	26.2 mm (1.0 in)	17 of 100 (Routine)
Kvikkjokk-Arrenjarka	Sweden	Record low minimum temperature	-36.6 C (-33.9 F)	17 of 100 (Routine)
Gallivare_A	Sweden	Record low minimum temperature	-32.3 C (-26.1 F)	17 of 100 (Routine)
Columbus 3 NE	United States	Record daily precipitation	2.3 mm (0.09 in)	17 of 100 (Routine)
Yemassee 1 N	United States	Record low maximum temperature	1.1 C (34.0 F)	17 of 100 (Routine)
Spring Bluff Railway STN	Australia	Record daily precipitation	29.7 mm (1.2 in)	16 of 100 (Routine)

Counts by Type and Timescale

230 records

Records set or tied on 18 December 1930 by type: Highest daily maximum 4, Lowest daily maximum 25, Highest daily minimum 6, Lowest daily minimum 17, Heaviest daily rainfall 157, Heaviest daily snowfall 15, Deepest snow cover 6.

Records on 18 December 1930 by type
Record type	Records
Highest daily maximum	4
Lowest daily maximum	25
Highest daily minimum	6
Lowest daily minimum	17
Heaviest daily rainfall	157
Heaviest daily snowfall	15
Deepest snow cover	6

Records on 18 December 1930 by timescale: all-time 0, monthly 4, daily 226.

How Much Records Were Beaten By

190 broken records

Margins by which the 190 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 254.0. Ties are not counted.

Top 20 by Significance

18 December 1930

Top 20 records on 18 December 1930 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 1930	Algiers-Ville/Universite, DZ	daily rain	45.5 mm (1.8 in)	35.5 mm (1.4 in)	41 years	51 of 100 (Notable)
18 December 1930	Bumberry, AU	daily rain	76.2 mm (3.0 in)	58.2 mm (2.3 in)	23 years	49 of 100 (Notable)
18 December 1930	Buchan, AU	daily rain	54.9 mm (2.2 in)	36.4 mm (1.4 in)	24 years	41 of 100 (Notable)
18 December 1930	Mt Airy 2 W, US	daily snow depth	35.6 cm (14.0 in)	25.4 cm (10.0 in)	12 years	41 of 100 (Notable)
18 December 1930	Bukalong Station, AU	daily rain	56.4 mm (2.2 in)	32.0 mm (1.3 in)	25 years	40 of 100 (Notable)
18 December 1930	Webster City, US	daily snow depth	25.4 cm (10.0 in)	25.4 cm (10.0 in)	35 years	38 of 100 (Notable)
18 December 1930	Dumble, AU	daily rain	36.3 mm (1.4 in)	29.9 mm (1.2 in)	33 years	36 of 100 (Notable)
18 December 1930	Cathcart (Old Post Office), AU	daily rain	44.5 mm (1.8 in)	28.2 mm (1.1 in)	28 years	33 of 100 (Routine)
18 December 1930	Clarksville, US	daily rain	50.8 mm (2.0 in)	22.4 mm (0.9 in)	24 years	31 of 100 (Routine)
18 December 1930	Wallangarra Post Office, AU	daily rain	56.9 mm (2.2 in)	25.4 mm (1.0 in)	8 years	29 of 100 (Routine)
18 December 1930	Clarence Town (Grey St), AU	daily rain	91.7 mm (3.6 in)	45.5 mm (1.8 in)	23 years	29 of 100 (Routine)
18 December 1930	Cunnamulla Post Office, AU	daily rain	36.3 mm (1.4 in)	17.2 mm (0.7 in)	16 years	28 of 100 (Routine)
18 December 1930	Buchan (Gillingall), AU	daily rain	40.4 mm (1.6 in)	30.0 mm (1.2 in)	20 years	28 of 100 (Routine)
18 December 1930	Tunis, TN	daily rain	40.5 mm (1.6 in)	17.6 mm (0.7 in)	5 years	28 of 100 (Routine)
18 December 1930	Tarboro 1 S, US	daily rain	31.8 mm (1.3 in)	18.1 mm (0.7 in)	25 years	28 of 100 (Routine)
18 December 1930	Cobar (Springfield 2), AU	daily rain	41.9 mm (1.6 in)	20.6 mm (0.8 in)	24 years	25 of 100 (Routine)
18 December 1930	Noorinbee, AU	daily rain	31.0 mm (1.2 in)	23.4 mm (0.9 in)	25 years	25 of 100 (Routine)
18 December 1930	Nuwara Eliya, LK	daily high max	23.2 C (73.8 F)	1.0 C (1.8 F)	41 years	24 of 100 (Routine)
18 December 1930	Salisbury, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	36 years	24 of 100 (Routine)
18 December 1930	Peak Hill Post Office, AU	monthly rain	76.5 mm (3.0 in)	4.9 mm (0.19 in)	19 years	23 of 100 (Routine)

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 1930

Records set or tied on this calendar date in each year from 1793 to 1930. 1930 had 230 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 1930-12-18: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 50	185
50 to 100	2
100 to 150	1
150 to 200	0
200 to 250	0
250 to 300	2