Weather Records on 18 December 1974

229 weather records were set or tied worldwide on 18 December 1974. Highest significance: Port Aux Basques, CA.

Key Facts for 18 December 1974

On 18 December 1974, 229 weather records were set or tied at long-record stations worldwide.
38 were record highs and 38 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 228 daily.
Port Aux Basques set a daily record snowfall of 28.7 cm (11.3 in) on 18 December 1974.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 481 records.

Record Map

229 stations

229 station records on 18 December 1974 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 December 1974: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Aux Basques	Canada	Record daily snowfall	28.7 cm (11.3 in)	52 of 100 (Notable)
Rooirivier (Bos)	South Africa	Record daily precipitation	28.0 mm (1.1 in)	44 of 100 (Notable)
Natashquan A	Canada	Record daily snowfall	20.8 cm (8.2 in)	41 of 100 (Notable)
De Jong Ranch, Howic	South Africa	Record daily precipitation	53.3 mm (2.1 in)	39 of 100 (Notable)
Heavitree, Estcourt	South Africa	Record daily precipitation	53.1 mm (2.1 in)	39 of 100 (Notable)
Doornkuil	South Africa	Record daily precipitation	48.0 mm (1.9 in)	39 of 100 (Notable)
Kearney 4 NE	United States	Record snow depth	27.9 cm (11.0 in)	38 of 100 (Notable)
Bairro Do Pinheiro	Brazil	Record daily precipitation	59.5 mm (2.3 in)	34 of 100 (Routine)
Kalkfontein	South Africa	Record daily precipitation	43.5 mm (1.7 in)	34 of 100 (Routine)
Nieuwejaarsfontein	South Africa	Record daily precipitation	46.5 mm (1.8 in)	33 of 100 (Routine)
Fazenda Chantebled	Brazil	Record daily precipitation	61.5 mm (2.4 in)	32 of 100 (Routine)
Cravinhos	Brazil	Record daily precipitation	102.2 mm (4.0 in)	31 of 100 (Routine)
Bulwater	South Africa	Record daily precipitation	36.0 mm (1.4 in)	30 of 100 (Routine)
Pretoria-Fountains	South Africa	Record daily precipitation	25.5 mm (1.0 in)	30 of 100 (Routine)
Uitenhage	South Africa	Record daily precipitation	34.0 mm (1.3 in)	28 of 100 (Routine)
Borinquen AP	Puerto Rico [United States]	Record low minimum temperature	17.2 C (63.0 F)	27 of 100 (Routine)
Zugspitze	Germany	Record snow depth	415.0 cm (163.4 in)	26 of 100 (Routine)
Arecibo 3 ESE	Puerto Rico [United States]	Record low minimum temperature	16.1 C (61.0 F)	26 of 100 (Routine)
Fellsmere 7 SSW	United States	Record low minimum temperature	1.1 C (34.0 F)	26 of 100 (Routine)
Richmond-Natal (Tnk)	South Africa	Record daily precipitation	52.0 mm (2.0 in)	25 of 100 (Routine)
Glen Eland	South Africa	Record daily precipitation	51.3 mm (2.0 in)	25 of 100 (Routine)
Guaianas	Brazil	Record daily precipitation	49.4 mm (1.9 in)	24 of 100 (Routine)
Grindstone Island	Canada	Record daily snowfall	21.3 cm (8.4 in)	24 of 100 (Routine)
Doornfontein	South Africa	Record daily precipitation	30.4 mm (1.2 in)	24 of 100 (Routine)
Tapirai	Brazil	Record daily precipitation	55.1 mm (2.2 in)	23 of 100 (Routine)
Val (Sar)	South Africa	Record daily precipitation	44.0 mm (1.7 in)	23 of 100 (Routine)
Barao de Antonina	Brazil	Record daily precipitation	59.0 mm (2.3 in)	22 of 100 (Routine)
Oujda	Morocco	Record low minimum temperature	-2.0 C (28.4 F)	22 of 100 (Routine)
Tamandua	Brazil	Record daily precipitation	55.3 mm (2.2 in)	21 of 100 (Routine)
Port Aux Basques	Canada	Record daily precipitation	39.1 mm (1.5 in)	21 of 100 (Routine)
Guanacevi (Smn)	Mexico	Record high minimum temperature	8.9 C (48.0 F)	21 of 100 (Routine)
Ventspils	Latvia	Record daily precipitation	18.3 mm (0.7 in)	20 of 100 (Routine)
Grootmodderfontein	South Africa	Record daily precipitation	24.0 mm (0.9 in)	20 of 100 (Routine)
Zima	Russia	Record daily precipitation	8.0 mm (0.31 in)	20 of 100 (Routine)
Campbell (Mun)	South Africa	Record daily precipitation	10.5 mm (0.4 in)	20 of 100 (Routine)
Natashquan A	Canada	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Tlachichuca	Mexico	Record daily precipitation	10.9 mm (0.4 in)	20 of 100 (Routine)
Bonn-Friesdorf	Germany	Record daily precipitation	10.8 mm (0.4 in)	20 of 100 (Routine)
Lyndhurst Post Office	Australia	Record daily precipitation	6.0 mm (0.24 in)	20 of 100 (Routine)
Bushy Park	Australia	Record daily precipitation	4.6 mm (0.18 in)	20 of 100 (Routine)
Acarape	Brazil	Record daily precipitation	16.1 mm (0.6 in)	20 of 100 (Routine)
Oorlogshoek	South Africa	Record daily precipitation	2.2 mm (0.09 in)	20 of 100 (Routine)
Gatlinburg 2 SW	United States	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)
Assiniboia	Canada	Record daily precipitation	0.5 mm (0.02 in)	20 of 100 (Routine)
Assiniboia	Canada	Record daily snowfall	0.5 cm (0.2 in)	20 of 100 (Routine)
Magadan	Russia	Record daily precipitation	11.5 mm (0.5 in)	20 of 100 (Routine)
Harrington Harbour	Canada	Record daily precipitation	20.6 mm (0.8 in)	20 of 100 (Routine)
Malta	Brazil	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Stephenville A	Canada	Record daily precipitation	19.3 mm (0.8 in)	20 of 100 (Routine)
San Marcos	Mexico	Record daily precipitation	6.4 mm (0.25 in)	20 of 100 (Routine)
Orel	Russia	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Gatlinburg 2 SW	United States	Record snow depth	2.5 cm (1.0 in)	20 of 100 (Routine)
Angoon Pwr	United States	Record daily precipitation	10.7 mm (0.4 in)	20 of 100 (Routine)
Indee	Australia	Record daily precipitation	7.0 mm (0.28 in)	20 of 100 (Routine)
Alert Bay	Canada	Record daily precipitation	29.7 mm (1.2 in)	20 of 100 (Routine)
Harrington Harbour	Canada	Record daily snowfall	17.0 cm (6.7 in)	20 of 100 (Routine)
Stephenville A	Canada	Record daily snowfall	16.8 cm (6.6 in)	20 of 100 (Routine)
Ustordynskij	Russia	Record daily precipitation	6.9 mm (0.27 in)	20 of 100 (Routine)
Geraldton Airport	Australia	Record high maximum temperature	41.6 C (106.9 F)	19 of 100 (Routine)
Morretes	Brazil	Record daily precipitation	22.4 mm (0.9 in)	19 of 100 (Routine)

Counts by Type and Timescale

229 records

Records set or tied on 18 December 1974 by type: Highest daily maximum 8, Lowest daily maximum 17, Highest daily minimum 30, Lowest daily minimum 21, Heaviest daily rainfall 123, Heaviest daily snowfall 22, Deepest snow cover 8.

Records on 18 December 1974 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	17
Highest daily minimum	30
Lowest daily minimum	21
Heaviest daily rainfall	123
Heaviest daily snowfall	22
Deepest snow cover	8

Records on 18 December 1974 by timescale: all-time 0, monthly 1, daily 228.

How Much Records Were Beaten By

195 broken records

Margins by which the 195 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 228.0. Ties are not counted.

Top 20 by Significance

18 December 1974

Top 20 records on 18 December 1974 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 1974	Port Aux Basques, CA	daily snowfall	28.7 cm (11.3 in)	13.5 cm (5.3 in)	52 years	52 of 100 (Notable)
18 December 1974	Rooirivier (Bos), ZA	daily rain	28.0 mm (1.1 in)	28.0 mm (1.1 in)	51 years	44 of 100 (Notable)
18 December 1974	Natashquan A, CA	daily snowfall	20.8 cm (8.2 in)	10.6 cm (4.2 in)	52 years	41 of 100 (Notable)
18 December 1974	De Jong Ranch, Howic, ZA	daily rain	53.3 mm (2.1 in)	17.0 mm (0.7 in)	72 years	39 of 100 (Notable)
18 December 1974	Heavitree, Estcourt, ZA	daily rain	53.1 mm (2.1 in)	15.0 mm (0.6 in)	61 years	39 of 100 (Notable)
18 December 1974	Doornkuil, ZA	daily rain	48.0 mm (1.9 in)	26.7 mm (1.1 in)	44 years	39 of 100 (Notable)
18 December 1974	Kearney 4 NE, US	daily snow depth	27.9 cm (11.0 in)	22.8 cm (9.0 in)	53 years	38 of 100 (Notable)
18 December 1974	Bairro Do Pinheiro, BR	daily rain	59.5 mm (2.3 in)	35.1 mm (1.4 in)	8 years	34 of 100 (Routine)
18 December 1974	Kalkfontein, ZA	daily rain	43.5 mm (1.7 in)	20.1 mm (0.8 in)	28 years	34 of 100 (Routine)
18 December 1974	Nieuwejaarsfontein, ZA	daily rain	46.5 mm (1.8 in)	26.5 mm (1.0 in)	13 years	33 of 100 (Routine)
18 December 1974	Fazenda Chantebled, BR	daily rain	61.5 mm (2.4 in)	42.6 mm (1.7 in)	16 years	32 of 100 (Routine)
18 December 1974	Cravinhos, BR	daily rain	102.2 mm (4.0 in)	42.5 mm (1.7 in)	25 years	31 of 100 (Routine)
18 December 1974	Bulwater, ZA	daily rain	36.0 mm (1.4 in)	8.6 mm (0.34 in)	53 years	30 of 100 (Routine)
18 December 1974	Pretoria-Fountains, ZA	daily rain	25.5 mm (1.0 in)	3.9 mm (0.15 in)	67 years	30 of 100 (Routine)
18 December 1974	Uitenhage, ZA	daily rain	34.0 mm (1.3 in)	5.6 mm (0.22 in)	57 years	28 of 100 (Routine)
18 December 1974	Borinquen AP, PR	daily low min	17.2 C (63.0 F)	2.2 C (4.0 F)	24 years	27 of 100 (Routine)
18 December 1974	Zugspitze, DE	daily snow depth	415.0 cm (163.4 in)	15.0 cm (5.9 in)	61 years	26 of 100 (Routine)
18 December 1974	Arecibo 3 ESE, PR	daily low min	16.1 C (61.0 F)	1.7 C (3.1 F)	24 years	26 of 100 (Routine)
18 December 1974	Fellsmere 7 SSW, US	daily low min	1.1 C (34.0 F)	2.2 C (4.0 F)	53 years	26 of 100 (Routine)
18 December 1974	Richmond-Natal (Tnk), ZA	daily rain	52.0 mm (2.0 in)	19.5 mm (0.8 in)	13 years	25 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 1974

Records set or tied on this calendar date in each year from 1793 to 1974. 1974 had 229 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 1974-12-18: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	187
50 to 100	3
100 to 150	3
150 to 200	1
200 to 250	1