Weather Records on 18 December 1933

506 weather records were set or tied worldwide on 18 December 1933. Highest significance: Mangalore, IN.

Key Facts for 18 December 1933

On 18 December 1933, 506 weather records were set or tied at long-record stations worldwide.
215 were record highs and 51 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 21 monthly and 484 daily.
Mangalore set a monthly record daily precipitation of 153.2 mm (6.0 in) on 18 December 1933.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 480 records.

Record Map

506 stations

506 station records on 18 December 1933 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 December 1933: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mangalore	India	Record daily precipitation	153.2 mm (6.0 in)	62 of 100 (Major)
Mulki	India	Record daily precipitation	109.5 mm (4.3 in)	62 of 100 (Major)
Hosdurg	India	Record daily precipitation	194.8 mm (7.7 in)	54 of 100 (Notable)
Moose Jaw Chab	Canada	Record daily snowfall	10.2 cm (4.0 in)	52 of 100 (Notable)
Holalkhere	India	Record daily precipitation	71.1 mm (2.8 in)	52 of 100 (Notable)
Jagalur	India	Record daily precipitation	63.5 mm (2.5 in)	52 of 100 (Notable)
Hiriyur	India	Record daily precipitation	45.7 mm (1.8 in)	52 of 100 (Notable)
Kasargod	India	Record daily precipitation	149.6 mm (5.9 in)	50 of 100 (Notable)
Low Isles Lighthouse	Australia	Record daily precipitation	154.9 mm (6.1 in)	49 of 100 (Notable)
Sangli	India	Record daily precipitation	47.2 mm (1.9 in)	48 of 100 (Notable)
Dharmavaram	India	Record daily precipitation	46.0 mm (1.8 in)	47 of 100 (Notable)
Pulivendla	India	Record daily precipitation	38.1 mm (1.5 in)	47 of 100 (Notable)
Krishnarajpet	India	Record daily precipitation	35.8 mm (1.4 in)	47 of 100 (Notable)
Bad Blankenburg	Germany	Record snow depth	18.0 cm (7.1 in)	46 of 100 (Notable)
Micurinsk	Russia	Record daily precipitation	25.7 mm (1.0 in)	45 of 100 (Notable)
Hernando	United States	Record daily precipitation	69.9 mm (2.8 in)	44 of 100 (Notable)
Chitradurga	India	Record daily precipitation	109.2 mm (4.3 in)	42 of 100 (Notable)
Davangire	India	Record daily precipitation	28.4 mm (1.1 in)	40 of 100 (Notable)
Bhimavaram	India	Record daily precipitation	34.8 mm (1.4 in)	38 of 100 (Notable)
Moncton	Canada	Record daily snowfall	35.6 cm (14.0 in)	37 of 100 (Notable)
Brinkley	United States	Record daily precipitation	79.2 mm (3.1 in)	37 of 100 (Notable)
Paramathi	India	Record daily precipitation	45.5 mm (1.8 in)	36 of 100 (Notable)
Calhoun 2 N	United States	Record daily precipitation	77.0 mm (3.0 in)	36 of 100 (Notable)
Ruston la Tech	United States	Record daily precipitation	82.6 mm (3.3 in)	36 of 100 (Notable)
Rison	United States	Record daily precipitation	121.9 mm (4.8 in)	33 of 100 (Routine)
Golconda River	United States	Record daily precipitation	53.8 mm (2.1 in)	33 of 100 (Routine)
Dayton Mcd	United States	Record daily precipitation	29.5 mm (1.2 in)	33 of 100 (Routine)
Jefferson 3SE	United States	Record daily precipitation	46.5 mm (1.8 in)	33 of 100 (Routine)
Kenton	United States	Record daily precipitation	60.7 mm (2.4 in)	33 of 100 (Routine)
Orleansville (Chlef)	Algeria	Record low maximum temperature	5.0 C (41.0 F)	31 of 100 (Routine)
Chittoor	India	Record daily precipitation	38.1 mm (1.5 in)	31 of 100 (Routine)
Coondapur	India	Record daily precipitation	28.7 mm (1.1 in)	31 of 100 (Routine)
Krishnarajnagar	India	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)
Karkal	India	Record daily precipitation	29.5 mm (1.2 in)	30 of 100 (Routine)
Caloundra Signal Station	Australia	Record daily precipitation	97.3 mm (3.8 in)	29 of 100 (Routine)
Udipi	India	Record daily precipitation	55.9 mm (2.2 in)	29 of 100 (Routine)
Sellheim	Australia	Record daily precipitation	60.5 mm (2.4 in)	28 of 100 (Routine)
Marion	United States	Record daily precipitation	55.9 mm (2.2 in)	28 of 100 (Routine)
Austin	United States	Record daily precipitation	64.8 mm (2.6 in)	28 of 100 (Routine)
Lexington	United States	Record high minimum temperature	12.8 C (55.0 F)	28 of 100 (Routine)
Revelstoke	Canada	Record daily snowfall	33.0 cm (13.0 in)	27 of 100 (Routine)
Soldier Creek Adm Site	United States	Record daily precipitation	34.8 mm (1.4 in)	27 of 100 (Routine)
Murfreesboro 5 N	United States	Record daily precipitation	36.1 mm (1.4 in)	27 of 100 (Routine)
Helena	United States	Record daily precipitation	56.1 mm (2.2 in)	26 of 100 (Routine)
Hot Springs 1 NNE	United States	Record daily precipitation	43.4 mm (1.7 in)	26 of 100 (Routine)
Bolivar Wtr Wks	United States	Record daily precipitation	83.8 mm (3.3 in)	26 of 100 (Routine)
Olympia Priest Pt Park	United States	Record daily precipitation	75.7 mm (3.0 in)	26 of 100 (Routine)
Jacksonville Wb City	United States	Record high maximum temperature	26.7 C (80.1 F)	26 of 100 (Routine)
Revelstoke	Canada	Record daily precipitation	33.0 mm (1.3 in)	25 of 100 (Routine)
Lisboa Geofisica	Portugal	Record low minimum temperature	1.1 C (34.0 F)	25 of 100 (Routine)
Barramunga	Australia	Record daily precipitation	29.2 mm (1.1 in)	24 of 100 (Routine)
Innsbruck	Austria	Record low minimum temperature	-20.1 C (-4.2 F)	24 of 100 (Routine)
Chicoutimi	Canada	Record daily snowfall	8.4 cm (3.3 in)	24 of 100 (Routine)
Louisville 1 E	United States	Record high maximum temperature	27.2 C (81.0 F)	24 of 100 (Routine)
Covington 3 SW	United States	Record daily precipitation	50.8 mm (2.0 in)	24 of 100 (Routine)
Warren 2 ENE	United States	Record daily precipitation	78.7 mm (3.1 in)	23 of 100 (Routine)
Sedan	United States	Record daily precipitation	55.9 mm (2.2 in)	23 of 100 (Routine)
Masset Airport	Canada	Record low minimum temperature	-7.8 C (18.0 F)	22 of 100 (Routine)
Banff	Canada	Record daily snowfall	13.2 cm (5.2 in)	22 of 100 (Routine)
Kakinada	India	Record daily precipitation	32.0 mm (1.3 in)	22 of 100 (Routine)

Counts by Type and Timescale

506 records

Records set or tied on 18 December 1933 by type: Highest daily maximum 78, Lowest daily maximum 23, Highest daily minimum 137, Lowest daily minimum 28, Heaviest daily rainfall 227, Heaviest daily snowfall 10, Deepest snow cover 3.

Records on 18 December 1933 by type
Record type	Records
Highest daily maximum	78
Lowest daily maximum	23
Highest daily minimum	137
Lowest daily minimum	28
Heaviest daily rainfall	227
Heaviest daily snowfall	10
Deepest snow cover	3

Records on 18 December 1933 by timescale: all-time 1, monthly 21, daily 484.

How Much Records Were Beaten By

429 broken records

Margins by which the 429 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 204.0. Ties are not counted.

Top 20 by Significance

18 December 1933

Top 20 records on 18 December 1933 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 1933	Mangalore, IN	monthly rain	153.2 mm (6.0 in)	119.7 mm (4.7 in)	31 years	62 of 100 (Major)
18 December 1933	Mulki, IN	monthly rain	109.5 mm (4.3 in)	73.2 mm (2.9 in)	31 years	62 of 100 (Major)
18 December 1933	Hosdurg, IN	monthly rain	194.8 mm (7.7 in)	147.0 mm (5.8 in)	5 years	54 of 100 (Notable)
18 December 1933	Moose Jaw Chab, CA	daily snowfall	10.2 cm (4.0 in)	7.7 cm (3.0 in)	46 years	52 of 100 (Notable)
18 December 1933	Holalkhere, IN	daily rain	71.1 mm (2.8 in)	71.1 mm (2.8 in)	32 years	52 of 100 (Notable)
18 December 1933	Jagalur, IN	daily rain	63.5 mm (2.5 in)	55.4 mm (2.2 in)	31 years	52 of 100 (Notable)
18 December 1933	Hiriyur, IN	daily rain	45.7 mm (1.8 in)	45.7 mm (1.8 in)	32 years	52 of 100 (Notable)
18 December 1933	Kasargod, IN	monthly rain	149.6 mm (5.9 in)	59.7 mm (2.4 in)	19 years	50 of 100 (Notable)
18 December 1933	Low Isles Lighthouse, AU	daily rain	154.9 mm (6.1 in)	115.5 mm (4.5 in)	16 years	49 of 100 (Notable)
18 December 1933	Sangli, IN	daily rain	47.2 mm (1.9 in)	36.0 mm (1.4 in)	31 years	48 of 100 (Notable)
18 December 1933	Dharmavaram, IN	daily rain	46.0 mm (1.8 in)	46.0 mm (1.8 in)	32 years	47 of 100 (Notable)
18 December 1933	Pulivendla, IN	daily rain	38.1 mm (1.5 in)	31.7 mm (1.2 in)	27 years	47 of 100 (Notable)
18 December 1933	Krishnarajpet, IN	daily rain	35.8 mm (1.4 in)	35.8 mm (1.4 in)	32 years	47 of 100 (Notable)
18 December 1933	Bad Blankenburg, DE	daily snow depth	18.0 cm (7.1 in)	18.0 cm (7.1 in)	50 years	46 of 100 (Notable)
18 December 1933	Micurinsk, RU	daily rain	25.7 mm (1.0 in)	10.7 mm (0.4 in)	32 years	45 of 100 (Notable)
18 December 1933	Hernando, US	daily rain	69.9 mm (2.8 in)	63.5 mm (2.5 in)	2 years	44 of 100 (Notable)
18 December 1933	Chitradurga, IN	monthly rain	109.2 mm (4.3 in)	38.1 mm (1.5 in)	3 years	42 of 100 (Notable)
18 December 1933	Davangire, IN	daily rain	28.4 mm (1.1 in)	28.4 mm (1.1 in)	32 years	40 of 100 (Notable)
18 December 1933	Bhimavaram, IN	daily rain	34.8 mm (1.4 in)	34.3 mm (1.4 in)	27 years	38 of 100 (Notable)
18 December 1933	Moncton, CA	daily snowfall	35.6 cm (14.0 in)	20.4 cm (8.0 in)	4 years	37 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

1793 to 1933

Records set or tied on this calendar date in each year from 1793 to 1933. 1933 had 506 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 1933-12-18: 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	412
50 to 100	11
100 to 150	3
150 to 200	2
200 to 250	1