Weather Records on 18 December 1929

366 weather records were set or tied worldwide on 18 December 1929. Highest significance: Corvallis State UNIV, US.

Key Facts for 18 December 1929

On 18 December 1929, 366 weather records were set or tied at long-record stations worldwide.
127 were record highs and 47 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 13 monthly and 352 daily.
Corvallis State UNIV set a daily record precipitation of 61.5 mm (2.4 in) on 18 December 1929.
Across 156 earlier years (1793 to 2025) the same calendar date averaged 480 records.

Record Map

366 stations

366 station records on 18 December 1929 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 December 1929: highest significance records shown on the map
Station	Country	Type	Value	Significance
Corvallis State UNIV	United States	Record daily precipitation	61.5 mm (2.4 in)	51 of 100 (Notable)
Dayville	United States	Record daily precipitation	29.7 mm (1.2 in)	48 of 100 (Notable)
Bowling Green Wwtp	United States	Record daily precipitation	61.7 mm (2.4 in)	47 of 100 (Notable)
Toledo Blade	United States	Record daily snowfall	15.2 cm (6.0 in)	43 of 100 (Notable)
Hillsdale	United States	Record daily snowfall	15.2 cm (6.0 in)	42 of 100 (Notable)
The Dalles	United States	Record daily precipitation	31.8 mm (1.3 in)	38 of 100 (Notable)
Chatham 2	Canada	Record daily precipitation	30.5 mm (1.2 in)	37 of 100 (Notable)
Prineville	United States	Record daily precipitation	42.4 mm (1.7 in)	37 of 100 (Notable)
Columbus Ohio St UNIV	United States	Record daily precipitation	29.5 mm (1.2 in)	36 of 100 (Notable)
Pocahontas 1	United States	Record daily precipitation	67.3 mm (2.6 in)	35 of 100 (Notable)
Hillsboro	United States	Record daily snowfall	12.7 cm (5.0 in)	35 of 100 (Notable)
Butlerville 2 WNW	United States	Record daily precipitation	45.2 mm (1.8 in)	35 of 100 (Notable)
Hopkinsville	United States	Record daily precipitation	56.1 mm (2.2 in)	35 of 100 (Notable)
Sparta 1 W	United States	Record daily snowfall	12.2 cm (4.8 in)	34 of 100 (Routine)
Blackville 3 W	United States	Record daily precipitation	59.7 mm (2.4 in)	34 of 100 (Routine)
Cairo River	United States	Record daily precipitation	31.0 mm (1.2 in)	32 of 100 (Routine)
1 ENE Fairfield	United States	Record daily precipitation	37.3 mm (1.5 in)	32 of 100 (Routine)
Chatham 2	Canada	Record daily snowfall	30.5 cm (12.0 in)	31 of 100 (Routine)
Glens Falls Fire STN	United States	Record daily precipitation	47.2 mm (1.9 in)	31 of 100 (Routine)
Irvington	United States	Record daily precipitation	35.3 mm (1.4 in)	30 of 100 (Routine)
Leitchfield 2 N	United States	Record daily precipitation	57.2 mm (2.3 in)	30 of 100 (Routine)
Delaware	United States	Record daily precipitation	33.3 mm (1.3 in)	30 of 100 (Routine)
Saint John	Canada	Record daily snowfall	17.8 cm (7.0 in)	29 of 100 (Routine)
Gyzylarbat	Turkmenistan	Record low minimum temperature	-18.4 C (-1.1 F)	29 of 100 (Routine)
New Burnside	United States	Record daily precipitation	37.6 mm (1.5 in)	29 of 100 (Routine)
Coldwater St School	United States	Record daily snowfall	10.2 cm (4.0 in)	29 of 100 (Routine)
Crescent City 3 NNW	United States	Record daily precipitation	68.6 mm (2.7 in)	28 of 100 (Routine)
Decatur Wtp	United States	Record daily snowfall	8.9 cm (3.5 in)	28 of 100 (Routine)
Plymouth	United States	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Corning	United States	Record daily precipitation	54.6 mm (2.1 in)	27 of 100 (Routine)
Scott	United States	Record daily precipitation	25.9 mm (1.0 in)	27 of 100 (Routine)
Greenville Wtp	United States	Record daily precipitation	35.8 mm (1.4 in)	27 of 100 (Routine)
Lambertville River	United States	Record daily precipitation	35.1 mm (1.4 in)	26 of 100 (Routine)
St Louis Eads Brg	United States	Record daily snowfall	13.2 cm (5.2 in)	26 of 100 (Routine)
Los Gatos	United States	Record high minimum temperature	12.2 C (54.0 F)	25 of 100 (Routine)
Gainesville UNIV of Fl	United States	Record daily precipitation	48.3 mm (1.9 in)	25 of 100 (Routine)
Salem	United States	Record daily precipitation	31.5 mm (1.2 in)	25 of 100 (Routine)
Philadelphia City	United States	Record daily precipitation	34.8 mm (1.4 in)	25 of 100 (Routine)
Kapskarmo	Norway	Record daily precipitation	37.8 mm (1.5 in)	24 of 100 (Routine)
Stockton 2	United States	Record high maximum temperature	17.8 C (64.0 F)	24 of 100 (Routine)
1 N McLeansboro	United States	Record daily precipitation	32.8 mm (1.3 in)	24 of 100 (Routine)
Eutawville	United States	Record daily precipitation	40.9 mm (1.6 in)	24 of 100 (Routine)
Newport	United States	Record daily precipitation	96.5 mm (3.8 in)	24 of 100 (Routine)
Albany 1 N	United States	Record daily precipitation	31.8 mm (1.3 in)	23 of 100 (Routine)
Morgantown 1	United States	Record high minimum temperature	15.6 C (60.1 F)	23 of 100 (Routine)
Milwaukee Wb City	United States	Record daily snowfall	18.0 cm (7.1 in)	23 of 100 (Routine)
Moose Jaw Chab	Canada	Record low minimum temperature	-40.0 C (-40.0 F)	22 of 100 (Routine)
Marengo	United States	Record daily precipitation	30.5 mm (1.2 in)	22 of 100 (Routine)
Little Falls City Rsch	United States	Record daily precipitation	34.3 mm (1.4 in)	22 of 100 (Routine)
Dickinson Exp STN	United States	Record low minimum temperature	-38.3 C (-36.9 F)	22 of 100 (Routine)
Derry 4 SW	United States	Record high minimum temperature	12.2 C (54.0 F)	22 of 100 (Routine)
Crescent City 3 NNW	United States	Record high minimum temperature	11.7 C (53.1 F)	21 of 100 (Routine)
Oakland	United States	Record high minimum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Santa Barbara	United States	Record high minimum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
Harrisburg	United States	Record daily precipitation	29.0 mm (1.1 in)	21 of 100 (Routine)
Jeffersonville	United States	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
Arcadia	United States	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
State College	United States	Record high minimum temperature	4.4 C (39.9 F)	21 of 100 (Routine)
Jacksonville Wb City	United States	Record high minimum temperature	17.8 C (64.0 F)	21 of 100 (Routine)
Payette	United States	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)

Counts by Type and Timescale

366 records

Records set or tied on 18 December 1929 by type: Highest daily maximum 23, Lowest daily maximum 20, Highest daily minimum 104, Lowest daily minimum 27, Heaviest daily rainfall 171, Heaviest daily snowfall 18, Deepest snow cover 3.

Records on 18 December 1929 by type
Record type	Records
Highest daily maximum	23
Lowest daily maximum	20
Highest daily minimum	104
Lowest daily minimum	27
Heaviest daily rainfall	171
Heaviest daily snowfall	18
Deepest snow cover	3

Records on 18 December 1929 by timescale: all-time 1, monthly 13, daily 352.

How Much Records Were Beaten By

307 broken records

Margins by which the 307 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 124.0. Ties are not counted.

Top 20 by Significance

18 December 1929

Top 20 records on 18 December 1929 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 December 1929	Corvallis State UNIV, US	daily rain	61.5 mm (2.4 in)	49.1 mm (1.9 in)	28 years	51 of 100 (Notable)
18 December 1929	Dayville, US	monthly rain	29.7 mm (1.2 in)	9.1 mm (0.36 in)	26 years	48 of 100 (Notable)
18 December 1929	Bowling Green Wwtp, US	monthly rain	61.7 mm (2.4 in)	18.5 mm (0.7 in)	28 years	47 of 100 (Notable)
18 December 1929	Toledo Blade, US	daily snowfall	15.2 cm (6.0 in)	11.6 cm (4.6 in)	35 years	43 of 100 (Notable)
18 December 1929	Hillsdale, US	daily snowfall	15.2 cm (6.0 in)	12.4 cm (4.9 in)	22 years	42 of 100 (Notable)
18 December 1929	The Dalles, US	daily rain	31.8 mm (1.3 in)	19.4 mm (0.8 in)	12 years	38 of 100 (Notable)
18 December 1929	Chatham 2, CA	daily rain	30.5 mm (1.2 in)	19.1 mm (0.8 in)	15 years	37 of 100 (Notable)
18 December 1929	Prineville, US	all-time rain	42.4 mm (1.7 in)	3.5 mm (0.14 in)	28 years	37 of 100 (Notable)
18 December 1929	Columbus Ohio St UNIV, US	daily rain	29.5 mm (1.2 in)	24.2 mm (1.0 in)	4 years	36 of 100 (Notable)
18 December 1929	Pocahontas 1, US	daily rain	67.3 mm (2.6 in)	32.0 mm (1.3 in)	29 years	35 of 100 (Notable)
18 December 1929	Hillsboro, US	daily snowfall	12.7 cm (5.0 in)	10.2 cm (4.0 in)	28 years	35 of 100 (Notable)
18 December 1929	Butlerville 2 WNW, US	daily rain	45.2 mm (1.8 in)	27.9 mm (1.1 in)	16 years	35 of 100 (Notable)
18 December 1929	Hopkinsville, US	daily rain	56.1 mm (2.2 in)	35.5 mm (1.4 in)	29 years	35 of 100 (Notable)
18 December 1929	Sparta 1 W, US	daily snowfall	12.2 cm (4.8 in)	9.7 cm (3.8 in)	28 years	34 of 100 (Routine)
18 December 1929	Blackville 3 W, US	daily rain	59.7 mm (2.4 in)	34.3 mm (1.4 in)	12 years	34 of 100 (Routine)
18 December 1929	Cairo River, US	daily rain	31.0 mm (1.2 in)	22.6 mm (0.9 in)	31 years	32 of 100 (Routine)
18 December 1929	1 ENE Fairfield, US	daily rain	37.3 mm (1.5 in)	22.6 mm (0.9 in)	33 years	32 of 100 (Routine)
18 December 1929	Chatham 2, CA	monthly snowfall	30.5 cm (12.0 in)	2.6 cm (1.0 in)	42 years	31 of 100 (Routine)
18 December 1929	Glens Falls Fire STN, US	daily rain	47.2 mm (1.9 in)	24.8 mm (1.0 in)	14 years	31 of 100 (Routine)
18 December 1929	Irvington, US	daily rain	35.3 mm (1.4 in)	28.9 mm (1.1 in)	16 years	30 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 1929

Records set or tied on this calendar date in each year from 1793 to 1929. 1929 had 366 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 1929-12-18: 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 20	272
20 to 40	24
40 to 60	4
60 to 80	3
80 to 100	1
100 to 120	2
120 to 140	1