Weather Records on 21 December 1933

581 weather records were set or tied worldwide on 21 December 1933. Highest significance: Matheran, IN.

Key Facts for 21 December 1933

On 21 December 1933, 581 weather records were set or tied at long-record stations worldwide.
339 were record highs and 14 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 561 daily.
Matheran set a monthly record daily precipitation of 58.4 mm (2.3 in) on 21 December 1933.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 489 records.

Record Map

581 stations

581 station records on 21 December 1933 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 1933: highest significance records shown on the map
Station	Country	Type	Value	Significance
Matheran	India	Record daily precipitation	58.4 mm (2.3 in)	51 of 100 (Notable)
Digby	Canada	Record daily snowfall	15.2 cm (6.0 in)	45 of 100 (Notable)
Ambalapuza	India	Record daily precipitation	57.2 mm (2.3 in)	42 of 100 (Notable)
Khanpur	India	Record daily precipitation	30.0 mm (1.2 in)	42 of 100 (Notable)
Beaver Lake	Canada	Record daily precipitation	63.8 mm (2.5 in)	41 of 100 (Notable)
White River	Canada	Record daily snowfall	15.2 cm (6.0 in)	37 of 100 (Notable)
Mavelikara	India	Record daily precipitation	77.5 mm (3.1 in)	35 of 100 (Notable)
Kholapur	India	Record daily precipitation	27.9 mm (1.1 in)	35 of 100 (Notable)
Moncton	Canada	Record daily snowfall	22.9 cm (9.0 in)	32 of 100 (Routine)
Milan	Italy	Record low minimum temperature	-10.6 C (12.9 F)	32 of 100 (Routine)
Chilliwack	Canada	Record daily precipitation	63.8 mm (2.5 in)	30 of 100 (Routine)
Princeton	Canada	Record daily precipitation	34.8 mm (1.4 in)	30 of 100 (Routine)
Shegaon	India	Record daily precipitation	32.0 mm (1.3 in)	30 of 100 (Routine)
Moxee	United States	Record high maximum temperature	18.3 C (64.9 F)	30 of 100 (Routine)
Digby	Canada	Record daily precipitation	34.3 mm (1.4 in)	29 of 100 (Routine)
Portland	United States	Record daily snowfall	31.5 cm (12.4 in)	29 of 100 (Routine)
Quatsino	Canada	Record daily snowfall	7.6 cm (3.0 in)	28 of 100 (Routine)
Princeton	Canada	Record daily snowfall	33.0 cm (13.0 in)	27 of 100 (Routine)
Portland Rfc City	United States	Record high minimum temperature	12.2 C (54.0 F)	25 of 100 (Routine)
Victoria Gonzales Hts	Canada	Record daily precipitation	37.1 mm (1.5 in)	24 of 100 (Routine)
Brahmapuri	India	Record daily precipitation	40.6 mm (1.6 in)	24 of 100 (Routine)
Ellensburg	United States	Record high maximum temperature	12.8 C (55.0 F)	24 of 100 (Routine)
Rosalia	United States	Record high minimum temperature	8.3 C (46.9 F)	24 of 100 (Routine)
Wenatchee 6 SW	United States	Record daily precipitation	31.8 mm (1.3 in)	24 of 100 (Routine)
Kottarakara	India	Record daily precipitation	39.9 mm (1.6 in)	23 of 100 (Routine)
Forest Grove	United States	Record high minimum temperature	10.0 C (50.0 F)	23 of 100 (Routine)
Colfax	United States	Record high minimum temperature	8.9 C (48.0 F)	23 of 100 (Routine)
Cheviot Fells	South Africa	Record daily precipitation	25.7 mm (1.0 in)	22 of 100 (Routine)
Porthill	United States	Record high maximum temperature	11.7 C (53.1 F)	22 of 100 (Routine)
Broken Bow 2 W	United States	Record high maximum temperature	21.7 C (71.1 F)	22 of 100 (Routine)
Kearney 4 NE	United States	Record high maximum temperature	18.9 C (66.0 F)	22 of 100 (Routine)
Cascade Locks	United States	Record high maximum temperature	17.2 C (63.0 F)	22 of 100 (Routine)
Cascade Locks	United States	Record high minimum temperature	11.7 C (53.1 F)	22 of 100 (Routine)
Sunnyside	United States	Record high minimum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Rock Rapids	United States	Record high maximum temperature	12.2 C (54.0 F)	21 of 100 (Routine)
Missoula 6 NW WFO	United States	Record high maximum temperature	13.3 C (55.9 F)	21 of 100 (Routine)
Curtis	United States	Record high maximum temperature	20.0 C (68.0 F)	21 of 100 (Routine)
Geneva	United States	Record high maximum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Ravenna	United States	Record high maximum temperature	21.1 C (70.0 F)	21 of 100 (Routine)
Raton	United States	Record high maximum temperature	21.1 C (70.0 F)	21 of 100 (Routine)
Joseph	United States	Record high minimum temperature	5.0 C (41.0 F)	21 of 100 (Routine)
Marion	United States	Record high maximum temperature	15.0 C (59.0 F)	21 of 100 (Routine)
New Braunfels	United States	Record high maximum temperature	28.3 C (82.9 F)	21 of 100 (Routine)
Lakeside	United States	Record high maximum temperature	14.4 C (57.9 F)	21 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record high maximum temperature	16.1 C (61.0 F)	21 of 100 (Routine)
Hohenpeissenberg	Germany	Record daily precipitation	17.5 mm (0.7 in)	20 of 100 (Routine)
Atyrau	Kazakhstan	Record daily precipitation	16.8 mm (0.7 in)	20 of 100 (Routine)
Malmesbury	South Africa	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Clanwilliam (Pol)	South Africa	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Warora	India	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Karjat	India	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Chiplun	India	Record daily precipitation	19.6 mm (0.8 in)	20 of 100 (Routine)
White River	Canada	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Moncton	Canada	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Barkly East	South Africa	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Durdidwarrah	Australia	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Pincher Creek Town	Canada	Record daily precipitation	11.4 mm (0.4 in)	20 of 100 (Routine)
Cap Chat	Canada	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Badnera	India	Record daily precipitation	9.1 mm (0.36 in)	20 of 100 (Routine)
Mangaon	India	Record daily precipitation	12.4 mm (0.5 in)	20 of 100 (Routine)

Counts by Type and Timescale

581 records

Records set or tied on 21 December 1933 by type: Highest daily maximum 257, Lowest daily maximum 8, Highest daily minimum 82, Lowest daily minimum 6, Heaviest daily rainfall 208, Heaviest daily snowfall 19, Deepest snow cover 1.

Records on 21 December 1933 by type
Record type	Records
Highest daily maximum	257
Lowest daily maximum	8
Highest daily minimum	82
Lowest daily minimum	6
Heaviest daily rainfall	208
Heaviest daily snowfall	19
Deepest snow cover	1

Records on 21 December 1933 by timescale: all-time 0, monthly 20, daily 561.

How Much Records Were Beaten By

501 broken records

Margins by which the 501 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 152.0. Ties are not counted.

Top 20 by Significance

21 December 1933

Top 20 records on 21 December 1933 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 1933	Matheran, IN	monthly rain	58.4 mm (2.3 in)	37.6 mm (1.5 in)	4 years	51 of 100 (Notable)
21 December 1933	Digby, CA	daily snowfall	15.2 cm (6.0 in)	15.2 cm (6.0 in)	61 years	45 of 100 (Notable)
21 December 1933	Ambalapuza, IN	daily rain	57.2 mm (2.3 in)	57.2 mm (2.3 in)	32 years	42 of 100 (Notable)
21 December 1933	Khanpur, IN	daily rain	30.0 mm (1.2 in)	30.0 mm (1.2 in)	32 years	42 of 100 (Notable)
21 December 1933	Beaver Lake, CA	daily rain	63.8 mm (2.5 in)	37.6 mm (1.5 in)	16 years	41 of 100 (Notable)
21 December 1933	White River, CA	daily snowfall	15.2 cm (6.0 in)	9.1 cm (3.6 in)	31 years	37 of 100 (Notable)
21 December 1933	Mavelikara, IN	daily rain	77.5 mm (3.1 in)	52.1 mm (2.1 in)	19 years	35 of 100 (Notable)
21 December 1933	Kholapur, IN	daily rain	27.9 mm (1.1 in)	27.9 mm (1.1 in)	32 years	35 of 100 (Notable)
21 December 1933	Moncton, CA	daily snowfall	22.9 cm (9.0 in)	11.2 cm (4.4 in)	34 years	32 of 100 (Routine)
21 December 1933	Milan, IT	daily low min	-10.6 C (12.9 F)	0.4 C (0.7 F)	72 years	32 of 100 (Routine)
21 December 1933	Chilliwack, CA	daily rain	63.8 mm (2.5 in)	25.7 mm (1.0 in)	18 years	30 of 100 (Routine)
21 December 1933	Princeton, CA	monthly rain	34.8 mm (1.4 in)	4.3 mm (0.17 in)	27 years	30 of 100 (Routine)
21 December 1933	Shegaon, IN	daily rain	32.0 mm (1.3 in)	16.0 mm (0.6 in)	24 years	30 of 100 (Routine)
21 December 1933	Moxee, US	daily high max	18.3 C (64.9 F)	7.7 C (13.9 F)	39 years	30 of 100 (Routine)
21 December 1933	Digby, CA	daily rain	34.3 mm (1.4 in)	22.1 mm (0.9 in)	11 years	29 of 100 (Routine)
21 December 1933	Portland, US	daily snowfall	31.5 cm (12.4 in)	9.9 cm (3.9 in)	23 years	29 of 100 (Routine)
21 December 1933	Quatsino, CA	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	37 years	28 of 100 (Routine)
21 December 1933	Princeton, CA	monthly snowfall	33.0 cm (13.0 in)	2.5 cm (1.0 in)	27 years	27 of 100 (Routine)
21 December 1933	Portland Rfc City, US	daily high min	12.2 C (54.0 F)	1.1 C (2.0 F)	57 years	25 of 100 (Routine)
21 December 1933	Victoria Gonzales Hts, CA	daily rain	37.1 mm (1.5 in)	16.0 mm (0.6 in)	8 years	24 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 1933

Records set or tied on this calendar date in each year from 1793 to 1933. 1933 had 581 records.

Counts for years before the ledger starts come from the same station rules.

Records on 12-21 in each year
Year	Records
1793	1
1794	1
1799	1
1801	2
1808	3
1825	1
1828	1
1839	1
1846	1
1850	1
1855	7
1859	1
1860	1
1868	1
1870	1
1871	2
1874	2
1875	3
1876	1
1877	1
1878	1
1879	1
1880	1
1884	1
1886	3
1889	1
1890	4
1893	4
1894	1
1895	5
1896	3
1897	3
1898	1
1900	8
1901	15
1902	5
1903	25
1904	3
1905	15
1906	15
1907	17
1908	19
1909	20
1910	29
1911	36
1912	23
1913	11
1914	107
1915	43
1916	40
1917	18
1918	41
1919	57
1920	30
1921	104
1922	34
1923	323
1924	377
1925	120
1926	178
1927	147
1928	70
1929	156
1930	66
1931	556
1932	150
1933	581
1934	230
1935	398
1936	323
1937	189
1938	145
1939	140
1940	622
1941	651
1942	968
1943	148
1944	762
1945	396
1946	495
1947	700
1948	297
1949	1,281
1950	504
1951	1,061
1952	197
1953	256
1954	444
1955	888
1956	672
1957	846
1958	516
1959	272
1960	585
1961	254
1962	563
1963	1,137
1964	613
1965	247
1966	400
1967	1,923
1968	818
1969	828
1970	547
1971	680
1972	651
1973	1,292
1974	374
1975	548
1976	446
1977	470
1978	517
1979	558
1980	726
1981	1,476
1982	702
1983	3,324
1984	1,012
1985	979
1986	404
1987	775
1988	717
1989	3,203
1990	2,701
1991	1,125
1992	751
1993	967
1994	793
1995	878
1996	1,114
1997	810
1998	1,142
1999	851
2000	944
2001	650
2002	579
2003	1,103
2004	675
2005	606
2006	1,443
2007	946
2008	1,062
2009	1,097
2010	2,039
2011	653
2012	759
2013	1,029
2014	878
2015	1,173
2016	543
2017	459
2018	742
2019	755
2020	965
2021	323
2022	528
2023	1,170
2024	778
2025	1,099

Download the Data

Data for records on 1933-12-21: 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 2026-10-14 (14 October 2026). Records are computed by this site and are not official.

Data as of 2026-10-12. Last revised 12 October 2026 (2026-10-12).

Margin	Records
0 to 20	477
20 to 40	15
40 to 60	4
60 to 80	1
80 to 100	2
100 to 120	1
120 to 140	0
140 to 160	1