Weather Records on 21 December 1927

147 weather records were set or tied worldwide on 21 December 1927. Highest significance: Jena Sternwarte, DE.

Key Facts for 21 December 1927

On 21 December 1927, 147 weather records were set or tied at long-record stations worldwide.
24 were record highs and 75 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 9 monthly and 136 daily.
Jena Sternwarte set a monthly record low minimum temperature of -28.8 C (-19.8 F) on 21 December 1927.
Across 158 earlier years (1793 to 2025) the same calendar date averaged 491 records.

Record Map

147 stations

147 station records on 21 December 1927 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 21 December 1927: highest significance records shown on the map
Station	Country	Type	Value	Significance
Jena Sternwarte	Germany	Record low minimum temperature	-28.8 C (-19.8 F)	41 of 100 (Notable)
Cottbus	Germany	Record low minimum temperature	-22.2 C (-8.0 F)	35 of 100 (Notable)
Petropavlovskij Majak	Russia	Record daily precipitation	29.9 mm (1.2 in)	35 of 100 (Notable)
Petropavlovsk-Kamchatskij	Russia	Record daily precipitation	29.9 mm (1.2 in)	35 of 100 (Notable)
Ashwell	Australia	Record daily precipitation	52.8 mm (2.1 in)	33 of 100 (Routine)
Plauen	Germany	Record snow depth	19.0 cm (7.5 in)	33 of 100 (Routine)
Wien	Austria	Record low minimum temperature	-20.7 C (-5.3 F)	32 of 100 (Routine)
Hvar	Croatia	Record low minimum temperature	-3.0 C (26.6 F)	32 of 100 (Routine)
Praha-Klementinum	Czech Republic	Record low minimum temperature	-20.4 C (-4.7 F)	31 of 100 (Routine)
Berlin-Dahlem	Germany	Record low minimum temperature	-19.4 C (-2.9 F)	30 of 100 (Routine)
Mundoolin	Australia	Record daily precipitation	38.9 mm (1.5 in)	29 of 100 (Routine)
Gorlitz	Germany	Record low minimum temperature	-22.1 C (-7.8 F)	29 of 100 (Routine)
Braunschweig (T.H.)	Germany	Record low minimum temperature	-18.8 C (-1.8 F)	29 of 100 (Routine)
Plauen	Germany	Record low minimum temperature	-26.0 C (-14.8 F)	28 of 100 (Routine)
Gatton Allan Street	Australia	Record daily precipitation	70.4 mm (2.8 in)	27 of 100 (Routine)
Killarney Post Office	Australia	Record daily precipitation	38.1 mm (1.5 in)	26 of 100 (Routine)
McDonnell Station	Australia	Record daily precipitation	78.7 mm (3.1 in)	24 of 100 (Routine)
Llanrheidol Station	Australia	Record daily precipitation	32.3 mm (1.3 in)	24 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record low minimum temperature	-16.0 C (3.2 F)	24 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record low maximum temperature	-9.6 C (14.7 F)	24 of 100 (Routine)
Arnsberg	Germany	Record low minimum temperature	-16.3 C (2.7 F)	24 of 100 (Routine)
Kremsmuenster	Austria	Record low maximum temperature	-12.1 C (10.2 F)	23 of 100 (Routine)
Kremsmuenster	Austria	Record low minimum temperature	-18.8 C (-1.8 F)	23 of 100 (Routine)
Chicoutimi	Canada	Record high minimum temperature	1.1 C (34.0 F)	23 of 100 (Routine)
Magdeburg	Germany	Record low minimum temperature	-19.9 C (-3.8 F)	23 of 100 (Routine)
La Crosse Wb City	United States	Record snow depth	38.1 cm (15.0 in)	23 of 100 (Routine)
Wallangarra Post Office	Australia	Record daily precipitation	29.2 mm (1.1 in)	22 of 100 (Routine)
Sandvig	Denmark	Record low maximum temperature	-3.8 C (25.2 F)	22 of 100 (Routine)
Plauen	Germany	Record low maximum temperature	-9.7 C (14.5 F)	22 of 100 (Routine)
Wrixum/Fohr	Germany	Record low maximum temperature	-6.3 C (20.7 F)	22 of 100 (Routine)
New Smyrna Beach	United States	Record low maximum temperature	9.4 C (48.9 F)	22 of 100 (Routine)
Dalby Post Office	Australia	Record daily precipitation	44.5 mm (1.8 in)	21 of 100 (Routine)
Graz	Austria	Record low minimum temperature	-14.5 C (5.9 F)	21 of 100 (Routine)
Potsdam	Germany	Record low minimum temperature	-20.0 C (-4.0 F)	21 of 100 (Routine)
Husum	Germany	Record low maximum temperature	-8.5 C (16.7 F)	21 of 100 (Routine)
Tomsk	Russia	Record low minimum temperature	-42.0 C (-43.6 F)	21 of 100 (Routine)
Enosburg Falls	United States	Record daily precipitation	16.3 mm (0.6 in)	20 of 100 (Routine)
Vasilevici	Belarus	Record low minimum temperature	-24.2 C (-11.6 F)	20 of 100 (Routine)
Schwerin	Germany	Record low maximum temperature	-8.7 C (16.3 F)	20 of 100 (Routine)
Potsdam	Germany	Record low maximum temperature	-11.1 C (12.0 F)	20 of 100 (Routine)
Jena Sternwarte	Germany	Record snow depth	13.0 cm (5.1 in)	20 of 100 (Routine)
Hamburg Fuhlsbuettel	Germany	Record low minimum temperature	-14.6 C (5.7 F)	20 of 100 (Routine)
Cottbus	Germany	Record low maximum temperature	-11.0 C (12.2 F)	20 of 100 (Routine)
Zagreb-Gric	Croatia	Record low minimum temperature	-15.7 C (3.7 F)	20 of 100 (Routine)
Charlton	Australia	Record daily precipitation	14.0 mm (0.6 in)	19 of 100 (Routine)
Gorlitz	Germany	Record low maximum temperature	-9.0 C (15.8 F)	19 of 100 (Routine)
Nurnberg	Germany	Record low maximum temperature	-6.8 C (19.8 F)	19 of 100 (Routine)
Altastenberg	Germany	Record low minimum temperature	-15.8 C (3.6 F)	19 of 100 (Routine)
Zagreb-Gric	Croatia	Record low maximum temperature	-11.0 C (12.2 F)	19 of 100 (Routine)
Sotchi	Russia	Record daily precipitation	54.1 mm (2.1 in)	19 of 100 (Routine)
Jonkoping	Sweden	Record low minimum temperature	-16.5 C (2.3 F)	19 of 100 (Routine)
Odesa	Ukraine	Record low maximum temperature	-11.2 C (11.8 F)	19 of 100 (Routine)
Hewitt	United States	Record daily snowfall	0.5 cm (0.2 in)	19 of 100 (Routine)
Franklyn Vale	Australia	Record daily precipitation	21.6 mm (0.9 in)	18 of 100 (Routine)
Graz	Austria	Record low maximum temperature	-10.5 C (13.1 F)	18 of 100 (Routine)
Bathurst	Canada	Record high minimum temperature	1.7 C (35.1 F)	18 of 100 (Routine)
Fredericton Unb	Canada	Record high minimum temperature	2.2 C (36.0 F)	18 of 100 (Routine)
Nordby (Fano)	Denmark	Record low minimum temperature	-8.8 C (16.2 F)	18 of 100 (Routine)
Kirchdorf/Poel	Germany	Record low maximum temperature	-8.1 C (17.4 F)	18 of 100 (Routine)
Heinersreuth-Vollhof	Germany	Record low maximum temperature	-8.3 C (17.1 F)	18 of 100 (Routine)

Counts by Type and Timescale

147 records

Records set or tied on 21 December 1927 by type: Highest daily maximum 5, Lowest daily maximum 32, Highest daily minimum 19, Lowest daily minimum 43, Heaviest daily rainfall 37, Heaviest daily snowfall 1, Deepest snow cover 10.

Records on 21 December 1927 by type
Record type	Records
Highest daily maximum	5
Lowest daily maximum	32
Highest daily minimum	19
Lowest daily minimum	43
Heaviest daily rainfall	37
Heaviest daily snowfall	1
Deepest snow cover	10

Records on 21 December 1927 by timescale: all-time 2, monthly 9, daily 136.

How Much Records Were Beaten By

131 broken records

Margins by which the 131 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 110.0. Ties are not counted.

Top 20 by Significance

21 December 1927

Top 20 records on 21 December 1927 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
21 December 1927	Jena Sternwarte, DE	monthly low min	-28.8 C (-19.8 F)	4.3 C (7.7 F)	48 years	41 of 100 (Notable)
21 December 1927	Cottbus, DE	daily low min	-22.2 C (-8.0 F)	11.3 C (20.3 F)	27 years	35 of 100 (Notable)
21 December 1927	Petropavlovskij Majak, RU	daily rain	29.9 mm (1.2 in)	20.9 mm (0.8 in)	28 years	35 of 100 (Notable)
21 December 1927	Petropavlovsk-Kamchatskij, RU	daily rain	29.9 mm (1.2 in)	20.9 mm (0.8 in)	28 years	35 of 100 (Notable)
21 December 1927	Ashwell, AU	daily rain	52.8 mm (2.1 in)	35.5 mm (1.4 in)	18 years	33 of 100 (Routine)
21 December 1927	Plauen, DE	daily snow depth	19.0 cm (7.5 in)	11.0 cm (4.3 in)	27 years	33 of 100 (Routine)
21 December 1927	Wien, AT	monthly low min	-20.7 C (-5.3 F)	0.5 C (0.9 F)	48 years	32 of 100 (Routine)
21 December 1927	Hvar, HR	daily low min	-3.0 C (26.6 F)	5.4 C (9.7 F)	39 years	32 of 100 (Routine)
21 December 1927	Praha-Klementinum, CZ	daily low min	-20.4 C (-4.7 F)	2.3 C (4.1 F)	56 years	31 of 100 (Routine)
21 December 1927	Berlin-Dahlem, DE	monthly low min	-19.4 C (-2.9 F)	0.6 C (1.1 F)	48 years	30 of 100 (Routine)
21 December 1927	Mundoolin, AU	daily rain	38.9 mm (1.5 in)	28.7 mm (1.1 in)	29 years	29 of 100 (Routine)
21 December 1927	Gorlitz, DE	daily low min	-22.1 C (-7.8 F)	7.6 C (13.7 F)	27 years	29 of 100 (Routine)
21 December 1927	Braunschweig (T.H.), DE	daily low min	-18.8 C (-1.8 F)	8.1 C (14.6 F)	27 years	29 of 100 (Routine)
21 December 1927	Plauen, DE	all-time low min	-26.0 C (-14.8 F)	0.5 C (0.9 F)	10 years	28 of 100 (Routine)
21 December 1927	Gatton Allan Street, AU	daily rain	70.4 mm (2.8 in)	23.9 mm (0.9 in)	31 years	27 of 100 (Routine)
21 December 1927	Killarney Post Office, AU	daily rain	38.1 mm (1.5 in)	21.8 mm (0.9 in)	14 years	26 of 100 (Routine)
21 December 1927	McDonnell Station, AU	daily rain	78.7 mm (3.1 in)	34.8 mm (1.4 in)	8 years	24 of 100 (Routine)
21 December 1927	Llanrheidol Station, AU	daily rain	32.3 mm (1.3 in)	26.2 mm (1.0 in)	8 years	24 of 100 (Routine)
21 December 1927	Bremen-Seefahrtschule, DE	monthly low min	-16.0 C (3.2 F)	0.1 C (0.2 F)	36 years	24 of 100 (Routine)
21 December 1927	Hamburg Fuhlsbuettel, DE	daily low max	-9.6 C (14.7 F)	7.7 C (13.9 F)	4 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 1927

Records set or tied on this calendar date in each year from 1793 to 1927. 1927 had 147 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 1927-12-21: 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	116
20 to 40	12
40 to 60	1
60 to 80	0
80 to 100	0
100 to 120	2