Weather Records on 11 December 1911

49 weather records were set or tied worldwide on 11 December 1911. Highest significance: Sydney (Observatory Hill), AU.

Key Facts for 11 December 1911

On 11 December 1911, 49 weather records were set or tied at long-record stations worldwide.
42 were record highs and 1 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 9 monthly and 40 daily.
Sydney (Observatory Hill) set a daily record high maximum temperature of 38.3 C (100.9 F) on 11 December 1911.
Across 154 earlier years (1796 to 2025) the same calendar date averaged 476 records.

Record Map

49 stations

49 station records on 11 December 1911 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 December 1911: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sydney (Observatory Hill)	Australia	Record high maximum temperature	38.3 C (100.9 F)	42 of 100 (Notable)
Glenthompson (Brie Brie)	Australia	Record daily precipitation	36.6 mm (1.4 in)	41 of 100 (Notable)
Toronto	Canada	Record high minimum temperature	10.6 C (51.1 F)	37 of 100 (Notable)
Berrybank	Australia	Record daily precipitation	36.8 mm (1.4 in)	34 of 100 (Routine)
Bacchus Marsh	Australia	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Concord	United States	Record high maximum temperature	17.8 C (64.0 F)	23 of 100 (Routine)
Welland	Canada	Record high minimum temperature	10.0 C (50.0 F)	22 of 100 (Routine)
Quebec	Canada	Record high minimum temperature	2.2 C (36.0 F)	21 of 100 (Routine)
Swan Hill (Murray Downs)	Australia	Record daily precipitation	19.1 mm (0.8 in)	19 of 100 (Routine)
Hamilton	Canada	Record high minimum temperature	11.7 C (53.1 F)	19 of 100 (Routine)
Lindsay	Canada	Record high minimum temperature	8.9 C (48.0 F)	19 of 100 (Routine)
Woodstock	Canada	Record high minimum temperature	9.4 C (48.9 F)	14 of 100 (Routine)
Lakefield	Canada	Record high minimum temperature	6.7 C (44.1 F)	14 of 100 (Routine)
Pointe Au Pere	Canada	Record high maximum temperature	7.8 C (46.0 F)	14 of 100 (Routine)
Pointe Au Pere	Canada	Record high minimum temperature	0.6 C (33.1 F)	14 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record high minimum temperature	14.0 C (57.2 F)	13 of 100 (Routine)
Stonecliffe	Canada	Record high maximum temperature	8.9 C (48.0 F)	13 of 100 (Routine)
Peterborough	Canada	Record high maximum temperature	11.1 C (52.0 F)	13 of 100 (Routine)
Stonecliffe	Canada	Record high minimum temperature	1.1 C (34.0 F)	12 of 100 (Routine)
Toronto	Canada	Record high maximum temperature	12.2 C (54.0 F)	12 of 100 (Routine)
Quebec	Canada	Record high maximum temperature	7.8 C (46.0 F)	12 of 100 (Routine)
Saint John	Canada	Record high maximum temperature	11.1 C (52.0 F)	12 of 100 (Routine)
Toledo Blade	United States	Record daily precipitation	19.6 mm (0.8 in)	12 of 100 (Routine)
Windsor Riverside	Canada	Record high maximum temperature	13.3 C (55.9 F)	11 of 100 (Routine)
Montreal McGill	Canada	Record high maximum temperature	11.1 C (52.0 F)	11 of 100 (Routine)
Montreal McGill	Canada	Record high minimum temperature	3.9 C (39.0 F)	11 of 100 (Routine)
Chattanooga Wb City	United States	Record high minimum temperature	13.9 C (57.0 F)	11 of 100 (Routine)
Stratford	Canada	Record high minimum temperature	6.7 C (44.1 F)	10 of 100 (Routine)
Lindsay	Canada	Record high maximum temperature	11.1 C (52.0 F)	10 of 100 (Routine)
Welland	Canada	Record high maximum temperature	13.3 C (55.9 F)	9 of 100 (Routine)
Woodstock	Canada	Record high maximum temperature	13.3 C (55.9 F)	9 of 100 (Routine)
Jerilderie (Coree STN)	Australia	Record daily precipitation	3.3 mm (0.13 in)	8 of 100 (Routine)
Beatrice	Canada	Record high maximum temperature	10.6 C (51.1 F)	8 of 100 (Routine)
Parry Sound	Canada	Record high minimum temperature	5.0 C (41.0 F)	8 of 100 (Routine)
Peterborough	Canada	Record high minimum temperature	4.4 C (39.9 F)	8 of 100 (Routine)
Beatrice	Canada	Record high minimum temperature	3.3 C (37.9 F)	7 of 100 (Routine)
Port Dover	Canada	Record high maximum temperature	11.1 C (52.0 F)	7 of 100 (Routine)
Stratford	Canada	Record high maximum temperature	12.2 C (54.0 F)	7 of 100 (Routine)
Portland	United States	Record high maximum temperature	13.3 C (55.9 F)	7 of 100 (Routine)
Trenton 2	United States	Record high maximum temperature	18.3 C (64.9 F)	7 of 100 (Routine)
Brantford	Canada	Record high maximum temperature	13.3 C (55.9 F)	6 of 100 (Routine)
Kingston Queens U	Canada	Record high minimum temperature	6.7 C (44.1 F)	4 of 100 (Routine)
Barrie	Canada	Record high minimum temperature	6.7 C (44.1 F)	4 of 100 (Routine)
Fredericton Unb	Canada	Record high maximum temperature	11.7 C (53.1 F)	3 of 100 (Routine)
Santa Fe	United States	Record low maximum temperature	-3.9 C (25.0 F)	3 of 100 (Routine)
Montgomery Wb City	United States	Record high maximum temperature	23.9 C (75.0 F)	2 of 100 (Routine)
Atlantic City Marina	United States	Record high maximum temperature	15.6 C (60.1 F)	2 of 100 (Routine)
Southampton	Canada	Record high maximum temperature	12.2 C (54.0 F)	1 of 100 (Routine)
Atlantic City Marina	United States	Record high minimum temperature	8.9 C (48.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

49 records

Records set or tied on 11 December 1911 by type: Highest daily maximum 23, Lowest daily maximum 1, Highest daily minimum 19, Heaviest daily rainfall 6.

Records on 11 December 1911 by type
Record type	Records
Highest daily maximum	23
Lowest daily maximum	1
Highest daily minimum	19
Lowest daily minimum	0
Heaviest daily rainfall	6
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 11 December 1911 by timescale: all-time 0, monthly 9, daily 40.

How Much Records Were Beaten By

41 broken records

Margins by which the 41 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 21.9. Ties are not counted.

Top 20 by Significance

11 December 1911

Top 20 records on 11 December 1911 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 December 1911	Sydney (Observatory Hill), AU	daily high max	38.3 C (100.9 F)	8.6 C (15.5 F)	46 years	42 of 100 (Notable)
11 December 1911	Glenthompson (Brie Brie), AU	daily rain	36.6 mm (1.4 in)	21.9 mm (0.9 in)	19 years	41 of 100 (Notable)
11 December 1911	Toronto, CA	monthly high min	10.6 C (51.1 F)	3.4 C (6.1 F)	50 years	37 of 100 (Notable)
11 December 1911	Berrybank, AU	daily rain	36.8 mm (1.4 in)	15.2 mm (0.6 in)	26 years	34 of 100 (Routine)
11 December 1911	Bacchus Marsh, AU	daily rain	25.4 mm (1.0 in)	19.8 mm (0.8 in)	19 years	31 of 100 (Routine)
11 December 1911	Concord, US	monthly high max	17.8 C (64.0 F)	0.6 C (1.1 F)	29 years	23 of 100 (Routine)
11 December 1911	Welland, CA	monthly high min	10.0 C (50.0 F)	2.8 C (5.0 F)	14 years	22 of 100 (Routine)
11 December 1911	Quebec, CA	monthly high min	2.2 C (36.0 F)	0.5 C (0.9 F)	26 years	21 of 100 (Routine)
11 December 1911	Swan Hill (Murray Downs), AU	daily rain	19.1 mm (0.8 in)	12.2 mm (0.5 in)	8 years	19 of 100 (Routine)
11 December 1911	Hamilton, CA	monthly high min	11.7 C (53.1 F)	0.6 C (1.1 F)	13 years	19 of 100 (Routine)
11 December 1911	Lindsay, CA	monthly high min	8.9 C (48.0 F)	1.7 C (3.1 F)	15 years	19 of 100 (Routine)
11 December 1911	Woodstock, CA	daily high min	9.4 C (48.9 F)	5.0 C (9.0 F)	11 years	14 of 100 (Routine)
11 December 1911	Lakefield, CA	monthly high min	6.7 C (44.1 F)	1.1 C (2.0 F)	0 years	14 of 100 (Routine)
11 December 1911	Pointe Au Pere, CA	daily high max	7.8 C (46.0 F)	1.7 C (3.1 F)	32 years	14 of 100 (Routine)
11 December 1911	Pointe Au Pere, CA	daily high min	0.6 C (33.1 F)	1.7 C (3.1 F)	32 years	14 of 100 (Routine)
11 December 1911	Oran-Hopital Militaire, DZ	daily high min	14.0 C (57.2 F)	1.0 C (1.8 F)	13 years	13 of 100 (Routine)
11 December 1911	Stonecliffe, CA	daily high max	8.9 C (48.0 F)	3.9 C (7.0 F)	19 years	13 of 100 (Routine)
11 December 1911	Peterborough, CA	daily high max	11.1 C (52.0 F)	0.5 C (0.9 F)	31 years	13 of 100 (Routine)
11 December 1911	Stonecliffe, CA	daily high min	1.1 C (34.0 F)	2.2 C (4.0 F)	24 years	12 of 100 (Routine)
11 December 1911	Toronto, CA	daily high max	12.2 C (54.0 F)	0.5 C (0.9 F)	13 years	12 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

1796 to 1911

Records set or tied on this calendar date in each year from 1796 to 1911. 1911 had 49 records.

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

Records on 12-11 in each year
Year	Records
1796	2
1808	2
1815	2
1825	2
1841	1
1852	1
1855	2
1862	1
1868	1
1869	3
1871	4
1872	1
1876	2
1877	1
1878	2
1879	4
1880	2
1882	3
1886	1
1887	1
1889	1
1891	3
1892	2
1893	3
1894	1
1895	4
1897	2
1898	14
1899	5
1900	4
1901	5
1902	6
1903	2
1904	28
1905	15
1906	12
1907	30
1908	18
1909	7
1910	31
1911	49
1912	36
1913	8
1914	13
1915	93
1916	55
1917	103
1918	32
1919	40
1920	58
1921	49
1922	143
1923	88
1924	84
1925	81
1926	77
1927	232
1928	111
1929	345
1930	72
1931	762
1932	696
1933	260
1934	480
1935	290
1936	357
1937	839
1938	231
1939	626
1940	302
1941	353
1942	263
1943	196
1944	407
1945	234
1946	717
1947	342
1948	153
1949	1,201
1950	463
1951	261
1952	923
1953	157
1954	492
1955	312
1956	300
1957	517
1958	985
1959	322
1960	746
1961	1,300
1962	723
1963	604
1964	542
1965	1,216
1966	525
1967	945
1968	543
1969	587
1970	617
1971	900
1972	1,514
1973	334
1974	313
1975	454
1976	380
1977	1,182
1978	678
1979	847
1980	522
1981	949
1982	657
1983	971
1984	1,013
1985	1,471
1986	561
1987	639
1988	850
1989	584
1990	747
1991	1,102
1992	1,357
1993	749
1994	1,243
1995	1,837
1996	1,307
1997	1,203
1998	1,012
1999	769
2000	1,584
2001	626
2002	1,139
2003	646
2004	1,166
2005	816
2006	858
2007	1,613
2008	1,312
2009	1,091
2010	1,284
2011	416
2012	618
2013	737
2014	893
2015	1,183
2016	489
2017	670
2018	353
2019	442
2020	517
2021	1,175
2022	679
2023	814
2024	539
2025	1,691

Download the Data

Data for records on 1911-12-11: 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 5	35
5 to 10	2
10 to 15	1
15 to 20	2
20 to 25	1