Weather Records on 7 December 1917

52 weather records were set or tied worldwide on 7 December 1917. Highest significance: Halifax, CA.

Key Facts for 7 December 1917

On 7 December 1917, 52 weather records were set or tied at long-record stations worldwide.
10 were record highs and 17 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 52 daily.
Halifax set a daily record snowfall of 40.6 cm (16.0 in) on 7 December 1917.
Across 157 earlier years (1801 to 2025) the same calendar date averaged 497 records.

Record Map

52 stations

52 station records on 7 December 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 7 December 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Halifax	Canada	Record daily snowfall	40.6 cm (16.0 in)	44 of 100 (Notable)
Little Rock St Capitol	United States	Record daily snowfall	6.4 cm (2.5 in)	31 of 100 (Routine)
Kologha (Bos)	South Africa	Record daily precipitation	37.1 mm (1.5 in)	25 of 100 (Routine)
Lady Frere (Tnk)	South Africa	Record daily precipitation	35.6 mm (1.4 in)	24 of 100 (Routine)
Bathurst Gaol	Australia	Record low minimum temperature	2.2 C (36.0 F)	22 of 100 (Routine)
Novorossijsk	Russia	Record daily precipitation	17.7 mm (0.7 in)	20 of 100 (Routine)
Waverley	South Africa	Record daily precipitation	21.8 mm (0.9 in)	20 of 100 (Routine)
Ulan-Ude	Russia	Record daily precipitation	5.5 mm (0.22 in)	20 of 100 (Routine)
Hillston (Cowl Cowl)	Australia	Record daily precipitation	2.0 mm (0.08 in)	19 of 100 (Routine)
Denman (Palace Street)	Australia	Record daily precipitation	29.2 mm (1.1 in)	18 of 100 (Routine)
Arhangelsk	Russia	Record daily precipitation	7.6 mm (0.30 in)	18 of 100 (Routine)
Peddie (Mag)	South Africa	Record daily precipitation	12.7 mm (0.5 in)	17 of 100 (Routine)
Warnertown (Willow Lodge)	Australia	Record daily precipitation	31.2 mm (1.2 in)	16 of 100 (Routine)
Charlottetown	Canada	Record daily snowfall	7.6 cm (3.0 in)	15 of 100 (Routine)
Lakefield	Canada	Record low maximum temperature	-8.3 C (17.1 F)	14 of 100 (Routine)
Isidinge (Bos)	South Africa	Record daily precipitation	19.6 mm (0.8 in)	14 of 100 (Routine)
Pirie (Bos)	South Africa	Record daily precipitation	22.9 mm (0.9 in)	14 of 100 (Routine)
Ida	South Africa	Record daily precipitation	21.8 mm (0.9 in)	14 of 100 (Routine)
White Cliffs (Yancannia)	Australia	Record daily precipitation	13.5 mm (0.5 in)	13 of 100 (Routine)
Irkutsk	Russia	Record high minimum temperature	-6.5 C (20.3 F)	13 of 100 (Routine)
Dordrecht - Tnk 14	South Africa	Record daily precipitation	22.1 mm (0.9 in)	13 of 100 (Routine)
Wandin (Yallock)	Australia	Record daily precipitation	16.0 mm (0.6 in)	11 of 100 (Routine)
Bird Rocks	Canada	Record daily snowfall	15.2 cm (6.0 in)	11 of 100 (Routine)
Warraweena	Australia	Record daily precipitation	3.3 mm (0.13 in)	10 of 100 (Routine)
East London -Signal STN	South Africa	Record daily precipitation	20.3 mm (0.8 in)	10 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record high maximum temperature	5.4 C (41.7 F)	10 of 100 (Routine)
Little Rock St Capitol	United States	Record low maximum temperature	-0.6 C (30.9 F)	10 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record low maximum temperature	-22.2 C (-8.0 F)	10 of 100 (Routine)
Swift Current	Canada	Record low minimum temperature	-32.2 C (-26.0 F)	9 of 100 (Routine)
Vanersborg	Sweden	Record high minimum temperature	5.0 C (41.0 F)	9 of 100 (Routine)
Kergunyah South	Australia	Record daily precipitation	8.6 mm (0.34 in)	8 of 100 (Routine)
Qu'appelle	Canada	Record low maximum temperature	-25.0 C (-13.0 F)	8 of 100 (Routine)
Prince Albert	Canada	Record low maximum temperature	-26.1 C (-15.0 F)	8 of 100 (Routine)
Stony Mountain	Canada	Record low minimum temperature	-34.4 C (-29.9 F)	8 of 100 (Routine)
Kieskamahoek (Pol)	South Africa	Record daily precipitation	18.3 mm (0.7 in)	8 of 100 (Routine)
Orebro	Sweden	Record high minimum temperature	5.5 C (41.9 F)	8 of 100 (Routine)
Northfield	United States	Record low minimum temperature	-26.1 C (-15.0 F)	8 of 100 (Routine)
Gavle	Sweden	Record high minimum temperature	2.0 C (35.6 F)	7 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record low minimum temperature	-26.1 C (-15.0 F)	7 of 100 (Routine)
Lincoln UNIV Pwr Plt	United States	Record low minimum temperature	-22.8 C (-9.0 F)	5 of 100 (Routine)
Buffelsfontein 14	South Africa	Record daily precipitation	6.4 mm (0.25 in)	4 of 100 (Routine)
Galway	Ireland	Record high maximum temperature	12.8 C (55.0 F)	3 of 100 (Routine)
Jonkoping	Sweden	Record high maximum temperature	8.0 C (46.4 F)	2 of 100 (Routine)
Sveg	Sweden	Record high maximum temperature	4.0 C (39.2 F)	2 of 100 (Routine)
Houston Wb City	United States	Record high maximum temperature	25.0 C (77.0 F)	2 of 100 (Routine)
Wagga Wagga (Kooringal)	Australia	Record low minimum temperature	8.3 C (46.9 F)	1 of 100 (Routine)
St Albans	Canada	Record low maximum temperature	-19.4 C (-2.9 F)	1 of 100 (Routine)
Nicosia	Cyprus	Record low maximum temperature	12.2 C (54.0 F)	1 of 100 (Routine)
Hvar	Croatia	Record low minimum temperature	0.5 C (32.9 F)	1 of 100 (Routine)
Simferopol	Ukraine	Record low minimum temperature	-9.1 C (15.6 F)	1 of 100 (Routine)
Northfield	United States	Record low maximum temperature	-10.6 C (12.9 F)	1 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record high minimum temperature	0.5 C (32.9 F)	0 of 100 (Routine)

Counts by Type and Timescale

52 records

Records set or tied on 7 December 1917 by type: Highest daily maximum 5, Lowest daily maximum 8, Highest daily minimum 5, Lowest daily minimum 9, Heaviest daily rainfall 21, Heaviest daily snowfall 4.

Records on 7 December 1917 by type
Record type	Records
Highest daily maximum	5
Lowest daily maximum	8
Highest daily minimum	5
Lowest daily minimum	9
Heaviest daily rainfall	21
Heaviest daily snowfall	4
Deepest snow cover	0

Records on 7 December 1917 by timescale: all-time 0, monthly 0, daily 52.

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 243.0. Ties are not counted.

Top 20 by Significance

7 December 1917

Top 20 records on 7 December 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 December 1917	Halifax, CA	daily snowfall	40.6 cm (16.0 in)	24.3 cm (9.6 in)	7 years	44 of 100 (Notable)
7 December 1917	Little Rock St Capitol, US	daily snowfall	6.4 cm (2.5 in)	6.4 cm (2.5 in)	41 years	31 of 100 (Routine)
7 December 1917	Kologha (Bos), ZA	daily rain	37.1 mm (1.5 in)	18.3 mm (0.7 in)	26 years	25 of 100 (Routine)
7 December 1917	Lady Frere (Tnk), ZA	daily rain	35.6 mm (1.4 in)	25.4 mm (1.0 in)	4 years	24 of 100 (Routine)
7 December 1917	Bathurst Gaol, AU	daily low min	2.2 C (36.0 F)	2.1 C (3.8 F)	39 years	22 of 100 (Routine)
7 December 1917	Novorossijsk, RU	daily rain	17.7 mm (0.7 in)	9.8 mm (0.39 in)	35 years	20 of 100 (Routine)
7 December 1917	Waverley, ZA	daily rain	21.8 mm (0.9 in)	15.4 mm (0.6 in)	11 years	20 of 100 (Routine)
7 December 1917	Ulan-Ude, RU	daily rain	5.5 mm (0.22 in)	3.3 mm (0.13 in)	4 years	20 of 100 (Routine)
7 December 1917	Hillston (Cowl Cowl), AU	daily rain	2.0 mm (0.08 in)	2.0 mm (0.08 in)	45 years	19 of 100 (Routine)
7 December 1917	Denman (Palace Street), AU	daily rain	29.2 mm (1.1 in)	17.0 mm (0.7 in)	22 years	18 of 100 (Routine)
7 December 1917	Arhangelsk, RU	daily rain	7.6 mm (0.30 in)	2.6 mm (0.10 in)	8 years	18 of 100 (Routine)
7 December 1917	Peddie (Mag), ZA	daily rain	12.7 mm (0.5 in)	6.3 mm (0.25 in)	26 years	17 of 100 (Routine)
7 December 1917	Warnertown (Willow Lodge), AU	daily rain	31.2 mm (1.2 in)	5.8 mm (0.23 in)	21 years	16 of 100 (Routine)
7 December 1917	Charlottetown, CA	daily snowfall	7.6 cm (3.0 in)	2.0 cm (0.8 in)	26 years	15 of 100 (Routine)
7 December 1917	Lakefield, CA	daily low max	-8.3 C (17.1 F)	1.6 C (2.9 F)	31 years	14 of 100 (Routine)
7 December 1917	Isidinge (Bos), ZA	daily rain	19.6 mm (0.8 in)	6.9 mm (0.27 in)	20 years	14 of 100 (Routine)
7 December 1917	Pirie (Bos), ZA	daily rain	22.9 mm (0.9 in)	13.2 mm (0.5 in)	10 years	14 of 100 (Routine)
7 December 1917	Ida, ZA	daily rain	21.8 mm (0.9 in)	9.6 mm (0.38 in)	11 years	14 of 100 (Routine)
7 December 1917	White Cliffs (Yancannia), AU	daily rain	13.5 mm (0.5 in)	0.8 mm (0.03 in)	30 years	13 of 100 (Routine)
7 December 1917	Irkutsk, RU	daily high min	-6.5 C (20.3 F)	5.6 C (10.1 F)	10 years	13 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

1801 to 1917

Records set or tied on this calendar date in each year from 1801 to 1917. 1917 had 52 records.

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

Records on 12-07 in each year
Year	Records
1801	1
1805	1
1812	2
1815	1
1825	2
1832	1
1836	1
1839	1
1844	4
1848	3
1852	1
1856	3
1863	1
1866	1
1868	5
1871	5
1875	6
1879	5
1881	1
1884	2
1885	1
1889	1
1890	2
1891	3
1892	1
1893	5
1894	1
1895	1
1896	8
1897	4
1898	10
1899	3
1900	2
1901	9
1902	16
1903	9
1904	7
1905	3
1906	21
1907	4
1908	24
1909	21
1910	26
1911	7
1912	21
1913	19
1914	32
1915	53
1916	36
1917	52
1918	30
1919	38
1920	81
1921	39
1922	272
1923	128
1924	374
1925	119
1926	372
1927	404
1928	105
1929	146
1930	534
1931	180
1932	555
1933	130
1934	274
1935	270
1936	602
1937	890
1938	279
1939	780
1940	145
1941	139
1942	526
1943	199
1944	357
1945	240
1946	855
1947	240
1948	320
1949	187
1950	1,472
1951	1,751
1952	447
1953	673
1954	445
1955	195
1956	1,358
1957	589
1958	831
1959	539
1960	561
1961	206
1962	642
1963	436
1964	467
1965	476
1966	1,047
1967	386
1968	461
1969	952
1970	724
1971	854
1972	2,239
1973	448
1974	508
1975	404
1976	1,037
1977	1,369
1978	1,882
1979	827
1980	1,314
1981	896
1982	542
1983	957
1984	957
1985	922
1986	1,126
1987	866
1988	582
1989	675
1990	744
1991	698
1992	906
1993	544
1994	1,772
1995	912
1996	1,152
1997	818
1998	2,384
1999	674
2000	1,085
2001	743
2002	917
2003	1,184
2004	1,096
2005	1,433
2006	1,246
2007	1,402
2008	833
2009	972
2010	1,405
2011	1,507
2012	643
2013	2,119
2014	479
2015	1,079
2016	389
2017	508
2018	558
2019	447
2020	597
2021	547
2022	579
2023	952
2024	712
2025	665

Download the Data

Data for records on 1917-12-07: 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	39
50 to 100	1
100 to 150	0
150 to 200	0
200 to 250	1