Weather Records on 1 December 1917

52 weather records were set or tied worldwide on 1 December 1917. Highest significance: Maryborough, AU.

Key Facts for 1 December 1917

On 1 December 1917, 52 weather records were set or tied at long-record stations worldwide.
3 were record highs and 0 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 5 monthly and 47 daily.
Maryborough set a daily record precipitation of 51.3 mm (2.0 in) on 1 December 1917.
Across 162 earlier years (1797 to 2025) the same calendar date averaged 486 records.

Record Map

52 stations

52 station records on 1 December 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 December 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Maryborough	Australia	Record daily precipitation	51.3 mm (2.0 in)	36 of 100 (Notable)
Leominster	United States	Record daily precipitation	37.6 mm (1.5 in)	36 of 100 (Notable)
Beechworth Composite	Australia	Record daily precipitation	54.1 mm (2.1 in)	34 of 100 (Routine)
Blue Hill Coop	United States	Record daily precipitation	37.1 mm (1.5 in)	34 of 100 (Routine)
Bustard Head Lighthouse	Australia	Record daily precipitation	208.3 mm (8.2 in)	28 of 100 (Routine)
Innsbruck	Austria	Record high maximum temperature	15.6 C (60.1 F)	28 of 100 (Routine)
Middletown 4 W	United States	Record daily precipitation	31.8 mm (1.3 in)	28 of 100 (Routine)
Ny City Cntrl Park	United States	Record daily precipitation	28.4 mm (1.1 in)	28 of 100 (Routine)
Setauket Strong	United States	Record daily precipitation	26.7 mm (1.1 in)	25 of 100 (Routine)
Qu'appelle	Canada	Record daily snowfall	7.6 cm (3.0 in)	24 of 100 (Routine)
Quebec	Canada	Record daily snowfall	14.2 cm (5.6 in)	24 of 100 (Routine)
Sandgate Post Office	Australia	Record daily precipitation	114.6 mm (4.5 in)	23 of 100 (Routine)
Eugowra Post Office	Australia	Record daily precipitation	37.6 mm (1.5 in)	23 of 100 (Routine)
Pittsworth	Australia	Record daily precipitation	49.0 mm (1.9 in)	22 of 100 (Routine)
Minnedosa	Canada	Record daily snowfall	7.6 cm (3.0 in)	21 of 100 (Routine)
Concordia ASOS	United States	Record high maximum temperature	22.8 C (73.0 F)	21 of 100 (Routine)
Sarna	Sweden	Record daily precipitation	23.0 mm (0.9 in)	20 of 100 (Routine)
Kazalinsk	Kazakhstan	Record daily precipitation	17.6 mm (0.7 in)	20 of 100 (Routine)
Ekaterinburg	Russia	Record daily precipitation	19.2 mm (0.8 in)	20 of 100 (Routine)
Bjuraker	Sweden	Record daily precipitation	23.0 mm (0.9 in)	20 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record daily precipitation	15.2 mm (0.6 in)	20 of 100 (Routine)
Hanover	United States	Record daily precipitation	22.9 mm (0.9 in)	20 of 100 (Routine)
Sveg	Sweden	Record daily precipitation	21.9 mm (0.9 in)	20 of 100 (Routine)
World Trade Ctr	United States	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Qu'appelle	Canada	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Minnedosa	Canada	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Sandvig	Denmark	Record daily precipitation	8.5 mm (0.33 in)	20 of 100 (Routine)
Moorestown 4 E	United States	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Marrar (Centenary Drive)	Australia	Record daily precipitation	29.7 mm (1.2 in)	19 of 100 (Routine)
Portland	United States	Record daily precipitation	37.1 mm (1.5 in)	19 of 100 (Routine)
Paterson	United States	Record daily precipitation	30.5 mm (1.2 in)	19 of 100 (Routine)
Northfield	United States	Record daily precipitation	10.2 mm (0.4 in)	19 of 100 (Routine)
Karumba Pilot Station	Australia	Record daily precipitation	36.3 mm (1.4 in)	17 of 100 (Routine)
Kei Road (Pol)	South Africa	Record daily precipitation	31.2 mm (1.2 in)	16 of 100 (Routine)
Lake Cochituate	United States	Record daily precipitation	23.6 mm (0.9 in)	16 of 100 (Routine)
Somerville 4 NW	United States	Record daily precipitation	26.9 mm (1.1 in)	16 of 100 (Routine)
Hill End Post Office	Australia	Record daily precipitation	22.6 mm (0.9 in)	15 of 100 (Routine)
Tobolsk	Russia	Record daily precipitation	3.4 mm (0.13 in)	14 of 100 (Routine)
Tbilisi	Georgia	Record high minimum temperature	9.7 C (49.5 F)	13 of 100 (Routine)
Warrangong	Australia	Record daily precipitation	27.4 mm (1.1 in)	12 of 100 (Routine)
Rylstone (Ilford Rd)	Australia	Record daily precipitation	30.5 mm (1.2 in)	11 of 100 (Routine)
Boxwood	Australia	Record daily precipitation	12.4 mm (0.5 in)	11 of 100 (Routine)
Buchan	Australia	Record daily precipitation	25.4 mm (1.0 in)	11 of 100 (Routine)
Bowen Post Office	Australia	Record daily precipitation	31.2 mm (1.2 in)	10 of 100 (Routine)
Quebec	Canada	Record daily precipitation	14.2 mm (0.6 in)	10 of 100 (Routine)
Prince Albert	Canada	Record daily precipitation	5.1 mm (0.20 in)	9 of 100 (Routine)
Prince Albert	Canada	Record daily snowfall	5.1 cm (2.0 in)	9 of 100 (Routine)
Rapid City Forrest	Canada	Record daily precipitation	10.2 mm (0.4 in)	9 of 100 (Routine)
Rapid City Forrest	Canada	Record daily snowfall	10.2 cm (4.0 in)	9 of 100 (Routine)
Briagolong	Australia	Record daily precipitation	26.9 mm (1.1 in)	7 of 100 (Routine)
Valencia Creek (Bulgar Park)	Australia	Record daily precipitation	25.4 mm (1.0 in)	6 of 100 (Routine)
Bungendore (Gidleigh)	Australia	Record daily precipitation	22.4 mm (0.9 in)	5 of 100 (Routine)

Counts by Type and Timescale

52 records

Records set or tied on 1 December 1917 by type: Highest daily maximum 2, Highest daily minimum 1, Heaviest daily rainfall 44, Heaviest daily snowfall 5.

Records on 1 December 1917 by type
Record type	Records
Highest daily maximum	2
Lowest daily maximum	0
Highest daily minimum	1
Lowest daily minimum	0
Heaviest daily rainfall	44
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 1 December 1917 by timescale: all-time 0, monthly 5, daily 47.

How Much Records Were Beaten By

52 broken records

Margins by which the 52 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 66.0. Ties are not counted.

Top 20 by Significance

1 December 1917

Top 20 records on 1 December 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 December 1917	Maryborough, AU	daily rain	51.3 mm (2.0 in)	35.3 mm (1.4 in)	22 years	36 of 100 (Notable)
1 December 1917	Leominster, US	daily rain	37.6 mm (1.5 in)	30.7 mm (1.2 in)	23 years	36 of 100 (Notable)
1 December 1917	Beechworth Composite, AU	daily rain	54.1 mm (2.1 in)	20.6 mm (0.8 in)	29 years	34 of 100 (Routine)
1 December 1917	Blue Hill Coop, US	daily rain	37.1 mm (1.5 in)	26.2 mm (1.0 in)	23 years	34 of 100 (Routine)
1 December 1917	Bustard Head Lighthouse, AU	monthly rain	208.3 mm (8.2 in)	20.8 mm (0.8 in)	18 years	28 of 100 (Routine)
1 December 1917	Innsbruck, AT	daily high max	15.6 C (60.1 F)	6.6 C (11.9 F)	31 years	28 of 100 (Routine)
1 December 1917	Middletown 4 W, US	daily rain	31.8 mm (1.3 in)	15.3 mm (0.6 in)	36 years	28 of 100 (Routine)
1 December 1917	Ny City Cntrl Park, US	daily rain	28.4 mm (1.1 in)	15.4 mm (0.6 in)	36 years	28 of 100 (Routine)
1 December 1917	Setauket Strong, US	daily rain	26.7 mm (1.1 in)	20.9 mm (0.8 in)	22 years	25 of 100 (Routine)
1 December 1917	Qu'appelle, CA	daily snowfall	7.6 cm (3.0 in)	5.1 cm (2.0 in)	12 years	24 of 100 (Routine)
1 December 1917	Quebec, CA	daily snowfall	14.2 cm (5.6 in)	6.6 cm (2.6 in)	30 years	24 of 100 (Routine)
1 December 1917	Sandgate Post Office, AU	daily rain	114.6 mm (4.5 in)	38.4 mm (1.5 in)	0 years	23 of 100 (Routine)
1 December 1917	Eugowra Post Office, AU	daily rain	37.6 mm (1.5 in)	16.8 mm (0.7 in)	28 years	23 of 100 (Routine)
1 December 1917	Pittsworth, AU	daily rain	49.0 mm (1.9 in)	13.4 mm (0.5 in)	28 years	22 of 100 (Routine)
1 December 1917	Minnedosa, CA	daily snowfall	7.6 cm (3.0 in)	3.8 cm (1.5 in)	12 years	21 of 100 (Routine)
1 December 1917	Concordia ASOS, US	monthly high max	22.8 C (73.0 F)	0.6 C (1.1 F)	27 years	21 of 100 (Routine)
1 December 1917	Sarna, SE	monthly rain	23.0 mm (0.9 in)	9.6 mm (0.38 in)	30 years	20 of 100 (Routine)
1 December 1917	Kazalinsk, KZ	daily rain	17.6 mm (0.7 in)	15.6 mm (0.6 in)	23 years	20 of 100 (Routine)
1 December 1917	Ekaterinburg, RU	monthly rain	19.2 mm (0.8 in)	3.5 mm (0.14 in)	15 years	20 of 100 (Routine)
1 December 1917	Bjuraker, SE	daily rain	23.0 mm (0.9 in)	9.0 mm (0.35 in)	4 years	20 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

1797 to 1917

Records set or tied on this calendar date in each year from 1797 to 1917. 1917 had 52 records.

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

Records on 12-01 in each year
Year	Records
1797	1
1805	1
1807	2
1810	1
1817	2
1821	1
1823	2
1831	1
1849	1
1856	3
1857	1
1858	1
1861	1
1863	1
1869	2
1871	1
1872	3
1873	6
1875	8
1876	4
1877	1
1879	7
1884	3
1885	3
1886	1
1887	2
1888	3
1889	2
1890	6
1891	1
1892	2
1893	1
1894	1
1895	4
1896	4
1897	10
1898	5
1899	4
1901	5
1902	7
1903	13
1904	4
1905	11
1906	3
1907	8
1908	40
1909	64
1910	39
1911	45
1912	37
1913	53
1914	142
1915	23
1916	29
1917	52
1918	32
1919	78
1920	192
1921	55
1922	85
1923	70
1924	135
1925	145
1926	115
1927	271
1928	85
1929	515
1930	128
1931	337
1932	383
1933	656
1934	667
1935	164
1936	433
1937	238
1938	159
1939	346
1940	300
1941	391
1942	424
1943	93
1944	478
1945	259
1946	224
1947	392
1948	252
1949	313
1950	437
1951	585
1952	762
1953	283
1954	308
1955	624
1956	338
1957	295
1958	531
1959	355
1960	258
1961	373
1962	1,073
1963	282
1964	1,181
1965	598
1966	995
1967	601
1968	883
1969	673
1970	1,299
1971	574
1972	843
1973	888
1974	1,339
1975	1,007
1976	1,294
1977	1,166
1978	777
1979	874
1980	1,019
1981	1,320
1982	1,759
1983	1,275
1984	513
1985	3,874
1986	803
1987	1,020
1988	538
1989	822
1990	514
1991	2,124
1992	552
1993	597
1994	717
1995	1,386
1996	1,448
1997	736
1998	1,698
1999	790
2000	777
2001	1,211
2002	637
2003	627
2004	1,033
2005	815
2006	2,866
2007	1,427
2008	879
2009	927
2010	1,991
2011	947
2012	1,027
2013	400
2014	677
2015	850
2016	384
2017	496
2018	807
2019	803
2020	567
2021	2,030
2022	584
2023	609
2024	636
2025	679

Download the Data

Data for records on 1917-12-01: 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 10	28
10 to 20	12
20 to 30	6
30 to 40	4
40 to 50	0
50 to 60	1
60 to 70	1