Weather Records on 12 December 1917

246 weather records were set or tied worldwide on 12 December 1917. Highest significance: Hallett, AU.

Key Facts for 12 December 1917

On 12 December 1917, 246 weather records were set or tied at long-record stations worldwide.
1 were record highs and 78 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 30 monthly and 215 daily.
Hallett set a monthly record daily precipitation of 50.8 mm (2.0 in) on 12 December 1917.
Across 153 earlier years (1796 to 2025) the same calendar date averaged 470 records.

Record Map

246 stations

246 station records on 12 December 1917 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 12 December 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Hallett	Australia	Record daily precipitation	50.8 mm (2.0 in)	62 of 100 (Major)
Wallaroo	Australia	Record daily precipitation	26.2 mm (1.0 in)	52 of 100 (Notable)
Jamestown	Australia	Record daily precipitation	48.0 mm (1.9 in)	51 of 100 (Notable)
Kadina	Australia	Record daily precipitation	26.7 mm (1.1 in)	51 of 100 (Notable)
Saddleworth	Australia	Record daily precipitation	55.4 mm (2.2 in)	51 of 100 (Notable)
Clare Post Office	Australia	Record daily precipitation	49.0 mm (1.9 in)	50 of 100 (Notable)
Hamley Bridge	Australia	Record daily precipitation	37.1 mm (1.5 in)	50 of 100 (Notable)
Port Elliot Caravan Park	Australia	Record daily precipitation	27.7 mm (1.1 in)	50 of 100 (Notable)
Port Elliott	Australia	Record daily precipitation	29.7 mm (1.2 in)	48 of 100 (Notable)
Farrell Flat	Australia	Record daily precipitation	50.0 mm (2.0 in)	46 of 100 (Notable)
Snowtown	Australia	Record daily precipitation	36.6 mm (1.4 in)	46 of 100 (Notable)
Dinby	Australia	Record daily precipitation	85.3 mm (3.4 in)	45 of 100 (Notable)
Hallett (Old Canowie)	Australia	Record daily precipitation	47.2 mm (1.9 in)	44 of 100 (Notable)
Mogil Mogil (Benimora)	Australia	Record daily precipitation	88.4 mm (3.5 in)	44 of 100 (Notable)
Yacka	Australia	Record daily precipitation	36.1 mm (1.4 in)	43 of 100 (Notable)
Stockport	Australia	Record daily precipitation	31.8 mm (1.3 in)	42 of 100 (Notable)
Wirrabara	Australia	Record daily precipitation	64.3 mm (2.5 in)	41 of 100 (Notable)
Marrabel	Australia	Record daily precipitation	50.8 mm (2.0 in)	40 of 100 (Notable)
Maitland (Weetulta)	Australia	Record daily precipitation	33.0 mm (1.3 in)	38 of 100 (Notable)
Goolwa Council Depot	Australia	Record daily precipitation	25.4 mm (1.0 in)	38 of 100 (Notable)
Balaklava	Australia	Record daily precipitation	46.0 mm (1.8 in)	37 of 100 (Notable)
Surat	Australia	Record daily precipitation	74.2 mm (2.9 in)	37 of 100 (Notable)
Collerina (Corrella)	Australia	Record daily precipitation	48.3 mm (1.9 in)	37 of 100 (Notable)
Georgetown	Australia	Record daily precipitation	32.3 mm (1.3 in)	36 of 100 (Notable)
Peterborough	Australia	Record daily precipitation	33.0 mm (1.3 in)	35 of 100 (Notable)
Auburn	Australia	Record daily precipitation	50.3 mm (2.0 in)	35 of 100 (Notable)
Glenariff	Australia	Record daily precipitation	44.2 mm (1.7 in)	35 of 100 (Notable)
Holbrook (Rsl)	Australia	Record daily precipitation	39.9 mm (1.6 in)	35 of 100 (Notable)
Narrandera (Brewarrana)	Australia	Record daily precipitation	50.8 mm (2.0 in)	35 of 100 (Notable)
Blyth	Australia	Record daily precipitation	38.6 mm (1.5 in)	33 of 100 (Routine)
Burra (Poonunda)	Australia	Record daily precipitation	25.1 mm (1.0 in)	33 of 100 (Routine)
Kapunda	Australia	Record daily precipitation	36.8 mm (1.4 in)	33 of 100 (Routine)
Tanunda	Australia	Record daily precipitation	27.9 mm (1.1 in)	33 of 100 (Routine)
Quantambone	Australia	Record daily precipitation	43.2 mm (1.7 in)	33 of 100 (Routine)
Stockwell	Australia	Record daily precipitation	28.4 mm (1.1 in)	32 of 100 (Routine)
Mount Oxley	Australia	Record daily precipitation	56.9 mm (2.2 in)	32 of 100 (Routine)
Condobolin (Borambil Park)	Australia	Record daily precipitation	38.1 mm (1.5 in)	32 of 100 (Routine)
Benerembah	Australia	Record daily precipitation	27.9 mm (1.1 in)	32 of 100 (Routine)
Collingrove	Australia	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)
Kapunda Reservoir	Australia	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Burra (Kooringa)	Australia	Record daily precipitation	32.3 mm (1.3 in)	30 of 100 (Routine)
Port Broughton	Australia	Record daily precipitation	26.9 mm (1.1 in)	30 of 100 (Routine)
Milang	Australia	Record daily precipitation	25.7 mm (1.0 in)	30 of 100 (Routine)
Leyburn Post Office	Australia	Record daily precipitation	79.2 mm (3.1 in)	30 of 100 (Routine)
Young Post Office	Australia	Record daily precipitation	40.6 mm (1.6 in)	30 of 100 (Routine)
Brinkworth (Bungaree)	Australia	Record daily precipitation	31.8 mm (1.3 in)	29 of 100 (Routine)
Round Hill	Australia	Record daily precipitation	30.7 mm (1.2 in)	29 of 100 (Routine)
Appila	Australia	Record daily precipitation	39.4 mm (1.6 in)	28 of 100 (Routine)
Inglewood Post Office	Australia	Record daily precipitation	67.6 mm (2.7 in)	28 of 100 (Routine)
Lila Lower	Australia	Record daily precipitation	42.2 mm (1.7 in)	28 of 100 (Routine)
Belaringar Station	Australia	Record daily precipitation	40.6 mm (1.6 in)	28 of 100 (Routine)
Bute (Ninnes)	Australia	Record daily precipitation	37.1 mm (1.5 in)	27 of 100 (Routine)
Brisbane Regional Office	Australia	Record low maximum temperature	21.3 C (70.3 F)	27 of 100 (Routine)
Emmaville (Strathbogie)	Australia	Record daily precipitation	38.6 mm (1.5 in)	26 of 100 (Routine)
Riverton	Australia	Record daily precipitation	55.4 mm (2.2 in)	25 of 100 (Routine)
Gladstone	Australia	Record daily precipitation	39.4 mm (1.6 in)	24 of 100 (Routine)
Terowie	Australia	Record daily precipitation	45.0 mm (1.8 in)	24 of 100 (Routine)
Angaston	Australia	Record daily precipitation	27.2 mm (1.1 in)	24 of 100 (Routine)
Stanthorpe Leslie Parade	Australia	Record daily precipitation	63.5 mm (2.5 in)	24 of 100 (Routine)
Fort Bourke	Australia	Record daily precipitation	40.6 mm (1.6 in)	24 of 100 (Routine)

Counts by Type and Timescale

246 records

Records set or tied on 12 December 1917 by type: Highest daily maximum 1, Lowest daily maximum 38, Lowest daily minimum 40, Heaviest daily rainfall 163, Heaviest daily snowfall 2, Deepest snow cover 2.

Records on 12 December 1917 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	38
Highest daily minimum	0
Lowest daily minimum	40
Heaviest daily rainfall	163
Heaviest daily snowfall	2
Deepest snow cover	2

Records on 12 December 1917 by timescale: all-time 1, monthly 30, daily 215.

How Much Records Were Beaten By

227 broken records

Margins by which the 227 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 57.1. Ties are not counted.

Top 20 by Significance

12 December 1917

Top 20 records on 12 December 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 December 1917	Hallett, AU	monthly rain	50.8 mm (2.0 in)	24.9 mm (1.0 in)	31 years	62 of 100 (Major)
12 December 1917	Wallaroo, AU	daily rain	26.2 mm (1.0 in)	22.1 mm (0.9 in)	25 years	52 of 100 (Notable)
12 December 1917	Jamestown, AU	daily rain	48.0 mm (1.9 in)	35.3 mm (1.4 in)	29 years	51 of 100 (Notable)
12 December 1917	Kadina, AU	daily rain	26.7 mm (1.1 in)	21.6 mm (0.9 in)	25 years	51 of 100 (Notable)
12 December 1917	Saddleworth, AU	daily rain	55.4 mm (2.2 in)	34.6 mm (1.4 in)	25 years	51 of 100 (Notable)
12 December 1917	Clare Post Office, AU	monthly rain	49.0 mm (1.9 in)	14.2 mm (0.6 in)	46 years	50 of 100 (Notable)
12 December 1917	Hamley Bridge, AU	daily rain	37.1 mm (1.5 in)	30.5 mm (1.2 in)	25 years	50 of 100 (Notable)
12 December 1917	Port Elliot Caravan Park, AU	daily rain	27.7 mm (1.1 in)	20.6 mm (0.8 in)	25 years	50 of 100 (Notable)
12 December 1917	Port Elliott, AU	daily rain	29.7 mm (1.2 in)	21.6 mm (0.9 in)	25 years	48 of 100 (Notable)
12 December 1917	Farrell Flat, AU	monthly rain	50.0 mm (2.0 in)	17.0 mm (0.7 in)	25 years	46 of 100 (Notable)
12 December 1917	Snowtown, AU	monthly rain	36.6 mm (1.4 in)	13.7 mm (0.5 in)	6 years	46 of 100 (Notable)
12 December 1917	Dinby, AU	daily rain	85.3 mm (3.4 in)	57.1 mm (2.2 in)	7 years	45 of 100 (Notable)
12 December 1917	Hallett (Old Canowie), AU	daily rain	47.2 mm (1.9 in)	33.2 mm (1.3 in)	6 years	44 of 100 (Notable)
12 December 1917	Mogil Mogil (Benimora), AU	monthly rain	88.4 mm (3.5 in)	35.1 mm (1.4 in)	13 years	44 of 100 (Notable)
12 December 1917	Yacka, AU	daily rain	36.1 mm (1.4 in)	24.7 mm (1.0 in)	25 years	43 of 100 (Notable)
12 December 1917	Stockport, AU	daily rain	31.8 mm (1.3 in)	20.9 mm (0.8 in)	25 years	42 of 100 (Notable)
12 December 1917	Wirrabara, AU	all-time rain	64.3 mm (2.5 in)	7.4 mm (0.29 in)	7 years	41 of 100 (Notable)
12 December 1917	Marrabel, AU	monthly rain	50.8 mm (2.0 in)	13.0 mm (0.5 in)	20 years	40 of 100 (Notable)
12 December 1917	Maitland (Weetulta), AU	monthly rain	33.0 mm (1.3 in)	10.1 mm (0.4 in)	24 years	38 of 100 (Notable)
12 December 1917	Goolwa Council Depot, AU	daily rain	25.4 mm (1.0 in)	19.3 mm (0.8 in)	6 years	38 of 100 (Notable)

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 1917

Records set or tied on this calendar date in each year from 1796 to 1917. 1917 had 246 records.

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

Records on 12-12 in each year
Year	Records
1796	2
1798	1
1802	1
1808	2
1814	1
1825	2
1831	1
1835	2
1846	1
1855	2
1861	1
1863	3
1870	2
1871	5
1873	2
1879	2
1882	3
1887	1
1889	1
1891	2
1892	2
1893	8
1894	3
1895	1
1896	4
1897	3
1898	20
1899	11
1900	5
1901	4
1902	7
1903	18
1904	20
1905	10
1906	14
1907	8
1908	25
1909	20
1910	39
1911	104
1912	53
1913	20
1914	19
1915	46
1916	115
1917	246
1918	33
1919	23
1920	41
1921	63
1922	61
1923	91
1924	130
1925	75
1926	143
1927	335
1928	234
1929	405
1930	45
1931	522
1932	813
1933	358
1934	430
1935	266
1936	142
1937	468
1938	103
1939	418
1940	621
1941	260
1942	257
1943	165
1944	688
1945	212
1946	761
1947	295
1948	282
1949	789
1950	364
1951	175
1952	501
1953	288
1954	696
1955	381
1956	441
1957	1,118
1958	884
1959	464
1960	710
1961	1,481
1962	1,495
1963	439
1964	459
1965	1,045
1966	369
1967	565
1968	727
1969	499
1970	366
1971	585
1972	1,669
1973	397
1974	191
1975	492
1976	319
1977	907
1978	382
1979	1,016
1980	583
1981	734
1982	867
1983	816
1984	808
1985	1,384
1986	408
1987	468
1988	1,030
1989	930
1990	676
1991	1,980
1992	818
1993	887
1994	1,172
1995	2,030
1996	1,391
1997	869
1998	1,103
1999	952
2000	2,510
2001	700
2002	683
2003	537
2004	727
2005	769
2006	886
2007	1,315
2008	1,424
2009	818
2010	1,501
2011	621
2012	684
2013	646
2014	1,040
2015	1,496
2016	530
2017	808
2018	256
2019	418
2020	507
2021	441
2022	767
2023	544
2024	328
2025	1,485

Download the Data

Data for records on 1917-12-12: 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	147
10 to 20	50
20 to 30	18
30 to 40	9
40 to 50	0
50 to 60	3