Weather Records on 12 October 1917

53 weather records were set or tied worldwide on 12 October 1917. Highest significance: Gorki, BY.

Key Facts for 12 October 1917

On 12 October 1917, 53 weather records were set or tied at long-record stations worldwide.
1 were record highs and 24 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 52 daily.
Gorki set a daily record precipitation of 28.7 mm (1.1 in) on 12 October 1917.
Across 163 earlier years (1805 to 2026) the same calendar date averaged 454 records.

Record Map

53 stations

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

Weather records on 12 October 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Gorki	Belarus	Record daily precipitation	28.7 mm (1.1 in)	49 of 100 (Notable)
Bic	Canada	Record daily snowfall	7.6 cm (3.0 in)	38 of 100 (Notable)
Cap Madeleine	Canada	Record daily precipitation	50.8 mm (2.0 in)	23 of 100 (Routine)
Port Stanley	Canada	Record daily precipitation	31.5 mm (1.2 in)	22 of 100 (Routine)
Malin Head	Ireland	Record daily precipitation	22.3 mm (0.9 in)	20 of 100 (Routine)
Arhangelsk	Russia	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Altastenberg	Germany	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)
Roermond	Netherlands	Record daily precipitation	17.4 mm (0.7 in)	20 of 100 (Routine)
Port Arthur	Canada	Record daily snowfall	3.8 cm (1.5 in)	20 of 100 (Routine)
Munchen-Nymphenburg	Germany	Record daily precipitation	24.5 mm (1.0 in)	20 of 100 (Routine)
Nikolaevsk-Na-Amure	Russia	Record daily precipitation	22.3 mm (0.9 in)	19 of 100 (Routine)
Kingston Queens U	Canada	Record daily precipitation	21.6 mm (0.9 in)	18 of 100 (Routine)
Maccue	Canada	Record daily precipitation	24.6 mm (1.0 in)	18 of 100 (Routine)
Anticosti SW Point	Canada	Record daily precipitation	25.9 mm (1.0 in)	18 of 100 (Routine)
Lindsay	Canada	Record daily precipitation	18.5 mm (0.7 in)	17 of 100 (Routine)
Nidingen A	Sweden	Record daily precipitation	14.9 mm (0.6 in)	17 of 100 (Routine)
Winnipeg St Johns Coll	Canada	Record low maximum temperature	1.1 C (34.0 F)	16 of 100 (Routine)
Port Arthur	Canada	Record low minimum temperature	-4.4 C (24.1 F)	16 of 100 (Routine)
Southampton	Canada	Record daily precipitation	19.3 mm (0.8 in)	16 of 100 (Routine)
Umzimkulu (Tnk)	South Africa	Record daily precipitation	10.2 mm (0.4 in)	16 of 100 (Routine)
Middletown 4 W	United States	Record low minimum temperature	-2.8 C (27.0 F)	16 of 100 (Routine)
Dubuque River	United States	Record low minimum temperature	-3.3 C (26.1 F)	16 of 100 (Routine)
Falsterbo	Sweden	Record daily precipitation	10.6 mm (0.4 in)	15 of 100 (Routine)
Vinga	Sweden	Record daily precipitation	11.4 mm (0.4 in)	15 of 100 (Routine)
Morris W Cntrl Rsch & Outreach	United States	Record low minimum temperature	-9.4 C (15.1 F)	15 of 100 (Routine)
Woodstock	Canada	Record daily precipitation	22.6 mm (0.9 in)	14 of 100 (Routine)
Stony Mountain	Canada	Record low minimum temperature	-11.1 C (12.0 F)	13 of 100 (Routine)
Parry Sound	Canada	Record low maximum temperature	7.2 C (45.0 F)	13 of 100 (Routine)
Georgetown	Canada	Record daily precipitation	18.5 mm (0.7 in)	13 of 100 (Routine)
Hoorn	Netherlands	Record daily precipitation	12.9 mm (0.5 in)	13 of 100 (Routine)
Kiev	Ukraine	Record high minimum temperature	12.7 C (54.9 F)	12 of 100 (Routine)
Minnedosa	Canada	Record low minimum temperature	-12.8 C (9.0 F)	11 of 100 (Routine)
Setauket Strong	United States	Record low minimum temperature	3.9 C (39.0 F)	11 of 100 (Routine)
Huron Rgnl AP	United States	Record low minimum temperature	-10.6 C (12.9 F)	11 of 100 (Routine)
Algiers-Ville/Universite	Algeria	Record low minimum temperature	12.0 C (53.6 F)	10 of 100 (Routine)
Stony Mountain	Canada	Record low maximum temperature	-1.1 C (30.0 F)	10 of 100 (Routine)
Vasilevici	Belarus	Record daily precipitation	26.0 mm (1.0 in)	9 of 100 (Routine)
St Albans	Canada	Record low minimum temperature	-12.8 C (9.0 F)	9 of 100 (Routine)
Coldwater	Canada	Record daily precipitation	18.5 mm (0.7 in)	9 of 100 (Routine)
Welland	Canada	Record daily precipitation	14.7 mm (0.6 in)	9 of 100 (Routine)
Saint John	Canada	Record daily precipitation	28.4 mm (1.1 in)	9 of 100 (Routine)
Kristianstad	Sweden	Record daily precipitation	7.8 mm (0.31 in)	9 of 100 (Routine)
Madison Wb City	United States	Record low minimum temperature	-3.3 C (26.1 F)	8 of 100 (Routine)
Brisbane Regional Office	Australia	Record low maximum temperature	20.2 C (68.4 F)	7 of 100 (Routine)
La Crosse Wb City	United States	Record low minimum temperature	-3.9 C (25.0 F)	7 of 100 (Routine)
Wrixum/Fohr	Germany	Record low minimum temperature	3.8 C (38.8 F)	5 of 100 (Routine)
Concord	United States	Record low minimum temperature	-3.3 C (26.1 F)	4 of 100 (Routine)
Barrie	Canada	Record low maximum temperature	7.8 C (46.0 F)	3 of 100 (Routine)
San Diego Wbo	United States	Record low maximum temperature	18.3 C (64.9 F)	3 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record low maximum temperature	20.0 C (68.0 F)	2 of 100 (Routine)
London South	Canada	Record low maximum temperature	7.2 C (45.0 F)	2 of 100 (Routine)
Stornoway Airport	United Kingdom	Record low maximum temperature	6.7 C (44.1 F)	2 of 100 (Routine)
Concordia ASOS	United States	Record low minimum temperature	-3.9 C (25.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

53 records

Records set or tied on 12 October 1917 by type: Lowest daily maximum 9, Highest daily minimum 1, Lowest daily minimum 15, Heaviest daily rainfall 26, Heaviest daily snowfall 2.

Records on 12 October 1917 by type
Record type	Records
Highest daily maximum	0
Lowest daily maximum	9
Highest daily minimum	1
Lowest daily minimum	15
Heaviest daily rainfall	26
Heaviest daily snowfall	2
Deepest snow cover	0

Records on 12 October 1917 by timescale: all-time 0, monthly 1, daily 52.

How Much Records Were Beaten By

46 broken records

Margins by which the 46 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.

Top 20 by Significance

12 October 1917

Top 20 records on 12 October 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
12 October 1917	Gorki, BY	daily rain	28.7 mm (1.1 in)	19.4 mm (0.8 in)	21 years	49 of 100 (Notable)
12 October 1917	Bic, CA	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	34 years	38 of 100 (Notable)
12 October 1917	Cap Madeleine, CA	monthly rain	50.8 mm (2.0 in)	2.5 mm (0.10 in)	25 years	23 of 100 (Routine)
12 October 1917	Port Stanley, CA	daily rain	31.5 mm (1.2 in)	7.1 mm (0.28 in)	35 years	22 of 100 (Routine)
12 October 1917	Malin Head, IE	daily rain	22.3 mm (0.9 in)	12.6 mm (0.5 in)	14 years	20 of 100 (Routine)
12 October 1917	Arhangelsk, RU	daily rain	10.4 mm (0.4 in)	6.5 mm (0.26 in)	17 years	20 of 100 (Routine)
12 October 1917	Altastenberg, DE	daily rain	17.8 mm (0.7 in)	11.4 mm (0.4 in)	17 years	20 of 100 (Routine)
12 October 1917	Roermond, NL	daily rain	17.4 mm (0.7 in)	7.4 mm (0.29 in)	14 years	20 of 100 (Routine)
12 October 1917	Port Arthur, CA	daily snowfall	3.8 cm (1.5 in)	3.8 cm (1.5 in)	39 years	20 of 100 (Routine)
12 October 1917	Munchen-Nymphenburg, DE	daily rain	24.5 mm (1.0 in)	7.3 mm (0.29 in)	18 years	20 of 100 (Routine)
12 October 1917	Nikolaevsk-Na-Amure, RU	daily rain	22.3 mm (0.9 in)	14.8 mm (0.6 in)	2 years	19 of 100 (Routine)
12 October 1917	Kingston Queens U, CA	daily rain	21.6 mm (0.9 in)	7.1 mm (0.28 in)	19 years	18 of 100 (Routine)
12 October 1917	Maccue, CA	daily rain	24.6 mm (1.0 in)	9.4 mm (0.37 in)	19 years	18 of 100 (Routine)
12 October 1917	Anticosti SW Point, CA	daily rain	25.9 mm (1.0 in)	9.9 mm (0.39 in)	18 years	18 of 100 (Routine)
12 October 1917	Lindsay, CA	daily rain	18.5 mm (0.7 in)	3.3 mm (0.13 in)	35 years	17 of 100 (Routine)
12 October 1917	Nidingen A, SE	daily rain	14.9 mm (0.6 in)	2.9 mm (0.11 in)	32 years	17 of 100 (Routine)
12 October 1917	Winnipeg St Johns Coll, CA	daily low max	1.1 C (34.0 F)	0.6 C (1.1 F)	40 years	16 of 100 (Routine)
12 October 1917	Port Arthur, CA	daily low min	-4.4 C (24.1 F)	1.1 C (2.0 F)	33 years	16 of 100 (Routine)
12 October 1917	Southampton, CA	daily rain	19.3 mm (0.8 in)	6.9 mm (0.27 in)	8 years	16 of 100 (Routine)
12 October 1917	Umzimkulu (Tnk), ZA	daily rain	10.2 mm (0.4 in)	4.4 mm (0.17 in)	26 years	16 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

1805 to 1917

Records set or tied on this calendar date in each year from 1805 to 1917. 1917 had 53 records.

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

Records on 10-12 in each year
Year	Records
1805	2
1809	1
1810	1
1814	3
1822	1
1839	1
1841	1
1843	1
1850	1
1852	1
1854	1
1859	1
1860	2
1861	1
1867	1
1871	3
1873	2
1875	2
1876	5
1879	2
1881	2
1884	1
1885	2
1886	1
1887	2
1888	1
1889	1
1890	3
1891	1
1892	1
1893	2
1894	2
1895	2
1896	3
1897	3
1898	2
1899	3
1900	2
1901	6
1902	14
1903	16
1904	30
1905	13
1906	16
1907	10
1908	13
1909	30
1910	13
1911	10
1912	30
1913	33
1914	17
1915	34
1916	29
1917	53
1918	29
1919	53
1920	79
1921	102
1922	21
1923	200
1924	129
1925	107
1926	201
1927	195
1928	714
1929	165
1930	606
1931	283
1932	398
1933	155
1934	477
1935	209
1936	301
1937	185
1938	470
1939	198
1940	235
1941	226
1942	540
1943	418
1944	274
1945	321
1946	554
1947	358
1948	311
1949	725
1950	594
1951	391
1952	352
1953	252
1954	911
1955	383
1956	899
1957	473
1958	448
1959	501
1960	449
1961	436
1962	971
1963	459
1964	636
1965	157
1966	423
1967	623
1968	443
1969	1,828
1970	763
1971	382
1972	412
1973	673
1974	369
1975	830
1976	582
1977	832
1978	525
1979	898
1980	741
1981	1,201
1982	777
1983	992
1984	636
1985	872
1986	1,510
1987	1,530
1988	1,015
1989	543
1990	1,325
1991	948
1992	865
1993	1,145
1994	934
1995	1,238
1996	816
1997	1,851
1998	741
1999	641
2000	1,095
2001	1,194
2002	1,139
2003	1,043
2004	750
2005	872
2006	1,357
2007	566
2008	1,669
2009	2,300
2010	797
2011	906
2012	921
2013	558
2014	514
2015	964
2016	374
2017	1,068
2018	1,195
2019	1,321
2020	655
2021	1,294
2022	439
2023	904
2024	958
2025	624
2026	710

Download the Data

Data for records on 1917-10-12: 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	40
10 to 20	4
20 to 30	0
30 to 40	1
40 to 50	0
50 to 60	0
60 to 70	0
70 to 80	1