Weather Records on 7 October 1917

47 weather records were set or tied worldwide on 7 October 1917. Highest significance: Sevastopol',Mgs, UA.

Key Facts for 7 October 1917

On 7 October 1917, 47 weather records were set or tied at long-record stations worldwide.
3 were record highs and 15 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 1 monthly and 46 daily.
Sevastopol',Mgs set a daily record precipitation of 33.1 mm (1.3 in) on 7 October 1917.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 462 records.

Record Map

47 stations

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

Weather records on 7 October 1917: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sevastopol',Mgs	Ukraine	Record daily precipitation	33.1 mm (1.3 in)	48 of 100 (Notable)
Ferntree Gully	Australia	Record daily precipitation	49.5 mm (1.9 in)	45 of 100 (Notable)
Nebo	Australia	Record daily precipitation	68.6 mm (2.7 in)	42 of 100 (Notable)
Roermond	Netherlands	Record daily precipitation	30.3 mm (1.2 in)	42 of 100 (Notable)
Bundaberg Post Office	Australia	Record daily precipitation	47.8 mm (1.9 in)	33 of 100 (Routine)
Lawrence Post Office	Australia	Record daily precipitation	33.0 mm (1.3 in)	30 of 100 (Routine)
Woody Island	Australia	Record daily precipitation	39.6 mm (1.6 in)	29 of 100 (Routine)
Inskip Point Lighthouse	Australia	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Washington	United States	Record low minimum temperature	1.1 C (34.0 F)	26 of 100 (Routine)
Sacramento 5 ESE	United States	Record high maximum temperature	37.2 C (99.0 F)	24 of 100 (Routine)
Groningen-1	Netherlands	Record daily precipitation	22.5 mm (0.9 in)	20 of 100 (Routine)
Vinga	Sweden	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Casino Airport	Australia	Record daily precipitation	18.8 mm (0.7 in)	20 of 100 (Routine)
Arnsberg	Germany	Record daily precipitation	13.9 mm (0.5 in)	20 of 100 (Routine)
Kerkwerve	Netherlands	Record daily precipitation	17.2 mm (0.7 in)	20 of 100 (Routine)
Charters Towers Post Office	Australia	Record daily precipitation	14.7 mm (0.6 in)	18 of 100 (Routine)
Gunnedah Pool	Australia	Record low maximum temperature	16.7 C (62.1 F)	18 of 100 (Routine)
Durham	United Kingdom	Record low minimum temperature	-2.2 C (28.0 F)	18 of 100 (Routine)
St Lawrence Post Office	Australia	Record daily precipitation	45.0 mm (1.8 in)	17 of 100 (Routine)
Bad Muskau	Germany	Record daily precipitation	14.0 mm (0.6 in)	17 of 100 (Routine)
Stornoway Airport	United Kingdom	Record low minimum temperature	-0.6 C (30.9 F)	17 of 100 (Routine)
Sacramento 5 ESE	United States	Record high minimum temperature	15.6 C (60.1 F)	17 of 100 (Routine)
Milang	Australia	Record daily precipitation	4.3 mm (0.17 in)	16 of 100 (Routine)
Altastenberg	Germany	Record snow depth	2.0 cm (0.8 in)	16 of 100 (Routine)
Stornoway Airport	United Kingdom	Record low maximum temperature	6.1 C (43.0 F)	15 of 100 (Routine)
Sheffield	United Kingdom	Record low minimum temperature	0.6 C (33.1 F)	14 of 100 (Routine)
Tarlee	Australia	Record daily precipitation	7.6 mm (0.30 in)	13 of 100 (Routine)
Altastenberg	Germany	Record daily precipitation	14.1 mm (0.6 in)	13 of 100 (Routine)
Darwin Post Office	Australia	Record daily precipitation	10.7 mm (0.4 in)	12 of 100 (Routine)
Adelaide West Terrace	Australia	Record low maximum temperature	13.8 C (56.8 F)	11 of 100 (Routine)
Emerald Post Office	Australia	Record daily precipitation	5.8 mm (0.23 in)	11 of 100 (Routine)
Deniliquin (Wilkinson St)	Australia	Record low maximum temperature	14.4 C (57.9 F)	11 of 100 (Routine)
Morgantown 1	United States	Record low minimum temperature	-0.6 C (30.9 F)	10 of 100 (Routine)
Hoorn	Netherlands	Record daily precipitation	20.7 mm (0.8 in)	8 of 100 (Routine)
Helmond	Netherlands	Record daily precipitation	14.5 mm (0.6 in)	8 of 100 (Routine)
Simferopol	Ukraine	Record daily precipitation	7.3 mm (0.29 in)	8 of 100 (Routine)
Goorimpa	Australia	Record daily precipitation	3.8 mm (0.15 in)	6 of 100 (Routine)
Yalta	Ukraine	Record daily precipitation	4.8 mm (0.19 in)	6 of 100 (Routine)
Bustard Head Lighthouse	Australia	Record daily precipitation	6.4 mm (0.25 in)	4 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low minimum temperature	3.9 C (39.0 F)	4 of 100 (Routine)
Zerbst	Germany	Record daily precipitation	7.1 mm (0.28 in)	4 of 100 (Routine)
Pointe Au Pere	Canada	Record low minimum temperature	-2.2 C (28.0 F)	3 of 100 (Routine)
Pitea	Sweden	Record low maximum temperature	1.0 C (33.8 F)	3 of 100 (Routine)
Santa Fe	United States	Record high minimum temperature	11.1 C (52.0 F)	3 of 100 (Routine)
Forbes (Camp Street)	Australia	Record low maximum temperature	16.1 C (61.0 F)	2 of 100 (Routine)
Cape Otway Lighthouse	Australia	Record low maximum temperature	12.2 C (54.0 F)	2 of 100 (Routine)
Wilmington Wb City	United States	Record low maximum temperature	18.9 C (66.0 F)	2 of 100 (Routine)

Counts by Type and Timescale

47 records

Records set or tied on 7 October 1917 by type: Highest daily maximum 1, Lowest daily maximum 8, Highest daily minimum 2, Lowest daily minimum 7, Heaviest daily rainfall 28, Deepest snow cover 1.

Records on 7 October 1917 by type
Record type	Records
Highest daily maximum	1
Lowest daily maximum	8
Highest daily minimum	2
Lowest daily minimum	7
Heaviest daily rainfall	28
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 7 October 1917 by timescale: all-time 0, monthly 1, daily 46.

How Much Records Were Beaten By

40 broken records

Margins by which the 40 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 50.8. Ties are not counted.

Top 20 by Significance

7 October 1917

Top 20 records on 7 October 1917 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
7 October 1917	Sevastopol',Mgs, UA	daily rain	33.1 mm (1.3 in)	29.9 mm (1.2 in)	18 years	48 of 100 (Notable)
7 October 1917	Ferntree Gully, AU	daily rain	49.5 mm (1.9 in)	26.9 mm (1.1 in)	28 years	45 of 100 (Notable)
7 October 1917	Nebo, AU	daily rain	68.6 mm (2.7 in)	50.8 mm (2.0 in)	3 years	42 of 100 (Notable)
7 October 1917	Roermond, NL	daily rain	30.3 mm (1.2 in)	15.9 mm (0.6 in)	10 years	42 of 100 (Notable)
7 October 1917	Bundaberg Post Office, AU	daily rain	47.8 mm (1.9 in)	36.4 mm (1.4 in)	22 years	33 of 100 (Routine)
7 October 1917	Lawrence Post Office, AU	daily rain	33.0 mm (1.3 in)	27.9 mm (1.1 in)	11 years	30 of 100 (Routine)
7 October 1917	Woody Island, AU	daily rain	39.6 mm (1.6 in)	26.9 mm (1.1 in)	21 years	29 of 100 (Routine)
7 October 1917	Inskip Point Lighthouse, AU	daily rain	27.9 mm (1.1 in)	25.9 mm (1.0 in)	22 years	28 of 100 (Routine)
7 October 1917	Washington, US	daily low min	1.1 C (34.0 F)	1.1 C (2.0 F)	60 years	26 of 100 (Routine)
7 October 1917	Sacramento 5 ESE, US	monthly high max	37.2 C (99.0 F)	0.5 C (0.9 F)	32 years	24 of 100 (Routine)
7 October 1917	Groningen-1, NL	daily rain	22.5 mm (0.9 in)	8.5 mm (0.33 in)	16 years	20 of 100 (Routine)
7 October 1917	Vinga, SE	daily rain	23.6 mm (0.9 in)	14.2 mm (0.6 in)	10 years	20 of 100 (Routine)
7 October 1917	Casino Airport, AU	daily rain	18.8 mm (0.7 in)	14.5 mm (0.6 in)	19 years	20 of 100 (Routine)
7 October 1917	Arnsberg, DE	daily rain	13.9 mm (0.5 in)	5.7 mm (0.22 in)	26 years	20 of 100 (Routine)
7 October 1917	Kerkwerve, NL	daily rain	17.2 mm (0.7 in)	8.7 mm (0.34 in)	6 years	20 of 100 (Routine)
7 October 1917	Charters Towers Post Office, AU	daily rain	14.7 mm (0.6 in)	13.2 mm (0.5 in)	19 years	18 of 100 (Routine)
7 October 1917	Gunnedah Pool, AU	daily low max	16.7 C (62.1 F)	2.2 C (4.0 F)	33 years	18 of 100 (Routine)
7 October 1917	Durham, GB	daily low min	-2.2 C (28.0 F)	2.6 C (4.7 F)	28 years	18 of 100 (Routine)
7 October 1917	St Lawrence Post Office, AU	daily rain	45.0 mm (1.8 in)	21.4 mm (0.8 in)	11 years	17 of 100 (Routine)
7 October 1917	Bad Muskau, DE	daily rain	14.0 mm (0.6 in)	2.9 mm (0.11 in)	28 years	17 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

1802 to 1917

Records set or tied on this calendar date in each year from 1802 to 1917. 1917 had 47 records.

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

Records on 10-07 in each year
Year	Records
1802	1
1811	1
1824	1
1839	1
1843	1
1852	2
1853	1
1854	1
1858	1
1861	1
1863	2
1864	4
1865	1
1867	2
1868	1
1869	1
1872	2
1873	4
1875	1
1876	2
1877	1
1878	1
1880	1
1881	1
1882	1
1884	1
1886	1
1887	1
1888	2
1889	3
1890	4
1891	2
1892	2
1893	5
1895	2
1896	2
1897	6
1898	7
1899	6
1900	6
1901	14
1902	3
1903	11
1904	27
1905	9
1906	5
1907	10
1908	14
1909	14
1910	18
1911	24
1912	36
1913	32
1914	20
1915	22
1916	35
1917	47
1918	121
1919	28
1920	106
1921	68
1922	43
1923	117
1924	86
1925	247
1926	157
1927	173
1928	120
1929	121
1930	517
1931	603
1932	476
1933	166
1934	237
1935	918
1936	436
1937	359
1938	471
1939	769
1940	159
1941	892
1942	184
1943	424
1944	265
1945	257
1946	1,128
1947	557
1948	333
1949	576
1950	363
1951	604
1952	1,470
1953	524
1954	465
1955	629
1956	548
1957	567
1958	598
1959	770
1960	413
1961	721
1962	449
1963	453
1964	961
1965	584
1966	398
1967	432
1968	764
1969	365
1970	1,148
1971	629
1972	537
1973	461
1974	773
1975	760
1976	1,087
1977	808
1978	406
1979	774
1980	1,253
1981	737
1982	1,079
1983	555
1984	717
1985	1,089
1986	519
1987	834
1988	753
1989	389
1990	948
1991	1,189
1992	872
1993	918
1994	1,144
1995	658
1996	1,073
1997	1,903
1998	1,331
1999	895
2000	2,427
2001	823
2002	704
2003	1,364
2004	518
2005	1,476
2006	1,004
2007	2,285
2008	621
2009	1,926
2010	994
2011	1,216
2012	1,350
2013	675
2014	569
2015	439
2016	537
2017	581
2018	1,063
2019	569
2020	1,175
2021	586
2022	557
2023	705
2024	849
2025	525
2026	917

Download the Data

Data for records on 1917-10-07: 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 10	27
10 to 20	4
20 to 30	7
30 to 40	1
40 to 50	0
50 to 60	1