Weather Records on 9 October 1915

25 weather records were set or tied worldwide on 9 October 1915. Highest significance: Bird Rocks, CA.

Key Facts for 9 October 1915

On 9 October 1915, 25 weather records were set or tied at long-record stations worldwide.
0 were record highs and 18 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 0 monthly and 25 daily.
Bird Rocks set a daily record precipitation of 35.6 mm (1.4 in) on 9 October 1915.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 470 records.

Record Map

25 stations

25 station records on 9 October 1915 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 October 1915: highest significance records shown on the map
Station	Country	Type	Value	Significance
Bird Rocks	Canada	Record daily precipitation	35.6 mm (1.4 in)	41 of 100 (Notable)
Charlottetown	Canada	Record daily precipitation	43.4 mm (1.7 in)	23 of 100 (Routine)
Wiarton	Canada	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Westminster	Canada	Record daily precipitation	13.2 mm (0.5 in)	20 of 100 (Routine)
Jacksonville Wb City	United States	Record low maximum temperature	18.9 C (66.0 F)	20 of 100 (Routine)
Morgantown 1	United States	Record low maximum temperature	7.8 C (46.0 F)	15 of 100 (Routine)
Yarmouth	Canada	Record daily precipitation	20.3 mm (0.8 in)	14 of 100 (Routine)
Cleveland 2717 Euclid	United States	Record low maximum temperature	7.2 C (45.0 F)	13 of 100 (Routine)
Lexington Bluegrass AP	United States	Record low maximum temperature	9.4 C (48.9 F)	12 of 100 (Routine)
Inverell Comparison	Australia	Record low minimum temperature	-1.1 C (30.0 F)	10 of 100 (Routine)
Port Stanley	Canada	Record low maximum temperature	7.2 C (45.0 F)	10 of 100 (Routine)
London South	Canada	Record daily precipitation	16.3 mm (0.6 in)	10 of 100 (Routine)
Mahackala	Russia	Record daily precipitation	9.1 mm (0.36 in)	10 of 100 (Routine)
Port Arthur	Canada	Record low minimum temperature	-6.7 C (19.9 F)	9 of 100 (Routine)
Escanaba	United States	Record low maximum temperature	3.9 C (39.0 F)	7 of 100 (Routine)
Chattanooga Wb City	United States	Record low maximum temperature	13.9 C (57.0 F)	6 of 100 (Routine)
Hamilton	Canada	Record low maximum temperature	8.9 C (48.0 F)	4 of 100 (Routine)
Beatrice	Canada	Record low maximum temperature	4.4 C (39.9 F)	2 of 100 (Routine)
Windsor Riverside	Canada	Record low maximum temperature	8.9 C (48.0 F)	2 of 100 (Routine)
London South	Canada	Record low maximum temperature	7.2 C (45.0 F)	2 of 100 (Routine)
Buffalo	United States	Record low maximum temperature	6.7 C (44.1 F)	2 of 100 (Routine)
Toledo Blade	United States	Record low maximum temperature	8.3 C (46.9 F)	2 of 100 (Routine)
Madison Wb City	United States	Record low minimum temperature	-2.8 C (27.0 F)	2 of 100 (Routine)
Dubuque River	United States	Record low minimum temperature	-3.3 C (26.1 F)	2 of 100 (Routine)
Milwaukee Wb City	United States	Record low maximum temperature	7.2 C (45.0 F)	1 of 100 (Routine)

Counts by Type and Timescale

25 records

Records set or tied on 9 October 1915 by type: Lowest daily maximum 14, Lowest daily minimum 4, Heaviest daily rainfall 7.

Records on 9 October 1915 by type
Record type	Records
Highest daily maximum	0
Lowest daily maximum	14
Highest daily minimum	0
Lowest daily minimum	4
Heaviest daily rainfall	7
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 9 October 1915 by timescale: all-time 0, monthly 0, daily 25.

How Much Records Were Beaten By

16 broken records

Margins by which the 16 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 23.2. Ties are not counted.

Top 20 by Significance

9 October 1915

Top 20 records on 9 October 1915 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 October 1915	Bird Rocks, CA	daily rain	35.6 mm (1.4 in)	23.2 mm (0.9 in)	22 years	41 of 100 (Notable)
9 October 1915	Charlottetown, CA	daily rain	43.4 mm (1.7 in)	18.0 mm (0.7 in)	14 years	23 of 100 (Routine)
9 October 1915	Wiarton, CA	daily rain	24.1 mm (0.9 in)	16.0 mm (0.6 in)	8 years	20 of 100 (Routine)
9 October 1915	Westminster, CA	daily rain	13.2 mm (0.5 in)	9.4 mm (0.37 in)	31 years	20 of 100 (Routine)
9 October 1915	Jacksonville Wb City, US	daily low max	18.9 C (66.0 F)	3.3 C (5.9 F)	25 years	20 of 100 (Routine)
9 October 1915	Morgantown 1, US	daily low max	7.8 C (46.0 F)	3.9 C (7.0 F)	19 years	15 of 100 (Routine)
9 October 1915	Yarmouth, CA	daily rain	20.3 mm (0.8 in)	12.9 mm (0.5 in)	4 years	14 of 100 (Routine)
9 October 1915	Cleveland 2717 Euclid, US	daily low max	7.2 C (45.0 F)	1.1 C (2.0 F)	26 years	13 of 100 (Routine)
9 October 1915	Lexington Bluegrass AP, US	daily low max	9.4 C (48.9 F)	2.3 C (4.1 F)	19 years	12 of 100 (Routine)
9 October 1915	Inverell Comparison, AU	daily low min	-1.1 C (30.0 F)	2.2 C (4.0 F)	6 years	10 of 100 (Routine)
9 October 1915	Port Stanley, CA	daily low max	7.2 C (45.0 F)	0.6 C (1.1 F)	19 years	10 of 100 (Routine)
9 October 1915	London South, CA	daily rain	16.3 mm (0.6 in)	4.6 mm (0.18 in)	8 years	10 of 100 (Routine)
9 October 1915	Mahackala, RU	daily rain	9.1 mm (0.36 in)	0.9 mm (0.04 in)	20 years	10 of 100 (Routine)
9 October 1915	Port Arthur, CA	daily low min	-6.7 C (19.9 F)	0.6 C (1.1 F)	17 years	9 of 100 (Routine)
9 October 1915	Escanaba, US	daily low max	3.9 C (39.0 F)	0.5 C (0.9 F)	8 years	7 of 100 (Routine)
9 October 1915	Chattanooga Wb City, US	daily low max	13.9 C (57.0 F)	0.5 C (0.9 F)	6 years	6 of 100 (Routine)
9 October 1915	Hamilton, CA	daily low max (Tie)	8.9 C (48.0 F)	tie	38 years	4 of 100 (Routine)
9 October 1915	Beatrice, CA	daily low max (Tie)	4.4 C (39.9 F)	tie	19 years	2 of 100 (Routine)
9 October 1915	Windsor Riverside, CA	daily low max (Tie)	8.9 C (48.0 F)	tie	18 years	2 of 100 (Routine)
9 October 1915	London South, CA	daily low max (Tie)	7.2 C (45.0 F)	tie	19 years	2 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

1793 to 1915

Records set or tied on this calendar date in each year from 1793 to 1915. 1915 had 25 records.

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

Records on 10-09 in each year
Year	Records
1793	1
1795	1
1802	1
1834	1
1837	1
1846	2
1847	1
1854	2
1858	1
1861	1
1864	2
1865	3
1866	1
1867	2
1869	1
1870	2
1875	1
1876	2
1877	2
1879	2
1881	1
1882	1
1884	1
1885	1
1886	1
1887	2
1888	6
1889	1
1890	1
1891	1
1893	5
1895	7
1896	4
1897	1
1898	3
1899	5
1900	5
1901	2
1902	3
1903	15
1904	8
1905	14
1906	29
1907	6
1908	19
1909	34
1910	20
1911	16
1912	23
1913	57
1914	22
1915	25
1916	126
1917	65
1918	16
1919	68
1920	36
1921	217
1922	40
1923	72
1924	95
1925	272
1926	123
1927	107
1928	290
1929	196
1930	276
1931	298
1932	271
1933	187
1934	298
1935	208
1936	569
1937	405
1938	462
1939	877
1940	119
1941	570
1942	330
1943	442
1944	144
1945	539
1946	317
1947	277
1948	438
1949	1,531
1950	618
1951	347
1952	658
1953	343
1954	341
1955	643
1956	468
1957	256
1958	639
1959	1,432
1960	397
1961	622
1962	508
1963	474
1964	841
1965	349
1966	489
1967	347
1968	538
1969	389
1970	1,805
1971	423
1972	371
1973	1,454
1974	513
1975	552
1976	1,448
1977	586
1978	589
1979	914
1980	627
1981	653
1982	1,579
1983	548
1984	579
1985	1,724
1986	556
1987	850
1988	1,060
1989	679
1990	1,714
1991	707
1992	1,050
1993	1,043
1994	772
1995	1,139
1996	1,047
1997	2,113
1998	622
1999	1,017
2000	3,177
2001	855
2002	701
2003	1,386
2004	665
2005	807
2006	640
2007	1,450
2008	473
2009	1,772
2010	1,311
2011	1,046
2012	706
2013	562
2014	652
2015	780
2016	463
2017	1,457
2018	1,290
2019	964
2020	738
2021	751
2022	696
2023	643
2024	963
2025	503
2026	691

Download the Data

Data for records on 1915-10-09: 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 5	11
5 to 10	1
10 to 15	1
15 to 20	2
20 to 25	1