Weather Records on 9 September 2015

806 weather records were set or tied worldwide on 9 September 2015. Highest significance: Chichibu, JP.

Key Facts for 9 September 2015

On 9 September 2015, 806 weather records were set or tied at long-record stations worldwide.
634 were record highs and 48 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 32 monthly and 771 daily.
Chichibu set a daily record precipitation of 198.1 mm (7.8 in) on 9 September 2015.
Across 162 earlier years (1806 to 2026) the same calendar date averaged 459 records.

Record Map

806 stations

806 station records on 9 September 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 September 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Chichibu	Japan	Record daily precipitation	198.1 mm (7.8 in)	53 of 100 (Notable)
Old Mission 3SSW	United States	Record daily precipitation	73.7 mm (2.9 in)	53 of 100 (Notable)
Cape Leeuwin	Australia	Record high maximum temperature	27.3 C (81.1 F)	50 of 100 (Notable)
Carbondale Sewage Plt	United States	Record daily precipitation	71.4 mm (2.8 in)	48 of 100 (Notable)
Kealakekua 26.2	United States	Record high maximum temperature	29.4 C (84.9 F)	47 of 100 (Notable)
Storrs	United States	Record high maximum temperature	33.3 C (91.9 F)	46 of 100 (Notable)
Salem	United States	Record daily precipitation	77.5 mm (3.1 in)	45 of 100 (Notable)
Isabela Substn	Puerto Rico [United States]	Record high minimum temperature	24.4 C (75.9 F)	43 of 100 (Notable)
Hightstown 2 W	United States	Record high maximum temperature	35.6 C (96.1 F)	43 of 100 (Notable)
Sussex 1 NW	United States	Record high maximum temperature	35.0 C (95.0 F)	43 of 100 (Notable)
Cornwall	United States	Record high minimum temperature	21.7 C (71.1 F)	43 of 100 (Notable)
New London	United States	Record daily precipitation	49.5 mm (1.9 in)	43 of 100 (Notable)
Newark Liberty Intl AP	United States	Record high minimum temperature	23.9 C (75.0 F)	43 of 100 (Notable)
Victorville	United States	Record daily precipitation	27.4 mm (1.1 in)	42 of 100 (Notable)
Hagerstown 1E	United States	Record high minimum temperature	22.8 C (73.0 F)	42 of 100 (Notable)
Charlotteburg Rsvr	United States	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)
W Chester 2 NW	United States	Record high maximum temperature	34.4 C (93.9 F)	42 of 100 (Notable)
Stamford 1	United States	Record high minimum temperature	23.3 C (73.9 F)	42 of 100 (Notable)
Dallas FAA AP	United States	Record daily precipitation	67.8 mm (2.7 in)	42 of 100 (Notable)
Narrogin	Australia	Record high maximum temperature	28.1 C (82.6 F)	41 of 100 (Notable)
Kawaguchiko	Japan	Record daily precipitation	165.1 mm (6.5 in)	41 of 100 (Notable)
Middleboro	United States	Record high minimum temperature	18.9 C (66.0 F)	41 of 100 (Notable)
Waverly	United States	Record high maximum temperature	34.4 C (93.9 F)	41 of 100 (Notable)
Little Mtn	United States	Record high minimum temperature	23.3 C (73.9 F)	41 of 100 (Notable)
Nikko	Japan	Record daily precipitation	351.0 mm (13.8 in)	40 of 100 (Notable)
Berkeley	United States	Record high maximum temperature	37.2 C (99.0 F)	40 of 100 (Notable)
Hetch Hetchy	United States	Record high minimum temperature	18.3 C (64.9 F)	38 of 100 (Notable)
Phoenixville 1 E	United States	Record high minimum temperature	23.9 C (75.0 F)	38 of 100 (Notable)
Albany	Australia	Record high maximum temperature	27.9 C (82.2 F)	37 of 100 (Notable)
Long Pool	United States	Record daily precipitation	85.6 mm (3.4 in)	37 of 100 (Notable)
Freehold-Marlboro	United States	Record high maximum temperature	35.6 C (96.1 F)	37 of 100 (Notable)
W Pt	United States	Record high maximum temperature	35.6 C (96.1 F)	37 of 100 (Notable)
Norwalk Wwtp	United States	Record high minimum temperature	22.2 C (72.0 F)	37 of 100 (Notable)
Hawley 1 E	United States	Record high maximum temperature	32.8 C (91.0 F)	37 of 100 (Notable)
Asheville	United States	Record high minimum temperature	20.6 C (69.1 F)	37 of 100 (Notable)
Vanderbilt 11ENE	United States	Record daily precipitation	31.8 mm (1.3 in)	36 of 100 (Notable)
First Connecticut Lake	United States	Record high minimum temperature	18.3 C (64.9 F)	36 of 100 (Notable)
Flemington 5 NNW	United States	Record high maximum temperature	35.6 C (96.1 F)	36 of 100 (Notable)
Atoka	United States	Record daily precipitation	74.9 mm (2.9 in)	36 of 100 (Notable)
Woodstock	United States	Record high minimum temperature	18.9 C (66.0 F)	36 of 100 (Notable)
Oconto 4 W	United States	Record daily precipitation	43.7 mm (1.7 in)	36 of 100 (Notable)
Atlantic City Marina	United States	Record high minimum temperature	25.0 C (77.0 F)	36 of 100 (Notable)
Turgaj	Kazakhstan	Record high maximum temperature	35.7 C (96.3 F)	35 of 100 (Notable)
Mt Carmel	United States	Record high maximum temperature	33.9 C (93.0 F)	35 of 100 (Notable)
Wilmington Porter Rsch	United States	Record high minimum temperature	23.3 C (73.9 F)	35 of 100 (Notable)
W Frankfort	United States	Record daily precipitation	64.8 mm (2.6 in)	35 of 100 (Notable)
Edgartown	United States	Record high maximum temperature	31.1 C (88.0 F)	35 of 100 (Notable)
Houghton Lake 6 WSW	United States	Record daily precipitation	31.5 mm (1.2 in)	35 of 100 (Notable)
Blackwell 1SSW	United States	Record daily precipitation	54.6 mm (2.1 in)	35 of 100 (Notable)
Saint Johnsbury	United States	Record high minimum temperature	18.9 C (66.0 F)	35 of 100 (Notable)
Igor I Sikorsky Mem AP	United States	Record high minimum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Sioux Rapids	United States	Record daily precipitation	26.2 mm (1.0 in)	34 of 100 (Routine)
Jubilejnaja	Russia	Record high maximum temperature	19.0 C (66.2 F)	33 of 100 (Routine)
Selinsgrove 2 S	United States	Record high maximum temperature	35.0 C (95.0 F)	33 of 100 (Routine)
Uniontown 1 NE	United States	Record high maximum temperature	33.9 C (93.0 F)	33 of 100 (Routine)
Mt Pleasant	United States	Record daily precipitation	52.1 mm (2.1 in)	33 of 100 (Routine)
N Is NAS	United States	Record high maximum temperature	35.0 C (95.0 F)	33 of 100 (Routine)
Calaveras Big Trees	United States	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Visalia	United States	Record high minimum temperature	21.1 C (70.0 F)	32 of 100 (Routine)
Hillsboro	United States	Record high minimum temperature	23.3 C (73.9 F)	32 of 100 (Routine)

Counts by Type and Timescale

806 records

Records set or tied on 9 September 2015 by type: Highest daily maximum 278, Lowest daily maximum 17, Highest daily minimum 356, Lowest daily minimum 31, Heaviest daily rainfall 124.

Records on 9 September 2015 by type
Record type	Records
Highest daily maximum	278
Lowest daily maximum	17
Highest daily minimum	356
Lowest daily minimum	31
Heaviest daily rainfall	124
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 9 September 2015 by timescale: all-time 3, monthly 32, daily 771.

How Much Records Were Beaten By

575 broken records

Margins by which the 575 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 113.1. Ties are not counted.

Top 20 by Significance

9 September 2015

Top 20 records on 9 September 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 September 2015	Chichibu, JP	daily rain	198.1 mm (7.8 in)	113.1 mm (4.5 in)	37 years	53 of 100 (Notable)
9 September 2015	Old Mission 3SSW, US	daily rain	73.7 mm (2.9 in)	59.7 mm (2.4 in)	34 years	53 of 100 (Notable)
9 September 2015	Cape Leeuwin, AU	daily high max	27.3 C (81.1 F)	5.5 C (9.9 F)	40 years	50 of 100 (Notable)
9 September 2015	Carbondale Sewage Plt, US	daily rain	71.4 mm (2.8 in)	12.2 mm (0.5 in)	104 years	48 of 100 (Notable)
9 September 2015	Kealakekua 26.2, US	daily high max	29.4 C (84.9 F)	1.1 C (2.0 F)	105 years	47 of 100 (Notable)
9 September 2015	Storrs, US	daily high max	33.3 C (91.9 F)	2.7 C (4.9 F)	100 years	46 of 100 (Notable)
9 September 2015	Salem, US	daily rain	77.5 mm (3.1 in)	34.8 mm (1.4 in)	30 years	45 of 100 (Notable)
9 September 2015	Isabela Substn, PR	daily high min	24.4 C (75.9 F)	0.5 C (0.9 F)	102 years	43 of 100 (Notable)
9 September 2015	Hightstown 2 W, US	daily high max	35.6 C (96.1 F)	1.7 C (3.1 F)	100 years	43 of 100 (Notable)
9 September 2015	Sussex 1 NW, US	daily high max	35.0 C (95.0 F)	1.7 C (3.1 F)	100 years	43 of 100 (Notable)
9 September 2015	Cornwall, US	daily high min	21.7 C (71.1 F)	1.7 C (3.1 F)	100 years	43 of 100 (Notable)
9 September 2015	New London, US	daily rain	49.5 mm (1.9 in)	13.2 mm (0.5 in)	73 years	43 of 100 (Notable)
9 September 2015	Newark Liberty Intl AP, US	daily high min	23.9 C (75.0 F)	1.7 C (3.1 F)	130 years	43 of 100 (Notable)
9 September 2015	Victorville, US	daily rain	27.4 mm (1.1 in)	21.3 mm (0.8 in)	40 years	42 of 100 (Notable)
9 September 2015	Hagerstown 1E, US	daily high min	22.8 C (73.0 F)	1.1 C (2.0 F)	114 years	42 of 100 (Notable)
9 September 2015	Charlotteburg Rsvr, US	daily high max	34.4 C (93.9 F)	1.1 C (2.0 F)	100 years	42 of 100 (Notable)
9 September 2015	W Chester 2 NW, US	daily high max	34.4 C (93.9 F)	1.1 C (2.0 F)	100 years	42 of 100 (Notable)
9 September 2015	Stamford 1, US	daily high min	23.3 C (73.9 F)	1.1 C (2.0 F)	102 years	42 of 100 (Notable)
9 September 2015	Dallas FAA AP, US	daily rain	67.8 mm (2.7 in)	36.8 mm (1.4 in)	54 years	42 of 100 (Notable)
9 September 2015	Narrogin, AU	daily high max	28.1 C (82.6 F)	2.1 C (3.8 F)	85 years	41 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

1806 to 2015

Records set or tied on this calendar date in each year from 1806 to 2015. 2015 had 806 records.

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

Records on 09-09 in each year
Year	Records
1806	1
1812	1
1813	1
1814	2
1834	1
1836	1
1845	1
1847	1
1848	1
1849	2
1850	1
1854	1
1864	2
1865	3
1866	3
1867	1
1869	1
1871	1
1873	1
1878	1
1879	1
1880	2
1883	3
1884	4
1886	1
1888	4
1889	1
1890	1
1891	1
1892	4
1893	4
1894	3
1895	7
1897	3
1898	5
1899	6
1900	1
1901	4
1902	5
1903	14
1904	9
1905	8
1906	24
1907	9
1908	5
1909	9
1910	17
1911	27
1912	48
1913	12
1914	69
1915	48
1916	16
1917	44
1918	40
1919	74
1920	145
1921	92
1922	115
1923	58
1924	232
1925	248
1926	168
1927	246
1928	108
1929	362
1930	211
1931	558
1932	302
1933	433
1934	256
1935	461
1936	297
1937	242
1938	416
1939	429
1940	294
1941	763
1942	357
1943	596
1944	719
1945	355
1946	366
1947	465
1948	307
1949	1,407
1950	426
1951	338
1952	511
1953	344
1954	283
1955	608
1956	742
1957	390
1958	419
1959	736
1960	492
1961	383
1962	847
1963	400
1964	488
1965	326
1966	366
1967	367
1968	440
1969	603
1970	584
1971	498
1972	464
1973	517
1974	689
1975	555
1976	773
1977	410
1978	702
1979	878
1980	829
1981	1,011
1982	814
1983	958
1984	1,304
1985	1,269
1986	1,026
1987	676
1988	836
1989	983
1990	762
1991	882
1992	620
1993	886
1994	892
1995	937
1996	809
1997	837
1998	1,667
1999	1,013
2000	811
2001	1,647
2002	1,355
2003	786
2004	1,603
2005	1,068
2006	917
2007	948
2008	1,161
2009	792
2010	1,049
2011	1,328
2012	681
2013	974
2014	590
2015	806
2016	1,210
2017	661
2018	876
2019	953
2020	2,579
2021	1,458
2022	1,094
2023	1,222
2024	1,146
2025	520
2026	815

Download the Data

Data for records on 2015-09-09: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 20	550
20 to 40	20
40 to 60	3
60 to 80	0
80 to 100	1
100 to 120	1