Weather Records on 15 September 2007

946 weather records were set or tied worldwide on 15 September 2007. Highest significance: Mt Airy 2 W, US.

Key Facts for 15 September 2007

On 15 September 2007, 946 weather records were set or tied at long-record stations worldwide.
273 were record highs and 519 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 13 monthly and 932 daily.
Mt Airy 2 W set a daily record precipitation of 103.6 mm (4.1 in) on 15 September 2007.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 410 records.

Record Map

946 stations

946 station records on 15 September 2007 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 2007: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mt Airy 2 W	United States	Record daily precipitation	103.6 mm (4.1 in)	74 of 100 (Major)
Elkin	United States	Record daily precipitation	112.5 mm (4.4 in)	65 of 100 (Major)
Bluff Lake	United States	Record daily precipitation	95.3 mm (3.8 in)	61 of 100 (Major)
Poretskoye	Russia	Record daily precipitation	35.9 mm (1.4 in)	56 of 100 (Notable)
Valley Head	United States	Record daily precipitation	94.0 mm (3.7 in)	55 of 100 (Notable)
N Wilkesboro	United States	Record daily precipitation	68.1 mm (2.7 in)	54 of 100 (Notable)
Kailua 446	United States	Record low maximum temperature	20.6 C (69.1 F)	51 of 100 (Notable)
Woolwine 1 SE	United States	Record daily precipitation	104.6 mm (4.1 in)	48 of 100 (Notable)
Washington	United States	Record low minimum temperature	0.0 C (32.0 F)	46 of 100 (Notable)
Cresco 1 NE	United States	Record low minimum temperature	-1.7 C (28.9 F)	45 of 100 (Notable)
Aberdeen	United States	Record daily precipitation	58.7 mm (2.3 in)	45 of 100 (Notable)
Chatham	United States	Record daily precipitation	63.5 mm (2.5 in)	45 of 100 (Notable)
Dodgeville Wwtp	United States	Record low minimum temperature	0.0 C (32.0 F)	45 of 100 (Notable)
Hayward Rs	United States	Record low minimum temperature	-6.1 C (21.0 F)	45 of 100 (Notable)
Minonk	United States	Record low minimum temperature	0.0 C (32.0 F)	44 of 100 (Notable)
Cedar Rapids #1	United States	Record low minimum temperature	0.0 C (32.0 F)	44 of 100 (Notable)
Charles City	United States	Record low minimum temperature	-1.7 C (28.9 F)	44 of 100 (Notable)
Osceola	United States	Record low minimum temperature	-0.6 C (30.9 F)	44 of 100 (Notable)
Postville	United States	Record low minimum temperature	-1.7 C (28.9 F)	44 of 100 (Notable)
Mt Pleasant 1 SW	United States	Record low minimum temperature	1.7 C (35.1 F)	43 of 100 (Notable)
Winona	United States	Record low minimum temperature	1.1 C (34.0 F)	43 of 100 (Notable)
Smithfield	United States	Record daily precipitation	101.6 mm (4.0 in)	43 of 100 (Notable)
Lake Mills Wwtp	United States	Record low minimum temperature	1.1 C (34.0 F)	43 of 100 (Notable)
Stevens Pt	United States	Record low minimum temperature	-1.7 C (28.9 F)	43 of 100 (Notable)
Porfirio Diaz	Mexico	Record daily precipitation	118.9 mm (4.7 in)	42 of 100 (Notable)
Babuskin	Russia	Record high minimum temperature	12.5 C (54.5 F)	42 of 100 (Notable)
Morjarv	Sweden	Record daily precipitation	29.9 mm (1.2 in)	42 of 100 (Notable)
Dixon Wwtp	United States	Record low minimum temperature	1.1 C (34.0 F)	42 of 100 (Notable)
Monmouth	United States	Record low minimum temperature	1.1 C (34.0 F)	42 of 100 (Notable)
Tuscola	United States	Record low minimum temperature	2.8 C (37.0 F)	42 of 100 (Notable)
Iowa City	United States	Record low minimum temperature	0.6 C (33.1 F)	42 of 100 (Notable)
Osage	United States	Record low minimum temperature	0.0 C (32.0 F)	42 of 100 (Notable)
Vinton	United States	Record low minimum temperature	-0.6 C (30.9 F)	42 of 100 (Notable)
Ottawa	United States	Record low maximum temperature	13.3 C (55.9 F)	42 of 100 (Notable)
Grand Meadow	United States	Record low minimum temperature	-1.7 C (28.9 F)	42 of 100 (Notable)
Zumbrota	United States	Record low minimum temperature	-1.7 C (28.9 F)	42 of 100 (Notable)
Rocky Mt	United States	Record daily precipitation	55.9 mm (2.2 in)	42 of 100 (Notable)
Elkhorn	United States	Record low minimum temperature	2.8 C (37.0 F)	42 of 100 (Notable)
Lancaster 4 WSW	United States	Record low minimum temperature	0.6 C (33.1 F)	42 of 100 (Notable)
Mather 3 NW	United States	Record low minimum temperature	-1.7 C (28.9 F)	42 of 100 (Notable)
Superior	United States	Record low minimum temperature	-1.1 C (30.0 F)	42 of 100 (Notable)
Ixcamilpa (Cfe)	Mexico	Record low maximum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Tombstone	United States	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Pontiac	United States	Record low minimum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Marshalltown	United States	Record low minimum temperature	0.0 C (32.0 F)	41 of 100 (Notable)
New Hampton	United States	Record low minimum temperature	-0.6 C (30.9 F)	41 of 100 (Notable)
Minneapolis	United States	Record low maximum temperature	13.3 C (55.9 F)	41 of 100 (Notable)
Caledonia	United States	Record low minimum temperature	0.0 C (32.0 F)	41 of 100 (Notable)
St Peter	United States	Record low minimum temperature	0.0 C (32.0 F)	41 of 100 (Notable)
Avon	United States	Record low maximum temperature	13.9 C (57.0 F)	41 of 100 (Notable)
Sheboygan	United States	Record low minimum temperature	3.9 C (39.0 F)	41 of 100 (Notable)
Burlington Muni AP	United States	Record low minimum temperature	3.3 C (37.9 F)	41 of 100 (Notable)
Clifton	United States	Record high minimum temperature	23.3 C (73.9 F)	40 of 100 (Notable)
Lake City	United States	Record high minimum temperature	7.2 C (45.0 F)	40 of 100 (Notable)
Chickamauga 2 SW	United States	Record daily precipitation	78.5 mm (3.1 in)	40 of 100 (Notable)
Charleston	United States	Record low minimum temperature	3.9 C (39.0 F)	40 of 100 (Notable)
Griggsville	United States	Record low minimum temperature	2.8 C (37.0 F)	40 of 100 (Notable)
Audubon	United States	Record low minimum temperature	-1.1 C (30.0 F)	40 of 100 (Notable)
Webster City	United States	Record low minimum temperature	-1.1 C (30.0 F)	40 of 100 (Notable)
Williamsburg 1E	United States	Record low minimum temperature	0.6 C (33.1 F)	40 of 100 (Notable)

Counts by Type and Timescale

946 records

Records set or tied on 15 September 2007 by type: Highest daily maximum 82, Lowest daily maximum 145, Highest daily minimum 191, Lowest daily minimum 374, Heaviest daily rainfall 153, Deepest snow cover 1.

Records on 15 September 2007 by type
Record type	Records
Highest daily maximum	82
Lowest daily maximum	145
Highest daily minimum	191
Lowest daily minimum	374
Heaviest daily rainfall	153
Heaviest daily snowfall	0
Deepest snow cover	1

Records on 15 September 2007 by timescale: all-time 1, monthly 13, daily 932.

How Much Records Were Beaten By

719 broken records

Margins by which the 719 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.2. Ties are not counted.

Top 20 by Significance

15 September 2007

Top 20 records on 15 September 2007 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 2007	Mt Airy 2 W, US	daily rain	103.6 mm (4.1 in)	54.3 mm (2.1 in)	106 years	74 of 100 (Major)
15 September 2007	Elkin, US	daily rain	112.5 mm (4.4 in)	76.2 mm (3.0 in)	56 years	65 of 100 (Major)
15 September 2007	Bluff Lake, US	daily rain	95.3 mm (3.8 in)	70.7 mm (2.8 in)	54 years	61 of 100 (Major)
15 September 2007	Poretskoye, RU	daily rain	35.9 mm (1.4 in)	12.1 mm (0.5 in)	77 years	56 of 100 (Notable)
15 September 2007	Valley Head, US	daily rain	94.0 mm (3.7 in)	25.4 mm (1.0 in)	106 years	55 of 100 (Notable)
15 September 2007	N Wilkesboro, US	daily rain	68.1 mm (2.7 in)	38.6 mm (1.5 in)	78 years	54 of 100 (Notable)
15 September 2007	Kailua 446, US	daily low max	20.6 C (69.1 F)	2.2 C (4.0 F)	85 years	51 of 100 (Notable)
15 September 2007	Woolwine 1 SE, US	daily rain	104.6 mm (4.1 in)	74.6 mm (2.9 in)	49 years	48 of 100 (Notable)
15 September 2007	Washington, US	daily low min	0.0 C (32.0 F)	3.3 C (5.9 F)	102 years	46 of 100 (Notable)
15 September 2007	Cresco 1 NE, US	daily low min	-1.7 C (28.9 F)	2.8 C (5.0 F)	102 years	45 of 100 (Notable)
15 September 2007	Aberdeen, US	daily rain	58.7 mm (2.3 in)	12.2 mm (0.5 in)	94 years	45 of 100 (Notable)
15 September 2007	Chatham, US	daily rain	63.5 mm (2.5 in)	35.6 mm (1.4 in)	72 years	45 of 100 (Notable)
15 September 2007	Dodgeville Wwtp, US	daily low min	0.0 C (32.0 F)	2.8 C (5.0 F)	102 years	45 of 100 (Notable)
15 September 2007	Hayward Rs, US	daily low min	-6.1 C (21.0 F)	3.3 C (5.9 F)	102 years	45 of 100 (Notable)
15 September 2007	Minonk, US	daily low min	0.0 C (32.0 F)	2.2 C (4.0 F)	102 years	44 of 100 (Notable)
15 September 2007	Cedar Rapids #1, US	daily low min	0.0 C (32.0 F)	2.2 C (4.0 F)	102 years	44 of 100 (Notable)
15 September 2007	Charles City, US	daily low min	-1.7 C (28.9 F)	2.3 C (4.1 F)	102 years	44 of 100 (Notable)
15 September 2007	Osceola, US	daily low min	-0.6 C (30.9 F)	2.3 C (4.1 F)	102 years	44 of 100 (Notable)
15 September 2007	Postville, US	daily low min	-1.7 C (28.9 F)	3.9 C (7.0 F)	90 years	44 of 100 (Notable)
15 September 2007	Mt Pleasant 1 SW, US	daily low min	1.7 C (35.1 F)	1.6 C (2.9 F)	102 years	43 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

1797 to 2007

Records set or tied on this calendar date in each year from 1797 to 2007. 2007 had 946 records.

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

Records on 09-15 in each year
Year	Records
1797	1
1803	1
1806	2
1810	1
1816	1
1818	1
1823	2
1833	1
1836	1
1837	2
1839	1
1841	1
1848	1
1850	1
1851	1
1854	2
1856	1
1857	1
1859	1
1864	1
1865	2
1866	1
1867	2
1868	1
1869	1
1872	1
1873	2
1876	2
1877	2
1880	1
1881	1
1882	6
1884	3
1885	4
1886	2
1887	3
1888	1
1889	5
1890	1
1894	4
1895	1
1897	1
1898	3
1899	3
1900	1
1901	12
1902	7
1903	31
1904	30
1905	16
1906	6
1907	7
1908	16
1909	16
1910	2
1911	40
1912	64
1913	43
1914	18
1915	94
1916	44
1917	50
1918	50
1919	52
1920	164
1921	122
1922	53
1923	193
1924	103
1925	112
1926	134
1927	539
1928	86
1929	99
1930	235
1931	422
1932	295
1933	322
1934	351
1935	463
1936	460
1937	337
1938	247
1939	1,098
1940	181
1941	276
1942	278
1943	360
1944	396
1945	418
1946	411
1947	621
1948	557
1949	523
1950	750
1951	283
1952	455
1953	400
1954	518
1955	532
1956	646
1957	449
1958	294
1959	844
1960	410
1961	586
1962	557
1963	455
1964	839
1965	614
1966	534
1967	578
1968	429
1969	362
1970	1,157
1971	598
1972	356
1973	774
1974	386
1975	739
1976	667
1977	400
1978	628
1979	1,022
1980	563
1981	613
1982	1,315
1983	756
1984	766
1985	764
1986	928
1987	719
1988	818
1989	955
1990	911
1991	1,165
1992	919
1993	2,227
1994	1,363
1995	723
1996	1,212
1997	1,177
1998	1,768
1999	858
2000	1,175
2001	837
2002	1,212
2003	855
2004	893
2005	1,123
2006	1,042
2007	946
2008	1,153
2009	773
2010	913
2011	1,170
2012	568
2013	854
2014	443
2015	997
2016	988
2017	825
2018	874
2019	538
2020	785
2021	467
2022	392
2023	507
2024	681
2025	503
2026	779

Download the Data

Data for records on 2007-09-15: 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 10	652
10 to 20	40
20 to 30	10
30 to 40	5
40 to 50	1
50 to 60	5
60 to 70	2
70 to 80	4