Weather Records on 2 September 2017

1,047 weather records were set or tied worldwide on 2 September 2017. Highest significance: Danville, US.

Key Facts for 2 September 2017

On 2 September 2017, 1,047 weather records were set or tied at long-record stations worldwide.
517 were record highs and 415 were record lows, counting maximum and minimum temperature.
By timescale, 26 were all-time records, 131 monthly and 890 daily.
Danville set a daily record precipitation of 114.3 mm (4.5 in) on 2 September 2017.
Across 167 earlier years (1797 to 2026) the same calendar date averaged 433 records.

Record Map

1,047 stations

1,047 station records on 2 September 2017 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 2 September 2017: highest significance records shown on the map
Station	Country	Type	Value	Significance
Danville	United States	Record daily precipitation	114.3 mm (4.5 in)	69 of 100 (Major)
Kiefersfelden-Gach	Germany	Record daily precipitation	66.1 mm (2.6 in)	59 of 100 (Notable)
San Francisco Intl AP	United States	Record high minimum temperature	22.2 C (72.0 F)	59 of 100 (Notable)
Coimbatore/Peelamed	India	Record daily precipitation	113.0 mm (4.4 in)	57 of 100 (Notable)
Hopkinsville	United States	Record daily precipitation	75.7 mm (3.0 in)	57 of 100 (Notable)
Taylorsville 2SW	United States	Record daily precipitation	96.5 mm (3.8 in)	57 of 100 (Notable)
Ft Bragg 5 N	United States	Record high maximum temperature	30.0 C (86.0 F)	56 of 100 (Notable)
King City	United States	Record high maximum temperature	46.1 C (115.0 F)	56 of 100 (Notable)
San Francisco Dwtn	United States	Record high minimum temperature	23.9 C (75.0 F)	55 of 100 (Notable)
Scotia	United States	Record high maximum temperature	40.0 C (104.0 F)	53 of 100 (Notable)
Shepherdsville 5NE	United States	Record daily precipitation	104.4 mm (4.1 in)	53 of 100 (Notable)
Cape May 2 NW	United States	Record daily precipitation	38.6 mm (1.5 in)	53 of 100 (Notable)
Barren Rvr Lake	United States	Record daily precipitation	80.8 mm (3.2 in)	51 of 100 (Notable)
Dayton Mcd	United States	Record low maximum temperature	14.4 C (57.9 F)	51 of 100 (Notable)
Kealakekua 26.2	United States	Record high maximum temperature	30.6 C (87.1 F)	51 of 100 (Notable)
Efremov	Russia	Record daily precipitation	30.2 mm (1.2 in)	50 of 100 (Notable)
Warsaw Markland Dam	United States	Record daily precipitation	96.5 mm (3.8 in)	49 of 100 (Notable)
Ash Mtn	United States	Record high minimum temperature	28.3 C (82.9 F)	48 of 100 (Notable)
Martinsburg E W Virginia Rgnl	United States	Record low maximum temperature	14.4 C (57.9 F)	48 of 100 (Notable)
Ft Ross	United States	Record high minimum temperature	15.0 C (59.0 F)	47 of 100 (Notable)
Calistoga	United States	Record high maximum temperature	44.4 C (111.9 F)	46 of 100 (Notable)
Elsinore	United States	Record high minimum temperature	24.4 C (75.9 F)	46 of 100 (Notable)
Elizabethtown Ksp#4	United States	Record daily precipitation	107.7 mm (4.2 in)	46 of 100 (Notable)
Frankfort State Police	United States	Record daily precipitation	89.9 mm (3.5 in)	46 of 100 (Notable)
Salinas AP	United States	Record high maximum temperature	42.8 C (109.0 F)	46 of 100 (Notable)
Springfield Abraham Lincoln Ca	United States	Record low minimum temperature	5.6 C (42.1 F)	46 of 100 (Notable)
Berkeley	United States	Record high minimum temperature	23.3 C (73.9 F)	45 of 100 (Notable)
Cachuma Lake	United States	Record high minimum temperature	21.7 C (71.1 F)	45 of 100 (Notable)
Calistoga	United States	Record high minimum temperature	17.8 C (64.0 F)	45 of 100 (Notable)
San Francisco Oceanside	United States	Record high maximum temperature	32.8 C (91.0 F)	45 of 100 (Notable)
San Luis Obispo Poly	United States	Record high minimum temperature	23.3 C (73.9 F)	45 of 100 (Notable)
Condon	United States	Record high minimum temperature	16.1 C (61.0 F)	45 of 100 (Notable)
Mittenwald-Buckelwiesen	Germany	Record daily precipitation	45.4 mm (1.8 in)	44 of 100 (Notable)
Skriveri	Latvia	Record daily precipitation	35.1 mm (1.4 in)	44 of 100 (Notable)
Lompoc	United States	Record high minimum temperature	22.8 C (73.0 F)	44 of 100 (Notable)
Nolin Rvr Lake	United States	Record daily precipitation	66.5 mm (2.6 in)	44 of 100 (Notable)
Washington Court House	United States	Record low maximum temperature	13.9 C (57.0 F)	44 of 100 (Notable)
Louisa	United States	Record low maximum temperature	15.6 C (60.1 F)	44 of 100 (Notable)
Carmel Valley	United States	Record high maximum temperature	43.9 C (111.0 F)	43 of 100 (Notable)
Merced	United States	Record high minimum temperature	22.2 C (72.0 F)	43 of 100 (Notable)
Monroe City	United States	Record low minimum temperature	7.2 C (45.0 F)	43 of 100 (Notable)
Tarpon Spgs Sewage Plt	United States	Record low maximum temperature	27.2 C (81.0 F)	42 of 100 (Notable)
Lincoln	United States	Record low minimum temperature	5.0 C (41.0 F)	42 of 100 (Notable)
Minonk	United States	Record low minimum temperature	5.0 C (41.0 F)	42 of 100 (Notable)
Hebgen Dam	United States	Record high maximum temperature	31.1 C (88.0 F)	42 of 100 (Notable)
Missoula 6 NW WFO	United States	Record high maximum temperature	36.1 C (97.0 F)	42 of 100 (Notable)
Marysville	United States	Record low maximum temperature	15.6 C (60.1 F)	42 of 100 (Notable)
Portsmouth-Sciotoville	United States	Record low maximum temperature	15.0 C (59.0 F)	42 of 100 (Notable)
Waynesboro	United States	Record low maximum temperature	19.4 C (66.9 F)	42 of 100 (Notable)
Graton	United States	Record high minimum temperature	14.4 C (57.9 F)	41 of 100 (Notable)
Hanford 1 S	United States	Record high maximum temperature	40.6 C (105.1 F)	41 of 100 (Notable)
Turlock #2	United States	Record high minimum temperature	23.9 C (75.0 F)	41 of 100 (Notable)
Olney 2S	United States	Record low maximum temperature	20.0 C (68.0 F)	41 of 100 (Notable)
Mt Morris 2W	United States	Record low minimum temperature	4.4 C (39.9 F)	41 of 100 (Notable)
Knoxville AP	United States	Record low maximum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Troicko-Pecherskoe	Russia	Record high minimum temperature	14.1 C (57.4 F)	40 of 100 (Notable)
Salinas #2	United States	Record high maximum temperature	41.7 C (107.1 F)	40 of 100 (Notable)
Dover	United States	Record low maximum temperature	18.3 C (64.9 F)	40 of 100 (Notable)
Bowling Green	United States	Record daily precipitation	55.4 mm (2.2 in)	40 of 100 (Notable)
Solomons	United States	Record low maximum temperature	18.9 C (66.0 F)	40 of 100 (Notable)

Counts by Type and Timescale

1,047 records

Records set or tied on 2 September 2017 by type: Highest daily maximum 278, Lowest daily maximum 292, Highest daily minimum 239, Lowest daily minimum 123, Heaviest daily rainfall 115.

Records on 2 September 2017 by type
Record type	Records
Highest daily maximum	278
Lowest daily maximum	292
Highest daily minimum	239
Lowest daily minimum	123
Heaviest daily rainfall	115
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 2 September 2017 by timescale: all-time 26, monthly 131, daily 890.

How Much Records Were Beaten By

789 broken records

Margins by which the 789 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 96.0. Ties are not counted.

Top 20 by Significance

2 September 2017

Top 20 records on 2 September 2017 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
2 September 2017	Danville, US	daily rain	114.3 mm (4.5 in)	60.7 mm (2.4 in)	72 years	69 of 100 (Major)
2 September 2017	Kiefersfelden-Gach, DE	daily rain	66.1 mm (2.6 in)	28.6 mm (1.1 in)	72 years	59 of 100 (Notable)
2 September 2017	San Francisco Intl AP, US	all-time high min	22.2 C (72.0 F)	2.8 C (5.0 F)	58 years	59 of 100 (Notable)
2 September 2017	Coimbatore/Peelamed, IN	daily rain	113.0 mm (4.4 in)	96.0 mm (3.8 in)	36 years	57 of 100 (Notable)
2 September 2017	Hopkinsville, US	daily rain	75.7 mm (3.0 in)	33.8 mm (1.3 in)	90 years	57 of 100 (Notable)
2 September 2017	Taylorsville 2SW, US	daily rain	96.5 mm (3.8 in)	48.2 mm (1.9 in)	55 years	57 of 100 (Notable)
2 September 2017	Ft Bragg 5 N, US	daily high max	30.0 C (86.0 F)	6.7 C (12.1 F)	76 years	56 of 100 (Notable)
2 September 2017	King City, US	all-time high max	46.1 C (115.0 F)	1.1 C (2.0 F)	86 years	56 of 100 (Notable)
2 September 2017	San Francisco Dwtn, US	all-time high min	23.9 C (75.0 F)	0.6 C (1.1 F)	77 years	55 of 100 (Notable)
2 September 2017	Scotia, US	all-time high max	40.0 C (104.0 F)	3.3 C (5.9 F)	52 years	53 of 100 (Notable)
2 September 2017	Shepherdsville 5NE, US	daily rain	104.4 mm (4.1 in)	61.7 mm (2.4 in)	35 years	53 of 100 (Notable)
2 September 2017	Cape May 2 NW, US	daily rain	38.6 mm (1.5 in)	21.6 mm (0.9 in)	116 years	53 of 100 (Notable)
2 September 2017	Barren Rvr Lake, US	daily rain	80.8 mm (3.2 in)	59.2 mm (2.3 in)	43 years	51 of 100 (Notable)
2 September 2017	Dayton Mcd, US	daily low max	14.4 C (57.9 F)	5.6 C (10.1 F)	107 years	51 of 100 (Notable)
2 September 2017	Kealakekua 26.2, US	daily high max	30.6 C (87.1 F)	1.7 C (3.1 F)	104 years	51 of 100 (Notable)
2 September 2017	Efremov, RU	daily rain	30.2 mm (1.2 in)	14.4 mm (0.6 in)	58 years	50 of 100 (Notable)
2 September 2017	Warsaw Markland Dam, US	daily rain	96.5 mm (3.8 in)	67.5 mm (2.7 in)	14 years	49 of 100 (Notable)
2 September 2017	Ash Mtn, US	monthly high min	28.3 C (82.9 F)	2.2 C (4.0 F)	79 years	48 of 100 (Notable)
2 September 2017	Martinsburg E W Virginia Rgnl, US	daily low max	14.4 C (57.9 F)	3.9 C (7.0 F)	123 years	48 of 100 (Notable)
2 September 2017	Ft Ross, US	daily high min	15.0 C (59.0 F)	1.7 C (3.1 F)	116 years	47 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 2017

Records set or tied on this calendar date in each year from 1797 to 2017. 2017 had 1,047 records.

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

Records on 09-02 in each year
Year	Records
1797	1
1800	1
1802	1
1808	1
1838	1
1841	1
1843	1
1850	1
1854	1
1855	1
1857	1
1860	3
1861	1
1864	1
1867	2
1869	2
1870	1
1871	2
1872	1
1875	1
1876	1
1877	3
1878	2
1879	1
1881	1
1883	1
1884	1
1885	4
1886	5
1888	1
1889	2
1890	5
1891	1
1892	5
1893	3
1894	4
1895	3
1896	4
1897	4
1898	8
1899	10
1900	3
1901	4
1902	5
1903	13
1904	6
1905	14
1906	25
1907	11
1908	58
1909	35
1910	13
1911	82
1912	37
1913	37
1914	16
1915	38
1916	26
1917	20
1918	31
1919	17
1920	39
1921	85
1922	46
1923	75
1924	212
1925	147
1926	215
1927	71
1928	203
1929	322
1930	194
1931	305
1932	473
1933	427
1934	537
1935	602
1936	391
1937	905
1938	376
1939	439
1940	224
1941	467
1942	389
1943	336
1944	353
1945	392
1946	635
1947	1,147
1948	431
1949	563
1950	745
1951	515
1952	698
1953	1,153
1954	721
1955	501
1956	440
1957	385
1958	348
1959	534
1960	448
1961	839
1962	318
1963	272
1964	679
1965	440
1966	362
1967	1,213
1968	493
1969	465
1970	553
1971	521
1972	743
1973	1,148
1974	1,294
1975	519
1976	835
1977	589
1978	484
1979	647
1980	697
1981	521
1982	672
1983	1,076
1984	598
1985	714
1986	860
1987	915
1988	1,284
1989	659
1990	675
1991	807
1992	1,117
1993	1,405
1994	1,291
1995	1,143
1996	604
1997	1,547
1998	1,263
1999	912
2000	1,931
2001	981
2002	805
2003	1,310
2004	679
2005	623
2006	1,238
2007	1,086
2008	1,229
2009	706
2010	1,081
2011	1,265
2012	885
2013	717
2014	650
2015	661
2016	621
2017	1,047
2018	473
2019	789
2020	701
2021	742
2022	991
2023	707
2024	923
2025	431
2026	866

Download the Data

Data for records on 2017-09-02: 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	761
20 to 40	18
40 to 60	4
60 to 80	5
80 to 100	1