Weather Records on 15 September 1945

418 weather records were set or tied worldwide on 15 September 1945. Highest significance: Montreal River, CA.

Key Facts for 15 September 1945

On 15 September 1945, 418 weather records were set or tied at long-record stations worldwide.
86 were record highs and 178 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 415 daily.
Montreal River set a daily record precipitation of 53.1 mm (2.1 in) on 15 September 1945.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 413 records.

Record Map

418 stations

418 station records on 15 September 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Montreal River	Canada	Record daily precipitation	53.1 mm (2.1 in)	51 of 100 (Notable)
Deogarh (Bamra)	India	Record daily precipitation	90.2 mm (3.6 in)	51 of 100 (Notable)
Camden 3 W	United States	Record daily precipitation	77.5 mm (3.1 in)	48 of 100 (Notable)
Kopati(Kaupati)	India	Record daily precipitation	76.2 mm (3.0 in)	45 of 100 (Notable)
Addison	United States	Record daily precipitation	43.9 mm (1.7 in)	44 of 100 (Notable)
Pinehurst Sthrn Pines	United States	Record daily precipitation	89.7 mm (3.5 in)	42 of 100 (Notable)
Raleigh State UNIV	United States	Record daily precipitation	74.2 mm (2.9 in)	42 of 100 (Notable)
Ebor (Kotupna)	Australia	Record daily precipitation	47.8 mm (1.9 in)	37 of 100 (Notable)
Dhing	India	Record daily precipitation	97.8 mm (3.9 in)	36 of 100 (Notable)
Cuerindi	Australia	Record daily precipitation	29.5 mm (1.2 in)	35 of 100 (Notable)
Raquette Lake	United States	Record daily precipitation	88.9 mm (3.5 in)	35 of 100 (Notable)
Chapel Hill 2 W	United States	Record daily precipitation	54.4 mm (2.1 in)	34 of 100 (Routine)
Macdonald College	Canada	Record daily precipitation	34.8 mm (1.4 in)	33 of 100 (Routine)
Wollomombi (Wallamumbi)	Australia	Record daily precipitation	40.1 mm (1.6 in)	31 of 100 (Routine)
Casino Airport	Australia	Record daily precipitation	50.3 mm (2.0 in)	31 of 100 (Routine)
Balipara(Addibar) Sr	India	Record daily precipitation	118.1 mm (4.6 in)	31 of 100 (Routine)
Newell	United States	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
St Marys	United States	Record daily precipitation	45.2 mm (1.8 in)	31 of 100 (Routine)
Lowville	United States	Record daily precipitation	37.6 mm (1.5 in)	30 of 100 (Routine)
Emporium 1 E	United States	Record daily precipitation	54.1 mm (2.1 in)	30 of 100 (Routine)
Aberfoyle	Australia	Record daily precipitation	31.0 mm (1.2 in)	29 of 100 (Routine)
Alfred	United States	Record daily precipitation	49.8 mm (2.0 in)	29 of 100 (Routine)
Cleburne	United States	Record low minimum temperature	8.3 C (46.9 F)	29 of 100 (Routine)
Alice Springs Post Office	Australia	Record high minimum temperature	21.1 C (70.0 F)	28 of 100 (Routine)
Southern Pines 2 W	United States	Record daily precipitation	74.9 mm (2.9 in)	28 of 100 (Routine)
Lake Moraine	United States	Record high minimum temperature	11.7 C (53.1 F)	27 of 100 (Routine)
Santa Fe	United States	Record high maximum temperature	28.9 C (84.0 F)	27 of 100 (Routine)
Geneva Exp STN	United States	Record daily precipitation	56.6 mm (2.2 in)	27 of 100 (Routine)
Khariar	India	Record daily precipitation	57.2 mm (2.3 in)	26 of 100 (Routine)
Decatur	United States	Record low maximum temperature	20.0 C (68.0 F)	26 of 100 (Routine)
Savannah 6 SW	United States	Record low maximum temperature	18.9 C (66.0 F)	26 of 100 (Routine)
Kaufman 3 SE	United States	Record low minimum temperature	7.2 C (45.0 F)	26 of 100 (Routine)
New Braunfels	United States	Record low minimum temperature	10.0 C (50.0 F)	26 of 100 (Routine)
Jeogla Station	Australia	Record daily precipitation	38.4 mm (1.5 in)	25 of 100 (Routine)
Mexico	United States	Record low maximum temperature	13.9 C (57.0 F)	25 of 100 (Routine)
Bolivar	United States	Record daily precipitation	29.0 mm (1.1 in)	25 of 100 (Routine)
Indian Lake 2SW	United States	Record daily precipitation	65.3 mm (2.6 in)	25 of 100 (Routine)
Tishomingo Natl Wr	United States	Record low minimum temperature	6.7 C (44.1 F)	25 of 100 (Routine)
Bonham 3NNE	United States	Record low minimum temperature	6.7 C (44.1 F)	25 of 100 (Routine)
Jalugudi	India	Record daily precipitation	108.7 mm (4.3 in)	24 of 100 (Routine)
Durant	United States	Record low minimum temperature	5.0 C (41.0 F)	24 of 100 (Routine)
Brownsville	United States	Record low maximum temperature	19.4 C (66.9 F)	24 of 100 (Routine)
Ballinger 2 NW	United States	Record low minimum temperature	8.3 C (46.9 F)	24 of 100 (Routine)
Blanco	United States	Record low minimum temperature	7.8 C (46.0 F)	24 of 100 (Routine)
Hillsboro	United States	Record low minimum temperature	9.4 C (48.9 F)	24 of 100 (Routine)
Ebor (Wongwibinda)	Australia	Record daily precipitation	32.3 mm (1.3 in)	23 of 100 (Routine)
Tezpur	India	Record daily precipitation	82.3 mm (3.2 in)	23 of 100 (Routine)
Adirampatanam	India	Record daily precipitation	50.8 mm (2.0 in)	23 of 100 (Routine)
Roldal	Norway	Record daily precipitation	41.5 mm (1.6 in)	23 of 100 (Routine)
Lynnville 4 SSW	United States	Record low maximum temperature	20.0 C (68.0 F)	23 of 100 (Routine)
Eastland	United States	Record low minimum temperature	6.7 C (44.1 F)	23 of 100 (Routine)
McKinney Muni AP	United States	Record low minimum temperature	8.9 C (48.0 F)	23 of 100 (Routine)
Rock Island	United States	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Orlando Executive AP	United States	Record daily precipitation	41.7 mm (1.6 in)	23 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record low maximum temperature	13.3 C (55.9 F)	23 of 100 (Routine)
Pal-Lahara	India	Record daily precipitation	53.3 mm (2.1 in)	22 of 100 (Routine)
Kulattur	India	Record daily precipitation	36.1 mm (1.4 in)	22 of 100 (Routine)
Avon Park 2 W	United States	Record low maximum temperature	28.3 C (82.9 F)	22 of 100 (Routine)
Crookston NW Exp STN	United States	Record low minimum temperature	-1.1 C (30.0 F)	22 of 100 (Routine)
Skaneateles	United States	Record daily precipitation	42.9 mm (1.7 in)	22 of 100 (Routine)

Counts by Type and Timescale

418 records

Records set or tied on 15 September 1945 by type: Highest daily maximum 33, Lowest daily maximum 77, Highest daily minimum 53, Lowest daily minimum 101, Heaviest daily rainfall 153, Heaviest daily snowfall 1.

Records on 15 September 1945 by type
Record type	Records
Highest daily maximum	33
Lowest daily maximum	77
Highest daily minimum	53
Lowest daily minimum	101
Heaviest daily rainfall	153
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 15 September 1945 by timescale: all-time 0, monthly 3, daily 415.

How Much Records Were Beaten By

349 broken records

Margins by which the 349 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 63.0. Ties are not counted.

Top 20 by Significance

15 September 1945

Top 20 records on 15 September 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1945	Montreal River, CA	daily rain	53.1 mm (2.1 in)	42.4 mm (1.7 in)	27 years	51 of 100 (Notable)
15 September 1945	Deogarh (Bamra), IN	daily rain	90.2 mm (3.6 in)	62.0 mm (2.4 in)	26 years	51 of 100 (Notable)
15 September 1945	Camden 3 W, US	daily rain	77.5 mm (3.1 in)	29.2 mm (1.1 in)	89 years	48 of 100 (Notable)
15 September 1945	Kopati(Kaupati), IN	daily rain	76.2 mm (3.0 in)	54.4 mm (2.1 in)	34 years	45 of 100 (Notable)
15 September 1945	Addison, US	daily rain	43.9 mm (1.7 in)	23.6 mm (0.9 in)	51 years	44 of 100 (Notable)
15 September 1945	Pinehurst Sthrn Pines, US	daily rain	89.7 mm (3.5 in)	63.0 mm (2.5 in)	28 years	42 of 100 (Notable)
15 September 1945	Raleigh State UNIV, US	daily rain	74.2 mm (2.9 in)	47.0 mm (1.9 in)	28 years	42 of 100 (Notable)
15 September 1945	Ebor (Kotupna), AU	daily rain	47.8 mm (1.9 in)	24.9 mm (1.0 in)	24 years	37 of 100 (Notable)
15 September 1945	Dhing, IN	daily rain	97.8 mm (3.9 in)	58.7 mm (2.3 in)	8 years	36 of 100 (Notable)
15 September 1945	Cuerindi, AU	daily rain	29.5 mm (1.2 in)	13.8 mm (0.5 in)	54 years	35 of 100 (Notable)
15 September 1945	Raquette Lake, US	monthly rain	88.9 mm (3.5 in)	5.8 mm (0.23 in)	50 years	35 of 100 (Notable)
15 September 1945	Chapel Hill 2 W, US	daily rain	54.4 mm (2.1 in)	37.1 mm (1.5 in)	20 years	34 of 100 (Routine)
15 September 1945	Macdonald College, CA	daily rain	34.8 mm (1.4 in)	18.0 mm (0.7 in)	34 years	33 of 100 (Routine)
15 September 1945	Wollomombi (Wallamumbi), AU	daily rain	40.1 mm (1.6 in)	18.5 mm (0.7 in)	24 years	31 of 100 (Routine)
15 September 1945	Casino Airport, AU	daily rain	50.3 mm (2.0 in)	16.0 mm (0.6 in)	24 years	31 of 100 (Routine)
15 September 1945	Balipara(Addibar) Sr, IN	daily rain	118.1 mm (4.6 in)	62.0 mm (2.4 in)	4 years	31 of 100 (Routine)
15 September 1945	Newell, US	daily rain	25.4 mm (1.0 in)	22.9 mm (0.9 in)	7 years	31 of 100 (Routine)
15 September 1945	St Marys, US	daily rain	45.2 mm (1.8 in)	24.1 mm (0.9 in)	28 years	31 of 100 (Routine)
15 September 1945	Lowville, US	daily rain	37.6 mm (1.5 in)	19.3 mm (0.8 in)	10 years	30 of 100 (Routine)
15 September 1945	Emporium 1 E, US	monthly rain	54.1 mm (2.1 in)	2.5 mm (0.10 in)	46 years	30 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

1797 to 1945

Records set or tied on this calendar date in each year from 1797 to 1945. 1945 had 418 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 1945-09-15: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	295
10 to 20	31
20 to 30	11
30 to 40	4
40 to 50	3
50 to 60	2
60 to 70	3