Weather Records on 15 September 1951

283 weather records were set or tied worldwide on 15 September 1951. Highest significance: Cambridge Water Trmt P, US.

Key Facts for 15 September 1951

On 15 September 1951, 283 weather records were set or tied at long-record stations worldwide.
140 were record highs and 59 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 279 daily.
Cambridge Water Trmt P set a daily record precipitation of 128.5 mm (5.1 in) on 15 September 1951.
Across 170 earlier years (1797 to 2026) the same calendar date averaged 414 records.

Record Map

283 stations

283 station records on 15 September 1951 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 September 1951: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cambridge Water Trmt P	United States	Record daily precipitation	128.5 mm (5.1 in)	59 of 100 (Notable)
Orillia	Canada	Record daily precipitation	53.3 mm (2.1 in)	53 of 100 (Notable)
Titusville	United States	Record daily precipitation	137.7 mm (5.4 in)	48 of 100 (Notable)
Tenkasi	India	Record daily precipitation	42.4 mm (1.7 in)	44 of 100 (Notable)
Plant City	United States	Record daily precipitation	75.4 mm (3.0 in)	41 of 100 (Notable)
Riksgransen	Sweden	Record daily precipitation	36.0 mm (1.4 in)	39 of 100 (Notable)
Mercedes 6 SSE	United States	Record daily precipitation	90.9 mm (3.6 in)	39 of 100 (Notable)
Glen Boughton	Australia	Record daily precipitation	31.2 mm (1.2 in)	37 of 100 (Notable)
Hebbronville	United States	Record daily precipitation	111.8 mm (4.4 in)	37 of 100 (Notable)
Sarita 7 E	United States	Record daily precipitation	108.0 mm (4.3 in)	36 of 100 (Notable)
Stromsfoss Sluse	Norway	Record daily precipitation	30.9 mm (1.2 in)	35 of 100 (Notable)
Snow Hill 4 N	United States	Record daily precipitation	88.4 mm (3.5 in)	35 of 100 (Notable)
Weslaco	United States	Record daily precipitation	119.4 mm (4.7 in)	35 of 100 (Notable)
Attarikhat	India	Record daily precipitation	101.3 mm (4.0 in)	32 of 100 (Routine)
Chilliwack	Canada	Record high maximum temperature	33.3 C (91.9 F)	31 of 100 (Routine)
Orje	Norway	Record daily precipitation	29.6 mm (1.2 in)	31 of 100 (Routine)
Bridgeville 1 NW	United States	Record daily precipitation	55.4 mm (2.2 in)	31 of 100 (Routine)
Holtwood	United States	Record daily precipitation	62.5 mm (2.5 in)	31 of 100 (Routine)
Chilliwack	Canada	Record high minimum temperature	17.2 C (63.0 F)	30 of 100 (Routine)
Shencottah	India	Record daily precipitation	37.8 mm (1.5 in)	30 of 100 (Routine)
Milford 2 SE	United States	Record daily precipitation	45.0 mm (1.8 in)	30 of 100 (Routine)
Halden	Norway	Record daily precipitation	25.8 mm (1.0 in)	29 of 100 (Routine)
Ohotsk	Russia	Record low minimum temperature	-2.1 C (28.2 F)	29 of 100 (Routine)
Thalli	India	Record daily precipitation	57.2 mm (2.3 in)	27 of 100 (Routine)
Solomons	United States	Record daily precipitation	49.8 mm (2.0 in)	27 of 100 (Routine)
Velikie Luki	Russia	Record high maximum temperature	25.4 C (77.7 F)	26 of 100 (Routine)
Centralia	United States	Record high maximum temperature	33.3 C (91.9 F)	25 of 100 (Routine)
Ayikudi	India	Record daily precipitation	41.9 mm (1.6 in)	24 of 100 (Routine)
Joshimath	India	Record daily precipitation	32.5 mm (1.3 in)	24 of 100 (Routine)
Raiford State Prison	United States	Record daily precipitation	51.3 mm (2.0 in)	24 of 100 (Routine)
Lumber City	United States	Record daily precipitation	65.3 mm (2.6 in)	24 of 100 (Routine)
Harlingen	United States	Record daily precipitation	73.2 mm (2.9 in)	24 of 100 (Routine)
Agassiz Cda	Canada	Record high maximum temperature	33.3 C (91.9 F)	23 of 100 (Routine)
Gaspe	Canada	Record high minimum temperature	18.3 C (64.9 F)	23 of 100 (Routine)
Manginapudi	India	Record daily precipitation	49.3 mm (1.9 in)	23 of 100 (Routine)
Punalur	India	Record daily precipitation	61.0 mm (2.4 in)	23 of 100 (Routine)
Washington 2 ESE	United States	Record daily precipitation	67.3 mm (2.6 in)	23 of 100 (Routine)
Pottstown	United States	Record daily precipitation	39.1 mm (1.5 in)	23 of 100 (Routine)
Fort McPherson	Canada	Record high minimum temperature	7.8 C (46.0 F)	22 of 100 (Routine)
Easton	United States	Record daily precipitation	50.8 mm (2.0 in)	22 of 100 (Routine)
Dillon U of Montana Western	United States	Record low minimum temperature	-3.3 C (26.1 F)	22 of 100 (Routine)
Winchester 7 SE	United States	Record daily precipitation	38.6 mm (1.5 in)	22 of 100 (Routine)
Sedro-Woolley	United States	Record high maximum temperature	30.6 C (87.1 F)	22 of 100 (Routine)
Mourilyan Post Office	Australia	Record daily precipitation	28.2 mm (1.1 in)	21 of 100 (Routine)
Brome	Canada	Record daily precipitation	41.1 mm (1.6 in)	21 of 100 (Routine)
Tartu	Estonia	Record high minimum temperature	13.9 C (57.0 F)	21 of 100 (Routine)
Gospic	Croatia	Record daily precipitation	43.2 mm (1.7 in)	21 of 100 (Routine)
Winkelman 6 S	United States	Record high maximum temperature	38.9 C (102.0 F)	21 of 100 (Routine)
Miles City	United States	Record low minimum temperature	-1.1 C (30.0 F)	21 of 100 (Routine)
Union 3 SSE	United States	Record low maximum temperature	20.0 C (68.0 F)	21 of 100 (Routine)
Herberton White St	Australia	Record daily precipitation	10.2 mm (0.4 in)	20 of 100 (Routine)
Cheltenham 1 NW	United States	Record daily precipitation	24.9 mm (1.0 in)	20 of 100 (Routine)
Albany	Australia	Record high minimum temperature	13.9 C (57.0 F)	20 of 100 (Routine)
Livingston	United States	Record low minimum temperature	-2.8 C (27.0 F)	20 of 100 (Routine)
Hot Springs 2	United States	Record low maximum temperature	21.7 C (71.1 F)	20 of 100 (Routine)
Marshall	United States	Record low maximum temperature	20.6 C (69.1 F)	20 of 100 (Routine)
Drain	United States	Record high maximum temperature	35.6 C (96.1 F)	20 of 100 (Routine)
Riddle	United States	Record high maximum temperature	36.7 C (98.1 F)	20 of 100 (Routine)
Blanco	United States	Record low maximum temperature	23.9 C (75.0 F)	20 of 100 (Routine)
San Marcos	United States	Record low maximum temperature	25.6 C (78.1 F)	20 of 100 (Routine)

Counts by Type and Timescale

283 records

Records set or tied on 15 September 1951 by type: Highest daily maximum 97, Lowest daily maximum 29, Highest daily minimum 43, Lowest daily minimum 30, Heaviest daily rainfall 84.

Records on 15 September 1951 by type
Record type	Records
Highest daily maximum	97
Lowest daily maximum	29
Highest daily minimum	43
Lowest daily minimum	30
Heaviest daily rainfall	84
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 15 September 1951 by timescale: all-time 0, monthly 4, daily 279.

How Much Records Were Beaten By

222 broken records

Margins by which the 222 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 110.3. Ties are not counted.

Top 20 by Significance

15 September 1951

Top 20 records on 15 September 1951 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 September 1951	Cambridge Water Trmt P, US	daily rain	128.5 mm (5.1 in)	88.6 mm (3.5 in)	46 years	59 of 100 (Notable)
15 September 1951	Orillia, CA	daily rain	53.3 mm (2.1 in)	21.3 mm (0.8 in)	75 years	53 of 100 (Notable)
15 September 1951	Titusville, US	daily rain	137.7 mm (5.4 in)	110.3 mm (4.3 in)	12 years	48 of 100 (Notable)
15 September 1951	Tenkasi, IN	daily rain	42.4 mm (1.7 in)	28.7 mm (1.1 in)	38 years	44 of 100 (Notable)
15 September 1951	Plant City, US	daily rain	75.4 mm (3.0 in)	53.6 mm (2.1 in)	37 years	41 of 100 (Notable)
15 September 1951	Riksgransen, SE	daily rain	36.0 mm (1.4 in)	16.5 mm (0.6 in)	44 years	39 of 100 (Notable)
15 September 1951	Mercedes 6 SSE, US	daily rain	90.9 mm (3.6 in)	55.1 mm (2.2 in)	8 years	39 of 100 (Notable)
15 September 1951	Glen Boughton, AU	daily rain	31.2 mm (1.2 in)	21.0 mm (0.8 in)	16 years	37 of 100 (Notable)
15 September 1951	Hebbronville, US	daily rain	111.8 mm (4.4 in)	89.4 mm (3.5 in)	16 years	37 of 100 (Notable)
15 September 1951	Sarita 7 E, US	daily rain	108.0 mm (4.3 in)	74.5 mm (2.9 in)	4 years	36 of 100 (Notable)
15 September 1951	Stromsfoss Sluse, NO	daily rain	30.9 mm (1.2 in)	12.9 mm (0.5 in)	36 years	35 of 100 (Notable)
15 September 1951	Snow Hill 4 N, US	daily rain	88.4 mm (3.5 in)	50.3 mm (2.0 in)	34 years	35 of 100 (Notable)
15 September 1951	Weslaco, US	daily rain	119.4 mm (4.7 in)	83.6 mm (3.3 in)	8 years	35 of 100 (Notable)
15 September 1951	Attarikhat, IN	daily rain	101.3 mm (4.0 in)	44.9 mm (1.8 in)	20 years	32 of 100 (Routine)
15 September 1951	Chilliwack, CA	monthly high max	33.3 C (91.9 F)	1.1 C (2.0 F)	40 years	31 of 100 (Routine)
15 September 1951	Orje, NO	daily rain	29.6 mm (1.2 in)	13.6 mm (0.5 in)	20 years	31 of 100 (Routine)
15 September 1951	Bridgeville 1 NW, US	daily rain	55.4 mm (2.2 in)	20.1 mm (0.8 in)	50 years	31 of 100 (Routine)
15 September 1951	Holtwood, US	monthly rain	62.5 mm (2.5 in)	10.4 mm (0.4 in)	26 years	31 of 100 (Routine)
15 September 1951	Chilliwack, CA	daily high min	17.2 C (63.0 F)	4.4 C (7.9 F)	36 years	30 of 100 (Routine)
15 September 1951	Shencottah, IN	daily rain	37.8 mm (1.5 in)	23.8 mm (0.9 in)	24 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 1951

Records set or tied on this calendar date in each year from 1797 to 1951. 1951 had 283 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 1951-09-15: 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 20	202
20 to 40	11
40 to 60	4
60 to 80	1
80 to 100	3
100 to 120	1