Weather Records on 17 September 1955

649 weather records were set or tied worldwide on 17 September 1955. Highest significance: Pollachi, IN.

Key Facts for 17 September 1955

On 17 September 1955, 649 weather records were set or tied at long-record stations worldwide.
515 were record highs and 45 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 17 monthly and 632 daily.
Pollachi set a daily record precipitation of 78.7 mm (3.1 in) on 17 September 1955.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 421 records.

Record Map

649 stations

649 station records on 17 September 1955 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1955: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pollachi	India	Record daily precipitation	78.7 mm (3.1 in)	53 of 100 (Notable)
Hirekerur	India	Record daily precipitation	87.6 mm (3.4 in)	46 of 100 (Notable)
Sandy Lake Dam Libby	United States	Record daily precipitation	48.3 mm (1.9 in)	45 of 100 (Notable)
Theethandathanam	India	Record daily precipitation	42.2 mm (1.7 in)	41 of 100 (Notable)
Emerson	Canada	Record daily precipitation	81.3 mm (3.2 in)	39 of 100 (Notable)
Meadowlands 9 S	United States	Record daily precipitation	89.4 mm (3.5 in)	38 of 100 (Notable)
Eagle Harbor	United States	Record daily precipitation	44.2 mm (1.7 in)	37 of 100 (Notable)
Mine Centre	Canada	Record daily precipitation	40.9 mm (1.6 in)	36 of 100 (Notable)
Moose Lake 1 SSE	United States	Record daily precipitation	33.0 mm (1.3 in)	36 of 100 (Notable)
Two Harbors	United States	Record daily precipitation	102.1 mm (4.0 in)	36 of 100 (Notable)
Virginia	United States	Record daily precipitation	52.1 mm (2.1 in)	36 of 100 (Notable)
Hayward Rs	United States	Record daily precipitation	36.1 mm (1.4 in)	35 of 100 (Notable)
Emo	Canada	Record daily precipitation	61.0 mm (2.4 in)	34 of 100 (Routine)
Tyndall	United States	Record high minimum temperature	25.0 C (77.0 F)	34 of 100 (Routine)
Danbury	United States	Record daily precipitation	46.2 mm (1.8 in)	34 of 100 (Routine)
Owk	India	Record daily precipitation	56.1 mm (2.2 in)	33 of 100 (Routine)
Milaca	United States	Record daily precipitation	54.1 mm (2.1 in)	33 of 100 (Routine)
Satyamangalam	India	Record daily precipitation	54.1 mm (2.1 in)	32 of 100 (Routine)
Hangal	India	Record daily precipitation	30.5 mm (1.2 in)	31 of 100 (Routine)
Wokha	India	Record daily precipitation	104.1 mm (4.1 in)	30 of 100 (Routine)
Chandi	India	Record daily precipitation	146.3 mm (5.8 in)	28 of 100 (Routine)
Cheboygan	United States	Record high maximum temperature	32.2 C (90.0 F)	28 of 100 (Routine)
Fairmont	United States	Record high minimum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Bowling Green Wwtp	United States	Record high maximum temperature	36.1 C (97.0 F)	28 of 100 (Routine)
Balurghat	India	Record daily precipitation	98.6 mm (3.9 in)	27 of 100 (Routine)
Broken Bow 2 W	United States	Record high minimum temperature	20.6 C (69.1 F)	27 of 100 (Routine)
Napoleon	United States	Record high maximum temperature	36.7 C (98.1 F)	27 of 100 (Routine)
Faulkton	United States	Record high maximum temperature	37.2 C (99.0 F)	27 of 100 (Routine)
Ashland Exp Farm	United States	Record daily precipitation	39.6 mm (1.6 in)	27 of 100 (Routine)
New Westminster	Canada	Record low maximum temperature	12.2 C (54.0 F)	26 of 100 (Routine)
Chauradano	India	Record daily precipitation	178.6 mm (7.0 in)	26 of 100 (Routine)
Drobeta Turnu Severin	Romania	Record daily precipitation	30.6 mm (1.2 in)	26 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record high maximum temperature	20.5 C (68.9 F)	26 of 100 (Routine)
Wayne	United States	Record high maximum temperature	36.1 C (97.0 F)	26 of 100 (Routine)
Fremont	United States	Record high maximum temperature	36.7 C (98.1 F)	26 of 100 (Routine)
Wauseon Wtp	United States	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Milbank 4 NW	United States	Record high maximum temperature	35.0 C (95.0 F)	26 of 100 (Routine)
Alton	Canada	Record high maximum temperature	29.4 C (84.9 F)	25 of 100 (Routine)
Cluj Napoca	Romania	Record daily precipitation	30.0 mm (1.2 in)	25 of 100 (Routine)
Johnson 11 ESE	United States	Record high minimum temperature	24.4 C (75.9 F)	25 of 100 (Routine)
Lakin	United States	Record high minimum temperature	21.7 C (71.1 F)	25 of 100 (Routine)
Adrian 2 NNE	United States	Record high maximum temperature	35.0 C (95.0 F)	25 of 100 (Routine)
Albert Lea 3SE	United States	Record high maximum temperature	34.4 C (93.9 F)	25 of 100 (Routine)
Seward	United States	Record high minimum temperature	22.8 C (73.0 F)	25 of 100 (Routine)
Chippewa Lake	United States	Record high maximum temperature	33.9 C (93.0 F)	25 of 100 (Routine)
Waupaca	United States	Record high maximum temperature	33.9 C (93.0 F)	25 of 100 (Routine)
Kadur	India	Record daily precipitation	39.9 mm (1.6 in)	24 of 100 (Routine)
Cresco 1 NE	United States	Record high maximum temperature	33.9 C (93.0 F)	24 of 100 (Routine)
Denison	United States	Record high minimum temperature	22.8 C (73.0 F)	24 of 100 (Routine)
Pocahontas	United States	Record high minimum temperature	23.3 C (73.9 F)	24 of 100 (Routine)
Toledo 3N	United States	Record high minimum temperature	20.0 C (68.0 F)	24 of 100 (Routine)
Oakland 1 SE	United States	Record high maximum temperature	31.1 C (88.0 F)	24 of 100 (Routine)
Grayling	United States	Record high minimum temperature	19.4 C (66.9 F)	24 of 100 (Routine)
Fairmont	United States	Record high maximum temperature	35.0 C (95.0 F)	24 of 100 (Routine)
Curtis	United States	Record high maximum temperature	37.8 C (100.0 F)	24 of 100 (Routine)
Tecumseh 1S	United States	Record high minimum temperature	22.8 C (73.0 F)	24 of 100 (Routine)
Hemlock	United States	Record high maximum temperature	30.6 C (87.1 F)	24 of 100 (Routine)
Ft Yates 4 SW	United States	Record high maximum temperature	32.8 C (91.0 F)	24 of 100 (Routine)
Dayton Mcd	United States	Record high maximum temperature	34.4 C (93.9 F)	24 of 100 (Routine)
Van Wert 1 S	United States	Record high maximum temperature	33.9 C (93.0 F)	24 of 100 (Routine)

Counts by Type and Timescale

649 records

Records set or tied on 17 September 1955 by type: Highest daily maximum 286, Lowest daily maximum 26, Highest daily minimum 229, Lowest daily minimum 19, Heaviest daily rainfall 88, Heaviest daily snowfall 1.

Records on 17 September 1955 by type
Record type	Records
Highest daily maximum	286
Lowest daily maximum	26
Highest daily minimum	229
Lowest daily minimum	19
Heaviest daily rainfall	88
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 17 September 1955 by timescale: all-time 0, monthly 17, daily 632.

How Much Records Were Beaten By

502 broken records

Margins by which the 502 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 71.9. Ties are not counted.

Top 20 by Significance

17 September 1955

Top 20 records on 17 September 1955 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1955	Pollachi, IN	daily rain	78.7 mm (3.1 in)	68.8 mm (2.7 in)	28 years	53 of 100 (Notable)
17 September 1955	Hirekerur, IN	daily rain	87.6 mm (3.4 in)	46.5 mm (1.8 in)	8 years	46 of 100 (Notable)
17 September 1955	Sandy Lake Dam Libby, US	daily rain	48.3 mm (1.9 in)	30.5 mm (1.2 in)	32 years	45 of 100 (Notable)
17 September 1955	Theethandathanam, IN	daily rain	42.2 mm (1.7 in)	29.5 mm (1.2 in)	48 years	41 of 100 (Notable)
17 September 1955	Emerson, CA	monthly rain	81.3 mm (3.2 in)	18.3 mm (0.7 in)	14 years	39 of 100 (Notable)
17 September 1955	Meadowlands 9 S, US	monthly rain	89.4 mm (3.5 in)	18.3 mm (0.7 in)	30 years	38 of 100 (Notable)
17 September 1955	Eagle Harbor, US	daily rain	44.2 mm (1.7 in)	23.9 mm (0.9 in)	28 years	37 of 100 (Notable)
17 September 1955	Mine Centre, CA	daily rain	40.9 mm (1.6 in)	23.4 mm (0.9 in)	32 years	36 of 100 (Notable)
17 September 1955	Moose Lake 1 SSE, US	daily rain	33.0 mm (1.3 in)	24.4 mm (1.0 in)	16 years	36 of 100 (Notable)
17 September 1955	Two Harbors, US	monthly rain	102.1 mm (4.0 in)	19.5 mm (0.8 in)	14 years	36 of 100 (Notable)
17 September 1955	Virginia, US	daily rain	52.1 mm (2.1 in)	28.0 mm (1.1 in)	32 years	36 of 100 (Notable)
17 September 1955	Hayward Rs, US	daily rain	36.1 mm (1.4 in)	19.6 mm (0.8 in)	44 years	35 of 100 (Notable)
17 September 1955	Emo, CA	monthly rain	61.0 mm (2.4 in)	13.5 mm (0.5 in)	15 years	34 of 100 (Routine)
17 September 1955	Tyndall, US	monthly high min	25.0 C (77.0 F)	0.6 C (1.1 F)	58 years	34 of 100 (Routine)
17 September 1955	Danbury, US	daily rain	46.2 mm (1.8 in)	27.1 mm (1.1 in)	32 years	34 of 100 (Routine)
17 September 1955	Owk, IN	daily rain	56.1 mm (2.2 in)	27.1 mm (1.1 in)	44 years	33 of 100 (Routine)
17 September 1955	Milaca, US	daily rain	54.1 mm (2.1 in)	26.2 mm (1.0 in)	32 years	33 of 100 (Routine)
17 September 1955	Satyamangalam, IN	daily rain	54.1 mm (2.1 in)	23.9 mm (0.9 in)	36 years	32 of 100 (Routine)
17 September 1955	Hangal, IN	daily rain	30.5 mm (1.2 in)	10.2 mm (0.4 in)	48 years	31 of 100 (Routine)
17 September 1955	Wokha, IN	daily rain	104.1 mm (4.1 in)	35.0 mm (1.4 in)	22 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

1796 to 1955

Records set or tied on this calendar date in each year from 1796 to 1955. 1955 had 649 records.

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

Records on 09-17 in each year
Year	Records
1796	1
1797	1
1805	1
1833	1
1834	1
1837	2
1845	1
1847	3
1848	1
1850	1
1851	2
1853	2
1854	2
1859	1
1862	1
1867	1
1870	1
1871	1
1872	1
1873	1
1874	1
1875	1
1877	1
1881	1
1882	2
1884	3
1885	3
1886	6
1888	2
1889	8
1891	1
1893	3
1894	1
1895	4
1896	9
1897	4
1898	7
1899	1
1900	4
1901	5
1902	5
1903	28
1904	2
1905	17
1906	10
1907	15
1908	13
1909	7
1910	38
1911	15
1912	17
1913	28
1914	38
1915	48
1916	40
1917	255
1918	41
1919	21
1920	40
1921	66
1922	47
1923	159
1924	80
1925	338
1926	154
1927	420
1928	78
1929	168
1930	147
1931	564
1932	425
1933	415
1934	246
1935	321
1936	219
1937	463
1938	363
1939	294
1940	326
1941	328
1942	581
1943	513
1944	403
1945	614
1946	620
1947	680
1948	630
1949	292
1950	412
1951	359
1952	263
1953	344
1954	449
1955	649
1956	437
1957	405
1958	806
1959	1,210
1960	385
1961	657
1962	432
1963	297
1964	559
1965	1,394
1966	523
1967	331
1968	691
1969	352
1970	412
1971	898
1972	556
1973	638
1974	491
1975	478
1976	636
1977	641
1978	764
1979	804
1980	794
1981	1,155
1982	606
1983	862
1984	1,006
1985	448
1986	1,314
1987	926
1988	982
1989	863
1990	650
1991	1,407
1992	686
1993	950
1994	986
1995	1,145
1996	1,342
1997	1,057
1998	1,137
1999	1,102
2000	1,318
2001	895
2002	1,025
2003	586
2004	872
2005	1,042
2006	1,344
2007	752
2008	886
2009	871
2010	907
2011	1,116
2012	597
2013	1,253
2014	571
2015	953
2016	707
2017	455
2018	899
2019	774
2020	651
2021	345
2022	313
2023	646
2024	954
2025	634
2026	968

Download the Data

Data for records on 1955-09-17: 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	464
10 to 20	19
20 to 30	11
30 to 40	4
40 to 50	2
50 to 60	0
60 to 70	1
70 to 80	1