Weather Records on 17 September 1976

636 weather records were set or tied worldwide on 17 September 1976. Highest significance: Willowghby East Lake, US.

Key Facts for 17 September 1976

On 17 September 1976, 636 weather records were set or tied at long-record stations worldwide.
225 were record highs and 177 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 10 monthly and 625 daily.
Willowghby East Lake set a daily record precipitation of 50.8 mm (2.0 in) on 17 September 1976.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 421 records.

Record Map

636 stations

636 station records on 17 September 1976 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1976: highest significance records shown on the map
Station	Country	Type	Value	Significance
Willowghby East Lake	United States	Record daily precipitation	50.8 mm (2.0 in)	61 of 100 (Major)
Canfield 1 S	United States	Record daily precipitation	53.3 mm (2.1 in)	60 of 100 (Major)
Meeker 5 W	United States	Record daily precipitation	93.2 mm (3.7 in)	59 of 100 (Notable)
Bom Jesus Do Galho	Brazil	Record daily precipitation	32.1 mm (1.3 in)	53 of 100 (Notable)
Bom Jesus	Brazil	Record daily precipitation	34.3 mm (1.4 in)	50 of 100 (Notable)
Cambridge Galt Moe	Canada	Record daily precipitation	68.8 mm (2.7 in)	48 of 100 (Notable)
Strausstown	United States	Record daily precipitation	73.9 mm (2.9 in)	47 of 100 (Notable)
Sandusky	United States	Record daily precipitation	84.3 mm (3.3 in)	46 of 100 (Notable)
Buffalo	United States	Record daily precipitation	72.9 mm (2.9 in)	45 of 100 (Notable)
Nieves	Mexico	Record daily precipitation	42.9 mm (1.7 in)	44 of 100 (Notable)
Phillipsburg	United States	Record daily precipitation	67.3 mm (2.6 in)	44 of 100 (Notable)
Sretensk	Russia	Record daily precipitation	26.0 mm (1.0 in)	43 of 100 (Notable)
Ojo de Agua	Mexico	Record low minimum temperature	5.0 C (41.0 F)	42 of 100 (Notable)
Shreveport	United States	Record daily precipitation	78.2 mm (3.1 in)	42 of 100 (Notable)
Puerto Madero	Mexico	Record low minimum temperature	12.8 C (55.0 F)	40 of 100 (Notable)
Armagh	United Kingdom	Record low minimum temperature	0.9 C (33.6 F)	40 of 100 (Notable)
Tamaqua	United States	Record daily precipitation	64.0 mm (2.5 in)	40 of 100 (Notable)
Santo Hipolito	Brazil	Record daily precipitation	39.0 mm (1.5 in)	39 of 100 (Notable)
Vermelho Velho	Brazil	Record daily precipitation	31.2 mm (1.2 in)	39 of 100 (Notable)
Kitchener	Canada	Record daily precipitation	87.6 mm (3.4 in)	39 of 100 (Notable)
Tarpon Spgs Sewage Plt	United States	Record low minimum temperature	17.8 C (64.0 F)	39 of 100 (Notable)
Petropavlovskij Majak	Russia	Record low minimum temperature	-0.4 C (31.3 F)	38 of 100 (Notable)
Ocala	United States	Record low minimum temperature	14.4 C (57.9 F)	38 of 100 (Notable)
Kresgeville 2 W	United States	Record daily precipitation	61.0 mm (2.4 in)	38 of 100 (Notable)
Cambridge Galt Moe	Canada	Record high minimum temperature	16.1 C (61.0 F)	37 of 100 (Notable)
Bowling Green Wwtp	United States	Record daily precipitation	46.7 mm (1.8 in)	37 of 100 (Notable)
Youngstown-Warren Rgnl AP	United States	Record daily precipitation	55.1 mm (2.2 in)	37 of 100 (Notable)
Tamaqua 4 N Dam	United States	Record daily precipitation	57.9 mm (2.3 in)	36 of 100 (Notable)
Coloso	Puerto Rico [United States]	Record low minimum temperature	17.8 C (64.0 F)	35 of 100 (Notable)
Skara 1	Sweden	Record low maximum temperature	9.0 C (48.2 F)	35 of 100 (Notable)
Uzhhorod	Ukraine	Record daily precipitation	29.0 mm (1.1 in)	35 of 100 (Notable)
Newton	United States	Record low minimum temperature	3.3 C (37.9 F)	35 of 100 (Notable)
Winfield 3NE	United States	Record daily precipitation	61.7 mm (2.4 in)	35 of 100 (Notable)
Great Salt Plains Dam	United States	Record daily precipitation	61.0 mm (2.4 in)	35 of 100 (Notable)
Ashley (the Prairies)	Australia	Record daily precipitation	34.0 mm (1.3 in)	33 of 100 (Routine)
Chaplin	Canada	Record high maximum temperature	31.7 C (89.1 F)	33 of 100 (Routine)
Plattsburgh AFB	United States	Record high minimum temperature	16.7 C (62.1 F)	33 of 100 (Routine)
New Cumberland L/D	United States	Record daily precipitation	27.9 mm (1.1 in)	33 of 100 (Routine)
San Bernardo	Mexico	Record daily precipitation	52.1 mm (2.1 in)	32 of 100 (Routine)
Ivano-Frankivsk	Ukraine	Record daily precipitation	26.9 mm (1.1 in)	32 of 100 (Routine)
Farrell Sharon	United States	Record daily precipitation	41.7 mm (1.6 in)	32 of 100 (Routine)
Saskatoon Diefenbaker Int'l A	Canada	Record high minimum temperature	15.0 C (59.0 F)	31 of 100 (Routine)
Nordby (Fano)	Denmark	Record low maximum temperature	11.8 C (53.2 F)	31 of 100 (Routine)
Petropavlovsk-Kamchatskij	Russia	Record low minimum temperature	1.3 C (34.3 F)	31 of 100 (Routine)
Vanersborg	Sweden	Record low maximum temperature	10.2 C (50.4 F)	31 of 100 (Routine)
Jornada Exp Range	United States	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Westfield 2 SSE	United States	Record daily precipitation	57.2 mm (2.3 in)	31 of 100 (Routine)
Warren 3 S	United States	Record daily precipitation	50.8 mm (2.0 in)	31 of 100 (Routine)
S Mtn	United States	Record daily precipitation	50.8 mm (2.0 in)	31 of 100 (Routine)
Lake Lynn	United States	Record daily precipitation	36.8 mm (1.4 in)	31 of 100 (Routine)
Windsor A	Canada	Record daily precipitation	34.8 mm (1.4 in)	30 of 100 (Routine)
Flahult	Sweden	Record low maximum temperature	10.6 C (51.1 F)	30 of 100 (Routine)
Hachita 1W	United States	Record high minimum temperature	20.0 C (68.0 F)	30 of 100 (Routine)
Middletown 2 NW	United States	Record daily precipitation	30.0 mm (1.2 in)	30 of 100 (Routine)
Narrogin	Australia	Record high minimum temperature	15.5 C (59.9 F)	29 of 100 (Routine)
Clarke City	Canada	Record high maximum temperature	23.9 C (75.0 F)	29 of 100 (Routine)
San Carlos Rsvr	United States	Record low minimum temperature	7.8 C (46.0 F)	29 of 100 (Routine)
Porterville	United States	Record low maximum temperature	24.4 C (75.9 F)	29 of 100 (Routine)
Palatka	United States	Record low minimum temperature	17.2 C (63.0 F)	29 of 100 (Routine)
Myerstown	United States	Record daily precipitation	45.5 mm (1.8 in)	29 of 100 (Routine)

Counts by Type and Timescale

636 records

Records set or tied on 17 September 1976 by type: Highest daily maximum 98, Lowest daily maximum 98, Highest daily minimum 127, Lowest daily minimum 79, Heaviest daily rainfall 234.

Records on 17 September 1976 by type
Record type	Records
Highest daily maximum	98
Lowest daily maximum	98
Highest daily minimum	127
Lowest daily minimum	79
Heaviest daily rainfall	234
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 17 September 1976 by timescale: all-time 1, monthly 10, daily 625.

How Much Records Were Beaten By

511 broken records

Margins by which the 511 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.3. Ties are not counted.

Top 20 by Significance

17 September 1976

Top 20 records on 17 September 1976 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1976	Willowghby East Lake, US	daily rain	50.8 mm (2.0 in)	35.6 mm (1.4 in)	78 years	61 of 100 (Major)
17 September 1976	Canfield 1 S, US	daily rain	53.3 mm (2.1 in)	36.8 mm (1.4 in)	55 years	60 of 100 (Major)
17 September 1976	Meeker 5 W, US	daily rain	93.2 mm (3.7 in)	61.7 mm (2.4 in)	64 years	59 of 100 (Notable)
17 September 1976	Bom Jesus Do Galho, BR	daily rain	32.1 mm (1.3 in)	32.1 mm (1.3 in)	35 years	53 of 100 (Notable)
17 September 1976	Bom Jesus, BR	daily rain	34.3 mm (1.4 in)	34.3 mm (1.4 in)	42 years	50 of 100 (Notable)
17 September 1976	Cambridge Galt Moe, CA	monthly rain	68.8 mm (2.7 in)	20.3 mm (0.8 in)	24 years	48 of 100 (Notable)
17 September 1976	Strausstown, US	daily rain	73.9 mm (2.9 in)	67.3 mm (2.6 in)	19 years	47 of 100 (Notable)
17 September 1976	Sandusky, US	daily rain	84.3 mm (3.3 in)	47.7 mm (1.9 in)	7 years	46 of 100 (Notable)
17 September 1976	Buffalo, US	daily rain	72.9 mm (2.9 in)	48.5 mm (1.9 in)	7 years	45 of 100 (Notable)
17 September 1976	Nieves, MX	daily rain	42.9 mm (1.7 in)	25.1 mm (1.0 in)	30 years	44 of 100 (Notable)
17 September 1976	Phillipsburg, US	daily rain	67.3 mm (2.6 in)	37.1 mm (1.5 in)	47 years	44 of 100 (Notable)
17 September 1976	Sretensk, RU	daily rain	26.0 mm (1.0 in)	19.7 mm (0.8 in)	20 years	43 of 100 (Notable)
17 September 1976	Ojo de Agua, MX	daily low min	5.0 C (41.0 F)	10.6 C (19.1 F)	8 years	42 of 100 (Notable)
17 September 1976	Shreveport, US	daily rain	78.2 mm (3.1 in)	59.7 mm (2.4 in)	12 years	42 of 100 (Notable)
17 September 1976	Puerto Madero, MX	daily low min	12.8 C (55.0 F)	6.1 C (11.0 F)	21 years	40 of 100 (Notable)
17 September 1976	Armagh, GB	daily low min	0.9 C (33.6 F)	1.4 C (2.5 F)	89 years	40 of 100 (Notable)
17 September 1976	Tamaqua, US	daily rain	64.0 mm (2.5 in)	48.3 mm (1.9 in)	18 years	40 of 100 (Notable)
17 September 1976	Santo Hipolito, BR	daily rain	39.0 mm (1.5 in)	28.0 mm (1.1 in)	34 years	39 of 100 (Notable)
17 September 1976	Vermelho Velho, BR	daily rain	31.2 mm (1.2 in)	30.7 mm (1.2 in)	6 years	39 of 100 (Notable)
17 September 1976	Kitchener, CA	monthly rain	87.6 mm (3.4 in)	21.3 mm (0.8 in)	8 years	39 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

1796 to 1976

Records set or tied on this calendar date in each year from 1796 to 1976. 1976 had 636 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 1976-09-17: 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	426
10 to 20	48
20 to 30	18
30 to 40	11
40 to 50	5
50 to 60	1
60 to 70	2