Weather Records on 17 September 1969

352 weather records were set or tied worldwide on 17 September 1969. Highest significance: Pana, US.

Key Facts for 17 September 1969

On 17 September 1969, 352 weather records were set or tied at long-record stations worldwide.
48 were record highs and 49 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 13 monthly and 338 daily.
Pana set a monthly record daily precipitation of 149.9 mm (5.9 in) on 17 September 1969.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 423 records.

Record Map

352 stations

352 station records on 17 September 1969 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1969: highest significance records shown on the map
Station	Country	Type	Value	Significance
Pana	United States	Record daily precipitation	149.9 mm (5.9 in)	75 of 100 (Major)
Decatur Wtp	United States	Record daily precipitation	104.4 mm (4.1 in)	68 of 100 (Major)
Charleston	United States	Record daily precipitation	116.6 mm (4.6 in)	64 of 100 (Major)
Edwardsville 2 W	United States	Record daily precipitation	86.9 mm (3.4 in)	64 of 100 (Major)
Tuscola	United States	Record daily precipitation	88.6 mm (3.5 in)	64 of 100 (Major)
Lima Wwtp	United States	Record daily precipitation	92.7 mm (3.6 in)	64 of 100 (Major)
Las Animas	United States	Record daily precipitation	38.6 mm (1.5 in)	63 of 100 (Major)
Salem AP (McNary Field)	United States	Record daily precipitation	44.7 mm (1.8 in)	63 of 100 (Major)
Kokomo 3 WSW	United States	Record daily precipitation	94.5 mm (3.7 in)	62 of 100 (Major)
Marion 2 N	United States	Record daily precipitation	89.4 mm (3.5 in)	62 of 100 (Major)
Rockville	United States	Record daily precipitation	74.2 mm (2.9 in)	60 of 100 (Major)
Hillsboro	United States	Record daily precipitation	126.2 mm (5.0 in)	59 of 100 (Notable)
Crawfordsville Pwr Plt	United States	Record daily precipitation	81.5 mm (3.2 in)	56 of 100 (Notable)
Haswell	United States	Record daily precipitation	91.4 mm (3.6 in)	54 of 100 (Notable)
Huntington	United States	Record daily precipitation	64.8 mm (2.6 in)	54 of 100 (Notable)
Portland Intl AP	United States	Record daily precipitation	56.6 mm (2.2 in)	54 of 100 (Notable)
Portland Rfc City	United States	Record daily precipitation	61.2 mm (2.4 in)	54 of 100 (Notable)
Mattoon	United States	Record daily precipitation	73.4 mm (2.9 in)	52 of 100 (Notable)
Pinsk	Belarus	Record daily precipitation	35.6 mm (1.4 in)	49 of 100 (Notable)
Frankfort Disposal	United States	Record daily precipitation	58.4 mm (2.3 in)	48 of 100 (Notable)
Plauen	Germany	Record daily precipitation	42.9 mm (1.7 in)	47 of 100 (Notable)
Springfield	United States	Record daily precipitation	52.1 mm (2.1 in)	47 of 100 (Notable)
Windsor	United States	Record daily precipitation	100.8 mm (4.0 in)	47 of 100 (Notable)
Whitestown	United States	Record daily precipitation	57.9 mm (2.3 in)	47 of 100 (Notable)
Bellefontaine	United States	Record daily precipitation	48.3 mm (1.9 in)	47 of 100 (Notable)
Van Wert 1 S	United States	Record daily precipitation	53.8 mm (2.1 in)	47 of 100 (Notable)
Carlinville	United States	Record daily precipitation	61.2 mm (2.4 in)	46 of 100 (Notable)
Anderson Wtr Wks	United States	Record daily precipitation	66.0 mm (2.6 in)	46 of 100 (Notable)
Logansport Cicott St	United States	Record daily precipitation	61.0 mm (2.4 in)	46 of 100 (Notable)
St Charles Elm Pt	United States	Record daily precipitation	60.5 mm (2.4 in)	46 of 100 (Notable)
Monticello	United States	Record daily precipitation	45.7 mm (1.8 in)	45 of 100 (Notable)
Danville	United States	Record daily precipitation	52.6 mm (2.1 in)	44 of 100 (Notable)
St Marys 3 W	United States	Record daily precipitation	96.5 mm (3.8 in)	44 of 100 (Notable)
Cheyenne Wells 2NE	United States	Record daily precipitation	37.1 mm (1.5 in)	43 of 100 (Notable)
Tiffin	United States	Record daily precipitation	51.6 mm (2.0 in)	43 of 100 (Notable)
Bathurst Gaol	Australia	Record low minimum temperature	-3.3 C (26.1 F)	42 of 100 (Notable)
Delphi 2 N	United States	Record daily precipitation	49.0 mm (1.9 in)	42 of 100 (Notable)
Put-In-Bay	United States	Record daily precipitation	39.9 mm (1.6 in)	42 of 100 (Notable)
Effingham 3SW	United States	Record daily precipitation	59.7 mm (2.4 in)	41 of 100 (Notable)
Ruthven	Australia	Record daily precipitation	31.0 mm (1.2 in)	40 of 100 (Notable)
Powell River	Canada	Record daily precipitation	32.3 mm (1.3 in)	40 of 100 (Notable)
Sharon Springs	United States	Record daily precipitation	109.7 mm (4.3 in)	40 of 100 (Notable)
Berne Wwtp	United States	Record daily precipitation	74.9 mm (2.9 in)	38 of 100 (Notable)
Valley Park	United States	Record daily precipitation	74.9 mm (2.9 in)	38 of 100 (Notable)
W Lafayette 6 NW	United States	Record daily precipitation	69.1 mm (2.7 in)	37 of 100 (Notable)
Nevada Wtp	United States	Record daily precipitation	51.1 mm (2.0 in)	36 of 100 (Notable)
Norwalk Wwtp	United States	Record daily precipitation	37.6 mm (1.5 in)	36 of 100 (Notable)
Paulding	United States	Record daily precipitation	36.1 mm (1.4 in)	36 of 100 (Notable)
Upper Sandusky	United States	Record daily precipitation	45.5 mm (1.8 in)	36 of 100 (Notable)
Lincoln	United States	Record daily precipitation	48.3 mm (1.9 in)	35 of 100 (Notable)
Champaign 3S	United States	Record daily precipitation	39.6 mm (1.6 in)	35 of 100 (Notable)
Peterboro 2 S	United States	Record high minimum temperature	17.2 C (63.0 F)	35 of 100 (Notable)
Goldthwaite 1 WSW	United States	Record daily precipitation	70.9 mm (2.8 in)	35 of 100 (Notable)
Westfield 2 SSE	United States	Record daily precipitation	30.2 mm (1.2 in)	34 of 100 (Routine)
Gettysburg	United States	Record daily precipitation	35.6 mm (1.4 in)	34 of 100 (Routine)
Dillenburg	Germany	Record daily precipitation	31.7 mm (1.2 in)	33 of 100 (Routine)
Enisejsk	Russia	Record low maximum temperature	6.0 C (42.8 F)	33 of 100 (Routine)
Holly	United States	Record daily precipitation	43.4 mm (1.7 in)	33 of 100 (Routine)
Pierre Rgnl AP	United States	Record daily precipitation	49.3 mm (1.9 in)	32 of 100 (Routine)
Tunnel Camp	Canada	Record daily precipitation	105.7 mm (4.2 in)	31 of 100 (Routine)

Counts by Type and Timescale

352 records

Records set or tied on 17 September 1969 by type: Highest daily maximum 15, Lowest daily maximum 25, Highest daily minimum 33, Lowest daily minimum 24, Heaviest daily rainfall 253, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 17 September 1969 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	25
Highest daily minimum	33
Lowest daily minimum	24
Heaviest daily rainfall	253
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 17 September 1969 by timescale: all-time 1, monthly 13, daily 338.

How Much Records Were Beaten By

311 broken records

Margins by which the 311 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 90.9. Ties are not counted.

Top 20 by Significance

17 September 1969

Top 20 records on 17 September 1969 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1969	Pana, US	monthly rain	149.9 mm (5.9 in)	50.8 mm (2.0 in)	62 years	75 of 100 (Major)
17 September 1969	Decatur Wtp, US	daily rain	104.4 mm (4.1 in)	83.8 mm (3.3 in)	72 years	68 of 100 (Major)
17 September 1969	Charleston, US	daily rain	116.6 mm (4.6 in)	80.5 mm (3.2 in)	56 years	64 of 100 (Major)
17 September 1969	Edwardsville 2 W, US	daily rain	86.9 mm (3.4 in)	74.2 mm (2.9 in)	56 years	64 of 100 (Major)
17 September 1969	Tuscola, US	daily rain	88.6 mm (3.5 in)	64.7 mm (2.5 in)	56 years	64 of 100 (Major)
17 September 1969	Lima Wwtp, US	daily rain	92.7 mm (3.6 in)	57.9 mm (2.3 in)	62 years	64 of 100 (Major)
17 September 1969	Las Animas, US	daily rain	38.6 mm (1.5 in)	32.2 mm (1.3 in)	72 years	63 of 100 (Major)
17 September 1969	Salem AP (McNary Field), US	daily rain	44.7 mm (1.8 in)	31.5 mm (1.2 in)	55 years	63 of 100 (Major)
17 September 1969	Kokomo 3 WSW, US	daily rain	94.5 mm (3.7 in)	81.8 mm (3.2 in)	54 years	62 of 100 (Major)
17 September 1969	Marion 2 N, US	daily rain	89.4 mm (3.5 in)	69.1 mm (2.7 in)	51 years	62 of 100 (Major)
17 September 1969	Rockville, US	daily rain	74.2 mm (2.9 in)	51.6 mm (2.0 in)	54 years	60 of 100 (Major)
17 September 1969	Hillsboro, US	monthly rain	126.2 mm (5.0 in)	37.3 mm (1.5 in)	56 years	59 of 100 (Notable)
17 September 1969	Crawfordsville Pwr Plt, US	daily rain	81.5 mm (3.2 in)	56.1 mm (2.2 in)	56 years	56 of 100 (Notable)
17 September 1969	Haswell, US	monthly rain	91.4 mm (3.6 in)	36.8 mm (1.4 in)	6 years	54 of 100 (Notable)
17 September 1969	Huntington, US	daily rain	64.8 mm (2.6 in)	41.2 mm (1.6 in)	36 years	54 of 100 (Notable)
17 September 1969	Portland Intl AP, US	monthly rain	56.6 mm (2.2 in)	23.6 mm (0.9 in)	13 years	54 of 100 (Notable)
17 September 1969	Portland Rfc City, US	monthly rain	61.2 mm (2.4 in)	16.7 mm (0.7 in)	41 years	54 of 100 (Notable)
17 September 1969	Mattoon, US	daily rain	73.4 mm (2.9 in)	53.8 mm (2.1 in)	16 years	52 of 100 (Notable)
17 September 1969	Pinsk, BY	daily rain	35.6 mm (1.4 in)	23.8 mm (0.9 in)	0 years	49 of 100 (Notable)
17 September 1969	Frankfort Disposal, US	daily rain	58.4 mm (2.3 in)	40.1 mm (1.6 in)	48 years	48 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 1969

Records set or tied on this calendar date in each year from 1796 to 1969. 1969 had 352 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	969

Download the Data

Data for records on 1969-09-17: 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 2026-10-18. Last revised 18 October 2026 (2026-10-18).

Margin	Records
0 to 20	243
20 to 40	47
40 to 60	13
60 to 80	4
80 to 100	4