Weather Records on 17 September 1929

168 weather records were set or tied worldwide on 17 September 1929. Highest significance: Newnan 7 WNW, US.

Key Facts for 17 September 1929

On 17 September 1929, 168 weather records were set or tied at long-record stations worldwide.
46 were record highs and 33 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 3 monthly and 165 daily.
Newnan 7 WNW set a daily record precipitation of 71.1 mm (2.8 in) on 17 September 1929.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 424 records.

Record Map

168 stations

168 station records on 17 September 1929 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 17 September 1929: highest significance records shown on the map
Station	Country	Type	Value	Significance
Newnan 7 WNW	United States	Record daily precipitation	71.1 mm (2.8 in)	50 of 100 (Notable)
Dunedin	South Africa	Record daily precipitation	28.2 mm (1.1 in)	41 of 100 (Notable)
Washington 2 ESE	United States	Record daily precipitation	63.5 mm (2.5 in)	40 of 100 (Notable)
Monticello	United States	Record daily precipitation	65.0 mm (2.6 in)	39 of 100 (Notable)
Canton	United States	Record daily precipitation	51.6 mm (2.0 in)	38 of 100 (Notable)
Frankfort Downtown	United States	Record daily precipitation	36.6 mm (1.4 in)	37 of 100 (Notable)
Dunmurray	South Africa	Record daily precipitation	27.9 mm (1.1 in)	35 of 100 (Notable)
Shelbyville 1 E	United States	Record daily precipitation	28.7 mm (1.1 in)	31 of 100 (Routine)
Kingston	United States	Record daily precipitation	48.5 mm (1.9 in)	31 of 100 (Routine)
Uniontown 1 NE	United States	Record daily precipitation	49.3 mm (1.9 in)	30 of 100 (Routine)
Greensboro Lock 7	United States	Record daily precipitation	55.9 mm (2.2 in)	28 of 100 (Routine)
New Martinsville 4 NNE	United States	Record daily precipitation	31.8 mm (1.3 in)	27 of 100 (Routine)
Toccoa	United States	Record daily precipitation	42.4 mm (1.7 in)	26 of 100 (Routine)
Macon 2 NE	United States	Record daily precipitation	73.9 mm (2.9 in)	26 of 100 (Routine)
Hemlock	United States	Record daily precipitation	30.5 mm (1.2 in)	26 of 100 (Routine)
Bardstown	United States	Record daily precipitation	33.5 mm (1.3 in)	25 of 100 (Routine)
Marietta Wtr Wks	United States	Record daily precipitation	34.0 mm (1.3 in)	25 of 100 (Routine)
Corvallis State UNIV	United States	Record high minimum temperature	14.4 C (57.9 F)	23 of 100 (Routine)
Fairmont	United States	Record daily precipitation	28.4 mm (1.1 in)	23 of 100 (Routine)
Carlton Brg	United States	Record daily precipitation	81.3 mm (3.2 in)	22 of 100 (Routine)
Maysville Wwtp	United States	Record daily precipitation	25.7 mm (1.0 in)	22 of 100 (Routine)
Woodville 4 ESE	United States	Record daily precipitation	36.3 mm (1.4 in)	22 of 100 (Routine)
Circleville	United States	Record daily precipitation	27.9 mm (1.1 in)	22 of 100 (Routine)
Greensboro	United States	Record daily precipitation	27.7 mm (1.1 in)	21 of 100 (Routine)
Scott	United States	Record daily precipitation	25.9 mm (1.0 in)	21 of 100 (Routine)
Clinton Forestry HQ	United States	Record daily precipitation	31.0 mm (1.2 in)	21 of 100 (Routine)
Covington 8 WNW	United States	Record daily precipitation	50.8 mm (2.0 in)	21 of 100 (Routine)
Bay Saint Louis	United States	Record daily precipitation	48.3 mm (1.9 in)	21 of 100 (Routine)
Mt Airy 2 W	United States	Record daily precipitation	43.4 mm (1.7 in)	21 of 100 (Routine)
Hopetown (Tnk)	South Africa	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
San Diego Wbo	United States	Record daily precipitation	5.3 mm (0.21 in)	20 of 100 (Routine)
Rocklands	South Africa	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Dordrecht - Tnk 14	South Africa	Record daily precipitation	5.8 mm (0.23 in)	20 of 100 (Routine)
Yuma Wb City	United States	Record daily precipitation	22.1 mm (0.9 in)	20 of 100 (Routine)
St John Bethlehem Aca	United States	Record daily precipitation	22.6 mm (0.9 in)	20 of 100 (Routine)
Agassiz Cda	Canada	Record high minimum temperature	15.6 C (60.1 F)	20 of 100 (Routine)
Savanne	Canada	Record daily snowfall	1.5 cm (0.6 in)	20 of 100 (Routine)
El Cajon 2 E	United States	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Lawrence	United States	Record daily precipitation	26.2 mm (1.0 in)	20 of 100 (Routine)
Brockport	United States	Record daily precipitation	21.1 mm (0.8 in)	20 of 100 (Routine)
Lycippus 1 E	United States	Record daily precipitation	26.7 mm (1.1 in)	20 of 100 (Routine)
Lucknow	Canada	Record low maximum temperature	10.0 C (50.0 F)	19 of 100 (Routine)
Arnsberg	Germany	Record high maximum temperature	26.0 C (78.8 F)	19 of 100 (Routine)
Eastport	United States	Record daily precipitation	16.0 mm (0.6 in)	19 of 100 (Routine)
Angelica	United States	Record daily precipitation	32.8 mm (1.3 in)	19 of 100 (Routine)
Spokane Intl AP	United States	Record high minimum temperature	13.3 C (55.9 F)	19 of 100 (Routine)
Masset Airport	Canada	Record high maximum temperature	22.2 C (72.0 F)	18 of 100 (Routine)
Windsor Kings College	Canada	Record high minimum temperature	18.9 C (66.0 F)	18 of 100 (Routine)
Enisejsk	Russia	Record low minimum temperature	-5.6 C (21.9 F)	18 of 100 (Routine)
Oranjerivier (Sar)	South Africa	Record daily precipitation	15.2 mm (0.6 in)	18 of 100 (Routine)
Hattiesburg 5SW	United States	Record daily precipitation	47.0 mm (1.9 in)	18 of 100 (Routine)
Dover	United States	Record daily precipitation	38.1 mm (1.5 in)	18 of 100 (Routine)
Marion	United States	Record daily precipitation	37.1 mm (1.5 in)	18 of 100 (Routine)
Lewisburg	United States	Record high minimum temperature	21.1 C (70.0 F)	18 of 100 (Routine)
Parkers Landing	United States	Record daily precipitation	34.3 mm (1.4 in)	18 of 100 (Routine)
Winnemucca AP	United States	Record high maximum temperature	36.1 C (97.0 F)	18 of 100 (Routine)
Broome Post Office	Australia	Record low minimum temperature	11.8 C (53.2 F)	17 of 100 (Routine)
El Cajon 2 E	United States	Record high minimum temperature	22.2 C (72.0 F)	17 of 100 (Routine)
Asheville Pearson St	United States	Record daily precipitation	40.6 mm (1.6 in)	17 of 100 (Routine)
Smithfield (Mun)	South Africa	Record daily precipitation	3.6 mm (0.14 in)	16 of 100 (Routine)

Counts by Type and Timescale

168 records

Records set or tied on 17 September 1929 by type: Highest daily maximum 21, Lowest daily maximum 19, Highest daily minimum 25, Lowest daily minimum 14, Heaviest daily rainfall 88, Heaviest daily snowfall 1.

Records on 17 September 1929 by type
Record type	Records
Highest daily maximum	21
Lowest daily maximum	19
Highest daily minimum	25
Lowest daily minimum	14
Heaviest daily rainfall	88
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 17 September 1929 by timescale: all-time 0, monthly 3, daily 165.

How Much Records Were Beaten By

138 broken records

Margins by which the 138 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 60.2. Ties are not counted.

Top 20 by Significance

17 September 1929

Top 20 records on 17 September 1929 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
17 September 1929	Newnan 7 WNW, US	daily rain	71.1 mm (2.8 in)	60.2 mm (2.4 in)	28 years	50 of 100 (Notable)
17 September 1929	Dunedin, ZA	daily rain	28.2 mm (1.1 in)	28.2 mm (1.1 in)	35 years	41 of 100 (Notable)
17 September 1929	Washington 2 ESE, US	daily rain	63.5 mm (2.5 in)	43.2 mm (1.7 in)	28 years	40 of 100 (Notable)
17 September 1929	Monticello, US	daily rain	65.0 mm (2.6 in)	37.1 mm (1.5 in)	34 years	39 of 100 (Notable)
17 September 1929	Canton, US	daily rain	51.6 mm (2.0 in)	40.9 mm (1.6 in)	33 years	38 of 100 (Notable)
17 September 1929	Frankfort Downtown, US	daily rain	36.6 mm (1.4 in)	32.3 mm (1.3 in)	26 years	37 of 100 (Notable)
17 September 1929	Dunmurray, ZA	daily rain	27.9 mm (1.1 in)	21.5 mm (0.8 in)	11 years	35 of 100 (Notable)
17 September 1929	Shelbyville 1 E, US	daily rain	28.7 mm (1.1 in)	20.1 mm (0.8 in)	31 years	31 of 100 (Routine)
17 September 1929	Kingston, US	daily rain	48.5 mm (1.9 in)	30.5 mm (1.2 in)	34 years	31 of 100 (Routine)
17 September 1929	Uniontown 1 NE, US	daily rain	49.3 mm (1.9 in)	18.8 mm (0.7 in)	28 years	30 of 100 (Routine)
17 September 1929	Greensboro Lock 7, US	daily rain	55.9 mm (2.2 in)	16.8 mm (0.7 in)	28 years	28 of 100 (Routine)
17 September 1929	New Martinsville 4 NNE, US	daily rain	31.8 mm (1.3 in)	16.8 mm (0.7 in)	32 years	27 of 100 (Routine)
17 September 1929	Toccoa, US	daily rain	42.4 mm (1.7 in)	30.0 mm (1.2 in)	20 years	26 of 100 (Routine)
17 September 1929	Macon 2 NE, US	daily rain	73.9 mm (2.9 in)	32.5 mm (1.3 in)	12 years	26 of 100 (Routine)
17 September 1929	Hemlock, US	daily rain	30.5 mm (1.2 in)	15.0 mm (0.6 in)	28 years	26 of 100 (Routine)
17 September 1929	Bardstown, US	daily rain	33.5 mm (1.3 in)	15.7 mm (0.6 in)	26 years	25 of 100 (Routine)
17 September 1929	Marietta Wtr Wks, US	daily rain	34.0 mm (1.3 in)	12.2 mm (0.5 in)	34 years	25 of 100 (Routine)
17 September 1929	Corvallis State UNIV, US	daily high min	14.4 C (57.9 F)	3.3 C (5.9 F)	34 years	23 of 100 (Routine)
17 September 1929	Fairmont, US	daily rain	28.4 mm (1.1 in)	13.2 mm (0.5 in)	28 years	23 of 100 (Routine)
17 September 1929	Carlton Brg, US	daily rain	81.3 mm (3.2 in)	20.3 mm (0.8 in)	28 years	22 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 1929

Records set or tied on this calendar date in each year from 1796 to 1929. 1929 had 168 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 1929-09-17: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 10	92
10 to 20	27
20 to 30	11
30 to 40	5
40 to 50	2
50 to 60	0
60 to 70	1