Weather Records on 28 September 1940

419 weather records were set or tied worldwide on 28 September 1940. Highest significance: Dillon U of Montana Western, US.

Key Facts for 28 September 1940

On 28 September 1940, 419 weather records were set or tied at long-record stations worldwide.
62 were record highs and 217 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 23 monthly and 396 daily.
Dillon U of Montana Western set a daily record precipitation of 45.5 mm (1.8 in) on 28 September 1940.
Across 162 earlier years (1794 to 2026) the same calendar date averaged 428 records.

Record Map

419 stations

419 station records on 28 September 1940 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 September 1940: highest significance records shown on the map
Station	Country	Type	Value	Significance
Dillon U of Montana Western	United States	Record daily precipitation	45.5 mm (1.8 in)	53 of 100 (Notable)
Hamilton	United States	Record daily precipitation	36.3 mm (1.4 in)	53 of 100 (Notable)
Philipsburg	United States	Record daily precipitation	33.0 mm (1.3 in)	45 of 100 (Notable)
Puttur	India	Record daily precipitation	122.7 mm (4.8 in)	43 of 100 (Notable)
Tooele	United States	Record daily precipitation	26.7 mm (1.1 in)	38 of 100 (Notable)
Graz	Austria	Record daily precipitation	52.4 mm (2.1 in)	37 of 100 (Notable)
Saint Maries	United States	Record daily precipitation	31.0 mm (1.2 in)	35 of 100 (Notable)
Dwtn Charleston	United States	Record low maximum temperature	17.8 C (64.0 F)	35 of 100 (Notable)
Jacksonville Wb City	United States	Record low maximum temperature	20.0 C (68.0 F)	35 of 100 (Notable)
Zuerich/Fluntern	Switzerland	Record daily precipitation	32.8 mm (1.3 in)	34 of 100 (Routine)
Coimbatore	India	Record daily precipitation	67.6 mm (2.7 in)	32 of 100 (Routine)
Villiers (Pol)	South Africa	Record daily precipitation	53.3 mm (2.1 in)	30 of 100 (Routine)
Rocky Ford 2 SE	United States	Record high minimum temperature	18.9 C (66.0 F)	28 of 100 (Routine)
Mysore	India	Record daily precipitation	50.8 mm (2.0 in)	27 of 100 (Routine)
Georgetown 2 E	United States	Record low maximum temperature	18.3 C (64.9 F)	27 of 100 (Routine)
Salzburg	Austria	Record daily precipitation	39.5 mm (1.6 in)	26 of 100 (Routine)
Poronajsk	Russia	Record low maximum temperature	6.7 C (44.1 F)	26 of 100 (Routine)
Orofino	United States	Record daily precipitation	28.2 mm (1.1 in)	26 of 100 (Routine)
Hebgen Dam	United States	Record daily precipitation	30.7 mm (1.2 in)	26 of 100 (Routine)
Chintamani	India	Record daily precipitation	55.4 mm (2.2 in)	25 of 100 (Routine)
Brooksville Chin Hill	United States	Record low maximum temperature	23.9 C (75.0 F)	25 of 100 (Routine)
Uttamachipura	India	Record daily precipitation	26.7 mm (1.1 in)	24 of 100 (Routine)
Federal Pt	United States	Record low maximum temperature	21.7 C (71.1 F)	24 of 100 (Routine)
Szombathely	Hungary	Record daily precipitation	28.4 mm (1.1 in)	23 of 100 (Routine)
Chittoor	India	Record daily precipitation	69.6 mm (2.7 in)	23 of 100 (Routine)
Marion	United States	Record low minimum temperature	0.0 C (32.0 F)	23 of 100 (Routine)
Eutawville	United States	Record low maximum temperature	19.4 C (66.9 F)	23 of 100 (Routine)
Moab	United States	Record high minimum temperature	18.9 C (66.0 F)	23 of 100 (Routine)
Gainesville UNIV of Fl	United States	Record low minimum temperature	12.8 C (55.0 F)	22 of 100 (Routine)
Alapaha Exp STN	United States	Record low maximum temperature	18.3 C (64.9 F)	22 of 100 (Routine)
Lexington	United States	Record low minimum temperature	0.6 C (33.1 F)	22 of 100 (Routine)
Milford 2 SE	United States	Record low minimum temperature	3.3 C (37.9 F)	21 of 100 (Routine)
Raiford State Prison	United States	Record low maximum temperature	18.3 C (64.9 F)	21 of 100 (Routine)
Eastman 1 W	United States	Record low maximum temperature	17.2 C (63.0 F)	21 of 100 (Routine)
Glennville 3NW	United States	Record low maximum temperature	18.3 C (64.9 F)	21 of 100 (Routine)
Toccoa	United States	Record low minimum temperature	4.4 C (39.9 F)	21 of 100 (Routine)
Salmon AP	United States	Record low maximum temperature	8.9 C (48.0 F)	21 of 100 (Routine)
Cullowhee	United States	Record low minimum temperature	-0.6 C (30.9 F)	21 of 100 (Routine)
Sloan 3 S	United States	Record low maximum temperature	17.8 C (64.0 F)	21 of 100 (Routine)
Florence #1	United States	Record low maximum temperature	18.3 C (64.9 F)	21 of 100 (Routine)
Butte Bert Mooney AP	United States	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Salmon AP	United States	Record daily precipitation	14.5 mm (0.6 in)	20 of 100 (Routine)
Pyramid Hill	Australia	Record daily precipitation	15.5 mm (0.6 in)	20 of 100 (Routine)
Naboomspruit (Pol)	South Africa	Record daily precipitation	14.7 mm (0.6 in)	20 of 100 (Routine)
Palani	India	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Aztec Ruins Nm	United States	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Petrusberg (Pol)	South Africa	Record daily precipitation	8.4 mm (0.33 in)	20 of 100 (Routine)
Beauchamp	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Selbu-Stubbe	Norway	Record daily precipitation	23.1 mm (0.9 in)	20 of 100 (Routine)
Murraysburg (Pol)	South Africa	Record daily precipitation	6.9 mm (0.27 in)	20 of 100 (Routine)
East Anaconda	United States	Record daily precipitation	12.2 mm (0.5 in)	20 of 100 (Routine)
Mackay Lost Rvr Rs	United States	Record daily precipitation	21.3 mm (0.8 in)	20 of 100 (Routine)
Ritzville 1 SSE	United States	Record daily precipitation	11.7 mm (0.5 in)	20 of 100 (Routine)
Lyndoch	Australia	Record daily precipitation	15.0 mm (0.6 in)	20 of 100 (Routine)
Kayatnur	India	Record daily precipitation	22.4 mm (0.9 in)	20 of 100 (Routine)
Durango	United States	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
Mildura Post Office	Australia	Record low maximum temperature	13.8 C (56.8 F)	20 of 100 (Routine)
Augsburg (Sankt Stephan)	Germany	Record daily precipitation	15.6 mm (0.6 in)	20 of 100 (Routine)
Verhojansk	Russia	Record low minimum temperature	-17.1 C (1.2 F)	20 of 100 (Routine)
Monticello 5 SE	United States	Record low maximum temperature	17.2 C (63.0 F)	20 of 100 (Routine)

Counts by Type and Timescale

419 records

Records set or tied on 28 September 1940 by type: Highest daily maximum 10, Lowest daily maximum 86, Highest daily minimum 52, Lowest daily minimum 131, Heaviest daily rainfall 139, Heaviest daily snowfall 1.

Records on 28 September 1940 by type
Record type	Records
Highest daily maximum	10
Lowest daily maximum	86
Highest daily minimum	52
Lowest daily minimum	131
Heaviest daily rainfall	139
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 28 September 1940 by timescale: all-time 0, monthly 23, daily 396.

How Much Records Were Beaten By

307 broken records

Margins by which the 307 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 40.9. Ties are not counted.

Top 20 by Significance

28 September 1940

Top 20 records on 28 September 1940 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 September 1940	Dillon U of Montana Western, US	daily rain	45.5 mm (1.8 in)	40.9 mm (1.6 in)	33 years	53 of 100 (Notable)
28 September 1940	Hamilton, US	daily rain	36.3 mm (1.4 in)	26.1 mm (1.0 in)	33 years	53 of 100 (Notable)
28 September 1940	Philipsburg, US	daily rain	33.0 mm (1.3 in)	19.8 mm (0.8 in)	35 years	45 of 100 (Notable)
28 September 1940	Puttur, IN	monthly rain	122.7 mm (4.8 in)	33.8 mm (1.3 in)	36 years	43 of 100 (Notable)
28 September 1940	Tooele, US	daily rain	26.7 mm (1.1 in)	18.1 mm (0.7 in)	37 years	38 of 100 (Notable)
28 September 1940	Graz, AT	daily rain	52.4 mm (2.1 in)	28.4 mm (1.1 in)	31 years	37 of 100 (Notable)
28 September 1940	Saint Maries, US	daily rain	31.0 mm (1.2 in)	17.0 mm (0.7 in)	13 years	35 of 100 (Notable)
28 September 1940	Dwtn Charleston, US	daily low max	17.8 C (64.0 F)	5.0 C (9.0 F)	46 years	35 of 100 (Notable)
28 September 1940	Jacksonville Wb City, US	daily low max	20.0 C (68.0 F)	2.2 C (4.0 F)	68 years	35 of 100 (Notable)
28 September 1940	Zuerich/Fluntern, CH	daily rain	32.8 mm (1.3 in)	22.7 mm (0.9 in)	12 years	34 of 100 (Routine)
28 September 1940	Coimbatore, IN	monthly rain	67.6 mm (2.7 in)	9.9 mm (0.39 in)	25 years	32 of 100 (Routine)
28 September 1940	Villiers (Pol), ZA	monthly rain	53.3 mm (2.1 in)	14.9 mm (0.6 in)	12 years	30 of 100 (Routine)
28 September 1940	Rocky Ford 2 SE, US	daily high min	18.9 C (66.0 F)	4.5 C (8.1 F)	46 years	28 of 100 (Routine)
28 September 1940	Mysore, IN	daily rain	50.8 mm (2.0 in)	16.5 mm (0.6 in)	39 years	27 of 100 (Routine)
28 September 1940	Georgetown 2 E, US	monthly low max	18.3 C (64.9 F)	0.6 C (1.1 F)	43 years	27 of 100 (Routine)
28 September 1940	Salzburg, AT	daily rain	39.5 mm (1.6 in)	16.9 mm (0.7 in)	29 years	26 of 100 (Routine)
28 September 1940	Poronajsk, RU	monthly low max	6.7 C (44.1 F)	1.8 C (3.2 F)	27 years	26 of 100 (Routine)
28 September 1940	Orofino, US	daily rain	28.2 mm (1.1 in)	14.5 mm (0.6 in)	13 years	26 of 100 (Routine)
28 September 1940	Hebgen Dam, US	monthly rain	30.7 mm (1.2 in)	3.8 mm (0.15 in)	22 years	26 of 100 (Routine)
28 September 1940	Chintamani, IN	daily rain	55.4 mm (2.2 in)	20.3 mm (0.8 in)	36 years	25 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

1794 to 1940

Records set or tied on this calendar date in each year from 1794 to 1940. 1940 had 419 records.

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

Records on 09-28 in each year
Year	Records
1794	1
1826	1
1832	1
1849	2
1851	1
1854	2
1855	2
1859	1
1862	1
1864	1
1866	1
1867	3
1868	1
1869	2
1873	3
1874	3
1877	3
1878	1
1879	1
1880	2
1881	3
1883	2
1884	1
1885	4
1887	1
1888	1
1890	4
1891	2
1892	3
1893	1
1894	6
1895	5
1896	3
1897	5
1898	4
1899	6
1900	9
1901	2
1902	5
1903	19
1904	17
1905	17
1906	37
1907	27
1908	23
1909	16
1910	39
1911	62
1912	32
1913	37
1914	28
1915	57
1916	61
1917	35
1918	55
1919	38
1920	23
1921	39
1922	34
1923	150
1924	139
1925	191
1926	305
1927	194
1928	205
1929	432
1930	116
1931	233
1932	195
1933	459
1934	237
1935	282
1936	502
1937	313
1938	311
1939	552
1940	419
1941	479
1942	1,187
1943	440
1944	367
1945	1,034
1946	347
1947	647
1948	617
1949	359
1950	233
1951	441
1952	366
1953	842
1954	512
1955	409
1956	590
1957	695
1958	509
1959	874
1960	226
1961	385
1962	705
1963	666
1964	723
1965	582
1966	477
1967	978
1968	262
1969	244
1970	932
1971	954
1972	671
1973	886
1974	583
1975	502
1976	900
1977	784
1978	513
1979	915
1980	750
1981	752
1982	1,001
1983	941
1984	1,326
1985	1,189
1986	1,264
1987	825
1988	623
1989	847
1990	414
1991	821
1992	643
1993	627
1994	836
1995	794
1996	1,069
1997	681
1998	1,541
1999	1,533
2000	652
2001	791
2002	743
2003	929
2004	852
2005	1,088
2006	704
2007	837
2008	536
2009	792
2010	1,139
2011	1,025
2012	624
2013	790
2014	878
2015	673
2016	520
2017	755
2018	527
2019	1,388
2020	531
2021	740
2022	727
2023	772
2024	1,364
2025	464
2026	531

Download the Data

Data for records on 1940-09-28: 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	274
10 to 20	25
20 to 30	6
30 to 40	1
40 to 50	1