Weather Records on 27 September 1945

475 weather records were set or tied worldwide on 27 September 1945. Highest significance: Port Arthur, AU.

Key Facts for 27 September 1945

On 27 September 1945, 475 weather records were set or tied at long-record stations worldwide.
124 were record highs and 140 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 19 monthly and 456 daily.
Port Arthur set a daily record precipitation of 33.8 mm (1.3 in) on 27 September 1945.
Across 154 earlier years (1799 to 2026) the same calendar date averaged 451 records.

Record Map

475 stations

475 station records on 27 September 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 27 September 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Port Arthur	Australia	Record daily precipitation	33.8 mm (1.3 in)	62 of 100 (Major)
Pinsk	Belarus	Record daily precipitation	32.8 mm (1.3 in)	60 of 100 (Major)
Garhshankar	India	Record daily precipitation	166.4 mm (6.6 in)	57 of 100 (Notable)
Mt Vernon 3 NE	United States	Record daily precipitation	82.8 mm (3.3 in)	50 of 100 (Notable)
Henrietta	United States	Record daily precipitation	103.6 mm (4.1 in)	46 of 100 (Notable)
Jetmore	United States	Record daily precipitation	62.2 mm (2.4 in)	45 of 100 (Notable)
York	United States	Record daily precipitation	43.7 mm (1.7 in)	43 of 100 (Notable)
Perry	United States	Record daily precipitation	89.9 mm (3.5 in)	41 of 100 (Notable)
Waterdale	United States	Record daily snowfall	7.6 cm (3.0 in)	40 of 100 (Notable)
Harrison	United States	Record daily snowfall	10.2 cm (4.0 in)	40 of 100 (Notable)
Concordia ASOS	United States	Record daily precipitation	31.8 mm (1.3 in)	39 of 100 (Notable)
Spicer	United States	Record daily snowfall	12.7 cm (5.0 in)	38 of 100 (Notable)
Bertrand	United States	Record daily precipitation	48.5 mm (1.9 in)	38 of 100 (Notable)
David City 4E	United States	Record daily precipitation	84.3 mm (3.3 in)	38 of 100 (Notable)
Hoshiarpur	India	Record daily precipitation	90.2 mm (3.6 in)	37 of 100 (Notable)
Hoburg	Sweden	Record daily precipitation	32.0 mm (1.3 in)	36 of 100 (Notable)
Wray	United States	Record daily precipitation	30.5 mm (1.2 in)	36 of 100 (Notable)
Bridgeport	United States	Record daily snowfall	10.2 cm (4.0 in)	36 of 100 (Notable)
Waurika	United States	Record daily precipitation	78.2 mm (3.1 in)	36 of 100 (Notable)
Paxton	United States	Record daily precipitation	29.2 mm (1.1 in)	34 of 100 (Routine)
Pandaria	India	Record daily precipitation	54.6 mm (2.1 in)	33 of 100 (Routine)
Holyoke	United States	Record daily precipitation	35.6 mm (1.4 in)	33 of 100 (Routine)
Hay Springs	United States	Record daily snowfall	6.9 cm (2.7 in)	33 of 100 (Routine)
Muskegon Co AP	United States	Record daily precipitation	35.8 mm (1.4 in)	33 of 100 (Routine)
Marble Bar Comparison	Australia	Record low maximum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Napa State Hospital	United States	Record high minimum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Alliance 1WNW	United States	Record daily snowfall	10.2 cm (4.0 in)	32 of 100 (Routine)
Oshkosh	United States	Record daily snowfall	5.1 cm (2.0 in)	32 of 100 (Routine)
Sidney 6NNW	United States	Record daily precipitation	27.9 mm (1.1 in)	32 of 100 (Routine)
Nashville 1 E	United States	Record daily precipitation	41.9 mm (1.6 in)	30 of 100 (Routine)
Pauls Valley 4 WSW	United States	Record daily precipitation	92.7 mm (3.6 in)	30 of 100 (Routine)
Perryton	United States	Record daily precipitation	53.8 mm (2.1 in)	30 of 100 (Routine)
Shawnee	United States	Record daily precipitation	112.3 mm (4.4 in)	29 of 100 (Routine)
Honey Grove	United States	Record daily precipitation	110.5 mm (4.4 in)	29 of 100 (Routine)
Ardmore	United States	Record daily precipitation	78.0 mm (3.1 in)	28 of 100 (Routine)
Chattanooga	United States	Record daily precipitation	81.3 mm (3.2 in)	28 of 100 (Routine)
Landsort	Sweden	Record daily precipitation	25.6 mm (1.0 in)	27 of 100 (Routine)
Scottsburg	United States	Record daily precipitation	47.5 mm (1.9 in)	27 of 100 (Routine)
Kamloops	Canada	Record low minimum temperature	-1.7 C (28.9 F)	26 of 100 (Routine)
Little Sioux	United States	Record daily precipitation	29.0 mm (1.1 in)	26 of 100 (Routine)
Toledo 3N	United States	Record daily precipitation	65.3 mm (2.6 in)	26 of 100 (Routine)
Bridgeport	United States	Record snow depth	10.2 cm (4.0 in)	26 of 100 (Routine)
Chugwater	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Lusk 2 SW	United States	Record daily snowfall	12.7 cm (5.0 in)	26 of 100 (Routine)
Tanakal(Tanakall)	India	Record daily precipitation	40.6 mm (1.6 in)	25 of 100 (Routine)
Ada	United States	Record daily precipitation	102.9 mm (4.1 in)	25 of 100 (Routine)
Greenville Dwtn AP	United States	Record high minimum temperature	20.0 C (68.0 F)	25 of 100 (Routine)
Minsk	Belarus	Record daily precipitation	32.7 mm (1.3 in)	24 of 100 (Routine)
Minnedosa	Canada	Record low maximum temperature	2.8 C (37.0 F)	24 of 100 (Routine)
Sairang	India	Record daily precipitation	79.0 mm (3.1 in)	24 of 100 (Routine)
Clay Ctr	United States	Record daily precipitation	25.7 mm (1.0 in)	24 of 100 (Routine)
Gatesville	United States	Record high minimum temperature	25.6 C (78.1 F)	24 of 100 (Routine)
Sidhout(Siddavat)	India	Record daily precipitation	62.5 mm (2.5 in)	23 of 100 (Routine)
Fremont	United States	Record daily precipitation	37.1 mm (1.5 in)	23 of 100 (Routine)
Pawnee City	United States	Record daily precipitation	30.5 mm (1.2 in)	23 of 100 (Routine)
Humboldt	Canada	Record low minimum temperature	-10.0 C (14.0 F)	22 of 100 (Routine)
Seleng	India	Record daily precipitation	72.4 mm (2.9 in)	22 of 100 (Routine)
Du Quoin 4 SE	United States	Record daily precipitation	36.1 mm (1.4 in)	22 of 100 (Routine)
Schuyler	United States	Record daily precipitation	36.3 mm (1.4 in)	22 of 100 (Routine)
Carson City	United States	Record low maximum temperature	15.6 C (60.1 F)	22 of 100 (Routine)

Counts by Type and Timescale

475 records

Records set or tied on 27 September 1945 by type: Highest daily maximum 15, Lowest daily maximum 62, Highest daily minimum 109, Lowest daily minimum 78, Heaviest daily rainfall 190, Heaviest daily snowfall 18, Deepest snow cover 3.

Records on 27 September 1945 by type
Record type	Records
Highest daily maximum	15
Lowest daily maximum	62
Highest daily minimum	109
Lowest daily minimum	78
Heaviest daily rainfall	190
Heaviest daily snowfall	18
Deepest snow cover	3

Records on 27 September 1945 by timescale: all-time 0, monthly 19, daily 456.

How Much Records Were Beaten By

368 broken records

Margins by which the 368 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 166.4. Ties are not counted.

Top 20 by Significance

27 September 1945

Top 20 records on 27 September 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
27 September 1945	Port Arthur, AU	daily rain	33.8 mm (1.3 in)	22.4 mm (0.9 in)	40 years	62 of 100 (Major)
27 September 1945	Pinsk, BY	daily rain	32.8 mm (1.3 in)	23.5 mm (0.9 in)	50 years	60 of 100 (Major)
27 September 1945	Garhshankar, IN	daily rain	166.4 mm (6.6 in)	166.4 mm (6.6 in)	44 years	57 of 100 (Notable)
27 September 1945	Mt Vernon 3 NE, US	daily rain	82.8 mm (3.3 in)	46.2 mm (1.8 in)	48 years	50 of 100 (Notable)
27 September 1945	Henrietta, US	daily rain	103.6 mm (4.1 in)	75.7 mm (3.0 in)	8 years	46 of 100 (Notable)
27 September 1945	Jetmore, US	daily rain	62.2 mm (2.4 in)	44.2 mm (1.7 in)	16 years	45 of 100 (Notable)
27 September 1945	York, US	daily rain	43.7 mm (1.7 in)	38.6 mm (1.5 in)	38 years	43 of 100 (Notable)
27 September 1945	Perry, US	daily rain	89.9 mm (3.5 in)	63.5 mm (2.5 in)	0 years	41 of 100 (Notable)
27 September 1945	Waterdale, US	monthly snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	39 years	40 of 100 (Notable)
27 September 1945	Harrison, US	daily snowfall	10.2 cm (4.0 in)	10.2 cm (4.0 in)	51 years	40 of 100 (Notable)
27 September 1945	Concordia ASOS, US	daily rain	31.8 mm (1.3 in)	22.7 mm (0.9 in)	53 years	39 of 100 (Notable)
27 September 1945	Spicer, US	daily snowfall	12.7 cm (5.0 in)	12.7 cm (5.0 in)	35 years	38 of 100 (Notable)
27 September 1945	Bertrand, US	daily rain	48.5 mm (1.9 in)	37.8 mm (1.5 in)	12 years	38 of 100 (Notable)
27 September 1945	David City 4E, US	monthly rain	84.3 mm (3.3 in)	13.2 mm (0.5 in)	45 years	38 of 100 (Notable)
27 September 1945	Hoshiarpur, IN	daily rain	90.2 mm (3.6 in)	80.0 mm (3.1 in)	12 years	37 of 100 (Notable)
27 September 1945	Hoburg, SE	daily rain	32.0 mm (1.3 in)	18.3 mm (0.7 in)	19 years	36 of 100 (Notable)
27 September 1945	Wray, US	daily rain	30.5 mm (1.2 in)	26.7 mm (1.1 in)	32 years	36 of 100 (Notable)
27 September 1945	Bridgeport, US	monthly snowfall	10.2 cm (4.0 in)	5.1 cm (2.0 in)	42 years	36 of 100 (Notable)
27 September 1945	Waurika, US	daily rain	78.2 mm (3.1 in)	59.9 mm (2.4 in)	18 years	36 of 100 (Notable)
27 September 1945	Paxton, US	daily rain	29.2 mm (1.1 in)	26.7 mm (1.1 in)	32 years	34 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

1799 to 1945

Records set or tied on this calendar date in each year from 1799 to 1945. 1945 had 475 records.

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

Records on 09-27 in each year
Year	Records
1799	1
1828	1
1836	2
1847	1
1851	1
1854	2
1855	2
1859	2
1866	2
1867	3
1874	1
1875	1
1877	2
1880	1
1881	4
1882	1
1885	5
1887	1
1890	3
1891	1
1892	1
1893	1
1894	5
1895	6
1896	1
1897	2
1898	4
1899	1
1900	5
1901	3
1902	12
1903	7
1904	12
1905	21
1906	21
1907	9
1908	36
1909	17
1910	20
1911	31
1912	25
1913	27
1914	24
1915	80
1916	57
1917	41
1918	58
1919	45
1920	54
1921	26
1922	111
1923	125
1924	115
1925	129
1926	581
1927	244
1928	288
1929	225
1930	178
1931	222
1932	194
1933	559
1934	298
1935	319
1936	435
1937	309
1938	366
1939	572
1940	706
1941	257
1942	1,353
1943	503
1944	323
1945	475
1946	387
1947	813
1948	405
1949	407
1950	223
1951	480
1952	539
1953	567
1954	507
1955	386
1956	825
1957	644
1958	585
1959	582
1960	337
1961	376
1962	352
1963	849
1964	724
1965	688
1966	426
1967	502
1968	286
1969	233
1970	773
1971	762
1972	989
1973	1,031
1974	408
1975	790
1976	905
1977	852
1978	773
1979	741
1980	559
1981	680
1982	1,076
1983	791
1984	1,297
1985	661
1986	1,772
1987	1,013
1988	494
1989	852
1990	379
1991	894
1992	659
1993	727
1994	764
1995	698
1996	1,468
1997	730
1998	1,774
1999	1,059
2000	1,031
2001	980
2002	992
2003	830
2004	665
2005	1,061
2006	596
2007	1,091
2008	659
2009	987
2010	1,153
2011	965
2012	624
2013	823
2014	813
2015	664
2016	600
2017	891
2018	600
2019	755
2020	659
2021	893
2022	642
2023	747
2024	1,449
2025	272
2026	358

Download the Data

Data for records on 1945-09-27: 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 25	330
25 to 50	22
50 to 75	7
75 to 100	6
100 to 125	1
125 to 150	1
150 to 175	1