Weather Records on 4 September 1945

542 weather records were set or tied worldwide on 4 September 1945. Highest significance: Vancouver 4 NNE, US.

Key Facts for 4 September 1945

On 4 September 1945, 542 weather records were set or tied at long-record stations worldwide.
305 were record highs and 79 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 57 monthly and 484 daily.
Vancouver 4 NNE set a daily record precipitation of 40.6 mm (1.6 in) on 4 September 1945.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 451 records.

Record Map

542 stations

542 station records on 4 September 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 4 September 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Vancouver 4 NNE	United States	Record daily precipitation	40.6 mm (1.6 in)	60 of 100 (Major)
Lake Wenatchee	United States	Record daily precipitation	26.7 mm (1.1 in)	57 of 100 (Notable)
Falls City 2 SSW	United States	Record daily precipitation	51.8 mm (2.0 in)	56 of 100 (Notable)
Puyallup 2 W Exp STN	United States	Record daily precipitation	41.9 mm (1.6 in)	49 of 100 (Notable)
Dwtn Charleston	United States	Record daily precipitation	115.1 mm (4.5 in)	48 of 100 (Notable)
Cedar Lake	United States	Record daily precipitation	82.8 mm (3.3 in)	41 of 100 (Notable)
Jacksonville Wb City	United States	Record daily precipitation	103.6 mm (4.1 in)	41 of 100 (Notable)
Inverloch	Australia	Record daily precipitation	32.0 mm (1.3 in)	40 of 100 (Notable)
Queenstown (Copper Mine)	Australia	Record daily precipitation	69.9 mm (2.8 in)	40 of 100 (Notable)
Forks 1 E	United States	Record daily precipitation	69.9 mm (2.8 in)	39 of 100 (Notable)
Zigzag Rs	United States	Record daily precipitation	48.8 mm (1.9 in)	37 of 100 (Notable)
Fernie	Canada	Record daily precipitation	45.2 mm (1.8 in)	36 of 100 (Notable)
Holbrook	United States	Record high minimum temperature	22.2 C (72.0 F)	36 of 100 (Notable)
Beaufort Wwtp	United States	Record daily precipitation	83.8 mm (3.3 in)	36 of 100 (Notable)
Brid Farm	Australia	Record daily precipitation	48.3 mm (1.9 in)	34 of 100 (Routine)
Leongatha (Veronica)	Australia	Record daily precipitation	33.0 mm (1.3 in)	33 of 100 (Routine)
Forest Grove	United States	Record daily precipitation	51.3 mm (2.0 in)	32 of 100 (Routine)
Kosmos	United States	Record daily precipitation	43.9 mm (1.7 in)	32 of 100 (Routine)
Cape Sorell	Australia	Record daily precipitation	33.3 mm (1.3 in)	31 of 100 (Routine)
Lakin	United States	Record high maximum temperature	41.7 C (107.1 F)	31 of 100 (Routine)
Mountainair	United States	Record high maximum temperature	35.0 C (95.0 F)	30 of 100 (Routine)
Santa Fe	United States	Record high maximum temperature	31.1 C (88.0 F)	30 of 100 (Routine)
Sailana	India	Record daily precipitation	57.9 mm (2.3 in)	29 of 100 (Routine)
Tahoe City	United States	Record high minimum temperature	15.6 C (60.1 F)	29 of 100 (Routine)
Beaufort Wwtp	United States	Record low maximum temperature	23.9 C (75.0 F)	29 of 100 (Routine)
Buckley 1 NE	United States	Record daily precipitation	45.5 mm (1.8 in)	29 of 100 (Routine)
Quinault Rs	United States	Record daily precipitation	54.4 mm (2.1 in)	29 of 100 (Routine)
Budgeree East (Claremont)	Australia	Record daily precipitation	30.5 mm (1.2 in)	28 of 100 (Routine)
Mangrol	India	Record daily precipitation	72.1 mm (2.8 in)	28 of 100 (Routine)
Mesa	United States	Record high maximum temperature	45.0 C (113.0 F)	28 of 100 (Routine)
Liberal	United States	Record high maximum temperature	42.2 C (108.0 F)	28 of 100 (Routine)
Ulysses 3NE	United States	Record high maximum temperature	41.7 C (107.1 F)	27 of 100 (Routine)
Bell Ranch	United States	Record high maximum temperature	40.6 C (105.1 F)	27 of 100 (Routine)
Branxholm (Stoke Street)	Australia	Record daily precipitation	43.2 mm (1.7 in)	26 of 100 (Routine)
Bar Harbor 3 NW	United States	Record low minimum temperature	3.9 C (39.0 F)	26 of 100 (Routine)
Dillon U of Montana Western	United States	Record high minimum temperature	17.8 C (64.0 F)	26 of 100 (Routine)
Kingstree	United States	Record low maximum temperature	23.9 C (75.0 F)	26 of 100 (Routine)
Landsburg	United States	Record daily precipitation	59.7 mm (2.4 in)	26 of 100 (Routine)
Powell	United States	Record high minimum temperature	20.0 C (68.0 F)	26 of 100 (Routine)
Newport	United States	Record daily precipitation	32.0 mm (1.3 in)	26 of 100 (Routine)
Poowong (Post Office)	Australia	Record daily precipitation	43.7 mm (1.7 in)	25 of 100 (Routine)
Qu'appelle	Canada	Record high minimum temperature	16.1 C (61.0 F)	25 of 100 (Routine)
Challis	United States	Record high minimum temperature	16.1 C (61.0 F)	25 of 100 (Routine)
Black Rock	United States	Record high maximum temperature	33.9 C (93.0 F)	25 of 100 (Routine)
Weatherford	United States	Record high minimum temperature	26.7 C (80.1 F)	25 of 100 (Routine)
Foster (Post Office)	Australia	Record daily precipitation	41.9 mm (1.6 in)	24 of 100 (Routine)
Zeehan Post Office	Australia	Record daily precipitation	75.2 mm (3.0 in)	24 of 100 (Routine)
Quitman 2 NW	United States	Record low maximum temperature	23.9 C (75.0 F)	24 of 100 (Routine)
Livingston	United States	Record high minimum temperature	20.6 C (69.1 F)	24 of 100 (Routine)
Conway	United States	Record low maximum temperature	22.8 C (73.0 F)	24 of 100 (Routine)
Toora	Australia	Record daily precipitation	31.0 mm (1.2 in)	23 of 100 (Routine)
Itabaianinha	Brazil	Record daily precipitation	32.2 mm (1.3 in)	23 of 100 (Routine)
Tanuku	India	Record daily precipitation	40.6 mm (1.6 in)	23 of 100 (Routine)
Baran	India	Record daily precipitation	62.2 mm (2.4 in)	23 of 100 (Routine)
Springerville	United States	Record high maximum temperature	32.8 C (91.0 F)	23 of 100 (Routine)
Monticello 5 SE	United States	Record low maximum temperature	23.3 C (73.9 F)	23 of 100 (Routine)
Ocala	United States	Record low maximum temperature	26.7 C (80.1 F)	23 of 100 (Routine)
Lake Moraine	United States	Record high minimum temperature	15.6 C (60.1 F)	22 of 100 (Routine)
Eustis 2 S	United States	Record low maximum temperature	30.0 C (86.0 F)	22 of 100 (Routine)
Garden City	United States	Record high maximum temperature	40.6 C (105.1 F)	22 of 100 (Routine)

Counts by Type and Timescale

542 records

Records set or tied on 4 September 1945 by type: Highest daily maximum 204, Lowest daily maximum 49, Highest daily minimum 101, Lowest daily minimum 30, Heaviest daily rainfall 158.

Records on 4 September 1945 by type
Record type	Records
Highest daily maximum	204
Lowest daily maximum	49
Highest daily minimum	101
Lowest daily minimum	30
Heaviest daily rainfall	158
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 4 September 1945 by timescale: all-time 1, monthly 57, daily 484.

How Much Records Were Beaten By

402 broken records

Margins by which the 402 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 92.0. Ties are not counted.

Top 20 by Significance

4 September 1945

Top 20 records on 4 September 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 September 1945	Vancouver 4 NNE, US	daily rain	40.6 mm (1.6 in)	18.5 mm (0.7 in)	88 years	60 of 100 (Major)
4 September 1945	Lake Wenatchee, US	daily rain	26.7 mm (1.1 in)	21.6 mm (0.9 in)	50 years	57 of 100 (Notable)
4 September 1945	Falls City 2 SSW, US	daily rain	51.8 mm (2.0 in)	38.6 mm (1.5 in)	45 years	56 of 100 (Notable)
4 September 1945	Puyallup 2 W Exp STN, US	daily rain	41.9 mm (1.6 in)	31.7 mm (1.2 in)	23 years	49 of 100 (Notable)
4 September 1945	Dwtn Charleston, US	daily rain	115.1 mm (4.5 in)	92.0 mm (3.6 in)	10 years	48 of 100 (Notable)
4 September 1945	Cedar Lake, US	monthly rain	82.8 mm (3.3 in)	24.4 mm (1.0 in)	29 years	41 of 100 (Notable)
4 September 1945	Jacksonville Wb City, US	daily rain	103.6 mm (4.1 in)	48.5 mm (1.9 in)	38 years	41 of 100 (Notable)
4 September 1945	Inverloch, AU	daily rain	32.0 mm (1.3 in)	12.9 mm (0.5 in)	46 years	40 of 100 (Notable)
4 September 1945	Queenstown (Copper Mine), AU	daily rain	69.9 mm (2.8 in)	35.4 mm (1.4 in)	19 years	40 of 100 (Notable)
4 September 1945	Forks 1 E, US	daily rain	69.9 mm (2.8 in)	44.0 mm (1.7 in)	32 years	39 of 100 (Notable)
4 September 1945	Zigzag Rs, US	daily rain	48.8 mm (1.9 in)	28.5 mm (1.1 in)	32 years	37 of 100 (Notable)
4 September 1945	Fernie, CA	daily rain	45.2 mm (1.8 in)	20.1 mm (0.8 in)	28 years	36 of 100 (Notable)
4 September 1945	Holbrook, US	monthly high min	22.2 C (72.0 F)	3.3 C (5.9 F)	45 years	36 of 100 (Notable)
4 September 1945	Beaufort Wwtp, US	daily rain	83.8 mm (3.3 in)	49.5 mm (1.9 in)	28 years	36 of 100 (Notable)
4 September 1945	Brid Farm, AU	daily rain	48.3 mm (1.9 in)	21.4 mm (0.8 in)	35 years	34 of 100 (Routine)
4 September 1945	Leongatha (Veronica), AU	daily rain	33.0 mm (1.3 in)	12.4 mm (0.5 in)	35 years	33 of 100 (Routine)
4 September 1945	Forest Grove, US	monthly rain	51.3 mm (2.0 in)	10.9 mm (0.4 in)	9 years	32 of 100 (Routine)
4 September 1945	Kosmos, US	monthly rain	43.9 mm (1.7 in)	6.6 mm (0.26 in)	33 years	32 of 100 (Routine)
4 September 1945	Cape Sorell, AU	daily rain	33.3 mm (1.3 in)	10.2 mm (0.4 in)	30 years	31 of 100 (Routine)
4 September 1945	Lakin, US	monthly high max	41.7 C (107.1 F)	1.1 C (2.0 F)	51 years	31 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

1802 to 1945

Records set or tied on this calendar date in each year from 1802 to 1945. 1945 had 542 records.

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

Records on 09-04 in each year
Year	Records
1802	1
1805	1
1823	1
1833	1
1837	1
1839	1
1845	1
1847	1
1850	1
1854	1
1856	1
1857	1
1858	1
1861	1
1863	1
1864	1
1867	1
1868	1
1869	2
1871	1
1872	4
1874	1
1875	1
1877	1
1880	4
1881	1
1883	2
1885	3
1887	1
1888	2
1889	1
1890	1
1891	5
1894	4
1895	6
1896	1
1897	4
1898	9
1899	4
1900	1
1901	4
1902	4
1903	2
1904	7
1905	18
1906	16
1907	22
1908	9
1909	23
1910	91
1911	25
1912	29
1913	29
1914	19
1915	37
1916	24
1917	40
1918	96
1919	48
1920	105
1921	105
1922	62
1923	325
1924	167
1925	339
1926	256
1927	68
1928	341
1929	371
1930	102
1931	477
1932	429
1933	424
1934	393
1935	514
1936	309
1937	411
1938	236
1939	434
1940	287
1941	528
1942	323
1943	472
1944	341
1945	542
1946	431
1947	618
1948	409
1949	370
1950	642
1951	404
1952	645
1953	869
1954	372
1955	465
1956	586
1957	250
1958	384
1959	316
1960	552
1961	909
1962	733
1963	443
1964	507
1965	611
1966	428
1967	786
1968	546
1969	510
1970	644
1971	717
1972	513
1973	530
1974	2,279
1975	432
1976	582
1977	386
1978	940
1979	461
1980	355
1981	582
1982	617
1983	1,040
1984	1,107
1985	915
1986	663
1987	685
1988	1,259
1989	681
1990	787
1991	708
1992	1,132
1993	859
1994	1,001
1995	1,287
1996	907
1997	1,452
1998	1,564
1999	1,479
2000	1,336
2001	833
2002	767
2003	1,094
2004	898
2005	998
2006	1,268
2007	1,077
2008	1,335
2009	914
2010	1,804
2011	1,310
2012	1,209
2013	630
2014	461
2015	893
2016	597
2017	881
2018	758
2019	616
2020	957
2021	544
2022	1,256
2023	1,290
2024	985
2025	635
2026	1,222

Download the Data

Data for records on 1945-09-04: 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 20	381
20 to 40	15
40 to 60	5
60 to 80	0
80 to 100	1