Weather Records on 4 May 1945

654 weather records were set or tied worldwide on 4 May 1945. Highest significance: Malung, SE.

Key Facts for 4 May 1945

On 4 May 1945, 654 weather records were set or tied at long-record stations worldwide.
129 were record highs and 294 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 19 monthly and 634 daily.
Malung set a daily record precipitation of 25.0 mm (1.0 in) on 4 May 1945.
Across 163 earlier years (1795 to 2026) the same calendar date averaged 429 records.

Record Map

654 stations

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

Weather records on 4 May 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Malung	Sweden	Record daily precipitation	25.0 mm (1.0 in)	58 of 100 (Notable)
Gundlupet	India	Record daily precipitation	85.9 mm (3.4 in)	54 of 100 (Notable)
Tailem Bend	Australia	Record daily precipitation	28.4 mm (1.1 in)	49 of 100 (Notable)
Coomandook	Australia	Record daily precipitation	27.2 mm (1.1 in)	48 of 100 (Notable)
Porto Real Do Colegio	Brazil	Record daily precipitation	116.3 mm (4.6 in)	43 of 100 (Notable)
Pianco	Brazil	Record daily precipitation	84.0 mm (3.3 in)	38 of 100 (Notable)
Dublin Phoenix Park	Ireland	Record low minimum temperature	-0.5 C (31.1 F)	37 of 100 (Notable)
Armagh	United Kingdom	Record low minimum temperature	-1.3 C (29.7 F)	37 of 100 (Notable)
Eastport	United States	Record daily precipitation	43.7 mm (1.7 in)	36 of 100 (Notable)
Cordova AP	United States	Record low minimum temperature	-6.1 C (21.0 F)	35 of 100 (Notable)
Anadia	Brazil	Record daily precipitation	73.6 mm (2.9 in)	33 of 100 (Routine)
Palmetto	United States	Record low maximum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Burnet	United States	Record low minimum temperature	4.4 C (39.9 F)	31 of 100 (Routine)
Atalaia	Brazil	Record daily precipitation	62.6 mm (2.5 in)	30 of 100 (Routine)
Adairsville	United States	Record low maximum temperature	13.9 C (57.0 F)	30 of 100 (Routine)
Seward AP	United States	Record low minimum temperature	-5.6 C (21.9 F)	30 of 100 (Routine)
Milan	Italy	Record low maximum temperature	9.6 C (49.3 F)	29 of 100 (Routine)
Basel Binningen	Switzerland	Record daily precipitation	31.1 mm (1.2 in)	29 of 100 (Routine)
Williamstown	United States	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)
Tanana AP	United States	Record low minimum temperature	-17.8 C (0.0 F)	29 of 100 (Routine)
Innsbruck	Austria	Record low minimum temperature	-1.7 C (28.9 F)	28 of 100 (Routine)
Simcoe	Canada	Record low maximum temperature	7.8 C (46.0 F)	28 of 100 (Routine)
Decatur 1 N	United States	Record low maximum temperature	11.1 C (52.0 F)	28 of 100 (Routine)
Lewisburg Exp STN	United States	Record low maximum temperature	11.1 C (52.0 F)	28 of 100 (Routine)
Pau Dos Ferros	Brazil	Record daily precipitation	97.0 mm (3.8 in)	27 of 100 (Routine)
Toccoa	United States	Record low maximum temperature	13.3 C (55.9 F)	27 of 100 (Routine)
Paulding	United States	Record daily precipitation	26.9 mm (1.1 in)	27 of 100 (Routine)
Kennecott	United States	Record low maximum temperature	1.1 C (34.0 F)	27 of 100 (Routine)
Jaguaribe	Brazil	Record daily precipitation	157.5 mm (6.2 in)	26 of 100 (Routine)
Karad	India	Record daily precipitation	32.0 mm (1.3 in)	26 of 100 (Routine)
Mc Minnville	United States	Record low maximum temperature	9.4 C (48.9 F)	26 of 100 (Routine)
Murfreesboro 5 N	United States	Record low maximum temperature	11.7 C (53.1 F)	26 of 100 (Routine)
Hobart (Ellerslie Road)	Australia	Record low minimum temperature	1.4 C (34.5 F)	25 of 100 (Routine)
Fredericton Cda	Canada	Record daily precipitation	33.3 mm (1.3 in)	25 of 100 (Routine)
Highlands	United States	Record low maximum temperature	8.9 C (48.0 F)	25 of 100 (Routine)
Darlington	United States	Record low maximum temperature	15.6 C (60.1 F)	25 of 100 (Routine)
Danevang 1 W	United States	Record low minimum temperature	8.3 C (46.9 F)	25 of 100 (Routine)
Shawinigan	Canada	Record daily precipitation	34.8 mm (1.4 in)	24 of 100 (Routine)
Udumalpet	India	Record daily precipitation	44.5 mm (1.8 in)	24 of 100 (Routine)
Athens	United States	Record low maximum temperature	15.6 C (60.1 F)	24 of 100 (Routine)
Lowell	United States	Record low maximum temperature	7.2 C (45.0 F)	24 of 100 (Routine)
Eastland	United States	Record low minimum temperature	0.6 C (33.1 F)	24 of 100 (Routine)
Allakaket	United States	Record low minimum temperature	-24.4 C (-11.9 F)	24 of 100 (Routine)
Holy Cross	United States	Record low minimum temperature	-15.6 C (3.9 F)	24 of 100 (Routine)
Campos Sales	Brazil	Record daily precipitation	25.6 mm (1.0 in)	23 of 100 (Routine)
Saskatoon U of S	Canada	Record daily snowfall	6.1 cm (2.4 in)	23 of 100 (Routine)
Grimsby Rock Chapel	Canada	Record daily precipitation	25.9 mm (1.0 in)	23 of 100 (Routine)
Middlesboro Fire Dept	United States	Record low maximum temperature	10.6 C (51.1 F)	23 of 100 (Routine)
Hot Springs 2	United States	Record low maximum temperature	8.3 C (46.9 F)	23 of 100 (Routine)
Rugby	United States	Record low maximum temperature	8.9 C (48.0 F)	23 of 100 (Routine)
Boerne	United States	Record low minimum temperature	3.3 C (37.9 F)	23 of 100 (Routine)
Sugar Land	United States	Record low maximum temperature	21.7 C (71.1 F)	23 of 100 (Routine)
Bowling Green Warren Co AP	United States	Record low maximum temperature	10.6 C (51.1 F)	23 of 100 (Routine)
Moscow U of I	United States	Record high minimum temperature	12.2 C (54.0 F)	22 of 100 (Routine)
Williamsburg 2	United States	Record low maximum temperature	10.6 C (51.1 F)	22 of 100 (Routine)
Broken Bow 2 W	United States	Record low minimum temperature	-5.6 C (21.9 F)	22 of 100 (Routine)
Dickson	United States	Record low maximum temperature	12.2 C (54.0 F)	22 of 100 (Routine)
Franklin Sewage Plt	United States	Record low maximum temperature	15.6 C (60.1 F)	22 of 100 (Routine)
Hallettsville 2 N	United States	Record low minimum temperature	7.8 C (46.0 F)	22 of 100 (Routine)
Sertania (Alagoa de Baixo)	Brazil	Record daily precipitation	43.2 mm (1.7 in)	21 of 100 (Routine)

Counts by Type and Timescale

654 records

Records set or tied on 4 May 1945 by type: Highest daily maximum 63, Lowest daily maximum 174, Highest daily minimum 66, Lowest daily minimum 120, Heaviest daily rainfall 230, Heaviest daily snowfall 1.

Records on 4 May 1945 by type
Record type	Records
Highest daily maximum	63
Lowest daily maximum	174
Highest daily minimum	66
Lowest daily minimum	120
Heaviest daily rainfall	230
Heaviest daily snowfall	1
Deepest snow cover	0

Records on 4 May 1945 by timescale: all-time 1, monthly 19, daily 634.

How Much Records Were Beaten By

526 broken records

Margins by which the 526 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 87.8. Ties are not counted.

Top 20 by Significance

4 May 1945

Top 20 records on 4 May 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
4 May 1945	Malung, SE	daily rain	25.0 mm (1.0 in)	16.9 mm (0.7 in)	62 years	58 of 100 (Notable)
4 May 1945	Gundlupet, IN	daily rain	85.9 mm (3.4 in)	60.5 mm (2.4 in)	34 years	54 of 100 (Notable)
4 May 1945	Tailem Bend, AU	daily rain	28.4 mm (1.1 in)	19.3 mm (0.8 in)	36 years	49 of 100 (Notable)
4 May 1945	Coomandook, AU	daily rain	27.2 mm (1.1 in)	24.9 mm (1.0 in)	23 years	48 of 100 (Notable)
4 May 1945	Porto Real Do Colegio, BR	daily rain	116.3 mm (4.6 in)	87.8 mm (3.5 in)	2 years	43 of 100 (Notable)
4 May 1945	Pianco, BR	monthly rain	84.0 mm (3.3 in)	19.5 mm (0.8 in)	32 years	38 of 100 (Notable)
4 May 1945	Dublin Phoenix Park, IE	monthly low min	-0.5 C (31.1 F)	0.1 C (0.2 F)	69 years	37 of 100 (Notable)
4 May 1945	Armagh, GB	daily low min	-1.3 C (29.7 F)	0.3 C (0.5 F)	89 years	37 of 100 (Notable)
4 May 1945	Eastport, US	daily rain	43.7 mm (1.7 in)	12.5 mm (0.5 in)	42 years	36 of 100 (Notable)
4 May 1945	Cordova AP, US	daily low min	-6.1 C (21.0 F)	5.5 C (9.9 F)	23 years	35 of 100 (Notable)
4 May 1945	Anadia, BR	daily rain	73.6 mm (2.9 in)	35.9 mm (1.4 in)	20 years	33 of 100 (Routine)
4 May 1945	Palmetto, US	daily low max	10.0 C (50.0 F)	5.6 C (10.1 F)	47 years	32 of 100 (Routine)
4 May 1945	Burnet, US	daily low min	4.4 C (39.9 F)	5.0 C (9.0 F)	42 years	31 of 100 (Routine)
4 May 1945	Atalaia, BR	daily rain	62.6 mm (2.5 in)	23.7 mm (0.9 in)	27 years	30 of 100 (Routine)
4 May 1945	Adairsville, US	daily low max	13.9 C (57.0 F)	4.4 C (7.9 F)	51 years	30 of 100 (Routine)
4 May 1945	Seward AP, US	daily low min	-5.6 C (21.9 F)	4.5 C (8.1 F)	24 years	30 of 100 (Routine)
4 May 1945	Milan, IT	daily low max	9.6 C (49.3 F)	1.8 C (3.2 F)	52 years	29 of 100 (Routine)
4 May 1945	Basel Binningen, CH	daily rain	31.1 mm (1.2 in)	12.7 mm (0.5 in)	16 years	29 of 100 (Routine)
4 May 1945	Williamstown, US	daily rain	30.5 mm (1.2 in)	7.6 mm (0.30 in)	46 years	29 of 100 (Routine)
4 May 1945	Tanana AP, US	daily low min	-17.8 C (0.0 F)	7.8 C (14.0 F)	28 years	29 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

1795 to 1945

Records set or tied on this calendar date in each year from 1795 to 1945. 1945 had 654 records.

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

Records on 05-04 in each year
Year	Records
1795	1
1796	1
1820	1
1836	2
1840	1
1847	1
1850	2
1851	2
1852	1
1856	3
1858	1
1859	1
1861	2
1862	1
1864	3
1865	2
1868	3
1869	1
1870	2
1875	1
1877	2
1878	1
1879	1
1880	1
1882	1
1885	1
1886	1
1888	1
1889	4
1890	1
1892	4
1893	3
1894	6
1895	3
1896	3
1897	2
1898	2
1899	2
1900	2
1902	5
1903	8
1904	8
1905	19
1906	5
1907	37
1908	18
1909	13
1910	14
1911	37
1912	12
1913	63
1914	21
1915	75
1916	57
1917	60
1918	30
1919	69
1920	43
1921	62
1922	283
1923	82
1924	88
1925	80
1926	230
1927	112
1928	205
1929	177
1930	269
1931	169
1932	104
1933	274
1934	456
1935	518
1936	313
1937	230
1938	445
1939	295
1940	602
1941	436
1942	820
1943	358
1944	872
1945	654
1946	463
1947	649
1948	578
1949	1,130
1950	953
1951	292
1952	698
1953	389
1954	1,045
1955	471
1956	433
1957	433
1958	414
1959	613
1960	443
1961	466
1962	265
1963	313
1964	570
1965	433
1966	1,113
1967	928
1968	304
1969	377
1970	454
1971	810
1972	364
1973	313
1974	367
1975	683
1976	554
1977	736
1978	1,016
1979	1,529
1980	511
1981	667
1982	591
1983	539
1984	885
1985	821
1986	1,128
1987	1,004
1988	591
1989	743
1990	1,461
1991	1,088
1992	933
1993	791
1994	821
1995	974
1996	1,298
1997	962
1998	898
1999	1,167
2000	1,398
2001	1,345
2002	1,343
2003	1,158
2004	1,341
2005	1,152
2006	650
2007	699
2008	624
2009	727
2010	999
2011	1,023
2012	1,343
2013	1,447
2014	602
2015	622
2016	463
2017	669
2018	972
2019	574
2020	504
2021	616
2022	470
2023	681
2024	885
2025	456
2026	554

Download the Data

Data for records on 1945-05-04: 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	514
20 to 40	9
40 to 60	0
60 to 80	2
80 to 100	1