Weather Records on 1 May 1945

350 weather records were set or tied worldwide on 1 May 1945. Highest significance: Parnamirim (Leopoldina), BR.

Key Facts for 1 May 1945

On 1 May 1945, 350 weather records were set or tied at long-record stations worldwide.
125 were record highs and 110 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 29 monthly and 320 daily.
Parnamirim (Leopoldina) set a daily record precipitation of 60.0 mm (2.4 in) on 1 May 1945.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 443 records.

Record Map

350 stations

350 station records on 1 May 1945 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 May 1945: highest significance records shown on the map
Station	Country	Type	Value	Significance
Parnamirim (Leopoldina)	Brazil	Record daily precipitation	60.0 mm (2.4 in)	50 of 100 (Notable)
Crateus	Brazil	Record daily precipitation	58.2 mm (2.3 in)	49 of 100 (Notable)
Mundo Novo	Brazil	Record daily precipitation	50.0 mm (2.0 in)	49 of 100 (Notable)
Sao Joao Do Sabugi	Brazil	Record daily precipitation	95.2 mm (3.7 in)	42 of 100 (Notable)
Orenburg	Russia	Record daily precipitation	25.1 mm (1.0 in)	42 of 100 (Notable)
Itaporanga (Misericordia)	Brazil	Record daily precipitation	88.2 mm (3.5 in)	39 of 100 (Notable)
Conceicao	Brazil	Record daily precipitation	82.0 mm (3.2 in)	39 of 100 (Notable)
Sao Joao Do Cariri	Brazil	Record daily precipitation	106.0 mm (4.2 in)	37 of 100 (Notable)
Munchen-Nymphenburg	Germany	Record low maximum temperature	2.6 C (36.7 F)	37 of 100 (Notable)
Carinhanha	Brazil	Record daily precipitation	27.2 mm (1.1 in)	34 of 100 (Routine)
Innsbruck	Austria	Record low maximum temperature	3.6 C (38.5 F)	33 of 100 (Routine)
Ico	Brazil	Record daily precipitation	56.0 mm (2.2 in)	33 of 100 (Routine)
Campos Sales	Brazil	Record daily precipitation	135.3 mm (5.3 in)	33 of 100 (Routine)
Sable Island	Canada	Record daily precipitation	27.2 mm (1.1 in)	33 of 100 (Routine)
Augsburg (Sankt Stephan)	Germany	Record low maximum temperature	4.5 C (40.1 F)	31 of 100 (Routine)
Perumbalur	India	Record daily precipitation	46.2 mm (1.8 in)	31 of 100 (Routine)
Afogados da Ingazeira (Dnocs)	Brazil	Record daily precipitation	39.0 mm (1.5 in)	30 of 100 (Routine)
Stuttgart-Stadt	Germany	Record low maximum temperature	2.0 C (35.6 F)	30 of 100 (Routine)
Davangire	India	Record daily precipitation	42.7 mm (1.7 in)	30 of 100 (Routine)
Grand Forks UNIV (NWS)	United States	Record daily snowfall	8.9 cm (3.5 in)	29 of 100 (Routine)
Newton	United States	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Melur	India	Record daily precipitation	117.3 mm (4.6 in)	27 of 100 (Routine)
Lawrenceville 2 S	United States	Record daily snowfall	5.1 cm (2.0 in)	27 of 100 (Routine)
Flores (Dnocs)	Brazil	Record daily precipitation	62.0 mm (2.4 in)	26 of 100 (Routine)
Martins	Brazil	Record daily precipitation	100.0 mm (3.9 in)	26 of 100 (Routine)
Hukeri	India	Record daily precipitation	33.5 mm (1.3 in)	26 of 100 (Routine)
Mayville	United States	Record daily snowfall	5.1 cm (2.0 in)	26 of 100 (Routine)
Antenor Navarro	Brazil	Record daily precipitation	44.8 mm (1.8 in)	25 of 100 (Routine)
Sulphur	United States	Record high minimum temperature	15.6 C (60.1 F)	25 of 100 (Routine)
Moorestown 4 E	United States	Record low maximum temperature	8.9 C (48.0 F)	25 of 100 (Routine)
Portland Rfc City	United States	Record high maximum temperature	28.3 C (82.9 F)	25 of 100 (Routine)
Nome AP	United States	Record low maximum temperature	-12.2 C (10.0 F)	25 of 100 (Routine)
Geneve Observatoire	Switzerland	Record low minimum temperature	-1.7 C (28.9 F)	24 of 100 (Routine)
Hatfield	United States	Record low minimum temperature	-7.8 C (18.0 F)	24 of 100 (Routine)
Marble Bar Comparison	Australia	Record high maximum temperature	39.4 C (102.9 F)	22 of 100 (Routine)
Galway	Ireland	Record low maximum temperature	8.9 C (48.0 F)	22 of 100 (Routine)
Hailey 3 NNW	United States	Record high maximum temperature	25.0 C (77.0 F)	22 of 100 (Routine)
World Trade Ctr	United States	Record daily precipitation	28.7 mm (1.1 in)	22 of 100 (Routine)
Ouricuri	Brazil	Record daily precipitation	63.0 mm (2.5 in)	21 of 100 (Routine)
Paisley	United Kingdom	Record low minimum temperature	-2.8 C (27.0 F)	21 of 100 (Routine)
Austin #2	United States	Record high minimum temperature	8.9 C (48.0 F)	21 of 100 (Routine)
Jersey City	United States	Record daily precipitation	25.4 mm (1.0 in)	21 of 100 (Routine)
Bajandaj	Russia	Record daily precipitation	10.0 mm (0.4 in)	20 of 100 (Routine)
Ulan-Ude	Russia	Record daily precipitation	12.8 mm (0.5 in)	20 of 100 (Routine)
Mount Playfair	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Belleville	Canada	Record daily snowfall	0.3 cm (0.1 in)	20 of 100 (Routine)
Mt Pocono 2 N	United States	Record daily snowfall	2.5 cm (1.0 in)	20 of 100 (Routine)
Barguzin	Russia	Record daily precipitation	7.4 mm (0.29 in)	20 of 100 (Routine)
Mt Pocono 2 N	United States	Record snow depth	2.5 cm (1.0 in)	20 of 100 (Routine)
Corinda	Australia	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Mt Tamborine Fern St	Australia	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Paterson	United States	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Mangalgiri	India	Record daily precipitation	11.2 mm (0.4 in)	20 of 100 (Routine)
Kaikalur	India	Record daily precipitation	12.7 mm (0.5 in)	20 of 100 (Routine)
Towanda 1 S	United States	Record daily snowfall	3.8 cm (1.5 in)	20 of 100 (Routine)
Holmleigh	Australia	Record daily precipitation	7.6 mm (0.30 in)	20 of 100 (Routine)
Avanigadda	India	Record daily precipitation	9.9 mm (0.39 in)	20 of 100 (Routine)
Mykland	Norway	Record daily precipitation	16.2 mm (0.6 in)	20 of 100 (Routine)
Santa Luzia	Brazil	Record daily precipitation	54.0 mm (2.1 in)	20 of 100 (Routine)
Crato	Brazil	Record daily precipitation	38.8 mm (1.5 in)	20 of 100 (Routine)

Counts by Type and Timescale

350 records

Records set or tied on 1 May 1945 by type: Highest daily maximum 93, Lowest daily maximum 40, Highest daily minimum 32, Lowest daily minimum 70, Heaviest daily rainfall 105, Heaviest daily snowfall 8, Deepest snow cover 2.

Records on 1 May 1945 by type
Record type	Records
Highest daily maximum	93
Lowest daily maximum	40
Highest daily minimum	32
Lowest daily minimum	70
Heaviest daily rainfall	105
Heaviest daily snowfall	8
Deepest snow cover	2

Records on 1 May 1945 by timescale: all-time 1, monthly 29, daily 320.

How Much Records Were Beaten By

271 broken records

Margins by which the 271 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 81.0. Ties are not counted.

Top 20 by Significance

1 May 1945

Top 20 records on 1 May 1945 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 1945	Parnamirim (Leopoldina), BR	daily rain	60.0 mm (2.4 in)	46.4 mm (1.8 in)	28 years	50 of 100 (Notable)
1 May 1945	Crateus, BR	daily rain	58.2 mm (2.3 in)	41.7 mm (1.6 in)	20 years	49 of 100 (Notable)
1 May 1945	Mundo Novo, BR	monthly rain	50.0 mm (2.0 in)	18.6 mm (0.7 in)	8 years	49 of 100 (Notable)
1 May 1945	Sao Joao Do Sabugi, BR	monthly rain	95.2 mm (3.7 in)	27.1 mm (1.1 in)	30 years	42 of 100 (Notable)
1 May 1945	Orenburg, RU	daily rain	25.1 mm (1.0 in)	16.2 mm (0.6 in)	22 years	42 of 100 (Notable)
1 May 1945	Itaporanga (Misericordia), BR	daily rain	88.2 mm (3.5 in)	49.3 mm (1.9 in)	24 years	39 of 100 (Notable)
1 May 1945	Conceicao, BR	daily rain	82.0 mm (3.2 in)	56.6 mm (2.2 in)	16 years	39 of 100 (Notable)
1 May 1945	Sao Joao Do Cariri, BR	monthly rain	106.0 mm (4.2 in)	26.8 mm (1.1 in)	4 years	37 of 100 (Notable)
1 May 1945	Munchen-Nymphenburg, DE	monthly low max	2.6 C (36.7 F)	1.3 C (2.3 F)	65 years	37 of 100 (Notable)
1 May 1945	Carinhanha, BR	daily rain	27.2 mm (1.1 in)	23.8 mm (0.9 in)	28 years	34 of 100 (Routine)
1 May 1945	Innsbruck, AT	monthly low max	3.6 C (38.5 F)	0.4 C (0.7 F)	58 years	33 of 100 (Routine)
1 May 1945	Ico, BR	daily rain	56.0 mm (2.2 in)	28.8 mm (1.1 in)	32 years	33 of 100 (Routine)
1 May 1945	Campos Sales, BR	all-time rain	135.3 mm (5.3 in)	6.5 mm (0.26 in)	22 years	33 of 100 (Routine)
1 May 1945	Sable Island, CA	daily rain	27.2 mm (1.1 in)	17.5 mm (0.7 in)	36 years	33 of 100 (Routine)
1 May 1945	Augsburg (Sankt Stephan), DE	monthly low max	4.5 C (40.1 F)	0.7 C (1.3 F)	49 years	31 of 100 (Routine)
1 May 1945	Perumbalur, IN	daily rain	46.2 mm (1.8 in)	36.5 mm (1.4 in)	11 years	31 of 100 (Routine)
1 May 1945	Afogados da Ingazeira (Dnocs), BR	daily rain	39.0 mm (1.5 in)	20.7 mm (0.8 in)	24 years	30 of 100 (Routine)
1 May 1945	Stuttgart-Stadt, DE	monthly low max	2.0 C (35.6 F)	2.0 C (3.6 F)	44 years	30 of 100 (Routine)
1 May 1945	Davangire, IN	daily rain	42.7 mm (1.7 in)	28.7 mm (1.1 in)	31 years	30 of 100 (Routine)
1 May 1945	Grand Forks UNIV (NWS), US	daily snowfall	8.9 cm (3.5 in)	8.1 cm (3.2 in)	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 350 records.

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

Records on 05-01 in each year
Year	Records
1795	1
1802	1
1804	1
1814	1
1818	1
1835	1
1836	1
1840	1
1846	2
1847	1
1850	1
1851	1
1857	1
1860	1
1861	1
1864	2
1865	1
1868	2
1872	1
1875	4
1878	2
1879	2
1880	3
1881	2
1884	1
1885	1
1886	2
1887	2
1888	2
1889	3
1890	2
1891	5
1892	6
1893	2
1894	5
1896	1
1897	4
1898	1
1899	8
1900	1
1901	5
1902	7
1903	9
1904	9
1905	13
1906	12
1907	31
1908	20
1909	49
1910	13
1911	22
1912	18
1913	54
1914	23
1915	27
1916	27
1917	37
1918	34
1919	150
1920	186
1921	41
1922	92
1923	64
1924	63
1925	118
1926	500
1927	125
1928	190
1929	142
1930	263
1931	537
1932	220
1933	706
1934	305
1935	276
1936	368
1937	218
1938	304
1939	227
1940	731
1941	333
1942	1,036
1943	526
1944	229
1945	350
1946	415
1947	655
1948	774
1949	405
1950	439
1951	894
1952	557
1953	917
1954	1,506
1955	772
1956	1,106
1957	359
1958	448
1959	764
1960	737
1961	588
1962	615
1963	704
1964	312
1965	360
1966	707
1967	948
1968	426
1969	429
1970	1,075
1971	444
1972	562
1973	841
1974	589
1975	286
1976	673
1977	545
1978	1,202
1979	612
1980	507
1981	1,265
1982	508
1983	1,423
1984	640
1985	789
1986	512
1987	1,098
1988	1,058
1989	949
1990	922
1991	633
1992	1,201
1993	1,101
1994	1,210
1995	1,365
1996	1,439
1997	804
1998	951
1999	932
2000	809
2001	1,106
2002	1,221
2003	964
2004	887
2005	1,320
2006	734
2007	857
2008	979
2009	679
2010	1,151
2011	716
2012	796
2013	976
2014	941
2015	550
2016	844
2017	1,163
2018	519
2019	788
2020	1,099
2021	834
2022	319
2023	912
2024	458
2025	430
2026	623

Download the Data

Data for records on 1945-05-01: 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	249
20 to 40	15
40 to 60	6
60 to 80	0
80 to 100	1