Weather Records on 1 May 2015

550 weather records were set or tied worldwide on 1 May 2015. Highest significance: Linkoeping-Malmslaett, SE.

Key Facts for 1 May 2015

On 1 May 2015, 550 weather records were set or tied at long-record stations worldwide.
231 were record highs and 97 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 20 monthly and 530 daily.
Linkoeping-Malmslaett set a daily record precipitation of 35.9 mm (1.4 in) on 1 May 2015.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 442 records.

Record Map

550 stations

550 station records on 1 May 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 May 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Linkoeping-Malmslaett	Sweden	Record daily precipitation	35.9 mm (1.4 in)	69 of 100 (Major)
Holmbo_D	Sweden	Record daily precipitation	35.0 mm (1.4 in)	66 of 100 (Major)
Rottweil	Germany	Record daily precipitation	40.2 mm (1.6 in)	59 of 100 (Notable)
Tuttlingen	Germany	Record daily precipitation	34.3 mm (1.4 in)	59 of 100 (Notable)
Efremov	Russia	Record daily precipitation	32.0 mm (1.3 in)	59 of 100 (Notable)
Hogemalen	Sweden	Record daily precipitation	32.4 mm (1.3 in)	59 of 100 (Notable)
Ungsberg	Sweden	Record daily precipitation	25.9 mm (1.0 in)	55 of 100 (Notable)
Embrun	France	Record daily precipitation	34.4 mm (1.4 in)	53 of 100 (Notable)
Feldberg/Schwarzwald	Germany	Record daily precipitation	74.9 mm (2.9 in)	53 of 100 (Notable)
Malexander	Sweden	Record daily precipitation	30.9 mm (1.2 in)	52 of 100 (Notable)
Tjallmo	Sweden	Record daily precipitation	28.6 mm (1.1 in)	52 of 100 (Notable)
Regna_D	Sweden	Record daily precipitation	26.0 mm (1.0 in)	52 of 100 (Notable)
Klippeneck	Germany	Record daily precipitation	38.6 mm (1.5 in)	49 of 100 (Notable)
Sigmaringen-Laiz	Germany	Record daily precipitation	44.2 mm (1.7 in)	48 of 100 (Notable)
Brisbane Aero	Australia	Record daily precipitation	129.3 mm (5.1 in)	47 of 100 (Notable)
Wooli Beach	Australia	Record daily precipitation	107.2 mm (4.2 in)	47 of 100 (Notable)
Kreis Biberach Altheim	Germany	Record daily precipitation	44.1 mm (1.7 in)	47 of 100 (Notable)
Motala	Sweden	Record daily precipitation	27.5 mm (1.1 in)	47 of 100 (Notable)
Wutoschingen-Ofteringen	Germany	Record daily precipitation	40.1 mm (1.6 in)	45 of 100 (Notable)
Exmouth Town	Australia	Record daily precipitation	84.0 mm (3.3 in)	44 of 100 (Notable)
Rosalie Plains	Australia	Record daily precipitation	80.0 mm (3.1 in)	44 of 100 (Notable)
Kenilworth	Australia	Record daily precipitation	37.2 mm (1.5 in)	44 of 100 (Notable)
Mount Phillip	Australia	Record daily precipitation	38.0 mm (1.5 in)	43 of 100 (Notable)
Stanthorpe Leslie Parade	Australia	Record daily precipitation	52.8 mm (2.1 in)	43 of 100 (Notable)
Meerschaumvale (Meerschaum Val	Australia	Record daily precipitation	238.0 mm (9.4 in)	43 of 100 (Notable)
Kisa_D	Sweden	Record daily precipitation	29.5 mm (1.2 in)	43 of 100 (Notable)
Ft Valley	United States	Record high minimum temperature	6.7 C (44.1 F)	43 of 100 (Notable)
Jingi Jingi	Australia	Record daily precipitation	62.6 mm (2.5 in)	42 of 100 (Notable)
Weilmoringle (Caringle)	Australia	Record daily precipitation	63.0 mm (2.5 in)	40 of 100 (Notable)
Godegard	Sweden	Record daily precipitation	28.3 mm (1.1 in)	40 of 100 (Notable)
Greenville	United States	Record low maximum temperature	13.9 C (57.0 F)	40 of 100 (Notable)
Desert Resorts Rgnl AP	United States	Record high minimum temperature	27.8 C (82.0 F)	40 of 100 (Notable)
Ramsjoholm	Sweden	Record daily precipitation	26.0 mm (1.0 in)	39 of 100 (Notable)
Zinkgruvan	Sweden	Record daily precipitation	25.0 mm (1.0 in)	39 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record daily precipitation	41.6 mm (1.6 in)	38 of 100 (Notable)
Orrefors_D	Sweden	Record daily precipitation	25.0 mm (1.0 in)	37 of 100 (Notable)
Gaoua	Burkina Faso	Record high maximum temperature	40.1 C (104.2 F)	37 of 100 (Notable)
Glenroy	Australia	Record daily precipitation	62.6 mm (2.5 in)	36 of 100 (Notable)
Kuyura	Australia	Record daily precipitation	60.4 mm (2.4 in)	36 of 100 (Notable)
Bikin	Russia	Record high minimum temperature	15.7 C (60.3 F)	36 of 100 (Notable)
Lajes Ab	Portugal	Record daily precipitation	30.0 mm (1.2 in)	35 of 100 (Notable)
Ternej	Russia	Record high minimum temperature	9.6 C (49.3 F)	35 of 100 (Notable)
Barcelona/Aeropuerto	Spain	Record high minimum temperature	15.2 C (59.4 F)	35 of 100 (Notable)
Ulrika	Sweden	Record daily precipitation	32.7 mm (1.3 in)	35 of 100 (Notable)
Odeshog	Sweden	Record daily precipitation	25.3 mm (1.0 in)	35 of 100 (Notable)
Palisade	United States	Record high minimum temperature	13.9 C (57.0 F)	35 of 100 (Notable)
Marnhull	Australia	Record daily precipitation	54.2 mm (2.1 in)	34 of 100 (Routine)
Bintulu	Malaysia	Record low maximum temperature	26.3 C (79.3 F)	34 of 100 (Routine)
Ft Valley	United States	Record high maximum temperature	26.1 C (79.0 F)	34 of 100 (Routine)
Bowman Dam	United States	Record high minimum temperature	11.1 C (52.0 F)	34 of 100 (Routine)
Napa State Hospital	United States	Record high maximum temperature	36.1 C (97.0 F)	34 of 100 (Routine)
Pfullendorf	Germany	Record daily precipitation	45.8 mm (1.8 in)	33 of 100 (Routine)
Jordalen - Nasen	Norway	Record snow depth	210.0 cm (82.7 in)	33 of 100 (Routine)
Dunollie	Australia	Record daily precipitation	70.2 mm (2.8 in)	32 of 100 (Routine)
Mt Stanley Station	Australia	Record daily precipitation	56.0 mm (2.2 in)	32 of 100 (Routine)
Bell Store	Australia	Record daily precipitation	47.0 mm (1.9 in)	32 of 100 (Routine)
Anyang	China	Record daily precipitation	35.3 mm (1.4 in)	32 of 100 (Routine)
Calaveras Big Trees	United States	Record high minimum temperature	10.0 C (50.0 F)	32 of 100 (Routine)
Palmdale AP	United States	Record high minimum temperature	15.6 C (60.1 F)	32 of 100 (Routine)
Hereward	Australia	Record daily precipitation	58.8 mm (2.3 in)	31 of 100 (Routine)

Counts by Type and Timescale

550 records

Records set or tied on 1 May 2015 by type: Highest daily maximum 106, Lowest daily maximum 45, Highest daily minimum 125, Lowest daily minimum 52, Heaviest daily rainfall 219, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 1 May 2015 by type
Record type	Records
Highest daily maximum	106
Lowest daily maximum	45
Highest daily minimum	125
Lowest daily minimum	52
Heaviest daily rainfall	219
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 1 May 2015 by timescale: all-time 0, monthly 20, daily 530.

How Much Records Were Beaten By

460 broken records

Margins by which the 460 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 400.0. Ties are not counted.

Top 20 by Significance

1 May 2015

Top 20 records on 1 May 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 2015	Linkoeping-Malmslaett, SE	daily rain	35.9 mm (1.4 in)	20.5 mm (0.8 in)	64 years	69 of 100 (Major)
1 May 2015	Holmbo_D, SE	daily rain	35.0 mm (1.4 in)	20.1 mm (0.8 in)	66 years	66 of 100 (Major)
1 May 2015	Rottweil, DE	daily rain	40.2 mm (1.6 in)	25.4 mm (1.0 in)	44 years	59 of 100 (Notable)
1 May 2015	Tuttlingen, DE	daily rain	34.3 mm (1.4 in)	12.9 mm (0.5 in)	124 years	59 of 100 (Notable)
1 May 2015	Efremov, RU	daily rain	32.0 mm (1.3 in)	23.0 mm (0.9 in)	48 years	59 of 100 (Notable)
1 May 2015	Hogemalen, SE	daily rain	32.4 mm (1.3 in)	18.6 mm (0.7 in)	41 years	59 of 100 (Notable)
1 May 2015	Ungsberg, SE	daily rain	25.9 mm (1.0 in)	17.2 mm (0.7 in)	41 years	55 of 100 (Notable)
1 May 2015	Embrun, FR	daily rain	34.4 mm (1.4 in)	19.1 mm (0.8 in)	52 years	53 of 100 (Notable)
1 May 2015	Feldberg/Schwarzwald, DE	daily rain	74.9 mm (2.9 in)	53.9 mm (2.1 in)	16 years	53 of 100 (Notable)
1 May 2015	Malexander, SE	daily rain	30.9 mm (1.2 in)	16.9 mm (0.7 in)	24 years	52 of 100 (Notable)
1 May 2015	Tjallmo, SE	daily rain	28.6 mm (1.1 in)	16.2 mm (0.6 in)	41 years	52 of 100 (Notable)
1 May 2015	Regna_D, SE	daily rain	26.0 mm (1.0 in)	15.8 mm (0.6 in)	41 years	52 of 100 (Notable)
1 May 2015	Klippeneck, DE	daily rain	38.6 mm (1.5 in)	19.7 mm (0.8 in)	56 years	49 of 100 (Notable)
1 May 2015	Sigmaringen-Laiz, DE	daily rain	44.2 mm (1.7 in)	22.8 mm (0.9 in)	16 years	48 of 100 (Notable)
1 May 2015	Brisbane Aero, AU	daily rain	129.3 mm (5.1 in)	42.7 mm (1.7 in)	58 years	47 of 100 (Notable)
1 May 2015	Wooli Beach, AU	daily rain	107.2 mm (4.2 in)	94.2 mm (3.7 in)	8 years	47 of 100 (Notable)
1 May 2015	Kreis Biberach Altheim, DE	daily rain	44.1 mm (1.7 in)	30.5 mm (1.2 in)	4 years	47 of 100 (Notable)
1 May 2015	Motala, SE	daily rain	27.5 mm (1.1 in)	9.9 mm (0.39 in)	64 years	47 of 100 (Notable)
1 May 2015	Wutoschingen-Ofteringen, DE	daily rain	40.1 mm (1.6 in)	26.8 mm (1.1 in)	4 years	45 of 100 (Notable)
1 May 2015	Exmouth Town, AU	daily rain	84.0 mm (3.3 in)	77.2 mm (3.0 in)	24 years	44 of 100 (Notable)

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 2015

Records set or tied on this calendar date in each year from 1795 to 2015. 2015 had 550 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 2015-05-01: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 50	455
50 to 100	4
100 to 150	0
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	0
350 to 400	1