Weather Records on 1 May 2014

941 weather records were set or tied worldwide on 1 May 2014. Highest significance: Conowingo Dam, US.

Key Facts for 1 May 2014

On 1 May 2014, 941 weather records were set or tied at long-record stations worldwide.
382 were record highs and 288 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 52 monthly and 889 daily.
Conowingo Dam set a monthly record daily precipitation of 144.8 mm (5.7 in) on 1 May 2014.
Across 165 earlier years (1795 to 2026) the same calendar date averaged 439 records.

Record Map

941 stations

941 station records on 1 May 2014 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 1 May 2014: highest significance records shown on the map
Station	Country	Type	Value	Significance
Conowingo Dam	United States	Record daily precipitation	144.8 mm (5.7 in)	77 of 100 (Major)
Aberdeen Phillips Fld	United States	Record daily precipitation	151.6 mm (6.0 in)	77 of 100 (Major)
Flemington 5 NNW	United States	Record daily precipitation	94.7 mm (3.7 in)	70 of 100 (Major)
W Chester 2 NW	United States	Record daily precipitation	106.7 mm (4.2 in)	70 of 100 (Major)
Sussex 1 NW	United States	Record daily precipitation	62.7 mm (2.5 in)	69 of 100 (Major)
Canoe Brook	United States	Record daily precipitation	102.1 mm (4.0 in)	68 of 100 (Major)
Lehighton 1SSW	United States	Record daily precipitation	79.2 mm (3.1 in)	68 of 100 (Major)
Hammonton 1 NE	United States	Record daily precipitation	61.2 mm (2.4 in)	66 of 100 (Major)
Burlington	United States	Record daily precipitation	73.9 mm (2.9 in)	65 of 100 (Major)
Hightstown 2 W	United States	Record daily precipitation	103.9 mm (4.1 in)	62 of 100 (Major)
Glenmoore	United States	Record daily precipitation	123.4 mm (4.9 in)	62 of 100 (Major)
Morgantown	United States	Record daily precipitation	85.3 mm (3.4 in)	62 of 100 (Major)
Mount Hart Station	Australia	Record daily precipitation	40.0 mm (1.6 in)	61 of 100 (Major)
Bakersville	United States	Record daily precipitation	71.1 mm (2.8 in)	61 of 100 (Major)
Ouesso	Congo (Brazzaville)	Record low minimum temperature	14.6 C (58.3 F)	60 of 100 (Major)
Hamburg	United States	Record daily precipitation	69.6 mm (2.7 in)	60 of 100 (Major)
Long Branch-Oakhurst	United States	Record daily precipitation	92.2 mm (3.6 in)	59 of 100 (Notable)
Vienna	United States	Record daily precipitation	82.0 mm (3.2 in)	59 of 100 (Notable)
Buckingham	United States	Record daily precipitation	52.3 mm (2.1 in)	58 of 100 (Notable)
Barkhamsted	United States	Record daily precipitation	64.0 mm (2.5 in)	57 of 100 (Notable)
Dippoldiswalde-Reinberg	Germany	Record daily precipitation	31.2 mm (1.2 in)	56 of 100 (Notable)
Dalecarlia Rsvr	United States	Record daily precipitation	71.4 mm (2.8 in)	56 of 100 (Notable)
Angelica	United States	Record daily precipitation	35.1 mm (1.4 in)	56 of 100 (Notable)
Mt Morris 2W	United States	Record daily precipitation	27.2 mm (1.1 in)	56 of 100 (Notable)
Lahs	Tajikistan	Record daily precipitation	37.1 mm (1.5 in)	55 of 100 (Notable)
Avon	United States	Record daily precipitation	35.6 mm (1.4 in)	55 of 100 (Notable)
New Brunswick 3 SE	United States	Record daily precipitation	114.3 mm (4.5 in)	54 of 100 (Notable)
Dansville	United States	Record daily precipitation	45.7 mm (1.8 in)	54 of 100 (Notable)
Port Jervis	United States	Record daily precipitation	50.8 mm (2.0 in)	54 of 100 (Notable)
Wanaque Raymond Dam	United States	Record daily precipitation	67.6 mm (2.7 in)	53 of 100 (Notable)
WFO Sterling	United States	Record daily precipitation	65.3 mm (2.6 in)	53 of 100 (Notable)
Shuttle Meadow Rsvr	United States	Record daily precipitation	72.4 mm (2.9 in)	52 of 100 (Notable)
Freehold-Marlboro	United States	Record daily precipitation	102.4 mm (4.0 in)	52 of 100 (Notable)
Clearwater	United States	Record high maximum temperature	30.6 C (87.1 F)	52 of 100 (Notable)
Norfolk 2 SW	United States	Record daily precipitation	45.2 mm (1.8 in)	51 of 100 (Notable)
Beltsville	United States	Record daily precipitation	73.9 mm (2.9 in)	51 of 100 (Notable)
Pottersville 2 NNW	United States	Record daily precipitation	91.9 mm (3.6 in)	51 of 100 (Notable)
Franklinville	United States	Record daily precipitation	32.0 mm (1.3 in)	51 of 100 (Notable)
Wichita Falls Muni AP	United States	Record low minimum temperature	1.7 C (35.1 F)	51 of 100 (Notable)
Blackwells Mills	United States	Record daily precipitation	92.5 mm (3.6 in)	50 of 100 (Notable)
Brighton Dam	United States	Record daily precipitation	109.2 mm (4.3 in)	49 of 100 (Notable)
Walden 1 ESE	United States	Record daily precipitation	59.9 mm (2.4 in)	49 of 100 (Notable)
Marianna 2 S	United States	Record low maximum temperature	14.4 C (57.9 F)	48 of 100 (Notable)
Santa Barbara	United States	Record high maximum temperature	34.4 C (93.9 F)	48 of 100 (Notable)
Stamford 5 N	United States	Record daily precipitation	71.1 mm (2.8 in)	48 of 100 (Notable)
Bucksville	United States	Record daily precipitation	80.5 mm (3.2 in)	48 of 100 (Notable)
Morrilton	United States	Record low minimum temperature	1.1 C (34.0 F)	47 of 100 (Notable)
Gouverneur 3 NW	United States	Record daily precipitation	47.8 mm (1.9 in)	47 of 100 (Notable)
Blue Marsh Lake	United States	Record daily precipitation	67.1 mm (2.6 in)	47 of 100 (Notable)
Utsunomiya	Japan	Record daily precipitation	56.9 mm (2.2 in)	46 of 100 (Notable)
Storrs	United States	Record daily precipitation	52.6 mm (2.1 in)	46 of 100 (Notable)
Indian Mills 2 W	United States	Record daily precipitation	52.6 mm (2.1 in)	46 of 100 (Notable)
Newton	United States	Record low maximum temperature	5.0 C (41.0 F)	45 of 100 (Notable)
Yorktown Hts 1W	United States	Record daily precipitation	62.0 mm (2.4 in)	45 of 100 (Notable)
Piedmont Rsch STN	United States	Record daily precipitation	57.9 mm (2.3 in)	45 of 100 (Notable)
Canton 4 SE	United States	Record daily precipitation	40.6 mm (1.6 in)	45 of 100 (Notable)
Essen-Bredeney	Germany	Record daily precipitation	28.9 mm (1.1 in)	44 of 100 (Notable)
E Brimfield Lake	United States	Record daily precipitation	51.8 mm (2.0 in)	44 of 100 (Notable)
Monroe City	United States	Record low maximum temperature	11.7 C (53.1 F)	44 of 100 (Notable)
Rosendale 2 E	United States	Record daily precipitation	52.3 mm (2.1 in)	44 of 100 (Notable)

Counts by Type and Timescale

941 records

Records set or tied on 1 May 2014 by type: Highest daily maximum 183, Lowest daily maximum 170, Highest daily minimum 199, Lowest daily minimum 118, Heaviest daily rainfall 266, Deepest snow cover 5.

Records on 1 May 2014 by type
Record type	Records
Highest daily maximum	183
Lowest daily maximum	170
Highest daily minimum	199
Lowest daily minimum	118
Heaviest daily rainfall	266
Heaviest daily snowfall	0
Deepest snow cover	5

Records on 1 May 2014 by timescale: all-time 0, monthly 52, daily 889.

How Much Records Were Beaten By

750 broken records

Margins by which the 750 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 2014

Top 20 records on 1 May 2014 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 May 2014	Conowingo Dam, US	monthly rain	144.8 mm (5.7 in)	75.5 mm (3.0 in)	67 years	77 of 100 (Major)
1 May 2014	Aberdeen Phillips Fld, US	monthly rain	151.6 mm (6.0 in)	81.0 mm (3.2 in)	61 years	77 of 100 (Major)
1 May 2014	Flemington 5 NNW, US	daily rain	94.7 mm (3.7 in)	45.4 mm (1.8 in)	67 years	70 of 100 (Major)
1 May 2014	W Chester 2 NW, US	daily rain	106.7 mm (4.2 in)	67.6 mm (2.7 in)	67 years	70 of 100 (Major)
1 May 2014	Sussex 1 NW, US	daily rain	62.7 mm (2.5 in)	39.8 mm (1.6 in)	67 years	69 of 100 (Major)
1 May 2014	Canoe Brook, US	daily rain	102.1 mm (4.0 in)	59.9 mm (2.4 in)	67 years	68 of 100 (Major)
1 May 2014	Lehighton 1SSW, US	daily rain	79.2 mm (3.1 in)	48.5 mm (1.9 in)	67 years	68 of 100 (Major)
1 May 2014	Hammonton 1 NE, US	daily rain	61.2 mm (2.4 in)	32.5 mm (1.3 in)	96 years	66 of 100 (Major)
1 May 2014	Burlington, US	daily rain	73.9 mm (2.9 in)	47.0 mm (1.9 in)	60 years	65 of 100 (Major)
1 May 2014	Hightstown 2 W, US	monthly rain	103.9 mm (4.1 in)	16.5 mm (0.6 in)	95 years	62 of 100 (Major)
1 May 2014	Glenmoore, US	monthly rain	123.4 mm (4.9 in)	48.2 mm (1.9 in)	23 years	62 of 100 (Major)
1 May 2014	Morgantown, US	monthly rain	85.3 mm (3.4 in)	33.7 mm (1.3 in)	35 years	62 of 100 (Major)
1 May 2014	Mount Hart Station, AU	daily rain	40.0 mm (1.6 in)	38.5 mm (1.5 in)	85 years	61 of 100 (Major)
1 May 2014	Bakersville, US	daily rain	71.1 mm (2.8 in)	41.6 mm (1.6 in)	60 years	61 of 100 (Major)
1 May 2014	Ouesso, CG	monthly low min	14.6 C (58.3 F)	3.2 C (5.8 F)	48 years	60 of 100 (Major)
1 May 2014	Hamburg, US	daily rain	69.6 mm (2.7 in)	25.1 mm (1.0 in)	103 years	60 of 100 (Major)
1 May 2014	Long Branch-Oakhurst, US	monthly rain	92.2 mm (3.6 in)	10.7 mm (0.4 in)	101 years	59 of 100 (Notable)
1 May 2014	Vienna, US	daily rain	82.0 mm (3.2 in)	36.0 mm (1.4 in)	67 years	59 of 100 (Notable)
1 May 2014	Buckingham, US	daily rain	52.3 mm (2.1 in)	23.6 mm (0.9 in)	118 years	58 of 100 (Notable)
1 May 2014	Barkhamsted, US	daily rain	64.0 mm (2.5 in)	35.6 mm (1.4 in)	60 years	57 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 2014

Records set or tied on this calendar date in each year from 1795 to 2014. 2014 had 941 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 2014-05-01: 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 20	691
20 to 40	38
40 to 60	15
60 to 80	5
80 to 100	1