Weather Records on 8 May 2015

647 weather records were set or tied worldwide on 8 May 2015. Highest significance: Sidney 6NNW, US.

Key Facts for 8 May 2015

On 8 May 2015, 647 weather records were set or tied at long-record stations worldwide.
319 were record highs and 102 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 639 daily.
Sidney 6NNW set a daily record precipitation of 53.3 mm (2.1 in) on 8 May 2015.
Across 163 earlier years (1795 to 2026) the same calendar date averaged 429 records.

Record Map

647 stations

647 station records on 8 May 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 8 May 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sidney 6NNW	United States	Record daily precipitation	53.3 mm (2.1 in)	68 of 100 (Major)
Cheyenne	United States	Record daily precipitation	39.6 mm (1.6 in)	62 of 100 (Major)
Palomar Mtn Obsy	United States	Record daily precipitation	41.9 mm (1.6 in)	54 of 100 (Notable)
Overbrook 5 SE	United States	Record daily precipitation	85.9 mm (3.4 in)	54 of 100 (Notable)
Lebo	United States	Record daily precipitation	65.8 mm (2.6 in)	53 of 100 (Notable)
Virginia Lakes Ridge	United States	Record daily precipitation	35.6 mm (1.4 in)	53 of 100 (Notable)
Palomar Mtn Obsy	United States	Record daily snowfall	5.1 cm (2.0 in)	50 of 100 (Notable)
Kit Carson	United States	Record daily precipitation	40.9 mm (1.6 in)	50 of 100 (Notable)
Dyer 5S	United States	Record daily snowfall	5.1 cm (2.0 in)	50 of 100 (Notable)
Julian Cdf	United States	Record daily precipitation	25.7 mm (1.0 in)	48 of 100 (Notable)
Ash Mtn	United States	Record daily precipitation	25.9 mm (1.0 in)	47 of 100 (Notable)
Bridgeport	United States	Record daily precipitation	28.7 mm (1.1 in)	47 of 100 (Notable)
Meeker	United States	Record low minimum temperature	-8.9 C (16.0 F)	47 of 100 (Notable)
Northfield	United States	Record daily precipitation	76.5 mm (3.0 in)	47 of 100 (Notable)
Plaisance (Mauritiu	Mauritius	Record daily precipitation	55.1 mm (2.2 in)	46 of 100 (Notable)
Bradford	United Kingdom	Record daily precipitation	30.8 mm (1.2 in)	46 of 100 (Notable)
Altus Dam	United States	Record daily precipitation	86.4 mm (3.4 in)	46 of 100 (Notable)
Antlers	United States	Record daily precipitation	82.6 mm (3.3 in)	46 of 100 (Notable)
Teriberka	Russia	Record high minimum temperature	5.6 C (42.1 F)	44 of 100 (Notable)
Pomona Lake	United States	Record daily precipitation	70.1 mm (2.8 in)	43 of 100 (Notable)
Vajda-Guba	Russia	Record high minimum temperature	7.2 C (45.0 F)	41 of 100 (Notable)
Borgvattnet	Sweden	Record daily precipitation	29.0 mm (1.1 in)	41 of 100 (Notable)
Bodie California St Historic P	United States	Record daily snowfall	30.5 cm (12.0 in)	41 of 100 (Notable)
Atoka	United States	Record daily precipitation	37.3 mm (1.5 in)	41 of 100 (Notable)
Gulkana AP	United States	Record high minimum temperature	5.0 C (41.0 F)	41 of 100 (Notable)
Ostrov Sosnovez	Russia	Record high minimum temperature	2.9 C (37.2 F)	40 of 100 (Notable)
Appleton City	United States	Record daily precipitation	61.5 mm (2.4 in)	40 of 100 (Notable)
Gladwin	United States	Record high maximum temperature	31.1 C (88.0 F)	39 of 100 (Notable)
Ladysmith 3W	United States	Record daily precipitation	25.4 mm (1.0 in)	38 of 100 (Notable)
McAlester Rgnl AP	United States	Record daily precipitation	47.5 mm (1.9 in)	38 of 100 (Notable)
Big Bear Lake	United States	Record daily snowfall	8.4 cm (3.3 in)	37 of 100 (Notable)
Elgin Water	United States	Record high maximum temperature	28.9 C (84.0 F)	37 of 100 (Notable)
Toluca (Obs)	Mexico	Record daily precipitation	33.3 mm (1.3 in)	36 of 100 (Notable)
Preston: Moor Park	United Kingdom	Record daily precipitation	27.0 mm (1.1 in)	36 of 100 (Notable)
Bodie California St Historic P	United States	Record daily precipitation	42.4 mm (1.7 in)	36 of 100 (Notable)
Hetch Hetchy	United States	Record low maximum temperature	6.1 C (43.0 F)	36 of 100 (Notable)
So Entrance Yosemite Np	United States	Record snow depth	10.2 cm (4.0 in)	36 of 100 (Notable)
Wooster Exp STN	United States	Record high maximum temperature	30.6 C (87.1 F)	36 of 100 (Notable)
Zhizhgin Mayak	Russia	Record high maximum temperature	17.5 C (63.5 F)	35 of 100 (Notable)
John Martin Dam	United States	Record daily precipitation	26.7 mm (1.1 in)	35 of 100 (Notable)
Brookville	United States	Record high maximum temperature	32.8 C (91.0 F)	35 of 100 (Notable)
Mansfield 5 W	United States	Record high maximum temperature	31.1 C (88.0 F)	35 of 100 (Notable)
Floydada	United States	Record daily precipitation	76.2 mm (3.0 in)	35 of 100 (Notable)
Parsons 3 SE	United States	Record high maximum temperature	33.3 C (91.9 F)	35 of 100 (Notable)
Wittmann 1SE	United States	Record low maximum temperature	21.7 C (71.1 F)	34 of 100 (Routine)
E Jordan	United States	Record high maximum temperature	30.6 C (87.1 F)	34 of 100 (Routine)
Hobart Muni AP	United States	Record daily precipitation	93.5 mm (3.7 in)	34 of 100 (Routine)
Svyatoy Nos;Cape(Closed)	Russia	Record high maximum temperature	12.1 C (53.8 F)	33 of 100 (Routine)
Lamar	United States	Record daily precipitation	25.4 mm (1.0 in)	33 of 100 (Routine)
Angelica	United States	Record high maximum temperature	31.7 C (89.1 F)	33 of 100 (Routine)
Muenster	United States	Record daily precipitation	83.8 mm (3.3 in)	33 of 100 (Routine)
Plainview	United States	Record daily precipitation	41.7 mm (1.6 in)	33 of 100 (Routine)
Wichita Falls Muni AP	United States	Record daily precipitation	36.3 mm (1.4 in)	33 of 100 (Routine)
La Junta Muni AP	United States	Record daily precipitation	33.0 mm (1.3 in)	33 of 100 (Routine)
Poway Valley	United States	Record daily precipitation	25.7 mm (1.0 in)	32 of 100 (Routine)
Wallace	United States	Record daily precipitation	32.0 mm (1.3 in)	32 of 100 (Routine)
Batavia	United States	Record high maximum temperature	31.1 C (88.0 F)	32 of 100 (Routine)
Cedar Falls Hydro Plt	United States	Record daily precipitation	37.1 mm (1.5 in)	32 of 100 (Routine)
Youngstown-Warren Rgnl AP	United States	Record high maximum temperature	31.7 C (89.1 F)	32 of 100 (Routine)
Bishkek	Kyrgyzstan	Record high minimum temperature	18.2 C (64.8 F)	31 of 100 (Routine)

Counts by Type and Timescale

647 records

Records set or tied on 8 May 2015 by type: Highest daily maximum 195, Lowest daily maximum 71, Highest daily minimum 124, Lowest daily minimum 31, Heaviest daily rainfall 212, Heaviest daily snowfall 8, Deepest snow cover 6.

Records on 8 May 2015 by type
Record type	Records
Highest daily maximum	195
Lowest daily maximum	71
Highest daily minimum	124
Lowest daily minimum	31
Heaviest daily rainfall	212
Heaviest daily snowfall	8
Deepest snow cover	6

Records on 8 May 2015 by timescale: all-time 0, monthly 8, daily 639.

How Much Records Were Beaten By

531 broken records

Margins by which the 531 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 170.0. Ties are not counted.

Top 20 by Significance

8 May 2015

Top 20 records on 8 May 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
8 May 2015	Sidney 6NNW, US	daily rain	53.3 mm (2.1 in)	34.2 mm (1.3 in)	65 years	68 of 100 (Major)
8 May 2015	Cheyenne, US	daily rain	39.6 mm (1.6 in)	17.2 mm (0.7 in)	88 years	62 of 100 (Major)
8 May 2015	Palomar Mtn Obsy, US	daily rain	41.9 mm (1.6 in)	39.4 mm (1.6 in)	38 years	54 of 100 (Notable)
8 May 2015	Overbrook 5 SE, US	daily rain	85.9 mm (3.4 in)	35.6 mm (1.4 in)	74 years	54 of 100 (Notable)
8 May 2015	Lebo, US	daily rain	65.8 mm (2.6 in)	24.7 mm (1.0 in)	93 years	53 of 100 (Notable)
8 May 2015	Virginia Lakes Ridge, US	daily rain	35.6 mm (1.4 in)	28.0 mm (1.1 in)	36 years	53 of 100 (Notable)
8 May 2015	Palomar Mtn Obsy, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	113 years	50 of 100 (Notable)
8 May 2015	Kit Carson, US	daily rain	40.9 mm (1.6 in)	26.4 mm (1.0 in)	56 years	50 of 100 (Notable)
8 May 2015	Dyer 5S, US	daily snowfall	5.1 cm (2.0 in)	5.1 cm (2.0 in)	112 years	50 of 100 (Notable)
8 May 2015	Julian Cdf, US	daily rain	25.7 mm (1.0 in)	15.8 mm (0.6 in)	88 years	48 of 100 (Notable)
8 May 2015	Ash Mtn, US	daily rain	25.9 mm (1.0 in)	13.5 mm (0.5 in)	81 years	47 of 100 (Notable)
8 May 2015	Bridgeport, US	daily rain	28.7 mm (1.1 in)	15.0 mm (0.6 in)	22 years	47 of 100 (Notable)
8 May 2015	Meeker, US	daily low min	-8.9 C (16.0 F)	2.8 C (5.0 F)	110 years	47 of 100 (Notable)
8 May 2015	Northfield, US	daily rain	76.5 mm (3.0 in)	33.3 mm (1.3 in)	57 years	47 of 100 (Notable)
8 May 2015	Plaisance (Mauritiu, MU	daily rain	55.1 mm (2.2 in)	30.7 mm (1.2 in)	61 years	46 of 100 (Notable)
8 May 2015	Bradford, GB	daily rain	30.8 mm (1.2 in)	9.4 mm (0.37 in)	62 years	46 of 100 (Notable)
8 May 2015	Altus Dam, US	daily rain	86.4 mm (3.4 in)	61.0 mm (2.4 in)	21 years	46 of 100 (Notable)
8 May 2015	Antlers, US	daily rain	82.6 mm (3.3 in)	21.6 mm (0.9 in)	92 years	46 of 100 (Notable)
8 May 2015	Teriberka, RU	daily high min	5.6 C (42.1 F)	1.6 C (2.9 F)	119 years	44 of 100 (Notable)
8 May 2015	Pomona Lake, US	daily rain	70.1 mm (2.8 in)	49.0 mm (1.9 in)	18 years	43 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 647 records.

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

Records on 05-08 in each year
Year	Records
1795	2
1806	1
1825	1
1834	1
1845	2
1848	1
1849	1
1851	1
1852	1
1857	1
1858	2
1861	2
1862	1
1863	1
1865	1
1867	4
1868	1
1873	1
1874	3
1876	3
1879	1
1880	1
1882	4
1883	1
1885	1
1886	3
1888	2
1889	1
1890	2
1891	2
1892	2
1893	3
1894	1
1895	1
1896	3
1897	5
1898	2
1900	10
1901	5
1902	5
1903	11
1904	13
1905	17
1906	27
1907	7
1908	14
1909	19
1910	26
1911	34
1912	36
1913	34
1914	71
1915	35
1916	17
1917	108
1918	47
1919	132
1920	62
1921	35
1922	38
1923	510
1924	196
1925	272
1926	191
1927	328
1928	310
1929	194
1930	572
1931	403
1932	283
1933	553
1934	728
1935	78
1936	650
1937	107
1938	425
1939	235
1940	296
1941	271
1942	128
1943	465
1944	258
1945	646
1946	271
1947	1,152
1948	453
1949	361
1950	748
1951	274
1952	794
1953	580
1954	463
1955	411
1956	490
1957	546
1958	440
1959	252
1960	748
1961	556
1962	450
1963	1,105
1964	731
1965	704
1966	522
1967	573
1968	424
1969	542
1970	501
1971	413
1972	509
1973	527
1974	777
1975	555
1976	989
1977	682
1978	676
1979	1,113
1980	722
1981	613
1982	557
1983	638
1984	1,072
1985	591
1986	1,210
1987	1,226
1988	632
1989	1,543
1990	715
1991	710
1992	1,740
1993	892
1994	768
1995	1,340
1996	908
1997	973
1998	1,348
1999	985
2000	1,782
2001	851
2002	1,843
2003	1,420
2004	1,133
2005	685
2006	801
2007	718
2008	595
2009	779
2010	1,079
2011	602
2012	709
2013	686
2014	958
2015	647
2016	752
2017	467
2018	711
2019	723
2020	599
2021	419
2022	908
2023	579
2024	1,015
2025	380
2026	292

Download the Data

Data for records on 2015-05-08: 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 25	509
25 to 50	12
50 to 75	4
75 to 100	3
100 to 125	2
125 to 150	0
150 to 175	1