Weather Records on 15 May 2015

717 weather records were set or tied worldwide on 15 May 2015. Highest significance: Cody, US.

Key Facts for 15 May 2015

On 15 May 2015, 717 weather records were set or tied at long-record stations worldwide.
225 were record highs and 175 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 27 monthly and 690 daily.
Cody set a daily record precipitation of 39.6 mm (1.6 in) on 15 May 2015.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 429 records.

Record Map

717 stations

717 station records on 15 May 2015 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 2015: highest significance records shown on the map
Station	Country	Type	Value	Significance
Cody	United States	Record daily precipitation	39.6 mm (1.6 in)	75 of 100 (Major)
La Pryor	United States	Record daily precipitation	159.5 mm (6.3 in)	66 of 100 (Major)
San Diego Miramar NAS	United States	Record daily precipitation	26.4 mm (1.0 in)	64 of 100 (Major)
Nizhyn	Ukraine	Record daily precipitation	40.9 mm (1.6 in)	61 of 100 (Major)
Tanegashima	Japan	Record daily precipitation	193.0 mm (7.6 in)	60 of 100 (Major)
Cuthbert	United States	Record daily precipitation	101.6 mm (4.0 in)	60 of 100 (Major)
Campo	United States	Record daily precipitation	39.6 mm (1.6 in)	59 of 100 (Notable)
Julian Cdf	United States	Record daily precipitation	35.8 mm (1.4 in)	58 of 100 (Notable)
Palomar Mtn Obsy	United States	Record daily precipitation	36.3 mm (1.4 in)	55 of 100 (Notable)
Dongtai	China	Record daily precipitation	63.0 mm (2.5 in)	52 of 100 (Notable)
Imperial	United States	Record low maximum temperature	17.8 C (64.0 F)	51 of 100 (Notable)
Indio Fire STN	United States	Record low maximum temperature	17.2 C (63.0 F)	51 of 100 (Notable)
Altadena	United States	Record daily precipitation	41.7 mm (1.6 in)	50 of 100 (Notable)
Auburn 5 ESE	United States	Record daily precipitation	49.0 mm (1.9 in)	48 of 100 (Notable)
Fry	United States	Record daily precipitation	45.7 mm (1.8 in)	48 of 100 (Notable)
Chernjaevo	Russia	Record daily precipitation	31.7 mm (1.2 in)	47 of 100 (Notable)
Luling	United States	Record daily precipitation	57.4 mm (2.3 in)	47 of 100 (Notable)
Pahoa 65	United States	Record daily precipitation	118.1 mm (4.6 in)	47 of 100 (Notable)
Gyshgy	Turkmenistan	Record high maximum temperature	40.1 C (104.2 F)	46 of 100 (Notable)
Encinal	United States	Record daily precipitation	121.9 mm (4.8 in)	46 of 100 (Notable)
Brjansk	Russia	Record daily precipitation	36.9 mm (1.5 in)	44 of 100 (Notable)
Idyllwild Fire Dept	United States	Record daily precipitation	31.2 mm (1.2 in)	44 of 100 (Notable)
Col du Grand St-Bernard	Switzerland	Record daily precipitation	79.4 mm (3.1 in)	42 of 100 (Notable)
Forest City 2 NNE	United States	Record daily precipitation	35.1 mm (1.4 in)	42 of 100 (Notable)
Nemours (Ghazaouet)	Algeria	Record high maximum temperature	25.3 C (77.5 F)	41 of 100 (Notable)
Mount Wellington (the Springs)	Australia	Record daily precipitation	106.0 mm (4.2 in)	41 of 100 (Notable)
Rison	United States	Record high minimum temperature	20.6 C (69.1 F)	41 of 100 (Notable)
Tonopah	United States	Record low minimum temperature	-0.6 C (30.9 F)	41 of 100 (Notable)
Hemet	United States	Record daily precipitation	25.4 mm (1.0 in)	40 of 100 (Notable)
Wittmann 1SE	United States	Record low maximum temperature	20.6 C (69.1 F)	39 of 100 (Notable)
Mecca Fire STN	United States	Record low maximum temperature	17.8 C (64.0 F)	39 of 100 (Notable)
Turtle Lake	United States	Record low maximum temperature	9.4 C (48.9 F)	39 of 100 (Notable)
Cotulla la Salle Co AP	United States	Record daily precipitation	58.4 mm (2.3 in)	39 of 100 (Notable)
Grand Junction Walker Fld	United States	Record low maximum temperature	13.9 C (57.0 F)	39 of 100 (Notable)
Oak Creek Canyon	United States	Record daily precipitation	27.7 mm (1.1 in)	38 of 100 (Notable)
Bridgeport	United States	Record daily precipitation	57.2 mm (2.3 in)	38 of 100 (Notable)
Tillamook	United States	Record low maximum temperature	6.7 C (44.1 F)	38 of 100 (Notable)
Indian Canyon	United States	Record daily precipitation	30.5 mm (1.2 in)	38 of 100 (Notable)
Priluky	Ukraine	Record daily precipitation	30.0 mm (1.2 in)	37 of 100 (Notable)
Cascade	United States	Record daily precipitation	25.4 mm (1.0 in)	36 of 100 (Notable)
Slug Creek Divide	United States	Record daily precipitation	25.4 mm (1.0 in)	36 of 100 (Notable)
Promontory	United States	Record daily precipitation	27.9 mm (1.1 in)	36 of 100 (Notable)
Cuyamaca	United States	Record daily precipitation	37.3 mm (1.5 in)	35 of 100 (Notable)
Clarion	United States	Record daily precipitation	25.4 mm (1.0 in)	35 of 100 (Notable)
White Horse Lake	United States	Record daily precipitation	30.5 mm (1.2 in)	35 of 100 (Notable)
Mt. Howard	United States	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Flagstaff AP	United States	Record low maximum temperature	3.9 C (39.0 F)	35 of 100 (Notable)
Fairbanks Intl AP	United States	Record high maximum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Ojai	United States	Record low maximum temperature	15.0 C (59.0 F)	34 of 100 (Routine)
Crockett	United States	Record daily precipitation	53.3 mm (2.1 in)	34 of 100 (Routine)
Ash Mtn	United States	Record daily precipitation	25.4 mm (1.0 in)	33 of 100 (Routine)
Borrego Desert Park	United States	Record low maximum temperature	18.3 C (64.9 F)	33 of 100 (Routine)
Wolf Canyon	United States	Record daily precipitation	29.2 mm (1.1 in)	33 of 100 (Routine)
Desert Resorts Rgnl AP	United States	Record low maximum temperature	17.2 C (63.0 F)	33 of 100 (Routine)
Khudjand	Tajikistan	Record high minimum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Powder River Pass	United States	Record daily precipitation	25.4 mm (1.0 in)	32 of 100 (Routine)
Yuma Proving Ground	United States	Record low maximum temperature	20.6 C (69.1 F)	32 of 100 (Routine)
Kanab	United States	Record low maximum temperature	11.7 C (53.1 F)	31 of 100 (Routine)
Buffalo	United States	Record daily precipitation	28.4 mm (1.1 in)	31 of 100 (Routine)
Gallegos Peak	United States	Record daily precipitation	27.9 mm (1.1 in)	31 of 100 (Routine)

Counts by Type and Timescale

717 records

Records set or tied on 15 May 2015 by type: Highest daily maximum 104, Lowest daily maximum 120, Highest daily minimum 121, Lowest daily minimum 55, Heaviest daily rainfall 304, Heaviest daily snowfall 9, Deepest snow cover 4.

Records on 15 May 2015 by type
Record type	Records
Highest daily maximum	104
Lowest daily maximum	120
Highest daily minimum	121
Lowest daily minimum	55
Heaviest daily rainfall	304
Heaviest daily snowfall	9
Deepest snow cover	4

Records on 15 May 2015 by timescale: all-time 0, monthly 27, daily 690.

How Much Records Were Beaten By

595 broken records

Margins by which the 595 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 350.0. Ties are not counted.

Top 20 by Significance

15 May 2015

Top 20 records on 15 May 2015 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 2015	Cody, US	daily rain	39.6 mm (1.6 in)	22.6 mm (0.9 in)	86 years	75 of 100 (Major)
15 May 2015	La Pryor, US	daily rain	159.5 mm (6.3 in)	113.0 mm (4.4 in)	54 years	66 of 100 (Major)
15 May 2015	San Diego Miramar NAS, US	daily rain	26.4 mm (1.0 in)	23.9 mm (0.9 in)	61 years	64 of 100 (Major)
15 May 2015	Nizhyn, UA	daily rain	40.9 mm (1.6 in)	32.9 mm (1.3 in)	52 years	61 of 100 (Major)
15 May 2015	Tanegashima, JP	daily rain	193.0 mm (7.6 in)	104.5 mm (4.1 in)	56 years	60 of 100 (Major)
15 May 2015	Cuthbert, US	daily rain	101.6 mm (4.0 in)	60.7 mm (2.4 in)	44 years	60 of 100 (Major)
15 May 2015	Campo, US	monthly rain	39.6 mm (1.6 in)	12.9 mm (0.5 in)	58 years	59 of 100 (Notable)
15 May 2015	Julian Cdf, US	daily rain	35.8 mm (1.4 in)	23.6 mm (0.9 in)	120 years	58 of 100 (Notable)
15 May 2015	Palomar Mtn Obsy, US	daily rain	36.3 mm (1.4 in)	32.0 mm (1.3 in)	61 years	55 of 100 (Notable)
15 May 2015	Dongtai, CN	daily rain	63.0 mm (2.5 in)	43.8 mm (1.7 in)	32 years	52 of 100 (Notable)
15 May 2015	Imperial, US	monthly low max	17.8 C (64.0 F)	2.8 C (5.0 F)	85 years	51 of 100 (Notable)
15 May 2015	Indio Fire STN, US	monthly low max	17.2 C (63.0 F)	0.6 C (1.1 F)	100 years	51 of 100 (Notable)
15 May 2015	Altadena, US	daily rain	41.7 mm (1.6 in)	38.7 mm (1.5 in)	4 years	50 of 100 (Notable)
15 May 2015	Auburn 5 ESE, US	daily rain	49.0 mm (1.9 in)	11.7 mm (0.5 in)	118 years	48 of 100 (Notable)
15 May 2015	Fry, US	monthly rain	45.7 mm (1.8 in)	17.8 mm (0.7 in)	6 years	48 of 100 (Notable)
15 May 2015	Chernjaevo, RU	daily rain	31.7 mm (1.2 in)	13.9 mm (0.5 in)	46 years	47 of 100 (Notable)
15 May 2015	Luling, US	daily rain	57.4 mm (2.3 in)	14.7 mm (0.6 in)	105 years	47 of 100 (Notable)
15 May 2015	Pahoa 65, US	daily rain	118.1 mm (4.6 in)	30.0 mm (1.2 in)	54 years	47 of 100 (Notable)
15 May 2015	Gyshgy, TM	daily high max	40.1 C (104.2 F)	3.1 C (5.6 F)	109 years	46 of 100 (Notable)
15 May 2015	Encinal, US	monthly rain	121.9 mm (4.8 in)	13.9 mm (0.5 in)	65 years	46 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

1820 to 2015

Records set or tied on this calendar date in each year from 1820 to 2015. 2015 had 717 records.

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

Records on 05-15 in each year
Year	Records
1820	1
1825	1
1831	1
1832	1
1837	2
1845	1
1847	2
1848	1
1855	2
1857	2
1859	1
1862	1
1863	1
1865	1
1866	2
1867	1
1868	2
1870	1
1871	3
1874	2
1876	4
1878	1
1879	2
1881	1
1883	1
1885	1
1886	2
1888	3
1891	3
1893	5
1894	2
1895	4
1896	2
1897	4
1898	3
1899	9
1900	9
1901	2
1902	9
1903	4
1904	13
1905	16
1906	10
1907	27
1908	25
1909	89
1910	27
1911	27
1912	26
1913	60
1914	16
1915	236
1916	27
1917	80
1918	133
1919	25
1920	58
1921	92
1922	30
1923	125
1924	174
1925	100
1926	161
1927	191
1928	144
1929	161
1930	136
1931	459
1932	368
1933	439
1934	227
1935	288
1936	372
1937	373
1938	393
1939	351
1940	179
1941	454
1942	701
1943	568
1944	630
1945	588
1946	238
1947	334
1948	264
1949	363
1950	260
1951	736
1952	476
1953	426
1954	355
1955	538
1956	466
1957	521
1958	605
1959	764
1960	291
1961	508
1962	1,128
1963	782
1964	347
1965	320
1966	389
1967	609
1968	1,019
1969	790
1970	512
1971	351
1972	484
1973	818
1974	1,230
1975	372
1976	803
1977	1,186
1978	922
1979	404
1980	625
1981	586
1982	500
1983	1,215
1984	1,059
1985	649
1986	679
1987	1,073
1988	643
1989	552
1990	776
1991	1,179
1992	944
1993	784
1994	910
1995	1,750
1996	1,452
1997	1,175
1998	1,641
1999	810
2000	850
2001	1,280
2002	801
2003	1,023
2004	1,046
2005	767
2006	955
2007	949
2008	995
2009	675
2010	1,088
2011	1,298
2012	751
2013	1,081
2014	1,411
2015	717
2016	890
2017	435
2018	1,074
2019	627
2020	472
2021	412
2022	847
2023	566
2024	596
2025	801
2026	481

Download the Data

Data for records on 2015-05-15: 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	590
50 to 100	2
100 to 150	2
150 to 200	0
200 to 250	0
250 to 300	0
300 to 350	1