Weather Records on 15 May 1979

404 weather records were set or tied worldwide on 15 May 1979. Highest significance: Las Burras, MX.

Key Facts for 15 May 1979

On 15 May 1979, 404 weather records were set or tied at long-record stations worldwide.
200 were record highs and 94 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 8 monthly and 395 daily.
Las Burras set a daily record precipitation of 28.4 mm (1.1 in) on 15 May 1979.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 431 records.

Record Map

404 stations

404 station records on 15 May 1979 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 1979: highest significance records shown on the map
Station	Country	Type	Value	Significance
Las Burras	Mexico	Record daily precipitation	28.4 mm (1.1 in)	47 of 100 (Notable)
Samnanger	Norway	Record daily precipitation	68.4 mm (2.7 in)	45 of 100 (Notable)
New Holland	United States	Record daily precipitation	50.0 mm (2.0 in)	45 of 100 (Notable)
Tamanrasset	Algeria	Record daily precipitation	30.0 mm (1.2 in)	44 of 100 (Notable)
Bishopville 1.4 ENE	United States	Record daily precipitation	68.6 mm (2.7 in)	44 of 100 (Notable)
Humacao 2 SSE	Puerto Rico [United States]	Record daily precipitation	99.1 mm (3.9 in)	43 of 100 (Notable)
Uppsala_Aut	Sweden	Record high minimum temperature	9.8 C (49.6 F)	40 of 100 (Notable)
Arcola	United States	Record daily precipitation	47.5 mm (1.9 in)	38 of 100 (Notable)
Kedabek	Azerbaijan	Record daily precipitation	43.1 mm (1.7 in)	33 of 100 (Routine)
Huamuxtitlan (Smn)	Mexico	Record daily precipitation	31.0 mm (1.2 in)	33 of 100 (Routine)
Princess Anne	United States	Record high minimum temperature	20.6 C (69.1 F)	33 of 100 (Routine)
Ze da Rosa	Brazil	Record daily precipitation	30.7 mm (1.2 in)	32 of 100 (Routine)
Durham	United Kingdom	Record high minimum temperature	10.2 C (50.4 F)	32 of 100 (Routine)
Jardim de Angicos	Brazil	Record daily precipitation	43.6 mm (1.7 in)	31 of 100 (Routine)
Fajardo	Puerto Rico [United States]	Record daily precipitation	109.2 mm (4.3 in)	31 of 100 (Routine)
Madison	United States	Record high minimum temperature	12.8 C (55.0 F)	31 of 100 (Routine)
Dori	Burkina Faso	Record low maximum temperature	30.8 C (87.4 F)	31 of 100 (Routine)
Tasiilaq	Greenland [Denmark]	Record low minimum temperature	-10.6 C (12.9 F)	30 of 100 (Routine)
Tierra Blanca (Smn)	Mexico	Record low maximum temperature	26.7 C (80.1 F)	30 of 100 (Routine)
Leopold Downs	Australia	Record daily precipitation	26.0 mm (1.0 in)	29 of 100 (Routine)
Tejucuoca	Brazil	Record daily precipitation	84.3 mm (3.3 in)	29 of 100 (Routine)
Collegeville	Canada	Record high minimum temperature	12.0 C (53.6 F)	29 of 100 (Routine)
La Venta Cuajimalpa	Mexico	Record daily precipitation	45.2 mm (1.8 in)	29 of 100 (Routine)
Zinder	Niger	Record high minimum temperature	29.6 C (85.3 F)	29 of 100 (Routine)
Maunabo	Puerto Rico [United States]	Record daily precipitation	58.2 mm (2.3 in)	29 of 100 (Routine)
Enfield	United States	Record daily precipitation	49.0 mm (1.9 in)	29 of 100 (Routine)
Seaside	United States	Record high minimum temperature	14.4 C (57.9 F)	29 of 100 (Routine)
Atlin	Canada	Record low minimum temperature	-4.0 C (24.8 F)	28 of 100 (Routine)
Turgaj	Kazakhstan	Record high minimum temperature	17.4 C (63.3 F)	28 of 100 (Routine)
San Francisco Tlalcilalcalpan	Mexico	Record daily precipitation	27.9 mm (1.1 in)	28 of 100 (Routine)
Skegness	United Kingdom	Record high maximum temperature	23.0 C (73.4 F)	28 of 100 (Routine)
Charlottetown Cda	Canada	Record high minimum temperature	12.0 C (53.6 F)	27 of 100 (Routine)
Sombrerete (Dge)	Mexico	Record low minimum temperature	3.9 C (39.0 F)	27 of 100 (Routine)
Ames	United States	Record snow depth	17.8 cm (7.0 in)	27 of 100 (Routine)
Scotland Neck	United States	Record daily precipitation	27.9 mm (1.1 in)	27 of 100 (Routine)
Naalehu 14	United States	Record low minimum temperature	16.1 C (61.0 F)	27 of 100 (Routine)
Saint Paul Is AP	United States	Record high minimum temperature	4.4 C (39.9 F)	27 of 100 (Routine)
Carcross	Canada	Record low minimum temperature	-6.0 C (21.2 F)	26 of 100 (Routine)
Santa Fe del Rio	Mexico	Record low maximum temperature	20.6 C (69.1 F)	26 of 100 (Routine)
Nashville	United States	Record daily precipitation	28.4 mm (1.1 in)	26 of 100 (Routine)
Catole	Brazil	Record daily precipitation	40.1 mm (1.6 in)	25 of 100 (Routine)
Pte de Chassiron	France	Record high maximum temperature	24.8 C (76.6 F)	25 of 100 (Routine)
Nouadhibou Port-Etienne	Mauritania	Record high minimum temperature	21.0 C (69.8 F)	25 of 100 (Routine)
Shoshone 1 WNW	United States	Record high minimum temperature	11.7 C (53.1 F)	25 of 100 (Routine)
Casa Grande	Brazil	Record daily precipitation	30.0 mm (1.2 in)	24 of 100 (Routine)
Porto	Brazil	Record daily precipitation	71.7 mm (2.8 in)	24 of 100 (Routine)
Springfield	Canada	Record high minimum temperature	12.8 C (55.0 F)	24 of 100 (Routine)
Caen-Carpiquet	France	Record high maximum temperature	26.1 C (79.0 F)	24 of 100 (Routine)
Essen/Mulheim	Germany	Record high minimum temperature	16.0 C (60.8 F)	24 of 100 (Routine)
Farmington	United States	Record high minimum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Salva Vidas	Brazil	Record daily precipitation	27.4 mm (1.1 in)	23 of 100 (Routine)
Ocean Falls	Canada	Record low minimum temperature	-5.0 C (23.0 F)	23 of 100 (Routine)
Halls Creek Airport	Australia	Record low maximum temperature	18.9 C (66.0 F)	22 of 100 (Routine)
Broome Airport	Australia	Record low maximum temperature	20.0 C (68.0 F)	22 of 100 (Routine)
Jose de Freitas	Brazil	Record daily precipitation	50.3 mm (2.0 in)	22 of 100 (Routine)
Poitiers - Biard	France	Record high maximum temperature	27.3 C (81.1 F)	22 of 100 (Routine)
Zolotoj	Russia	Record low minimum temperature	-2.8 C (27.0 F)	22 of 100 (Routine)
Pogranichnyj	Russia	Record low maximum temperature	8.2 C (46.8 F)	22 of 100 (Routine)
Falun	Sweden	Record high minimum temperature	11.1 C (52.0 F)	22 of 100 (Routine)
Faro	Sweden	Record high maximum temperature	21.3 C (70.3 F)	22 of 100 (Routine)

Counts by Type and Timescale

404 records

Records set or tied on 15 May 1979 by type: Highest daily maximum 83, Lowest daily maximum 49, Highest daily minimum 117, Lowest daily minimum 45, Heaviest daily rainfall 107, Heaviest daily snowfall 1, Deepest snow cover 2.

Records on 15 May 1979 by type
Record type	Records
Highest daily maximum	83
Lowest daily maximum	49
Highest daily minimum	117
Lowest daily minimum	45
Heaviest daily rainfall	107
Heaviest daily snowfall	1
Deepest snow cover	2

Records on 15 May 1979 by timescale: all-time 1, monthly 8, daily 395.

How Much Records Were Beaten By

336 broken records

Margins by which the 336 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.

Top 20 by Significance

15 May 1979

Top 20 records on 15 May 1979 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 1979	Las Burras, MX	daily rain	28.4 mm (1.1 in)	27.1 mm (1.1 in)	16 years	47 of 100 (Notable)
15 May 1979	Samnanger, NO	daily rain	68.4 mm (2.7 in)	18.6 mm (0.7 in)	74 years	45 of 100 (Notable)
15 May 1979	New Holland, US	daily rain	50.0 mm (2.0 in)	29.7 mm (1.2 in)	56 years	45 of 100 (Notable)
15 May 1979	Tamanrasset, DZ	monthly rain	30.0 mm (1.2 in)	13.0 mm (0.5 in)	13 years	44 of 100 (Notable)
15 May 1979	Bishopville 1.4 ENE, US	daily rain	68.6 mm (2.7 in)	40.4 mm (1.6 in)	36 years	44 of 100 (Notable)
15 May 1979	Humacao 2 SSE, PR	daily rain	99.1 mm (3.9 in)	52.4 mm (2.1 in)	44 years	43 of 100 (Notable)
15 May 1979	Uppsala_Aut, SE	daily high min	9.8 C (49.6 F)	0.1 C (0.2 F)	110 years	40 of 100 (Notable)
15 May 1979	Arcola, US	daily rain	47.5 mm (1.9 in)	35.3 mm (1.4 in)	6 years	38 of 100 (Notable)
15 May 1979	Kedabek, AZ	daily rain	43.1 mm (1.7 in)	11.8 mm (0.5 in)	36 years	33 of 100 (Routine)
15 May 1979	Huamuxtitlan (Smn), MX	daily rain	31.0 mm (1.2 in)	26.2 mm (1.0 in)	20 years	33 of 100 (Routine)
15 May 1979	Princess Anne, US	daily high min	20.6 C (69.1 F)	1.2 C (2.2 F)	78 years	33 of 100 (Routine)
15 May 1979	Ze da Rosa, BR	daily rain	30.7 mm (1.2 in)	26.7 mm (1.1 in)	13 years	32 of 100 (Routine)
15 May 1979	Durham, GB	daily high min	10.2 C (50.4 F)	0.8 C (1.4 F)	68 years	32 of 100 (Routine)
15 May 1979	Jardim de Angicos, BR	daily rain	43.6 mm (1.7 in)	28.4 mm (1.1 in)	5 years	31 of 100 (Routine)
15 May 1979	Fajardo, PR	daily rain	109.2 mm (4.3 in)	38.1 mm (1.5 in)	36 years	31 of 100 (Routine)
15 May 1979	Madison, US	daily high min	12.8 C (55.0 F)	2.2 C (4.0 F)	60 years	31 of 100 (Routine)
15 May 1979	Dori, BF	daily low max	30.8 C (87.4 F)	5.6 C (10.1 F)	24 years	31 of 100 (Routine)
15 May 1979	Tasiilaq, GL	daily low min	-10.6 C (12.9 F)	0.2 C (0.4 F)	76 years	30 of 100 (Routine)
15 May 1979	Tierra Blanca (Smn), MX	daily low max	26.7 C (80.1 F)	2.7 C (4.9 F)	53 years	30 of 100 (Routine)
15 May 1979	Leopold Downs, AU	daily rain	26.0 mm (1.0 in)	15.8 mm (0.6 in)	46 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

1820 to 1979

Records set or tied on this calendar date in each year from 1820 to 1979. 1979 had 404 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 1979-05-15: 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 10	299
10 to 20	20
20 to 30	10
30 to 40	3
40 to 50	2
50 to 60	1
60 to 70	0
70 to 80	1