Weather Records on 15 May 1973

818 weather records were set or tied worldwide on 15 May 1973. Highest significance: Kerch, UA.

Key Facts for 15 May 1973

On 15 May 1973, 818 weather records were set or tied at long-record stations worldwide.
273 were record highs and 395 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 13 monthly and 805 daily.
Kerch set a monthly record daily precipitation of 100.1 mm (3.9 in) on 15 May 1973.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 428 records.

Record Map

818 stations

818 station records on 15 May 1973 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 1973: highest significance records shown on the map
Station	Country	Type	Value	Significance
Kerch	Ukraine	Record daily precipitation	100.1 mm (3.9 in)	55 of 100 (Notable)
Feodosiia	Ukraine	Record daily precipitation	29.8 mm (1.2 in)	54 of 100 (Notable)
Jogeva	Estonia	Record daily precipitation	32.8 mm (1.3 in)	46 of 100 (Notable)
Pindobacu	Brazil	Record daily precipitation	45.2 mm (1.8 in)	43 of 100 (Notable)
Wilsons Promontory Lighthouse	Australia	Record daily precipitation	26.9 mm (1.1 in)	40 of 100 (Notable)
Cape Kazantip (Lh)	Ukraine	Record daily precipitation	39.3 mm (1.5 in)	40 of 100 (Notable)
Everett	United States	Record high maximum temperature	28.9 C (84.0 F)	39 of 100 (Notable)
Morgantown Muni AP	United States	Record low minimum temperature	3.3 C (37.9 F)	39 of 100 (Notable)
Inverloch	Australia	Record daily precipitation	27.7 mm (1.1 in)	35 of 100 (Notable)
Voru	Estonia	Record daily precipitation	25.9 mm (1.0 in)	35 of 100 (Notable)
Delicias (Dge)	Mexico	Record low maximum temperature	20.6 C (69.1 F)	35 of 100 (Notable)
Elkader 6 SSW	United States	Record low minimum temperature	-3.3 C (26.1 F)	35 of 100 (Notable)
Wagner (Itacira)	Brazil	Record daily precipitation	55.7 mm (2.2 in)	34 of 100 (Routine)
Viljandi	Estonia	Record daily precipitation	28.6 mm (1.1 in)	34 of 100 (Routine)
Santa Cruz Juventino Rosas (S	Mexico	Record low maximum temperature	22.2 C (72.0 F)	34 of 100 (Routine)
Carrizozo 1SW	United States	Record low maximum temperature	9.4 C (48.9 F)	34 of 100 (Routine)
Clovis	United States	Record low maximum temperature	10.0 C (50.0 F)	34 of 100 (Routine)
Watseka Public Works	United States	Record low minimum temperature	1.7 C (35.1 F)	33 of 100 (Routine)
Irvington	United States	Record low minimum temperature	1.1 C (34.0 F)	33 of 100 (Routine)
Yerington	United States	Record high minimum temperature	11.7 C (53.1 F)	33 of 100 (Routine)
Sibley	United States	Record low minimum temperature	-2.8 C (27.0 F)	32 of 100 (Routine)
Shelbyville 1 E	United States	Record low minimum temperature	1.1 C (34.0 F)	32 of 100 (Routine)
Albert Lea 3SE	United States	Record low minimum temperature	-0.6 C (30.9 F)	32 of 100 (Routine)
Artesia 6S	United States	Record low maximum temperature	11.7 C (53.1 F)	32 of 100 (Routine)
Gatesville	United States	Record low maximum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Marble Bar Comparison	Australia	Record low maximum temperature	22.2 C (72.0 F)	31 of 100 (Routine)
Winkelman 6 S	United States	Record high minimum temperature	17.8 C (64.0 F)	31 of 100 (Routine)
Kokomo 3 WSW	United States	Record low minimum temperature	-0.6 C (30.9 F)	31 of 100 (Routine)
Estherville 4E	United States	Record low minimum temperature	-2.8 C (27.0 F)	31 of 100 (Routine)
Balmorhea	United States	Record low maximum temperature	15.6 C (60.1 F)	31 of 100 (Routine)
Seattle UNIV of Washin	United States	Record high maximum temperature	33.3 C (91.9 F)	31 of 100 (Routine)
Wrangell AP	United States	Record high maximum temperature	25.6 C (78.1 F)	31 of 100 (Routine)
Polis	Cyprus	Record daily precipitation	26.1 mm (1.0 in)	30 of 100 (Routine)
Lodi	United States	Record high minimum temperature	15.0 C (59.0 F)	30 of 100 (Routine)
Vevay	United States	Record low minimum temperature	2.2 C (36.0 F)	30 of 100 (Routine)
Knoxville	United States	Record low minimum temperature	0.0 C (32.0 F)	30 of 100 (Routine)
Owensboro 3ENE	United States	Record low minimum temperature	2.8 C (37.0 F)	30 of 100 (Routine)
Beaver City	United States	Record low minimum temperature	-4.4 C (24.1 F)	30 of 100 (Routine)
Tularosa	United States	Record low maximum temperature	19.4 C (66.9 F)	30 of 100 (Routine)
Mitchell 2 NW	United States	Record high minimum temperature	13.9 C (57.0 F)	30 of 100 (Routine)
Mt Locke	United States	Record low maximum temperature	11.1 C (52.0 F)	30 of 100 (Routine)
Killara	Australia	Record daily precipitation	36.1 mm (1.4 in)	29 of 100 (Routine)
Powell River	Canada	Record high minimum temperature	15.6 C (60.1 F)	29 of 100 (Routine)
Mt Vernon 3 NE	United States	Record low minimum temperature	2.8 C (37.0 F)	29 of 100 (Routine)
Delaware 3 WSW	United States	Record low minimum temperature	-1.1 C (30.0 F)	29 of 100 (Routine)
Anchorage	United States	Record low minimum temperature	1.7 C (35.1 F)	29 of 100 (Routine)
Broken Bow 2 W	United States	Record low minimum temperature	-5.0 C (23.0 F)	29 of 100 (Routine)
Ravenna	United States	Record low minimum temperature	-6.1 C (21.0 F)	29 of 100 (Routine)
Bosque del Apache	United States	Record low maximum temperature	18.3 C (64.9 F)	29 of 100 (Routine)
Cedar Lake	United States	Record high maximum temperature	31.7 C (89.1 F)	29 of 100 (Routine)
Startup 1 E	United States	Record high maximum temperature	35.0 C (95.0 F)	29 of 100 (Routine)
El Carmen (Smn)	Mexico	Record daily precipitation	115.8 mm (4.6 in)	28 of 100 (Routine)
Greensboro	United States	Record low minimum temperature	6.1 C (43.0 F)	28 of 100 (Routine)
Anna 4 N	United States	Record low minimum temperature	5.0 C (41.0 F)	28 of 100 (Routine)
Vinton	United States	Record low minimum temperature	0.0 C (32.0 F)	28 of 100 (Routine)
Leitchfield 2 N	United States	Record low minimum temperature	2.2 C (36.0 F)	28 of 100 (Routine)
Curtis	United States	Record low minimum temperature	-4.4 C (24.1 F)	28 of 100 (Routine)
Conchas Dam	United States	Record low maximum temperature	12.2 C (54.0 F)	28 of 100 (Routine)
Savannah 6 SW	United States	Record low minimum temperature	3.9 C (39.0 F)	28 of 100 (Routine)
Ysleta	United States	Record low maximum temperature	17.2 C (63.0 F)	28 of 100 (Routine)

Counts by Type and Timescale

818 records

Records set or tied on 15 May 1973 by type: Highest daily maximum 159, Lowest daily maximum 122, Highest daily minimum 114, Lowest daily minimum 273, Heaviest daily rainfall 148, Heaviest daily snowfall 1, Deepest snow cover 1.

Records on 15 May 1973 by type
Record type	Records
Highest daily maximum	159
Lowest daily maximum	122
Highest daily minimum	114
Lowest daily minimum	273
Heaviest daily rainfall	148
Heaviest daily snowfall	1
Deepest snow cover	1

Records on 15 May 1973 by timescale: all-time 0, monthly 13, daily 805.

How Much Records Were Beaten By

638 broken records

Margins by which the 638 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 66.7. Ties are not counted.

Top 20 by Significance

15 May 1973

Top 20 records on 15 May 1973 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 1973	Kerch, UA	monthly rain	100.1 mm (3.9 in)	66.7 mm (2.6 in)	9 years	55 of 100 (Notable)
15 May 1973	Feodosiia, UA	daily rain	29.8 mm (1.2 in)	15.6 mm (0.6 in)	59 years	54 of 100 (Notable)
15 May 1973	Jogeva, EE	daily rain	32.8 mm (1.3 in)	20.2 mm (0.8 in)	6 years	46 of 100 (Notable)
15 May 1973	Pindobacu, BR	daily rain	45.2 mm (1.8 in)	24.2 mm (1.0 in)	36 years	43 of 100 (Notable)
15 May 1973	Wilsons Promontory Lighthouse, AU	daily rain	26.9 mm (1.1 in)	3.3 mm (0.13 in)	88 years	40 of 100 (Notable)
15 May 1973	Cape Kazantip (Lh), UA	daily rain	39.3 mm (1.5 in)	26.5 mm (1.0 in)	19 years	40 of 100 (Notable)
15 May 1973	Everett, US	daily high max	28.9 C (84.0 F)	5.6 C (10.1 F)	51 years	39 of 100 (Notable)
15 May 1973	Morgantown Muni AP, US	daily low min	3.3 C (37.9 F)	1.1 C (2.0 F)	94 years	39 of 100 (Notable)
15 May 1973	Inverloch, AU	daily rain	27.7 mm (1.1 in)	3.6 mm (0.14 in)	75 years	35 of 100 (Notable)
15 May 1973	Voru, EE	daily rain	25.9 mm (1.0 in)	7.4 mm (0.29 in)	52 years	35 of 100 (Notable)
15 May 1973	Delicias (Dge), MX	daily low max	20.6 C (69.1 F)	8.3 C (14.9 F)	27 years	35 of 100 (Notable)
15 May 1973	Elkader 6 SSW, US	daily low min	-3.3 C (26.1 F)	2.2 C (4.0 F)	77 years	35 of 100 (Notable)
15 May 1973	Wagner (Itacira), BR	monthly rain	55.7 mm (2.2 in)	11.3 mm (0.4 in)	10 years	34 of 100 (Routine)
15 May 1973	Viljandi, EE	daily rain	28.6 mm (1.1 in)	11.0 mm (0.4 in)	18 years	34 of 100 (Routine)
15 May 1973	Santa Cruz Juventino Rosas (S, MX	daily low max	22.2 C (72.0 F)	5.0 C (9.0 F)	36 years	34 of 100 (Routine)
15 May 1973	Carrizozo 1SW, US	monthly low max	9.4 C (48.9 F)	0.6 C (1.1 F)	57 years	34 of 100 (Routine)
15 May 1973	Clovis, US	daily low max	10.0 C (50.0 F)	6.7 C (12.1 F)	51 years	34 of 100 (Routine)
15 May 1973	Watseka Public Works, US	daily low min	1.7 C (35.1 F)	1.1 C (2.0 F)	77 years	33 of 100 (Routine)
15 May 1973	Irvington, US	daily low min	1.1 C (34.0 F)	3.3 C (5.9 F)	68 years	33 of 100 (Routine)
15 May 1973	Yerington, US	daily high min	11.7 C (53.1 F)	1.1 C (2.0 F)	77 years	33 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 1973

Records set or tied on this calendar date in each year from 1820 to 1973. 1973 had 818 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 1973-05-15: 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	617
10 to 20	15
20 to 30	4
30 to 40	0
40 to 50	1
50 to 60	0
60 to 70	1