Weather Records on 15 May 1948

264 weather records were set or tied worldwide on 15 May 1948. Highest significance: Langdon Exp Farm, US.

Key Facts for 15 May 1948

On 15 May 1948, 264 weather records were set or tied at long-record stations worldwide.
106 were record highs and 45 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 2 monthly and 262 daily.
Langdon Exp Farm set a daily record precipitation of 34.3 mm (1.4 in) on 15 May 1948.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 432 records.

Record Map

264 stations

264 station records on 15 May 1948 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 1948: highest significance records shown on the map
Station	Country	Type	Value	Significance
Langdon Exp Farm	United States	Record daily precipitation	34.3 mm (1.4 in)	50 of 100 (Notable)
Likatlong	South Africa	Record daily precipitation	34.8 mm (1.4 in)	49 of 100 (Notable)
Liafoss	Norway	Record daily precipitation	43.8 mm (1.7 in)	47 of 100 (Notable)
Ai-Petri	Ukraine	Record daily precipitation	32.6 mm (1.3 in)	44 of 100 (Notable)
Hannah 2 N	United States	Record daily precipitation	53.3 mm (2.1 in)	40 of 100 (Notable)
Greeley	United States	Record high minimum temperature	15.0 C (59.0 F)	35 of 100 (Notable)
Nerchinskij Zavod	Russia	Record high minimum temperature	13.0 C (55.4 F)	32 of 100 (Routine)
Estherville 4E	United States	Record daily precipitation	56.4 mm (2.2 in)	31 of 100 (Routine)
Santa Fe	United States	Record high maximum temperature	29.4 C (84.9 F)	30 of 100 (Routine)
Brejo da Madre de Deus	Brazil	Record daily precipitation	30.5 mm (1.2 in)	29 of 100 (Routine)
Clarens (Pol)	South Africa	Record daily precipitation	40.6 mm (1.6 in)	28 of 100 (Routine)
Augsburg (Sankt Stephan)	Germany	Record high minimum temperature	15.0 C (59.0 F)	26 of 100 (Routine)
Chapple Vale	Australia	Record daily precipitation	26.9 mm (1.1 in)	25 of 100 (Routine)
Blagovescensk	Russia	Record high minimum temperature	14.8 C (58.6 F)	25 of 100 (Routine)
Kaallaagte	South Africa	Record daily precipitation	30.7 mm (1.2 in)	25 of 100 (Routine)
Armagh	United Kingdom	Record high maximum temperature	21.8 C (71.2 F)	25 of 100 (Routine)
Norman 3SSE	United States	Record high minimum temperature	20.6 C (69.1 F)	24 of 100 (Routine)
Port Townsend	United States	Record low minimum temperature	2.8 C (37.0 F)	24 of 100 (Routine)
Gubbi Sr	India	Record daily precipitation	39.6 mm (1.6 in)	23 of 100 (Routine)
Bajramaly	Turkmenistan	Record low minimum temperature	8.9 C (48.0 F)	23 of 100 (Routine)
Kommissiepoort	South Africa	Record daily precipitation	34.5 mm (1.4 in)	22 of 100 (Routine)
Bar Harbor 3 NW	United States	Record low maximum temperature	7.8 C (46.0 F)	22 of 100 (Routine)
New Iberia AP - Acadiana Rgnl	United States	Record high maximum temperature	32.8 C (91.0 F)	21 of 100 (Routine)
Hennessey 4 ESE	United States	Record high minimum temperature	21.1 C (70.0 F)	21 of 100 (Routine)
Kola-In-Murman	Russia	Record daily precipitation	15.7 mm (0.6 in)	20 of 100 (Routine)
Uitkyk	South Africa	Record daily precipitation	19.8 mm (0.8 in)	20 of 100 (Routine)
Namdalseid	Norway	Record daily precipitation	17.3 mm (0.7 in)	20 of 100 (Routine)
Bierbank	Australia	Record daily precipitation	23.6 mm (0.9 in)	20 of 100 (Routine)
Pemberton Meadows	Canada	Record daily precipitation	13.0 mm (0.5 in)	20 of 100 (Routine)
Heilbron (Tnk)	South Africa	Record daily precipitation	5.1 mm (0.20 in)	20 of 100 (Routine)
Grand Marais	United States	Record daily precipitation	21.6 mm (0.9 in)	20 of 100 (Routine)
Brewon	Australia	Record daily precipitation	18.5 mm (0.7 in)	20 of 100 (Routine)
Glencliff	United States	Record daily precipitation	20.1 mm (0.8 in)	20 of 100 (Routine)
Irapuato	Mexico	Record daily precipitation	4.8 mm (0.19 in)	20 of 100 (Routine)
Fayette	United States	Record daily precipitation	24.1 mm (0.9 in)	20 of 100 (Routine)
Warroad	United States	Record daily precipitation	19.1 mm (0.8 in)	20 of 100 (Routine)
Mount McDonald	Australia	Record daily precipitation	18.0 mm (0.7 in)	20 of 100 (Routine)
Kuilput	South Africa	Record daily precipitation	10.4 mm (0.4 in)	20 of 100 (Routine)
Donkerhoek (Skl)	South Africa	Record daily precipitation	8.9 mm (0.35 in)	20 of 100 (Routine)
Noondoo	Australia	Record daily precipitation	24.4 mm (1.0 in)	20 of 100 (Routine)
Sodankyla AWS	Finland	Record daily precipitation	10.0 mm (0.4 in)	20 of 100 (Routine)
Paardekopplaas	South Africa	Record daily precipitation	8.6 mm (0.34 in)	20 of 100 (Routine)
Rietpoort	South Africa	Record daily precipitation	9.7 mm (0.38 in)	20 of 100 (Routine)
Winfield 3NE	United States	Record high minimum temperature	20.6 C (69.1 F)	20 of 100 (Routine)
Bluewater 3 WSW	United States	Record high minimum temperature	7.8 C (46.0 F)	20 of 100 (Routine)
Perry	United States	Record high minimum temperature	21.7 C (71.1 F)	20 of 100 (Routine)
Crosbyton	United States	Record high minimum temperature	18.9 C (66.0 F)	20 of 100 (Routine)
Arabella	Australia	Record daily precipitation	24.9 mm (1.0 in)	19 of 100 (Routine)
Bangate	Australia	Record daily precipitation	24.1 mm (0.9 in)	19 of 100 (Routine)
Bridport Post Office	Australia	Record daily precipitation	23.6 mm (0.9 in)	19 of 100 (Routine)
Dublin Phoenix Park	Ireland	Record high maximum temperature	21.1 C (70.0 F)	19 of 100 (Routine)
Ranebennur	India	Record daily precipitation	18.5 mm (0.7 in)	19 of 100 (Routine)
Vlaklaagte	South Africa	Record daily precipitation	3.8 mm (0.15 in)	19 of 100 (Routine)
Hartebeespoort-Agrc.	South Africa	Record daily precipitation	5.8 mm (0.23 in)	19 of 100 (Routine)
Berkeley	United States	Record low minimum temperature	4.4 C (39.9 F)	19 of 100 (Routine)
Madison	United States	Record daily precipitation	31.8 mm (1.3 in)	19 of 100 (Routine)
Indian Lake 2SW	United States	Record low maximum temperature	7.2 C (45.0 F)	19 of 100 (Routine)
Wilkes Barre	United States	Record daily precipitation	31.8 mm (1.3 in)	19 of 100 (Routine)
Kenilworth Township	Australia	Record daily precipitation	34.8 mm (1.4 in)	18 of 100 (Routine)
Cape Bridgewater	Australia	Record daily precipitation	21.6 mm (0.9 in)	18 of 100 (Routine)

Counts by Type and Timescale

264 records

Records set or tied on 15 May 1948 by type: Highest daily maximum 51, Lowest daily maximum 21, Highest daily minimum 55, Lowest daily minimum 24, Heaviest daily rainfall 110, Heaviest daily snowfall 2, Deepest snow cover 1.

Records on 15 May 1948 by type
Record type	Records
Highest daily maximum	51
Lowest daily maximum	21
Highest daily minimum	55
Lowest daily minimum	24
Heaviest daily rainfall	110
Heaviest daily snowfall	2
Deepest snow cover	1

Records on 15 May 1948 by timescale: all-time 0, monthly 2, daily 262.

How Much Records Were Beaten By

203 broken records

Margins by which the 203 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 38.1. Ties are not counted.

Top 20 by Significance

15 May 1948

Top 20 records on 15 May 1948 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 1948	Langdon Exp Farm, US	daily rain	34.3 mm (1.4 in)	22.1 mm (0.9 in)	42 years	50 of 100 (Notable)
15 May 1948	Likatlong, ZA	daily rain	34.8 mm (1.4 in)	32.5 mm (1.3 in)	21 years	49 of 100 (Notable)
15 May 1948	Liafoss, NO	daily rain	43.8 mm (1.7 in)	34.2 mm (1.3 in)	10 years	47 of 100 (Notable)
15 May 1948	Ai-Petri, UA	daily rain	32.6 mm (1.3 in)	25.7 mm (1.0 in)	12 years	44 of 100 (Notable)
15 May 1948	Hannah 2 N, US	daily rain	53.3 mm (2.1 in)	38.1 mm (1.5 in)	6 years	40 of 100 (Notable)
15 May 1948	Greeley, US	daily high min	15.0 C (59.0 F)	5.6 C (10.1 F)	48 years	35 of 100 (Notable)
15 May 1948	Nerchinskij Zavod, RU	daily high min	13.0 C (55.4 F)	5.6 C (10.1 F)	48 years	32 of 100 (Routine)
15 May 1948	Estherville 4E, US	daily rain	56.4 mm (2.2 in)	19.6 mm (0.8 in)	32 years	31 of 100 (Routine)
15 May 1948	Santa Fe, US	daily high max	29.4 C (84.9 F)	1.1 C (2.0 F)	72 years	30 of 100 (Routine)
15 May 1948	Brejo da Madre de Deus, BR	daily rain	30.5 mm (1.2 in)	23.2 mm (0.9 in)	24 years	29 of 100 (Routine)
15 May 1948	Clarens (Pol), ZA	daily rain	40.6 mm (1.6 in)	27.4 mm (1.1 in)	9 years	28 of 100 (Routine)
15 May 1948	Augsburg (Sankt Stephan), DE	daily high min	15.0 C (59.0 F)	0.9 C (1.6 F)	58 years	26 of 100 (Routine)
15 May 1948	Chapple Vale, AU	daily rain	26.9 mm (1.1 in)	8.4 mm (0.33 in)	31 years	25 of 100 (Routine)
15 May 1948	Blagovescensk, RU	daily high min	14.8 C (58.6 F)	2.4 C (4.3 F)	47 years	25 of 100 (Routine)
15 May 1948	Kaallaagte, ZA	daily rain	30.7 mm (1.2 in)	13.7 mm (0.5 in)	19 years	25 of 100 (Routine)
15 May 1948	Armagh, GB	daily high max	21.8 C (71.2 F)	0.5 C (0.9 F)	47 years	25 of 100 (Routine)
15 May 1948	Norman 3SSE, US	daily high min	20.6 C (69.1 F)	1.7 C (3.1 F)	52 years	24 of 100 (Routine)
15 May 1948	Port Townsend, US	daily low min	2.8 C (37.0 F)	1.1 C (2.0 F)	48 years	24 of 100 (Routine)
15 May 1948	Gubbi Sr, IN	daily rain	39.6 mm (1.6 in)	12.4 mm (0.5 in)	42 years	23 of 100 (Routine)
15 May 1948	Bajramaly, TM	daily low min	8.9 C (48.0 F)	1.0 C (1.8 F)	50 years	23 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 1948

Records set or tied on this calendar date in each year from 1820 to 1948. 1948 had 264 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 1948-05-15: 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 2026-10-15. Last revised 15 October 2026 (2026-10-15).

Margin	Records
0 to 5	147
5 to 10	36
10 to 15	8
15 to 20	5
20 to 25	2
25 to 30	2
30 to 35	2
35 to 40	1