Weather Records on 18 May 1950

473 weather records were set or tied worldwide on 18 May 1950. Highest significance: Peddie (Mag), ZA.

Key Facts for 18 May 1950

On 18 May 1950, 473 weather records were set or tied at long-record stations worldwide.
28 were record highs and 142 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 12 monthly and 461 daily.
Peddie (Mag) set a daily record precipitation of 71.1 mm (2.8 in) on 18 May 1950.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 442 records.

Record Map

473 stations

473 station records on 18 May 1950 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1950: highest significance records shown on the map
Station	Country	Type	Value	Significance
Peddie (Mag)	South Africa	Record daily precipitation	71.1 mm (2.8 in)	67 of 100 (Major)
Lady Frere (Tnk)	South Africa	Record daily precipitation	38.6 mm (1.5 in)	61 of 100 (Major)
Adelaide (Pol)	South Africa	Record daily precipitation	47.0 mm (1.9 in)	59 of 100 (Notable)
Fort Fordyce (Bos)	South Africa	Record daily precipitation	64.8 mm (2.6 in)	58 of 100 (Notable)
Cata (Bos)	South Africa	Record daily precipitation	50.8 mm (2.0 in)	58 of 100 (Notable)
Middleburg	South Africa	Record daily precipitation	40.1 mm (1.6 in)	55 of 100 (Notable)
Mqanduli (Tnk)	South Africa	Record daily precipitation	25.4 mm (1.0 in)	52 of 100 (Notable)
Cullendale	South Africa	Record daily precipitation	38.1 mm (1.5 in)	49 of 100 (Notable)
Ludlow	South Africa	Record daily precipitation	34.5 mm (1.4 in)	48 of 100 (Notable)
Lynch	United States	Record daily precipitation	51.6 mm (2.0 in)	48 of 100 (Notable)
Sultanganj	India	Record daily precipitation	43.7 mm (1.7 in)	47 of 100 (Notable)
Hillmoor	South Africa	Record daily precipitation	41.4 mm (1.6 in)	46 of 100 (Notable)
Waterkloof	South Africa	Record daily precipitation	39.4 mm (1.6 in)	45 of 100 (Notable)
Tyndall	United States	Record daily precipitation	53.3 mm (2.1 in)	45 of 100 (Notable)
Hillside	South Africa	Record daily precipitation	50.8 mm (2.0 in)	44 of 100 (Notable)
Weltevrede	South Africa	Record daily precipitation	33.0 mm (1.3 in)	44 of 100 (Notable)
Miller	United States	Record daily precipitation	47.2 mm (1.9 in)	44 of 100 (Notable)
Rabula (Bos)	South Africa	Record daily precipitation	106.4 mm (4.2 in)	42 of 100 (Notable)
Reddersburg (Pol)	South Africa	Record daily precipitation	28.4 mm (1.1 in)	42 of 100 (Notable)
Willowvale (Tnk)	South Africa	Record daily precipitation	38.4 mm (1.5 in)	41 of 100 (Notable)
Molteno (Mun)	South Africa	Record daily precipitation	25.7 mm (1.0 in)	41 of 100 (Notable)
Wolfridge (Bos)	South Africa	Record daily precipitation	32.5 mm (1.3 in)	40 of 100 (Notable)
Buxton (Bos)	South Africa	Record daily precipitation	27.9 mm (1.1 in)	38 of 100 (Notable)
Hogsback (Bos)	South Africa	Record daily precipitation	33.0 mm (1.3 in)	37 of 100 (Notable)
Katberg (Bos)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	37 of 100 (Notable)
Cwebe	South Africa	Record daily precipitation	64.8 mm (2.6 in)	37 of 100 (Notable)
Kubusie (Bos)	South Africa	Record daily precipitation	27.9 mm (1.1 in)	36 of 100 (Notable)
Isidinge (Bos)	South Africa	Record daily precipitation	30.7 mm (1.2 in)	36 of 100 (Notable)
Port Shepstone	South Africa	Record daily precipitation	82.6 mm (3.3 in)	36 of 100 (Notable)
Ashland	United States	Record daily precipitation	30.5 mm (1.2 in)	36 of 100 (Notable)
Hilo 86A	United States	Record daily precipitation	159.3 mm (6.3 in)	36 of 100 (Notable)
Kologha (Bos)	South Africa	Record daily precipitation	26.7 mm (1.1 in)	35 of 100 (Notable)
Izeleni (Bos)	South Africa	Record daily precipitation	31.2 mm (1.2 in)	35 of 100 (Notable)
Chambersburg 1 ESE	United States	Record daily precipitation	36.3 mm (1.4 in)	35 of 100 (Notable)
Aberdeen	United States	Record daily precipitation	32.3 mm (1.3 in)	35 of 100 (Notable)
World Trade Ctr	United States	Record low maximum temperature	11.7 C (53.1 F)	34 of 100 (Routine)
Kei Road (Pol)	South Africa	Record daily precipitation	99.6 mm (3.9 in)	33 of 100 (Routine)
State College	United States	Record daily precipitation	30.2 mm (1.2 in)	33 of 100 (Routine)
Berlin (Sar)	South Africa	Record daily precipitation	102.9 mm (4.1 in)	32 of 100 (Routine)
Heavitree, Estcourt	South Africa	Record daily precipitation	25.9 mm (1.0 in)	32 of 100 (Routine)
Olga 2 SE	United States	Record low minimum temperature	1.7 C (35.1 F)	32 of 100 (Routine)
Pilger	Canada	Record daily precipitation	25.9 mm (1.0 in)	30 of 100 (Routine)
Cezu (Bos)	South Africa	Record daily precipitation	25.4 mm (1.0 in)	30 of 100 (Routine)
Bumping Lake	United States	Record daily snowfall	12.7 cm (5.0 in)	30 of 100 (Routine)
Paauilo 221	United States	Record daily precipitation	80.0 mm (3.1 in)	30 of 100 (Routine)
Baziya (Bos)	South Africa	Record daily precipitation	65.3 mm (2.6 in)	29 of 100 (Routine)
Ngqeleni (Tnk)	South Africa	Record daily precipitation	25.9 mm (1.0 in)	29 of 100 (Routine)
Richmond Chimborazo Pk	United States	Record daily precipitation	32.3 mm (1.3 in)	29 of 100 (Routine)
Reading Wb City	United States	Record daily precipitation	26.7 mm (1.1 in)	29 of 100 (Routine)
Timiryazevskij	Russia	Record daily precipitation	29.4 mm (1.2 in)	28 of 100 (Routine)
Syfergat (Sar)	South Africa	Record daily precipitation	39.4 mm (1.6 in)	28 of 100 (Routine)
Papaikou 144.1	United States	Record daily precipitation	73.4 mm (2.9 in)	28 of 100 (Routine)
Pogranichnyj	Russia	Record daily precipitation	30.3 mm (1.2 in)	27 of 100 (Routine)
Poplar Bluff	United States	Record daily precipitation	47.0 mm (1.9 in)	27 of 100 (Routine)
Maddock	United States	Record daily precipitation	33.0 mm (1.3 in)	27 of 100 (Routine)
Kilmashogue,Lowlands	South Africa	Record daily precipitation	28.7 mm (1.1 in)	26 of 100 (Routine)
Kvikkjokk-Arrenjarka	Sweden	Record low minimum temperature	-10.2 C (13.6 F)	26 of 100 (Routine)
Faulkton	United States	Record daily precipitation	29.2 mm (1.1 in)	26 of 100 (Routine)
Balasore	India	Record daily precipitation	43.2 mm (1.7 in)	25 of 100 (Routine)
Verhojansk	Russia	Record low minimum temperature	-16.7 C (1.9 F)	24 of 100 (Routine)

Counts by Type and Timescale

473 records

Records set or tied on 18 May 1950 by type: Highest daily maximum 8, Lowest daily maximum 68, Highest daily minimum 20, Lowest daily minimum 74, Heaviest daily rainfall 300, Heaviest daily snowfall 3.

Records on 18 May 1950 by type
Record type	Records
Highest daily maximum	8
Lowest daily maximum	68
Highest daily minimum	20
Lowest daily minimum	74
Heaviest daily rainfall	300
Heaviest daily snowfall	3
Deepest snow cover	0

Records on 18 May 1950 by timescale: all-time 0, monthly 12, daily 461.

How Much Records Were Beaten By

406 broken records

Margins by which the 406 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

18 May 1950

Top 20 records on 18 May 1950 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1950	Peddie (Mag), ZA	daily rain	71.1 mm (2.8 in)	47.5 mm (1.9 in)	68 years	67 of 100 (Major)
18 May 1950	Lady Frere (Tnk), ZA	daily rain	38.6 mm (1.5 in)	37.1 mm (1.5 in)	52 years	61 of 100 (Major)
18 May 1950	Adelaide (Pol), ZA	daily rain	47.0 mm (1.9 in)	41.2 mm (1.6 in)	44 years	59 of 100 (Notable)
18 May 1950	Fort Fordyce (Bos), ZA	daily rain	64.8 mm (2.6 in)	55.7 mm (2.2 in)	44 years	58 of 100 (Notable)
18 May 1950	Cata (Bos), ZA	daily rain	50.8 mm (2.0 in)	50.3 mm (2.0 in)	44 years	58 of 100 (Notable)
18 May 1950	Middleburg, ZA	daily rain	40.1 mm (1.6 in)	23.8 mm (0.9 in)	68 years	55 of 100 (Notable)
18 May 1950	Mqanduli (Tnk), ZA	daily rain	25.4 mm (1.0 in)	25.4 mm (1.0 in)	59 years	52 of 100 (Notable)
18 May 1950	Cullendale, ZA	daily rain	38.1 mm (1.5 in)	35.6 mm (1.4 in)	44 years	49 of 100 (Notable)
18 May 1950	Ludlow, ZA	daily rain	34.5 mm (1.4 in)	28.1 mm (1.1 in)	40 years	48 of 100 (Notable)
18 May 1950	Lynch, US	daily rain	51.6 mm (2.0 in)	33.1 mm (1.3 in)	52 years	48 of 100 (Notable)
18 May 1950	Sultanganj, IN	daily rain	43.7 mm (1.7 in)	43.7 mm (1.7 in)	32 years	47 of 100 (Notable)
18 May 1950	Hillmoor, ZA	daily rain	41.4 mm (1.6 in)	35.3 mm (1.4 in)	4 years	46 of 100 (Notable)
18 May 1950	Waterkloof, ZA	daily rain	39.4 mm (1.6 in)	39.4 mm (1.6 in)	32 years	45 of 100 (Notable)
18 May 1950	Tyndall, US	daily rain	53.3 mm (2.1 in)	43.9 mm (1.7 in)	31 years	45 of 100 (Notable)
18 May 1950	Hillside, ZA	daily rain	50.8 mm (2.0 in)	41.9 mm (1.6 in)	4 years	44 of 100 (Notable)
18 May 1950	Weltevrede, ZA	daily rain	33.0 mm (1.3 in)	31.0 mm (1.2 in)	13 years	44 of 100 (Notable)
18 May 1950	Miller, US	daily rain	47.2 mm (1.9 in)	37.3 mm (1.5 in)	12 years	44 of 100 (Notable)
18 May 1950	Rabula (Bos), ZA	monthly rain	106.4 mm (4.2 in)	27.2 mm (1.1 in)	15 years	42 of 100 (Notable)
18 May 1950	Reddersburg (Pol), ZA	daily rain	28.4 mm (1.1 in)	19.8 mm (0.8 in)	39 years	42 of 100 (Notable)
18 May 1950	Willowvale (Tnk), ZA	daily rain	38.4 mm (1.5 in)	30.3 mm (1.2 in)	48 years	41 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

1796 to 1950

Records set or tied on this calendar date in each year from 1796 to 1950. 1950 had 473 records.

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

Records on 05-18 in each year
Year	Records
1796	1
1798	1
1802	2
1832	1
1833	1
1845	1
1847	1
1848	1
1855	1
1859	1
1861	2
1863	3
1864	1
1866	2
1868	2
1869	1
1870	1
1871	2
1872	1
1874	2
1877	4
1878	1
1879	1
1881	1
1883	2
1884	2
1885	1
1887	1
1888	4
1889	2
1891	1
1893	2
1894	4
1895	5
1896	2
1897	2
1898	1
1899	1
1900	13
1901	6
1902	9
1903	7
1904	11
1905	2
1906	24
1907	18
1908	5
1909	12
1910	50
1911	64
1912	5
1913	11
1914	45
1915	55
1916	74
1917	30
1918	42
1919	30
1920	26
1921	41
1922	33
1923	61
1924	92
1925	220
1926	133
1927	180
1928	160
1929	193
1930	475
1931	191
1932	460
1933	380
1934	390
1935	400
1936	282
1937	348
1938	382
1939	169
1940	315
1941	334
1942	421
1943	744
1944	496
1945	706
1946	651
1947	231
1948	426
1949	597
1950	473
1951	279
1952	493
1953	393
1954	498
1955	848
1956	795
1957	595
1958	334
1959	435
1960	404
1961	187
1962	1,199
1963	477
1964	329
1965	345
1966	438
1967	410
1968	817
1969	865
1970	703
1971	666
1972	499
1973	1,233
1974	1,097
1975	383
1976	733
1977	1,126
1978	1,090
1979	399
1980	614
1981	1,218
1982	452
1983	1,093
1984	717
1985	498
1986	1,131
1987	823
1988	1,154
1989	721
1990	753
1991	1,218
1992	921
1993	707
1994	1,015
1995	1,849
1996	1,767
1997	1,115
1998	1,060
1999	584
2000	922
2001	898
2002	1,833
2003	1,270
2004	847
2005	630
2006	1,493
2007	1,133
2008	999
2009	1,368
2010	894
2011	1,406
2012	523
2013	816
2014	609
2015	785
2016	597
2017	1,855
2018	557
2019	810
2020	706
2021	418
2022	711
2023	554
2024	551
2025	619
2026	1,131

Download the Data

Data for records on 1950-05-18: 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 10	292
10 to 20	71
20 to 30	24
30 to 40	8
40 to 50	6
50 to 60	3
60 to 70	1
70 to 80	1