Weather Records on 18 April 1948

932 weather records were set or tied worldwide on 18 April 1948. Highest significance: Peddie (Mag), ZA.

Key Facts for 18 April 1948

On 18 April 1948, 932 weather records were set or tied at long-record stations worldwide.
615 were record highs and 88 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 30 monthly and 901 daily.
Peddie (Mag) set a daily record precipitation of 50.8 mm (2.0 in) on 18 April 1948.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 464 records.

Record Map

932 stations

932 station records on 18 April 1948 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1948: highest significance records shown on the map
Station	Country	Type	Value	Significance
Peddie (Mag)	South Africa	Record daily precipitation	50.8 mm (2.0 in)	63 of 100 (Major)
Isidinge (Bos)	South Africa	Record daily precipitation	68.6 mm (2.7 in)	63 of 100 (Major)
Kentani (Bos)	South Africa	Record daily precipitation	97.3 mm (3.8 in)	63 of 100 (Major)
Cullendale	South Africa	Record daily precipitation	133.4 mm (5.3 in)	60 of 100 (Major)
Keilands	South Africa	Record daily precipitation	43.7 mm (1.7 in)	59 of 100 (Notable)
Elliotdale (Tnk)	South Africa	Record daily precipitation	78.0 mm (3.1 in)	59 of 100 (Notable)
Welgelegen(Middlemnt	South Africa	Record daily precipitation	44.5 mm (1.8 in)	57 of 100 (Notable)
Komga (Pol)	South Africa	Record daily precipitation	51.1 mm (2.0 in)	56 of 100 (Notable)
Kologha (Bos)	South Africa	Record daily precipitation	107.4 mm (4.2 in)	52 of 100 (Notable)
Willowvale (Tnk)	South Africa	Record daily precipitation	113.0 mm (4.4 in)	51 of 100 (Notable)
Middleburg	South Africa	Record daily precipitation	30.0 mm (1.2 in)	51 of 100 (Notable)
Kareekloof	South Africa	Record daily precipitation	43.2 mm (1.7 in)	51 of 100 (Notable)
Fredrikstad (Sar)	South Africa	Record daily precipitation	36.8 mm (1.4 in)	50 of 100 (Notable)
Hebgen Dam	United States	Record daily snowfall	17.8 cm (7.0 in)	50 of 100 (Notable)
Qacu (Bos)	South Africa	Record daily precipitation	53.6 mm (2.1 in)	49 of 100 (Notable)
Pirie (Bos)	South Africa	Record daily precipitation	38.4 mm (1.5 in)	45 of 100 (Notable)
Dontsa	South Africa	Record daily precipitation	36.1 mm (1.4 in)	43 of 100 (Notable)
Balfour (Pol)	South Africa	Record daily precipitation	79.8 mm (3.1 in)	42 of 100 (Notable)
Hopewell	South Africa	Record daily precipitation	63.0 mm (2.5 in)	42 of 100 (Notable)
Mqanduli (Tnk)	South Africa	Record daily precipitation	72.4 mm (2.9 in)	41 of 100 (Notable)
Campbell (Mun)	South Africa	Record daily precipitation	38.1 mm (1.5 in)	41 of 100 (Notable)
Kubusie (Bos)	South Africa	Record daily precipitation	43.2 mm (1.7 in)	39 of 100 (Notable)
Mnt Fletcher (Tnk)	South Africa	Record daily precipitation	38.4 mm (1.5 in)	39 of 100 (Notable)
Nordby (Fano)	Denmark	Record high maximum temperature	22.5 C (72.5 F)	37 of 100 (Notable)
Sekoni	India	Record daily precipitation	63.0 mm (2.5 in)	37 of 100 (Notable)
Altastenberg	Germany	Record high minimum temperature	11.8 C (53.2 F)	34 of 100 (Routine)
Putbus	Germany	Record high maximum temperature	20.5 C (68.9 F)	34 of 100 (Routine)
Wrixum/Fohr	Germany	Record high maximum temperature	21.5 C (70.7 F)	34 of 100 (Routine)
Wolfridge (Bos)	South Africa	Record daily precipitation	34.0 mm (1.3 in)	34 of 100 (Routine)
Petrusville (Pol)	South Africa	Record daily precipitation	25.4 mm (1.0 in)	34 of 100 (Routine)
Potchefstroom Upper	South Africa	Record daily precipitation	34.5 mm (1.4 in)	34 of 100 (Routine)
Kowanyama Airport	Australia	Record daily precipitation	48.3 mm (1.9 in)	33 of 100 (Routine)
Koebenhavn: Landbohojskolen-1	Denmark	Record high maximum temperature	20.9 C (69.6 F)	33 of 100 (Routine)
Lakin	United States	Record high maximum temperature	37.8 C (100.0 F)	33 of 100 (Routine)
Greatfish-Point Vrt	South Africa	Record daily precipitation	30.4 mm (1.2 in)	31 of 100 (Routine)
Fort Fordyce (Bos)	South Africa	Record daily precipitation	48.3 mm (1.9 in)	31 of 100 (Routine)
Esperanza	South Africa	Record daily precipitation	25.4 mm (1.0 in)	31 of 100 (Routine)
Vredefort (Skl)	South Africa	Record daily precipitation	35.6 mm (1.4 in)	31 of 100 (Routine)
Roodepoort (Mun)	South Africa	Record daily precipitation	74.7 mm (2.9 in)	31 of 100 (Routine)
Johnson 11 ESE	United States	Record high maximum temperature	35.6 C (96.1 F)	31 of 100 (Routine)
Cody	United States	Record daily precipitation	25.9 mm (1.0 in)	31 of 100 (Routine)
Mochudi	Botswana	Record daily precipitation	29.2 mm (1.1 in)	30 of 100 (Routine)
Kulgam	India	Record daily precipitation	53.3 mm (2.1 in)	30 of 100 (Routine)
Kaallaagte	South Africa	Record daily precipitation	29.0 mm (1.1 in)	29 of 100 (Routine)
Harnosand	Sweden	Record high maximum temperature	20.0 C (68.0 F)	29 of 100 (Routine)
Oestersund-Froesoen	Sweden	Record high maximum temperature	17.5 C (63.5 F)	29 of 100 (Routine)
New Iberia AP - Acadiana Rgnl	United States	Record high maximum temperature	33.3 C (91.9 F)	29 of 100 (Routine)
Bremen-Seefahrtschule	Germany	Record high maximum temperature	25.6 C (78.1 F)	28 of 100 (Routine)
Husum	Germany	Record high maximum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Lubeck-Werft	Germany	Record high maximum temperature	26.0 C (78.8 F)	28 of 100 (Routine)
Putbus	Germany	Record high minimum temperature	9.3 C (48.7 F)	28 of 100 (Routine)
Alipurduar	India	Record daily precipitation	42.2 mm (1.7 in)	28 of 100 (Routine)
Hastings 4N	United States	Record high minimum temperature	16.7 C (62.1 F)	28 of 100 (Routine)
Satara	India	Record daily precipitation	27.9 mm (1.1 in)	27 of 100 (Routine)
Bronkhorstfontein	South Africa	Record daily precipitation	36.1 mm (1.4 in)	27 of 100 (Routine)
Val (Sar)	South Africa	Record daily precipitation	26.7 mm (1.1 in)	27 of 100 (Routine)
Jokkmokk	Sweden	Record high maximum temperature	10.0 C (50.0 F)	27 of 100 (Routine)
Horton	United States	Record high minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Beatrice	United States	Record high minimum temperature	18.3 C (64.9 F)	27 of 100 (Routine)
Sihota	South Africa	Record daily precipitation	66.5 mm (2.6 in)	26 of 100 (Routine)

Counts by Type and Timescale

932 records

Records set or tied on 18 April 1948 by type: Highest daily maximum 402, Lowest daily maximum 18, Highest daily minimum 213, Lowest daily minimum 70, Heaviest daily rainfall 222, Heaviest daily snowfall 6, Deepest snow cover 1.

Records on 18 April 1948 by type
Record type	Records
Highest daily maximum	402
Lowest daily maximum	18
Highest daily minimum	213
Lowest daily minimum	70
Heaviest daily rainfall	222
Heaviest daily snowfall	6
Deepest snow cover	1

Records on 18 April 1948 by timescale: all-time 1, monthly 30, daily 901.

How Much Records Were Beaten By

794 broken records

Margins by which the 794 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 1300.0. Ties are not counted.

Top 20 by Significance

18 April 1948

Top 20 records on 18 April 1948 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1948	Peddie (Mag), ZA	daily rain	50.8 mm (2.0 in)	40.6 mm (1.6 in)	54 years	63 of 100 (Major)
18 April 1948	Isidinge (Bos), ZA	daily rain	68.6 mm (2.7 in)	52.6 mm (2.1 in)	59 years	63 of 100 (Major)
18 April 1948	Kentani (Bos), ZA	daily rain	97.3 mm (3.8 in)	82.1 mm (3.2 in)	57 years	63 of 100 (Major)
18 April 1948	Cullendale, ZA	all-time rain	133.4 mm (5.3 in)	18.1 mm (0.7 in)	58 years	60 of 100 (Major)
18 April 1948	Keilands, ZA	daily rain	43.7 mm (1.7 in)	34.0 mm (1.3 in)	56 years	59 of 100 (Notable)
18 April 1948	Elliotdale (Tnk), ZA	daily rain	78.0 mm (3.1 in)	52.1 mm (2.1 in)	48 years	59 of 100 (Notable)
18 April 1948	Welgelegen(Middlemnt, ZA	daily rain	44.5 mm (1.8 in)	34.3 mm (1.4 in)	50 years	57 of 100 (Notable)
18 April 1948	Komga (Pol), ZA	daily rain	51.1 mm (2.0 in)	43.7 mm (1.7 in)	48 years	56 of 100 (Notable)
18 April 1948	Kologha (Bos), ZA	monthly rain	107.4 mm (4.2 in)	18.0 mm (0.7 in)	61 years	52 of 100 (Notable)
18 April 1948	Willowvale (Tnk), ZA	monthly rain	113.0 mm (4.4 in)	27.7 mm (1.1 in)	55 years	51 of 100 (Notable)
18 April 1948	Middleburg, ZA	daily rain	30.0 mm (1.2 in)	19.6 mm (0.8 in)	57 years	51 of 100 (Notable)
18 April 1948	Kareekloof, ZA	daily rain	43.2 mm (1.7 in)	30.5 mm (1.2 in)	41 years	51 of 100 (Notable)
18 April 1948	Fredrikstad (Sar), ZA	daily rain	36.8 mm (1.4 in)	34.3 mm (1.4 in)	38 years	50 of 100 (Notable)
18 April 1948	Hebgen Dam, US	daily snowfall	17.8 cm (7.0 in)	15.3 cm (6.0 in)	41 years	50 of 100 (Notable)
18 April 1948	Qacu (Bos), ZA	daily rain	53.6 mm (2.1 in)	37.1 mm (1.5 in)	10 years	49 of 100 (Notable)
18 April 1948	Pirie (Bos), ZA	daily rain	38.4 mm (1.5 in)	23.9 mm (0.9 in)	60 years	45 of 100 (Notable)
18 April 1948	Dontsa, ZA	daily rain	36.1 mm (1.4 in)	24.7 mm (1.0 in)	41 years	43 of 100 (Notable)
18 April 1948	Balfour (Pol), ZA	monthly rain	79.8 mm (3.1 in)	21.4 mm (0.8 in)	4 years	42 of 100 (Notable)
18 April 1948	Hopewell, ZA	daily rain	63.0 mm (2.5 in)	49.5 mm (1.9 in)	10 years	42 of 100 (Notable)
18 April 1948	Mqanduli (Tnk), ZA	monthly rain	72.4 mm (2.9 in)	8.9 mm (0.35 in)	55 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

1793 to 1948

Records set or tied on this calendar date in each year from 1793 to 1948. 1948 had 932 records.

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

Records on 04-18 in each year
Year	Records
1793	1
1807	2
1815	1
1838	1
1847	1
1849	1
1851	1
1852	3
1854	3
1855	1
1865	4
1867	1
1870	1
1871	1
1875	4
1877	2
1878	1
1879	3
1880	2
1884	2
1886	2
1887	3
1888	1
1889	1
1890	2
1891	1
1892	3
1893	5
1894	7
1895	2
1896	3
1897	5
1898	8
1899	2
1900	2
1901	6
1902	5
1903	11
1904	9
1905	12
1906	18
1907	17
1908	37
1909	19
1910	19
1911	25
1912	21
1913	26
1914	38
1915	31
1916	22
1917	40
1918	76
1919	16
1920	64
1921	58
1922	85
1923	107
1924	101
1925	154
1926	322
1927	391
1928	323
1929	126
1930	113
1931	173
1932	326
1933	211
1934	391
1935	264
1936	483
1937	477
1938	711
1939	525
1940	322
1941	496
1942	287
1943	298
1944	259
1945	371
1946	357
1947	444
1948	932
1949	345
1950	244
1951	658
1952	536
1953	1,322
1954	442
1955	817
1956	467
1957	629
1958	370
1959	468
1960	320
1961	520
1962	484
1963	662
1964	449
1965	363
1966	776
1967	882
1968	867
1969	795
1970	771
1971	1,106
1972	470
1973	953
1974	326
1975	751
1976	1,309
1977	717
1978	803
1979	841
1980	842
1981	708
1982	616
1983	2,082
1984	625
1985	1,119
1986	622
1987	1,068
1988	936
1989	625
1990	1,368
1991	780
1992	702
1993	730
1994	1,218
1995	1,601
1996	826
1997	1,256
1998	1,011
1999	1,428
2000	912
2001	1,487
2002	2,084
2003	969
2004	846
2005	622
2006	1,262
2007	675
2008	913
2009	624
2010	478
2011	1,122
2012	744
2013	2,509
2014	534
2015	519
2016	973
2017	588
2018	1,202
2019	601
2020	770
2021	592
2022	1,013
2023	739
2024	641
2025	997
2026	498

Download the Data

Data for records on 1948-04-18: 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 200	793
200 to 400	0
400 to 600	0
600 to 800	0
800 to 1000	0
1000 to 1200	0
1200 to 1400	1