Weather Records on 18 April 1958

370 weather records were set or tied worldwide on 18 April 1958. Highest significance: Mayaguez City, PR.

Key Facts for 18 April 1958

On 18 April 1958, 370 weather records were set or tied at long-record stations worldwide.
229 were record highs and 29 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 3 monthly and 366 daily.
Mayaguez City set a daily record high minimum temperature of 25.0 C (77.0 F) on 18 April 1958.
Across 160 earlier years (1793 to 2026) the same calendar date averaged 468 records.

Record Map

370 stations

370 station records on 18 April 1958 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 April 1958: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mayaguez City	Puerto Rico [United States]	Record high minimum temperature	25.0 C (77.0 F)	40 of 100 (Notable)
Ballina (Crowley Village)	Australia	Record daily precipitation	69.3 mm (2.7 in)	37 of 100 (Notable)
Baddeck	Canada	Record high maximum temperature	18.3 C (64.9 F)	35 of 100 (Notable)
Snyder	United States	Record daily precipitation	65.8 mm (2.6 in)	35 of 100 (Notable)
Riva	Italy	Record low maximum temperature	10.0 C (50.0 F)	34 of 100 (Routine)
Sable Island	Canada	Record high minimum temperature	7.2 C (45.0 F)	32 of 100 (Routine)
Itabaianinha	Brazil	Record daily precipitation	42.0 mm (1.7 in)	29 of 100 (Routine)
Zugspitze	Germany	Record snow depth	750.0 cm (295.3 in)	29 of 100 (Routine)
Tuscola	United States	Record high maximum temperature	29.4 C (84.9 F)	29 of 100 (Routine)
Cumbalum (Fairview)	Australia	Record daily precipitation	42.9 mm (1.7 in)	28 of 100 (Routine)
Mullumbimby (Fairview Farm)	Australia	Record daily precipitation	40.9 mm (1.6 in)	28 of 100 (Routine)
Durham	Canada	Record high minimum temperature	13.9 C (57.0 F)	28 of 100 (Routine)
Lares	Puerto Rico [United States]	Record high minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Ponce 4 E	Puerto Rico [United States]	Record high minimum temperature	25.0 C (77.0 F)	28 of 100 (Routine)
Port Stanley	Canada	Record high maximum temperature	23.3 C (73.9 F)	27 of 100 (Routine)
Ludington 4 SE	United States	Record high maximum temperature	22.2 C (72.0 F)	27 of 100 (Routine)
Toledo Blade	United States	Record high maximum temperature	30.0 C (86.0 F)	27 of 100 (Routine)
Port Dover	Canada	Record high maximum temperature	22.2 C (72.0 F)	26 of 100 (Routine)
Ridgetown	Canada	Record high minimum temperature	11.7 C (53.1 F)	26 of 100 (Routine)
Collegeville	Canada	Record daily precipitation	30.2 mm (1.2 in)	26 of 100 (Routine)
Oksoey Fyr	Norway	Record low minimum temperature	-1.8 C (28.8 F)	26 of 100 (Routine)
Coloso	Puerto Rico [United States]	Record daily precipitation	91.2 mm (3.6 in)	26 of 100 (Routine)
Ponce 4 E	Puerto Rico [United States]	Record daily precipitation	42.9 mm (1.7 in)	26 of 100 (Routine)
Winamac 2SSE	United States	Record high maximum temperature	29.4 C (84.9 F)	26 of 100 (Routine)
Coloso	Puerto Rico [United States]	Record high minimum temperature	22.8 C (73.0 F)	25 of 100 (Routine)
Palestine	United States	Record high maximum temperature	33.3 C (91.9 F)	25 of 100 (Routine)
Mackinaw City 2	United States	Record high maximum temperature	27.2 C (81.0 F)	25 of 100 (Routine)
Mackinaw City 2	United States	Record high minimum temperature	5.0 C (41.0 F)	25 of 100 (Routine)
Pontiac Wwtp	United States	Record high minimum temperature	13.3 C (55.9 F)	25 of 100 (Routine)
Sheboygan	United States	Record high maximum temperature	29.4 C (84.9 F)	25 of 100 (Routine)
Caguas	Puerto Rico [United States]	Record high minimum temperature	23.3 C (73.9 F)	24 of 100 (Routine)
Telluride 4WNW	United States	Record snow depth	35.6 cm (14.0 in)	24 of 100 (Routine)
Brockport	United States	Record high minimum temperature	13.3 C (55.9 F)	24 of 100 (Routine)
Cooperstown	United States	Record high maximum temperature	26.7 C (80.1 F)	24 of 100 (Routine)
Gloversville	United States	Record high maximum temperature	26.7 C (80.1 F)	24 of 100 (Routine)
Rotan	United States	Record daily precipitation	49.5 mm (1.9 in)	24 of 100 (Routine)
Lufkin Angelina Co AP	United States	Record daily precipitation	25.1 mm (1.0 in)	24 of 100 (Routine)
Petropavlovsk-Kamchatskij	Russia	Record high maximum temperature	6.7 C (44.1 F)	23 of 100 (Routine)
Spier Falls	United States	Record high maximum temperature	25.0 C (77.0 F)	23 of 100 (Routine)
Gillette 3SE	United States	Record high minimum temperature	8.3 C (46.9 F)	23 of 100 (Routine)
Belleville	Canada	Record high maximum temperature	25.6 C (78.1 F)	22 of 100 (Routine)
Montreal McGill	Canada	Record high minimum temperature	13.3 C (55.9 F)	22 of 100 (Routine)
Stillwater	Canada	Record daily precipitation	51.3 mm (2.0 in)	22 of 100 (Routine)
San Bernardino F S 226	United States	Record high minimum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
Watseka Public Works	United States	Record high maximum temperature	29.4 C (84.9 F)	22 of 100 (Routine)
Hillsdale	United States	Record high minimum temperature	13.9 C (57.0 F)	22 of 100 (Routine)
St Bruno	Canada	Record high minimum temperature	11.1 C (52.0 F)	21 of 100 (Routine)
Mont Laurier	Canada	Record high minimum temperature	13.9 C (57.0 F)	21 of 100 (Routine)
Oberstdorf	Germany	Record snow depth	35.0 cm (13.8 in)	21 of 100 (Routine)
Torungen Fyr	Norway	Record low minimum temperature	-2.0 C (28.4 F)	21 of 100 (Routine)
Lares	Puerto Rico [United States]	Record daily precipitation	67.3 mm (2.6 in)	21 of 100 (Routine)
Kjahta	Russia	Record high minimum temperature	5.7 C (42.3 F)	21 of 100 (Routine)
Kalamazoo State Hospital	United States	Record high maximum temperature	27.2 C (81.0 F)	21 of 100 (Routine)
Hemlock	United States	Record high maximum temperature	25.6 C (78.1 F)	21 of 100 (Routine)
Dickinson Exp STN	United States	Record high minimum temperature	7.2 C (45.0 F)	21 of 100 (Routine)
Omak 4 N	United States	Record low maximum temperature	10.6 C (51.1 F)	21 of 100 (Routine)
Worland	United States	Record high minimum temperature	10.0 C (50.0 F)	21 of 100 (Routine)
Prince Albert Road (Sar)	South Africa	Record daily precipitation	12.5 mm (0.5 in)	20 of 100 (Routine)
Saaifontein	South Africa	Record daily precipitation	16.0 mm (0.6 in)	20 of 100 (Routine)
The Pas	Canada	Record daily precipitation	17.8 mm (0.7 in)	20 of 100 (Routine)

Counts by Type and Timescale

370 records

Records set or tied on 18 April 1958 by type: Highest daily maximum 139, Lowest daily maximum 9, Highest daily minimum 90, Lowest daily minimum 20, Heaviest daily rainfall 105, Heaviest daily snowfall 3, Deepest snow cover 4.

Records on 18 April 1958 by type
Record type	Records
Highest daily maximum	139
Lowest daily maximum	9
Highest daily minimum	90
Lowest daily minimum	20
Heaviest daily rainfall	105
Heaviest daily snowfall	3
Deepest snow cover	4

Records on 18 April 1958 by timescale: all-time 1, monthly 3, daily 366.

How Much Records Were Beaten By

296 broken records

Margins by which the 296 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 200.0. Ties are not counted.

Top 20 by Significance

18 April 1958

Top 20 records on 18 April 1958 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 April 1958	Mayaguez City, PR	daily high min	25.0 C (77.0 F)	3.3 C (5.9 F)	55 years	40 of 100 (Notable)
18 April 1958	Ballina (Crowley Village), AU	daily rain	69.3 mm (2.7 in)	40.1 mm (1.6 in)	40 years	37 of 100 (Notable)
18 April 1958	Baddeck, CA	daily high max	18.3 C (64.9 F)	2.2 C (4.0 F)	74 years	35 of 100 (Notable)
18 April 1958	Snyder, US	daily rain	65.8 mm (2.6 in)	28.2 mm (1.1 in)	43 years	35 of 100 (Notable)
18 April 1958	Riva, IT	daily low max	10.0 C (50.0 F)	1.5 C (2.7 F)	70 years	34 of 100 (Routine)
18 April 1958	Sable Island, CA	monthly high min	7.2 C (45.0 F)	0.5 C (0.9 F)	47 years	32 of 100 (Routine)
18 April 1958	Itabaianinha, BR	daily rain	42.0 mm (1.7 in)	16.0 mm (0.6 in)	37 years	29 of 100 (Routine)
18 April 1958	Zugspitze, DE	all-time snow depth	750.0 cm (295.3 in)	20.0 cm (7.9 in)	10 years	29 of 100 (Routine)
18 April 1958	Tuscola, US	daily high max	29.4 C (84.9 F)	2.7 C (4.9 F)	63 years	29 of 100 (Routine)
18 April 1958	Cumbalum (Fairview), AU	daily rain	42.9 mm (1.7 in)	3.3 mm (0.13 in)	68 years	28 of 100 (Routine)
18 April 1958	Mullumbimby (Fairview Farm), AU	daily rain	40.9 mm (1.6 in)	18.5 mm (0.7 in)	53 years	28 of 100 (Routine)
18 April 1958	Durham, CA	daily high min	13.9 C (57.0 F)	2.2 C (4.0 F)	61 years	28 of 100 (Routine)
18 April 1958	Lares, PR	daily high min	21.7 C (71.1 F)	2.8 C (5.0 F)	28 years	28 of 100 (Routine)
18 April 1958	Ponce 4 E, PR	daily high min	25.0 C (77.0 F)	1.1 C (2.0 F)	55 years	28 of 100 (Routine)
18 April 1958	Port Stanley, CA	daily high max	23.3 C (73.9 F)	3.9 C (7.0 F)	40 years	27 of 100 (Routine)
18 April 1958	Ludington 4 SE, US	daily high max	22.2 C (72.0 F)	3.9 C (7.0 F)	52 years	27 of 100 (Routine)
18 April 1958	Toledo Blade, US	daily high max	30.0 C (86.0 F)	1.1 C (2.0 F)	61 years	27 of 100 (Routine)
18 April 1958	Port Dover, CA	daily high max	22.2 C (72.0 F)	0.5 C (0.9 F)	61 years	26 of 100 (Routine)
18 April 1958	Ridgetown, CA	daily high min	11.7 C (53.1 F)	0.6 C (1.1 F)	61 years	26 of 100 (Routine)
18 April 1958	Collegeville, CA	daily rain	30.2 mm (1.2 in)	17.0 mm (0.7 in)	19 years	26 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

1793 to 1958

Records set or tied on this calendar date in each year from 1793 to 1958. 1958 had 370 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 1958-04-18: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 25	290
25 to 50	2
50 to 75	2
75 to 100	0
100 to 125	1
125 to 150	0
150 to 175	0
175 to 200	1