Weather Records on 18 May 1958

334 weather records were set or tied worldwide on 18 May 1958. Highest significance: Devoncourt Station, AU.

Key Facts for 18 May 1958

On 18 May 1958, 334 weather records were set or tied at long-record stations worldwide.
220 were record highs and 26 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 8 monthly and 326 daily.
Devoncourt Station set a daily record precipitation of 47.8 mm (1.9 in) on 18 May 1958.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 443 records.

Record Map

334 stations

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

Weather records on 18 May 1958: highest significance records shown on the map
Station	Country	Type	Value	Significance
Devoncourt Station	Australia	Record daily precipitation	47.8 mm (1.9 in)	58 of 100 (Notable)
Monte Santo	Brazil	Record daily precipitation	50.0 mm (2.0 in)	54 of 100 (Notable)
Pearl River	United States	Record daily precipitation	181.6 mm (7.1 in)	49 of 100 (Notable)
Marinette	United States	Record daily precipitation	45.7 mm (1.8 in)	49 of 100 (Notable)
Poplarville Exp STN	United States	Record daily precipitation	110.7 mm (4.4 in)	45 of 100 (Notable)
Tabl.Mtn Molteno Rsv	South Africa	Record daily precipitation	28.0 mm (1.1 in)	41 of 100 (Notable)
Lake Nash	Australia	Record daily precipitation	47.0 mm (1.9 in)	39 of 100 (Notable)
Sandheads	India	Record daily precipitation	54.7 mm (2.2 in)	39 of 100 (Notable)
Agassiz Cda	Canada	Record high maximum temperature	34.4 C (93.9 F)	36 of 100 (Notable)
Vallam	India	Record daily precipitation	106.7 mm (4.2 in)	36 of 100 (Notable)
Simcoe	Canada	Record high minimum temperature	15.6 C (60.1 F)	34 of 100 (Routine)
Saint John	Canada	Record low maximum temperature	7.8 C (46.0 F)	33 of 100 (Routine)
Reidsville	United States	Record daily precipitation	32.8 mm (1.3 in)	32 of 100 (Routine)
Tasiilaq	Greenland [Denmark]	Record low maximum temperature	-1.6 C (29.1 F)	31 of 100 (Routine)
Concrete Ppl Fish STN	United States	Record high maximum temperature	35.6 C (96.1 F)	30 of 100 (Routine)
Oran-Hopital Militaire	Algeria	Record high maximum temperature	30.0 C (86.0 F)	29 of 100 (Routine)
Paarl (Tnk)	South Africa	Record daily precipitation	30.0 mm (1.2 in)	29 of 100 (Routine)
Pitea	Sweden	Record low maximum temperature	4.4 C (39.9 F)	29 of 100 (Routine)
Roxboro 7 ESE	United States	Record daily precipitation	27.9 mm (1.1 in)	29 of 100 (Routine)
Sevierville	United States	Record daily precipitation	51.3 mm (2.0 in)	29 of 100 (Routine)
Mercedes 6 SSE	United States	Record daily precipitation	43.4 mm (1.7 in)	29 of 100 (Routine)
Olga 2 SE	United States	Record high maximum temperature	28.3 C (82.9 F)	28 of 100 (Routine)
Startup 1 E	United States	Record high maximum temperature	35.6 C (96.1 F)	28 of 100 (Routine)
Charters Towers Post Office	Australia	Record high maximum temperature	32.8 C (91.0 F)	27 of 100 (Routine)
Timiryazevskij	Russia	Record low minimum temperature	-2.3 C (27.9 F)	27 of 100 (Routine)
Portland Rfc City	United States	Record high minimum temperature	17.8 C (64.0 F)	27 of 100 (Routine)
Coolac (Hopewood)	Australia	Record daily precipitation	34.3 mm (1.4 in)	26 of 100 (Routine)
Smoko	Australia	Record daily precipitation	54.1 mm (2.1 in)	26 of 100 (Routine)
Kisinev	Moldova	Record high minimum temperature	17.4 C (63.3 F)	26 of 100 (Routine)
Piaxtla	Mexico	Record daily precipitation	40.9 mm (1.6 in)	26 of 100 (Routine)
Lisboa Geofisica	Portugal	Record high minimum temperature	18.9 C (66.0 F)	26 of 100 (Routine)
Henichesk	Ukraine	Record high maximum temperature	30.0 C (86.0 F)	26 of 100 (Routine)
Mecca Fire STN	United States	Record high minimum temperature	25.0 C (77.0 F)	26 of 100 (Routine)
Stellenbosch (Tnk)	South Africa	Record daily precipitation	40.2 mm (1.6 in)	25 of 100 (Routine)
Indio Fire STN	United States	Record high minimum temperature	26.7 C (80.1 F)	25 of 100 (Routine)
Moores Hill	United States	Record high minimum temperature	22.2 C (72.0 F)	25 of 100 (Routine)
Addison	United States	Record high minimum temperature	16.1 C (61.0 F)	25 of 100 (Routine)
Pickens 1	United States	Record daily precipitation	53.8 mm (2.1 in)	25 of 100 (Routine)
Guarabira	Brazil	Record daily precipitation	44.2 mm (1.7 in)	24 of 100 (Routine)
Feodosiia	Ukraine	Record high maximum temperature	28.7 C (83.7 F)	24 of 100 (Routine)
Farmerville	United States	Record daily precipitation	43.4 mm (1.7 in)	24 of 100 (Routine)
Ogdensburg 4 NE	United States	Record high maximum temperature	30.0 C (86.0 F)	24 of 100 (Routine)
Urbana Wrf	United States	Record high minimum temperature	18.9 C (66.0 F)	24 of 100 (Routine)
Lihue 1020	United States	Record low maximum temperature	24.4 C (75.9 F)	24 of 100 (Routine)
Senador Pompeu	Brazil	Record daily precipitation	36.2 mm (1.4 in)	23 of 100 (Routine)
Babuskin	Russia	Record high minimum temperature	5.0 C (41.0 F)	23 of 100 (Routine)
Truxton Canyon	United States	Record high maximum temperature	35.0 C (95.0 F)	23 of 100 (Routine)
Rayne 6 N	United States	Record daily precipitation	26.7 mm (1.1 in)	23 of 100 (Routine)
Weston	United States	Record daily precipitation	29.2 mm (1.1 in)	23 of 100 (Routine)
Babuskin	Russia	Record high maximum temperature	24.4 C (75.9 F)	22 of 100 (Routine)
Simferopol	Ukraine	Record high maximum temperature	30.5 C (86.9 F)	22 of 100 (Routine)
Ai-Petri	Ukraine	Record high minimum temperature	14.9 C (58.8 F)	22 of 100 (Routine)
Mecca Fire STN	United States	Record high maximum temperature	43.3 C (109.9 F)	22 of 100 (Routine)
Franklin	United States	Record high minimum temperature	15.6 C (60.1 F)	22 of 100 (Routine)
Raymondville	United States	Record low maximum temperature	27.8 C (82.0 F)	22 of 100 (Routine)
Racine Wwtp	United States	Record high minimum temperature	16.1 C (61.0 F)	22 of 100 (Routine)
Yerevan	Armenia	Record high minimum temperature	16.0 C (60.8 F)	21 of 100 (Routine)
Richmond Post Office	Australia	Record high minimum temperature	20.0 C (68.0 F)	21 of 100 (Routine)
Jacampari	Brazil	Record daily precipitation	32.4 mm (1.3 in)	21 of 100 (Routine)
Buzau	Romania	Record high minimum temperature	15.8 C (60.4 F)	21 of 100 (Routine)

Counts by Type and Timescale

334 records

Records set or tied on 18 May 1958 by type: Highest daily maximum 107, Lowest daily maximum 16, Highest daily minimum 113, Lowest daily minimum 10, Heaviest daily rainfall 88.

Records on 18 May 1958 by type
Record type	Records
Highest daily maximum	107
Lowest daily maximum	16
Highest daily minimum	113
Lowest daily minimum	10
Heaviest daily rainfall	88
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 18 May 1958 by timescale: all-time 0, monthly 8, daily 326.

How Much Records Were Beaten By

255 broken records

Margins by which the 255 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 67.5. Ties are not counted.

Top 20 by Significance

18 May 1958

Top 20 records on 18 May 1958 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1958	Devoncourt Station, AU	daily rain	47.8 mm (1.9 in)	45.0 mm (1.8 in)	37 years	58 of 100 (Notable)
18 May 1958	Monte Santo, BR	daily rain	50.0 mm (2.0 in)	29.7 mm (1.2 in)	33 years	54 of 100 (Notable)
18 May 1958	Pearl River, US	monthly rain	181.6 mm (7.1 in)	40.9 mm (1.6 in)	50 years	49 of 100 (Notable)
18 May 1958	Marinette, US	daily rain	45.7 mm (1.8 in)	31.2 mm (1.2 in)	20 years	49 of 100 (Notable)
18 May 1958	Poplarville Exp STN, US	daily rain	110.7 mm (4.4 in)	67.5 mm (2.7 in)	25 years	45 of 100 (Notable)
18 May 1958	Tabl.Mtn Molteno Rsv, ZA	daily rain	28.0 mm (1.1 in)	17.6 mm (0.7 in)	67 years	41 of 100 (Notable)
18 May 1958	Lake Nash, AU	daily rain	47.0 mm (1.9 in)	44.5 mm (1.8 in)	25 years	39 of 100 (Notable)
18 May 1958	Sandheads, IN	daily rain	54.7 mm (2.2 in)	29.3 mm (1.2 in)	48 years	39 of 100 (Notable)
18 May 1958	Agassiz Cda, CA	monthly high max	34.4 C (93.9 F)	0.5 C (0.9 F)	60 years	36 of 100 (Notable)
18 May 1958	Vallam, IN	daily rain	106.7 mm (4.2 in)	35.6 mm (1.4 in)	44 years	36 of 100 (Notable)
18 May 1958	Simcoe, CA	daily high min	15.6 C (60.1 F)	1.2 C (2.2 F)	77 years	34 of 100 (Routine)
18 May 1958	Saint John, CA	daily low max	7.8 C (46.0 F)	0.5 C (0.9 F)	81 years	33 of 100 (Routine)
18 May 1958	Reidsville, US	daily rain	32.8 mm (1.3 in)	14.0 mm (0.6 in)	53 years	32 of 100 (Routine)
18 May 1958	Tasiilaq, GL	daily low max	-1.6 C (29.1 F)	2.5 C (4.5 F)	58 years	31 of 100 (Routine)
18 May 1958	Concrete Ppl Fish STN, US	monthly high max	35.6 C (96.1 F)	1.2 C (2.2 F)	46 years	30 of 100 (Routine)
18 May 1958	Oran-Hopital Militaire, DZ	daily high max	30.0 C (86.0 F)	1.0 C (1.8 F)	56 years	29 of 100 (Routine)
18 May 1958	Paarl (Tnk), ZA	daily rain	30.0 mm (1.2 in)	0.8 mm (0.03 in)	72 years	29 of 100 (Routine)
18 May 1958	Pitea, SE	daily low max	4.4 C (39.9 F)	0.1 C (0.2 F)	73 years	29 of 100 (Routine)
18 May 1958	Roxboro 7 ESE, US	daily rain	27.9 mm (1.1 in)	6.1 mm (0.24 in)	63 years	29 of 100 (Routine)
18 May 1958	Sevierville, US	monthly rain	51.3 mm (2.0 in)	1.5 mm (0.06 in)	44 years	29 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

1796 to 1958

Records set or tied on this calendar date in each year from 1796 to 1958. 1958 had 334 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 1958-05-18: 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 2026-10-16. Last revised 16 October 2026 (2026-10-16).

Margin	Records
0 to 10	232
10 to 20	12
20 to 30	4
30 to 40	3
40 to 50	3
50 to 60	0
60 to 70	1