Weather Records on 18 May 1969

865 weather records were set or tied worldwide on 18 May 1969. Highest significance: Addanki, IN.

Key Facts for 18 May 1969

On 18 May 1969, 865 weather records were set or tied at long-record stations worldwide.
114 were record highs and 219 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 31 monthly and 831 daily.
Addanki set an all-time record daily precipitation of 296.6 mm (11.7 in) on 18 May 1969.
Across 164 earlier years (1796 to 2026) the same calendar date averaged 440 records.

Record Map

865 stations

865 station records on 18 May 1969 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 May 1969: highest significance records shown on the map
Station	Country	Type	Value	Significance
Addanki	India	Record daily precipitation	296.6 mm (11.7 in)	77 of 100 (Major)
Chinaganjam	India	Record daily precipitation	311.5 mm (12.3 in)	70 of 100 (Major)
Findlay Wpcc	United States	Record daily precipitation	77.5 mm (3.1 in)	69 of 100 (Major)
Vinga	Sweden	Record daily precipitation	31.7 mm (1.2 in)	65 of 100 (Major)
Hamelin Pool	Australia	Record daily precipitation	61.7 mm (2.4 in)	62 of 100 (Major)
Venukonda	India	Record daily precipitation	125.0 mm (4.9 in)	61 of 100 (Major)
Saint Leo	United States	Record daily precipitation	71.1 mm (2.8 in)	61 of 100 (Major)
Murgoo	Australia	Record daily precipitation	56.6 mm (2.2 in)	60 of 100 (Major)
Wooleen	Australia	Record daily precipitation	61.2 mm (2.4 in)	59 of 100 (Notable)
Sathenapalli	India	Record daily precipitation	129.4 mm (5.1 in)	59 of 100 (Notable)
Gannavaram	India	Record daily precipitation	110.2 mm (4.3 in)	59 of 100 (Notable)
Oberlin	United States	Record daily precipitation	48.3 mm (1.9 in)	59 of 100 (Notable)
Wydgee	Australia	Record daily precipitation	53.1 mm (2.1 in)	58 of 100 (Notable)
Tullahoma	United States	Record daily precipitation	84.3 mm (3.3 in)	58 of 100 (Notable)
Burnerbinmah	Australia	Record daily precipitation	45.0 mm (1.8 in)	57 of 100 (Notable)
St Thomas	Canada	Record daily precipitation	52.1 mm (2.1 in)	57 of 100 (Notable)
Tamala	Australia	Record daily precipitation	69.6 mm (2.7 in)	56 of 100 (Notable)
Wooramel	Australia	Record daily precipitation	68.8 mm (2.7 in)	56 of 100 (Notable)
Ridgetown	Canada	Record daily precipitation	61.2 mm (2.4 in)	56 of 100 (Notable)
Darsi	India	Record daily precipitation	132.4 mm (5.2 in)	56 of 100 (Notable)
Denham	Australia	Record daily precipitation	77.0 mm (3.0 in)	55 of 100 (Notable)
Yallalong	Australia	Record daily precipitation	45.2 mm (1.8 in)	55 of 100 (Notable)
Tenindewa	Australia	Record daily precipitation	57.9 mm (2.3 in)	55 of 100 (Notable)
Gudivada	India	Record daily precipitation	96.2 mm (3.8 in)	55 of 100 (Notable)
Newport	United States	Record daily precipitation	90.4 mm (3.6 in)	55 of 100 (Notable)
Tenindewa Bindu	Australia	Record daily precipitation	52.3 mm (2.1 in)	54 of 100 (Notable)
Montreal McGill	Canada	Record daily precipitation	43.4 mm (1.7 in)	54 of 100 (Notable)
Woodleigh	Australia	Record daily precipitation	76.2 mm (3.0 in)	53 of 100 (Notable)
Binnu	Australia	Record daily precipitation	67.6 mm (2.7 in)	53 of 100 (Notable)
Morawa	Australia	Record daily precipitation	46.7 mm (1.8 in)	53 of 100 (Notable)
Yuna	Australia	Record daily precipitation	55.4 mm (2.2 in)	53 of 100 (Notable)
Meadow Station	Australia	Record daily precipitation	61.0 mm (2.4 in)	52 of 100 (Notable)
Yarrabubba	Australia	Record daily precipitation	50.3 mm (2.0 in)	52 of 100 (Notable)
Ogilvie	Australia	Record daily precipitation	55.4 mm (2.2 in)	52 of 100 (Notable)
Sunderland	Australia	Record daily precipitation	55.4 mm (2.2 in)	52 of 100 (Notable)
Harrisburg	United States	Record daily precipitation	158.8 mm (6.3 in)	52 of 100 (Notable)
Cleveland	United States	Record daily precipitation	63.0 mm (2.5 in)	52 of 100 (Notable)
Lakeside	Australia	Record daily precipitation	38.1 mm (1.5 in)	51 of 100 (Notable)
Rajahmundry	India	Record daily precipitation	74.2 mm (2.9 in)	51 of 100 (Notable)
Vijayawada	India	Record daily precipitation	132.4 mm (5.2 in)	51 of 100 (Notable)
Kyelong Obsy	India	Record daily precipitation	39.0 mm (1.5 in)	51 of 100 (Notable)
S Haven	United States	Record daily precipitation	51.8 mm (2.0 in)	51 of 100 (Notable)
Upper Sandusky	United States	Record daily precipitation	56.4 mm (2.2 in)	51 of 100 (Notable)
Nardy	Australia	Record daily precipitation	27.4 mm (1.1 in)	50 of 100 (Notable)
Bloomfield	Canada	Record daily precipitation	42.7 mm (1.7 in)	50 of 100 (Notable)
Jaggiayapet	India	Record daily precipitation	57.4 mm (2.3 in)	50 of 100 (Notable)
Fulton L&D #13	United States	Record daily precipitation	50.8 mm (2.0 in)	50 of 100 (Notable)
Corry	United States	Record daily precipitation	48.3 mm (1.9 in)	50 of 100 (Notable)
Southbourne	Australia	Record daily precipitation	35.3 mm (1.4 in)	49 of 100 (Notable)
Macharla	India	Record daily precipitation	55.0 mm (2.2 in)	49 of 100 (Notable)
Tiffin	United States	Record daily precipitation	46.2 mm (1.8 in)	49 of 100 (Notable)
Gleneva	Australia	Record daily precipitation	53.8 mm (2.1 in)	48 of 100 (Notable)
Leamington	Canada	Record daily precipitation	64.0 mm (2.5 in)	48 of 100 (Notable)
Trenton Ont Hydro	Canada	Record daily precipitation	50.0 mm (2.0 in)	48 of 100 (Notable)
Scottsboro	United States	Record daily precipitation	54.6 mm (2.1 in)	48 of 100 (Notable)
Perangery	Australia	Record daily precipitation	52.6 mm (2.1 in)	47 of 100 (Notable)
Kookynie	Australia	Record daily precipitation	29.2 mm (1.1 in)	47 of 100 (Notable)
Belleville	Canada	Record daily precipitation	62.0 mm (2.4 in)	47 of 100 (Notable)
Polavaram	India	Record daily precipitation	85.0 mm (3.3 in)	47 of 100 (Notable)
Narsipatnam	India	Record daily precipitation	141.0 mm (5.6 in)	47 of 100 (Notable)

Counts by Type and Timescale

865 records

Records set or tied on 18 May 1969 by type: Highest daily maximum 41, Lowest daily maximum 146, Highest daily minimum 73, Lowest daily minimum 73, Heaviest daily rainfall 526, Heaviest daily snowfall 6.

Records on 18 May 1969 by type
Record type	Records
Highest daily maximum	41
Lowest daily maximum	146
Highest daily minimum	73
Lowest daily minimum	73
Heaviest daily rainfall	526
Heaviest daily snowfall	6
Deepest snow cover	0

Records on 18 May 1969 by timescale: all-time 3, monthly 31, daily 831.

How Much Records Were Beaten By

760 broken records

Margins by which the 760 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 125.8. Ties are not counted.

Top 20 by Significance

18 May 1969

Top 20 records on 18 May 1969 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 May 1969	Addanki, IN	all-time rain	296.6 mm (11.7 in)	61.1 mm (2.4 in)	41 years	77 of 100 (Major)
18 May 1969	Chinaganjam, IN	all-time rain	311.5 mm (12.3 in)	53.7 mm (2.1 in)	51 years	70 of 100 (Major)
18 May 1969	Findlay Wpcc, US	daily rain	77.5 mm (3.1 in)	55.9 mm (2.2 in)	74 years	69 of 100 (Major)
18 May 1969	Vinga, SE	daily rain	31.7 mm (1.2 in)	15.7 mm (0.6 in)	67 years	65 of 100 (Major)
18 May 1969	Hamelin Pool, AU	daily rain	61.7 mm (2.4 in)	47.5 mm (1.9 in)	47 years	62 of 100 (Major)
18 May 1969	Venukonda, IN	monthly rain	125.0 mm (4.9 in)	51.8 mm (2.0 in)	16 years	61 of 100 (Major)
18 May 1969	Saint Leo, US	daily rain	71.1 mm (2.8 in)	52.0 mm (2.0 in)	72 years	61 of 100 (Major)
18 May 1969	Murgoo, AU	daily rain	56.6 mm (2.2 in)	36.5 mm (1.4 in)	43 years	60 of 100 (Major)
18 May 1969	Wooleen, AU	daily rain	61.2 mm (2.4 in)	41.4 mm (1.6 in)	43 years	59 of 100 (Notable)
18 May 1969	Sathenapalli, IN	monthly rain	129.4 mm (5.1 in)	42.8 mm (1.7 in)	44 years	59 of 100 (Notable)
18 May 1969	Gannavaram, IN	daily rain	110.2 mm (4.3 in)	80.5 mm (3.2 in)	46 years	59 of 100 (Notable)
18 May 1969	Oberlin, US	daily rain	48.3 mm (1.9 in)	26.7 mm (1.1 in)	74 years	59 of 100 (Notable)
18 May 1969	Wydgee, AU	daily rain	53.1 mm (2.1 in)	42.4 mm (1.7 in)	43 years	58 of 100 (Notable)
18 May 1969	Tullahoma, US	daily rain	84.3 mm (3.3 in)	50.0 mm (2.0 in)	39 years	58 of 100 (Notable)
18 May 1969	Burnerbinmah, AU	daily rain	45.0 mm (1.8 in)	29.5 mm (1.2 in)	48 years	57 of 100 (Notable)
18 May 1969	St Thomas, CA	daily rain	52.1 mm (2.1 in)	32.8 mm (1.3 in)	31 years	57 of 100 (Notable)
18 May 1969	Tamala, AU	daily rain	69.6 mm (2.7 in)	53.6 mm (2.1 in)	32 years	56 of 100 (Notable)
18 May 1969	Wooramel, AU	daily rain	68.8 mm (2.7 in)	52.3 mm (2.1 in)	32 years	56 of 100 (Notable)
18 May 1969	Ridgetown, CA	daily rain	61.2 mm (2.4 in)	23.1 mm (0.9 in)	74 years	56 of 100 (Notable)
18 May 1969	Darsi, IN	monthly rain	132.4 mm (5.2 in)	66.4 mm (2.6 in)	3 years	56 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 1969

Records set or tied on this calendar date in each year from 1796 to 1969. 1969 had 865 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 1969-05-18: 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 20	609
20 to 40	109
40 to 60	30
60 to 80	7
80 to 100	4
100 to 120	0
120 to 140	1