Weather Records on 18 March 1966

540 weather records were set or tied worldwide on 18 March 1966. Highest significance: Broken Hill (Kars), AU.

Key Facts for 18 March 1966

On 18 March 1966, 540 weather records were set or tied at long-record stations worldwide.
335 were record highs and 45 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 4 monthly and 536 daily.
Broken Hill (Kars) set a daily record precipitation of 27.9 mm (1.1 in) on 18 March 1966.
Across 160 earlier years (1806 to 2026) the same calendar date averaged 477 records.

Record Map

540 stations

540 station records on 18 March 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 18 March 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Broken Hill (Kars)	Australia	Record daily precipitation	27.9 mm (1.1 in)	51 of 100 (Notable)
Rockbank	Australia	Record daily precipitation	50.8 mm (2.0 in)	47 of 100 (Notable)
Oran-Hopital Militaire	Algeria	Record low minimum temperature	3.0 C (37.4 F)	45 of 100 (Notable)
Quilcene 2 SW	United States	Record daily precipitation	70.1 mm (2.8 in)	43 of 100 (Notable)
Toledo 3N	United States	Record daily precipitation	26.4 mm (1.0 in)	41 of 100 (Notable)
Independence	United States	Record daily precipitation	32.3 mm (1.3 in)	40 of 100 (Notable)
Pembroke Eddy Match	Canada	Record high maximum temperature	16.1 C (61.0 F)	38 of 100 (Notable)
Ignace	Canada	Record daily snowfall	27.9 cm (11.0 in)	37 of 100 (Notable)
Huntingdon	Canada	Record high maximum temperature	14.4 C (57.9 F)	37 of 100 (Notable)
Escanaba	United States	Record high minimum temperature	2.8 C (37.0 F)	37 of 100 (Notable)
Chimacum 4 S	United States	Record daily precipitation	34.5 mm (1.4 in)	36 of 100 (Notable)
Marshfield Exp Farm	United States	Record daily precipitation	26.4 mm (1.0 in)	36 of 100 (Notable)
Viroqua	United States	Record daily precipitation	29.2 mm (1.1 in)	36 of 100 (Notable)
Ignace	Canada	Record daily precipitation	27.9 mm (1.1 in)	35 of 100 (Notable)
Kaslo	Canada	Record daily snowfall	7.6 cm (3.0 in)	34 of 100 (Routine)
Cambridge Galt Moe	Canada	Record high minimum temperature	3.3 C (37.9 F)	34 of 100 (Routine)
Ramanagar	India	Record daily precipitation	61.3 mm (2.4 in)	34 of 100 (Routine)
Southampton	Canada	Record high minimum temperature	6.7 C (44.1 F)	33 of 100 (Routine)
Toronto	Canada	Record high maximum temperature	18.3 C (64.9 F)	33 of 100 (Routine)
Bancroft	Canada	Record high maximum temperature	17.2 C (63.0 F)	33 of 100 (Routine)
Mazbat(Majbat)	India	Record daily precipitation	26.7 mm (1.1 in)	33 of 100 (Routine)
Lowell	United States	Record high maximum temperature	18.9 C (66.0 F)	33 of 100 (Routine)
Gaylord	United States	Record high minimum temperature	5.6 C (42.1 F)	33 of 100 (Routine)
Grafton	United States	Record high maximum temperature	17.2 C (63.0 F)	33 of 100 (Routine)
Burketown Post Office	Australia	Record high maximum temperature	38.9 C (102.0 F)	32 of 100 (Routine)
Pooncarie (Wilkurra)	Australia	Record daily precipitation	35.6 mm (1.4 in)	32 of 100 (Routine)
Waneta	Canada	Record daily snowfall	5.1 cm (2.0 in)	32 of 100 (Routine)
Brockport	United States	Record high maximum temperature	23.9 C (75.0 F)	32 of 100 (Routine)
Manitowoc	United States	Record high minimum temperature	5.6 C (42.1 F)	32 of 100 (Routine)
Griffiss AFB	United States	Record high maximum temperature	20.0 C (68.0 F)	32 of 100 (Routine)
Binghamton Wb City	United States	Record high maximum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Fauquier	Canada	Record daily snowfall	8.9 cm (3.5 in)	31 of 100 (Routine)
Lucknow	Canada	Record high minimum temperature	6.7 C (44.1 F)	31 of 100 (Routine)
Independence #1	United States	Record daily precipitation	25.9 mm (1.0 in)	31 of 100 (Routine)
Middletown 2 NW	United States	Record high maximum temperature	18.9 C (66.0 F)	31 of 100 (Routine)
Westfield 2 SSE	United States	Record high minimum temperature	6.1 C (43.0 F)	31 of 100 (Routine)
El-Golea	Algeria	Record low minimum temperature	1.8 C (35.2 F)	30 of 100 (Routine)
Manistique Wwtp	United States	Record high minimum temperature	3.9 C (39.0 F)	30 of 100 (Routine)
Waterville	United States	Record daily snowfall	7.6 cm (3.0 in)	30 of 100 (Routine)
Cameron Lake	Canada	Record daily snowfall	6.4 cm (2.5 in)	29 of 100 (Routine)
Norway House	Canada	Record daily snowfall	7.1 cm (2.8 in)	29 of 100 (Routine)
Collingwood	Canada	Record high maximum temperature	17.8 C (64.0 F)	29 of 100 (Routine)
Durham	Canada	Record high minimum temperature	4.4 C (39.9 F)	29 of 100 (Routine)
Pelee Island	Canada	Record high minimum temperature	5.0 C (41.0 F)	29 of 100 (Routine)
Traverse Cy Cherry Capital AP	United States	Record high minimum temperature	5.6 C (42.1 F)	29 of 100 (Routine)
Vinton	United States	Record daily precipitation	28.7 mm (1.1 in)	28 of 100 (Routine)
Lowell	United States	Record high minimum temperature	3.9 C (39.0 F)	28 of 100 (Routine)
Alma	United States	Record high minimum temperature	6.7 C (44.1 F)	28 of 100 (Routine)
Gaylord	United States	Record high maximum temperature	18.3 C (64.9 F)	28 of 100 (Routine)
Ishpeming	United States	Record high minimum temperature	2.2 C (36.0 F)	28 of 100 (Routine)
Alfred	United States	Record high maximum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Oswego	United States	Record high maximum temperature	22.2 C (72.0 F)	28 of 100 (Routine)
Plattsburgh AFB	United States	Record high minimum temperature	2.2 C (36.0 F)	28 of 100 (Routine)
Cadiz	United States	Record high maximum temperature	24.4 C (75.9 F)	28 of 100 (Routine)
Antigo	United States	Record high maximum temperature	18.9 C (66.0 F)	28 of 100 (Routine)
Racine Wwtp	United States	Record high minimum temperature	6.1 C (43.0 F)	28 of 100 (Routine)
Shawano 2SSW	United States	Record high maximum temperature	19.4 C (66.9 F)	28 of 100 (Routine)
West Bend	United States	Record high minimum temperature	3.9 C (39.0 F)	28 of 100 (Routine)
Srinagar	India	Record daily precipitation	43.4 mm (1.7 in)	27 of 100 (Routine)
Westernport	United States	Record high maximum temperature	26.1 C (79.0 F)	27 of 100 (Routine)

Counts by Type and Timescale

540 records

Records set or tied on 18 March 1966 by type: Highest daily maximum 185, Lowest daily maximum 24, Highest daily minimum 150, Lowest daily minimum 21, Heaviest daily rainfall 134, Heaviest daily snowfall 23, Deepest snow cover 3.

Records on 18 March 1966 by type
Record type	Records
Highest daily maximum	185
Lowest daily maximum	24
Highest daily minimum	150
Lowest daily minimum	21
Heaviest daily rainfall	134
Heaviest daily snowfall	23
Deepest snow cover	3

Records on 18 March 1966 by timescale: all-time 0, monthly 4, daily 536.

How Much Records Were Beaten By

447 broken records

Margins by which the 447 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 127.0. Ties are not counted.

Top 20 by Significance

18 March 1966

Top 20 records on 18 March 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
18 March 1966	Broken Hill (Kars), AU	daily rain	27.9 mm (1.1 in)	26.4 mm (1.0 in)	65 years	51 of 100 (Notable)
18 March 1966	Rockbank, AU	daily rain	50.8 mm (2.0 in)	40.6 mm (1.6 in)	20 years	47 of 100 (Notable)
18 March 1966	Oran-Hopital Militaire, DZ	daily low min	3.0 C (37.4 F)	1.5 C (2.7 F)	100 years	45 of 100 (Notable)
18 March 1966	Quilcene 2 SW, US	daily rain	70.1 mm (2.8 in)	34.5 mm (1.4 in)	16 years	43 of 100 (Notable)
18 March 1966	Toledo 3N, US	daily rain	26.4 mm (1.0 in)	10.7 mm (0.4 in)	71 years	41 of 100 (Notable)
18 March 1966	Independence, US	daily rain	32.3 mm (1.3 in)	9.4 mm (0.37 in)	71 years	40 of 100 (Notable)
18 March 1966	Pembroke Eddy Match, CA	daily high max	16.1 C (61.0 F)	1.7 C (3.1 F)	87 years	38 of 100 (Notable)
18 March 1966	Ignace, CA	daily snowfall	27.9 cm (11.0 in)	12.7 cm (5.0 in)	28 years	37 of 100 (Notable)
18 March 1966	Huntingdon, CA	daily high max	14.4 C (57.9 F)	1.1 C (2.0 F)	91 years	37 of 100 (Notable)
18 March 1966	Escanaba, US	daily high min	2.8 C (37.0 F)	2.2 C (4.0 F)	83 years	37 of 100 (Notable)
18 March 1966	Chimacum 4 S, US	daily rain	34.5 mm (1.4 in)	14.4 mm (0.6 in)	16 years	36 of 100 (Notable)
18 March 1966	Marshfield Exp Farm, US	daily rain	26.4 mm (1.0 in)	16.0 mm (0.6 in)	15 years	36 of 100 (Notable)
18 March 1966	Viroqua, US	daily rain	29.2 mm (1.1 in)	7.6 mm (0.30 in)	60 years	36 of 100 (Notable)
18 March 1966	Ignace, CA	daily rain	27.9 mm (1.1 in)	12.7 mm (0.5 in)	28 years	35 of 100 (Notable)
18 March 1966	Kaslo, CA	daily snowfall	7.6 cm (3.0 in)	5.1 cm (2.0 in)	52 years	34 of 100 (Routine)
18 March 1966	Cambridge Galt Moe, CA	daily high min	3.3 C (37.9 F)	3.3 C (5.9 F)	71 years	34 of 100 (Routine)
18 March 1966	Ramanagar, IN	daily rain	61.3 mm (2.4 in)	48.6 mm (1.9 in)	20 years	34 of 100 (Routine)
18 March 1966	Southampton, CA	daily high min	6.7 C (44.1 F)	2.3 C (4.1 F)	71 years	33 of 100 (Routine)
18 March 1966	Toronto, CA	daily high max	18.3 C (64.9 F)	1.1 C (2.0 F)	71 years	33 of 100 (Routine)
18 March 1966	Bancroft, CA	daily high max	17.2 C (63.0 F)	2.8 C (5.0 F)	71 years	33 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

1806 to 1966

Records set or tied on this calendar date in each year from 1806 to 1966. 1966 had 540 records.

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

Records on 03-18 in each year
Year	Records
1806	1
1807	1
1808	1
1810	1
1814	1
1831	1
1836	1
1839	1
1845	1
1849	1
1850	5
1853	2
1859	1
1863	1
1865	2
1867	1
1868	3
1876	1
1881	1
1882	3
1884	3
1885	1
1887	1
1888	4
1890	3
1891	3
1892	2
1893	1
1894	1
1895	2
1896	10
1897	14
1898	5
1899	8
1900	14
1901	2
1902	9
1903	22
1904	9
1905	19
1906	13
1907	11
1908	8
1909	9
1910	12
1911	17
1912	16
1913	24
1914	32
1915	30
1916	73
1917	45
1918	32
1919	25
1920	39
1921	66
1922	39
1923	262
1924	96
1925	145
1926	251
1927	376
1928	301
1929	106
1930	261
1931	167
1932	212
1933	244
1934	375
1935	87
1936	699
1937	296
1938	304
1939	750
1940	444
1941	954
1942	382
1943	603
1944	321
1945	751
1946	492
1947	328
1948	296
1949	292
1950	1,042
1951	582
1952	474
1953	218
1954	355
1955	469
1956	363
1957	374
1958	347
1959	392
1960	585
1961	579
1962	284
1963	665
1964	348
1965	1,584
1966	540
1967	1,396
1968	915
1969	601
1970	533
1971	405
1972	1,028
1973	716
1974	694
1975	614
1976	538
1977	684
1978	1,003
1979	894
1980	588
1981	570
1982	1,284
1983	1,225
1984	446
1985	731
1986	626
1987	933
1988	1,001
1989	1,147
1990	1,478
1991	706
1992	789
1993	1,683
1994	960
1995	833
1996	518
1997	1,024
1998	1,144
1999	1,051
2000	524
2001	841
2002	1,562
2003	1,425
2004	1,232
2005	1,178
2006	551
2007	1,330
2008	1,066
2009	776
2010	678
2011	993
2012	3,348
2013	783
2014	701
2015	943
2016	675
2017	1,183
2018	921
2019	666
2020	672
2021	562
2022	476
2023	890
2024	843
2025	728
2026	2,870

Download the Data

Data for records on 1966-03-18: 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	420
20 to 40	15
40 to 60	7
60 to 80	4
80 to 100	0
100 to 120	0
120 to 140	1