Weather Records on 16 May 1966

420 weather records were set or tied worldwide on 16 May 1966. Highest significance: Marble Hill, US.

Key Facts for 16 May 1966

On 16 May 1966, 420 weather records were set or tied at long-record stations worldwide.
158 were record highs and 135 were record lows, counting maximum and minimum temperature.
By timescale, 0 were all-time records, 7 monthly and 413 daily.
Marble Hill set a daily record precipitation of 79.0 mm (3.1 in) on 16 May 1966.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 438 records.

Record Map

420 stations

420 station records on 16 May 1966 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 16 May 1966: highest significance records shown on the map
Station	Country	Type	Value	Significance
Marble Hill	United States	Record daily precipitation	79.0 mm (3.1 in)	55 of 100 (Notable)
Tbilisi	Georgia	Record daily precipitation	75.0 mm (3.0 in)	51 of 100 (Notable)
Bolnisi	Georgia	Record daily precipitation	56.9 mm (2.2 in)	51 of 100 (Notable)
Aragats	Armenia	Record daily precipitation	31.1 mm (1.2 in)	50 of 100 (Notable)
Ararat	Armenia	Record daily precipitation	36.4 mm (1.4 in)	50 of 100 (Notable)
Aparan	Armenia	Record daily precipitation	32.3 mm (1.3 in)	49 of 100 (Notable)
Armavir	Armenia	Record daily precipitation	27.4 mm (1.1 in)	49 of 100 (Notable)
Jabjur-In-Armenia	Armenia	Record daily precipitation	30.7 mm (1.2 in)	44 of 100 (Notable)
Gumri	Armenia	Record daily precipitation	29.7 mm (1.2 in)	44 of 100 (Notable)
Dilijan	Armenia	Record daily precipitation	30.8 mm (1.2 in)	41 of 100 (Notable)
Gavar	Armenia	Record daily precipitation	26.4 mm (1.0 in)	41 of 100 (Notable)
Citronelle	United States	Record low minimum temperature	9.4 C (48.9 F)	41 of 100 (Notable)
Shnoh	Armenia	Record daily precipitation	39.7 mm (1.6 in)	40 of 100 (Notable)
Semenovka	Armenia	Record daily precipitation	34.3 mm (1.4 in)	40 of 100 (Notable)
Akhty	Russia	Record daily precipitation	25.3 mm (1.0 in)	39 of 100 (Notable)
Lermontovo	Armenia	Record daily precipitation	34.6 mm (1.4 in)	37 of 100 (Notable)
Amasia	Armenia	Record daily precipitation	32.8 mm (1.3 in)	36 of 100 (Notable)
Tsalka	Georgia	Record daily precipitation	48.6 mm (1.9 in)	36 of 100 (Notable)
Cordova AP	United States	Record daily snowfall	7.6 cm (3.0 in)	36 of 100 (Notable)
Sulak	Russia	Record daily precipitation	49.1 mm (1.9 in)	34 of 100 (Routine)
Regensburg	Germany	Record high maximum temperature	27.0 C (80.6 F)	33 of 100 (Routine)
Buynaksk	Russia	Record daily precipitation	28.7 mm (1.1 in)	33 of 100 (Routine)
Cairo River	United States	Record daily precipitation	53.3 mm (2.1 in)	33 of 100 (Routine)
Fantan	Armenia	Record daily precipitation	29.8 mm (1.2 in)	32 of 100 (Routine)
Fremantle	Australia	Record daily precipitation	33.0 mm (1.3 in)	32 of 100 (Routine)
Nurnberg	Germany	Record high maximum temperature	27.5 C (81.5 F)	32 of 100 (Routine)
Hanty-Mansijsk	Russia	Record low minimum temperature	-10.3 C (13.5 F)	32 of 100 (Routine)
St Joseph 3 N	United States	Record high minimum temperature	22.2 C (72.0 F)	32 of 100 (Routine)
Dresden	United States	Record daily precipitation	65.0 mm (2.6 in)	32 of 100 (Routine)
Liberal	United States	Record high maximum temperature	37.2 C (99.0 F)	31 of 100 (Routine)
Dover 1 W	United States	Record daily precipitation	36.1 mm (1.4 in)	31 of 100 (Routine)
Osceola	United States	Record daily precipitation	58.4 mm (2.3 in)	30 of 100 (Routine)
Ponca City	United States	Record high maximum temperature	33.9 C (93.0 F)	30 of 100 (Routine)
Savannah 6 SW	United States	Record daily precipitation	51.1 mm (2.0 in)	30 of 100 (Routine)
Levan	United States	Record high minimum temperature	13.9 C (57.0 F)	30 of 100 (Routine)
Hatteras	United States	Record low maximum temperature	15.6 C (60.1 F)	30 of 100 (Routine)
Melville	United States	Record high minimum temperature	21.7 C (71.1 F)	29 of 100 (Routine)
Cape May 2 NW	United States	Record low minimum temperature	4.4 C (39.9 F)	29 of 100 (Routine)
Woodward	United States	Record high maximum temperature	37.2 C (99.0 F)	29 of 100 (Routine)
Union City	United States	Record daily precipitation	48.5 mm (1.9 in)	29 of 100 (Routine)
Brownwood 2NE	United States	Record high minimum temperature	22.2 C (72.0 F)	29 of 100 (Routine)
Zakatala	Azerbaijan	Record daily precipitation	51.1 mm (2.0 in)	28 of 100 (Routine)
Waynesboro 2 W	United States	Record high minimum temperature	21.7 C (71.1 F)	28 of 100 (Routine)
Indian Mills 2 W	United States	Record low minimum temperature	0.0 C (32.0 F)	28 of 100 (Routine)
Pemberton	United States	Record low minimum temperature	0.6 C (33.1 F)	28 of 100 (Routine)
Huehue 92.1	United States	Record daily precipitation	53.8 mm (2.1 in)	28 of 100 (Routine)
Wichita Falls Muni AP	United States	Record high maximum temperature	37.8 C (100.0 F)	28 of 100 (Routine)
Oxley Island (Lyndhurst)	Australia	Record daily precipitation	36.8 mm (1.4 in)	27 of 100 (Routine)
Kvareli	Georgia	Record daily precipitation	59.8 mm (2.4 in)	27 of 100 (Routine)
Irapuato	Mexico	Record high minimum temperature	20.0 C (68.0 F)	27 of 100 (Routine)
Akhty	Russia	Record low minimum temperature	1.3 C (34.3 F)	27 of 100 (Routine)
Anacortes	United States	Record low maximum temperature	10.6 C (51.1 F)	27 of 100 (Routine)
Maracaja	Brazil	Record daily precipitation	30.8 mm (1.2 in)	26 of 100 (Routine)
Nanaimo	Canada	Record low minimum temperature	1.7 C (35.1 F)	26 of 100 (Routine)
Aralskoe More	Kazakhstan	Record low minimum temperature	1.6 C (34.9 F)	26 of 100 (Routine)
Hugoton	United States	Record high maximum temperature	36.1 C (97.0 F)	26 of 100 (Routine)
Beaver	United States	Record high maximum temperature	37.2 C (99.0 F)	26 of 100 (Routine)
Samburg Wr	United States	Record daily precipitation	45.2 mm (1.8 in)	26 of 100 (Routine)
Ballinger 2 NW	United States	Record high minimum temperature	22.2 C (72.0 F)	26 of 100 (Routine)
Crosbyton	United States	Record high minimum temperature	18.3 C (64.9 F)	26 of 100 (Routine)

Counts by Type and Timescale

420 records

Records set or tied on 16 May 1966 by type: Highest daily maximum 87, Lowest daily maximum 64, Highest daily minimum 71, Lowest daily minimum 71, Heaviest daily rainfall 122, Heaviest daily snowfall 5.

Records on 16 May 1966 by type
Record type	Records
Highest daily maximum	87
Lowest daily maximum	64
Highest daily minimum	71
Lowest daily minimum	71
Heaviest daily rainfall	122
Heaviest daily snowfall	5
Deepest snow cover	0

Records on 16 May 1966 by timescale: all-time 0, monthly 7, daily 413.

How Much Records Were Beaten By

334 broken records

Margins by which the 334 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.0. Ties are not counted.

Top 20 by Significance

16 May 1966

Top 20 records on 16 May 1966 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 May 1966	Marble Hill, US	daily rain	79.0 mm (3.1 in)	42.4 mm (1.7 in)	69 years	55 of 100 (Notable)
16 May 1966	Tbilisi, GE	daily rain	75.0 mm (3.0 in)	21.4 mm (0.8 in)	66 years	51 of 100 (Notable)
16 May 1966	Bolnisi, GE	daily rain	56.9 mm (2.2 in)	40.4 mm (1.6 in)	28 years	51 of 100 (Notable)
16 May 1966	Aragats, AM	daily rain	31.1 mm (1.2 in)	24.9 mm (1.0 in)	24 years	50 of 100 (Notable)
16 May 1966	Ararat, AM	daily rain	36.4 mm (1.4 in)	24.6 mm (1.0 in)	25 years	50 of 100 (Notable)
16 May 1966	Aparan, AM	daily rain	32.3 mm (1.3 in)	24.5 mm (1.0 in)	20 years	49 of 100 (Notable)
16 May 1966	Armavir, AM	daily rain	27.4 mm (1.1 in)	17.1 mm (0.7 in)	21 years	49 of 100 (Notable)
16 May 1966	Jabjur-In-Armenia, AM	daily rain	30.7 mm (1.2 in)	17.7 mm (0.7 in)	24 years	44 of 100 (Notable)
16 May 1966	Gumri, AM	daily rain	29.7 mm (1.2 in)	9.5 mm (0.37 in)	64 years	44 of 100 (Notable)
16 May 1966	Dilijan, AM	daily rain	30.8 mm (1.2 in)	16.6 mm (0.7 in)	24 years	41 of 100 (Notable)
16 May 1966	Gavar, AM	daily rain	26.4 mm (1.0 in)	7.2 mm (0.28 in)	66 years	41 of 100 (Notable)
16 May 1966	Citronelle, US	daily low min	9.4 C (48.9 F)	3.9 C (7.0 F)	75 years	41 of 100 (Notable)
16 May 1966	Shnoh, AM	daily rain	39.7 mm (1.6 in)	16.2 mm (0.6 in)	19 years	40 of 100 (Notable)
16 May 1966	Semenovka, AM	daily rain	34.3 mm (1.4 in)	17.8 mm (0.7 in)	24 years	40 of 100 (Notable)
16 May 1966	Akhty, RU	daily rain	25.3 mm (1.0 in)	14.5 mm (0.6 in)	20 years	39 of 100 (Notable)
16 May 1966	Lermontovo, AM	daily rain	34.6 mm (1.4 in)	15.6 mm (0.6 in)	24 years	37 of 100 (Notable)
16 May 1966	Amasia, AM	daily rain	32.8 mm (1.3 in)	16.3 mm (0.6 in)	21 years	36 of 100 (Notable)
16 May 1966	Tsalka, GE	daily rain	48.6 mm (1.9 in)	21.2 mm (0.8 in)	28 years	36 of 100 (Notable)
16 May 1966	Cordova AP, US	daily snowfall	7.6 cm (3.0 in)	7.6 cm (3.0 in)	55 years	36 of 100 (Notable)
16 May 1966	Sulak, RU	daily rain	49.1 mm (1.9 in)	17.5 mm (0.7 in)	35 years	34 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

1802 to 1966

Records set or tied on this calendar date in each year from 1802 to 1966. 1966 had 420 records.

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

Records on 05-16 in each year
Year	Records
1802	1
1806	1
1820	1
1825	1
1832	1
1837	1
1847	1
1856	1
1858	1
1861	1
1862	1
1863	1
1864	1
1866	1
1867	2
1871	1
1874	3
1878	1
1879	1
1880	1
1881	1
1882	1
1883	1
1884	1
1885	1
1886	1
1887	2
1888	2
1889	2
1890	1
1891	4
1892	3
1893	1
1894	2
1895	6
1896	2
1897	1
1898	11
1899	6
1900	7
1901	2
1902	10
1903	9
1904	17
1905	13
1906	25
1907	13
1908	6
1909	57
1910	24
1911	22
1912	13
1913	24
1914	11
1915	104
1916	38
1917	48
1918	395
1919	28
1920	69
1921	106
1922	31
1923	126
1924	152
1925	177
1926	211
1927	230
1928	121
1929	273
1930	170
1931	254
1932	441
1933	268
1934	304
1935	320
1936	520
1937	279
1938	299
1939	448
1940	334
1941	429
1942	721
1943	652
1944	531
1945	888
1946	327
1947	344
1948	281
1949	360
1950	210
1951	558
1952	773
1953	421
1954	251
1955	525
1956	697
1957	610
1958	361
1959	680
1960	370
1961	378
1962	1,295
1963	552
1964	313
1965	442
1966	420
1967	611
1968	790
1969	423
1970	520
1971	509
1972	625
1973	869
1974	1,207
1975	544
1976	518
1977	1,269
1978	808
1979	506
1980	830
1981	896
1982	427
1983	1,579
1984	981
1985	536
1986	747
1987	1,369
1988	946
1989	938
1990	1,068
1991	1,094
1992	809
1993	653
1994	705
1995	1,235
1996	1,835
1997	1,932
1998	1,500
1999	778
2000	1,129
2001	1,110
2002	694
2003	1,289
2004	869
2005	870
2006	1,345
2007	692
2008	1,034
2009	897
2010	836
2011	1,398
2012	770
2013	596
2014	1,483
2015	782
2016	793
2017	710
2018	1,013
2019	572
2020	431
2021	419
2022	717
2023	653
2024	601
2025	993
2026	558

Download the Data

Data for records on 1966-05-16: 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	286
10 to 20	24
20 to 30	18
30 to 40	3
40 to 50	2
50 to 60	0
60 to 70	0
70 to 80	1