Weather Records on 16 May 1977

1,269 weather records were set or tied worldwide on 16 May 1977. Highest significance: Mantova, IT.

Key Facts for 16 May 1977

On 16 May 1977, 1,269 weather records were set or tied at long-record stations worldwide.
312 were record highs and 166 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 41 monthly and 1,227 daily.
Mantova set a monthly record daily precipitation of 103.8 mm (4.1 in) on 16 May 1977.
Across 165 earlier years (1802 to 2026) the same calendar date averaged 433 records.

Record Map

1,269 stations

1,269 station records on 16 May 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 16 May 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mantova	Italy	Record daily precipitation	103.8 mm (4.1 in)	90 of 100 (Exceptional)
Ravenswood Post Office	Australia	Record daily precipitation	96.0 mm (3.8 in)	84 of 100 (Exceptional)
Cassilis Post Office	Australia	Record daily precipitation	81.4 mm (3.2 in)	78 of 100 (Major)
Musgrave	Australia	Record daily precipitation	80.0 mm (3.1 in)	74 of 100 (Major)
Nebo	Australia	Record daily precipitation	60.0 mm (2.4 in)	74 of 100 (Major)
Blackwater Post Office	Australia	Record daily precipitation	86.0 mm (3.4 in)	71 of 100 (Major)
Warialda Post Office	Australia	Record daily precipitation	55.4 mm (2.2 in)	70 of 100 (Major)
Chillagoe Atherton Street	Australia	Record daily precipitation	73.6 mm (2.9 in)	69 of 100 (Major)
Jimbour State School	Australia	Record daily precipitation	49.2 mm (1.9 in)	66 of 100 (Major)
Hillgrove Station	Australia	Record daily precipitation	56.4 mm (2.2 in)	65 of 100 (Major)
Cardwell Marine Pde	Australia	Record daily precipitation	138.0 mm (5.4 in)	65 of 100 (Major)
Mount McConnell	Australia	Record daily precipitation	81.4 mm (3.2 in)	65 of 100 (Major)
Twin Hills Post Office	Australia	Record daily precipitation	72.0 mm (2.8 in)	65 of 100 (Major)
Yungaburra	Australia	Record daily precipitation	75.0 mm (3.0 in)	64 of 100 (Major)
Bowen Post Office	Australia	Record daily precipitation	80.6 mm (3.2 in)	64 of 100 (Major)
Cape Capricorn Lighthouse	Australia	Record daily precipitation	94.8 mm (3.7 in)	64 of 100 (Major)
Valley of Lagoons	Australia	Record daily precipitation	63.8 mm (2.5 in)	63 of 100 (Major)
Kuttabul Post Office	Australia	Record daily precipitation	72.0 mm (2.8 in)	63 of 100 (Major)
Sarina Post Office	Australia	Record daily precipitation	108.0 mm (4.3 in)	63 of 100 (Major)
Bulliwallah	Australia	Record daily precipitation	60.0 mm (2.4 in)	63 of 100 (Major)
Annanvale	Australia	Record daily precipitation	139.0 mm (5.5 in)	63 of 100 (Major)
Cooktown Post Office	Australia	Record daily precipitation	80.4 mm (3.2 in)	62 of 100 (Major)
Herberton White St	Australia	Record daily precipitation	59.6 mm (2.3 in)	62 of 100 (Major)
Cracow Store	Australia	Record daily precipitation	62.0 mm (2.4 in)	62 of 100 (Major)
Greenvale	Australia	Record daily precipitation	72.4 mm (2.9 in)	61 of 100 (Major)
Many Peaks Post Office	Australia	Record daily precipitation	75.0 mm (3.0 in)	61 of 100 (Major)
Mount Larcom Post Office	Australia	Record daily precipitation	100.8 mm (4.0 in)	61 of 100 (Major)
Moorland (Denro-An)	Australia	Record daily precipitation	122.0 mm (4.8 in)	61 of 100 (Major)
Kairi Research Station	Australia	Record daily precipitation	80.0 mm (3.1 in)	60 of 100 (Major)
Mt Garnet Post Office	Australia	Record daily precipitation	62.2 mm (2.4 in)	60 of 100 (Major)
Bulby Brush (Blue Look-Out)	Australia	Record daily precipitation	90.6 mm (3.6 in)	60 of 100 (Major)
Hannam Vale (Hannam Vale Road)	Australia	Record daily precipitation	124.0 mm (4.9 in)	60 of 100 (Major)
Milray Station Wrc	Australia	Record daily precipitation	42.0 mm (1.7 in)	59 of 100 (Notable)
Irvinebank	Australia	Record daily precipitation	53.0 mm (2.1 in)	59 of 100 (Notable)
Mount Wilkin	Australia	Record daily precipitation	72.2 mm (2.8 in)	59 of 100 (Notable)
Callemondah Station	Australia	Record daily precipitation	112.0 mm (4.4 in)	59 of 100 (Notable)
Greenmount Post Office	Australia	Record daily precipitation	52.0 mm (2.0 in)	59 of 100 (Notable)
Callagiddy Station	Australia	Record daily precipitation	70.0 mm (2.8 in)	58 of 100 (Notable)
Wando Vale Station	Australia	Record daily precipitation	74.2 mm (2.9 in)	58 of 100 (Notable)
Ayton	Australia	Record daily precipitation	75.0 mm (3.0 in)	58 of 100 (Notable)
Mossman Post Office	Australia	Record daily precipitation	70.5 mm (2.8 in)	58 of 100 (Notable)
Yabulu Qld Nickel	Australia	Record daily precipitation	75.0 mm (3.0 in)	58 of 100 (Notable)
Lethebrook	Australia	Record daily precipitation	113.0 mm (4.4 in)	58 of 100 (Notable)
Pleystowe Sugar Mill	Australia	Record daily precipitation	83.2 mm (3.3 in)	58 of 100 (Notable)
Walden	United States	Record daily precipitation	39.6 mm (1.6 in)	58 of 100 (Notable)
Curlewis Post Office	Australia	Record daily precipitation	58.2 mm (2.3 in)	57 of 100 (Notable)
Einasleigh Township	Australia	Record daily precipitation	35.2 mm (1.4 in)	56 of 100 (Notable)
Emu Park Hill St	Australia	Record daily precipitation	198.0 mm (7.8 in)	56 of 100 (Notable)
Giru Post Office	Australia	Record daily precipitation	88.2 mm (3.5 in)	56 of 100 (Notable)
Inkerman Station	Australia	Record daily precipitation	66.4 mm (2.6 in)	56 of 100 (Notable)
St Lawrence Post Office	Australia	Record daily precipitation	60.0 mm (2.4 in)	56 of 100 (Notable)
Trafalgar Station	Australia	Record daily precipitation	123.0 mm (4.8 in)	55 of 100 (Notable)
Duaringa Post Office	Australia	Record daily precipitation	66.0 mm (2.6 in)	55 of 100 (Notable)
"Kageon" Dawes	Australia	Record daily precipitation	59.4 mm (2.3 in)	55 of 100 (Notable)
Thangool Airport	Australia	Record daily precipitation	75.6 mm (3.0 in)	55 of 100 (Notable)
Comboyne Post Office	Australia	Record daily precipitation	166.2 mm (6.5 in)	55 of 100 (Notable)
King Junction	Australia	Record daily precipitation	29.0 mm (1.1 in)	54 of 100 (Notable)
Edenholme	Australia	Record daily precipitation	34.0 mm (1.3 in)	53 of 100 (Notable)
Carpentaria Downs Station	Australia	Record daily precipitation	41.0 mm (1.6 in)	53 of 100 (Notable)
Collaroy Station	Australia	Record daily precipitation	57.4 mm (2.3 in)	53 of 100 (Notable)

Counts by Type and Timescale

1,269 records

Records set or tied on 16 May 1977 by type: Highest daily maximum 149, Lowest daily maximum 92, Highest daily minimum 163, Lowest daily minimum 74, Heaviest daily rainfall 771, Heaviest daily snowfall 18, Deepest snow cover 2.

Records on 16 May 1977 by type
Record type	Records
Highest daily maximum	149
Lowest daily maximum	92
Highest daily minimum	163
Lowest daily minimum	74
Heaviest daily rainfall	771
Heaviest daily snowfall	18
Deepest snow cover	2

Records on 16 May 1977 by timescale: all-time 1, monthly 41, daily 1,227.

How Much Records Were Beaten By

1,131 broken records

Margins by which the 1,131 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 150.0. Ties are not counted.

Top 20 by Significance

16 May 1977

Top 20 records on 16 May 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
16 May 1977	Mantova, IT	monthly rain	103.8 mm (4.1 in)	46.4 mm (1.8 in)	108 years	90 of 100 (Exceptional)
16 May 1977	Ravenswood Post Office, AU	monthly rain	96.0 mm (3.8 in)	45.2 mm (1.8 in)	87 years	84 of 100 (Exceptional)
16 May 1977	Cassilis Post Office, AU	daily rain	81.4 mm (3.2 in)	72.3 mm (2.8 in)	95 years	78 of 100 (Major)
16 May 1977	Musgrave, AU	daily rain	80.0 mm (3.1 in)	68.3 mm (2.7 in)	83 years	74 of 100 (Major)
16 May 1977	Nebo, AU	daily rain	60.0 mm (2.4 in)	40.9 mm (1.6 in)	82 years	74 of 100 (Major)
16 May 1977	Blackwater Post Office, AU	daily rain	86.0 mm (3.4 in)	69.2 mm (2.7 in)	76 years	71 of 100 (Major)
16 May 1977	Warialda Post Office, AU	daily rain	55.4 mm (2.2 in)	34.8 mm (1.4 in)	95 years	70 of 100 (Major)
16 May 1977	Chillagoe Atherton Street, AU	daily rain	73.6 mm (2.9 in)	73.6 mm (2.9 in)	75 years	69 of 100 (Major)
16 May 1977	Jimbour State School, AU	daily rain	49.2 mm (1.9 in)	40.1 mm (1.6 in)	62 years	66 of 100 (Major)
16 May 1977	Hillgrove Station, AU	daily rain	56.4 mm (2.2 in)	55.4 mm (2.2 in)	62 years	65 of 100 (Major)
16 May 1977	Cardwell Marine Pde, AU	daily rain	138.0 mm (5.4 in)	43.8 mm (1.7 in)	84 years	65 of 100 (Major)
16 May 1977	Mount McConnell, AU	daily rain	81.4 mm (3.2 in)	58.5 mm (2.3 in)	68 years	65 of 100 (Major)
16 May 1977	Twin Hills Post Office, AU	daily rain	72.0 mm (2.8 in)	68.4 mm (2.7 in)	56 years	65 of 100 (Major)
16 May 1977	Yungaburra, AU	monthly rain	75.0 mm (3.0 in)	23.9 mm (0.9 in)	41 years	64 of 100 (Major)
16 May 1977	Bowen Post Office, AU	daily rain	80.6 mm (3.2 in)	42.5 mm (1.7 in)	84 years	64 of 100 (Major)
16 May 1977	Cape Capricorn Lighthouse, AU	daily rain	94.8 mm (3.7 in)	74.5 mm (2.9 in)	56 years	64 of 100 (Major)
16 May 1977	Valley of Lagoons, AU	daily rain	63.8 mm (2.5 in)	59.7 mm (2.4 in)	44 years	63 of 100 (Major)
16 May 1977	Kuttabul Post Office, AU	daily rain	72.0 mm (2.8 in)	65.9 mm (2.6 in)	59 years	63 of 100 (Major)
16 May 1977	Sarina Post Office, AU	daily rain	108.0 mm (4.3 in)	88.4 mm (3.5 in)	56 years	63 of 100 (Major)
16 May 1977	Bulliwallah, AU	daily rain	60.0 mm (2.4 in)	54.7 mm (2.2 in)	56 years	63 of 100 (Major)

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 1977

Records set or tied on this calendar date in each year from 1802 to 1977. 1977 had 1,269 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 1977-05-16: 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 20	897
20 to 40	120
40 to 60	63
60 to 80	39
80 to 100	9
100 to 120	1
120 to 140	1
140 to 160	1