Weather Records on 11 May 1977

836 weather records were set or tied worldwide on 11 May 1977. Highest significance: Ft Myers Page Fld AP, US.

Key Facts for 11 May 1977

On 11 May 1977, 836 weather records were set or tied at long-record stations worldwide.
258 were record highs and 253 were record lows, counting maximum and minimum temperature.
By timescale, 1 were all-time records, 25 monthly and 810 daily.
Ft Myers Page Fld AP set a daily record precipitation of 98.8 mm (3.9 in) on 11 May 1977.
Across 156 earlier years (1814 to 2026) the same calendar date averaged 461 records.

Record Map

836 stations

836 station records on 11 May 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 11 May 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Ft Myers Page Fld AP	United States	Record daily precipitation	98.8 mm (3.9 in)	68 of 100 (Major)
Boonah Stark Ave	Australia	Record daily precipitation	78.0 mm (3.1 in)	67 of 100 (Major)
Halaula 1110	United States	Record daily precipitation	77.5 mm (3.1 in)	67 of 100 (Major)
Crows Nest	Australia	Record daily precipitation	56.6 mm (2.2 in)	58 of 100 (Notable)
E Lawai 934	United States	Record daily precipitation	54.6 mm (2.1 in)	58 of 100 (Notable)
Nazarezinho (Nazare)	Brazil	Record daily precipitation	120.0 mm (4.7 in)	57 of 100 (Notable)
Moro	United States	Record daily precipitation	38.6 mm (1.5 in)	56 of 100 (Notable)
Lihue 1020	United States	Record daily precipitation	87.6 mm (3.4 in)	56 of 100 (Notable)
Baldonnel	Canada	Record daily precipitation	34.0 mm (1.3 in)	55 of 100 (Notable)
Grindstone Island	Canada	Record daily snowfall	6.1 cm (2.4 in)	55 of 100 (Notable)
Waianae 798	United States	Record daily precipitation	40.9 mm (1.6 in)	54 of 100 (Notable)
Kapaa Stables 1104	United States	Record daily precipitation	71.1 mm (2.8 in)	53 of 100 (Notable)
Waiawa 943	United States	Record daily precipitation	33.8 mm (1.3 in)	53 of 100 (Notable)
Toliness Station	Australia	Record daily precipitation	48.6 mm (1.9 in)	52 of 100 (Notable)
Menangina	Australia	Record daily precipitation	33.0 mm (1.3 in)	51 of 100 (Notable)
Moogerah Dam	Australia	Record daily precipitation	64.6 mm (2.5 in)	50 of 100 (Notable)
Kealia 1112	United States	Record daily precipitation	52.1 mm (2.1 in)	50 of 100 (Notable)
Moorang	Australia	Record daily precipitation	80.0 mm (3.1 in)	48 of 100 (Notable)
Kinuso Rs	Canada	Record daily precipitation	29.5 mm (1.2 in)	48 of 100 (Notable)
Jericho Store	Australia	Record daily precipitation	52.6 mm (2.1 in)	47 of 100 (Notable)
Yundamindra	Australia	Record daily precipitation	28.0 mm (1.1 in)	46 of 100 (Notable)
Murphys Creek Post Office	Australia	Record daily precipitation	41.2 mm (1.6 in)	46 of 100 (Notable)
Belle Glade	United States	Record daily precipitation	73.7 mm (2.9 in)	46 of 100 (Notable)
Pechey Forestry	Australia	Record daily precipitation	58.0 mm (2.3 in)	45 of 100 (Notable)
Wahiawa Dam 863	United States	Record daily precipitation	36.3 mm (1.4 in)	45 of 100 (Notable)
Telemon Station	Australia	Record daily precipitation	32.2 mm (1.3 in)	44 of 100 (Notable)
Harrisville Post Office	Australia	Record daily precipitation	33.1 mm (1.3 in)	44 of 100 (Notable)
Indian Head Cda	Canada	Record high minimum temperature	17.2 C (63.0 F)	44 of 100 (Notable)
Myakka Rvr Sp	United States	Record daily precipitation	119.6 mm (4.7 in)	44 of 100 (Notable)
Hattonvale Store	Australia	Record daily precipitation	30.4 mm (1.2 in)	43 of 100 (Notable)
Hunt 3 SW	United States	Record daily precipitation	152.4 mm (6.0 in)	43 of 100 (Notable)
Edjudina	Australia	Record daily precipitation	27.5 mm (1.1 in)	42 of 100 (Notable)
La Motte (Bos)	South Africa	Record daily precipitation	65.0 mm (2.6 in)	42 of 100 (Notable)
Moore Haven Lock 1	United States	Record daily precipitation	54.6 mm (2.1 in)	42 of 100 (Notable)
Blue Hill Coop	United States	Record snow depth	10.2 cm (4.0 in)	42 of 100 (Notable)
Englesberg Village	Australia	Record daily precipitation	104.2 mm (4.1 in)	41 of 100 (Notable)
Yuleba Garden St	Australia	Record daily precipitation	33.4 mm (1.3 in)	41 of 100 (Notable)
Charlottetown Cda	Canada	Record daily snowfall	8.4 cm (3.3 in)	41 of 100 (Notable)
Abbeville	France	Record daily precipitation	25.6 mm (1.0 in)	41 of 100 (Notable)
Blackwater Post Office	Australia	Record daily precipitation	49.0 mm (1.9 in)	40 of 100 (Notable)
Dingo Post Office	Australia	Record daily precipitation	81.0 mm (3.2 in)	40 of 100 (Notable)
Christmas Creek	Australia	Record daily precipitation	42.8 mm (1.7 in)	40 of 100 (Notable)
Carrollton	United States	Record low minimum temperature	1.7 C (35.1 F)	40 of 100 (Notable)
Barcaldine Post Office	Australia	Record daily precipitation	50.1 mm (2.0 in)	39 of 100 (Notable)
Guantanamo Bay NAS	Cuba	Record daily precipitation	183.4 mm (7.2 in)	39 of 100 (Notable)
Lowood Don St	Australia	Record daily precipitation	25.4 mm (1.0 in)	38 of 100 (Notable)
Spring Bluff Railway STN	Australia	Record daily precipitation	37.6 mm (1.5 in)	38 of 100 (Notable)
Ashburnham	United States	Record snow depth	10.2 cm (4.0 in)	38 of 100 (Notable)
Red Lake Falls	United States	Record high minimum temperature	20.0 C (68.0 F)	38 of 100 (Notable)
Summerville 4W	United States	Record low minimum temperature	2.2 C (36.0 F)	38 of 100 (Notable)
Hukipo 945	United States	Record daily precipitation	75.4 mm (3.0 in)	38 of 100 (Notable)
Puhi 1013	United States	Record daily precipitation	48.3 mm (1.9 in)	38 of 100 (Notable)
Chaplin	Canada	Record high minimum temperature	13.9 C (57.0 F)	37 of 100 (Notable)
Waipahu 750	United States	Record daily precipitation	54.1 mm (2.1 in)	37 of 100 (Notable)
Taio (Pcd)	Brazil	Record daily precipitation	57.3 mm (2.3 in)	36 of 100 (Notable)
Cajazeiras	Brazil	Record daily precipitation	83.6 mm (3.3 in)	36 of 100 (Notable)
Ft Lauderdale	United States	Record low maximum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Bell Store	Australia	Record daily precipitation	29.0 mm (1.1 in)	34 of 100 (Routine)
Moncton A	Canada	Record daily snowfall	10.0 cm (3.9 in)	34 of 100 (Routine)
Union Springs 9 S	United States	Record low minimum temperature	7.2 C (45.0 F)	34 of 100 (Routine)

Counts by Type and Timescale

836 records

Records set or tied on 11 May 1977 by type: Highest daily maximum 89, Lowest daily maximum 119, Highest daily minimum 169, Lowest daily minimum 134, Heaviest daily rainfall 311, Heaviest daily snowfall 7, Deepest snow cover 7.

Records on 11 May 1977 by type
Record type	Records
Highest daily maximum	89
Lowest daily maximum	119
Highest daily minimum	169
Lowest daily minimum	134
Heaviest daily rainfall	311
Heaviest daily snowfall	7
Deepest snow cover	7

Records on 11 May 1977 by timescale: all-time 1, monthly 25, daily 810.

How Much Records Were Beaten By

694 broken records

Margins by which the 694 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 102.0. Ties are not counted.

Top 20 by Significance

11 May 1977

Top 20 records on 11 May 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
11 May 1977	Ft Myers Page Fld AP, US	daily rain	98.8 mm (3.9 in)	67.8 mm (2.7 in)	67 years	68 of 100 (Major)
11 May 1977	Boonah Stark Ave, AU	daily rain	78.0 mm (3.1 in)	67.8 mm (2.7 in)	66 years	67 of 100 (Major)
11 May 1977	Halaula 1110, US	daily rain	77.5 mm (3.1 in)	61.0 mm (2.4 in)	68 years	67 of 100 (Major)
11 May 1977	Crows Nest, AU	daily rain	56.6 mm (2.2 in)	40.1 mm (1.6 in)	36 years	58 of 100 (Notable)
11 May 1977	E Lawai 934, US	daily rain	54.6 mm (2.1 in)	42.4 mm (1.7 in)	36 years	58 of 100 (Notable)
11 May 1977	Nazarezinho (Nazare), BR	monthly rain	120.0 mm (4.7 in)	67.6 mm (2.7 in)	12 years	57 of 100 (Notable)
11 May 1977	Moro, US	monthly rain	38.6 mm (1.5 in)	10.2 mm (0.4 in)	44 years	56 of 100 (Notable)
11 May 1977	Lihue 1020, US	daily rain	87.6 mm (3.4 in)	61.4 mm (2.4 in)	34 years	56 of 100 (Notable)
11 May 1977	Baldonnel, CA	daily rain	34.0 mm (1.3 in)	29.2 mm (1.1 in)	36 years	55 of 100 (Notable)
11 May 1977	Grindstone Island, CA	daily snowfall	6.1 cm (2.4 in)	6.1 cm (2.4 in)	85 years	55 of 100 (Notable)
11 May 1977	Waianae 798, US	daily rain	40.9 mm (1.6 in)	28.7 mm (1.1 in)	50 years	54 of 100 (Notable)
11 May 1977	Kapaa Stables 1104, US	daily rain	71.1 mm (2.8 in)	60.7 mm (2.4 in)	34 years	53 of 100 (Notable)
11 May 1977	Waiawa 943, US	daily rain	33.8 mm (1.3 in)	23.6 mm (0.9 in)	55 years	53 of 100 (Notable)
11 May 1977	Toliness Station, AU	daily rain	48.6 mm (1.9 in)	37.9 mm (1.5 in)	51 years	52 of 100 (Notable)
11 May 1977	Menangina, AU	daily rain	33.0 mm (1.3 in)	23.1 mm (0.9 in)	44 years	51 of 100 (Notable)
11 May 1977	Moogerah Dam, AU	daily rain	64.6 mm (2.5 in)	45.8 mm (1.8 in)	36 years	50 of 100 (Notable)
11 May 1977	Kealia 1112, US	daily rain	52.1 mm (2.1 in)	31.8 mm (1.3 in)	36 years	50 of 100 (Notable)
11 May 1977	Moorang, AU	daily rain	80.0 mm (3.1 in)	60.4 mm (2.4 in)	36 years	48 of 100 (Notable)
11 May 1977	Kinuso Rs, CA	daily rain	29.5 mm (1.2 in)	28.0 mm (1.1 in)	36 years	48 of 100 (Notable)
11 May 1977	Jericho Store, AU	daily rain	52.6 mm (2.1 in)	33.5 mm (1.3 in)	51 years	47 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

1814 to 1977

Records set or tied on this calendar date in each year from 1814 to 1977. 1977 had 836 records.

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

Records on 05-11 in each year
Year	Records
1814	3
1832	1
1836	3
1837	1
1838	1
1848	2
1856	1
1860	2
1865	1
1867	1
1869	1
1872	1
1874	2
1879	2
1880	1
1881	5
1883	3
1884	2
1885	1
1886	2
1887	1
1888	1
1889	2
1892	1
1893	3
1894	2
1895	4
1896	3
1897	6
1898	5
1900	7
1901	9
1902	6
1903	7
1904	6
1905	12
1906	21
1907	44
1908	9
1909	12
1910	16
1911	99
1912	21
1913	20
1914	20
1915	16
1916	22
1917	40
1918	54
1919	56
1920	181
1921	58
1922	61
1923	111
1924	239
1925	410
1926	472
1927	318
1928	252
1929	126
1930	380
1931	254
1932	170
1933	429
1934	332
1935	276
1936	363
1937	170
1938	141
1939	213
1940	340
1941	411
1942	389
1943	646
1944	408
1945	483
1946	747
1947	480
1948	407
1949	451
1950	285
1951	395
1952	629
1953	686
1954	492
1955	235
1956	942
1957	439
1958	499
1959	575
1960	809
1961	663
1962	670
1963	984
1964	299
1965	356
1966	992
1967	974
1968	909
1969	349
1970	764
1971	565
1972	673
1973	429
1974	795
1975	383
1976	509
1977	836
1978	1,070
1979	1,239
1980	693
1981	1,298
1982	624
1983	930
1984	666
1985	835
1986	684
1987	1,247
1988	485
1989	952
1990	935
1991	990
1992	728
1993	1,088
1994	633
1995	1,244
1996	1,088
1997	1,033
1998	1,315
1999	1,052
2000	1,286
2001	848
2002	845
2003	1,321
2004	834
2005	944
2006	822
2007	833
2008	1,015
2009	605
2010	1,292
2011	1,414
2012	1,181
2013	615
2014	662
2015	1,038
2016	497
2017	546
2018	988
2019	915
2020	1,068
2021	590
2022	1,470
2023	390
2024	579
2025	1,104
2026	797

Download the Data

Data for records on 1977-05-11: 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	626
20 to 40	42
40 to 60	12
60 to 80	10
80 to 100	1
100 to 120	3