Weather Records on 15 May 1977

1,186 weather records were set or tied worldwide on 15 May 1977. Highest significance: Strathmore, AU.

Key Facts for 15 May 1977

On 15 May 1977, 1,186 weather records were set or tied at long-record stations worldwide.
394 were record highs and 154 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 44 monthly and 1,139 daily.
Strathmore set a monthly record daily precipitation of 142.8 mm (5.6 in) on 15 May 1977.
Across 162 earlier years (1820 to 2026) the same calendar date averaged 426 records.

Record Map

1,186 stations

1,186 station records on 15 May 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 15 May 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Strathmore	Australia	Record daily precipitation	142.8 mm (5.6 in)	75 of 100 (Major)
Oak Park Station	Australia	Record daily precipitation	79.8 mm (3.1 in)	74 of 100 (Major)
Herberton White St	Australia	Record daily precipitation	35.8 mm (1.4 in)	72 of 100 (Major)
King Junction	Australia	Record daily precipitation	56.2 mm (2.2 in)	69 of 100 (Major)
Lyndhurst Station	Australia	Record daily precipitation	44.0 mm (1.7 in)	64 of 100 (Major)
Brigalow Post Office	Australia	Record daily precipitation	105.0 mm (4.1 in)	64 of 100 (Major)
Mt Douglas	Australia	Record daily precipitation	58.6 mm (2.3 in)	63 of 100 (Major)
Alliance	Canada	Record daily precipitation	30.5 mm (1.2 in)	63 of 100 (Major)
Shirbourne Park	Australia	Record daily precipitation	118.2 mm (4.7 in)	62 of 100 (Major)
Peakvale Station	Australia	Record daily precipitation	60.0 mm (2.4 in)	61 of 100 (Major)
Twin Hills Post Office	Australia	Record daily precipitation	77.2 mm (3.0 in)	61 of 100 (Major)
Spicer	United States	Record daily precipitation	25.9 mm (1.0 in)	61 of 100 (Major)
Gilberton	Australia	Record daily precipitation	45.0 mm (1.8 in)	60 of 100 (Major)
Bulliwallah	Australia	Record daily precipitation	70.0 mm (2.8 in)	59 of 100 (Notable)
Balmoral Station	Australia	Record daily precipitation	81.6 mm (3.2 in)	58 of 100 (Notable)
Proserpine Post Office	Australia	Record daily precipitation	69.4 mm (2.7 in)	58 of 100 (Notable)
Columboola	Australia	Record daily precipitation	132.0 mm (5.2 in)	58 of 100 (Notable)
Miles Post Office	Australia	Record daily precipitation	130.0 mm (5.1 in)	57 of 100 (Notable)
Meringa Sugar Exp STN	Australia	Record daily precipitation	61.6 mm (2.4 in)	56 of 100 (Notable)
St Lawrence Post Office	Australia	Record daily precipitation	57.0 mm (2.2 in)	55 of 100 (Notable)
Taralga Post Office	Australia	Record daily precipitation	40.4 mm (1.6 in)	55 of 100 (Notable)
Elwood 8 S	United States	Record daily precipitation	64.0 mm (2.5 in)	55 of 100 (Notable)
Evelyn State Forest	Australia	Record daily precipitation	55.0 mm (2.2 in)	54 of 100 (Notable)
Trafalgar Station	Australia	Record daily precipitation	71.0 mm (2.8 in)	54 of 100 (Notable)
Ayton	Australia	Record daily precipitation	77.0 mm (3.0 in)	53 of 100 (Notable)
Koah	Australia	Record daily precipitation	34.8 mm (1.4 in)	53 of 100 (Notable)
Woleebee Nevasa	Australia	Record daily precipitation	164.4 mm (6.5 in)	53 of 100 (Notable)
Stanwell Post Office	Australia	Record daily precipitation	84.4 mm (3.3 in)	53 of 100 (Notable)
Nowendoc (Beaufort)	Australia	Record daily precipitation	32.4 mm (1.3 in)	53 of 100 (Notable)
Ranfurly	Canada	Record daily precipitation	38.9 mm (1.5 in)	53 of 100 (Notable)
Vladikavkaz	Russia	Record daily precipitation	55.9 mm (2.2 in)	53 of 100 (Notable)
South Johnstone Exp STN	Australia	Record daily precipitation	116.6 mm (4.6 in)	52 of 100 (Notable)
Yabulu Qld Nickel	Australia	Record daily precipitation	85.2 mm (3.4 in)	52 of 100 (Notable)
Mount McConnell	Australia	Record daily precipitation	34.0 mm (1.3 in)	52 of 100 (Notable)
Gregory Springs Station	Australia	Record daily precipitation	74.0 mm (2.9 in)	51 of 100 (Notable)
Ogmore Post Office	Australia	Record daily precipitation	91.0 mm (3.6 in)	51 of 100 (Notable)
Strathbogie	Australia	Record daily precipitation	73.0 mm (2.9 in)	51 of 100 (Notable)
Waseca	Canada	Record daily precipitation	31.5 mm (1.2 in)	51 of 100 (Notable)
Moonmera	Australia	Record daily precipitation	68.0 mm (2.7 in)	50 of 100 (Notable)
Uralla (Dumaresq St)	Australia	Record daily precipitation	58.0 mm (2.3 in)	50 of 100 (Notable)
Newcastle Nobbys Signal Statio	Australia	Record daily precipitation	68.0 mm (2.7 in)	50 of 100 (Notable)
Busby	United States	Record daily precipitation	45.5 mm (1.8 in)	50 of 100 (Notable)
Towrana	Australia	Record daily precipitation	40.6 mm (1.6 in)	49 of 100 (Notable)
Kidston Gold Mine	Australia	Record daily precipitation	54.0 mm (2.1 in)	49 of 100 (Notable)
Lucinda Township	Australia	Record daily precipitation	90.0 mm (3.5 in)	49 of 100 (Notable)
Belah Park	Australia	Record daily precipitation	57.2 mm (2.3 in)	49 of 100 (Notable)
Lame Deer	United States	Record daily precipitation	51.1 mm (2.0 in)	49 of 100 (Notable)
Wilsonville	United States	Record daily precipitation	62.2 mm (2.4 in)	49 of 100 (Notable)
Carrarang	Australia	Record daily precipitation	59.2 mm (2.3 in)	48 of 100 (Notable)
Townsville Aero	Australia	Record daily precipitation	81.0 mm (3.2 in)	48 of 100 (Notable)
Homestead	Australia	Record daily precipitation	58.0 mm (2.3 in)	48 of 100 (Notable)
Chinchilla Water Treatment Pla	Australia	Record daily precipitation	95.0 mm (3.7 in)	48 of 100 (Notable)
Quirindi (Boxwood)	Australia	Record daily precipitation	38.4 mm (1.5 in)	48 of 100 (Notable)
Sedgewick	Canada	Record daily precipitation	38.6 mm (1.5 in)	48 of 100 (Notable)
Carnarvon Airport	Australia	Record daily precipitation	61.0 mm (2.4 in)	47 of 100 (Notable)
Clohesy River	Australia	Record daily precipitation	64.0 mm (2.5 in)	47 of 100 (Notable)
Cape Cleveland Lighthouse	Australia	Record daily precipitation	65.8 mm (2.6 in)	47 of 100 (Notable)
Woodhouse	Australia	Record daily precipitation	72.0 mm (2.8 in)	47 of 100 (Notable)
Bundabaroo	Australia	Record daily precipitation	39.0 mm (1.5 in)	47 of 100 (Notable)
Langmorn	Australia	Record daily precipitation	81.0 mm (3.2 in)	47 of 100 (Notable)

Counts by Type and Timescale

1,186 records

Records set or tied on 15 May 1977 by type: Highest daily maximum 151, Lowest daily maximum 42, Highest daily minimum 243, Lowest daily minimum 112, Heaviest daily rainfall 624, Heaviest daily snowfall 13, Deepest snow cover 1.

Records on 15 May 1977 by type
Record type	Records
Highest daily maximum	151
Lowest daily maximum	42
Highest daily minimum	243
Lowest daily minimum	112
Heaviest daily rainfall	624
Heaviest daily snowfall	13
Deepest snow cover	1

Records on 15 May 1977 by timescale: all-time 3, monthly 44, daily 1,139.

How Much Records Were Beaten By

1,042 broken records

Margins by which the 1,042 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

15 May 1977

Top 20 records on 15 May 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
15 May 1977	Strathmore, AU	monthly rain	142.8 mm (5.6 in)	64.3 mm (2.5 in)	57 years	75 of 100 (Major)
15 May 1977	Oak Park Station, AU	daily rain	79.8 mm (3.1 in)	79.8 mm (3.1 in)	87 years	74 of 100 (Major)
15 May 1977	Herberton White St, AU	daily rain	35.8 mm (1.4 in)	24.6 mm (1.0 in)	77 years	72 of 100 (Major)
15 May 1977	King Junction, AU	monthly rain	56.2 mm (2.2 in)	23.9 mm (0.9 in)	57 years	69 of 100 (Major)
15 May 1977	Lyndhurst Station, AU	daily rain	44.0 mm (1.7 in)	44.0 mm (1.7 in)	89 years	64 of 100 (Major)
15 May 1977	Brigalow Post Office, AU	monthly rain	105.0 mm (4.1 in)	41.5 mm (1.6 in)	51 years	64 of 100 (Major)
15 May 1977	Mt Douglas, AU	daily rain	58.6 mm (2.3 in)	56.8 mm (2.2 in)	56 years	63 of 100 (Major)
15 May 1977	Alliance, CA	daily rain	30.5 mm (1.2 in)	23.9 mm (0.9 in)	56 years	63 of 100 (Major)
15 May 1977	Shirbourne Park, AU	daily rain	118.2 mm (4.7 in)	108.3 mm (4.3 in)	56 years	62 of 100 (Major)
15 May 1977	Peakvale Station, AU	daily rain	60.0 mm (2.4 in)	60.0 mm (2.4 in)	55 years	61 of 100 (Major)
15 May 1977	Twin Hills Post Office, AU	daily rain	77.2 mm (3.0 in)	70.8 mm (2.8 in)	46 years	61 of 100 (Major)
15 May 1977	Spicer, US	daily rain	25.9 mm (1.0 in)	18.0 mm (0.7 in)	64 years	61 of 100 (Major)
15 May 1977	Gilberton, AU	daily rain	45.0 mm (1.8 in)	45.0 mm (1.8 in)	58 years	60 of 100 (Major)
15 May 1977	Bulliwallah, AU	daily rain	70.0 mm (2.8 in)	68.0 mm (2.7 in)	44 years	59 of 100 (Notable)
15 May 1977	Balmoral Station, AU	daily rain	81.6 mm (3.2 in)	67.6 mm (2.7 in)	46 years	58 of 100 (Notable)
15 May 1977	Proserpine Post Office, AU	daily rain	69.4 mm (2.7 in)	38.9 mm (1.5 in)	70 years	58 of 100 (Notable)
15 May 1977	Columboola, AU	monthly rain	132.0 mm (5.2 in)	43.1 mm (1.7 in)	50 years	58 of 100 (Notable)
15 May 1977	Miles Post Office, AU	monthly rain	130.0 mm (5.1 in)	33.2 mm (1.3 in)	38 years	57 of 100 (Notable)
15 May 1977	Meringa Sugar Exp STN, AU	daily rain	61.6 mm (2.4 in)	48.4 mm (1.9 in)	40 years	56 of 100 (Notable)
15 May 1977	St Lawrence Post Office, AU	daily rain	57.0 mm (2.2 in)	44.3 mm (1.7 in)	46 years	55 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

1820 to 1977

Records set or tied on this calendar date in each year from 1820 to 1977. 1977 had 1,186 records.

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

Records on 05-15 in each year
Year	Records
1820	1
1825	1
1831	1
1832	1
1837	2
1845	1
1847	2
1848	1
1855	2
1857	2
1859	1
1862	1
1863	1
1865	1
1866	2
1867	1
1868	2
1870	1
1871	3
1874	2
1876	4
1878	1
1879	2
1881	1
1883	1
1885	1
1886	2
1888	3
1891	3
1893	5
1894	2
1895	4
1896	2
1897	4
1898	3
1899	9
1900	9
1901	2
1902	9
1903	4
1904	13
1905	16
1906	10
1907	27
1908	25
1909	89
1910	27
1911	27
1912	26
1913	60
1914	16
1915	236
1916	27
1917	80
1918	133
1919	25
1920	58
1921	92
1922	30
1923	125
1924	174
1925	100
1926	161
1927	191
1928	144
1929	161
1930	136
1931	459
1932	368
1933	439
1934	227
1935	288
1936	372
1937	373
1938	393
1939	351
1940	179
1941	454
1942	701
1943	568
1944	630
1945	588
1946	238
1947	334
1948	264
1949	363
1950	260
1951	736
1952	476
1953	426
1954	355
1955	538
1956	466
1957	521
1958	605
1959	764
1960	291
1961	508
1962	1,128
1963	782
1964	347
1965	320
1966	389
1967	609
1968	1,019
1969	790
1970	512
1971	351
1972	484
1973	818
1974	1,230
1975	372
1976	803
1977	1,186
1978	922
1979	404
1980	625
1981	586
1982	500
1983	1,215
1984	1,059
1985	649
1986	679
1987	1,073
1988	643
1989	552
1990	776
1991	1,179
1992	944
1993	784
1994	910
1995	1,750
1996	1,452
1997	1,175
1998	1,641
1999	810
2000	850
2001	1,280
2002	801
2003	1,023
2004	1,046
2005	767
2006	955
2007	949
2008	995
2009	675
2010	1,088
2011	1,298
2012	751
2013	1,081
2014	1,411
2015	717
2016	890
2017	435
2018	1,074
2019	627
2020	472
2021	412
2022	847
2023	566
2024	596
2025	801
2026	481

Download the Data

Data for records on 1977-05-15: 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	881
20 to 40	108
40 to 60	32
60 to 80	19
80 to 100	0
100 to 120	1
120 to 140	1