Weather Records on 28 July 1977

724 weather records were set or tied worldwide on 28 July 1977. Highest significance: Mont-Aigoual, FR.

Key Facts for 28 July 1977

On 28 July 1977, 724 weather records were set or tied at long-record stations worldwide.
111 were record highs and 432 were record lows, counting maximum and minimum temperature.
By timescale, 3 were all-time records, 18 monthly and 703 daily.
Mont-Aigoual set a daily record precipitation of 66.0 mm (2.6 in) on 28 July 1977.
Across 155 earlier years (1815 to 2026) the same calendar date averaged 471 records.

Record Map

724 stations

724 station records on 28 July 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 28 July 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Mont-Aigoual	France	Record daily precipitation	66.0 mm (2.6 in)	55 of 100 (Notable)
Bella Coola	Canada	Record daily precipitation	26.0 mm (1.0 in)	52 of 100 (Notable)
Barcelona/Aeropuerto	Spain	Record daily precipitation	75.9 mm (3.0 in)	52 of 100 (Notable)
Newnan 7 WNW	United States	Record low maximum temperature	21.7 C (71.1 F)	51 of 100 (Notable)
Wharton	United States	Record daily precipitation	54.4 mm (2.1 in)	51 of 100 (Notable)
Russellville	United States	Record low maximum temperature	22.8 C (73.0 F)	50 of 100 (Notable)
Ovruch	Ukraine	Record daily precipitation	99.5 mm (3.9 in)	48 of 100 (Notable)
Forrest City	United States	Record daily precipitation	63.0 mm (2.5 in)	48 of 100 (Notable)
Bilbao Aeropuerto	Spain	Record daily precipitation	41.8 mm (1.6 in)	47 of 100 (Notable)
Gijon la Merced	Spain	Record daily precipitation	57.4 mm (2.3 in)	46 of 100 (Notable)
Hillsboro	United States	Record daily precipitation	56.6 mm (2.2 in)	45 of 100 (Notable)
Rock Rapids	United States	Record daily precipitation	49.0 mm (1.9 in)	44 of 100 (Notable)
Mariyna Gorka	Belarus	Record daily precipitation	47.6 mm (1.9 in)	43 of 100 (Notable)
Roxboro 7 ESE	United States	Record low minimum temperature	10.6 C (51.1 F)	43 of 100 (Notable)
Houston Deer Park	United States	Record daily precipitation	77.2 mm (3.0 in)	43 of 100 (Notable)
Birni N'Konni	Niger	Record daily precipitation	59.4 mm (2.3 in)	42 of 100 (Notable)
Montenegro	Brazil	Record daily precipitation	44.4 mm (1.7 in)	41 of 100 (Notable)
Huatusco de Chicuellar	Mexico	Record high minimum temperature	19.4 C (66.9 F)	41 of 100 (Notable)
Glenrock 5 ESE	United States	Record daily precipitation	38.1 mm (1.5 in)	41 of 100 (Notable)
Syktyvkar	Russia	Record high minimum temperature	21.2 C (70.2 F)	40 of 100 (Notable)
Arhangelsk	Russia	Record high maximum temperature	31.7 C (89.1 F)	39 of 100 (Notable)
Majkop	Russia	Record daily precipitation	68.7 mm (2.7 in)	39 of 100 (Notable)
Douglas	United States	Record daily precipitation	77.2 mm (3.0 in)	39 of 100 (Notable)
Nashua 2 NNW	United States	Record low minimum temperature	5.0 C (41.0 F)	39 of 100 (Notable)
Setauket Strong	United States	Record low minimum temperature	10.6 C (51.1 F)	39 of 100 (Notable)
Treherne	Canada	Record daily precipitation	29.2 mm (1.1 in)	38 of 100 (Notable)
Lajeado	Brazil	Record daily precipitation	54.0 mm (2.1 in)	36 of 100 (Notable)
Navacerrada	Spain	Record low maximum temperature	8.4 C (47.1 F)	36 of 100 (Notable)
Lugano	Switzerland	Record low maximum temperature	20.3 C (68.5 F)	36 of 100 (Notable)
Denton 2 E	United States	Record low minimum temperature	10.6 C (51.1 F)	36 of 100 (Notable)
Cape May 2 NW	United States	Record low minimum temperature	11.7 C (53.1 F)	36 of 100 (Notable)
Addison	United States	Record low minimum temperature	4.4 C (39.9 F)	36 of 100 (Notable)
Tuskahoma	United States	Record daily precipitation	38.4 mm (1.5 in)	36 of 100 (Notable)
Ft Laramie 11 NNW	United States	Record daily precipitation	28.7 mm (1.1 in)	36 of 100 (Notable)
Port Arthur	Australia	Record daily precipitation	40.2 mm (1.6 in)	35 of 100 (Notable)
Tucson WFO	United States	Record high minimum temperature	28.3 C (82.9 F)	35 of 100 (Notable)
Hot Springs 1 NNE	United States	Record low maximum temperature	24.4 C (75.9 F)	35 of 100 (Notable)
Lewiston	United States	Record low minimum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Durham	Canada	Record low minimum temperature	7.2 C (45.0 F)	34 of 100 (Routine)
Leon Virgen del Camino	Spain	Record low maximum temperature	14.0 C (57.2 F)	34 of 100 (Routine)
Segovia (Mariano Quintanilla)	Spain	Record low maximum temperature	16.2 C (61.2 F)	34 of 100 (Routine)
Plymouth-Kingston	United States	Record low minimum temperature	7.8 C (46.0 F)	34 of 100 (Routine)
Weston	United States	Record low maximum temperature	24.4 C (75.9 F)	34 of 100 (Routine)
Green Rvr	United States	Record low maximum temperature	23.3 C (73.9 F)	34 of 100 (Routine)
Vitebsk	Belarus	Record daily precipitation	49.6 mm (2.0 in)	33 of 100 (Routine)
Madrid - Retiro	Spain	Record low maximum temperature	20.0 C (68.0 F)	33 of 100 (Routine)
Wynne	United States	Record low maximum temperature	27.8 C (82.0 F)	33 of 100 (Routine)
Grafton	United States	Record low minimum temperature	1.7 C (35.1 F)	33 of 100 (Routine)
Southport 5 N	United States	Record low maximum temperature	24.4 C (75.9 F)	33 of 100 (Routine)
W Chester 2 NW	United States	Record low minimum temperature	10.0 C (50.0 F)	33 of 100 (Routine)
Charlottesville 2W	United States	Record low minimum temperature	11.7 C (53.1 F)	33 of 100 (Routine)
Mannington 1 N	United States	Record low maximum temperature	20.6 C (69.1 F)	33 of 100 (Routine)
Slutsk	Belarus	Record daily precipitation	34.4 mm (1.4 in)	32 of 100 (Routine)
Perpignan	France	Record low maximum temperature	18.3 C (64.9 F)	32 of 100 (Routine)
Jungapeo	Mexico	Record daily precipitation	39.9 mm (1.6 in)	32 of 100 (Routine)
Durbanville (Pol)	South Africa	Record daily precipitation	34.5 mm (1.4 in)	32 of 100 (Routine)
Farmerville	United States	Record low maximum temperature	28.3 C (82.9 F)	32 of 100 (Routine)
Trenton	United States	Record low minimum temperature	12.2 C (54.0 F)	32 of 100 (Routine)
Peterboro 2 S	United States	Record low minimum temperature	5.0 C (41.0 F)	32 of 100 (Routine)
Cooperstown	United States	Record low minimum temperature	4.4 C (39.9 F)	32 of 100 (Routine)

Counts by Type and Timescale

724 records

Records set or tied on 28 July 1977 by type: Highest daily maximum 59, Lowest daily maximum 134, Highest daily minimum 52, Lowest daily minimum 298, Heaviest daily rainfall 181.

Records on 28 July 1977 by type
Record type	Records
Highest daily maximum	59
Lowest daily maximum	134
Highest daily minimum	52
Lowest daily minimum	298
Heaviest daily rainfall	181
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 28 July 1977 by timescale: all-time 3, monthly 18, daily 703.

How Much Records Were Beaten By

558 broken records

Margins by which the 558 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 69.8. Ties are not counted.

Top 20 by Significance

28 July 1977

Top 20 records on 28 July 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
28 July 1977	Mont-Aigoual, FR	daily rain	66.0 mm (2.6 in)	29.0 mm (1.1 in)	80 years	55 of 100 (Notable)
28 July 1977	Bella Coola, CA	daily rain	26.0 mm (1.0 in)	19.1 mm (0.8 in)	31 years	52 of 100 (Notable)
28 July 1977	Barcelona/Aeropuerto, ES	daily rain	75.9 mm (3.0 in)	69.8 mm (2.7 in)	24 years	52 of 100 (Notable)
28 July 1977	Newnan 7 WNW, US	daily low max	21.7 C (71.1 F)	6.6 C (11.9 F)	66 years	51 of 100 (Notable)
28 July 1977	Wharton, US	daily rain	54.4 mm (2.1 in)	33.6 mm (1.3 in)	74 years	51 of 100 (Notable)
28 July 1977	Russellville, US	daily low max	22.8 C (73.0 F)	6.1 C (11.0 F)	71 years	50 of 100 (Notable)
28 July 1977	Ovruch, UA	all-time rain	99.5 mm (3.9 in)	16.4 mm (0.6 in)	15 years	48 of 100 (Notable)
28 July 1977	Forrest City, US	daily rain	63.0 mm (2.5 in)	27.2 mm (1.1 in)	70 years	48 of 100 (Notable)
28 July 1977	Bilbao Aeropuerto, ES	daily rain	41.8 mm (1.6 in)	34.4 mm (1.4 in)	16 years	47 of 100 (Notable)
28 July 1977	Gijon la Merced, ES	daily rain	57.4 mm (2.3 in)	48.6 mm (1.9 in)	8 years	46 of 100 (Notable)
28 July 1977	Hillsboro, US	daily rain	56.6 mm (2.2 in)	51.5 mm (2.0 in)	43 years	45 of 100 (Notable)
28 July 1977	Rock Rapids, US	daily rain	49.0 mm (1.9 in)	18.5 mm (0.7 in)	72 years	44 of 100 (Notable)
28 July 1977	Mariyna Gorka, BY	daily rain	47.6 mm (1.9 in)	20.3 mm (0.8 in)	32 years	43 of 100 (Notable)
28 July 1977	Roxboro 7 ESE, US	daily low min	10.6 C (51.1 F)	2.7 C (4.9 F)	83 years	43 of 100 (Notable)
28 July 1977	Houston Deer Park, US	daily rain	77.2 mm (3.0 in)	69.1 mm (2.7 in)	14 years	43 of 100 (Notable)
28 July 1977	Birni N'Konni, NE	daily rain	59.4 mm (2.3 in)	40.9 mm (1.6 in)	26 years	42 of 100 (Notable)
28 July 1977	Montenegro, BR	daily rain	44.4 mm (1.7 in)	39.8 mm (1.6 in)	19 years	41 of 100 (Notable)
28 July 1977	Huatusco de Chicuellar, MX	daily high min	19.4 C (66.9 F)	2.7 C (4.9 F)	68 years	41 of 100 (Notable)
28 July 1977	Glenrock 5 ESE, US	daily rain	38.1 mm (1.5 in)	24.9 mm (1.0 in)	15 years	41 of 100 (Notable)
28 July 1977	Syktyvkar, RU	daily high min	21.2 C (70.2 F)	2.3 C (4.1 F)	84 years	40 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

1815 to 1977

Records set or tied on this calendar date in each year from 1815 to 1977. 1977 had 724 records.

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

Records on 07-28 in each year
Year	Records
1815	1
1832	2
1834	1
1838	1
1846	1
1848	1
1853	1
1857	1
1860	2
1866	2
1867	1
1872	3
1873	1
1874	1
1882	1
1883	3
1884	3
1886	2
1887	2
1888	3
1890	3
1891	8
1892	3
1893	5
1894	4
1895	6
1896	4
1897	4
1898	6
1900	8
1901	14
1902	4
1903	16
1904	23
1905	10
1906	18
1907	39
1908	15
1909	19
1910	18
1911	61
1912	32
1913	54
1914	42
1915	36
1916	134
1917	84
1918	34
1919	53
1920	95
1921	92
1922	82
1923	193
1924	79
1925	361
1926	175
1927	129
1928	341
1929	215
1930	603
1931	464
1932	184
1933	390
1934	533
1935	354
1936	471
1937	315
1938	264
1939	339
1940	507
1941	525
1942	165
1943	429
1944	349
1945	399
1946	380
1947	630
1948	535
1949	496
1950	1,035
1951	320
1952	669
1953	251
1954	355
1955	537
1956	309
1957	298
1958	549
1959	417
1960	416
1961	357
1962	772
1963	484
1964	422
1965	422
1966	349
1967	458
1968	547
1969	737
1970	343
1971	1,161
1972	675
1973	500
1974	343
1975	537
1976	493
1977	724
1978	681
1979	692
1980	1,170
1981	1,315
1982	774
1983	1,389
1984	1,373
1985	627
1986	868
1987	1,202
1988	761
1989	936
1990	757
1991	768
1992	678
1993	1,026
1994	2,266
1995	1,251
1996	1,178
1997	1,024
1998	1,835
1999	985
2000	857
2001	938
2002	866
2003	932
2004	1,345
2005	1,387
2006	1,398
2007	998
2008	923
2009	964
2010	1,306
2011	1,143
2012	731
2013	1,428
2014	713
2015	911
2016	648
2017	476
2018	655
2019	469
2020	721
2021	831
2022	990
2023	765
2024	668
2025	845
2026	863

Download the Data

Data for records on 1977-07-28: 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	490
10 to 20	39
20 to 30	15
30 to 40	7
40 to 50	4
50 to 60	1
60 to 70	2