Weather Records on 1 August 1977

636 weather records were set or tied worldwide on 1 August 1977. Highest significance: Philadelphia City, US.

Key Facts for 1 August 1977

On 1 August 1977, 636 weather records were set or tied at long-record stations worldwide.
243 were record highs and 187 were record lows, counting maximum and minimum temperature.
By timescale, 2 were all-time records, 36 monthly and 598 daily.
Philadelphia City set a daily record precipitation of 124.0 mm (4.9 in) on 1 August 1977.
Across 164 earlier years (1797 to 2026) the same calendar date averaged 440 records.

Record Map

636 stations

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

Weather records on 1 August 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Philadelphia City	United States	Record daily precipitation	124.0 mm (4.9 in)	79 of 100 (Major)
Denton 2 SE	United States	Record daily precipitation	60.2 mm (2.4 in)	59 of 100 (Notable)
Kola-In-Murman	Russia	Record daily precipitation	60.4 mm (2.4 in)	54 of 100 (Notable)
Bowie	United States	Record daily precipitation	53.3 mm (2.1 in)	53 of 100 (Notable)
Podor	Senegal	Record high minimum temperature	28.2 C (82.8 F)	51 of 100 (Notable)
Bonham 3NNE	United States	Record daily precipitation	55.9 mm (2.2 in)	50 of 100 (Notable)
Brohovo	Russia	Record daily precipitation	46.9 mm (1.8 in)	49 of 100 (Notable)
Hope 3 NE	United States	Record daily precipitation	82.3 mm (3.2 in)	49 of 100 (Notable)
Arad	Romania	Record daily precipitation	26.4 mm (1.0 in)	48 of 100 (Notable)
Atka	Russia	Record daily precipitation	29.4 mm (1.2 in)	48 of 100 (Notable)
Neshaminy Falls	United States	Record daily precipitation	81.3 mm (3.2 in)	47 of 100 (Notable)
Najahan	Russia	Record daily precipitation	34.9 mm (1.4 in)	46 of 100 (Notable)
Cape Leeuwin	Australia	Record daily precipitation	33.4 mm (1.3 in)	43 of 100 (Notable)
Henrietta	United States	Record daily precipitation	90.7 mm (3.6 in)	43 of 100 (Notable)
Murmansk	Russia	Record daily precipitation	56.5 mm (2.2 in)	42 of 100 (Notable)
Trenton	United States	Record daily precipitation	71.1 mm (2.8 in)	42 of 100 (Notable)
Ogilvie	Australia	Record daily precipitation	26.0 mm (1.0 in)	41 of 100 (Notable)
Poljarnoe	Russia	Record daily precipitation	39.6 mm (1.6 in)	41 of 100 (Notable)
Pilot Point Isl du Boi	United States	Record daily precipitation	61.0 mm (2.4 in)	41 of 100 (Notable)
Trenton	United States	Record daily precipitation	66.0 mm (2.6 in)	40 of 100 (Notable)
Olonec	Russia	Record daily precipitation	59.0 mm (2.3 in)	39 of 100 (Notable)
Independence	United States	Record low minimum temperature	7.2 C (45.0 F)	39 of 100 (Notable)
Greenville Kgvl Radio	United States	Record daily precipitation	32.5 mm (1.3 in)	39 of 100 (Notable)
Bradford Cntrl Fs	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Lakehurst AP	United States	Record daily precipitation	73.9 mm (2.9 in)	38 of 100 (Notable)
Albacete Los Llanos	Spain	Record low minimum temperature	9.2 C (48.6 F)	37 of 100 (Notable)
Kovel'	Ukraine	Record daily precipitation	94.0 mm (3.7 in)	36 of 100 (Notable)
Forestburg 5 S	United States	Record daily precipitation	36.1 mm (1.4 in)	36 of 100 (Notable)
Plauen	Germany	Record low maximum temperature	14.0 C (57.2 F)	35 of 100 (Notable)
Dequeen	United States	Record daily precipitation	36.8 mm (1.4 in)	35 of 100 (Notable)
Talbotton	United States	Record high minimum temperature	25.0 C (77.0 F)	35 of 100 (Notable)
Ness City	United States	Record low minimum temperature	11.1 C (52.0 F)	35 of 100 (Notable)
Trenton	United States	Record low minimum temperature	10.0 C (50.0 F)	35 of 100 (Notable)
Allegany Sp	United States	Record daily precipitation	38.1 mm (1.5 in)	35 of 100 (Notable)
Wellington	United States	Record daily precipitation	31.0 mm (1.2 in)	35 of 100 (Notable)
Forest Grove	Australia	Record daily precipitation	47.2 mm (1.9 in)	34 of 100 (Routine)
Tuzantla (Smn)	Mexico	Record high minimum temperature	25.6 C (78.1 F)	34 of 100 (Routine)
Ukiah	United States	Record high minimum temperature	17.8 C (64.0 F)	34 of 100 (Routine)
Turners Falls	United States	Record daily precipitation	34.8 mm (1.4 in)	34 of 100 (Routine)
McKinney Muni AP	United States	Record daily precipitation	46.7 mm (1.8 in)	34 of 100 (Routine)
Lake Spaulding	United States	Record high maximum temperature	36.7 C (98.1 F)	33 of 100 (Routine)
Carter Twr	United States	Record daily precipitation	66.5 mm (2.6 in)	33 of 100 (Routine)
Hollis 5E	United States	Record daily precipitation	45.0 mm (1.8 in)	33 of 100 (Routine)
Riverside 7 SSW	United States	Record high maximum temperature	40.6 C (105.1 F)	33 of 100 (Routine)
Sherman	United States	Record daily precipitation	28.2 mm (1.1 in)	33 of 100 (Routine)
Sulphur Springs	United States	Record daily precipitation	43.9 mm (1.7 in)	33 of 100 (Routine)
Altastenberg	Germany	Record low maximum temperature	9.9 C (49.8 F)	32 of 100 (Routine)
Lviv	Ukraine	Record daily precipitation	51.3 mm (2.0 in)	32 of 100 (Routine)
Healdsburg	United States	Record high minimum temperature	17.2 C (63.0 F)	32 of 100 (Routine)
Indianola 1SW	United States	Record low minimum temperature	8.9 C (48.0 F)	32 of 100 (Routine)
Marietta 5SW	United States	Record daily precipitation	41.1 mm (1.6 in)	32 of 100 (Routine)
Karnack	United States	Record daily precipitation	59.2 mm (2.3 in)	32 of 100 (Routine)
Freiburg	Germany	Record low maximum temperature	18.4 C (65.1 F)	31 of 100 (Routine)
Kislovodsk	Russia	Record low minimum temperature	8.0 C (46.4 F)	31 of 100 (Routine)
Yosemite Park HQ	United States	Record high maximum temperature	41.7 C (107.1 F)	31 of 100 (Routine)
Lewiston	United States	Record daily precipitation	26.4 mm (1.0 in)	31 of 100 (Routine)
Altus Irig Rsch STN	United States	Record daily precipitation	32.3 mm (1.3 in)	31 of 100 (Routine)
St Joseph 3 N	United States	Record high minimum temperature	25.0 C (77.0 F)	30 of 100 (Routine)
Grafton	United States	Record daily precipitation	26.9 mm (1.1 in)	30 of 100 (Routine)
South Wales Emery Park	United States	Record daily precipitation	42.7 mm (1.7 in)	30 of 100 (Routine)

Counts by Type and Timescale

636 records

Records set or tied on 1 August 1977 by type: Highest daily maximum 137, Lowest daily maximum 83, Highest daily minimum 106, Lowest daily minimum 104, Heaviest daily rainfall 206.

Records on 1 August 1977 by type
Record type	Records
Highest daily maximum	137
Lowest daily maximum	83
Highest daily minimum	106
Lowest daily minimum	104
Heaviest daily rainfall	206
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 1 August 1977 by timescale: all-time 2, monthly 36, daily 598.

How Much Records Were Beaten By

493 broken records

Margins by which the 493 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 76.2. Ties are not counted.

Top 20 by Significance

1 August 1977

Top 20 records on 1 August 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
1 August 1977	Philadelphia City, US	daily rain	124.0 mm (4.9 in)	75.0 mm (3.0 in)	98 years	79 of 100 (Major)
1 August 1977	Denton 2 SE, US	daily rain	60.2 mm (2.4 in)	51.3 mm (2.0 in)	63 years	59 of 100 (Notable)
1 August 1977	Kola-In-Murman, RU	monthly rain	60.4 mm (2.4 in)	13.7 mm (0.5 in)	27 years	54 of 100 (Notable)
1 August 1977	Bowie, US	daily rain	53.3 mm (2.1 in)	36.0 mm (1.4 in)	78 years	53 of 100 (Notable)
1 August 1977	Podor, SN	monthly high min	28.2 C (82.8 F)	0.2 C (0.4 F)	118 years	51 of 100 (Notable)
1 August 1977	Bonham 3NNE, US	daily rain	55.9 mm (2.2 in)	45.0 mm (1.8 in)	68 years	50 of 100 (Notable)
1 August 1977	Brohovo, RU	daily rain	46.9 mm (1.8 in)	35.7 mm (1.4 in)	18 years	49 of 100 (Notable)
1 August 1977	Hope 3 NE, US	daily rain	82.3 mm (3.2 in)	76.2 mm (3.0 in)	4 years	49 of 100 (Notable)
1 August 1977	Arad, RO	daily rain	26.4 mm (1.0 in)	8.4 mm (0.33 in)	96 years	48 of 100 (Notable)
1 August 1977	Atka, RU	daily rain	29.4 mm (1.2 in)	20.1 mm (0.8 in)	27 years	48 of 100 (Notable)
1 August 1977	Neshaminy Falls, US	daily rain	81.3 mm (3.2 in)	45.7 mm (1.8 in)	51 years	47 of 100 (Notable)
1 August 1977	Najahan, RU	daily rain	34.9 mm (1.4 in)	24.8 mm (1.0 in)	10 years	46 of 100 (Notable)
1 August 1977	Cape Leeuwin, AU	daily rain	33.4 mm (1.3 in)	11.8 mm (0.5 in)	64 years	43 of 100 (Notable)
1 August 1977	Henrietta, US	daily rain	90.7 mm (3.6 in)	34.1 mm (1.3 in)	44 years	43 of 100 (Notable)
1 August 1977	Murmansk, RU	all-time rain	56.5 mm (2.2 in)	10.3 mm (0.4 in)	2 years	42 of 100 (Notable)
1 August 1977	Trenton, US	daily rain	71.1 mm (2.8 in)	70.6 mm (2.8 in)	22 years	42 of 100 (Notable)
1 August 1977	Ogilvie, AU	daily rain	26.0 mm (1.0 in)	10.8 mm (0.4 in)	64 years	41 of 100 (Notable)
1 August 1977	Poljarnoe, RU	monthly rain	39.6 mm (1.6 in)	8.6 mm (0.34 in)	27 years	41 of 100 (Notable)
1 August 1977	Pilot Point Isl du Boi, US	daily rain	61.0 mm (2.4 in)	47.3 mm (1.9 in)	23 years	41 of 100 (Notable)
1 August 1977	Trenton, US	daily rain	66.0 mm (2.6 in)	30.9 mm (1.2 in)	55 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

1797 to 1977

Records set or tied on this calendar date in each year from 1797 to 1977. 1977 had 636 records.

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

Records on 08-01 in each year
Year	Records
1797	1
1816	2
1829	1
1833	1
1834	2
1836	1
1838	1
1842	1
1851	1
1856	1
1858	3
1859	1
1861	1
1862	1
1863	1
1865	1
1868	1
1869	2
1873	1
1874	1
1875	3
1876	1
1878	1
1879	1
1881	3
1883	1
1886	2
1887	1
1890	1
1891	7
1892	4
1893	3
1894	1
1895	3
1896	4
1897	2
1898	3
1899	1
1900	1
1901	3
1902	5
1903	19
1904	10
1905	12
1906	18
1907	13
1908	18
1909	15
1910	30
1911	46
1912	49
1913	25
1914	17
1915	49
1916	16
1917	108
1918	55
1919	32
1920	101
1921	87
1922	44
1923	203
1924	93
1925	281
1926	252
1927	266
1928	132
1929	161
1930	252
1931	362
1932	408
1933	487
1934	448
1935	547
1936	636
1937	492
1938	523
1939	335
1940	333
1941	341
1942	388
1943	398
1944	410
1945	975
1946	336
1947	401
1948	354
1949	324
1950	552
1951	420
1952	391
1953	565
1954	462
1955	796
1956	441
1957	270
1958	389
1959	352
1960	677
1961	404
1962	602
1963	270
1964	883
1965	669
1966	383
1967	250
1968	625
1969	453
1970	482
1971	1,135
1972	609
1973	766
1974	526
1975	915
1976	886
1977	636
1978	706
1979	580
1980	906
1981	668
1982	742
1983	931
1984	532
1985	987
1986	846
1987	999
1988	880
1989	1,301
1990	927
1991	740
1992	1,024
1993	907
1994	1,217
1995	1,513
1996	1,118
1997	904
1998	1,281
1999	1,707
2000	1,020
2001	1,079
2002	1,249
2003	1,155
2004	740
2005	878
2006	1,655
2007	746
2008	795
2009	932
2010	1,182
2011	1,191
2012	850
2013	542
2014	853
2015	864
2016	499
2017	758
2018	987
2019	479
2020	838
2021	1,009
2022	915
2023	627
2024	879
2025	785
2026	1,085

Download the Data

Data for records on 1977-08-01: 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	409
10 to 20	49
20 to 30	16
30 to 40	9
40 to 50	5
50 to 60	2
60 to 70	0
70 to 80	3