Weather Records on 9 July 1977

617 weather records were set or tied worldwide on 9 July 1977. Highest significance: Sredny Vasjugan, RU.

Key Facts for 9 July 1977

On 9 July 1977, 617 weather records were set or tied at long-record stations worldwide.
316 were record highs and 129 were record lows, counting maximum and minimum temperature.
By timescale, 6 were all-time records, 11 monthly and 600 daily.
Sredny Vasjugan set a daily record precipitation of 40.8 mm (1.6 in) on 9 July 1977.
Across 162 earlier years (1793 to 2026) the same calendar date averaged 443 records.

Record Map

617 stations

617 station records on 9 July 1977 are marked on the map, coloured by record type. Dot size shows the significance score. Made with Natural Earth.

Weather records on 9 July 1977: highest significance records shown on the map
Station	Country	Type	Value	Significance
Sredny Vasjugan	Russia	Record daily precipitation	40.8 mm (1.6 in)	52 of 100 (Notable)
Ozark	United States	Record daily precipitation	67.6 mm (2.7 in)	48 of 100 (Notable)
Chatillon-Sur-Seine	France	Record daily precipitation	32.6 mm (1.3 in)	47 of 100 (Notable)
Paripiranga	Brazil	Record daily precipitation	63.0 mm (2.5 in)	46 of 100 (Notable)
Katylga	Russia	Record daily precipitation	53.1 mm (2.1 in)	46 of 100 (Notable)
New Boston Dam 17	United States	Record daily precipitation	91.7 mm (3.6 in)	46 of 100 (Notable)
Atkinson 3SW	United States	Record daily precipitation	43.7 mm (1.7 in)	46 of 100 (Notable)
Cuba	United States	Record daily precipitation	74.4 mm (2.9 in)	44 of 100 (Notable)
Perryville Wtp	United States	Record daily precipitation	33.8 mm (1.3 in)	44 of 100 (Notable)
La Grange 1N	United States	Record high maximum temperature	38.3 C (100.9 F)	43 of 100 (Notable)
Roxboro 7 ESE	United States	Record high maximum temperature	39.4 C (102.9 F)	43 of 100 (Notable)
Itapicuru	Brazil	Record daily precipitation	30.2 mm (1.2 in)	42 of 100 (Notable)
Port Hastings	Canada	Record low minimum temperature	8.9 C (48.0 F)	42 of 100 (Notable)
Enterprise	United States	Record daily precipitation	39.4 mm (1.6 in)	41 of 100 (Notable)
Goldsboro 4 SE	United States	Record high minimum temperature	26.7 C (80.1 F)	41 of 100 (Notable)
Oneonta	United States	Record high maximum temperature	40.0 C (104.0 F)	40 of 100 (Notable)
Columbus 4 ESE	United States	Record high maximum temperature	40.6 C (105.1 F)	40 of 100 (Notable)
Boqueirao Do Patu	Brazil	Record daily precipitation	25.8 mm (1.0 in)	39 of 100 (Notable)
Mineirolandia	Brazil	Record daily precipitation	38.3 mm (1.5 in)	38 of 100 (Notable)
Mammoth Spring	United States	Record daily precipitation	40.6 mm (1.6 in)	38 of 100 (Notable)
Newkirk	United States	Record daily precipitation	66.8 mm (2.6 in)	38 of 100 (Notable)
Box Butte Exp STN	United States	Record daily precipitation	30.0 mm (1.2 in)	37 of 100 (Notable)
Raleigh State UNIV	United States	Record high maximum temperature	38.9 C (102.0 F)	37 of 100 (Notable)
Sloan 3 S	United States	Record high maximum temperature	38.9 C (102.0 F)	37 of 100 (Notable)
Dull Ctr 1SE	United States	Record daily precipitation	33.8 mm (1.3 in)	37 of 100 (Notable)
Moncure 3 SE	United States	Record high maximum temperature	40.6 C (105.1 F)	36 of 100 (Notable)
Walterboro 1 SW	United States	Record high maximum temperature	39.4 C (102.9 F)	36 of 100 (Notable)
Springfield Exp STN	United States	Record daily precipitation	62.7 mm (2.5 in)	36 of 100 (Notable)
Hot Springs	United States	Record high minimum temperature	20.0 C (68.0 F)	36 of 100 (Notable)
Chickamauga 2 SW	United States	Record high maximum temperature	39.4 C (102.9 F)	35 of 100 (Notable)
Belhaven 1 SE	United States	Record high minimum temperature	26.7 C (80.1 F)	35 of 100 (Notable)
Salisbury	United States	Record high maximum temperature	39.4 C (102.9 F)	35 of 100 (Notable)
Conceicao	Brazil	Record daily precipitation	26.0 mm (1.0 in)	34 of 100 (Routine)
Chapulco	Mexico	Record high minimum temperature	18.3 C (64.9 F)	34 of 100 (Routine)
Meadowlands 9 S	United States	Record low minimum temperature	1.7 C (35.1 F)	34 of 100 (Routine)
Winnibigoshish Dam	United States	Record low minimum temperature	6.1 C (43.0 F)	34 of 100 (Routine)
Limoeiro de Anadia	Brazil	Record daily precipitation	40.7 mm (1.6 in)	33 of 100 (Routine)
Elberton 2 N	United States	Record high maximum temperature	39.4 C (102.9 F)	33 of 100 (Routine)
Leech Lake	United States	Record low minimum temperature	5.6 C (42.1 F)	33 of 100 (Routine)
Ripley	United States	Record high maximum temperature	37.8 C (100.0 F)	33 of 100 (Routine)
Siler City 2 N	United States	Record high maximum temperature	40.0 C (104.0 F)	33 of 100 (Routine)
Ellendale	United States	Record low minimum temperature	5.6 C (42.1 F)	33 of 100 (Routine)
Bedford	United States	Record high minimum temperature	23.3 C (73.9 F)	33 of 100 (Routine)
Nigniy_Studeniy	Ukraine	Record daily precipitation	49.2 mm (1.9 in)	32 of 100 (Routine)
Hayden	United States	Record high minimum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Millerstown	United States	Record daily precipitation	52.1 mm (2.1 in)	32 of 100 (Routine)
Sandy Lake Dam Libby	United States	Record low minimum temperature	5.0 C (41.0 F)	32 of 100 (Routine)
Scotland Neck	United States	Record high minimum temperature	24.4 C (75.9 F)	32 of 100 (Routine)
Blackville 3 W	United States	Record high maximum temperature	39.4 C (102.9 F)	32 of 100 (Routine)
Wagner	United States	Record daily precipitation	64.8 mm (2.6 in)	32 of 100 (Routine)
Bellows Falls	United States	Record low maximum temperature	16.7 C (62.1 F)	32 of 100 (Routine)
Middlebourne 3 ESE	United States	Record high minimum temperature	22.8 C (73.0 F)	32 of 100 (Routine)
Araruna	Brazil	Record daily precipitation	35.7 mm (1.4 in)	31 of 100 (Routine)
Clayton 1 SSW	United States	Record high maximum temperature	35.0 C (95.0 F)	31 of 100 (Routine)
Forsyth 6 NNW	United States	Record high maximum temperature	37.2 C (99.0 F)	31 of 100 (Routine)
Toccoa	United States	Record high minimum temperature	23.3 C (73.9 F)	31 of 100 (Routine)
Concord	United States	Record high maximum temperature	40.6 C (105.1 F)	31 of 100 (Routine)
Fayetteville (Pwc)	United States	Record high minimum temperature	27.2 C (81.0 F)	31 of 100 (Routine)
Tarboro 1 S	United States	Record high maximum temperature	39.4 C (102.9 F)	31 of 100 (Routine)
Delaware	United States	Record high minimum temperature	21.7 C (71.1 F)	31 of 100 (Routine)

Counts by Type and Timescale

617 records

Records set or tied on 9 July 1977 by type: Highest daily maximum 175, Lowest daily maximum 61, Highest daily minimum 141, Lowest daily minimum 68, Heaviest daily rainfall 172.

Records on 9 July 1977 by type
Record type	Records
Highest daily maximum	175
Lowest daily maximum	61
Highest daily minimum	141
Lowest daily minimum	68
Heaviest daily rainfall	172
Heaviest daily snowfall	0
Deepest snow cover	0

Records on 9 July 1977 by timescale: all-time 6, monthly 11, daily 600.

How Much Records Were Beaten By

467 broken records

Margins by which the 467 broken records beat the old ones, in degrees Celsius for temperature and millimetres for precipitation and snow; the largest margin was 57.4. Ties are not counted.

Top 20 by Significance

9 July 1977

Top 20 records on 9 July 1977 by significance
Date	Station	Record	Value	Beat old record by	Old record stood	Significance
9 July 1977	Sredny Vasjugan, RU	daily rain	40.8 mm (1.6 in)	24.4 mm (1.0 in)	34 years	52 of 100 (Notable)
9 July 1977	Ozark, US	daily rain	67.6 mm (2.7 in)	27.0 mm (1.1 in)	72 years	48 of 100 (Notable)
9 July 1977	Chatillon-Sur-Seine, FR	daily rain	32.6 mm (1.3 in)	14.8 mm (0.6 in)	60 years	47 of 100 (Notable)
9 July 1977	Paripiranga, BR	daily rain	63.0 mm (2.5 in)	39.0 mm (1.5 in)	2 years	46 of 100 (Notable)
9 July 1977	Katylga, RU	daily rain	53.1 mm (2.1 in)	41.4 mm (1.6 in)	12 years	46 of 100 (Notable)
9 July 1977	New Boston Dam 17, US	daily rain	91.7 mm (3.6 in)	57.4 mm (2.3 in)	8 years	46 of 100 (Notable)
9 July 1977	Atkinson 3SW, US	daily rain	43.7 mm (1.7 in)	22.6 mm (0.9 in)	67 years	46 of 100 (Notable)
9 July 1977	Cuba, US	daily rain	74.4 mm (2.9 in)	49.0 mm (1.9 in)	16 years	44 of 100 (Notable)
9 July 1977	Perryville Wtp, US	daily rain	33.8 mm (1.3 in)	25.2 mm (1.0 in)	67 years	44 of 100 (Notable)
9 July 1977	La Grange 1N, US	daily high max	38.3 C (100.9 F)	2.7 C (4.9 F)	83 years	43 of 100 (Notable)
9 July 1977	Roxboro 7 ESE, US	daily high max	39.4 C (102.9 F)	3.3 C (5.9 F)	83 years	43 of 100 (Notable)
9 July 1977	Itapicuru, BR	daily rain	30.2 mm (1.2 in)	18.9 mm (0.7 in)	4 years	42 of 100 (Notable)
9 July 1977	Port Hastings, CA	daily low min	8.9 C (48.0 F)	1.1 C (2.0 F)	97 years	42 of 100 (Notable)
9 July 1977	Enterprise, US	daily rain	39.4 mm (1.6 in)	15.0 mm (0.6 in)	79 years	41 of 100 (Notable)
9 July 1977	Goldsboro 4 SE, US	all-time high min	26.7 C (80.1 F)	0.6 C (1.1 F)	40 years	41 of 100 (Notable)
9 July 1977	Oneonta, US	daily high max	40.0 C (104.0 F)	3.9 C (7.0 F)	64 years	40 of 100 (Notable)
9 July 1977	Columbus 4 ESE, US	daily high max	40.6 C (105.1 F)	2.3 C (4.1 F)	83 years	40 of 100 (Notable)
9 July 1977	Boqueirao Do Patu, BR	daily rain	25.8 mm (1.0 in)	18.5 mm (0.7 in)	55 years	39 of 100 (Notable)
9 July 1977	Mineirolandia, BR	daily rain	38.3 mm (1.5 in)	38.3 mm (1.5 in)	44 years	38 of 100 (Notable)
9 July 1977	Mammoth Spring, US	daily rain	40.6 mm (1.6 in)	17.7 mm (0.7 in)	67 years	38 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

1793 to 1977

Records set or tied on this calendar date in each year from 1793 to 1977. 1977 had 617 records.

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

Records on 07-09 in each year
Year	Records
1793	1
1815	3
1826	1
1828	2
1837	1
1845	2
1847	1
1852	1
1856	1
1859	1
1860	1
1861	1
1865	1
1867	4
1868	1
1870	2
1871	1
1873	1
1874	2
1875	1
1876	4
1879	1
1886	3
1887	2
1888	4
1889	1
1890	2
1891	3
1892	3
1893	3
1894	3
1895	2
1896	4
1897	2
1898	4
1899	5
1900	10
1901	10
1902	8
1903	15
1904	31
1905	28
1906	4
1907	10
1908	16
1909	16
1910	19
1911	26
1912	28
1913	42
1914	54
1915	42
1916	43
1917	19
1918	60
1919	33
1920	28
1921	73
1922	145
1923	90
1924	140
1925	135
1926	242
1927	123
1928	115
1929	250
1930	436
1931	202
1932	216
1933	444
1934	339
1935	433
1936	1,128
1937	274
1938	196
1939	345
1940	319
1941	273
1942	324
1943	252
1944	415
1945	371
1946	436
1947	684
1948	377
1949	433
1950	522
1951	502
1952	694
1953	450
1954	479
1955	513
1956	438
1957	385
1958	472
1959	483
1960	332
1961	564
1962	253
1963	1,029
1964	425
1965	444
1966	428
1967	216
1968	645
1969	619
1970	471
1971	406
1972	606
1973	588
1974	1,013
1975	567
1976	740
1977	617
1978	882
1979	721
1980	970
1981	1,009
1982	598
1983	1,039
1984	783
1985	1,228
1986	843
1987	882
1988	1,109
1989	965
1990	770
1991	1,295
1992	1,126
1993	1,454
1994	1,151
1995	939
1996	1,690
1997	930
1998	1,403
1999	952
2000	1,055
2001	965
2002	1,127
2003	906
2004	824
2005	1,373
2006	965
2007	949
2008	1,188
2009	1,165
2010	1,477
2011	1,047
2012	904
2013	478
2014	806
2015	1,221
2016	631
2017	638
2018	555
2019	602
2020	614
2021	1,198
2022	674
2023	833
2024	1,530
2025	696
2026	508

Download the Data

Data for records on 1977-07-09: 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	39
20 to 30	10
30 to 40	6
40 to 50	2
50 to 60	1