- Jul 1 Stampede Pass, Washington is covered with 6" of snow
- Jul 1 Sony introduces the Walkman, first popular portable cassette player
Event of Interest
Jul 2 Susan B. Anthony dollar is issued, 1st US coin to honor a woman

Susan B. Anthony
- Jul 4 Algerian ex-president Ben Bella freed
Wimbledon Women's Tennis
Jul 6 Wimbledon Women's Tennis: Martina Navratilova successfully defends her title beating Chris Evert Lloyd 6-4, 6-4

Martina Navratilova

Chris Evert
- Jul 6 IRA bomb explodes in British consulate in Antwerp
Wimbledon Men's Tennis
Jul 7 Wimbledon Men's Tennis: Björn Borg beats American Roscoe Tanner 6-7, 6-1, 3-6, 6-3, 6-4 for his 4th consecutive Wimbledon title

Björn Borg

Roscoe Tanner
Voyager 2 Spacecraft
Jul 8 Voyager 2 takes 1st ever photo of Jupiter's satellite Adrastea (J14)
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Event of Interest
Jul 10 Chuck Berry sentenced to 4 months for $200,000 in tax evasion

Chuck Berry
Down With Disco!
Jul 12 "Disco Demolition Night" at Comiskey Park: fans go wild destroying disco records and cause the White Sox to forfeit second game of a doubleheader to the Detroit Tigers
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Event of Interest
Jul 13 Calif's Nolan Ryan and Boston's Steve Renko each lose no-hitters in 9th

Nolan Ryan
Music Single
Jul 13 George Harrison releases single "Faster"

George Harrison
Event of Interest
Jul 16 Premier/pres al-Bakr of Iraq is succeeded by Saddam Hussein

Saddam Hussein
Event of Interest
Jul 17 David Gower 200* in England score of 5-633 v India at Edgbaston

David Gower
- Jul 17 Nicaraguan dictator Anastasio Somoza Debayle flees to Miami
World Record
Jul 17 Sebastian Coe runs world record 3:49 mile in Oslo

Sebastian Coe
- Jul 17 Simone Veil becomes chairman of European Parliament
- Jul 18 Gold hits record $303.85 an ounce in London
- Jul 18 USSR performs nuclear Test at Eastern Kazakh/Semipalitinsk USSR
- Jul 19 2 supertankers collide off Tobago-260,000 tons of oil spill
- Jul 19 Maritza Sayalero, 18, of Venezuela, crowned 28th Miss Universe
- Jul 19 Nicaragua Liberation Day; Sandinistas take over from Anastasio Somoza Debayle
- Jul 19 Patricia Harris becomes sect of HEW
- Jul 20 44-kg Newfoundland dog pulls 2293-kg load, Bothell, Washington
British Golf Open
Jul 21 British Open Men's Golf, Royal Lytham & St. Annes: Spaniard Seve Ballesteros wins by 3 from Jack Nicklaus & Ben Crenshaw; Nicklaus runner-up for record 7th time

Seve Ballesteros

Jack Nicklaus
Baseball Record
Jul 23 George Brett gets his 1,000th hit

George Brett
Appointment of Interest
Jul 24 US President Jimmy Carter names Paul Volcker as Chairman of the Federal Reserve

Paul Volcker

Jimmy Carter
Event of Interest
Jul 24 Red Sox Carl Yastrzemski hits his 400th HR

Carl Yastrzemski
- Jul 25 109 cm rainfall at Alvin Texas (state record)
- Jul 26 Estimated 109 cm (43") of rain falls in Alvin, Texas (national record)
- Jul 27 "Broadway Opry '79" opens at St James Theater NYC for 6 performances
- Jul 27 France performs nuclear Test
- Jul 28 Dave Kingman becomes 6th to have a 2nd 3 HR game
- Jul 28 France performs nuclear Test
Golf Tournament
Jul 29 Canadian Open Women's Golf (Peter Jackson Classic), St. George's CC: Amy Alcott wins by 3 from Nancy Lopez for her first major title

Nancy Lopez
- Jul 31 "But Never Jam Today" opens at Longacre Theater NYC for 7 performances