June 1: Start of the Central Pacific and Atlantic hurricane seasons
2011: An EF3 tornado killed 3 people in south-central Massachusetts.
June 2
1982: Hurricane Alberto formed just north of the Yucatán Peninsula, eventually causing devastating flooding in Cuba which killed 23 people.
June 3
2010: Cyclone Phet made landfall near Al Ashkharah, Oman, causing major flooding in the desert nation.
June 4
1958: A tornado outbreak killed 28 people in Wisconsin, including 21 deaths from a single F5 tornado.
June 5
1972: The United Nations Conference on the Human Environment began in Stockholm, Sweden.
June 6
1973: Hurricane Ava became the earliest Category 5 hurricane on record in the Pacific Ocean.
June 7
1997: Cyclone Keli formed in the South Pacific Ocean, the first tropical cyclone ever recorded in the month of June in that region.
June 8
1924: Samuel B. Avis, a former member of United States House of Representatives, was struck and killed by lightning in Charleston, West Virginia.
June 9
1984: A tornado outbreak struck the Ivanovo and Yaroslavl regions of Russia (then the Soviet Union), killing more than 400 people.
June 10
1682: The first known tornado in the history of Connecticut caused severe tree damage in the southwestern part of the state.
June 11
2005: Tropical Storm Arlene, the first tropical cyclone of the hyperactive 2005 Atlantic hurricane season, made landfall on the Florida Panhandle.
June 12
1975: The Nimbus 6 weather satellite was launched.
June 13
2006: The North American Mesoscale Model officially replaced the obsolete Eta model for mesoscale numerical weather prediction in the United States.
June 14
2018: Hurricane Bud made landfall as a weak tropical storm in Baja California Sur, Mexico.
June 15
2010: Severe flooding struck the department of Var, France, killing 25 people.
June 16
1974: Hurricane Dolores made landfall near Acapulco, Guerrero, Mexico, causing widespread flooding and landslides that killed 18 people.
June 17
1946: One of the deadliest tornadoes in Canadian history struck Windsor, Ontario, killing 17 people.
June 18
1993: Météo-France, the national meteorological institution for France, was founded.
June 19
1999: The QuikSCAT satellite, which measured winds over the world's oceans for more than 10 years, was launched.
June 20
1957: An extremely damaging F5 tornado killed 11 people in Fargo, North Dakota.
June 21
2004: Typhoon Dianmu made landfall on Honshu, Japan, killing 4 people. Another 2 were killed in South Korea.
June 22
1972: Hurricane Agnes made landfall as a strong tropical storm near New York City. It would cause devastating flooding inland, killing 113 people and causing more than $2 billion in damage (1972 USD).
June 23
1981: The NOAA-7 weather satellite was launched into a polar orbit. NOAA-6 returned a wide variety of observations of the earth, atmosphere, oceans, and space for 5 years until a power failure in June 1986.
June 24
1996: Hurricane Alma drifted just off the coast of the Mexican state of Michoacán, producing heavy rains and winds of up to 100 miles per hour (160 km/h) which would kill 20 people.
June 25
1977: Roy Sullivan was struck by lightning for the seventh time and survived, a world record.
June 26
1930: A boat carrying dynamite was struck by lightning near Brockville, Ontario, causing an explosion which killed 30 people.
June 27
1957: Hurricane Audrey, one of the deadliest tropical cyclones to strike the United States in the 20th century, killed 419 people and caused more than US$150,000,000 (equivalent to about $1,560,000,000 in 2022) in damage in Louisiana and Texas.
June 28
2013: A lightning strike ignited the Yarnell Hill Fire near Yarnell, Arizona. Two days later, high temperatures, strong winds, and erratic fire behavior would result in the deaths of 19 firefighters.
June 29
1998: The Corn Belt Derecho produced wind gusts as high as 123 mph (198 km/h) as well as dozens of tornadoes in its rampage across eight states in the Midwest and Ohio Valley, killing one person and injuring 174.
June 30
2011: Tropical Storm Arlene moved ashore on Veracruz, Mexico, bringing flooding, landslides, and high winds that killed 18 people.