Perhaps it's not surprising, then, that a lot of his short stories first saw the light of day in the month of July. Take a look:
July 1941
To Make a Long Story Much, Much ShorterJuly 1942
Eat, Drink and be WaryJuly 1943
The ScytheJuly 1944
Killer, Come Back to MeThe Long Night
There Was an Old Woman
July 1945
Corpse CarnivalThe Dead Man
Dead Men Rise Up Never
July 1946
ChrysalisThe Night
July 1948
The Undead DieJuly 1949
The ChangelingThe Lonely Ones
July 1950
The City (under the title "Purpose")The Illustrated Man
July 1954
The Wonderful Death of Dudley StoneJuly 1955
The TrolleyJuly 1957
The Day it Rained ForeverJuly 1964
The Cold Wind and the WarmJuly 1966
The Dragon Danced at Midnight (under the title "The Year the Glop Monster Won the Golden Lion at Cannes")July 1975
The Burning ManJuly 1984
By the Numbers!July 1988
The Thing at the Top of the StairsJuly 1995
Grand TheftIf you want to track any of these stories down, use my Short Story Finder to locate them in Bradbury's many books.