July is my very favorite month of the year because it just screams "summertime" to me . . . I LOVE heat and long days. Whenever a Couple asks me about what month is the best time for the best weather and the best chance of not having rain I always tell them July, if they don't mind if it's hot.
The second and third weeks of the month feature the most overall flowering of the entire season. July considerations are the heat but also usually the most reliable to avoid rain.