This sounds like seasonal allergic rhinitis.
Common allergens that cause seasonal allergic rhinitis include
trees (late winter through spring)
grass (late spring and summer in most of the country; year-round in some areas)
weeds (summer through fall or frost)
ragweed (mid-August through fall or frost)
outdoor molds (especially on dry, hot windy days; also found on compost or leaf piles).
To learn how to avoid outdoor allergens