Ending seasons:
garden season
mowing season
baseball season
mosquito season
air conditioning season
ice cream and watermelon season
water skiing season
flip flop season
Daylight Saving Time season
hurricane season
snake and chigger season
biking season

Beginning seasons:
leaf season
hunting season
sweater season
shopping season
heating season
chili and tamales season
sneezin' season
skiing season
boot season
Standard Time season
blizard season
basketball season

Just to name a few.
Howard