Summers (mid May, June, July, August & early September) in Tallahassee are oppresively hot & humid.  You must limit outdoor activity particularly if you are from a northern climate & not aclimated to the heat.  This is a good time to visit museums or head down to the beach.  However Spring and Fall are wonderful.  Spring temperatures (late February to Mid May) are in the 70's during the day & cool off at night.  The entire city is in bloom & just driving down the road you can catch a whiff of whisteria everywhere.    Fall (Late September to early December) is also very nice.  Again with highs in the upper 60's to upper 70s and sweater weather at night.  Tallahassee is a city of trees & there are some changing colors in the trees.  The college students are back in town and there is an air of excitement everywhere as native Tallahasseans start to leave their airconditioned cacoons. Tallahassee does have a few days which dip below freezing every year.  Winters can also be rainy though we seldom have days and days of rain.  North Florida does expereince 4 seasons though winters are  mild.   Tallahassee (knock on wood) has not expereinced a hurricane in over 20 years.