Extension programs around the country have Master Gardener Programs.  Typically, master gardeners receive extensive training and then answer questions via phone, speak at public events and participate in community gardening displays, according to Wikipedia.

If you have a Master Gardener program in your area, you might be interested in the CoCoRaHS guide for Master Gardeners.  It is available online at https://cocorahs.org/Content.aspx?page=MasterGardener.  It covers a variety of topics relating climate to gardening, including growing season and frost dates, degree days and drought.