As an old nurseryman I can attest to micro-climtes being very normal...sometimes as little as a block away...and if you want to be technical, the northside of your home has a different climate than the southside...
Soil type, vegitation, moisture (humidity) elevation, exposure to wind and sun, all contribute to temperature variation....we often have frost at our golf course when the on site air temp is two or three degrees above freezing...
Surprisingly, the Flathead valley here in western Montana grows a mean sweet cherry crop, inspite of high elevation, and cold winter weather due to the moderating effects of the largest natural body of fresh water west of the Great Lakes....that is until that rare winter when it doesn't snow and the lake totally freezes over...