for sure, geographic width is important but it's much locally microclimatic related ...
for example, my village is in small valley and there is temperature inversions, so is cooler on lover height then in hill.
so our planting season for potatoes is from march 19 to april 4 . and other villages around as will do all planting from marc 1 to march 15 ..
and there is so much superstition here...
march 19 is St. joseph day, april 4 is "quatnto duranto" which means weather on that day will be kept for next 40 days so on both of these two days there is no planting ...
also no planting on full moon and lunation (end of moon cycle )...
well, at least in theory..
and, english is not my born language, so I use translator for unknown words but it is not correct 100 % ...
I am more familiar with IT , mechanical and maritime dictionary ..
and porn, of course