No it has not. That's impossible! I once read in the Guinnes Book of Weather Records that red snow fell in I think Switzerland. I would guess that dust was picked up from say the Sahara, then hits...
No
north of it is delray and south is pompano
Yes. Some regions in the Sierra Madre have annual snowfalls. Some photos are provided in the related links section.
Snow is unknown at Cairo , although it said it snowed in January 1639, but it could have been small hail.