I stand corrected. I just went to my binder of information and found something about frost. I think I got it on overgrow like six months ago.
"One other thing to watch for is frost. Even a mild frost can damage plants so watching the weather closely in late September and throughout October is important. If your plants do get damaged by frost the erb is still harvestable so don't give up entirely if you fail to chop before the first frost. If by some freak chance there is a frost in early September and the buds are still very small you may want to allow the damage to occur and then let the buds finish maturing rather than harvesting a small quantity of premature buddage. This type of situation is an on the spot call and you must consider many factors, such as bud size, weather predictions for the following weeks, strain of weed, location of site, etc., before deciding. Indica varieties usually mature sooner than sativa varieties, and the best time to harvest varieties acclimated to the Northeast is from late September to mid October. Those varieties not acclimated to the Northeast, such as Columbian or Jamaican, are best left to late October or even mid November if the weather permits. One other thing you want to avoid is harvesting in the rain. Moisture can lead to problems in the drying process such as molds and fungi. The dryer the plants at the harvest date the better."
just something I dug up, so I humbly stand corrected in reference to my earlier statement....doesn't that sound cool to word things like sofisticated people?