Dew on the window means that it must be cold outside. It's just relative. For 2 months we had nights down in the 60's and last week it hit the 50's. Last night it dropped to 39f in the Miami area. The thermometer in the open garage read 49f. The breadfruit tree, some Ae Ae bananas and one or two small plants will show temperature damage, but the rest of the garden will get through this very coooold night.