Sentence:  Occasionally , you may come across one or two bumblebees in the <WSD>cold</WSD> season , when you are turning over sods in your garden , but you have to be a really keen observer to see them at all . 
Meaning of the word marked with <WSD> tags:  having a low or inadequate temperature or feeling a sensation of coldness or having been made cold by e.g. ice or refrigeration