I hunted in over 70 degree temperature difference from a year ago. Negative -22.3 degrees and killed my 4 geese in less than an hour, only set out 7 decoys. I never heard another shot. Yesterday driving to the field it was 48 degrees , only had one shooting opportunity. One goose. I really think the hunt was more enjoyable watching the steam come out of the blind than picking up decoys in the slimy mud. What do geese do along the great lakes where they had those big dumps of snow. Last with our snow I saw guys set up decoys along a road where geese had been feeding the day before!