I went out this morning at 10:00 am to water the new plum tree 'for the bees' and us. It was 53 degrees out, but felt like 45 with full overcast skies and cold winds. I put a bar partially over the entrance, to hopefully give the bees a chance to warm up. (I should have put it on last night) The high was 57 degrees, but otherwise bitter cold winds. I saw very little activity throughout the day.