I got a package last weekend and helped another beek install her 3 packages. I wasn't wearing gloves and took a sting to the finger and one on the wrist. I blamed the dreary, cool, overcast weather. Last night went to refill feeders and was greeted by the landowner and she said they were just down there and the little girl got stung after a bee got tangled up in her hair. I went down and walked behind the hives but in the flight path to the nearby timber and just walking in the flight path earned me some headbutting, got closer and got stung on the hand. I've read some other forums and talked to the package supplier this morning and they said they've had other calls about aggressive behavior from packages, the beek I helped had a couple packages that were grumpy too. The syrup can was empty or nearly empty on all packages we installed. Weather has been cool. Sunday when I installed them it was starting to get misty and rainy but I knew the syrup can was empty so I felt had to do it then. It rained from installation to Monday morning (0.3" temps mid-50s for highs). Monday evening we released the queen, my fiancee wore my only jacket/veil and they were perfectly agreeable then. Rained pretty steady from Tuesday morning until late afternoon when it cleared up, sun came out and and temps went up to mid-70s. Lots of activity but aggressive then. I'm using boardman feeders and they've taken ~ 1 pint of syrup since Sunday.
Here's my question. Will this hive cool back down once they get a few nice days to forage or warm weather so they can break cluster and get down to the feeder or will i have to wait ~30 days for the new bees from the queen in this package?
Is my assumption about the weather and being able to feed the likely cause of the grumpyness?
I've seen quite a few posts here and elsewhere where bees are aggressive this year.