Smaller scale local market sales, yes the demand does shift with the season. Not so much for the larger scale producers. Seasonal demand essentially begins when colonies are being split after almonds in California. Not sure how package production in the south works into the demand cycle. As spring moves north and inland thru the continent, demand shifts into those areas. It reaches our area by April here in the Pacific Northwest as folks are making up pollination sets for blueberries, then in May we have a significant amount of splitting happening. When demand starts to taper off here, it's picking up on the prairies and that will run thru till end of June.
For some perspective on how large this demand shift is, reference a couple years ago here in Canada when all the talk was tarriff wars. The provinces were all mandated to produce lists of states from which imports came and rank them by value. Imagine the surprise for politicians when Hawaii came out near the top of the list for american imports to Alberta. That's just queen bees coming from the producers in Hawaii. We aren't talking about a few hundred bugs there, it's a number big enough to register as a significant import product.
At a small local level, there may be significant shifts in demand for queens thru the season, but on the larger continent scale, demand is fairly steady thru the majority of the season where queens are being raised. This has a tremendous impact on pricing as much of the overall queen price equation is based on what it costs to bring them in from the large scale producers. There is a limit on how much premium is available for 'local' stock vs how much sales potential one has when priced for a competitive market where the large scale producers are the competition. I'm sure I can sell 20 or 30 a year as some sort of 'local special magic queens' at a steep premium to what is available as imports from Olivarez and/or Kona. But if I want to sell in lots of a hundred or more, they are 'just queens' and will have to price as such.