I am down south of you, but the infamous Illinois weather is playing a major part in the honey flow this year. With all of the rain and cooler weather, the honey flow is not as good as it should be. Where I live, there has been a lot more windy days, as well as flooding of fields where the bees normally forage; they cannot get nectar or pollen when the fields are under water, so they are forced to travel a greater distance. This year is worse than most for a flow.
If there is a good late spring, early summer flow, it should be right about now in your area. But like I said, this year the weather is effecting the flow. Of course, in the hotter and drier days of summer, the flow will go into a dearth.
Later, I get a good fall flow when the sunflowers, smart weed/heart'sease, and goldenrod is in bloom. I suppose that you also live in an area where these plants are found as well.
This has been a record year for messing up the spring and early summer flow.