Washboarding: I have one of those lazer thermometer that takes surface temp, actually the lazer just indicates the spot, just a pointer.
So I checked the temps of the front of 5 hives: washboarding was one degree cooler. Conditions, sunny 98F, calm, 41 percent humidity, shaded hives.
The hive entrances were 99F, hanging clusters were 100F, the top super was 103. One hive is vented in the top back with a 1.5 inches hole that is screened. This hive was same temp as the unvented hives. I dunno??