Yup, that’s how I think of it. You are more prone to squeezing those extra few degrees out on either side (night and afternoon)... this the high diurnal ranges in those locations. Mid-slope elevations have a lower diurnal range in clear and non-advection regimes, less chill at night and more moderate afternoons.
Often in NNE the radiator ASOS sites are also the ones that get hot/dry in the afternoon... BML, HIE, MVL, SLK even at almost 1700ft. Air moving down the mountain slopes into the valley, compressional warming and drying. Get that extra 2-3F while losing some dew point...those sites get that 90/57 while others are 86/62 type deal.
SLK is probably the best example as it’s what like 1665ft? That elevation as a hilltop in New England might hit like 83-85F in a very hot period when valleys are ripping off 90s. Like 1700ft in SVT plateau, not very hot. But Lake Placid and SLK in that 1600-1800ft range is valley bottom surrounded by 4,000-5,000ft terrain all around. You’ll see SLK get 87-90F in hot patterns... probably 3-5F hotter than if that elevation is a hilltop.
Then there are larger valley spots like BTV, ALB, MSS, etc that don’t radiate AND absolutely torch, ha. BTV probably doesn’t drop below 70F for 24-48 hours at some point early next week. King of 70F mins.