Wondering about my thermometer a little after today - the high here was 92F, currently 75F, DP 70F. Generally speaking it seems fairly accurate, but I was surprised to see 92 as the high. We spent the day horizontally boring holes from the barn to the front yard, 28 feet length under the driveway. It was hot, after a while it's like you're in a mental fog, and just plugging along.