context: Today ( April 17 ) I left my trailer expecting the usual roasting sun and temps - we had a steady climb into the 90s last week . Instead , I found this : The temperature must have fallen 20 or 25 degrees overnight . It is quite pleasant . The dust has an odor that's not completely an odor : it's like walking into a woodworking shop where someone is using a very fine grit power sander .
question: What may have caused the weather to be pleasant ?
reference: It cooled down .
candidate: it cooled .