What happens when things don’t cool off overnight? You can end up with record high low temperatures. If you were up at Lake Powell over the weekend, you know how this feels. It refused to cool off on Saturday Night. It was hot and uncomfortable all night. Flagstaff was warm as well. The overnight clouds help blanket us and prevent some of the normal cooling. This happened last night in Flagstaff, too. Hopefully, the thunderstorm activity is going to pick up this week and provide some relief.
Statement as of 6:00 PM MST on July 19, 2009
... Record high low temperatures for northern Arizona on Jul 19 2009... City (period of record) new high low previous record/year Cottonwood-tuzigoot (1977 - 2009) 75 72 in 2006 Flagstaff (1899 - 2009) 62 60 in 1925 Page (1958 - 2009) 80 78 in 2003 ... Record high temperatures for northern Arizona on Jul 19 2009... City (period of record) new high previous record/year Navajo nm (1939 - 2009) 95 95 (tied) in 1998 These records are preliminary pending official reports.