Ummm... It's less than 10F warmer right now, based on what I see on those two pages. 52F for Austin and 45F for Prescott. Even if you loot at "feels like" (52F Austin, 41F Prescott), the difference is still barely 10F.
psash it's not cold enough yet to leave the windows open to vent the heat from my computers. Besides my car's heater/ac only does the heat thing so I'll take this weather over 80+ any day.