2008 will start with warm sunshine, bringing an end to weeks of cold weather.
On Tuesday, the Valley’s official temperature is expected to reach 71 degrees, five degrees above normal for this time of year. Wednesday and Thursday also will see daytime highs in the low 70s.
Responsible for the rising mercury is a high-pressure system sliding eastward over the Western United States.
The warming will begin today, with a forecast high of 67 under mostly clear skies.
The balmy conditions will be a change from recent weather conditions.
Phoenix’s official thermometer last recorded three consecutive days of above-average temperatures from Dec. 5 through Dec. 7.
The chilliness peaked during the latter half of last week, with highs more than 10 degrees below normal.
Later this coming week, seasonably warm weather is expected to continue but with a threat of rain.
Long-range forecasts call for two weather disturbances to sweep into the West, ushering in more moisture plus the energy to create precipitation.