AZCentral.com - 1/12/13, D.S. Woodfill, The Arizona Republic-12 News Breaking News Team
Valley nighttime temperatures have dropped below freezing, pushing the region into a four-day cold snap, the first of its kind in more than 24 years, experts say.
The unusually cold weather froze pipes at Valley homes, strained homeless charities and likely knocked out power, among other problems.
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