Philadelphia is making an appearance on rental firm Abodo's list of decreasing rental rates for the first time this month. Between November and December, prices fell by about 4 percent, according to the firm. Nationally, the average price of a one-bedroom apartment fell less than one half of one percent, going from $1,042 to $1,037.

Rents continue to rise in Colorado Springs (up 8 percent) and throughout California, including Long Beach (up 6 percent), Sacramento and San Diego (both up 5 percent). In Colorado Springs, the price hike still means you can snag a one-bedroom for $962, though. In California, Sacramento has been rising for several months and is at $1,109.

Rents in Philly may be down 4 percent, but that's still nothing compared with Miami, where an 11 percent dip still puts the average one-bedroom rental at $1,569.

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