For the second straight month, sales of previously owned homes increased from one month earlier, according to new numbers from the National Association of Realtors. In fact, sales of single-family homes, townhomes, condos, and co-ops, rose 1.1 percent to an annual rate of 5.60 million in March. Lawrence Yun, NAR’s chief economist, says warmer weather may have had something to do with the sales pickup. “Robust gains last month in the Northeast and Midwest – a reversal from the weather-impacted declines seen in February – helped overall sales activity rise to its strongest pace since last November at 5.72 million,” Yun said. Put simply, low inventory and higher prices have made the housing market more challenging for buyers in some markets but overall demand is running high and, as the weather improves, may even see further gains. For interested buyers, that means available homes are selling fast this spring. The NAR reports that the typical property was on the market for just 30 days in March and half of the homes that sold were purchased in less than a month.