As the weather finally warmed, sales of luxury homes in Boulder County and Northern Colorado heated up as well, according to a report released Friday.

For sales of $500,000 or more in Boulder County, 118 residential properties - single-family residences or condominiums - were closed in Boulder in April, up from 89 in March but down slightly from the 130 sold in April 2013. The average sale price in the upper-end category soared to $808,000, up from $486,000 in March and $434,000 in the same month last year.

The statistics were compiled by MarketQuest and Metrolist Inc. and released by Coldwell Banker.

The number of unsold homes in Boulder County was 32 percent higher than in April last year, and 17.8 percent ahead of last month.

In Larimer and Weld counties, the average sale price of luxury homes and condos was $635,000 in April, down from $700,000 in March but up from $614,000 in April 2013.

Fifty-eight such properties were sold, compared with 38 in March and 51 in April the same month a year ago.

Inventory was also up, with 26.9 percent more homes in the luxury price range remaining unsold in April than in the same month last year, and 12.7 percent more than in March.