The Greater Lehigh Valley Realtors (GLVR) reported that the August housing market showed positive trends that indicate more homes are selling, spending less time on the market and commanding increasing prices.

Closed sales increased 12.8 percent over last year, while inventory is down 23.3 percent and median sales prices were up 3.4 percent to $183,000.

New listings for the month were down 0.2 percent to 1,100. Pending sales increased 25.3 percent over last year to 778 and days on the market decreased 13.2 percent to 59.

There is a 6.6 months supply of inventory, a decrease of 33.3 percent. The average sales price increased 1.3 percent over a year ago to $209,323. The percentage of list price received remained stable at 0.6 percent. The affordability index ticked up 1.1 percent.

Closed house sales in the Lehigh Valley increased again by double digits: 12.8 percent to 767 in August, up from 680 in August 2014.

This continues the month-to-month double-digit increases in 2015, according to the latest GLVR monthly report.

Closed sales are up 14.9 percent for 2015 year-to-date to 4,846, compared to 4,217 year-to-date in 2014.

This year, closed sales were only down in May and were up in July, June, April, March, February and January.

Pending sales increased the biggest percentage so far this year, 25.3 percent in August to 778, compared to 621 in July 2014.

Pending sales are up 19.1 percent year-to-date to 5,488, up from 4,606 year-to-date in 2014.

“The summer picked up where the spring left off which was great news for the Lehigh Valley real estate market. The number of sold homes is up as are prices and inventory continues to decrease,” GLVR Chief Executive Officer Ryan Conrad said.

“It’s taken the real estate market a bit of time to get back to these solid numbers,” GLVR President Chris Raad said. “It’s great to once again see all these consistently positive trends. 2015, so far, is on pace to improve upon last year’s figures.”

New listings were again down, 0.2 percent in August to 1,100, down from 1,102 in August 2014.

Inventory also was again down, 23.3 percent in August to 4,136, down from 5,389 in August 2014.

The Months Supply also was down, 33.3 percent in August to 6.6 percent, down from 9.9 percent in August 2014.

Days on Market was down by 13.2 percent in August to 59 days, down from 68 days in August 2014.

The median sales price increased 3.4 percent in August to $183,000, up from $177,000 in August 2014.

The average sales price was up 1.3 percent in August to $209,323, up from $206,602 in August 2014.

The percentage of list price received increased 0.6 percent in July, to 96.9 percent, up from 96.3 percent in August 2014.

The affordability index increased 1.1 percent in August compared to August 2014.

Here’s an overview of Lehigh Valley house sales in 2015:

Closed house sales in July increased 13.8 percent to 774, up from 680 in July 2014.

Closed housing sales in June increased 15.6 percent to 779, up from 674 in June 2014.

Closed sales in May declined 2.8 percent to 596, down from 613 in May 2014.

Closed sales in April increased 10.5 percent to 507 houses, up from 459 houses in April 2014.

Closed sales in March increased 19 percent to 514 houses, up from 432 houses in March 2014.

Closed sales in February increased 4.3 percent to 339 houses, up from 325 houses in February 2014.

Closed sales in January increased 5.7 percent to 373 houses, up from 353 houses in January 2014.

The Carbon County data showed a 4.5 percent increase in pending sales at 46, and the median sale price increased 0.9 percent to $115,000. Inventory in Carbon was down by 19.8 percent to 368.

The monthly housing data is collected by the GLVR from its Multiple Listing Service, a comprehensive database that includes housing market information from its more than 2,000 Realtor members.

The GLVR is a not-for-profit trade association providing professional development and training resources, competitive market information, legislative advocacy, a peer review and mediation process for members, and a dispute resolution service for consumers.

The GLVR owns and operates the Greater Lehigh Valley Multiple Listing Service, the Greater Lehigh Valley Real Estate Academy and is publisher of Greater Lehigh Valley Real Estate Weekly.