Record rains, again

The overnight downpours that poured out over a half-foot of rain on parts of Burlington County also helped Philadelphia set yet another rain record.

Adding what fell during the day, officially 3.05 inches has been measured at Philadelphia International Airport, a record for the date.

Precipitation records for Philadelphia are among the oldest in the nation, dating to 1872, and today's rains broke the mark set in 1887, 2.75 inches.

As we've noted, Philly this summer set a record for the wettest June, with over 10 inches of rain.

After a stormy overnight in which lightning knocked out power to 36,000 PECO customers, we are delighted to report that the weather is about to change dramatically.

In fact, we are about to experience an extraordinary change of air mass -- for the better.

We've noticed a subtle bumping-down of temperatures with the forecast updates, and the latest version has temperatures falling all the way to 61 Thursday morning, and into the upper 50s in the suburbs.

Most impressive to us is the change in the dewpoints -- which measure the true moisture content of the atmosphere.

They have been in the 70s during these bad-air siege, but they are heading into the far-more comfortable 60s and 50s.

You'll notice the difference.