The typical hazy, hot, humid days of summer have been put on hold by a cooler than normal weather pattern. Low pressure in eastern Canada continues to funnel cooler and drier than normal air into the mid Atlantic and northeastern United States. At BWI-Marshall, we have not hit 90° since an unusual three day heatwave in late April (April 25-27) and temperatures for the first 6 days of July are running 4.2° below normal.
Tom Tasselmyer

