Pittsburgh, PA – Residents in western Pennsylvania are experiencing a historic weather milestone this September, as the National Weather Service (NWS) reports record-cold overnight temperatures over the past three weeks.
According to the U.S. National Weather Service Pittsburgh, temperatures between August 25 and September 14 ranked as the coldest late-summer overnight lows in 155 years of recordkeeping. Meteorologists attribute this trend to recent cloud-free nights combined with wide day-to-night temperature swings.
For the year to date, Pittsburgh has averaged 65.4°F, which is 1.5 degrees warmer than normal. Daytime highs have been slightly above average, but the cooler nighttime conditions pushed recent lows well below typical September levels…