Mass transit. A layover for mass transit is a short period of recovery time built into the schedule. Layovers are generally used for one or more of the following reasons: recover from delays, provide breaks for the driver, and/or allow time for a driver change. Delays may be caused by earlier traffic congestion or excess boarding times.
Average Temperatures for Pittsburgh. Pittsburgh's coldest month is January when the average temperature overnight is 19.9Â°F. In July, the warmest month, the average day time temperature rises to 82.7Â°F.The driest month in Pittsburgh is October with 2.25 inches of precipitation, and with 4.12 inches June is the wettest month.n July, the warmest month, the average day time temperature rises to 82.7Â°F. The driest month in Pittsburgh is October with 2.25 inches of precipitation, and with 4.12 inches June is the wettest month.
1 Pennsylvania annual average temperature - 48.77 degrees, 31st warmest state in the U.S. 2  Record Hottest year in Pennsylvania - 1998 / Avg temperature 52.03 degrees. 3  Record Coldest year in Pennsylvania - 1917 / Avg temperature 46.08 degrees. Pennsylvania average Summer temperature (June, July, August) 68.6 F degrees, 34th warmest U.S. summer state. 2  Pennsylvania average Winter temperature (December, January, February) 28.4 F degrees, 20th coldest U.S. winter state.