As stated in the Noise Guidebook, âSTC is used as a. measure of a material's ability to reduce sound,â and. effectively mitigate any adverse noise levels that. could impede a person's use of a residential or. commercial structure. The higher the STC value, the. greater the sound attenuation and presumably the.
1 Record Coldest year in Pennsylvania - 1917 / Avg temperature 46.08 degrees. 2  Pennsylvania average Summer temperature (June, July, August) 68.6 F degrees, 34th warmest U.S. summer state. 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.
most least educated cities in pa the average temperature of wayne county is 46 08 f which is lower than the pennsylvania average temperature of 49 80 f and is much lower than the national average temperature of 54 45 f7 42 mph u s 16 93 mph the temperature snow fall and precipitation information on this page were calculated from the historical data of 18000 u s weather stations for the period of time from 1980 to 2010