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.
The climate of Allentown, Pennsylvania is classified as being in the transition between a humid continental and humid subtropical climate, although lying closer to the former. Allentown's warmest month is July with a daily average temperature of 73.4 Â°F and the coldest month being January with a daily average of 27.8 Â°F. The average precipitation of Allentown is 45.35 inches per year. Allentown occasionally has some severe weather, mostly thunderstorms and flooding. Winters can bring snow ...