🇺🇸 Allentown vs 🇩🇪 Berlin

Allentown in the Lehigh Valley south of the Blue Mountain Ridge has a sheltered climate with less precipitation than the coastal plain. The Blue Mountain blocks some northwesterly cold air creating slightly milder conditions. The Lehigh River creates valley humidity and the dense urban core has significant heat island effects.

Humid continental — cold winters, warm summers, variable year-round

Berlin has cold, grey winters and surprisingly warm summers. The city's landlocked continental location means bigger temperature swings than coastal European cities. Berlin's renowned nightlife and outdoor bar culture thrives June–September.