In this photograph, two American servicemen battle the rainy barrage of summers in Vietnam. Weather in Vietnam was nothing to sneeze at, in particular the rainy season which lasts from May to October. The average monthly rainfall in this season is often well over 8 inches. Moreover, soldiers not only faced the onslaught of precipitation, but the humidity and heat of summer months which could average above 80 degrees. For many Americans, entering the wet and muggy climate of Vietnam was like setting foot into a new world.