Ratio data is interval data with a natural zero point. For example, time is ratio since 0 time is meaningful. Degrees Kelvin has a 0 point (absolute 0) and the steps in both these scales have the same degree of magnitude.
Bethlehem, PA Weather. The average temperature of Bethlehem is 51.25Â°F, which is higher than the Pennsylvania average temperature of 49.80Â°F and is lower than the national average temperature of 54.45Â°F. Historical Weather.
Allentown's warmest month (on average) is July with a daily average temperature of 73.4 Â°F (23.0 Â°C) and the coldest month (on average) being January with a daily average of 27.8 Â°F (â2.3 Â°C). The average precipitation of Allentown is 45.35 inches (1,152 mm) per year. Allentown occasionally has some severe weather, mostly thunderstorms and flooding. Winters can bring snow, with some years receiving very little of it while others seeing several major snowstorms (often Nor'easters).