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.