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.
Weather Forecast. 1  The weather in Bethlehem (Israel) 2  Summer weather in Bethlehem. 3  Winter weather in Bethlehem. 4  Weather at Christmas Time in Bethlehem. 5  Best time to visit Bethlehem. 6  Weather forecast for Bethlehem (Jerusalem Area), Israel.