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.
Hourly Forecast Detailed. 1  0am:The Bethlehem, PA forecast for Apr 13 is 55 degrees and Clear. There is 56 percentage chance of rain and 5 mph winds from the Northwest. 2  3am:The Bethlehem, PA forecast for Apr 13 is 48 degrees and Clear. There is 57 percentage chance of rain and 5 mph winds from the Northwest.