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.
The warmest month in Lehigh Valley International, Allentown, Pennsylvania is July with an average high temperature of 86.1Â°F. The hottest day on record was July 23 2011 when the temperature hit 104.0Â°F.