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 daily low temperature in Philadelphia on September First averages 65 degrees Fahrenheit and the low on the last day of September averages 53 degrees. Philadelphia usually receives an average of 3.88 inches of rain during September. The most rain recorded in a single day, as shown by September Philadelphia Weather data, was 6.63 inches on September 16, 1999.