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.
Days of Hot Weather in Philadelphia. The temperature at Philadelphia climbs into the 90s Fahrenheit for 24 days a year on average, scattered throughout late spring and summer. About once every two or three years, the thermometer here reaches 100 Â°F (38 Â°C).A day of 100-degree weather can show up in July or August.he coldest nights of winter at Philadelphia drop down to 10 Â°F (-12 Â°C) or below. About once in five years the city gets as cold as 0 Â°F (-18 Â°C). From December to March, Philadelphia can remain below freezing all day long. The city typically has 13 days a year when the temperature never rises above 32 Â°F.