Bethlehem
Pennsylvania, USA
Long-term weather forecast
Long-term weather forecast

December weather forecast and climate
Bethlehem, PA

A tranquil setting of dry trees and neat fields behind this large hall in the Lehigh University in Bethlehem, Pennsylvania, under a scenic clear
A tranquil setting of dry trees and neat fields behind this large hall in the Lehigh University in Bethlehem, Pennsylvania, under a scenic clear
December, the first month of the winter, in Bethlehem, is still a cold month, with temperature in the range of an average low of 24.1°F (-4.4°C) and an average high of 41°F (5°C).

Temperature

In December, the average high-temperature drops, from a cool 53.1°F (11.7°C) in November, to a wintry 41°F (5°C). In December, in Bethlehem, the average low-temperature is 24.1°F (-4.4°C).

Rainfall

During December, Bethlehem regularly aggregates up to 3.6" (90.9mm) of precipitation. Throughout the year, 45.4" (1154.4mm) of rain is accumulated.

Daylight

With an average of 9.3h of daylight, December has the shortest days of the year.

What is the temperature in December in Bethlehem?

The average high-temperature, in December, in Bethlehem, is 41°F (5°C), while the average low-temperature is 24.1°F (-4.4°C).

How much does it rain in Bethlehem in December?

During December, Bethlehem regularly aggregates up to 3.6" (90.9mm) of precipitation.

What is the month with the shortest days in Bethlehem?

December has the shortest days of the year in Bethlehem, Pennsylvania, with an average of 9.3h of daylight.

What is the average length of the day in December in Bethlehem?

In December, the average length of the day is 9.3h.
Average temperature in December - Bethlehem, PA
  • Average high temperature in December: 41°F

The warmest month (with the highest average high temperature) is July (84°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in December: 24°F

The month with the highest average low temperature is July (63°F).
The coldest month (with the lowest average low temperature) is January (19°F).

Average rainfall in December - Bethlehem, PA
  • Average rainfall in December: 3.6"

The wettest month (with the highest rainfall) is July (5").
The driest month (with the lowest rainfall) is February (2.8").

Average daylight in December - Bethlehem, PA
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.3h).