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

December weather forecast and Climate
Lewisburg, PA

  • The average high temperature in December: 37°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (34°F).

  • The average low temperature in December: 23°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (18°F).

  • The average rainfall in December: 3"

The wettest month (with the highest rainfall) is June (4.2").
Driest months (with the lowest rainfall) are January and February (2.6").

  • The average rainfall days in December: 12 days

The month with the highest number of rainy days is May (13 days).
Months with the lowest number of rainy days are September and October (10 days).

  • The average daylight in December: 9h

Months with the longest days are May, June and July (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9h).

  • The average sunshine in December: 3h

Months with most sunshine are June and July (Average sunshine: 10h).
The month with least sunshine is December (Average sunshine: 3h).

  • The average UV index in December: 1

Months with the highest UV index are June and July (UV index 9).
The month with the lowest UV index is December (UV index 1).