December weather forecast and climate
Granby, CO

What is the temperature in December in Granby?

In Granby, Colorado, in December, the average high-temperature is 30°F (-1.1°C), and the average low-temperature is 5°F (-15°C).

How much does it rain in Granby in December?

Throughout December, in Granby, Colorado, 1.4" (35.6mm) of precipitation is accumulated.
Average temperature in December - Granby, CO
  • Average high temperature in December: 30°F

The warmest month (with the highest average high temperature) is July (75°F).
The month with the lowest average high temperature is January (28°F).

  • Average low temperature in December: 5°F

The month with the highest average low temperature is July (41°F).
Coldest months (with the lowest average low temperature) are January and February (1°F).

Average rainfall in December - Granby, CO
  • Average rainfall in December: 1.4"

The wettest month (with the highest rainfall) is August (1.7").
Driest months (with the lowest rainfall) are February and October (0.8").

Average daylight in December - Granby, CO
  • Average daylight in December: 9.4h

The month with the longest days is June (Average daylight: 15h).
The month with shortest days is December (Average daylight: 9.4h).