December weather forecast and Climate
Raleigh, NC US

• The average high temperature in December: 12°C

The warmest month (with the highest average high temperature) is July (32.3°C).
The month with the lowest average high temperature is January (10.5°C).

• The average low temperature in December: 0.7°C

The month with the highest average low temperature is July (21.1°C).
The coldest month (with the lowest average low temperature) is January (-0.6°C).

• The average humidity in December: 68.5%

The month with the highest relative humidity is August (77.9%).
The month with the lowest relative humidity is April (61.7%).

• The average rainfall in December: 78mm

The wettest month (with the highest rainfall) is July (120.1mm).
The driest month (with the lowest rainfall) is April (74.2mm).

• The average rainfall days in December: 9.4 days

The month with the highest number of rainy days is July (11.9 days).
The month with the lowest number of rainy days is October (7.3 days).

• The average snowfall in December: 15.2mm

The month with the highest snowfall is January (73.7mm).
Months with the lowest snowfall are May, June, July, August, September and October (0mm).

• The average snowfall days in December: 0.5 days

The month with the highest number of snowfall days is February (1.3 days).
Months with the lowest number of snowfall days are May, June, July, August, September and October (0 days).

• The average daylight in December: 10h

The month with the longest days is June (Average daylight: 15h).
Months with shortest days are January, November and December (Average daylight: 10h).

• The average sunshine in December: 5.1h

The month with most sunshine is June (Average sunshine: 8.9h).
The month with least sunshine is December (Average sunshine: 5.1h).

• The average UV index in December: 2

Months with the highest UV index are June and July (UV index 10).
The month with the lowest UV index is December (UV index 2).