Weather in December in Rockville, In

< December >
	Normal Max/ High Temperature	4°C (40°F)
	Average Temperature	0°C (32°F)
	Min/ Low Temperature	-5°C (23°F)
	Normal Precipitation	99mm (3.9in)
	Average Daylight per day	09h 23'
	Sun altitude at solar noon on the 21st day.	26.6°

• The average temperature in Rockville, In in December is slightly cold at -0.2 °C (31.64 °F).
• Afternoons can be cool with average high temperatures reaching 4.4 °C (39.9 °F).
• Overnight temperatures are generally slightly cold with an average low of -4.9 °C (23.2 °F).
• The range/ variation of daily mean temperatures in December is 9.3 °C (16.7 °F).
• Precipitation averages for December are high with 99.1mm (3.9 in) recorded.
• The shortest day is 9h 19' long and the longest day is 9h 31' long with an average length of 9h 23'.

Weather Trend Graph for December in Rockville, In, Usa