Weather in December in Harrow, On

< December >
	Normal Max/ High Temperature	1°C (34°F)
	Average Temperature	-2°C (29°F)
	Min/ Low Temperature	-5°C (23°F)
	Normal Precipitation	83mm (3.3in)
	Average Daylight per day	09h 10'
	Sun altitude at solar noon on the 21st day.	24.6°

The average temperature in Harrow, On in December is slightly cold at -1.7 °C (28.94 °F).
Afternoons can be very cool with average high temperatures reaching 1.3 °C (34.3 °F).
Overnight temperatures are generally slightly cold with an average low of -4.8 °C (23.4 °F).
In December the average daily temperature variation/ range is 6.1 °C (11 °F).
Precipitation averages for December are high with 82.8mm (3.3 in) recorded.
The shortest day is 9h 06' long and the longest day is 9h 19' long with an average length of 9h 10'.

Weather Trend Graph for December in Harrow, On, Canada

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