Overview: OrangevilleOrangeville (Canada) in general has a mild continental climate. Temperatures during the day are in the range from -4 °C (25 °F) in January to 26 °C (78 °F) in July. The driest month is July with just 10 days of rain, on the contrary, the month when it rains the most is December with 13 days of rain. Temperatures during the night go from -12 °C (11 °F) in January to 13 °C (56 °F) in July.