December weather forecast
Mount Lemmon, AZ

December weather in Mount Lemmon, Arizona, encapsulates the arrival of the year-end winter cycle. With temperatures dropping to their yearly lows, the environment exudes a cozy, holiday spirit. Snowfall plays a major role, accumulating to 11" (279mm) and transforming the landscape into a winter wonderland. January will follow suit with similar frosty weather, while November in contrast, stands significantly warmer with lesser snowfall. Amidst the hush of winter, Mount Lemmon sparkles under the twinkling holiday lights, closing the annual weather cycle with a chill.

Temperature

With the onset of December, Mount Lemmon experiences a modest temperature adjustment, with the average high-temperature gently receding from a refreshing 56.3°F (13.5°C) in November to a fresh 50.5°F (10.3°C). Mount Lemmon registers a pronounced decline from daytime peak temperatures, averaging a freezing cold 24.3°F (-4.3°C) lows in December.

Rainfall

In December, the rain falls for 5 days. Throughout December, 2.6" (66mm) of precipitation is accumulated. In Mount Lemmon, during the entire year, the rain falls for 59 days and collects up to 29.57" (751mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. During December, Mount Lemmon regularly aggregates up to 10.98" (279mm) of snow. Throughout the year, 64.92" (1649mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 10h and 6min of daylight.
On the first day of December, sunrise is at 7:07 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:24 am and sunset at 5:28 pm MST.

Sunshine

January and December, with an average of 7.8h of sunshine, are months with the least sunshine.