December weather forecast
Tolani Lake, AZ

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Weather in December

December, the first month of the winter in Tolani Lake, is also a frosty month, with an average temperature fluctuating between 30.7°F (-0.7°C) and 48°F (8.9°C).

Temperature

Welcoming December, Tolani Lake observes a shift in the average high-temperature, falling from November's mild 59.2°F (15.1°C) to a chilly 48°F (8.9°C). During December, Tolani Lake's temperature falls to a steady low-temperature average of 30.7°F (-0.7°C).

Humidity

The average relative humidity in December is 52%.

Rainfall

In December, the rain falls for 3.4 days. Throughout December, 0.24" (6mm) of precipitation is accumulated. In Tolani Lake, during the entire year, the rain falls for 46.1 days and collects up to 3.35" (85mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. In December, it is snowing for 1.5 days. Throughout December, 0.39" (10mm) of snow is accumulated. Throughout the year, there are 5.9 snowfall days, and 3.07" (78mm) of snow is accumulated.

Daylight

With an average of 9h and 48min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:14 am and sunset at 5:10 pm. On the last day of December, sunrise is at 7:32 am and sunset at 5:21 pm MST.

Sunshine

With an average of 7h of sunshine, December has the least sunshine of the year.

UV index

The months with the lowest UV index are November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: A typical high UV index of 2 in December suggests the following recommendations:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. Your best bet for sun defense on the face, eyes, and neck is a hat with a wide brim. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Updated: Jun 22, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are December temperatures?

December temperatures vary between a high-temperature of 48°F (8.9°C) and a low-temperature of 30.7°F (-0.7°C).

What is the average humidity in December?

The average relative humidity in December is 52%.

How many days does it rain in December?

In Tolani Lake, during December, the rain falls for 3.4 days and regularly aggregates up to 0.24" (6mm) of precipitation.

How much does it snow in December?

In December, it is snowing for 1.5 days. Throughout December, 0.39" (10mm) of snow is accumulated.

What is the month with the shortest days?

With an average of 9h and 48min of daylight, December has the shortest days of the year.

What is the average length of the day in December in Tolani Lake?

In Tolani Lake, the average day length in December is 9h and 49min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:14 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:32 am and sunset at 5:21 pm MST.

What is the month with the least sunshine?

With an average of 7h of sunshine, December has the least sunshine of the year.

How long on average sun shines in December?

The average sunshine duration in December is 7h.

What are the months with the lowest UV index?

The months with the lowest UV index are November and December, with an average maximum UV index of 2.

What is the UV index reading in December?

In Tolani Lake, the average daily maximum UV index in December is 2. A UV Index value of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Tolani Lake, AZ

Average temperature in December - Tolani Lake, AZ
  • Average high temperature in December: 48°F

The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (47.7°F).

  • Average low temperature in December: 30.7°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).

Average pressure in December
Tolani Lake, AZ

Average pressure in December - Tolani Lake, AZ
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are May and June (29.88"Hg).

Average wind speed in December
Tolani Lake, AZ

Average wind speed in December - Tolani Lake, AZ
  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest month (with the lowest average wind speed) is January (6.2mph).

Average humidity in December
Tolani Lake, AZ

Average humidity in December - Tolani Lake, AZ
  • Average humidity in December: 52%

The month with the highest relative humidity is January (57%).
The month with the lowest relative humidity is June (18%).

Average rainfall in December
Tolani Lake, AZ

Average rainfall in December - Tolani Lake, AZ
  • Average rainfall in December: 0.24"

The wettest month (with the highest rainfall) is October (0.55").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in December
Tolani Lake, AZ

Average rainfall days in December - Tolani Lake, AZ
  • Average rainfall days in December: 3.4 days

The month with the highest number of rainy days is July (7.8 days).
The months with the least rainy days are June and November (2.5 days).

Average snowfall in December
Tolani Lake, AZ

Average snowfall in December - Tolani Lake, AZ
  • Average snowfall in December: 0.39"

The month with the highest snowfall is February (1.69").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Tolani Lake, AZ

Average snowfall days in December - Tolani Lake, AZ
  • Average snowfall days in December: 1.5 days

The month with the highest number of snowfall days is January (1.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Tolani Lake, AZ

Average daylight in December / Average sunshine in December - Tolani Lake, AZ
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 7h and 0min

The month with the most sunshine is August (Average sunshine: 12h and 18min).
The month with the least sunshine is December (Average sunshine: 7h and 0min).

Average sunshine days in December
Tolani Lake, AZ

Average sunshine days in December - Tolani Lake, AZ
  • Average sunshine days in December: 26 days

The month with the most sunshine days is May (27.1 days).
The month with the least sunshine days is July (19.7 days).

Average UV index in December
Tolani Lake, AZ

Average UV index in December - Tolani Lake, AZ
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are November and December (UV index 2).

Average cloud cover in December
Tolani Lake, AZ

Average cloud cover in December - Tolani Lake, AZ
  • Average cloud cover in December: 20

The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 8).

Average visibility in December
Tolani Lake, AZ

Average visibility in December - Tolani Lake, AZ
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).

Tolani Lake, Arizona, USA

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