December weather forecast
Old Glory, AZ

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Weather in December

December, the first month of the winter in Old Glory, is also a moderate month, with temperature in the range of an average low of 40.5°F (4.7°C) and an average high of 59.7°F (15.4°C).

Temperature

December is the coldest month, exhibiting average temperatures of 59.7°F (15.4°C) at the peak and 40.5°F (4.7°C) at the base.

Humidity

In Old Glory, the average relative humidity in December is 47%.

Rainfall

In December, the rain falls for 6 days. Throughout December, 0.71" (18mm) of precipitation is accumulated. In Old Glory, Arizona, during the entire year, the rain falls for 89.6 days and collects up to 15.94" (405mm) of precipitation.

Snowfall

January through March and December are months with snowfall in Old Glory. The month with the most snowfall in Old Glory is December, when snow falls for 0.9 days and typically aggregates up to 1.18" (30mm) of snow.

Daylight

With an average of 10h and 6min of daylight, December has the shortest days of the year in Old Glory.
On the first day of the month, sunrise is at 7:06 am and sunset at 5:21 pm. On the last day of December, in Old Glory, sunrise is at 7:24 am and sunset at 5:32 pm MST.

Sunshine

With an average of 6.9h of sunshine, December has the least sunshine of the year.

UV index

November and December, with an average maximum UV index of 3, are months with the lowest UV index in Old Glory. A UV Index value of 3 to 5 symbolizes a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: An average UV index of 3 in December transforms into this advice:
Exercise prevention - Precautions against solar damage are endorsed. To guard against the harmful effects of the Sun, minimize exposure during midday. Employ a hat with a wide brim for robust protection, cutting UV exposure by half. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
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Frequently asked questions

What is the coldest month in Old Glory?

In Old Glory, the average lowest temperatures are observed in December, with a high of 59.7°F (15.4°C) and a low of 40.5°F (4.7°C).

What is the average December temperature in Old Glory?

The high-temperature in Old Glory during December is 59.7°F (15.4°C) and the low-temperature is 40.5°F (4.7°C). In September, the average heat index (a.k.a. 'feels like', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, is computed to be 84.2°F (29°C).

What is the average humidity in December in Old Glory?

In Old Glory, the average relative humidity in December is 47%.

How many days does it rain in December in Old Glory?

In Old Glory, in December, it is raining for 6 days, with typically 0.71" (18mm) of accumulated precipitation.

What is the snowiest month in Old Glory?

December is the month with the most snowfall. Snow falls for 0.9 days and accumulates 1.18" (30mm) of snow.

When does it start to snow in Old Glory?

December is the first month it typically snows in Old Glory, Arizona. Throughout December, in the average 0.9 snowfall days, it receives 1.18" (30mm) of snow.

What is the month with the shortest days in Old Glory?

The month with the shortest days in Old Glory, Arizona, is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December in Old Glory?

In December, the average day length in Old Glory, Arizona, is 10h and 8min.

When is the sunrise / sunset in December in Old Glory?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 5:21 pm. On the last day of the month, in Old Glory, Arizona, sunrise is at 7:24 am and sunset at 5:32 pm MST.

What is the month with the least sunshine in Old Glory?

The month with the least sunshine in Old Glory is December, with an average of 6.9h of sunshine.

How many hours of sunshine does Old Glory have in December?

The average sunshine duration in December is 6.9h.

When is the lowest UV index in Old Glory?

The months with the lowest UV index in Old Glory are November and December, with an average maximum UV index of 3.

What is the UV index intensity in December in Old Glory?

The average daily maximum UV index in December in Old Glory, Arizona, is 3. A UV Index estimate of 3 to 5 represents a medium health risk from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Old Glory, AZ

Average temperature in December - Old Glory, AZ
  • Average high temperature in December: 59.7°F

The warmest month (with the highest average high temperature) is June (91.6°F).
The month with the lowest average high temperature is December (59.7°F).

  • Average low temperature in December: 40.5°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is December (40.5°F).

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Average pressure in December
Old Glory, AZ

Average pressure in December - Old Glory, AZ
  • Average pressure in December: 30.03"Hg

The month with the highest atmospheric pressure is January (30.06"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).

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Average wind speed in December
Old Glory, AZ

Average wind speed in December - Old Glory, AZ
  • Average wind speed in December: 6.6mph

The windiest month (with the highest average wind speed) is May (9.8mph).
The calmest month (with the lowest average wind speed) is August (5.2mph).

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Average humidity in December
Old Glory, AZ

Average humidity in December - Old Glory, AZ
  • Average humidity in December: 47%

The month with the highest relative humidity is August (52%).
The months with the lowest relative humidity are May and June (24%).

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Average rainfall in December
Old Glory, AZ

Average rainfall in December - Old Glory, AZ
  • Average rainfall in December: 0.71"

The wettest month (with the highest rainfall) is July (4.41").
The driest month (with the least rainfall) is May (0.12").

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Average rainfall days in December
Old Glory, AZ

Average rainfall days in December - Old Glory, AZ
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is July (21.6 days).
The month with the least rainy days is May (1.7 days).

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Average snowfall in December
Old Glory, AZ

Average snowfall in December - Old Glory, AZ
  • Average snowfall in December: 1.18"

The month with the highest snowfall is December (1.18").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Old Glory, AZ

Average snowfall days in December - Old Glory, AZ
  • Average snowfall days in December: 0.9 days

The month with the highest number of snowfall days is December (0.9 days).
The months with the least snowfall days are April, May, June, July, August, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Old Glory, AZ

Average daylight in December / Average sunshine in December - Old Glory, AZ
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 6h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

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Average sunshine days in December
Old Glory, AZ

Average sunshine days in December - Old Glory, AZ
  • Average sunshine days in December: 24.4 days

The month with the most sunshine days is May (29 days).
The month with the least sunshine days is July (6.8 days).

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Average UV index in December
Old Glory, AZ

Average UV index in December - Old Glory, AZ
  • Average UV index in December: 3

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are November and December (UV index 3).

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Average cloud cover in December
Old Glory, AZ

Average cloud cover in December - Old Glory, AZ
  • Average cloud cover in December: 21

The month with the most cloud cover is July (Cloud cover 24).
The month with the least cloud cover is May (Cloud cover 7).

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Average visibility in December
Old Glory, AZ

Average visibility in December - Old Glory, 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).

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Old Glory, Arizona, USA

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