December weather forecast
Rimrock, AZ

Weather in December

December, the first month of the winter in Rimrock, is still a cool month, with an average temperature varying between 32.2°F (0.1°C) and 50.9°F (10.5°C).

Temperature

December is the coldest month, with an average high-temperature of 50.9°F (10.5°C) and an average low-temperature of 32.2°F (0.1°C).

Humidity

The most humid month in Rimrock is December, with an average relative humidity of 57%.

Rainfall

In Rimrock, Arizona, in December, during 7.2 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. Throughout the year, there are 82.6 rainfall days, and 11.69" (297mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Rimrock are January through April, November and December. In Rimrock, in December, during 1.2 snowfall days, 0.91" (23mm) of snow is typically accumulated. Throughout the year, in Rimrock, there are 3.9 snowfall days, and 3.98" (101mm) of snow is accumulated.

Daylight

December has the shortest days of the year in Rimrock, with an average of 9h and 53min of daylight.
On the first day of December, sunrise is at 7:16 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:26 pm MST.

Sunshine

With an average of 6.8h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index in Rimrock. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for average individuals.
Note: The daily maximum UV index of 2 in December interpret into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the coldest month in Rimrock?

With an average high-temperature of 50.9°F (10.5°C) and an average low-temperature of 32.2°F (0.1°C), December is the coldest month in Rimrock, Arizona.

What is the temperature in December in Rimrock?

The average high-temperature, in December, is 50.9°F (10.5°C), while the average low-temperature is 32.2°F (0.1°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is estimated at 80.6°F (27°C).

What is the most humid month in Rimrock?

The most humid month in Rimrock is December, with an average relative humidity of 57%.

What is the average humidity in December in Rimrock?

The average relative humidity in December in Rimrock, Arizona, is 57%.

How many days does it rain in December in Rimrock?

In Rimrock, Arizona, in December, it is raining for 7.2 days, with typically 1.14" (29mm) of accumulated precipitation.

How many days does it snow in December in Rimrock?

In Rimrock, Arizona, in December, snow falls for 1.2 days, with typically accumulated 0.91" (23mm) of snow.

What is the month with the shortest days in Rimrock?

The month with the shortest days in Rimrock is December, with an average of 9h and 53min of daylight.

What is the average length of the day in December in Rimrock?

The average day length in December in Rimrock, Arizona, is 9h and 53min.

When are sunrise and sunset in December in Rimrock?

In December, on the first day of the month, sunrise is at 7:16 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:33 am and sunset at 5:26 pm MST.

What is the month with the least sunshine in Rimrock?

With an average of 6.8h of sunshine, December has the least sunshine of the year in Rimrock, Arizona.

How many hours of sunshine does Rimrock have in December?

In December, the average sunshine duration in Rimrock, Arizona, is 6.8h.

What is the month with the lowest UV index in Rimrock?

The month with the lowest UV index is December, with an average maximum UV index of 2.

What is the UV index reading in December in Rimrock?

In Rimrock, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat from exposure to the Sun's UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Rimrock, AZ

Average temperature in December - Rimrock, AZ
  • Average high temperature in December: 50.9°F

The warmest month (with the highest average high temperature) is July (88.3°F).
The month with the lowest average high temperature is December (50.9°F).

  • Average low temperature in December: 32.2°F

The month with the highest average low temperature is August (65.8°F).
The coldest month (with the lowest average low temperature) is December (32.2°F).

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Average pressure in December
Rimrock, AZ

Average pressure in December - Rimrock, AZ
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

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Average wind speed in December
Rimrock, AZ

Average wind speed in December - Rimrock, AZ
  • Average wind speed in December: 5.4mph

The windiest months (with the highest average wind speed) are April and May (7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

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Average humidity in December
Rimrock, AZ

Average humidity in December - Rimrock, AZ
  • Average humidity in December: 57%

The month with the highest relative humidity is December (57%).
The month with the lowest relative humidity is June (23%).

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Average rainfall in December
Rimrock, AZ

Average rainfall in December - Rimrock, AZ
  • Average rainfall in December: 1.14"

The wettest month (with the highest rainfall) is July (1.85").
The driest month (with the least rainfall) is June (0.16").

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Average rainfall days in December
Rimrock, AZ

Average rainfall days in December - Rimrock, AZ
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is July (14.9 days).
The month with the least rainy days is June (2.3 days).

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Average snowfall in December
Rimrock, AZ

Average snowfall in December - Rimrock, AZ
  • Average snowfall in December: 0.91"

The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").

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Average snowfall days in December
Rimrock, AZ

Average snowfall days in December - Rimrock, AZ
  • Average snowfall days in December: 1.2 days

The month with the highest number of snowfall days is February (1.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Rimrock, AZ

Average daylight in December / Average sunshine in December - Rimrock, AZ
  • Average daylight in December: 9h and 53min

The month with the longest days is June (Average daylight: 14h and 26min).
The month with the shortest days is December (Average daylight: 9h and 53min).

  • Average sunshine in December: 6h and 48min

The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

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Average sunshine days in December
Rimrock, AZ

Average sunshine days in December - Rimrock, AZ
  • Average sunshine days in December: 22.9 days

The month with the most sunshine days is May (26.2 days).
The month with the least sunshine days is July (10.4 days).

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Average UV index in December
Rimrock, AZ

Average UV index in December - Rimrock, AZ
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).

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Average cloud cover in December
Rimrock, AZ

Average cloud cover in December - Rimrock, AZ
  • Average cloud cover in December: 23

The month with the most cloud cover is December (Cloud cover 23).
The month with the least cloud cover is June (Cloud cover 6).

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Average visibility in December
Rimrock, AZ

Average visibility in December - Rimrock, 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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