December weather forecast
Jerome, AZ

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Weather in December

The first month of the winter, December, is also a fresh month in Jerome, Arizona, with an average temperature fluctuating between 31.8°F (-0.1°C) and 50.7°F (10.4°C).

Temperature

Jerome notes the coldest temperatures in December, with a high average of 50.7°F (10.4°C) and a low of 31.8°F (-0.1°C).

Humidity

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

Rainfall

In Jerome, Arizona, in December, it is raining for 6.7 days, with typically 1.22" (31mm) of accumulated precipitation. In Jerome, during the entire year, the rain falls for 79 days and collects up to 11.42" (290mm) of precipitation.

Snowfall

Months with snowfall are January through April, September, November and December. December is the month with the most snowfall in Jerome. Snow falls for 3.5 days and accumulates 4.02" (102mm) of snow.

Daylight

The month with the shortest days in Jerome, Arizona, is December, with an average of 9h and 54min of daylight.
On the first day of December in Jerome, sunrise is at 7:18 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 7:35 am and sunset at 5:27 pm MST.

Sunshine

The months with the least sunshine in Jerome are January and December, with an average of 6.9h of sunshine.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum UV index of 2 in December translates into the following recommendations:
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. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. 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 Jerome?

With an average high-temperature of 50.7°F (10.4°C) and an average low-temperature of 31.8°F (-0.1°C), December is the coldest month in Jerome.

What are the temperatures in Jerome in December?

The high-temperature in Jerome, Arizona, during December is 50.7°F (10.4°C) and the low-temperature is 31.8°F (-0.1°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 80.6°F (27°C).

What is the most humid month in Jerome?

With an average relative humidity of 57%, December is the most humid month in Jerome.

What is the average humidity in December in Jerome?

The average relative humidity in December is 57%.

How many days does it rain in December in Jerome?

In Jerome, Arizona, during December, the rain falls for 6.7 days and regularly aggregates up to 1.22" (31mm) of precipitation.

When does it snow the most in Jerome?

December is the month with the most snowfall. Snow falls for 3.5 days and accumulates 4.02" (102mm) of snow.

How many days does it snow in December in Jerome?

In Jerome, during December, snow falls for 3.5 days and regularly aggregates up to 4.02" (102mm) of snow.

What is the month with the shortest days in Jerome?

With an average of 9h and 54min of daylight, December has the shortest days of the year.

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

In December, the average day length in Jerome is 9h and 52min.

When is the sunrise / sunset in December in Jerome?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 5:17 pm. On the last day of the month, in Jerome, sunrise is at 7:35 am and sunset at 5:27 pm MST.

What are the months with the least sunshine in Jerome?

The months with the least sunshine in Jerome are January and December, with an average of 6.9h of sunshine.

How long on average sun shines in December in Jerome?

The average sunshine duration in December in Jerome is 6.9h.

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

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

How high is the UV index in December in Jerome?

In Jerome, Arizona, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to Sun's UV rays.
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
Jerome, AZ

Average temperature in December - Jerome, AZ
  • Average high temperature in December: 50.7°F

The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is December (50.7°F).

  • Average low temperature in December: 31.8°F

The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is December (31.8°F).

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Average pressure in December
Jerome, AZ

Average pressure in December - Jerome, 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
Jerome, AZ

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

The windiest months (with the highest average wind speed) are April and May (7.2mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

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Average humidity in December
Jerome, AZ

Average humidity in December - Jerome, 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
Jerome, AZ

Average rainfall in December - Jerome, AZ
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is July (1.65").
The driest month (with the least rainfall) is June (0.12").

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Average rainfall days in December
Jerome, AZ

Average rainfall days in December - Jerome, AZ
  • Average rainfall days in December: 6.7 days

The month with the highest number of rainy days is July (14.2 days).
The month with the least rainy days is June (1.5 days).

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Average snowfall in December
Jerome, AZ

Average snowfall in December - Jerome, AZ
  • Average snowfall in December: 4.02"

The month with the highest snowfall is December (4.02").
The months with the least snowfall are May, June, July, August and October (0").

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Average snowfall days in December
Jerome, AZ

Average snowfall days in December - Jerome, AZ
  • Average snowfall days in December: 3.5 days

The month with the highest number of snowfall days is December (3.5 days).
The months with the least snowfall days are May, June, July, August and October (0 days).

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

Average daylight in December / Average sunshine in December - Jerome, 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 54min).

  • Average sunshine in December: 6h and 5min

The months with the most sunshine are June and August (Average sunshine: 12h and 6min).
The months with the least sunshine are January and December (Average sunshine: 6h and 54min).

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Average sunshine days in December
Jerome, AZ

Average sunshine days in December - Jerome, AZ
  • Average sunshine days in December: 22.3 days

The month with the most sunshine days is June (27.3 days).
The month with the least sunshine days is August (11.5 days).

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Average UV index in December
Jerome, AZ

Average UV index in December - Jerome, 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
Jerome, AZ

Average cloud cover in December - Jerome, AZ
  • Average cloud cover in December: 22

The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 6).

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Average visibility in December
Jerome, AZ

Average visibility in December - Jerome, 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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Jerome, Arizona, USA

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