December weather forecast and climate
Jerome, AZ

Weather in December

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

Temperature

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

Humidity

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

Rainfall

In Jerome, 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

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

Daylight

With an average of 9.9h of daylight, December has the shortest days of the year.

Sunshine

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

UV index

December is the month with the lowest UV index, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low threat to health from the exposure to the Sun's UV rays for the average person.
Note: The average daily UV index of 2 transform into the following instructions:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. A wide-brim hat offers excellent sun protection for eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Tightly woven, loose-fitting clothes provide additional protection from the Sun. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the coldest month in Jerome?

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

What is the temperature in December in Jerome?

The average high-temperature, in December, in Jerome, Arizona, is 50.7°F (10.4°C), while the average low-temperature is 31.8°F (-0.1°C).

What is the most humid month in Jerome?

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

What is the average humidity in December in Jerome?

The average relative humidity in December in Jerome is 57%.

How many days does it rain in December in Jerome?

In Jerome, in December, it is raining for 6.7 days, with typically 1.22" (31mm) of accumulated precipitation.

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.

When does it snow the most in Jerome?

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

What is the month with the shortest days in Jerome?

December has the shortest days of the year in Jerome, with an average of 9.9h of daylight.

How many hours of daylight does Jerome have in December?

The average length of the day in December in Jerome, Arizona, is 9.9h.

What is the month with the least sunshine in Jerome?

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

How long on average sun shines in December in Jerome?

The average sunshine in December in Jerome is 6.9h.

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

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

What is the UV index intensity in December in Jerome?

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

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"

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

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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").
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).
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: 9.9h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.9h).

  • Average sunshine in December: 6.9h

Months with the most sunshine are June and August (Average sunshine: 12.1h).
Months with the least sunshine are January and December (Average sunshine: 6.9).

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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

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

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