December weather forecast and climate
Gallup, NM

Weather in December

The first month of the winter, December, is also a wintry month in Gallup, New Mexico, with average temperature fluctuating between 40.1°F (4.5°C) and 22.6°F (-5.2°C).

Temperature

In Gallup, the average high-temperature decreases, from a cool 51.4°F (10.8°C) in November, to a wintry 40.1°F (4.5°C). In December, the average low-temperature is 22.6°F (-5.2°C).

Humidity

The average relative humidity in December is 66%.

Rainfall

In Gallup, during December, the rain falls for 3.7 days and regularly aggregates up to 0.55" (14mm) of precipitation. In Gallup, during the entire year, the rain falls for 69.2 days and collects up to 6.69" (170mm) of precipitation.

Snowfall

Months with snowfall in Gallup are January through May, October through December. In Gallup, snow falls for 5.9 days, with typically accumulated 2.6" (66mm) of snow. Throughout the year, there are 24.1 snowfall days, and 10.91" (277mm) of snow is accumulated.

Daylight

The month with the shortest days in Gallup, New Mexico, is December, with an average of 9.8h of daylight.

Sunshine

January and December, with an average of 6.5h of sunshine, are months with the least sunshine in Gallup.

UV index

Months with the lowest UV index in Gallup are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from the exposure to the Sun's UV rays for ordinary individuals.
Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the temperature in December in Gallup?

In Gallup, New Mexico, in December, the average high-temperature is 40.1°F (4.5°C), and the average low-temperature is 22.6°F (-5.2°C).

What is the average humidity in December in Gallup?

In December, the average relative humidity in Gallup, New Mexico, is 66%.

How many days does it rain in December in Gallup?

In Gallup, in December, it is raining for 3.7 days, with typically 0.55" (14mm) of accumulated precipitation.

How much does it snow in Gallup in December?

In Gallup, New Mexico, in December, during 5.9 snowfall days, 2.6" (66mm) of snow is typically accumulated.

What is the month with the shortest days in Gallup?

December has the shortest days of the year in Gallup, New Mexico, with an average of 9.8h of daylight.

How many hours of daylight does Gallup have in December?

In December, the average length of the day is 9.8h.

What is the month with the least sunshine in Gallup?

Months with the least sunshine in Gallup are January and December, with an average of 6.5h of sunshine.

How long on average sun shines in December in Gallup?

In December, the average sunshine is 6.5h.

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

Months with the lowest UV index in Gallup, New Mexico, are January, February, November and December, with an average maximum UV index of 2.

What is the UV index reading in December in Gallup?

The average daily maximum UV index in December in Gallup, New Mexico, is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to the UV radiation.

Average temperature in December
Gallup, NM

Average temperature in December - Gallup, NM
  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (38.7°F).

  • Average low temperature in December: 22.6°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (21.7°F).

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Average pressure in December
Gallup, NM

Average pressure in December - Gallup, NM
  • Average pressure in December: 30.13"

The month with the highest atmospheric pressure is January (30.19").
The month with the lowest atmospheric pressure is June (29.87").

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Average wind speed in December
Gallup, NM

Average wind speed in December - Gallup, NM
  • Average wind speed in December: 7.7mph

The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is January (6.8mph).

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Average humidity in December
Gallup, NM

Average humidity in December - Gallup, NM
  • Average humidity in December: 66%

The month with the highest relative humidity is January (70%).
The month with the lowest relative humidity is June (23%).

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Average rainfall in December
Gallup, NM

Average rainfall in December - Gallup, NM
  • Average rainfall in December: 0.55"

The wettest month (with the highest rainfall) is July (1.06").
The driest months (with the least rainfall) are May and June (0.24").

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Average rainfall days in December
Gallup, NM

Average rainfall days in December - Gallup, NM
  • Average rainfall days in December: 3.7 days

The month with the highest number of rainy days is July (12.9 days).
The month with the least rainy days is February (2.6 days).

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Average snowfall in December
Gallup, NM

Average snowfall in December - Gallup, NM
  • Average snowfall in December: 2.6"

The month with the highest snowfall is January (2.91").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Gallup, NM

Average snowfall days in December - Gallup, NM
  • Average snowfall days in December: 5.9 days

The month with the highest number of snowfall days is January (6.3 days).
Months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Gallup, NM

Average daylight in December / Average sunshine in December - Gallup, NM
  • Average daylight in December: 9.8h

The month with the longest days is June (Average daylight: 14.5h).
The month with the shortest days is December (Average daylight: 9.8h).

  • Average sunshine in December: 6.5h

The month with the most sunshine is June (Average sunshine: 11.9h).
Months with the least sunshine are January and December (Average sunshine: 6.5).

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Average sunshine days in December
Gallup, NM

Average sunshine days in December - Gallup, NM
  • Average sunshine days in December: 22.4 days

The month with the most sunshine days is June (25.1 days).
The month with the least sunshine days is July (14.4 days).

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Average UV index in December
Gallup, NM

Average UV index in December - Gallup, NM
  • Average UV index in December: 2

Months with the highest UV index are June, July and August (UV index 6).
Months with the lowest UV index are January, February, November and December (UV index 2).

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Average cloud cover in December
Gallup, NM

Average cloud cover in December - Gallup, NM
  • Average cloud cover in December: 27

The month with the most cloud cover is January (Cloud cover 28).
The month with the least cloud cover is June (Cloud cover 10).

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Average visibility in December
Gallup, NM

Average visibility in December - Gallup, NM
  • Average visibility in December: 6mi

Months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).

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