December weather forecast
Monticello, NM

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Weather in December

December, the first month of the winter in Monticello, is also a fresh month, with an average temperature fluctuating between 33.4°F (0.8°C) and 51.1°F (10.6°C).

Temperature

The month of December, characterized by an average high of 51.1°F (10.6°C) and a low of 33.4°F (0.8°C), is recognized as the coldest.

Humidity

With an average relative humidity of 50%, December is the most humid month in Monticello.

Rainfall

In Monticello, New Mexico, in December, it is raining for 4.5 days, with typically 0.47" (12mm) of accumulated precipitation. In Monticello, during the entire year, the rain falls for 82.9 days and collects up to 8.54" (217mm) of precipitation.

Snowfall

January through March, November and December are months with snowfall. In December, it is snowing for 1.4 days. Throughout December, 0.71" (18mm) of snow is accumulated. In Monticello, during the entire year, snow falls for 4.4 days and aggregates up to 3.03" (77mm) of snow.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:56 am and sunset at 5:02 pm. On the last day of December, sunrise is at 7:13 am and sunset at 5:12 pm MST.

Sunshine

January and December, with an average of 7.2h of sunshine, are months with the least sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.
Note: The maximum daily UV index of 2 during December translates into the following directions:
While sun exposure does not greatly affect most, individuals with fair skin, babies, and children always need vigilant safeguarding. The Sun's radiation is especially intense around midday; try to stay in shade during this period. Stay sun-safe with clothing that is both closely woven and worn loosely. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.

Frequently asked questions

What are the coldest months?

December tends to be the coldest month, with temperatures averaging a daily high of 51.1°F (10.6°C) and a low of 33.4°F (0.8°C).

What are December temperatures?

The average high-temperature and low-temperature during December are 51.1°F (10.6°C) and 33.4°F (0.8°C) respectively. The average heat index (a.k.a. 'real feel', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, in September is evaluated at 80.6°F (27°C).

What is the most humid month?

With an average relative humidity of 50%, December is the most humid month.

What is the average humidity in December in Monticello?

In Monticello, the average relative humidity in December is 50%.

How much does it rain in December?

In December, the rain falls for 4.5 days. Throughout December, 0.47" (12mm) of precipitation is accumulated.

How much does it snow in December?

In Monticello, during December, snow falls for 1.4 days and regularly aggregates up to 0.71" (18mm) of snow.

What is the month with the shortest days?

The month with the shortest days in Monticello is December, with an average of 10h and 0min of daylight.

How many hours of daylight does Monticello have in December?

In December, the average day length is 9h and 59min.

When are sunrise and sunset in December?

On the first day of December, sunrise is at 6:56 am and sunset at 5:02 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 5:12 pm MST.

What is the month with the least sunshine?

The months with the least sunshine are January and December, with an average of 7.2h of sunshine.

How many hours of sunshine does Monticello have in December?

In December, the average sunshine duration is 7.2h.

When is the lowest UV index in Monticello?

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

How high is the UV index in December?

The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe 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
Monticello, NM

Average temperature in December - Monticello, NM
  • Average high temperature in December: 51.1°F

The warmest month (with the highest average high temperature) is June (90°F).
The month with the lowest average high temperature is December (51.1°F).

  • Average low temperature in December: 33.4°F

The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).

Average pressure in December
Monticello, NM

Average pressure in December - Monticello, NM
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.86"Hg).

Average wind speed in December
Monticello, NM

Average wind speed in December - Monticello, NM
  • Average wind speed in December: 6.1mph

The windiest month (with the highest average wind speed) is April (10mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

Average humidity in December
Monticello, NM

Average humidity in December - Monticello, NM
  • Average humidity in December: 50%

The month with the highest relative humidity is December (50%).
The months with the lowest relative humidity are April and May (23%).

Average rainfall in December
Monticello, NM

Average rainfall in December - Monticello, NM
  • Average rainfall in December: 0.47"

The wettest month (with the highest rainfall) is July (2.13").
The driest month (with the least rainfall) is April (0.12").

Average rainfall days in December
Monticello, NM

Average rainfall days in December - Monticello, NM
  • Average rainfall days in December: 4.5 days

The month with the highest number of rainy days is July (16.9 days).
The month with the least rainy days is November (2.7 days).

Average snowfall in December
Monticello, NM

Average snowfall in December - Monticello, NM
  • Average snowfall in December: 0.71"

The month with the highest snowfall is November (1.46").
The months with the least snowfall are April, May, June, July, August, September and October (0").

Average snowfall days in December
Monticello, NM

Average snowfall days in December - Monticello, NM
  • Average snowfall days in December: 1.4 days

The month with the highest number of snowfall days is December (1.4 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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

Average daylight in December / Average sunshine in December - Monticello, NM
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 7h and 1min

The month with the most sunshine is June (Average sunshine: 12h and 0min).
The months with the least sunshine are January and December (Average sunshine: 7h and 12min).

Average sunshine days in December
Monticello, NM

Average sunshine days in December - Monticello, NM
  • Average sunshine days in December: 24.5 days

The month with the most sunshine days is November (26.5 days).
The month with the least sunshine days is July (7.7 days).

Average UV index in December
Monticello, NM

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

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

Average cloud cover in December
Monticello, NM

Average cloud cover in December - Monticello, NM
  • Average cloud cover in December: 17

The month with the most cloud cover is July (Cloud cover 19).
The month with the least cloud cover is May (Cloud cover 9).

Average visibility in December
Monticello, NM

Average visibility in December - Monticello, NM
  • 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).

Monticello, New Mexico, USA

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