December weather forecast
Pecos, NM

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Weather in December

December, the first month of the winter in Pecos, is also a wintry month, with an average temperature varying between 39.7°F (4.3°C) and 21.6°F (-5.8°C).

Temperature

The beginning of December marks a decrease in the average high-temperature, transitioning from a fresh 50.5°F (10.3°C) in November to a wintry 39.7°F (4.3°C). Nighttime temperatures hover around an average low of 21.6°F (-5.8°C) in December.

Humidity

The average relative humidity in December is 64%.

Rainfall

In Pecos, New Mexico, in December, it is raining for 6.5 days, with typically 0.75" (19mm) of accumulated precipitation. In Pecos, New Mexico, during the entire year, the rain falls for 90.3 days and collects up to 9.8" (249mm) of precipitation.

Snowfall

Months with snowfall are January through May, October through December. The month with the most snowfall is December, when snow falls for 7.9 days and typically aggregates up to 5.71" (145mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 6:54 am and sunset at 4:49 pm. On the last day of December, sunrise is at 7:12 am and sunset at 5:00 pm MST.

Sunshine

The months with the least sunshine are January, February and December, with an average of 7.1h of sunshine.

UV index

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.
Note: In December, the UV index of 2 transforms into the following advice:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Enhance your sun protection with tightly woven, yet airy clothing. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Updated: Aug 11, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

Pecos in December has an average high-temperature of 39.7°F (4.3°C) and an average low-temperature of 21.6°F (-5.8°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which factors the actual air temperature with the relative humidity, is evaluated at 82.4°F (28°C).

What is the average humidity in December in Pecos?

In December, the average relative humidity is 64%.

How many days does it rain in December?

In December, the rain falls for 6.5 days. Throughout December, 0.75" (19mm) of precipitation is accumulated.

When does it snow the most?

December is the month with the most snowfall in Pecos. Snow falls for 7.9 days and accumulates 5.71" (145mm) of snow.

How many days does it snow in December?

In Pecos, during December, snow falls for 7.9 days and regularly aggregates up to 5.71" (145mm) of snow.

What is the month with the shortest days in Pecos?

December has the shortest days of the year in Pecos, New Mexico, with an average of 9h and 48min of daylight.

What is the average length of the day in December?

In December, the average day length in Pecos is 9h and 48min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 6:54 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:00 pm MST.

What are the months with the least sunshine in Pecos?

The months with the least sunshine are January, February and December, with an average of 7.1h of sunshine.

How many hours of sunshine does Pecos have in December?

The average sunshine duration in December is 7.1h.

What are the months with the lowest UV index?

January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December?

In Pecos, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability 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
Pecos, NM

Average temperature in December - Pecos, NM
  • Average high temperature in December: 39.7°F

The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (39.2°F).

  • Average low temperature in December: 21.6°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is December (21.6°F).

Average pressure in December
Pecos, NM

Average pressure in December - Pecos, NM
  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is April (29.88"Hg).

Average wind speed in December
Pecos, NM

Average wind speed in December - Pecos, NM
  • Average wind speed in December: 6.9mph

The windiest month (with the highest average wind speed) is April (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

Average humidity in December
Pecos, NM

Average humidity in December - Pecos, NM
  • Average humidity in December: 64%

The month with the highest relative humidity is January (67%).
The month with the lowest relative humidity is June (32%).

Average rainfall in December
Pecos, NM

Average rainfall in December - Pecos, NM
  • Average rainfall in December: 0.75"

The wettest month (with the highest rainfall) is July (1.73").
The driest month (with the least rainfall) is April (0.55").

Average rainfall days in December
Pecos, NM

Average rainfall days in December - Pecos, NM
  • Average rainfall days in December: 6.5 days

The month with the highest number of rainy days is July (14.3 days).
The month with the least rainy days is November (3.4 days).

Average snowfall in December
Pecos, NM

Average snowfall in December - Pecos, NM
  • Average snowfall in December: 5.71"

The month with the highest snowfall is December (5.71").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Pecos, NM

Average snowfall days in December - Pecos, NM
  • Average snowfall days in December: 7.9 days

The month with the highest number of snowfall days is December (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Pecos, NM
  • 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 48min).

  • 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, February and December (Average sunshine: 7h and 6min).

Average sunshine days in December
Pecos, NM

Average sunshine days in December - Pecos, NM
  • Average sunshine days in December: 21.2 days

The month with the most sunshine days is November (23.6 days).
The month with the least sunshine days is July (8.8 days).

Average UV index in December
Pecos, NM

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

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

Average cloud cover in December
Pecos, NM

Average cloud cover in December - Pecos, NM
  • Average cloud cover in December: 21

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 10).

Average visibility in December
Pecos, NM

Average visibility in December - Pecos, 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).

Pecos, New Mexico, USA

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