December weather forecast
Portair, NM

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Weather in December

December, the first month of the winter in Portair, is still a cool month, with an average temperature fluctuating between 50°F (10°C) and 31.1°F (-0.5°C).

Temperature

December is the coldest month, exhibiting average temperatures of 50°F (10°C) at the peak and 31.1°F (-0.5°C) at the base.

Humidity

With an average relative humidity of 54%, December is the most humid month.

Rainfall

In Portair, New Mexico, during December, the rain falls for 4.3 days and regularly aggregates up to 0.43" (11mm) of precipitation. Throughout the year, there are 86.6 rainfall days, and 11.77" (299mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through April, October through December. In Portair, in December, during 3.5 snowfall days, 1.18" (30mm) of snow is typically accumulated. In Portair, during the entire year, snow falls for 12.8 days and aggregates up to 5.79" (147mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of December, sunrise is at 6:42 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:53 pm MST.

Sunshine

The months with the least sunshine are January, February and December, with an average of 7h of sunshine.

UV index

The month with the lowest UV index is December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a low threat to health from unsafe exposure to UV radiation for the ordinary person.
Note: A maximum high UV index of 2 in December translates into the following recommendations:
Those with sensitive skin, infants, and children require constant safeguarding from prolonged sun exposure. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. Using UVA and UVB-protective sunglasses and sun-protective clothing is effective against UV radiation. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Frequently asked questions

What time of the year is the coldest?

Portair's December weather, with an average high temperature of 50°F (10°C) and an average low temperature of 31.1°F (-0.5°C), tends to be the coldest of the year.

What are the temperatures in December?

In Portair, 50°F (10°C) is the average high-temperature and 31.1°F (-0.5°C) is the average low-temperature during December. In September, the average heat index (a.k.a. 'apparent temperature', 'real feel'), which combines air temperature and relative humidity, is evaluated at 82.4°F (28°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 54%.

What is the average humidity in December?

In December, the average relative humidity is 54%.

How many days does it rain in December?

In Portair, during December, the rain falls for 4.3 days and regularly aggregates up to 0.43" (11mm) of precipitation.

How much does it snow in December?

In December, it is snowing for 3.5 days. Throughout December, 1.18" (30mm) of snow is accumulated.

What is the month with the shortest days in Portair?

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

What is the average length of the day in December?

In December, the average day length is 9h and 54min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 6:42 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 6:59 am and sunset at 4:53 pm MST.

What is the month with the least sunshine?

January, February and December, with an average of 7h of sunshine, are months with the least sunshine.

How long on average sun shines in December in Portair?

In December, the average sunshine duration is 7h.

When is the lowest UV index in Portair?

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

What is the UV index reading in December?

In Portair, the average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low health threat 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
Portair, NM

Average temperature in December - Portair, NM
  • Average high temperature in December: 50°F

The warmest month (with the highest average high temperature) is June (90.7°F).
The month with the lowest average high temperature is December (50°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (69.4°F).
The coldest month (with the lowest average low temperature) is December (31.1°F).

Average pressure in December
Portair, NM

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

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).

Average wind speed in December
Portair, NM

Average wind speed in December - Portair, NM
  • Average wind speed in December: 11.6mph

The windiest month (with the highest average wind speed) is April (13.3mph).
The calmest month (with the lowest average wind speed) is August (9.9mph).

Average humidity in December
Portair, NM

Average humidity in December - Portair, NM
  • Average humidity in December: 54%

The month with the highest relative humidity is December (54%).
The month with the lowest relative humidity is April (34%).

Average rainfall in December
Portair, NM

Average rainfall in December - Portair, NM
  • Average rainfall in December: 0.43"

The wettest month (with the highest rainfall) is October (1.81").
The driest month (with the least rainfall) is November (0.28").

Average rainfall days in December
Portair, NM

Average rainfall days in December - Portair, NM
  • Average rainfall days in December: 4.3 days

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

Average snowfall in December
Portair, NM

Average snowfall in December - Portair, NM
  • Average snowfall in December: 1.18"

The months with the highest snowfall are January and February (1.34").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Portair, NM

Average snowfall days in December - Portair, NM
  • 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 September (0 days).

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

Average daylight in December / Average sunshine in December - Portair, NM
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 7h and 0min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January, February and December (Average sunshine: 7h and 0min).

Average sunshine days in December
Portair, NM

Average sunshine days in December - Portair, NM
  • Average sunshine days in December: 23.7 days

The month with the most sunshine days is January (26.4 days).
The month with the least sunshine days is August (14 days).

Average UV index in December
Portair, NM

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

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

Average cloud cover in December
Portair, NM

Average cloud cover in December - Portair, 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 13).

Average visibility in December
Portair, NM

Average visibility in December - Portair, 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).

Portair, New Mexico, USA

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