December weather forecast
Aztec, NM

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Weather in December

December brings the ineffable magic of winter back to Aztec, New Mexico as temperatures sink to an average low of 22.8°F (-5.1°C). As compared to the previous month, the city sees an increase in the level of snowfall, humidity, and atmospheric pressure. December's shorter days and longer nights, along with the city's festive atmosphere, provide a perfect backdrop for myriad winter activities. Despite the dip in temperatures, the city remains a hub of energy and activities, welcoming the new year with joy and excitement.

Temperature

In December, the average high-temperature in Aztec decreases from a fresh 50.7°F (10.4°C) in November to a wintry 38.3°F (3.5°C). Throughout the month of December, the nighttime temperature in Aztec dips to an average of 22.8°F (-5.1°C).

Humidity

The average relative humidity in December in Aztec is 68%.

Rainfall

In Aztec, in December, during 5.5 rainfall days, 0.98" (25mm) of precipitation is typically accumulated. In Aztec, during the entire year, the rain falls for 88.2 days and collects up to 10.67" (271mm) of precipitation.

Snowfall

Months with snowfall are January through April, October through December. In Aztec, in December, during 7.3 snowfall days, 4.72" (120mm) of snow is typically accumulated. Throughout the year, in Aztec, there are 25.6 snowfall days, and 17.28" (439mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 42min of daylight.
On the first day of the month, sunrise is at 7:06 am and sunset at 4:55 pm. On the last day of December, in Aztec, sunrise is at 7:24 am and sunset at 5:06 pm MST.

Sunshine

In Aztec, the average sunshine in December is 6.5h.

UV index

The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: The maximum daily UV index of 2 during December translates into the following directions:
Babies, children, and those with sensitive skin should always avoid extended periods in the sun. To avoid the Sun's strongest rays, limit exposure around the mid-day period. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Pay attention! The reflection of snow can enhance the Sun's UV radiation almost double.
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Frequently asked questions

How cold is it in Aztec in December?

The high-temperature during December is 38.3°F (3.5°C) and the low-temperature is 22.8°F (-5.1°C).

What is the average humidity in December in Aztec?

In Aztec, New Mexico, the average relative humidity in December is 68%.

How many days does it rain in December in Aztec?

In Aztec, New Mexico, in December, it is raining for 5.5 days, with typically 0.98" (25mm) of accumulated precipitation.

How many days does it snow in December in Aztec?

In Aztec, in December, snow falls for 7.3 days, with typically accumulated 4.72" (120mm) of snow.

What is the month with the shortest days in Aztec?

December has the shortest days of the year in Aztec, with an average of 9h and 42min of daylight.

What is the average length of the day in December in Aztec?

In Aztec, New Mexico, the average day length in December is 9h and 41min.

What time are sunrise and sunset in December in Aztec?

In December, on the first day of the month, sunrise is at 7:06 am and sunset at 4:55 pm. On the last day of the month, in Aztec, sunrise is at 7:24 am and sunset at 5:06 pm MST.

How long on average sun shines in December in Aztec?

The average sunshine duration in December in Aztec is 6.5h.

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

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

What is the UV index reading in December in Aztec?

In Aztec, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Today
Tomorrow
Long-term
YearJFMAMJJASONDecember
Nov
December
Jan
Average high temperature
50.7°F 10.4°C
38.3°F 3.5°C
36°F 2.2°C
Average low temperature
31.8°F -0.1°C
22.8°F -5.1°C
19.8°F -6.8°C
Average pressure
30.1" 765mmHg
30.15" 766mmHg
30.22" 768mmHg
Average wind speed
6.2mph 10km/h
5.7mph 9.2km/h
5.3mph 8.5km/h
Average max. wind speed
7.3mph 11.7km/h
6.3mph 10.1km/h
6mph 9.7km/h
Average wind speed gusts
10.3mph 16.6km/h
9.7mph 15.6km/h
9.2mph 14.8km/h
Average humidity
50%
68%
76%
Average rainfall
0.59" 15mm
0.98" 25mm
0.91" 23mm
Average rainfall days
3.7
5.5
5
Average snowfall
0.94" 24mm
4.72" 120mm
5.91" 150mm
Average snowfall days
2.1
7.3
6.3
Average daylight
10h 1min
9h 4min
10h 0min
Average sunshine
7h 1min
6h 3min
6h 1min
Average sunshine days
23.8
21.4
22.1
Average UV index
2
2
2
Average cloud cover
16%
28%
31%
Average visibility
6mi 9.7km
6mi 9.7km
5mi 8km

Average temperature in December
Aztec, NM

Average temperature in December - Aztec, NM
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (36°F).

  • Average low temperature in December: 22.8°F

The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

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Average pressure in December
Aztec, NM

Average pressure in December - Aztec, NM
  • Average pressure in December: 30.15"Hg

The month with the highest atmospheric pressure is January (30.22"Hg).
The months with the lowest atmospheric pressure are May and June (29.9"Hg).

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Average wind speed in December
Aztec, NM

Average wind speed in December - Aztec, NM
  • Average wind speed in December: 5.7mph

The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is January (5.3mph).

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Average humidity in December
Aztec, NM

Average humidity in December - Aztec, NM
  • Average humidity in December: 68%

The month with the highest relative humidity is January (76%).
The month with the lowest relative humidity is June (25%).

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Average rainfall in December
Aztec, NM

Average rainfall in December - Aztec, NM
  • Average rainfall in December: 0.98"

The wettest month (with the highest rainfall) is August (1.38").
The driest month (with the least rainfall) is June (0.35").

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Average rainfall days in December
Aztec, NM

Average rainfall days in December - Aztec, NM
  • Average rainfall days in December: 5.5 days

The month with the highest number of rainy days is July (13.7 days).
The month with the least rainy days is November (3.7 days).

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Average snowfall in December
Aztec, NM

Average snowfall in December - Aztec, NM
  • Average snowfall in December: 4.72"

The month with the highest snowfall is January (5.91").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
Aztec, NM

Average snowfall days in December - Aztec, NM
  • Average snowfall days in December: 7.3 days

The month with the highest number of snowfall days is December (7.3 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Aztec, NM
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).

  • Average sunshine in December: 6h and 3min

The month with the most sunshine is June (Average sunshine: 11h and 54min).
The month with the least sunshine is January (Average sunshine: 6h and 12min).

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Average sunshine days in December
Aztec, NM

Average sunshine days in December - Aztec, NM
  • Average sunshine days in December: 21.4 days

The month with the most sunshine days is November (23.8 days).
The month with the least sunshine days is July (13.6 days).

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Average UV index in December
Aztec, NM

Average UV index in December - Aztec, 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).

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Average cloud cover in December
Aztec, NM

Average cloud cover in December - Aztec, NM
  • Average cloud cover in December: 28

The month with the most cloud cover is January (Cloud cover 31).
The month with the least cloud cover is June (Cloud cover 10).

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Average visibility in December
Aztec, NM

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

The 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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Aztec, New Mexico, USA

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