December weather forecast
San Jon, NM

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Weather in December

December, the first month of the winter in San Jon, is still a chilly month, with an average temperature ranging between min 31.3°F (-0.4°C) and max 48.9°F (9.4°C).

Temperature

The lowest temperatures are recorded in December, with averages reaching a high of 48.9°F (9.4°C) and a low of 31.3°F (-0.4°C).

Humidity

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

Rainfall

In San Jon, during December, the rain falls for 2.5 days and regularly aggregates up to 0.31" (8mm) of precipitation. In San Jon, during the entire year, the rain falls for 73.4 days and collects up to 8.39" (213mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. The month with the most snowfall is December, when snow falls for 2.2 days and typically aggregates up to 1.26" (32mm) of snow.

Daylight

The month with the shortest days in San Jon is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 6:43 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:01 am and sunset at 4:51 pm MST.

Sunshine

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

UV index

With an average maximum UV index of 2, December is the month with the lowest UV index in San Jon, New Mexico. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for average individuals.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Solar radiation peaks around mid-day, so it's wise to limit exposure to the Sun at this time. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
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Frequently asked questions

What is the coldest time of year in San Jon?

December, having an average high-temperature of 48.9°F (9.4°C) and an average low-temperature of 31.3°F (-0.4°C), is the coldest month in San Jon.

What is the temperature in December in San Jon?

An average high-temperature, in December, in San Jon, is 48.9°F (9.4°C) and the average low-temperature is 31.3°F (-0.4°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which represents the influence of relative humidity on air temperature, is computed to be 82.4°F (28°C).

What is the most humid month in San Jon?

With an average relative humidity of 54%, December is the most humid month in San Jon, New Mexico.

What is the average humidity in December in San Jon?

The average relative humidity in December in San Jon, New Mexico, is 54%.

How much does it rain in San Jon in December?

In San Jon, New Mexico, during December, the rain falls for 2.5 days and regularly aggregates up to 0.31" (8mm) of precipitation.

What is the snowiest month in San Jon?

December is the month with the most snowfall. Snow falls for 2.2 days and accumulates 1.26" (32mm) of snow.

How many days does it snow in December in San Jon?

In San Jon, in December, during 2.2 snowfall days, 1.26" (32mm) of snow is typically accumulated.

What is the month with the shortest days in San Jon?

The month with the shortest days in San Jon is December, with an average of 9h and 48min of daylight.

What is the average length of the day in December in San Jon?

The average day length in December is 9h and 50min.

When are sunrise and sunset in December in San Jon?

On the first day of December in San Jon, New Mexico, sunrise is at 6:43 am and sunset at 4:41 pm. On the last day of the month, sunrise is at 7:01 am and sunset at 4:51 pm MST.

What are the months with the least sunshine in San Jon?

January and December, with an average of 7h of sunshine, are months with the least sunshine in San Jon, New Mexico.

How long on average sun shines in December in San Jon?

In San Jon, the average sunshine duration in December is 7h.

What is the month with the lowest UV index in San Jon?

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

How high is the UV index in December in San Jon?

In December, the average daily maximum UV index in San Jon is 2. A UV Index value of 2, and less, symbolizes a minimal hazard to health 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
San Jon, NM

Average temperature in December - San Jon, NM
  • Average high temperature in December: 48.9°F

The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is December (48.9°F).

  • Average low temperature in December: 31.3°F

The month with the highest average low temperature is July (71.1°F).
The coldest month (with the lowest average low temperature) is December (31.3°F).

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Average pressure in December
San Jon, NM

Average pressure in December - San Jon, NM
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The months with the lowest atmospheric pressure are April and June (29.85"Hg).

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Average wind speed in December
San Jon, NM

Average wind speed in December - San Jon, NM
  • Average wind speed in December: 10.1mph

The windiest month (with the highest average wind speed) is April (12.7mph).
The calmest month (with the lowest average wind speed) is January (9.6mph).

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Average humidity in December
San Jon, NM

Average humidity in December - San Jon, 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 (33%).

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Average rainfall in December
San Jon, NM

Average rainfall in December - San Jon, NM
  • Average rainfall in December: 0.31"

The wettest months (with the highest rainfall) are June and October (1.18").
The driest month (with the least rainfall) is January (0.24").

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Average rainfall days in December
San Jon, NM

Average rainfall days in December - San Jon, NM
  • Average rainfall days in December: 2.5 days

The month with the highest number of rainy days is August (11.2 days).
The month with the least rainy days is November (1.8 days).

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Average snowfall in December
San Jon, NM

Average snowfall in December - San Jon, NM
  • Average snowfall in December: 1.26"

The month with the highest snowfall is December (1.26").
The months with the least snowfall are May, June, July, August and September (0").

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Average snowfall days in December
San Jon, NM

Average snowfall days in December - San Jon, NM
  • Average snowfall days in December: 2.2 days

The month with the highest number of snowfall days is February (2.6 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
San Jon, NM

Average daylight in December / Average sunshine in December - San Jon, 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

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

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Average sunshine days in December
San Jon, NM

Average sunshine days in December - San Jon, NM
  • Average sunshine days in December: 26.5 days

The month with the most sunshine days is January (27.6 days).
The month with the least sunshine days is August (15.7 days).

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Average UV index in December
San Jon, NM

Average UV index in December - San Jon, 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).

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Average cloud cover in December
San Jon, NM

Average cloud cover in December - San Jon, NM
  • Average cloud cover in December: 20

The month with the most cloud cover is December (Cloud cover 20).
The month with the least cloud cover is June (Cloud cover 12).

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Average visibility in December
San Jon, NM

Average visibility in December - San Jon, 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).

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San Jon, New Mexico, USA

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