December weather forecastSan Jon, NM
December
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.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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).
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).
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).
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%).
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").
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).
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").
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).
Average daylight in December /
Average sunshine in December
San Jon, NM
- Average daylight in December: 9h and 48min
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).
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).
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).
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).
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).
