Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
With an average high-temperature of 49.3°F (9.6°C) and an average low-temperature of 31.5°F (-0.3°C), December is the coldest month.Humidity
December is the most humid month in Fort Sumner, with an average relative humidity of 52%.Rainfall
In Fort Sumner, in December, during 3.2 rainfall days, 0.51" (13mm) of precipitation is typically accumulated. Throughout the year, there are 78.6 rainfall days, and 9.06" (230mm) of precipitation is accumulated.Snowfall
Months with snowfall in Fort Sumner, New Mexico, are January through April, October through December. In Fort Sumner, during December, snow falls for 3.5 days and regularly aggregates up to 1.65" (42mm) of snow. Throughout the year, there are 13.6 snowfall days, and 8.19" (208mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:45 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:03 am and sunset at 4:57 pm MST.
Sunshine
The months with the least sunshine are January and December, with an average of 7.1h of sunshine.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index, 2 during December, leads to the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun is at its strongest around midday, find shade and limit exposure. Always opt for UVA and UVB-resistant sunglasses on radiant days. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the coldest months?
What is the usual temperature for Fort Sumner in December?
What is the most humid month?
What is the average humidity in December?
How many days does it rain in December in Fort Sumner?
How many days does it snow in December in Fort Sumner?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December in Fort Sumner?
What are the months with the least sunshine?
How many hours of sunshine does Fort Sumner have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Fort Sumner, NM
- Average high temperature in December: 49.3°F
The warmest months (with the highest average high temperature) are June and July (90°F).
The month with the lowest average high temperature is December (49.3°F).
- Average low temperature in December: 31.5°F
The month with the highest average low temperature is July (68.9°F).
The coldest month (with the lowest average low temperature) is January (30.6°F).
Average pressure in December
Fort Sumner, NM
- Average pressure in December: 30.09"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is April (29.86"Hg).
Average wind speed in December
Fort Sumner, NM
- Average wind speed in December: 11.7mph
The windiest month (with the highest average wind speed) is April (12.9mph).
The calmest month (with the lowest average wind speed) is August (9mph).
Average humidity in December
Fort Sumner, NM
- Average humidity in December: 52%
The month with the highest relative humidity is December (52%).
The month with the lowest relative humidity is April (31%).
Average rainfall in December
Fort Sumner, NM
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is July (1.61").
The driest month (with the least rainfall) is January (0.35").
Average rainfall days in December
Fort Sumner, NM
- Average rainfall days in December: 3.2 days
The month with the highest number of rainy days is July (12.5 days).
The month with the least rainy days is November (2.4 days).
Average snowfall in December
Fort Sumner, NM
- Average snowfall in December: 1.65"
The month with the highest snowfall is November (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Fort Sumner, NM
- Average snowfall days in December: 3.5 days
The months with the highest number of snowfall days are January and 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
Fort Sumner, 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 1min
The month with the most sunshine is June (Average sunshine: 11h and 54min).
The months with the least sunshine are January and December (Average sunshine: 7h and 6min).
Average sunshine days in December
Fort Sumner, NM
- Average sunshine days in December: 24.6 days
The month with the most sunshine days is November (25.5 days).
The month with the least sunshine days is July (14 days).
Average UV index in December
Fort Sumner, NM
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Fort Sumner, NM
- Average cloud cover in December: 19
The month with the most cloud cover is December (Cloud cover 19).
The month with the least cloud cover is June (Cloud cover 12).
Average visibility in December
Fort Sumner, 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).
Fort Sumner, New Mexico, USA
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