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
Smithfield's transition into December involves a shift in temperature, receding from a cool 50.5°F (10.3°C) in November to a wintry 41.5°F (5.3°C). During the month of December, the temperature falls to an average of 29.3°F (-1.5°C).Humidity
In Smithfield, the average relative humidity in December is 82%.Rainfall
In December, the rain falls for 13.1 days. Throughout December, 3.35" (85mm) of precipitation is accumulated. In Smithfield, West Virginia, during the entire year, the rain falls for 188.6 days and collects up to 39.17" (995mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Smithfield, in December, snow falls for 10.7 days, with typically accumulated 4.29" (109mm) of snow. In Smithfield, during the entire year, snow falls for 52.1 days and aggregates up to 24.21" (615mm) of snow.Daylight
December has the shortest days of the year in Smithfield, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:24 am and sunset at 4:58 pm. On the last day of December, in Smithfield, West Virginia, sunrise is at 7:42 am and sunset at 5:08 pm EST.
Sunshine
The average sunshine in December in Smithfield is 3.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Smithfield. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 2 in December converts into the following recommendations:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Being in direct Sun during midday can be harmful due to intense solar radiation; take precautions. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Smithfield?
What is the average humidity in December in Smithfield?
How many days does it rain in December in Smithfield?
How much does it snow in Smithfield in December?
What is the month with the shortest days in Smithfield?
What is the average length of the day in December in Smithfield?
What time are sunrise and sunset in December in Smithfield?
How many hours of sunshine does Smithfield have in December?
When is the lowest UV index in Smithfield?
What is the UV index reading in December in Smithfield?
Average temperature in December
Smithfield, WV
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (83.1°F).
The month with the lowest average high temperature is January (35.8°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (22.5°F).
Average pressure in December
Smithfield, WV
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Smithfield, WV
- Average wind speed in December: 6.3mph
The windiest months (with the highest average wind speed) are January and February (7mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Smithfield, WV
- Average humidity in December: 82%
The months with the highest relative humidity are January and February (84%).
The month with the lowest relative humidity is August (77%).
Average rainfall in December
Smithfield, WV
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is May (4.53").
The driest month (with the least rainfall) is November (2.24").
Average rainfall days in December
Smithfield, WV
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is May (21.3 days).
The month with the least rainy days is January (10.8 days).
Average snowfall in December
Smithfield, WV
- Average snowfall in December: 4.29"
The month with the highest snowfall is February (6.18").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Smithfield, WV
- Average snowfall days in December: 10.7 days
The month with the highest number of snowfall days is January (15 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Smithfield, WV
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 3h and 3min
The month with the most sunshine is August (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Smithfield, WV
- Average sunshine days in December: 10.8 days
The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is May (7.8 days).
Average UV index in December
Smithfield, WV
- Average UV index in December: 2
The months with the highest UV index are May and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Smithfield, WV
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 69).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Smithfield, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).
Smithfield, West Virginia, USA
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