December weather forecastLanark, WV
December
Weather in December
The first month of the winter, December, is also a wintry month in Lanark, West Virginia, with an average temperature varying between 30°F (-1.1°C) and 42.4°F (5.8°C).Temperature
December heralds a minor drop in average high-temperature, sliding from November's fresh 50.4°F (10.2°C) to an icy 42.4°F (5.8°C). Lanark observes an average nighttime temperature of 30°F (-1.1°C) during December.Humidity
The average relative humidity in December is 82%.Rainfall
In Lanark, in December, it is raining for 13.3 days, with typically 3.62" (92mm) of accumulated precipitation. In Lanark, during the entire year, the rain falls for 189.8 days and collects up to 36.5" (927mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, in Lanark, it is snowing for 12.6 days. Throughout December, 7.48" (190mm) of snow is accumulated. In Lanark, during the entire year, snow falls for 64.5 days and aggregates up to 40.55" (1030mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year in Lanark.On the first day of December in Lanark, sunrise is at 7:21 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:39 am and sunset at 5:15 pm EST.
Sunshine
In Lanark, the average sunshine in December is 4.4h.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 reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The average daily UV index of 2 in December transforms into the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Observe! Snow reflection can nearly intensify 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
Lanark, WV
- Average high temperature in December: 42.4°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (37°F).
- Average low temperature in December: 30°F
The month with the highest average low temperature is July (59.5°F).
The coldest month (with the lowest average low temperature) is January (23.4°F).
Average pressure in December
Lanark, WV
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Lanark, WV
- Average wind speed in December: 6.9mph
The windiest months (with the highest average wind speed) are January and February (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.2mph).
Average humidity in December
Lanark, WV
- Average humidity in December: 82%
The month with the highest relative humidity is February (84%).
The months with the lowest relative humidity are June, July, August and November (78%).
Average rainfall in December
Lanark, WV
- Average rainfall in December: 3.62"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Lanark, WV
- Average rainfall days in December: 13.3 days
The month with the highest number of rainy days is May (22.3 days).
The month with the least rainy days is November (11.9 days).
Average snowfall in December
Lanark, WV
- Average snowfall in December: 7.48"
The month with the highest snowfall is February (8.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lanark, WV
- Average snowfall days in December: 12.6 days
The month with the highest number of snowfall days is January (16.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lanark, WV
- Average daylight in December: 9h and 36min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 24min
The months with the most sunshine are July and August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Lanark, WV
- Average sunshine days in December: 9.5 days
The month with the most sunshine days is November (14.4 days).
The month with the least sunshine days is February (6.8 days).
Average UV index in December
Lanark, WV
- Average UV index in December: 2
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Lanark, WV
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 37).
Average visibility in December
Lanark, WV
- Average visibility in December: 5mi
The months with the highest visibility are March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are January, February and September (4mi).
