December weather forecastGrandview, TN
December
Weather in December
The first month of the winter, December, is still a chilly month in Grandview, Tennessee, with an average temperature ranging between min 34.7°F (1.5°C) and max 48.6°F (9.2°C).Temperature
With December's onset, the weather reveals a slight temperature decrease, transitioning from a refreshing 56.3°F (13.5°C) in November to a chilly 48.6°F (9.2°C). In December, Grandview reports a consistent average low-temperature of 34.7°F (1.5°C) during the nights.Humidity
The most humid month in Grandview is December, with an average relative humidity of 80%.Rainfall
In December, in Grandview, the rain falls for 13 days. Throughout December, 3.98" (101mm) of precipitation is accumulated. Throughout the year, in Grandview, there are 176 rainfall days, and 40.51" (1029mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Grandview, in December, snow falls for 2 days, with typically accumulated 0.79" (20mm) of snow. Throughout the year, in Grandview, Tennessee, there are 11.6 snowfall days, and 2.91" (74mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 48min of daylight.On the first day of December, sunrise is at 7:31 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 7:49 am and sunset at 5:36 pm EST.
Sunshine
With an average of 4.9h of sunshine, December has the least sunshine of the year in Grandview, Tennessee.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index in Grandview. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: A maximum high daily UV index of 2 during December translates into the following directions:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. Sun's radiation is most powerful around mid-day, so it's best to limit outdoor activities during this time. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Grandview, TN
- Average high temperature in December: 48.6°F
The warmest month (with the highest average high temperature) is July (86.5°F).
The month with the lowest average high temperature is January (44.6°F).
- Average low temperature in December: 34.7°F
The month with the highest average low temperature is July (65.3°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).
Average pressure in December
Grandview, TN
- Average pressure in December: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Grandview, TN
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (3.9mph).
Average humidity in December
Grandview, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are October and November (76%).
Average rainfall in December
Grandview, TN
- Average rainfall in December: 3.98"
The wettest month (with the highest rainfall) is July (4.21").
The driest month (with the least rainfall) is September (2.52").
Average rainfall days in December
Grandview, TN
- Average rainfall days in December: 13 days
The month with the highest number of rainy days is July (19.2 days).
The month with the least rainy days is November (9.5 days).
Average snowfall in December
Grandview, TN
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Grandview, TN
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (3.8 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
Grandview, TN
- 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: 4h and 54min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Grandview, TN
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (18.8 days).
The month with the least sunshine days is July (10 days).
Average UV index in December
Grandview, TN
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Grandview, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 31).
Average visibility in December
Grandview, TN
- Average visibility in December: 5mi
The months with the highest visibility are February, April, June, October and November (6mi).
The months with the lowest visibility are January, March, May, July, August, September and December (5mi).
