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
Start of December brings a shift in the average high-temperature, falling from November's cool 54.9°F (12.7°C) to a chilly 45.7°F (7.6°C). The average temperature during December nights dips to a cold 33.8°F (1°C).Humidity
The average relative humidity in December is 78%.Rainfall
In December, the rain falls for 7.4 days. Throughout December, 0.79" (20mm) of precipitation is accumulated. Throughout the year, there are 114.1 rainfall days, and 10.63" (270mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Semiway, in December, snow falls for 2.1 days, with typically accumulated 0.08" (2mm) of snow. In Semiway, during the entire year, snow falls for 12.5 days and aggregates up to 1.34" (34mm) of snow.Daylight
With an average of 9h and 36min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 6:45 am and sunset at 4:31 pm. On the last day of the month, sunrise is at 7:03 am and sunset at 4:41 pm CST.
Sunshine
In Semiway, the average sunshine in December is 4.6h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Semiway have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Semiway, KY
- Average high temperature in December: 45.7°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (40.3°F).
- Average low temperature in December: 33.8°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in December
Semiway, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Semiway, KY
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.2mph).
The calmest month (with the lowest average wind speed) is July (5.4mph).
Average humidity in December
Semiway, KY
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Semiway, KY
- Average rainfall in December: 0.79"
The wettest month (with the highest rainfall) is February (1.18").
The driest month (with the least rainfall) is September (0.35").
Average rainfall days in December
Semiway, KY
- Average rainfall days in December: 7.4 days
The month with the highest number of rainy days is July (13.1 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in December
Semiway, KY
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.63").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Semiway, KY
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is January (3.7 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
Semiway, KY
- Average daylight in December: 9h and 4min
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 4min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Semiway, KY
- Average sunshine days in December: 20.6 days
The month with the most sunshine days is November (21.8 days).
The month with the least sunshine days is July (14.8 days).
Average UV index in December
Semiway, KY
- 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
Semiway, KY
- Average cloud cover in December: 51
The month with the most cloud cover is January (Cloud cover 54).
The month with the least cloud cover is June (Cloud cover 28).
Average visibility in December
Semiway, KY
- 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).
Semiway, Kentucky, USA
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