December weather forecastLewisville, IN
December
Weather in December
December, the first month of the winter in Lewisville, is still a cold month, with an average temperature varying between 27.9°F (-2.3°C) and 37.9°F (3.3°C).Temperature
Lewisville in December undergoes a mild reduction in the average high-temperature, shifting from November's frosty 48.6°F (9.2°C) to an icy 37.9°F (3.3°C). Lewisville usually reports an average low-temperature of 27.9°F (-2.3°C) during the month of December.Humidity
January and December, with an average relative humidity of 83%, are the most humid months in Lewisville.Rainfall
In Lewisville, in December, during 10.3 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Lewisville, during the entire year, the rain falls for 169.4 days and collects up to 31.77" (807mm) of precipitation.Snowfall
Months with snowfall in Lewisville are January through April, October through December. In Lewisville, during December, snow falls for 9.9 days and regularly aggregates up to 3.27" (83mm) of snow. In Lewisville, during the entire year, snow falls for 42.7 days and aggregates up to 13.82" (351mm) of snow.Daylight
The month with the shortest days in Lewisville is December, with an average of 9h and 24min of daylight.On the first day of December in Lewisville, Indiana, sunrise is at 7:44 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:26 pm EST.
Sunshine
In Lewisville, the average sunshine in December is 4h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for the ordinary person.Note: The daily high UV index of 1 during December translates into the following recommendations:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Lewisville, IN
- Average high temperature in December: 37.9°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (64.4°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Lewisville, IN
- Average pressure in December: 30.12"Hg
The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Lewisville, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).
Average humidity in December
Lewisville, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Lewisville, IN
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (3.9").
The driest month (with the least rainfall) is February (1.85").
Average rainfall days in December
Lewisville, IN
- Average rainfall days in December: 10.3 days
The month with the highest number of rainy days is May (19.7 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Lewisville, IN
- Average snowfall in December: 3.27"
The month with the highest snowfall is January (3.31").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Lewisville, IN
- Average snowfall days in December: 9.9 days
The month with the highest number of snowfall days is January (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lewisville, IN
- Average daylight in December: 9h and 24min
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: 4h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Lewisville, IN
- Average sunshine days in December: 13 days
The months with the most sunshine days are October and November (16.1 days).
The month with the least sunshine days is May (9.1 days).
Average UV index in December
Lewisville, IN
- Average UV index in December: 1
The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Lewisville, IN
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Lewisville, IN
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).
