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
The start of December involves a temperature drop, moving from a frosty 47.7°F (8.7°C) in November to a wintry 36.5°F (2.5°C). Lewisburg encounters an average low-temperature of 26.6°F (-3°C) during December nights.Humidity
In December, the average relative humidity is 82%.Rainfall
The month with the least rainfall is December, when the rain falls for 8.4 days and typically collects 1.02" (26mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Lewisburg, Indiana, in December, snow falls for 7.3 days, with typically accumulated 1.18" (30mm) of snow. In Lewisburg, Indiana, during the entire year, snow falls for 36.1 days and aggregates up to 7.8" (198mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:50 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 8:08 am and sunset at 5:27 pm EST.
Sunshine
In December, the average sunshine is 4.1h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for ordinary individuals.Note: In December, the maximum UV index of 1 translates into these guidelines:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Experience reduced UV exposure by about half when donning a wide-brim hat. On your guard! Snow's reflection 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
How cold is it in December?
What is the average humidity in December?
What is the driest month?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Lewisburg have in December?
What time are sunrise and sunset in December?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index intensity in December in Lewisburg?
Average temperature in December
Lewisburg, IN
- Average high temperature in December: 36.5°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (30.7°F).
- Average low temperature in December: 26.6°F
The month with the highest average low temperature is July (63.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Lewisburg, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Lewisburg, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).
Average humidity in December
Lewisburg, IN
- Average humidity in December: 82%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Lewisburg, IN
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is May (2.48").
The driest month (with the least rainfall) is December (1.02").
Average rainfall days in December
Lewisburg, IN
- Average rainfall days in December: 8.4 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is January (6.1 days).
Average snowfall in December
Lewisburg, IN
- Average snowfall in December: 1.18"
The month with the highest snowfall is February (2.05").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Lewisburg, IN
- Average snowfall days in December: 7.3 days
The month with the highest number of snowfall days is January (10.1 days).
The months with the least snowfall days are June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Lewisburg, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 1min
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
Lewisburg, IN
- Average sunshine days in December: 17 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.3 days).
Average UV index in December
Lewisburg, IN
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Lewisburg, IN
- Average cloud cover in December: 58
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are June, July, August and September (Cloud cover 34).
Average visibility in December
Lewisburg, IN
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Lewisburg, Indiana, USA
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