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
December shows a mild decline in the average high-temperature, falling from November's frosty 47.3°F (8.5°C) to an icy 36.1°F (2.3°C). An average low-temperature of 26.4°F (-3.1°C) is anticipated throughout the nights during December.Humidity
In Thornhope, the average relative humidity in December is 82%.Rainfall
In Thornhope, in December, during 8.5 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Thornhope, during the entire year, the rain falls for 151.6 days and collects up to 21.26" (540mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Thornhope, during December, snow falls for 9.3 days and regularly aggregates up to 1.77" (45mm) of snow. Throughout the year, there are 45.1 snowfall days, and 10.16" (258mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:52 am and sunset at 5:18 pm. On the last day of the month, sunrise is at 8:10 am and sunset at 5:28 pm EST.
Sunshine
In December, the average sunshine in Thornhope is 3.9h.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 1 during December translates into the following guidance:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Caution! The reflection of snow can nearly 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?
How much does it rain in December?
How many days does it snow in December?
What is the month with the shortest days in Thornhope?
How many hours of daylight does Thornhope have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Thornhope have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Thornhope, IN
- Average high temperature in December: 36.1°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (30.4°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).
Average pressure in December
Thornhope, IN
- Average pressure in December: 30.1"Hg
The months with the highest atmospheric pressure are January and November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Thornhope, IN
- Average wind speed in December: 9.6mph
The windiest month (with the highest average wind speed) is January (10.3mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Thornhope, IN
- Average humidity in December: 82%
The months with the highest relative humidity are July and August (84%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Thornhope, IN
- Average rainfall in December: 1.14"
The wettest month (with the highest rainfall) is May (2.99").
The driest month (with the least rainfall) is February (0.98").
Average rainfall days in December
Thornhope, IN
- Average rainfall days in December: 8.5 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is January (6 days).
Average snowfall in December
Thornhope, IN
- Average snowfall in December: 1.77"
The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Thornhope, IN
- Average snowfall days in December: 9.3 days
The month with the highest number of snowfall days is January (13 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Thornhope, IN
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 5min
The months with the most sunshine are June and July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Thornhope, IN
- Average sunshine days in December: 14.7 days
The month with the most sunshine days is November (16.5 days).
The month with the least sunshine days is June (9.8 days).
Average UV index in December
Thornhope, IN
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Thornhope, IN
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Thornhope, 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).
Thornhope, Indiana, USA
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