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 arrival of December signals a shift in temperature, down from a refreshing 57.2°F (14°C) in November to a frosty 47.1°F (8.4°C). In the month of December, the temperature generally rests at an average low of 32.2°F (0.1°C).Humidity
The average relative humidity in December is 74%.Rainfall
In Siloam Springs, in December, during 8.9 rainfall days, 2.13" (54mm) of precipitation is typically accumulated. Throughout the year, there are 156 rainfall days, and 34.41" (874mm) of precipitation is accumulated.Snowfall
January through March, May, November and December are months with snowfall. In Siloam Springs, in December, during 2.4 snowfall days, 0.59" (15mm) of snow is typically accumulated. In Siloam Springs, during the entire year, snow falls for 12.2 days and aggregates up to 4.21" (107mm) of snow.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:11 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:13 pm CST.
Sunshine
January and December, with an average of 5.4h of sunshine, are months with the least sunshine in Siloam Springs.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the ordinary person.Note: A maximum daily UV index of 2 during December morphs into the following directions:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Siloam Springs in December?
What is the average humidity in December?
How many days 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 Siloam Springs have in December?
What time are sunrise and sunset in December in Siloam Springs?
What is the month with the least sunshine?
How many hours of sunshine does Siloam Springs have in December?
What are the months with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Siloam Springs, AR
- Average high temperature in December: 47.1°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (44.4°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (69.8°F).
The coldest month (with the lowest average low temperature) is January (28.8°F).
Average pressure in December
Siloam Springs, AR
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are April and June (29.93"Hg).
Average wind speed in December
Siloam Springs, AR
- Average wind speed in December: 8.8mph
The windiest month (with the highest average wind speed) is April (10.4mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Siloam Springs, AR
- Average humidity in December: 74%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are August and October (71%).
Average rainfall in December
Siloam Springs, AR
- Average rainfall in December: 2.13"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in December
Siloam Springs, AR
- Average rainfall days in December: 8.9 days
The months with the highest number of rainy days are May and July (16.8 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Siloam Springs, AR
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Siloam Springs, AR
- Average snowfall days in December: 2.4 days
The months with the highest number of snowfall days are January and February (3.3 days).
The months with the least snowfall days are June, July and August (0 days).
Average daylight in December /
Average sunshine in December
Siloam Springs, AR
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 36min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The months with the least sunshine are January and December (Average sunshine: 5h and 24min).
Average sunshine days in December
Siloam Springs, AR
- Average sunshine days in December: 19 days
The month with the most sunshine days is December (19 days).
The month with the least sunshine days is July (11.2 days).
Average UV index in December
Siloam Springs, AR
- Average UV index in December: 2
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January and December (UV index 2).
Average cloud cover in December
Siloam Springs, AR
- Average cloud cover in December: 41
The months with the most cloud cover are February and March (Cloud cover 45).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Siloam Springs, AR
- 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).
Siloam Springs, Arkansas, USA
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