December weather forecastKeo, AR
December
Weather in December
The first month of the winter, December, is still a cool month in Keo, Arkansas, with an average temperature fluctuating between 51.1°F (10.6°C) and 38.3°F (3.5°C).Temperature
Welcoming December, Keo observes a shift in the average high-temperature, falling from November's mild 60.1°F (15.6°C) to a cool 51.1°F (10.6°C). Keo, in December, observes a steady average low-temperature of 38.3°F (3.5°C).Humidity
The average relative humidity in December in Keo is 77%.Rainfall
In Keo, in December, it is raining for 9.6 days, with typically 1.65" (42mm) of accumulated precipitation. In Keo, during the entire year, the rain falls for 139.8 days and collects up to 23.66" (601mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Keo, in December, snow falls for 0.5 days, with typically accumulated 0.08" (2mm) of snow. In Keo, Arkansas, during the entire year, snow falls for 4 days and aggregates up to 0.98" (25mm) of snow.Daylight
The month with the shortest days in Keo is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:57 am and sunset at 4:57 pm. On the last day of December, sunrise is at 7:14 am and sunset at 5:07 pm CST.
Sunshine
The average sunshine in December in Keo is 5.3h.UV index
The months with the lowest UV index in Keo, Arkansas, are January, February, November and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium vulnerability from exposure to the Sun's UV radiation for the average person.Note: During December, 3 as the daily maximum UV index converts into the following advice:
Adopt protective measures - Requirement to safeguard skin and eyes from harm exists. Limiting sun exposure during midday hours helps in reducing the harmful effects of UV radiation. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Keo, AR
- Average high temperature in December: 51.1°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (48.7°F).
- Average low temperature in December: 38.3°F
The month with the highest average low temperature is July (72.1°F).
The coldest month (with the lowest average low temperature) is January (34.3°F).
Average pressure in December
Keo, AR
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Keo, AR
- Average wind speed in December: 8mph
The windiest month (with the highest average wind speed) is February (8.8mph).
The calmest months (with the lowest average wind speed) are July and August (5.5mph).
Average humidity in December
Keo, AR
- Average humidity in December: 77%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Keo, AR
- Average rainfall in December: 1.65"
The wettest month (with the highest rainfall) is April (2.76").
The driest month (with the least rainfall) is January (1.34").
Average rainfall days in December
Keo, AR
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (17.6 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Keo, AR
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Keo, AR
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is February (1.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Keo, AR
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 5h and 18min
The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 5h and 0min).
Average sunshine days in December
Keo, AR
- Average sunshine days in December: 19.1 days
The month with the most sunshine days is October (21.1 days).
The month with the least sunshine days is July (11.3 days).
Average UV index in December
Keo, AR
- Average UV index in December: 3
The months with the highest UV index are June and July (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Keo, AR
- Average cloud cover in December: 42
The month with the most cloud cover is February (Cloud cover 45).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in December
Keo, 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).





