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
As December begins, there is a minor decrease in the average high-temperature, softly falling from a mild 59.7°F (15.4°C) in November to a fresh 51.1°F (10.6°C). December nights are marked by an average low-temperature of 38.5°F (3.6°C).Humidity
In Hayley, the average relative humidity in December is 76%.Rainfall
In Hayley, in December, during 10.8 rainfall days, 3.19" (81mm) of precipitation is typically accumulated. In Hayley, Arkansas, during the entire year, the rain falls for 148.5 days and collects up to 35.67" (906mm) of precipitation.Snowfall
January through March, November and December are months with snowfall. In Hayley, Arkansas, during December, snow falls for 0.5 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, in Hayley, there are 4.1 snowfall days, and 2.56" (65mm) of snow is accumulated.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:56 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:14 am and sunset at 5:05 pm CST.
Sunshine
In Hayley, the average sunshine in December is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 3, are months with the lowest UV index in Hayley. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for the average person.Note: The daily high UV index of 3 during December translates into the following recommendations:
Undertake protective steps - Recommendations to avoid sunburn are issued. To protect against the Sun's most potent rays, avoid direct exposure around midday. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures 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 Hayley have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Hayley have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Hayley, AR
- Average high temperature in December: 51.1°F
The warmest month (with the highest average high temperature) is July (90.1°F).
The month with the lowest average high temperature is January (47.3°F).
- Average low temperature in December: 38.5°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (34.2°F).
Average pressure in December
Hayley, 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
Hayley, AR
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Hayley, AR
- Average humidity in December: 76%
The month with the highest relative humidity is March (78%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Hayley, AR
- Average rainfall in December: 3.19"
The wettest month (with the highest rainfall) is April (4.17").
The driest month (with the least rainfall) is September (1.77").
Average rainfall days in December
Hayley, AR
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is May (15.5 days).
The months with the least rainy days are October and November (9.6 days).
Average snowfall in December
Hayley, AR
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (0.79").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Hayley, AR
- Average snowfall days in December: 0.5 days
The month with the highest number of snowfall days is January (1.5 days).
The months with the least snowfall days are April, May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hayley, AR
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Hayley, AR
- Average sunshine days in December: 18 days
The month with the most sunshine days is October (20.4 days).
The month with the least sunshine days is July (13.5 days).
Average UV index in December
Hayley, AR
- Average UV index in December: 3
The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are January, February, November and December (UV index 3).
Average cloud cover in December
Hayley, AR
- Average cloud cover in December: 43
The month with the most cloud cover is February (Cloud cover 46).
The months with the least cloud cover are June and August (Cloud cover 26).
Average visibility in December
Hayley, 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).
Hayley, Arkansas, USA
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