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 average high-temperature slightly decreases in December, shifting from a mild 58.3°F (14.6°C) in November to a frosty 49.5°F (9.7°C). Throughout December, Harrisburg witnesses a consistent average low-temperature of 37.4°F (3°C).Humidity
The average relative humidity in December is 77%.Rainfall
In December, the rain falls for 10 days. Throughout December, 3.23" (82mm) of precipitation is accumulated. Throughout the year, there are 152.8 rainfall days, and 37.28" (947mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In December, it is snowing for 0.7 days. Throughout December, 0.51" (13mm) of snow is accumulated. Throughout the year, there are 5.6 snowfall days, and 3.7" (94mm) 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 December, sunrise is at 6:54 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 5:00 pm CST.
Sunshine
In December, the average sunshine in Harrisburg is 5.2h.UV index
The months with the lowest UV index in Harrisburg, Arkansas, are January, February, November and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: A daily high UV index of 3 in December leads to these guidelines:
Prioritize safety - The need to safeguard skin and eyes from harm is emphasized. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. For excellent sun protection for the eyes, ears, face, and neck, consider a wide-brim hat. Guard yourself! Snow reflection can almost double the UV radiation from the Sun.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the temperature in December in Harrisburg?
What is the average humidity in December in Harrisburg?
How many days does it rain in December in Harrisburg?
How many days does it snow in December in Harrisburg?
What is the month with the shortest days in Harrisburg?
What is the average length of the day in December in Harrisburg?
What time are sunrise and sunset in December in Harrisburg?
How long on average sun shines in December in Harrisburg?
What are the months with the lowest UV index in Harrisburg?
What is the UV index intensity in December in Harrisburg?
Average temperature in December
Harrisburg, AR
- Average high temperature in December: 49.5°F
The warmest month (with the highest average high temperature) is July (89.1°F).
The month with the lowest average high temperature is January (45.5°F).
- Average low temperature in December: 37.4°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 (32.9°F).
Average pressure in December
Harrisburg, 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 (29.93"Hg).
Average wind speed in December
Harrisburg, AR
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is February (9.6mph).
The calmest month (with the lowest average wind speed) is August (5.7mph).
Average humidity in December
Harrisburg, 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 (67%).
Average rainfall in December
Harrisburg, AR
- Average rainfall in December: 3.23"
The wettest month (with the highest rainfall) is May (4.17").
The driest month (with the least rainfall) is January (2.28").
Average rainfall days in December
Harrisburg, AR
- Average rainfall days in December: 10 days
The month with the highest number of rainy days is July (15.7 days).
The month with the least rainy days is December (10 days).
Average snowfall in December
Harrisburg, AR
- Average snowfall in December: 0.51"
The month with the highest snowfall is February (1.1").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Harrisburg, AR
- Average snowfall days in December: 0.7 days
The months with the highest number of snowfall days are January and February (1.9 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
Harrisburg, 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 54min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Harrisburg, AR
- Average sunshine days in December: 19 days
The month with the most sunshine days is October (19.5 days).
The month with the least sunshine days is July (12.9 days).
Average UV index in December
Harrisburg, 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
Harrisburg, AR
- Average cloud cover in December: 44
The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 24).
Average visibility in December
Harrisburg, 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).
Harrisburg, Arkansas, USA
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