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
Onset of December comes with a temperature decline, the average high falling from a refreshing 59.5°F (15.3°C) in November to a fresh 50.5°F (10.3°C). In Harvey, the average nighttime temperature during December is an icy 35.1°F (1.7°C).Humidity
The average relative humidity in December is 77%.Rainfall
In Harvey, during December, the rain falls for 9.7 days and regularly aggregates up to 2.52" (64mm) of precipitation. Throughout the year, in Harvey, Arkansas, there are 147.6 rainfall days, and 36.89" (937mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Harvey, in December, snow falls for 0.3 days, with typically accumulated 0.39" (10mm) of snow. In Harvey, during the entire year, snow falls for 4.3 days and aggregates up to 2.05" (52mm) of snow.Daylight
December has the shortest days of the year in Harvey, with an average of 9h and 54min of daylight.On the first day of December, sunrise is at 7:04 am and sunset at 5:03 pm. On the last day of the month, sunrise is at 7:22 am and sunset at 5:14 pm CST.
Sunshine
In December, the average sunshine in Harvey is 5.5h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
Though the majority can handle prolonged sun exposure, it is crucial to always shield babies, children, and those with fair skin. The Sun's radiation is especially intense around midday; try to stay in shade during this period. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Remember this! The UV radiation of the Sun can be nearly doubled by the reflective properties of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures in Harvey?
What is the average humidity in December in Harvey?
How much does it rain in Harvey in December?
How much does it snow in Harvey in December?
What is the month with the shortest days in Harvey?
How many hours of daylight does Harvey have in December?
When is the sunrise / sunset in December in Harvey?
How long on average sun shines in December in Harvey?
What is the month with the lowest UV index in Harvey?
How high is the UV index in December in Harvey?
Average temperature in December
Harvey, AR
- Average high temperature in December: 50.5°F
The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (48.2°F).
- Average low temperature in December: 35.1°F
The month with the highest average low temperature is July (69.6°F).
The coldest month (with the lowest average low temperature) is January (31.5°F).
Average pressure in December
Harvey, 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
Harvey, AR
- Average wind speed in December: 5.5mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).
Average humidity in December
Harvey, AR
- Average humidity in December: 77%
The months with the highest relative humidity are February, March and May (78%).
The months with the lowest relative humidity are July and August (71%).
Average rainfall in December
Harvey, AR
- Average rainfall in December: 2.52"
The wettest month (with the highest rainfall) is May (5.31").
The driest month (with the least rainfall) is January (2.09").
Average rainfall days in December
Harvey, AR
- Average rainfall days in December: 9.7 days
The month with the highest number of rainy days is August (15.1 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Harvey, AR
- Average snowfall in December: 0.39"
The month with the highest snowfall is February (0.94").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Harvey, AR
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is February (1.8 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
Harvey, 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 54min).
- Average sunshine in December: 5h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 48min).
The month with the least sunshine is January (Average sunshine: 5h and 24min).
Average sunshine days in December
Harvey, AR
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is December (20.1 days).
The month with the least sunshine days is May (13.3 days).
Average UV index in December
Harvey, AR
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Harvey, AR
- Average cloud cover in December: 41
The months with the most cloud cover are February and March (Cloud cover 45).
The months with the least cloud cover are July and August (Cloud cover 26).
Average visibility in December
Harvey, AR
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Harvey, Arkansas, USA
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