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
With the onset of December, Zachary experiences a modest temperature adjustment, with the average high-temperature gently receding from a pleasant 68°F (20°C) in November to a refreshing 60.6°F (15.9°C). December brings Zachary a consistent average low-temperature of 45.9°F (7.7°C).Humidity
February and December, with an average relative humidity of 82%, are the most humid months.Rainfall
In Zachary, in December, it is raining for 13.4 days, with typically 2.56" (65mm) of accumulated precipitation. Throughout the year, there are 175 rainfall days, and 28.74" (730mm) of precipitation is accumulated.Snowfall
January and December are months with snowfall in Zachary. The months with the most snowfall in Zachary are January and December, with an average 0.2" (5mm) of accumulated snow.Daylight
With an average of 10h and 12min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:44 am and sunset at 5:03 pm. On the last day of December, sunrise is at 7:01 am and sunset at 5:14 pm CST.
Sunshine
With an average of 5h of sunshine, December has the least sunshine of the year.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index in Zachary. A UV Index of 3 to 5 symbolizes a moderate health risk from exposure to the Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 3 in December interprets into the following recommendations:
Be vigilant - Preventing sunburn is recommended. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Frequently asked questions
What is the average December temperature in Zachary?
What is the most humid month in Zachary?
What is the average humidity in December in Zachary?
How many days does it rain in December in Zachary?
What is the snowiest month in Zachary?
When does it start to snow in Zachary?
What is the month with the shortest days in Zachary?
What is the average length of the day in December in Zachary?
When is the sunrise / sunset in December in Zachary?
What is the month with the least sunshine in Zachary?
How long on average sun shines in December in Zachary?
What is the month with the lowest UV index in Zachary?
What is the UV index intensity in December in Zachary?
Average temperature in December
Zachary, LA
- Average high temperature in December: 60.6°F
The warmest month (with the highest average high temperature) is July (91.9°F).
The month with the lowest average high temperature is January (58.3°F).
- Average low temperature in December: 45.9°F
The month with the highest average low temperature is August (73.4°F).
The coldest month (with the lowest average low temperature) is January (41.9°F).
Average pressure in December
Zachary, LA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.96"Hg).
Average wind speed in December
Zachary, LA
- Average wind speed in December: 6.3mph
The windiest month (with the highest average wind speed) is February (6.6mph).
The calmest month (with the lowest average wind speed) is July (4.3mph).
Average humidity in December
Zachary, LA
- Average humidity in December: 82%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Zachary, LA
- Average rainfall in December: 2.56"
The wettest month (with the highest rainfall) is August (3.66").
The driest month (with the least rainfall) is November (1.5").
Average rainfall days in December
Zachary, LA
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is August (22.3 days).
The month with the least rainy days is November (8.5 days).
Average snowfall in December
Zachary, LA
- Average snowfall in December: 0.2"
The months with the highest snowfall are January and December (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Zachary, LA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Zachary, LA
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Zachary, LA
- Average sunshine days in December: 15.5 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is July (6.8 days).
Average UV index in December
Zachary, LA
- Average UV index in December: 3
The months with the highest UV index are May, June and July (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Zachary, LA
- Average cloud cover in December: 49
The months with the most cloud cover are February and December (Cloud cover 49).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Zachary, LA
- Average visibility in December: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
Zachary, Louisiana, USA
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