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
December's arrival signals a moderate reduction in the average high-temperature, easing from an agreeable 68.9°F (20.5°C) in November to an enjoyable 61.9°F (16.6°C). In Johnson Bayou Landing, in December, the average low-temperature is a fresh 50.2°F (10.1°C).Humidity
In December, the average relative humidity is 79%.Rainfall
In Johnson Bayou Landing, during December, the rain falls for 8.7 days and regularly aggregates up to 0.71" (18mm) of precipitation. Throughout the year, in Johnson Bayou Landing, there are 132.6 rainfall days, and 12.09" (307mm) of precipitation is accumulated.Snowfall
December is the only month when snow falls in Johnson Bayou Landing, Louisiana. December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.04" (1mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 18min of daylight.On the first day of the month, sunrise is at 6:53 am and sunset at 5:15 pm. On the last day of December, in Johnson Bayou Landing, Louisiana, sunrise is at 7:10 am and sunset at 5:26 pm CST.
Sunshine
December has the least sunshine of the year in Johnson Bayou Landing, with an average of 5h of sunshine.UV index
With an average maximum UV index of 3, December is the month with the lowest UV index. A UV Index of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.Note: The UV index of 3 during December leads to these advisories:
Prioritize safety - Recommendations to avert sunburn are shared. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Frequently asked questions
What is the average December temperature in Johnson Bayou Landing?
What is the average humidity in December in Johnson Bayou Landing?
How many days does it rain in December in Johnson Bayou Landing?
What is the snowiest month in Johnson Bayou Landing?
When does it start to snow in Johnson Bayou Landing?
What is the month with the shortest days in Johnson Bayou Landing?
How many hours of daylight does Johnson Bayou Landing have in December?
What time are sunrise and sunset in December in Johnson Bayou Landing?
What is the month with the least sunshine in Johnson Bayou Landing?
How long on average sun shines in December in Johnson Bayou Landing?
What is the month with the lowest UV index in Johnson Bayou Landing?
How high is the UV index in December in Johnson Bayou Landing?
Average temperature in December
Johnson Bayou Landing, LA
- Average high temperature in December: 61.9°F
The warmest month (with the highest average high temperature) is August (91°F).
The month with the lowest average high temperature is January (59.5°F).
- Average low temperature in December: 50.2°F
The month with the highest average low temperature is July (78.4°F).
The coldest month (with the lowest average low temperature) is January (46.9°F).
Average pressure in December
Johnson Bayou Landing, LA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Johnson Bayou Landing, LA
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is April (10.1mph).
The calmest month (with the lowest average wind speed) is August (7mph).
Average humidity in December
Johnson Bayou Landing, LA
- Average humidity in December: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Johnson Bayou Landing, LA
- Average rainfall in December: 0.71"
The wettest month (with the highest rainfall) is August (2.09").
The driest month (with the least rainfall) is April (0.43").
Average rainfall days in December
Johnson Bayou Landing, LA
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is August (17.9 days).
The months with the least rainy days are January and November (7.8 days).
Average snowfall in December
Johnson Bayou Landing, LA
- Average snowfall in December: 0.04"
The month with the highest snowfall is December (0.04").
The months with the least snowfall are January, February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Johnson Bayou Landing, 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
Johnson Bayou Landing, LA
- Average daylight in December: 10h and 2min
The month with the longest days is June (Average daylight: 14h and 0min).
The month with the shortest days is December (Average daylight: 10h and 18min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is August (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 0min).
Average sunshine days in December
Johnson Bayou Landing, LA
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is January (21.3 days).
The month with the least sunshine days is August (8.8 days).
Average UV index in December
Johnson Bayou Landing, LA
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Johnson Bayou Landing, LA
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 26).
Average visibility in December
Johnson Bayou Landing, LA
- 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).
Johnson Bayou Landing, Louisiana, USA
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