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 transition to December results in a modest reduction in average high-temperature, moving from an enjoyable 66.7°F (19.3°C) in November to a moderate 59.2°F (15.1°C). In December, Cassandra records an average nighttime temperature of 45°F (7.2°C).Humidity
In Cassandra, the average relative humidity in December is 81%.Rainfall
In December, in Cassandra, the rain falls for 9.8 days. Throughout December, 1.3" (33mm) of precipitation is accumulated. In Cassandra, during the entire year, the rain falls for 133.5 days and collects up to 15.51" (394mm) of precipitation.Snowfall
In Cassandra, snow does not fall in February through December.Daylight
The month with the shortest days is December, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:50 am and sunset at 5:05 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:16 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 4.9h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for the average person.Note: A typical high UV index of 3 in December suggests the following recommendations:
Prioritize safety - Recommendations to avert sunburn are shared. Midday Sun has the strongest UV rays, making it crucial to limit exposure and find shade. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Cassandra in December?
What is the average humidity in December?
How many days does it rain in December?
When it does not snow?
Does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December in Cassandra?
What is the month with the least sunshine in Cassandra?
How long on average sun shines in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Cassandra, LA
- Average high temperature in December: 59.2°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (56.8°F).
- Average low temperature in December: 45°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (41.5°F).
Average pressure in December
Cassandra, LA
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Cassandra, LA
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is February (7.8mph).
The calmest month (with the lowest average wind speed) is July (5.1mph).
Average humidity in December
Cassandra, LA
- Average humidity in December: 81%
The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Cassandra, LA
- Average rainfall in December: 1.3"
The wettest month (with the highest rainfall) is August (1.73").
The driest month (with the least rainfall) is November (0.94").
Average rainfall days in December
Cassandra, LA
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is August (16.1 days).
The month with the least rainy days is November (7.1 days).
Average snowfall in December
Cassandra, LA
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.08").
The months with the least snowfall are February, March, April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Cassandra, LA
- Average snowfall days in December: 0.2 days
The month with the highest number of snowfall days is January (0.4 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Cassandra, 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: 4h and 5min
The months with the most sunshine are June and July (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).
Average sunshine days in December
Cassandra, LA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is October (21.8 days).
The month with the least sunshine days is August (11.2 days).
Average UV index in December
Cassandra, LA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).
Average cloud cover in December
Cassandra, LA
- Average cloud cover in December: 48
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).
Average visibility in December
Cassandra, LA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, October, November and December (6mi).
The months with the lowest visibility are May, July, August and September (5mi).
Cassandra, Louisiana, USA
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