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 arrival of December suggests a slight decrease in the average high-temperature, moving from a pleasant 68.4°F (20.2°C) in November to a comfortable 62.4°F (16.9°C). The nights of December anticipate an average low-temperature of 47.8°F (8.8°C).Humidity
In Saint Martinville, the average relative humidity in December is 80%.Rainfall
In Saint Martinville, in December, during 10.6 rainfall days, 1.14" (29mm) of precipitation is typically accumulated. In Saint Martinville, during the entire year, the rain falls for 139.5 days and collects up to 15.47" (393mm) of precipitation.Snowfall
January and December are months with snowfall. December is the month with the most snowfall. Snow falls for 0.1 days and accumulates 0.12" (3mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 12min of daylight.On the first day of the month, sunrise is at 6:46 am and sunset at 5:06 pm. On the last day of December, sunrise is at 7:03 am and sunset at 5:17 pm CST.
Sunshine
With an average of 5.1h of sunshine, December has the least sunshine of the year.UV index
December is the month with the lowest UV index, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a medium health hazard from exposure to the Sun's UV radiation for average individuals.Note: A typical high UV index of 3 in December suggests the following recommendations:
Make use of precautions - Suggestions to resist sunburn are communicated. The Sun's radiation is especially intense around midday; try to stay in shade during this period. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Consider this! The reflection from snow can almost double the intensity of the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
When does it snow the most?
When does it start snowing?
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 Saint Martinville?
What is the month with the least sunshine?
How many hours of sunshine does Saint Martinville have in December?
When is the lowest UV index in Saint Martinville?
What is the UV index intensity in December?
Average temperature in December
Saint Martinville, LA
- Average high temperature in December: 62.4°F
The warmest month (with the highest average high temperature) is August (90.1°F).
The month with the lowest average high temperature is January (59°F).
- Average low temperature in December: 47.8°F
The months with the highest average low temperature are July and August (75°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).
Average pressure in December
Saint Martinville, LA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June, August and September (29.96"Hg).
Average wind speed in December
Saint Martinville, LA
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is February (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Saint Martinville, LA
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (73%).
Average rainfall in December
Saint Martinville, LA
- Average rainfall in December: 1.14"
The wettest months (with the highest rainfall) are July and August (2.44").
The driest month (with the least rainfall) is March (0.63").
Average rainfall days in December
Saint Martinville, LA
- Average rainfall days in December: 10.6 days
The month with the highest number of rainy days is August (19 days).
The month with the least rainy days is November (6.6 days).
Average snowfall in December
Saint Martinville, LA
- Average snowfall in December: 0.12"
The month with the highest snowfall is December (0.12").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Saint Martinville, LA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.2 days).
The months with the least snowfall days are February, March, April, May, June, July, August, October and November (0 days).
Average daylight in December /
Average sunshine in December
Saint Martinville, 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 1min
The month with the most sunshine is June (Average sunshine: 10h and 42min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Saint Martinville, LA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is August (8.2 days).
Average UV index in December
Saint Martinville, LA
- Average UV index in December: 3
The months with the highest UV index are June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Saint Martinville, LA
- Average cloud cover in December: 46
The months with the most cloud cover are February and December (Cloud cover 46).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility in December
Saint Martinville, 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).
Saint Martinville, Louisiana, USA
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