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 brings a slight decrease in temperature, down from 65.1°F (18.4°C) in November to a still refreshing 58.1°F (14.5°C). Saint Joseph's average low-temperature during December nights is observed to be a chilly 44.1°F (6.7°C).Humidity
The average relative humidity in December in Saint Joseph is 80%.Rainfall
In Saint Joseph, during December, the rain falls for 12.9 days and regularly aggregates up to 3.35" (85mm) of precipitation. In Saint Joseph, Louisiana, during the entire year, the rain falls for 154.1 days and collects up to 35.12" (892mm) of precipitation.Snowfall
In Saint Joseph, Louisiana, snow does not fall in April through December.Daylight
With an average of 10h and 6min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:47 am and sunset at 5:00 pm. On the last day of December, sunrise is at 7:05 am and sunset at 5:11 pm CST.
Sunshine
With an average of 4.8h of sunshine, December has the least sunshine of the year in Saint Joseph.UV index
January and December, with an average maximum UV index of 3, are months with the lowest UV index in Saint Joseph, Louisiana. A UV Index of 3 to 5 symbolizes a moderate threat to health from exposure to the Sun's UV radiation for average individuals.Note: The maximum daily UV index of 3 during December translates into the following directions:
Exercise prudence. Persons with fair skin could be burned in under 30 minutes. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days.
Frequently asked questions
What is the average December temperature in Saint Joseph?
What is the average humidity in December in Saint Joseph?
How much does it rain in Saint Joseph in December?
When it does not snow in Saint Joseph?
Does it snow in Saint Joseph in December?
What is the month with the shortest days in Saint Joseph?
How many hours of daylight does Saint Joseph have in December?
When are sunrise and sunset in December in Saint Joseph?
What is the month with the least sunshine in Saint Joseph?
How long on average sun shines in December in Saint Joseph?
When is the lowest UV index in Saint Joseph?
What is the UV index reading in December in Saint Joseph?
Average temperature in December
Saint Joseph, LA
- Average high temperature in December: 58.1°F
The warmest month (with the highest average high temperature) is July (91.2°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in December: 44.1°F
The month with the highest average low temperature is August (73°F).
The coldest month (with the lowest average low temperature) is January (40.3°F).
Average pressure in December
Saint Joseph, LA
- 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 (29.96"Hg).
Average wind speed in December
Saint Joseph, LA
- Average wind speed in December: 7.6mph
The windiest month (with the highest average wind speed) is February (8.3mph).
The calmest months (with the lowest average wind speed) are July and September (5.3mph).
Average humidity in December
Saint Joseph, 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 (69%).
Average rainfall in December
Saint Joseph, LA
- Average rainfall in December: 3.35"
The wettest month (with the highest rainfall) is April (3.43").
The driest month (with the least rainfall) is November (2.13").
Average rainfall days in December
Saint Joseph, LA
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is August (15.5 days).
The month with the least rainy days is October (8.5 days).
Average snowfall in December
Saint Joseph, LA
- Average snowfall in December: 0"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September, October, November and December (0").
Average snowfall days in December
Saint Joseph, LA
- Average snowfall days in December: 0 days
The month with the highest number of snowfall days is January (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September, October, November and December (0 days).
Average daylight in December /
Average sunshine in December
Saint Joseph, LA
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Saint Joseph, LA
- Average sunshine days in December: 15.8 days
The month with the most sunshine days is October (21.4 days).
The month with the least sunshine days is February (13.3 days).
Average UV index in December
Saint Joseph, 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
Saint Joseph, LA
- Average cloud cover in December: 47
The month with the most cloud cover is February (Cloud cover 48).
The months with the least cloud cover are June and October (Cloud cover 28).
Average visibility in December
Saint Joseph, 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 Joseph, Louisiana, USA
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