December weather forecastSaint Joseph, LA
December
Weather in December
The first month of the winter, December, is still a refreshing month in Saint Joseph, Louisiana, with temperature in the range of an average high of 58.1°F (14.5°C) and an average low of 44.1°F (6.7°C).Temperature
December's onset corresponds with a subtle shift in the average high-temperature, slightly moving from 65.1°F (18.4°C) in November to a still refreshing 58.1°F (14.5°C). Saint Joseph witnesses a consistent average low-temperature of 44.1°F (6.7°C) throughout December.Humidity
The average relative humidity in December is 80%.Rainfall
In Saint Joseph, in December, during 12.9 rainfall days, 3.35" (85mm) of precipitation is typically accumulated. Throughout the year, there are 154.1 rainfall days, and 35.12" (892mm) of precipitation is accumulated.Snowfall
In Saint Joseph, 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
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unsafe exposure to UV radiation for ordinary individuals.Note: In December, the maximum UV index of 3 transforms into these recommendations:
Undertake precautions - Obligation exists to protect against skin and eye damage. Being exposed to the midday Sun can have harmful effects due to strong UV radiation; always take precautions. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
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 6min
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 48min
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).
