December weather forecastPort Gibson, MS
December
Weather in December
December, the first month of the winter in Port Gibson, is still a mild month, with an average temperature ranging between max 58.1°F (14.5°C) and min 43.7°F (6.5°C).Temperature
Port Gibson observes a small decrease in the average high-temperature with the arrival of December, falling from November's comfortable 65.5°F (18.6°C) to a still refreshing 58.1°F (14.5°C). During December, Port Gibson observes a consistent average nighttime temperature of 43.7°F (6.5°C).Humidity
February and December, with an average relative humidity of 81%, are the most humid months in Port Gibson.Rainfall
In Port Gibson, in December, it is raining for 11.2 days, with typically 1.85" (47mm) of accumulated precipitation. In Port Gibson, during the entire year, the rain falls for 141.8 days and collects up to 23.39" (594mm) of precipitation.Snowfall
January through March and December are months with snowfall. December is the first month it typically snows. Throughout December, in the average 0.3 snowfall days, it receives 0.08" (2mm) of snow. In Port Gibson, during the entire year, snow falls for 1.9 days and aggregates up to 0.75" (19mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 6min of daylight.On the first day of the month, sunrise is at 6:47 am and sunset at 4:59 pm. On the last day of December, sunrise is at 7:04 am and sunset at 5:10 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 4.8h of sunshine.UV index
The months with the lowest UV index in Port Gibson are January and December, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a moderate health risk from unsafe exposure to UV radiation for the average person.Note: A maximum high daily UV index of 3 during December translates into the following directions:
Undertake precautions - Guarding against sun damage is counselled. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Be watchful! The reflection of snow can enhance the intensity of the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Port Gibson, MS
- Average high temperature in December: 58.1°F
The warmest month (with the highest average high temperature) is August (92.1°F).
The month with the lowest average high temperature is January (55°F).
- Average low temperature in December: 43.7°F
The month with the highest average low temperature is July (72.7°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in December
Port Gibson, MS
- 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
Port Gibson, MS
- Average wind speed in December: 7.1mph
The windiest month (with the highest average wind speed) is February (7.6mph).
The calmest months (with the lowest average wind speed) are August and September (5mph).
Average humidity in December
Port Gibson, MS
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (69%).
Average rainfall in December
Port Gibson, MS
- Average rainfall in December: 1.85"
The wettest month (with the highest rainfall) is August (2.83").
The driest month (with the least rainfall) is November (1.22").
Average rainfall days in December
Port Gibson, MS
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is August (17.4 days).
The month with the least rainy days is October (6.9 days).
Average snowfall in December
Port Gibson, MS
- Average snowfall in December: 0.08"
The month with the highest snowfall is January (0.47").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Port Gibson, MS
- Average snowfall days in December: 0.3 days
The month with the highest number of snowfall days is January (0.7 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Port Gibson, MS
- 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 30min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Port Gibson, MS
- Average sunshine days in December: 17.5 days
The month with the most sunshine days is October (22.6 days).
The month with the least sunshine days is August (11 days).
Average UV index in December
Port Gibson, MS
- 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
Port Gibson, MS
- Average cloud cover in December: 48
The months with the most cloud cover are February and December (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 29).
Average visibility in December
Port Gibson, MS
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, September, October, November and December (6mi).
The months with the lowest visibility are May, July and August (5mi).
