December weather forecastTheo, MS
December
Weather in December
December, the first month of the winter in Theo, is also a fresh month, with an average temperature ranging between min 37.8°F (3.2°C) and max 50.9°F (10.5°C).Temperature
Theo's progression into December involves a minor drop in the average high-temperature, slightly receding from a moderate 59°F (15°C) in November to a fresh 50.9°F (10.5°C). In December, Theo records an average nighttime temperature of 37.8°F (3.2°C).Humidity
The months with the highest humidity are March and December, with an average relative humidity of 80%.Rainfall
In Theo, during December, the rain falls for 13.2 days and regularly aggregates up to 3.07" (78mm) of precipitation. In Theo, during the entire year, the rain falls for 166.5 days and collects up to 37.95" (964mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Theo, in December, snow falls for 0.6 days, with typically accumulated 0.08" (2mm) of snow. In Theo, Mississippi, during the entire year, snow falls for 5.9 days and aggregates up to 1.61" (41mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 54min of daylight.On the first day of the month, sunrise is at 6:44 am and sunset at 4:43 pm. On the last day of December, sunrise is at 7:02 am and sunset at 4:53 pm CST.
Sunshine
The average sunshine in December is 4.6h.UV index
With an average maximum UV index of 2, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: In December, a regular UV index of 2 translates into these guidelines:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Direct exposure to the Sun's intense radiation around midday should be avoided for health reasons. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Theo, MS
- Average high temperature in December: 50.9°F
The warmest month (with the highest average high temperature) is July (90°F).
The month with the lowest average high temperature is January (47.5°F).
- Average low temperature in December: 37.8°F
The month with the highest average low temperature is July (70.2°F).
The coldest month (with the lowest average low temperature) is January (32.9°F).
Average pressure in December
Theo, 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
Theo, MS
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (4.7mph).
Average humidity in December
Theo, MS
- Average humidity in December: 80%
The months with the highest relative humidity are March and December (80%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Theo, MS
- Average rainfall in December: 3.07"
The wettest month (with the highest rainfall) is February (4.69").
The driest month (with the least rainfall) is September (2.01").
Average rainfall days in December
Theo, MS
- Average rainfall days in December: 13.2 days
The month with the highest number of rainy days is July (17.3 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Theo, MS
- Average snowfall in December: 0.08"
The month with the highest snowfall is February (0.51").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Theo, MS
- Average snowfall days in December: 0.6 days
The month with the highest number of snowfall days is February (2.3 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Theo, MS
- Average daylight in December: 9h and 54min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 54min).
- Average sunshine in December: 4h and 36min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 30min).
Average sunshine days in December
Theo, MS
- Average sunshine days in December: 16.6 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is July (11.8 days).
Average UV index in December
Theo, MS
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 7).
The month with the lowest UV index is December (UV index 2).
Average cloud cover in December
Theo, MS
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 51).
The months with the least cloud cover are June, August and September (Cloud cover 30).
Average visibility in December
Theo, MS
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and May (5mi).





