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
McComb's progression into December involves a minor drop in the average high-temperature, slightly receding from a comfortable 66°F (18.9°C) in November to a still refreshing 59°F (15°C). The temperature lowers to an average of 43.7°F (6.5°C) during December nights.Humidity
February and December, with an average relative humidity of 82%, are the most humid months in McComb.Rainfall
In McComb, in December, it is raining for 10.7 days, with typically 1.26" (32mm) of accumulated precipitation. In McComb, Mississippi, during the entire year, the rain falls for 151.2 days and collects up to 17.8" (452mm) of precipitation.Snowfall
January, March and December are months with snowfall. The months with the most snowfall in McComb are January and December, with an average 0.12" (3mm) of accumulated snow.Daylight
The month with the shortest days in McComb is December, with an average of 10h and 12min of daylight.On the first day of the month, sunrise is at 6:43 am and sunset at 4:58 pm. On the last day of December, in McComb, sunrise is at 7:00 am and sunset at 5:09 pm CST.
Sunshine
February and December, with an average of 4.8h of sunshine, are months with the least sunshine.UV index
The months with the lowest UV index in McComb are January and December, 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 rays for ordinary individuals.Note: The maximum UV index of 3 during December leads to these instructions:
Act with care - Obligation to protect against skin and eye damage is highlighted. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in McComb in December?
What are the most humid months in McComb?
What is the average humidity in December in McComb?
How much does it rain in McComb in December?
What is the snowiest month in McComb?
When does it start to snow in McComb?
What is the month with the shortest days in McComb?
How many hours of daylight does McComb have in December?
When is the sunrise / sunset in December in McComb?
What are the months with the least sunshine in McComb?
How long on average sun shines in December in McComb?
What is the month with the lowest UV index in McComb?
How high is the UV index in December in McComb?
Average temperature in December
McComb, MS
- Average high temperature in December: 59°F
The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (56.7°F).
- Average low temperature in December: 43.7°F
The months with the highest average low temperature are July and August (72.1°F).
The coldest month (with the lowest average low temperature) is January (39.7°F).
Average pressure in December
McComb, MS
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.17"Hg).
The months with the lowest atmospheric pressure are June and August (29.97"Hg).
Average wind speed in December
McComb, MS
- Average wind speed in December: 6.5mph
The windiest month (with the highest average wind speed) is April (7mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in December
McComb, MS
- Average humidity in December: 82%
The months with the highest relative humidity are February and December (82%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
McComb, MS
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is August (2.6").
The driest month (with the least rainfall) is November (0.79").
Average rainfall days in December
McComb, MS
- Average rainfall days in December: 10.7 days
The month with the highest number of rainy days is July (20 days).
The month with the least rainy days is November (6.9 days).
Average snowfall in December
McComb, MS
- Average snowfall in December: 0.12"
The months with the highest snowfall are January and December (0.12").
The months with the least snowfall are February, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
McComb, MS
- Average snowfall days in December: 0.3 days
The months with the highest number of snowfall days are January and December (0.3 days).
The months with the least snowfall days are April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
McComb, MS
- 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: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 24min).
The months with the least sunshine are February and December (Average sunshine: 4h and 48min).
Average sunshine days in December
McComb, MS
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is October (21.6 days).
The month with the least sunshine days is July (8.9 days).
Average UV index in December
McComb, 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
McComb, MS
- Average cloud cover in December: 51
The months with the most cloud cover are February and December (Cloud cover 51).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in December
McComb, MS
- Average visibility in December: 5mi
The months with the highest visibility are October and November (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September and December (5mi).
McComb, Mississippi, USA
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