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
A modest decline in the average high-temperature is seen during December, decreasing from a comfortable 67.3°F (19.6°C) in November to a still enjoyable 60.8°F (16°C). Harmon records a steady low-temperature average of 44.6°F (7°C) during December.Humidity
December is the most humid month, with an average relative humidity of 80%.Rainfall
In Harmon, during December, the rain falls for 10.1 days and regularly aggregates up to 1.22" (31mm) of precipitation. Throughout the year, there are 147.6 rainfall days, and 16.65" (423mm) of precipitation is accumulated.Snowfall
Months with snowfall in Harmon are January, February and December. December is the month with the most snowfall. Snow falls for 0.3 days and accumulates 0.16" (4mm) of snow.Daylight
The month with the shortest days is December, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:38 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:06 pm CST.
Sunshine
December has the least sunshine of the year, with an average of 4.7h of sunshine.UV index
The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from unprotected exposure to Sun's UV rays for average individuals.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Ensure safety - Recommendations to avert sunburn are presented. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Boost your sun resistance with garments that are densely woven yet spacious. Mind this! Nearly twice the UV radiation from the Sun can be reflected by the snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What is the usual temperature for Harmon in December?
What is the most humid month in Harmon?
What is the average humidity in December in Harmon?
How many days does it rain in December in Harmon?
What is the snowiest month in Harmon?
When does it start snowing in Harmon?
What is the month with the shortest days in Harmon?
What is the average length of the day in December in Harmon?
When is the sunrise / sunset in December in Harmon?
What is the month with the least sunshine in Harmon?
How long on average sun shines in December in Harmon?
What is the month with the lowest UV index in Harmon?
How high is the UV index in December in Harmon?
Average temperature in December
Harmon, MS
- Average high temperature in December: 60.8°F
The warmest month (with the highest average high temperature) is July (91.8°F).
The month with the lowest average high temperature is January (57.7°F).
- Average low temperature in December: 44.6°F
The month with the highest average low temperature is July (73.4°F).
The coldest month (with the lowest average low temperature) is January (40.1°F).
Average pressure in December
Harmon, 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
Harmon, MS
- Average wind speed in December: 6mph
The windiest month (with the highest average wind speed) is April (6.5mph).
The calmest month (with the lowest average wind speed) is July (4.2mph).
Average humidity in December
Harmon, MS
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Harmon, MS
- Average rainfall in December: 1.22"
The wettest month (with the highest rainfall) is August (2.64").
The driest month (with the least rainfall) is November (0.75").
Average rainfall days in December
Harmon, MS
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is August (20.5 days).
The month with the least rainy days is November (6.3 days).
Average snowfall in December
Harmon, MS
- Average snowfall in December: 0.16"
The month with the highest snowfall is December (0.16").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Harmon, 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 March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Harmon, 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 4min
The month with the most sunshine is June (Average sunshine: 10h and 18min).
The month with the least sunshine is December (Average sunshine: 4h and 42min).
Average sunshine days in December
Harmon, MS
- Average sunshine days in December: 18.4 days
The month with the most sunshine days is November (22.3 days).
The month with the least sunshine days is July (8.6 days).
Average UV index in December
Harmon, 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
Harmon, MS
- Average cloud cover in December: 53
The month with the most cloud cover is December (Cloud cover 53).
The month with the least cloud cover is October (Cloud cover 31).
Average visibility in December
Harmon, MS
- Average visibility in December: 5mi
The month with the highest visibility is October (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, November and December (5mi).
Harmon, Mississippi, USA
Weather forecast for your location
2. Allow the app to use your location