December weather forecastJohnson, MS
December
Weather in December
December, the first month of the winter in Johnson, is also a moderate month, with an average temperature varying between 59.4°F (15.2°C) and 43.3°F (6.3°C).Temperature
Johnson's progression into December involves a gentle drop in the average high-temperature, from a comfortable 66.2°F (19°C) in November to a mild 59.4°F (15.2°C). December nights cool down to an average low-temperature of 43.3°F (6.3°C).Humidity
The most humid month in Johnson is December, with an average relative humidity of 82%.Rainfall
In Johnson, in December, it is raining for 13.1 days, with typically 3.74" (95mm) of accumulated precipitation. In Johnson, during the entire year, the rain falls for 166.2 days and collects up to 34.88" (886mm) of precipitation.Snowfall
January through March and December are months with snowfall in Johnson, Mississippi. December is the month with the most snowfall. Snow falls for 0.5 days and accumulates 0.35" (9mm) of snow.Daylight
With an average of 10h and 6min of daylight, December has the shortest days of the year in Johnson.On the first day of December, sunrise is at 6:38 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 6:55 am and sunset at 5:03 pm CST.
Sunshine
February and December, with an average of 4.9h of sunshine, are months with the least sunshine in Johnson.UV index
The months with the lowest UV index in Johnson 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 exposure to the Sun's UV rays for ordinary individuals.Note: In December, the average maximum UV index of 3 translates into the following recommendations:
Act with care - The need to guard against sun damage is communicated. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Johnson, MS
- Average high temperature in December: 59.4°F
The warmest month (with the highest average high temperature) is August (91.6°F).
The month with the lowest average high temperature is January (56.7°F).
- Average low temperature in December: 43.3°F
The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (39.6°F).
Average pressure in December
Johnson, 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
Johnson, MS
- Average wind speed in December: 6.7mph
The windiest months (with the highest average wind speed) are January, February and April (7mph).
The calmest month (with the lowest average wind speed) is July (4.5mph).
Average humidity in December
Johnson, MS
- Average humidity in December: 82%
The month with the highest relative humidity is December (82%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Johnson, MS
- Average rainfall in December: 3.74"
The wettest month (with the highest rainfall) is July (4.13").
The driest month (with the least rainfall) is November (1.77").
Average rainfall days in December
Johnson, MS
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.6 days).
Average snowfall in December
Johnson, MS
- Average snowfall in December: 0.35"
The month with the highest snowfall is December (0.35").
The months with the least snowfall are April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Johnson, MS
- Average snowfall days in December: 0.5 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 and November (0 days).
Average daylight in December /
Average sunshine in December
Johnson, 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 54min
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 54min).
Average sunshine days in December
Johnson, MS
- Average sunshine days in December: 16.4 days
The month with the most sunshine days is October (20.6 days).
The month with the least sunshine days is August (7.3 days).
Average UV index in December
Johnson, 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
Johnson, MS
- Average cloud cover in December: 49
The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 30).
Average visibility in December
Johnson, MS
- Average visibility in December: 5mi
The months with the highest visibility are January, February, October and November (6mi).
The months with the lowest visibility are March, April, May, June, July, August, September and December (5mi).
