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
December brings a slight decrease in the average high-temperature, shifting from a refreshing 55.6°F (13.1°C) in November to a chilly 48.4°F (9.1°C). Showell's nights in December cool down to an average low-temperature of 39.2°F (4°C).Humidity
In December, the average relative humidity in Showell is 76%.Rainfall
In Showell, in December, it is raining for 10.4 days, with typically 1.26" (32mm) of accumulated precipitation. Throughout the year, there are 139.3 rainfall days, and 16.85" (428mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall. In Showell, in December, snow falls for 2 days, with typically accumulated 0.24" (6mm) of snow. Throughout the year, there are 8.6 snowfall days, and 1.34" (34mm) of snow is accumulated.Daylight
December has the shortest days of the year in Showell, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 6:59 am and sunset at 4:40 pm. On the last day of December, sunrise is at 7:17 am and sunset at 4:50 pm EST.
Sunshine
In Showell, the average sunshine in December is 5.4h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Although the majority can endure up to an hour in the sun without burns, children always require sun protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Frequently asked questions
What are December temperatures in Showell?
What is the average humidity in December in Showell?
How much does it rain in Showell in December?
How much does it snow in Showell in December?
What is the month with the shortest days in Showell?
How many hours of daylight does Showell have in December?
When is the sunrise / sunset in December in Showell?
How long on average sun shines in December in Showell?
When is the lowest UV index in Showell?
What is the UV index reading in December in Showell?
Average temperature in December
Showell, MD
- Average high temperature in December: 48.4°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (42.4°F).
- Average low temperature in December: 39.2°F
The month with the highest average low temperature is July (73°F).
The coldest month (with the lowest average low temperature) is January (32.5°F).
Average pressure in December
Showell, MD
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Showell, MD
- Average wind speed in December: 11.4mph
The windiest month (with the highest average wind speed) is January (12.1mph).
The calmest month (with the lowest average wind speed) is August (8.1mph).
Average humidity in December
Showell, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (81%).
The months with the lowest relative humidity are January and November (74%).
Average rainfall in December
Showell, MD
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is July (2.05").
The driest month (with the least rainfall) is January (1.06").
Average rainfall days in December
Showell, MD
- Average rainfall days in December: 10.4 days
The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is January (8.1 days).
Average snowfall in December
Showell, MD
- Average snowfall in December: 0.24"
The month with the highest snowfall is January (0.43").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Showell, MD
- Average snowfall days in December: 2 days
The month with the highest number of snowfall days is January (2.9 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
Showell, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 2min
The month with the most sunshine is July (Average sunshine: 11h and 6min).
The month with the least sunshine is February (Average sunshine: 5h and 18min).
Average sunshine days in December
Showell, MD
- Average sunshine days in December: 17.4 days
The month with the most sunshine days is January (18.9 days).
The month with the least sunshine days is July (12.4 days).
Average UV index in December
Showell, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).
Average cloud cover in December
Showell, MD
- Average cloud cover in December: 42
The month with the most cloud cover is March (Cloud cover 44).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Showell, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Showell, Maryland, USA
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