December weather forecastSecretary, MD
December
Weather in December
December, the first month of the winter in Secretary, is also a frosty month, with temperature in the range of an average high of 47.1°F (8.4°C) and an average low of 36.3°F (2.4°C).Temperature
Secretary experiences a moderate temperature shift at the start of December, with average high-temperatures adjusting a bit from a fresh 54.9°F (12.7°C) in November to a frosty 47.1°F (8.4°C). In Secretary, an average low-temperature of 36.3°F (2.4°C) is recorded during December nights.Humidity
In Secretary, the average relative humidity in December is 76%.Rainfall
In Secretary, during December, the rain falls for 10.8 days and regularly aggregates up to 2.72" (69mm) of precipitation. In Secretary, during the entire year, the rain falls for 160.2 days and collects up to 31.89" (810mm) of precipitation.Snowfall
January through April, November and December are months with snowfall. In Secretary, during December, snow falls for 2.3 days and regularly aggregates up to 1.1" (28mm) of snow. Throughout the year, in Secretary, there are 11.2 snowfall days, and 4.65" (118mm) of snow is accumulated.Daylight
With an average of 9h and 30min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:03 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:21 am and sunset at 4:52 pm EST.
Sunshine
February and December, with an average of 5.2h of sunshine, are months with the least sunshine.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for ordinary individuals.Note: A daily high UV index of 2 in December leads to these guidelines:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Secretary, MD
- Average high temperature in December: 47.1°F
The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.8°F).
- Average low temperature in December: 36.3°F
The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.8°F).
Average pressure in December
Secretary, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Secretary, MD
- Average wind speed in December: 8.8mph
The windiest months (with the highest average wind speed) are February and March (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.2mph).
Average humidity in December
Secretary, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).
Average rainfall in December
Secretary, MD
- Average rainfall in December: 2.72"
The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is January (2.01").
Average rainfall days in December
Secretary, MD
- Average rainfall days in December: 10.8 days
The month with the highest number of rainy days is July (17.5 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Secretary, MD
- Average snowfall in December: 1.1"
The month with the highest snowfall is January (1.61").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Secretary, MD
- Average snowfall days in December: 2.3 days
The month with the highest number of snowfall days is January (3.5 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
Secretary, MD
- Average daylight in December: 9h and 30min
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 12min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The months with the least sunshine are February and December (Average sunshine: 5h and 12min).
Average sunshine days in December
Secretary, MD
- Average sunshine days in December: 17.6 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
Secretary, 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
Secretary, MD
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Secretary, 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).
