December weather forecastPatuxent Palisades, MD
December
Weather in December
The first month of the winter, December, is also a frosty month in Patuxent Palisades, Maryland, with an average temperature varying between 36.5°F (2.5°C) and 46.4°F (8°C).Temperature
December's arrival coincides with a soft drop in the average high-temperature, subtly decreasing from November's cool 54.5°F (12.5°C) to a frosty 46.4°F (8°C). Throughout the month of December, Patuxent Palisades expects an average low of 36.5°F (2.5°C).Humidity
In Patuxent Palisades, the average relative humidity in December is 75%.Rainfall
In December, the rain falls for 7.5 days. Throughout December, 0.67" (17mm) of precipitation is accumulated. In Patuxent Palisades, during the entire year, the rain falls for 127.2 days and collects up to 11.85" (301mm) of precipitation.Snowfall
Months with snowfall are January through March, November and December. In Patuxent Palisades, in December, during 1.4 snowfall days, 0.16" (4mm) of snow is typically accumulated. In Patuxent Palisades, during the entire year, snow falls for 8 days and aggregates up to 1.22" (31mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:45 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:55 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 hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. It's crucial to reduce time in the direct Sun around mid-day due to the intense solar radiation. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Patuxent Palisades, MD
- Average high temperature in December: 46.4°F
The warmest month (with the highest average high temperature) is July (84.7°F).
The month with the lowest average high temperature is January (40.5°F).
- Average low temperature in December: 36.5°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 (30°F).
Average pressure in December
Patuxent Palisades, 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
Patuxent Palisades, MD
- Average wind speed in December: 8.9mph
The windiest month (with the highest average wind speed) is March (9.8mph).
The calmest month (with the lowest average wind speed) is July (6.4mph).
Average humidity in December
Patuxent Palisades, MD
- Average humidity in December: 75%
The month with the highest relative humidity is May (78%).
The months with the lowest relative humidity are January and November (72%).
Average rainfall in December
Patuxent Palisades, MD
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is August (1.93").
The driest month (with the least rainfall) is January (0.51").
Average rainfall days in December
Patuxent Palisades, MD
- Average rainfall days in December: 7.5 days
The month with the highest number of rainy days is August (15.6 days).
The month with the least rainy days is November (5.9 days).
Average snowfall in December
Patuxent Palisades, MD
- Average snowfall in December: 0.16"
The month with the highest snowfall is January (0.55").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Patuxent Palisades, MD
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (2.6 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Patuxent Palisades, 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
Patuxent Palisades, MD
- Average sunshine days in December: 21 days
The month with the most sunshine days is November (22.6 days).
The month with the least sunshine days is August (12.5 days).
Average UV index in December
Patuxent Palisades, 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
Patuxent Palisades, MD
- Average cloud cover in December: 43
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Patuxent Palisades, 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).
