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
The shift to December brings a decrease in the average high-temperature, falling from a cool 52.9°F (11.6°C) in November to a frosty 43.7°F (6.5°C). In Pleasant Hills, the December nights cool down to an average low of 32.2°F (0.1°C).Humidity
The average relative humidity in December is 78%.Rainfall
In Pleasant Hills, in December, during 9.8 rainfall days, 2.76" (70mm) of precipitation is typically accumulated. In Pleasant Hills, Maryland, during the entire year, the rain falls for 155.7 days and collects up to 32.64" (829mm) of precipitation.Snowfall
Months with snowfall in Pleasant Hills are January through May, November and December. In Pleasant Hills, during December, snow falls for 3.4 days and regularly aggregates up to 1.38" (35mm) of snow. Throughout the year, there are 19.9 snowfall days, and 9.72" (247mm) of snow is accumulated.Daylight
December has the shortest days of the year in Pleasant Hills, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:52 pm EST.
Sunshine
In December, the average sunshine in Pleasant Hills, Maryland, is 5h.UV index
January, February, November 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 low health risk from unsafe exposure to UV radiation for ordinary individuals.Note: The maximum daily UV index, 2 in December, converts into the following recommendations:
Many can withstand an hour in the sun without burning, yet children must always have protection against sunlight. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. For holistic sun protection encompassing the eyes, ears, face, and neck, a wide-brim hat is key. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Frequently asked questions
Is it cold in Pleasant Hills during December?
What is the average humidity in December in Pleasant Hills?
How much does it rain in Pleasant Hills in December?
How much does it snow in Pleasant Hills in December?
What is the month with the shortest days in Pleasant Hills?
How many hours of daylight does Pleasant Hills have in December?
What time are sunrise and sunset in December in Pleasant Hills?
How long on average sun shines in December in Pleasant Hills?
What are the months with the lowest UV index in Pleasant Hills?
What is the UV index reading in December in Pleasant Hills?
Average temperature in December
Pleasant Hills, MD
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (37.6°F).
- Average low temperature in December: 32.2°F
The month with the highest average low temperature is July (67.6°F).
The coldest month (with the lowest average low temperature) is January (25.3°F).
Average pressure in December
Pleasant Hills, 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
Pleasant Hills, MD
- Average wind speed in December: 8.3mph
The windiest month (with the highest average wind speed) is March (9.1mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Pleasant Hills, MD
- Average humidity in December: 78%
The month with the highest relative humidity is May (80%).
The month with the lowest relative humidity is April (74%).
Average rainfall in December
Pleasant Hills, MD
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is February (2.09").
Average rainfall days in December
Pleasant Hills, MD
- Average rainfall days in December: 9.8 days
The month with the highest number of rainy days is May (17.1 days).
The month with the least rainy days is January (8.3 days).
Average snowfall in December
Pleasant Hills, MD
- Average snowfall in December: 1.38"
The month with the highest snowfall is March (2.87").
The months with the least snowfall are June, July, August, September and October (0").
Average snowfall days in December
Pleasant Hills, MD
- Average snowfall days in December: 3.4 days
The months with the highest number of snowfall days are January and February (5.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Pleasant Hills, MD
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 0min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).
Average sunshine days in December
Pleasant Hills, MD
- Average sunshine days in December: 17.8 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is May (11.7 days).
Average UV index in December
Pleasant Hills, 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, November and December (UV index 2).
Average cloud cover in December
Pleasant Hills, MD
- Average cloud cover in December: 46
The month with the most cloud cover is March (Cloud cover 48).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Pleasant Hills, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Pleasant Hills, Maryland, USA
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