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's onset corresponds with a subtle shift in the average high-temperature, slightly moving from a cool 53.4°F (11.9°C) in November to a frosty 45.5°F (7.5°C). During December, the nighttime temperature averages to a wintry 34.2°F (1.2°C).Humidity
In Raynor Heights, the average relative humidity in December is 76%.Rainfall
In Raynor Heights, Maryland, during December, the rain falls for 10.1 days and regularly aggregates up to 2.28" (58mm) of precipitation. Throughout the year, in Raynor Heights, there are 156.3 rainfall days, and 29.61" (752mm) of precipitation is accumulated.Snowfall
January through March, November and December are months with snowfall in Raynor Heights. In Raynor Heights, during December, snow falls for 2.2 days and regularly aggregates up to 0.79" (20mm) of snow. In Raynor Heights, during the entire year, snow falls for 12.8 days and aggregates up to 6.77" (172mm) 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 December, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:53 pm EST.
Sunshine
The average sunshine in December in Raynor Heights, Maryland, is 5.2h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: A typical high UV index of 2 in December suggests the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. UV radiation from the Sun is most dangerous during midday; take precautions and seek shade. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
What is the average December temperature in Raynor Heights?
What is the average humidity in December in Raynor Heights?
How much does it rain in Raynor Heights in December?
How much does it snow in Raynor Heights in December?
What is the month with the shortest days in Raynor Heights?
How many hours of daylight does Raynor Heights have in December?
When are sunrise and sunset in December in Raynor Heights?
How long on average sun shines in December in Raynor Heights?
What is the month with the lowest UV index in Raynor Heights?
How high is the UV index in December in Raynor Heights?
Average temperature in December
Raynor Heights, MD
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in December
Raynor Heights, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Raynor Heights, MD
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Raynor Heights, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in December
Raynor Heights, MD
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in December
Raynor Heights, MD
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Raynor Heights, MD
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Raynor Heights, MD
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (3.9 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
Raynor Heights, MD
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Raynor Heights, MD
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Raynor Heights, 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
Raynor Heights, 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 29).
Average visibility in December
Raynor Heights, 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).
Raynor Heights, Maryland, USA
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