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
As November makes way for December, Perryman's average high-temperature eases from a fresh 53.1°F (11.7°C) to a frosty 44.4°F (6.9°C). The average nighttime temperature lowers to an icy 33.1°F (0.6°C) throughout December.Humidity
The average relative humidity in December in Perryman, Maryland, is 77%.Rainfall
In Perryman, Maryland, during December, the rain falls for 9.5 days and regularly aggregates up to 2.44" (62mm) of precipitation. Throughout the year, there are 153 rainfall days, and 30.39" (772mm) of precipitation is accumulated.Snowfall
January through March, May, November and December are months with snowfall. In Perryman, in December, during 1.8 snowfall days, 0.87" (22mm) of snow is typically accumulated. In Perryman, Maryland, during the entire year, snow falls for 12.7 days and aggregates up to 6.85" (174mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:06 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:24 am and sunset at 4:51 pm EST.
Sunshine
In December, the average sunshine is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Perryman. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, the maximum UV index of 2 translates into these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. Safeguard your eyes, ears, and face from sun rays with the aid of a wide-brim hat. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
Is it cold in Perryman during December?
What is the average humidity in December in Perryman?
How many days does it rain in December in Perryman?
How much does it snow in Perryman in December?
What is the month with the shortest days in Perryman?
How many hours of daylight does Perryman have in December?
When is the sunrise / sunset in December in Perryman?
How long on average sun shines in December in Perryman?
What are the months with the lowest UV index in Perryman?
What is the UV index intensity in December in Perryman?
Average temperature in December
Perryman, MD
- Average high temperature in December: 44.4°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 (38.3°F).
- Average low temperature in December: 33.1°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 (26.6°F).
Average pressure in December
Perryman, MD
- Average pressure in December: 30.1"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
Perryman, MD
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest month (with the lowest average wind speed) is August (5.4mph).
Average humidity in December
Perryman, MD
- Average humidity in December: 77%
The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are March, April and November (74%).
Average rainfall in December
Perryman, MD
- Average rainfall in December: 2.44"
The wettest month (with the highest rainfall) is August (4.09").
The driest month (with the least rainfall) is January (1.85").
Average rainfall days in December
Perryman, MD
- Average rainfall days in December: 9.5 days
The month with the highest number of rainy days is May (17.7 days).
The month with the least rainy days is January (7.5 days).
Average snowfall in December
Perryman, MD
- Average snowfall in December: 0.87"
The month with the highest snowfall is January (2.17").
The months with the least snowfall are April, June, July, August, September and October (0").
Average snowfall days in December
Perryman, MD
- Average snowfall days in December: 1.8 days
The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are April, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Perryman, 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 1min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is February (Average sunshine: 4h and 54min).
Average sunshine days in December
Perryman, MD
- Average sunshine days in December: 19.3 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is May (10.9 days).
Average UV index in December
Perryman, 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
Perryman, MD
- Average cloud cover in December: 45
The month with the most cloud cover is March (Cloud cover 46).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Perryman, 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).
Perryman, Maryland, USA
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