December weather forecast
Raynor Heights, MD

Weather in December

December, the first month of the winter in Raynor Heights, is still a chilly month, with an average temperature ranging between max 45.5°F (7.5°C) and min 34.2°F (1.2°C).

Temperature

In Raynor Heights, the average high-temperature in December marginally drops from a fresh 53.4°F (11.9°C) in November to a frosty 45.5°F (7.5°C). In December, the average low-temperature is 34.2°F (1.2°C).

Humidity

In Raynor Heights, Maryland, the average relative humidity in December is 76%.

Rainfall

In December, in Raynor Heights, Maryland, the rain falls for 10.1 days. Throughout December, 2.28" (58mm) of precipitation is accumulated. In Raynor Heights, during the entire year, the rain falls for 156.3 days and collects up to 29.61" (752mm) of precipitation.

Snowfall

Months with snowfall are January through March, November and December. 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

With an average of 9h and 28min of daylight, December has the shortest days of the year.
On the first day of December in Raynor Heights, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:25 am and sunset at 4:53 pm EST.

Sunshine

In Raynor Heights, the average sunshine in December 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 hazard from unsafe exposure to UV radiation for ordinary individuals.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
[Resources]

FAQ

What is the temperature in December in Raynor Heights?

The average high-temperature, in December, is 45.5°F (7.5°C), while the average low-temperature is 34.2°F (1.2°C). The average heat index (a.k.a. 'felt air temperature', 'real feel'), which calculates the temperature value influenced by the moisture in the air, in August is evaluated at 91.4°F (33°C).

What is the average humidity in December in Raynor Heights?

In Raynor Heights, the average relative humidity in December is 76%.

How many days does it rain in December in Raynor Heights?

In December, in Raynor Heights, the rain falls for 10.1 days. Throughout December, 2.28" (58mm) of precipitation is accumulated.

How many days does it snow in December in Raynor Heights?

In Raynor Heights, in December, during 2.2 snowfall days, 0.79" (20mm) of snow is typically accumulated.

What is the month with the shortest days in Raynor Heights?

The month with the shortest days is December, with an average of 9h and 28min of daylight.

How many hours of daylight does Raynor Heights have in December?

In Raynor Heights, the average day length in December is 9h and 28min.

What time are sunrise and sunset in December in Raynor Heights?

In December, on the first day of the month, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of the month, in Raynor Heights, Maryland, sunrise is at 7:25 am and sunset at 4:53 pm EST.

How many hours of sunshine does Raynor Heights have in December?

In December, the average sunshine duration is 5.2h.

What is the month with the lowest UV index in Raynor Heights?

The months with the lowest UV index in Raynor Heights are January, February, November and December, with an average maximum UV index of 2.

What is the UV index intensity in December in Raynor Heights?

The average daily maximum UV index in December in Raynor Heights is 2. A UV Index estimate of 2, and below, represents a low health risk from unsafe exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Raynor Heights, MD

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).

[Resources]

Average pressure in December
Raynor Heights, MD

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).

[Resources]

Average wind speed in December
Raynor Heights, MD

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).

[Resources]

Average humidity in December
Raynor Heights, MD

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%).

[Resources]

Average rainfall in December
Raynor Heights, MD

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").

[Resources]

Average rainfall days in December
Raynor Heights, MD

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).

[Resources]

Average snowfall in December
Raynor Heights, MD

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").

[Resources]

Average snowfall days in December
Raynor Heights, MD

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).

[Resources]

Average daylight in December /
Average sunshine in December
Raynor Heights, MD

Average daylight in December / Average sunshine in December - Raynor Heights, MD
  • Average daylight in December: 9h and 28min

The month with the longest days is June (Average daylight: 14h and 53min).
The month with the shortest days is December (Average daylight: 9h and 28min).

  • Average sunshine in December: 5h and 12min

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).

[Resources]

Average sunshine days in December
Raynor Heights, MD

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).

[Resources]

Average UV index in December
Raynor Heights, MD

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).

[Resources]

Average cloud cover in December
Raynor Heights, MD

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).

[Resources]

Average visibility in December
Raynor Heights, MD

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).

[Resources]

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location