December weather forecast
Raynor Heights, MD

Share

Weather in December

December, the first month of the winter in Raynor Heights, is also a frosty month, with an average temperature fluctuating between 34.2°F (1.2°C) and 45.5°F (7.5°C).

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from a cool 53.4°F (11.9°C) in November to a frosty 45.5°F (7.5°C). An average low-temperature of 34.2°F (1.2°C) marks the nights throughout December.

Humidity

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

Rainfall

In Raynor Heights, during December, the rain falls for 10.1 days and regularly aggregates up to 2.28" (58mm) of precipitation. 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, in December, during 2.2 snowfall days, 0.79" (20mm) of snow is typically accumulated. Throughout the year, there are 12.8 snowfall days, and 6.77" (172mm) of snow is accumulated.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
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 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 of 2, and less, symbolizes a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily UV index of 2 turns into the following recommendations:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. Direct Sun exposure should be minimized especially during midday when radiation is most intense. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.

Frequently asked questions

What is the usual temperature for Raynor Heights in December?

In Raynor Heights, in December, the average high-temperature is 45.5°F (7.5°C), and the average low-temperature is 34.2°F (1.2°C). In August, the average heat index (a.k.a. 'feels like', 'real feel'), which combines relative humidity and air temperature, is computed to be 91.4°F (33°C).

What is the average humidity in December?

In December, the average relative humidity is 76%.

How much does it rain in December?

In Raynor Heights, in December, it is raining for 10.1 days, with typically 2.28" (58mm) of accumulated precipitation.

How much does it snow in December?

In December, it is snowing for 2.2 days. Throughout December, 0.79" (20mm) of snow is accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 30min of daylight.

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

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.

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

The average sunshine duration in December is 5.2h.

When is the lowest UV index?

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

What is the UV index reading in December?

In December, the average daily maximum UV index is 2. A UV Index estimate of 2, and below, represents a minimal hazard to health from exposure to the Sun's UV radiation.
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).

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).

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).

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%).

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").

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).

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").

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).

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 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 - 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 - 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 - 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 - 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

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location