December weather forecastWye Harbor, MD

December

Weather in December

The first month of the winter, December, is also a frosty month in Wye Harbor, Maryland, with an average temperature ranging between min 36.3°F (2.4°C) and max 46.2°F (7.9°C).

Temperature

In Wye Harbor, the average high-temperature in December gently drops from a cool 54.5°F (12.5°C) in November to a frosty 46.2°F (7.9°C). December is noted for a mean low-temperature of 36.3°F (2.4°C).

Humidity

In Wye Harbor, the average relative humidity in December is 76%.

Rainfall

In Wye Harbor, in December, it is raining for 11.4 days, with typically 2.91" (74mm) of accumulated precipitation. In Wye Harbor, during the entire year, the rain falls for 159 days and collects up to 32.36" (822mm) of precipitation.

Snowfall

January through April, November and December are months with snowfall. In December, it is snowing for 1.7 days. Throughout December, 0.31" (8mm) of snow is accumulated. In Wye Harbor, during the entire year, snow falls for 11.4 days and aggregates up to 4.13" (105mm) of snow.

Daylight

With an average of 9h and 30min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:05 am and sunset at 4:42 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:52 pm EST.

Sunshine

The average sunshine in December is 5.2h.

UV index

January and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.
Note: In December, the UV index of 2 transforms into the following advice:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. It's recommended to limit sun exposure when its radiation is at its peak during midday. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Updated: Jul 17, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

During December, Wye Harbor experiences an average high-temperature of 46.2°F (7.9°C) and a low-temperature of 36.3°F (2.4°C). The average heat index (a.k.a. 'apparent temperature', 'real feel'), which takes the relative humidity and factors it into the air temperature reading, in August is appraised at 89.6°F (32°C).

The average relative humidity in December is 76%.

In Wye Harbor, Maryland, in December, it is raining for 11.4 days, with typically 2.91" (74mm) of accumulated precipitation.

In December, it is snowing for 1.7 days. Throughout December, 0.31" (8mm) of snow is accumulated.

December has the shortest days of the year, with an average of 9h and 30min of daylight.

In Wye Harbor, the average day length in December is 9h and 29min.

In December, on the first day of the month, sunrise is at 7:05 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:23 am and sunset at 4:52 pm EST.

The average sunshine duration in December is 5.2h.

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

In December, the average daily maximum UV index is 2. A UV Index of 2, and less, symbolizes a low health threat from unprotected exposure to UV radiation.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Wye Harbor, MD

  • Average high temperature in December: 46.2°F

The warmest month (with the highest average high temperature) is July (84.4°F).
The month with the lowest average high temperature is January (40.1°F).

  • Average low temperature in December: 36.3°F

The month with the highest average low temperature is July (71.2°F).
The coldest month (with the lowest average low temperature) is January (29.5°F).

Average pressure in December
Wye Harbor, 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
Wye Harbor, MD

  • Average wind speed in December: 9.2mph

The windiest months (with the highest average wind speed) are February and March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).

Average humidity in December
Wye Harbor, MD

  • Average humidity in December: 76%

The month with the highest relative humidity is May (79%).
The months with the lowest relative humidity are January and November (73%).

Average rainfall in December
Wye Harbor, MD

  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is July (3.31").
The driest month (with the least rainfall) is September (1.89").

Average rainfall days in December
Wye Harbor, MD

  • Average rainfall days in December: 11.4 days

The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is November (8.8 days).

Average snowfall in December
Wye Harbor, MD

  • Average snowfall in December: 0.31"

The month with the highest snowfall is January (1.42").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Wye Harbor, MD

  • Average snowfall days in December: 1.7 days

The month with the highest number of snowfall days is January (4.2 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).

Average daylight in December /
Average sunshine in December
Wye Harbor, MD

  • Average daylight in December: 9h and 30min

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 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 0min).

Average sunshine days in December
Wye Harbor, MD

  • Average sunshine days in December: 17.4 days

The month with the most sunshine days is November (19.4 days).
The month with the least sunshine days is May (11.1 days).

Average UV index in December
Wye Harbor, 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 and December (UV index 2).

Average cloud cover in December
Wye Harbor, MD

  • Average cloud cover in December: 45

The months with the most cloud cover are February, March and December (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 28).

Average visibility in December
Wye Harbor, 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).