December weather forecast and climate
Maryland, NY

December, the first month of the winter, in Maryland, is still a cold month, with average temperature varying between 22.5°F (-5.3°C) and 32.9°F (0.5°C).

Temperature

In December, the average high-temperature drops, from a cold 42.4°F (5.8°C) in November, to a still wintry 32.9°F (0.5°C). The average low-temperature, in Maryland, New York, is 22.5°F (-5.3°C).

Humidity

January, February and December, with an average relative humidity of 87%, are most humid months.

Rainfall

In Maryland, in December, during 10.3 rainfall days, 2.4" (61mm) of precipitation is typically accumulated. In Maryland, during the entire year, the rain falls for 161.1 days and collects up to 31.18" (792mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In Maryland, New York, during December, snow falls for 16.7 days and regularly aggregates up to 8.35" (212mm) of snow. Throughout the year, there are 92.9 snowfall days, and 48.23" (1225mm) of snow is accumulated.

Daylight

With an average of 9.1h of daylight, December has the shortest days of the year.

Sunshine

In Maryland, the average sunshine in December is 2.8h.

UV index

January through March, November and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a minimal health hazard from the exposure to the Sun's UV radiation for average individuals.
Note: The daily maximum UV index of 1 in December interpret into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.

What is the temperature in December in Maryland?

In Maryland, in December, the average high-temperature is 32.9°F (0.5°C), and the average low-temperature is 22.5°F (-5.3°C).

What is the most humid month in Maryland?

Months with the highest humidity in Maryland are January, February and December, with an average relative humidity of 87%.

What is the average humidity in December in Maryland?

In December, the average relative humidity in Maryland is 87%.

How much does it rain in Maryland in December?

In Maryland, in December, it is raining for 10.3 days, with typically 2.4" (61mm) of accumulated precipitation.

How many days does it snow in December in Maryland?

In Maryland, in December, during 16.7 snowfall days, 8.35" (212mm) of snow is typically accumulated.

What is the month with the shortest days in Maryland?

The month with the shortest days in Maryland is December, with an average of 9.1h of daylight.

What is the average length of the day in December in Maryland?

In Maryland, New York, the average length of the day in December is 9.1h.

How long on average sun shines in December in Maryland?

In December, the average sunshine is 2.8h.

When is the lowest UV index in Maryland?

Months with the lowest UV index in Maryland are January through March, November and December, with an average maximum UV index of 1.

What is the UV index reading in December in Maryland?

The average daily maximum UV index in December in Maryland is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from the exposure to the Sun's UV radiation.
Average temperature in December - Maryland, NY
  • Average high temperature in December: 0.5°C

The warmest month (with the highest average high temperature) is July (25.3°C).
The month with the lowest average high temperature is January (-2.8°C).

  • Average low temperature in December: -5.3°C

The month with the highest average low temperature is July (13.3°C).
The coldest month (with the lowest average low temperature) is January (-9.4°C).

Average pressure in December - Maryland, NY
  • Average pressure in December: 1018.2mbar

The month with the highest atmospheric pressure is November (1019.3mbar).
The month with the lowest atmospheric pressure is June (1013.5mbar).

Average wind speed in December - Maryland, NY
  • Average wind speed in December: 15km/h

The windiest month (with the highest average wind speed) is January (15.7km/h).
The calmest month (with the lowest average wind speed) is August (9.3km/h).

Average humidity in December - Maryland, NY
  • Average humidity in December: 87%

Months with the highest relative humidity are January, February and December (87%).
Months with the lowest relative humidity are April and May (79%).

Average rainfall in December - Maryland, NY
  • Average rainfall in December: 61mm

The wettest month (with the highest rainfall) is August (80mm).
The driest month (with the least rainfall) is September (50mm).

Average rainfall days in December - Maryland, NY
  • Average rainfall days in December: 10.3 days

The month with the highest number of rainy days is July (18.3 days).
The month with the least rainy days is February (6.6 days).

Average snowfall in December - Maryland, NY
  • Average snowfall in December: 212mm

The month with the highest snowfall is February (232mm).
Months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in December - Maryland, NY
  • Average snowfall days in December: 16.7 days

The month with the highest number of snowfall days is January (20.6 days).
Months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December / Average sunshine in December - Maryland, NY
  • Average daylight in December: 9.1h

The month with the longest days is June (Average daylight: 15.3h).
The month with the shortest days is December (Average daylight: 9.1h).

  • Average sunshine in December: 2.8h

The month with the most sunshine is July (Average sunshine: 9.8h).
The month with the least sunshine is February (Average sunshine: 2.6h).

Average sunshine days in December - Maryland, NY
  • Average sunshine days in December: 7.9 days

The month with the most sunshine days is September (14.6 days).
The month with the least sunshine days is February (5.5 days).

Average UV index in December - Maryland, NY
  • Average UV index in December: 1

Months with the highest UV index are May, June, July and August (UV index 5).
Months with the lowest UV index are January, February, March, November and December (UV index 1).

Average cloud cover in December - Maryland, NY
  • Average cloud cover in December: 73

The month with the most cloud cover is February (Cloud cover 75).
Months with the least cloud cover are July and August (Cloud cover 41).

Average visibility in December - Maryland, NY
  • Average visibility in December: 8km

Months with the highest visibility are March, April, May, June, July, August, September, October, November and December (8km).
Months with the lowest visibility are January and February (7km).