December weather forecast
Whetstone, MD

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Weather in December

December, the first month of the winter in Whetstone, is still a chilly month, with an average temperature ranging between min 32.2°F (0.1°C) and max 44.2°F (6.8°C).

Temperature

The onset of December aligns with a soft reduction in the average high-temperature, gently falling from a fresh 53.1°F (11.7°C) in November to a frosty 44.2°F (6.8°C). An average nighttime temperature of 32.2°F (0.1°C) is witnessed throughout December.

Humidity

May, October and December, with an average relative humidity of 77%, are the most humid months in Whetstone.

Rainfall

In Whetstone, in December, it is raining for 10.5 days, with typically 2.09" (53mm) of accumulated precipitation. Throughout the year, there are 154.8 rainfall days, and 29.09" (739mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Whetstone, Maryland, are January through May, November and December. In Whetstone, in December, during 2.5 snowfall days, 1.38" (35mm) of snow is typically accumulated. In Whetstone, during the entire year, snow falls for 16.7 days and aggregates up to 9.76" (248mm) of snow.

Daylight

December has the shortest days of the year in Whetstone, with an average of 9h and 30min of daylight.
On the first day of December in Whetstone, sunrise is at 7:09 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:56 pm EST.

Sunshine

January, February and December, with an average of 5.1h of sunshine, are months with the least sunshine in Whetstone.

UV index

The months with the lowest UV index in Whetstone 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 unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 2 in December translates into this advice:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Be aware! The intensity of the Sun's UV radiation can be amplified nearly twice due to snow reflection.
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Frequently asked questions

How cold is it in Whetstone in December?

In December, in Whetstone, the average high-temperature is 44.2°F (6.8°C), and the average low-temperature is 32.2°F (0.1°C). The average heat index (a.k.a. 'apparent temperature', 'feels like'), which combines relative humidity and air temperature, in August is evaluated at 93.2°F (34°C).

What is the most humid month in Whetstone?

The months with the highest humidity in Whetstone are May, October and December, with an average relative humidity of 77%.

What is the average humidity in December in Whetstone?

The average relative humidity in December is 77%.

How much does it rain in Whetstone in December?

In Whetstone, in December, during 10.5 rainfall days, 2.09" (53mm) of precipitation is typically accumulated.

How much does it snow in Whetstone in December?

In December, it is snowing for 2.5 days. Throughout December, 1.38" (35mm) of snow is accumulated.

What is the month with the shortest days in Whetstone?

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

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

The average day length in December is 9h and 28min.

When are sunrise and sunset in December in Whetstone?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:46 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:56 pm EST.

What are the months with the least sunshine in Whetstone?

The months with the least sunshine in Whetstone, Maryland, are January, February and December, with an average of 5.1h of sunshine.

How many hours of sunshine does Whetstone have in December?

In Whetstone, the average sunshine duration in December is 5.1h.

What are the months with the lowest UV index in Whetstone?

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

What is the UV index reading in December in Whetstone?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health risk from 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
Whetstone, MD

Average temperature in December - Whetstone, MD
  • Average high temperature in December: 44.2°F

The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.8°F).

  • Average low temperature in December: 32.2°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 (25.2°F).

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Average pressure in December
Whetstone, MD

Average pressure in December - Whetstone, 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 (29.95"Hg).

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Average wind speed in December
Whetstone, MD

Average wind speed in December - Whetstone, MD
  • Average wind speed in December: 7.1mph

The windiest month (with the highest average wind speed) is March (8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).

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Average humidity in December
Whetstone, MD

Average humidity in December - Whetstone, MD
  • Average humidity in December: 77%

The months with the highest relative humidity are May, October and December (77%).
The month with the lowest relative humidity is July (72%).

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Average rainfall in December
Whetstone, MD

Average rainfall in December - Whetstone, MD
  • Average rainfall in December: 2.09"

The wettest month (with the highest rainfall) is August (3.82").
The driest month (with the least rainfall) is January (1.73").

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Average rainfall days in December
Whetstone, MD

Average rainfall days in December - Whetstone, MD
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (17.4 days).
The month with the least rainy days is January (8.7 days).

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Average snowfall in December
Whetstone, MD

Average snowfall in December - Whetstone, MD
  • Average snowfall in December: 1.38"

The month with the highest snowfall is January (2.76").
The months with the least snowfall are June, July, August, September and October (0").

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Average snowfall days in December
Whetstone, MD

Average snowfall days in December - Whetstone, MD
  • Average snowfall days in December: 2.5 days

The month with the highest number of snowfall days is February (5.3 days).
The months with the least snowfall days are June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Whetstone, MD

Average daylight in December / Average sunshine in December - Whetstone, 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 48min).
The months with the least sunshine are January, February and December (Average sunshine: 5h and 6min).

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Average sunshine days in December
Whetstone, MD

Average sunshine days in December - Whetstone, MD
  • Average sunshine days in December: 18.4 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (11.5 days).

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Average UV index in December
Whetstone, MD

Average UV index in December - Whetstone, 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).

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Average cloud cover in December
Whetstone, MD

Average cloud cover in December - Whetstone, 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 30).

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Average visibility in December
Whetstone, MD

Average visibility in December - Whetstone, 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).

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Whetstone, Maryland, USA

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