December weather forecast
Medway, MA

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Weather in December

The first month of the winter, December, is also a wintry month in Medway, Massachusetts, with an average temperature fluctuating between 39.6°F (4.2°C) and 28.6°F (-1.9°C).

Temperature

December weather is marked by a drop in the average high-temperature, falling from a chilly 49.5°F (9.7°C) in November to a wintry 39.6°F (4.2°C). During December, an average low-temperature of 28.6°F (-1.9°C) is observed.

Humidity

In Medway, Massachusetts, the average relative humidity in December is 77%.

Rainfall

In Medway, in December, during 7.8 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 116.7 rainfall days, and 10.91" (277mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In December, it is snowing for 3.5 days. Throughout December, 0.94" (24mm) of snow is accumulated. In Medway, during the entire year, snow falls for 23.4 days and aggregates up to 6.02" (153mm) of snow.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December in Medway, sunrise is at 6:55 am and sunset at 4:14 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:23 pm EST.

Sunshine

In Medway, Massachusetts, the average sunshine in December is 4.9h.

UV index

January through March, November 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 rays for ordinary individuals.
Note: A maximum high daily UV index of 2 during December translates into the following directions:
Children, babies, and those with sensitive skin should always be shielded from long periods of 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-related eye harm can be minimized with proper sunglasses offering UVA and UVB coverage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.
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Frequently asked questions

How cold is it in Medway in December?

December temperatures in Medway vary between a high-temperature of 39.6°F (4.2°C) and a low-temperature of 28.6°F (-1.9°C). In August, the average heat index (a.k.a. 'real feel', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 86°F (30°C).

What is the average humidity in December in Medway?

In Medway, the average relative humidity in December is 77%.

How much does it rain in Medway in December?

In Medway, during December, the rain falls for 7.8 days and regularly aggregates up to 0.94" (24mm) of precipitation.

How many days does it snow in December in Medway?

In December, in Medway, it is snowing for 3.5 days. Throughout December, 0.94" (24mm) of snow is accumulated.

What is the month with the shortest days in Medway?

With an average of 9h and 12min of daylight, December has the shortest days of the year.

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

In Medway, Massachusetts, the average day length in December is 9h and 10min.

What time are sunrise and sunset in December in Medway?

In December, on the first day of the month, sunrise is at 6:55 am and sunset at 4:14 pm. On the last day of the month, in Medway, Massachusetts, sunrise is at 7:13 am and sunset at 4:23 pm EST.

How many hours of sunshine does Medway have in December?

In Medway, the average sunshine duration in December is 4.9h.

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

January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Medway.

What is the UV index reading in December in Medway?

The average daily maximum UV index in December in Medway, Massachusetts, is 2. A UV Index estimate of 2, and below, represents a low health threat from unprotected exposure to 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
Medway, MA

Average temperature in December - Medway, MA
  • Average high temperature in December: 39.6°F

The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (33.4°F).

  • Average low temperature in December: 28.6°F

The month with the highest average low temperature is July (63.3°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

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Average pressure in December
Medway, MA

Average pressure in December - Medway, MA
  • Average pressure in December: 30.04"Hg

The month with the highest atmospheric pressure is November (30.07"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

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Average wind speed in December
Medway, MA

Average wind speed in December - Medway, MA
  • Average wind speed in December: 8.3mph

The windiest months (with the highest average wind speed) are January, February and March (8.9mph).
The calmest month (with the lowest average wind speed) is August (5.8mph).

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Average humidity in December
Medway, MA

Average humidity in December - Medway, MA
  • Average humidity in December: 77%

The month with the highest relative humidity is February (79%).
The month with the lowest relative humidity is April (71%).

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Average rainfall in December
Medway, MA

Average rainfall in December - Medway, MA
  • Average rainfall in December: 0.94"

The wettest month (with the highest rainfall) is July (1.18").
The driest month (with the least rainfall) is September (0.55").

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Average rainfall days in December
Medway, MA

Average rainfall days in December - Medway, MA
  • Average rainfall days in December: 7.8 days

The month with the highest number of rainy days is July (14 days).
The month with the least rainy days is January (6.2 days).

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Average snowfall in December
Medway, MA

Average snowfall in December - Medway, MA
  • Average snowfall in December: 0.94"

The month with the highest snowfall is March (1.61").
The months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Medway, MA

Average snowfall days in December - Medway, MA
  • Average snowfall days in December: 3.5 days

The months with the highest number of snowfall days are January and February (5.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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Average daylight in December /
Average sunshine in December
Medway, MA

Average daylight in December / Average sunshine in December - Medway, MA
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 12min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).

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Average sunshine days in December
Medway, MA

Average sunshine days in December - Medway, MA
  • Average sunshine days in December: 19.3 days

The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (14.6 days).

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Average UV index in December
Medway, MA

Average UV index in December - Medway, MA
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).

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Average cloud cover in December
Medway, MA

Average cloud cover in December - Medway, MA
  • Average cloud cover in December: 47

The month with the most cloud cover is March (Cloud cover 50).
The month with the least cloud cover is August (Cloud cover 35).

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Average visibility in December
Medway, MA

Average visibility in December - Medway, MA
  • Average visibility in December: 6mi

The months with the highest visibility are January, February, March, April, May, October, November and December (6mi).
The months with the lowest visibility are June, July, August and September (5mi).

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Medway, Massachusetts, USA

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