December weather forecast
Milnesville, PA

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Weather in December

December, the first month of the winter in Milnesville, is also an icy month, with temperature in the range of an average low of 25.9°F (-3.4°C) and an average high of 36.9°F (2.7°C).

Temperature

December's onset brings a reduction in the average high-temperature, from a frosty 46.4°F (8°C) in November to an icy 36.9°F (2.7°C). Throughout the month of December, Milnesville observes an average nighttime temperature of 25.9°F (-3.4°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Milnesville, in December, it is raining for 11 days, with typically 2.83" (72mm) of accumulated precipitation. Throughout the year, there are 163.3 rainfall days, and 34.37" (873mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Milnesville, in December, during 10.7 snowfall days, 4.57" (116mm) of snow is typically accumulated. Throughout the year, there are 53.8 snowfall days, and 33.66" (855mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:10 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:45 pm EST.

Sunshine

In December, the average sunshine is 3.9h.

UV index

With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index estimate of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV rays for average individuals.
Note: The maximum daily UV index of 1 in December converts into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Considering the Sun's intensity during midday, it's wise to minimize direct exposure. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.

Frequently asked questions

How cold is it in December?

In December, the average high-temperature and low-temperature are 36.9°F (2.7°C) and 25.9°F (-3.4°C) respectively. In July, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is evaluated at 86°F (30°C).

What is the average humidity in December in Milnesville?

In Milnesville, the average relative humidity in December is 83%.

How many days does it rain in December in Milnesville?

In December, the rain falls for 11 days. Throughout December, 2.83" (72mm) of precipitation is accumulated.

How many days does it snow in December?

In Milnesville, Pennsylvania, in December, snow falls for 10.7 days, with typically accumulated 4.57" (116mm) of snow.

What is the month with the shortest days?

With an average of 9h and 18min of daylight, December has the shortest days of the year.

What is the average length of the day in December?

In December, the average day length is 9h and 17min.

What time are sunrise and sunset in December?

On the first day of December, sunrise is at 7:10 am and sunset at 4:36 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:45 pm EST.

How many hours of sunshine does Milnesville have in December?

The average sunshine duration in December is 3.9h.

What is the month with the lowest UV index?

With an average maximum UV index of 1, December is the month with the lowest UV index.

How high is the UV index in December in Milnesville?

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a low health risk 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
Milnesville, PA

Average temperature in December - Milnesville, PA
  • Average high temperature in December: 36.9°F

The warmest month (with the highest average high temperature) is July (80.6°F).
The month with the lowest average high temperature is January (31.5°F).

  • Average low temperature in December: 25.9°F

The month with the highest average low temperature is July (59.9°F).
The coldest month (with the lowest average low temperature) is January (18.9°F).

Average pressure in December
Milnesville, PA

Average pressure in December - Milnesville, PA
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is November (30.12"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).

Average wind speed in December
Milnesville, PA

Average wind speed in December - Milnesville, PA
  • Average wind speed in December: 7.9mph

The windiest month (with the highest average wind speed) is March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.1mph).

Average humidity in December
Milnesville, PA

Average humidity in December - Milnesville, PA
  • Average humidity in December: 83%

The month with the highest relative humidity is February (84%).
The month with the lowest relative humidity is April (78%).

Average rainfall in December
Milnesville, PA

Average rainfall in December - Milnesville, PA
  • Average rainfall in December: 2.83"

The wettest month (with the highest rainfall) is May (3.43").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in December
Milnesville, PA

Average rainfall days in December - Milnesville, PA
  • Average rainfall days in December: 11 days

The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is January (7.2 days).

Average snowfall in December
Milnesville, PA

Average snowfall in December - Milnesville, PA
  • Average snowfall in December: 4.57"

The months with the highest snowfall are January and February (7.64").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Milnesville, PA

Average snowfall days in December - Milnesville, PA
  • Average snowfall days in December: 10.7 days

The month with the highest number of snowfall days is February (12.7 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Milnesville, PA

Average daylight in December / Average sunshine in December - Milnesville, PA
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is February (Average sunshine: 3h and 42min).

Average sunshine days in December
Milnesville, PA

Average sunshine days in December - Milnesville, PA
  • Average sunshine days in December: 12.8 days

The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (8.7 days).

Average UV index in December
Milnesville, PA

Average UV index in December - Milnesville, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June, July and August (UV index 5).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Milnesville, PA

Average cloud cover in December - Milnesville, PA
  • Average cloud cover in December: 60

The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in December
Milnesville, PA

Average visibility in December - Milnesville, PA
  • Average visibility in December: 5mi

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

Milnesville, Pennsylvania, USA

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