December weather forecast
Churchill, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Churchill, Pennsylvania, with temperature in the range of an average low of 28.2°F (-2.1°C) and an average high of 39.2°F (4°C).

Temperature

A shift in the average high-temperature occurs in December, reducing from a frosty 49.1°F (9.5°C) in November to an icy 39.2°F (4°C). Churchill observes an average low-temperature of 28.2°F (-2.1°C) during December.

Humidity

In December, the average relative humidity is 84%.

Rainfall

In December, the rain falls for 12.4 days. Throughout December, 2.91" (74mm) of precipitation is accumulated. Throughout the year, there are 182.2 rainfall days, and 34.84" (885mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. In Churchill, in December, snow falls for 13 days, with typically accumulated 4.76" (121mm) of snow. Throughout the year, there are 62.9 snowfall days, and 25.51" (648mm) 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 the month, sunrise is at 7:23 am and sunset at 4:53 pm. On the last day of December, sunrise is at 7:42 am and sunset at 5:02 pm EST.

Sunshine

In Churchill, the average sunshine in December is 3.2h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the average person.
Note: A maximum daily UV index of 1 during December morphs into the following directions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

How cold is it in December?

In December, in Churchill, the average high-temperature is 39.2°F (4°C), and the average low-temperature is 28.2°F (-2.1°C). In August, the average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which takes the relative humidity and factors it into the air temperature reading, is evaluated at 87.8°F (31°C).

What is the average humidity in December?

The average relative humidity in December is 84%.

How much does it rain in December?

In Churchill, during December, the rain falls for 12.4 days and regularly aggregates up to 2.91" (74mm) of precipitation.

How many days does it snow in December?

In Churchill, in December, snow falls for 13 days, with typically accumulated 4.76" (121mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 18min of daylight.

How many hours of daylight does Churchill have in December?

The average day length in December is 9h and 20min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:23 am and sunset at 4:53 pm. On the last day of the month, in Churchill, sunrise is at 7:42 am and sunset at 5:02 pm EST.

How many hours of sunshine does Churchill have in December?

The average sunshine duration in December is 3.2h.

What is the month with the lowest UV index?

December is the month with the lowest UV index in Churchill, Pennsylvania, with an average maximum UV index of 1.

What is the UV index reading in December?

In December, the average daily maximum UV index is 1. A UV Index of 2, and less, symbolizes a low health threat 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
Churchill, PA

Average temperature in December - Churchill, PA
  • Average high temperature in December: 39.2°F

The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (32.9°F).

  • Average low temperature in December: 28.2°F

The month with the highest average low temperature is July (62.1°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in December
Churchill, PA

Average pressure in December - Churchill, PA
  • 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 (29.95"Hg).

Average wind speed in December
Churchill, PA

Average wind speed in December - Churchill, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest month (with the lowest average wind speed) is August (4.7mph).

Average humidity in December
Churchill, PA

Average humidity in December - Churchill, PA
  • Average humidity in December: 84%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (75%).

Average rainfall in December
Churchill, PA

Average rainfall in December - Churchill, PA
  • Average rainfall in December: 2.91"

The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is November (2.17").

Average rainfall days in December
Churchill, PA

Average rainfall days in December - Churchill, PA
  • Average rainfall days in December: 12.4 days

The month with the highest number of rainy days is May (21 days).
The month with the least rainy days is February (10.4 days).

Average snowfall in December
Churchill, PA

Average snowfall in December - Churchill, PA
  • Average snowfall in December: 4.76"

The month with the highest snowfall is January (6.42").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Churchill, PA

Average snowfall days in December - Churchill, PA
  • Average snowfall days in December: 13 days

The month with the highest number of snowfall days is January (17.8 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

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

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 18min).

  • Average sunshine in December: 3h and 1min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).

Average sunshine days in December
Churchill, PA

Average sunshine days in December - Churchill, PA
  • Average sunshine days in December: 9.7 days

The month with the most sunshine days is November (14.8 days).
The month with the least sunshine days is January (7.4 days).

Average UV index in December
Churchill, PA

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

The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

Average cloud cover in December
Churchill, PA

Average cloud cover in December - Churchill, PA
  • Average cloud cover in December: 66

The month with the most cloud cover is January (Cloud cover 70).
The month with the least cloud cover is August (Cloud cover 34).

Average visibility in December
Churchill, PA

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

The months with the highest visibility are April, June, July, August and November (6mi).
The months with the lowest visibility are January and February (4mi).

Churchill, Pennsylvania, USA

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