December weather forecast and climate
Montoursville, PA

Weather in December

December, the first month of the winter, in Montoursville, is also a wintry month, with average temperature fluctuating between 36.9°F (2.7°C) and 26.8°F (-2.9°C).

Temperature

In Montoursville, Pennsylvania, the average high-temperature drops, from a frosty 46.6°F (8.1°C) in November, to a cold 36.9°F (2.7°C). In December, in Montoursville, the average low-temperature is 26.8°F (-2.9°C).

Humidity

In December, the average relative humidity is 83%.

Rainfall

In Montoursville, during 11.5 rainfall days, 2.28" (58mm) of precipitation is typically accumulated. In Montoursville, during the entire year, the rain falls for 170.2 days and collects up to 32.2" (818mm) of precipitation.

Snowfall

Months with snowfall in Montoursville are January through May, October through December. In Montoursville, in December, during 8.2 snowfall days, 3.23" (82mm) of snow is typically accumulated. In Montoursville, Pennsylvania, during the entire year, snow falls for 41.9 days, and aggregates up to 19.76" (502mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9.3h of daylight.

Sunshine

The average sunshine in December is 3.9h.

UV index

December is the month with the lowest UV index in Montoursville, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health hazard from the exposure to the Sun's UV radiation for ordinary individuals.
Note: The daily maximum UV index of 1 interpret into the following advice:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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FAQ

What is the average humidity in December in Montoursville?

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

How much does it rain in Montoursville in December?

In Montoursville, Pennsylvania, during December, the rain falls for 11.5 days and regularly aggregates up to 2.28" (58mm) of precipitation.

How much does it snow in Montoursville in December?

In December, it is snowing for 8.2 days. Throughout December, 3.23" (82mm) of snow is accumulated.

What is the month with the shortest days in Montoursville?

With an average of 9.3h of daylight, December has the shortest days of the year in Montoursville.

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

The average length of the day in December in Montoursville is 9.3h.

How long on average sun shines in December in Montoursville?

In Montoursville, the average sunshine in December is 3.9h.

When is the lowest UV index in Montoursville?

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

How high is the UV index in December in Montoursville?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents a low health risk from unprotected exposure to the UV radiation.

Average temperature in December
Montoursville, PA

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

The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (30.7°F).

  • Average low temperature in December: 26.8°F

The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (19°F).

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Average pressure in December
Montoursville, PA

Average pressure in December - Montoursville, PA
  • Average pressure in December: 30.09"

The month with the highest atmospheric pressure is November (30.13").
The month with the lowest atmospheric pressure is June (29.94").

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Average wind speed in December
Montoursville, PA

Average wind speed in December - Montoursville, PA
  • Average wind speed in December: 7.2mph

The windiest months (with the highest average wind speed) are January, March and April (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).

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Average humidity in December
Montoursville, PA

Average humidity in December - Montoursville, 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 (77%).

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Average rainfall in December
Montoursville, PA

Average rainfall in December - Montoursville, PA
  • Average rainfall in December: 2.28"

The wettest month (with the highest rainfall) is July (3.43").
The driest month (with the least rainfall) is November (1.93").

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Average rainfall days in December
Montoursville, PA

Average rainfall days in December - Montoursville, PA
  • Average rainfall days in December: 11.5 days

The month with the highest number of rainy days is July (19.4 days).
The month with the least rainy days is February (8.8 days).

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Average snowfall in December
Montoursville, PA

Average snowfall in December - Montoursville, PA
  • Average snowfall in December: 3.23"

The month with the highest snowfall is February (6.18").
Months with the least snowfall are June, July, August and September (0").

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Average snowfall days in December
Montoursville, PA

Average snowfall days in December - Montoursville, PA
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is January (11.8 days).
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
Montoursville, PA

Average daylight in December / Average sunshine in December - Montoursville, PA
  • Average daylight in December: 9.3h

The month with the longest days is June (Average daylight: 15.1h).
The month with the shortest days is December (Average daylight: 9.3h).

  • Average sunshine in December: 3.9h

The month with the most sunshine is July (Average sunshine: 10.1h).
The month with the least sunshine is February (Average sunshine: 3.7h).

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Average sunshine days in December
Montoursville, PA

Average sunshine days in December - Montoursville, PA
  • Average sunshine days in December: 14.8 days

The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is July (9.9 days).

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Average UV index in December
Montoursville, PA

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

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).

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Average cloud cover in December
Montoursville, PA

Average cloud cover in December - Montoursville, PA
  • Average cloud cover in December: 59

Months with the most cloud cover are January, February and December (Cloud cover 59).
The month with the least cloud cover is July (Cloud cover 36).

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Average visibility in December
Montoursville, PA

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

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

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