December weather forecast
Olyphant, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Olyphant, Pennsylvania, with an average temperature fluctuating between 25°F (-3.9°C) and 35.6°F (2°C).

Temperature

The shift from November to December involves a decrease in the average high-temperature, dropping from a frosty 45.5°F (7.5°C) to a cold 35.6°F (2°C). Olyphant, in the month of December, anticipates a consistent average low-temperature of 25°F (-3.9°C).

Humidity

The months with the highest humidity are February and December, with an average relative humidity of 85%.

Rainfall

In Olyphant, during December, the rain falls for 10.5 days and regularly aggregates up to 1.93" (49mm) of precipitation. In Olyphant, during the entire year, the rain falls for 149.5 days and collects up to 25.94" (659mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, in Olyphant, it is snowing for 12.4 days. Throughout December, 4.61" (117mm) of snow is accumulated. Throughout the year, there are 63.2 snowfall days, and 24.84" (631mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of December, sunrise is at 7:09 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:42 pm EST.

Sunshine

In Olyphant, the average sunshine in December is 3.4h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: An average maximum UV index of 1 in December leads to these recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. On days when the sun blazes, arm yourself with sunglasses that block UVA and UVB radiation. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.

Frequently asked questions

How cold is it in December?

The high-temperature, in December, in Olyphant, records 35.6°F (2°C), while the low-temperature is 25°F (-3.9°C). In July, the average heat index (a.k.a. 'feels like', 'apparent temperature'), which combines relative humidity and air temperature, is evaluated at 86°F (30°C).

What is the most humid month?

February and December, with an average relative humidity of 85%, are most humid months.

What is the average humidity in December?

In December, the average relative humidity is 85%.

How much does it rain in December?

In Olyphant, during December, the rain falls for 10.5 days and regularly aggregates up to 1.93" (49mm) of precipitation.

How many days does it snow in December?

In Olyphant, in December, during 12.4 snowfall days, 4.61" (117mm) of snow is typically accumulated.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 12min of daylight.

How many hours of daylight does Olyphant have in December?

The average day length in December is 9h and 14min.

What time are sunrise and sunset in December in Olyphant?

In December, on the first day of the month, sunrise is at 7:09 am and sunset at 4:33 pm. On the last day of the month, sunrise is at 7:28 am and sunset at 4:42 pm EST.

How many hours of sunshine does Olyphant have in December?

In December, the average sunshine duration in Olyphant is 3.4h.

What is the month with the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index reading of 2, and below, represents 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
Olyphant, PA

Average temperature in December - Olyphant, PA
  • Average high temperature in December: 35.6°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 (30°F).

  • Average low temperature in December: 25°F

The month with the highest average low temperature is July (58.5°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in December
Olyphant, PA

Average pressure in December - Olyphant, PA
  • Average pressure in December: 30.08"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
Olyphant, PA

Average wind speed in December - Olyphant, PA
  • Average wind speed in December: 8mph

The windiest month (with the highest average wind speed) is February (8.4mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).

Average humidity in December
Olyphant, PA

Average humidity in December - Olyphant, PA
  • Average humidity in December: 85%

The months with the highest relative humidity are February and December (85%).
The months with the lowest relative humidity are April, June and July (78%).

Average rainfall in December
Olyphant, PA

Average rainfall in December - Olyphant, PA
  • Average rainfall in December: 1.93"

The wettest month (with the highest rainfall) is May (2.56").
The driest months (with the least rainfall) are January and September (1.73").

Average rainfall days in December
Olyphant, PA

Average rainfall days in December - Olyphant, PA
  • Average rainfall days in December: 10.5 days

The month with the highest number of rainy days is May (16.8 days).
The month with the least rainy days is January (6.3 days).

Average snowfall in December
Olyphant, PA

Average snowfall in December - Olyphant, PA
  • Average snowfall in December: 4.61"

The month with the highest snowfall is January (5.67").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Olyphant, PA

Average snowfall days in December - Olyphant, PA
  • Average snowfall days in December: 12.4 days

The month with the highest number of snowfall days is January (15.4 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Olyphant, PA
  • Average daylight in December: 9h and 1min

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 12min).

  • Average sunshine in December: 3h and 2min

The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 18min).

Average sunshine days in December
Olyphant, PA

Average sunshine days in December - Olyphant, PA
  • Average sunshine days in December: 11.1 days

The month with the most sunshine days is September (16.5 days).
The month with the least sunshine days is April (10 days).

Average UV index in December
Olyphant, PA

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

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

Average cloud cover in December
Olyphant, PA

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

The months with the most cloud cover are February and December (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in December
Olyphant, PA

Average visibility in December - Olyphant, 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).

Olyphant, Pennsylvania, USA

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