December weather forecast
Tyler Hill, PA

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Weather in December

December, the first month of the winter in Tyler Hill, is also an icy month, with an average temperature varying between 36°F (2.2°C) and 25°F (-3.9°C).

Temperature

The commencement of December involves a temperature shift, with the average high-temperature dropping from a chilly 45.9°F (7.7°C) in November to a cold 36°F (2.2°C). December nights observe an average temperature dip to a freezing cold 25°F (-3.9°C).

Humidity

The most humid month is December, with an average relative humidity of 85%.

Rainfall

In Tyler Hill, in December, during 8.5 rainfall days, 1.46" (37mm) of precipitation is typically accumulated. Throughout the year, there are 132.5 rainfall days, and 19.21" (488mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall. The months with the most snowfall are January and December, with an average 3.27" (83mm) of accumulated snow.

Daylight

The month with the shortest days is December, with an average of 9h and 12min of daylight.
On the first day of the month, sunrise is at 7:08 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:27 am and sunset at 4:40 pm EST.

Sunshine

In Tyler Hill, the average sunshine in December is 3.8h.

UV index

The month with the lowest UV index is December, 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 average individuals.
Note: The maximum UV index, 1 during December, leads to the following recommendations:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. Minimize direct exposure to the Sun during midday when its radiation is at its peak. Sunglasses that guard against UVA and UVB rays are pivotal in minimizing sun-induced ocular damage. Watch out! The Sun's UV radiation can be nearly magnified twofold due to snow reflection.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

December temperatures vary between a high-temperature of 36°F (2.2°C) and a low-temperature of 25°F (-3.9°C). The average heat index (a.k.a. 'apparent temperature', 'felt air temperature'), which represents the influence of relative humidity on air temperature, in July is evaluated at 86°F (30°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 85%.

What is the average humidity in December?

In Tyler Hill, Pennsylvania, the average relative humidity in December is 85%.

How many days does it rain in December?

In Tyler Hill, in December, during 8.5 rainfall days, 1.46" (37mm) of precipitation is typically accumulated.

When does it snow the most?

The months with the most snowfall are January and December, with an average 3.27" (83mm) of accumulated snow.

How much does it snow in December?

In December, it is snowing for 8.2 days. Throughout December, 3.27" (83mm) of snow is accumulated.

What is the month with the shortest days?

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

How many hours of daylight does Tyler Hill have in December?

The average day length in December is 9h and 13min.

When is the sunrise / sunset in December?

In December, on the first day of the month, sunrise is at 7:08 am and sunset at 4:30 pm. On the last day of the month, sunrise is at 7:27 am and sunset at 4:40 pm EST.

How long on average sun shines in December?

In December, the average sunshine duration is 3.8h.

What is the month with the lowest UV index?

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

What is the UV index reading in December?

In Tyler Hill, the average daily maximum UV index in December is 1. A UV Index estimate 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
Tyler Hill, PA

Average temperature in December - Tyler Hill, PA
  • Average high temperature in December: 36°F

The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (30.4°F).

  • Average low temperature in December: 25°F

The month with the highest average low temperature is July (58.6°F).
The coldest month (with the lowest average low temperature) is January (18°F).

Average pressure in December
Tyler Hill, PA

Average pressure in December - Tyler Hill, PA
  • Average pressure in December: 30.08"Hg

The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Tyler Hill, PA

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

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
Tyler Hill, PA

Average humidity in December - Tyler Hill, PA
  • Average humidity in December: 85%

The month with the highest relative humidity is December (85%).
The month with the lowest relative humidity is July (77%).

Average rainfall in December
Tyler Hill, PA

Average rainfall in December - Tyler Hill, PA
  • Average rainfall in December: 1.46"

The wettest months (with the highest rainfall) are July and August (2.09").
The driest months (with the least rainfall) are January and September (1.14").

Average rainfall days in December
Tyler Hill, PA

Average rainfall days in December - Tyler Hill, PA
  • Average rainfall days in December: 8.5 days

The month with the highest number of rainy days is May (15.6 days).
The months with the least rainy days are January and February (6.9 days).

Average snowfall in December
Tyler Hill, PA

Average snowfall in December - Tyler Hill, PA
  • Average snowfall in December: 3.27"

The months with the highest snowfall are January and December (3.27").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Tyler Hill, PA

Average snowfall days in December - Tyler Hill, PA
  • Average snowfall days in December: 8.2 days

The month with the highest number of snowfall days is February (10.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Tyler Hill, PA

Average daylight in December / Average sunshine in December - Tyler Hill, PA
  • 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: 3h and 5min

The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is February (Average sunshine: 3h and 36min).

Average sunshine days in December
Tyler Hill, PA

Average sunshine days in December - Tyler Hill, PA
  • Average sunshine days in December: 15.2 days

The month with the most sunshine days is September (18.6 days).
The month with the least sunshine days is February (12.5 days).

Average UV index in December
Tyler Hill, PA

Average UV index in December - Tyler Hill, 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
Tyler Hill, PA

Average cloud cover in December - Tyler Hill, PA
  • Average cloud cover in December: 62

The months with the most cloud cover are February and December (Cloud cover 62).
The month with the least cloud cover is July (Cloud cover 38).

Average visibility in December
Tyler Hill, PA

Average visibility in December - Tyler Hill, 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).

Tyler Hill, Pennsylvania, USA

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