December weather forecast
Gaines, PA

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Weather in December

The first month of the winter, December, is also a wintry month in Gaines, Pennsylvania, with an average temperature ranging between max 34.7°F (1.5°C) and min 24.4°F (-4.2°C).

Temperature

During the transition into December, Gaines observes a decrease in the average high-temperature, falling from a frosty 44.1°F (6.7°C) in November to a cold 34.7°F (1.5°C). Gaines in December anticipates an average nighttime temperature of 24.4°F (-4.2°C).

Humidity

The average relative humidity in December is 85%.

Rainfall

In Gaines, in December, during 7.2 rainfall days, 1.1" (28mm) of precipitation is typically accumulated. Throughout the year, there are 125.8 rainfall days, and 15.71" (399mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In December, it is snowing for 7.5 days. Throughout December, 2.13" (54mm) of snow is accumulated. Throughout the year, there are 43.8 snowfall days, and 13.39" (340mm) 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 in Gaines, sunrise is at 7:18 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:49 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 3.1h of sunshine.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: A maximum high daily UV index of 1 during December translates into the following directions:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. Around midday, solar radiation is most harmful; hence, exposure should be limited. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Take note! UV radiation from the Sun can double in intensity due to snow reflection.
Updated: Jun 30, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is it in December?

An average high-temperature, in December, in Gaines, is 34.7°F (1.5°C) and the average low-temperature is 24.4°F (-4.2°C).

What is the average humidity in December in Gaines?

In December, the average relative humidity is 85%.

How much does it rain in December?

In Gaines, in December, it is raining for 7.2 days, with typically 1.1" (28mm) of accumulated precipitation.

How many days does it snow in December?

In Gaines, in December, during 7.5 snowfall days, 2.13" (54mm) 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 Gaines have in December?

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

What time are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:18 am and sunset at 4:40 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 4:49 pm EST.

What are the months with the least sunshine?

January and December, with an average of 3.1h of sunshine, are months with the least sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 3.1h.

What is the month with the lowest UV index?

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

What is the UV index intensity in December?

In Gaines, Pennsylvania, the average daily maximum UV index in December is 1. A UV Index estimate of 2, and below, represents a low health threat from exposure to Sun's UV rays.
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
Gaines, PA

Average temperature in December - Gaines, PA
  • Average high temperature in December: 34.7°F

The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (28.4°F).

  • Average low temperature in December: 24.4°F

The month with the highest average low temperature is July (56.8°F).
The coldest month (with the lowest average low temperature) is January (17.1°F).

Average pressure in December
Gaines, PA

Average pressure in December - Gaines, 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
Gaines, PA

Average wind speed in December - Gaines, PA
  • Average wind speed in December: 8.3mph

The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (5.6mph).

Average humidity in December
Gaines, PA

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

The month with the highest relative humidity is February (86%).
The months with the lowest relative humidity are June and July (78%).

Average rainfall in December
Gaines, PA

Average rainfall in December - Gaines, PA
  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is April (1.69").
The driest month (with the least rainfall) is January (0.87").

Average rainfall days in December
Gaines, PA

Average rainfall days in December - Gaines, PA
  • Average rainfall days in December: 7.2 days

The month with the highest number of rainy days is July (15.5 days).
The month with the least rainy days is February (4.4 days).

Average snowfall in December
Gaines, PA

Average snowfall in December - Gaines, PA
  • Average snowfall in December: 2.13"

The month with the highest snowfall is February (3.35").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Gaines, PA

Average snowfall days in December - Gaines, PA
  • Average snowfall days in December: 7.5 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
Gaines, PA

Average daylight in December / Average sunshine in December - Gaines, 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 1min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The months with the least sunshine are January and December (Average sunshine: 3h and 6min).

Average sunshine days in December
Gaines, PA

Average sunshine days in December - Gaines, PA
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is May (12.5 days).

Average UV index in December
Gaines, PA

Average UV index in December - Gaines, 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
Gaines, PA

Average cloud cover in December - Gaines, PA
  • Average cloud cover in December: 69

The months with the most cloud cover are January, February and December (Cloud cover 69).
The months with the least cloud cover are July and August (Cloud cover 40).

Average visibility in December
Gaines, PA

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

The month with the highest visibility is April (6mi).
The month with the lowest visibility is September (4mi).

Gaines, Pennsylvania, USA

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