December weather forecastFairdale, PA

December

Weather in December

December, the first month of the winter in Fairdale, is still a cold month, with an average temperature varying between 29.1°F (-1.6°C) and 40.1°F (4.5°C).

Temperature

The beginning of December involves a decrease in the average high-temperature, transitioning from a chilly 49.8°F (9.9°C) in November to a cold 40.1°F (4.5°C). Fairdale, in December, witnesses an average low-temperature of 29.1°F (-1.6°C).

Humidity

The average relative humidity in December is 83%.

Rainfall

In December, the rain falls for 9.1 days. Throughout December, 1.1" (28mm) of precipitation is accumulated. Throughout the year, there are 143.4 rainfall days, and 13.19" (335mm) of precipitation is accumulated.

Snowfall

Months with snowfall are January through May, October through December. In Fairdale, during December, snow falls for 11.4 days and regularly aggregates up to 2.44" (62mm) of snow. In Fairdale, during the entire year, snow falls for 56 days and aggregates up to 11.54" (293mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:22 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:41 am and sunset at 5:05 pm EST.

Sunshine

The average sunshine in December is 3.8h.

UV index

December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV rays for average individuals.
Note: The daily high UV index of 1 during December translates into the following recommendations:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Aug 20, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

In Fairdale, 40.1°F (4.5°C) is the average high-temperature and 29.1°F (-1.6°C) is the average low-temperature during December. The average heat index (a.k.a. 'real feel', 'feels like'), which combines air temperature and relative humidity, in August is calculated to be 87.8°F (31°C).

The average relative humidity in December is 83%.

In Fairdale, in December, it is raining for 9.1 days, with typically 1.1" (28mm) of accumulated precipitation.

In December, it is snowing for 11.4 days. Throughout December, 2.44" (62mm) of snow is accumulated.

The month with the shortest days is December, with an average of 9h and 24min of daylight.

In December, the average day length is 9h and 24min.

In December, on the first day of the month, sunrise is at 7:22 am and sunset at 4:55 pm. On the last day of the month, sunrise is at 7:41 am and sunset at 5:05 pm EST.

In December, the average sunshine duration is 3.8h.

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

The average daily maximum UV index in December is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average pressure
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Fairdale, PA

  • Average high temperature in December: 40.1°F

The warmest month (with the highest average high temperature) is July (82.8°F).
The month with the lowest average high temperature is January (34.3°F).

  • Average low temperature in December: 29.1°F

The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).

Average pressure in December
Fairdale, PA

  • Average pressure in December: 30.11"Hg

The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

Average wind speed in December
Fairdale, PA

  • Average wind speed in December: 7mph

The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Fairdale, PA

  • Average humidity in December: 83%

The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are July and August (77%).

Average rainfall in December
Fairdale, PA

  • Average rainfall in December: 1.1"

The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is September (0.67").

Average rainfall days in December
Fairdale, PA

  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (8.2 days).

Average snowfall in December
Fairdale, PA

  • Average snowfall in December: 2.44"

The month with the highest snowfall is January (2.83").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Fairdale, PA

  • Average snowfall days in December: 11.4 days

The month with the highest number of snowfall days is January (16.3 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

  • Average daylight in December: 9h and 24min

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 24min).

  • Average sunshine in December: 3h and 48min

The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).

Average sunshine days in December
Fairdale, PA

  • Average sunshine days in December: 13.2 days

The month with the most sunshine days is November (17.7 days).
The month with the least sunshine days is January (9.1 days).

Average UV index in December
Fairdale, 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
Fairdale, PA

  • Average cloud cover in December: 63

The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Fairdale, PA

  • Average visibility in December: 5mi

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