December weather forecast
Renfrew, PA

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Weather in December

The first month of the winter, December, is also an icy month in Renfrew, Pennsylvania, with an average temperature fluctuating between 38.3°F (3.5°C) and 27.1°F (-2.7°C).

Temperature

Setting in of December comes with a decrease in the average high-temperature, moving from a frosty 47.8°F (8.8°C) in November to a wintry 38.3°F (3.5°C). An average nighttime temperature of 27.1°F (-2.7°C) is witnessed throughout December.

Humidity

The average relative humidity in December is 85%.

Rainfall

In December, the rain falls for 10.2 days. Throughout December, 1.93" (49mm) of precipitation is accumulated. Throughout the year, there are 162.5 rainfall days, and 26.02" (661mm) of precipitation is accumulated.

Snowfall

January through May, October through December are months with snowfall in Renfrew. In Renfrew, during December, snow falls for 12.6 days and regularly aggregates up to 2.44" (62mm) of snow. Throughout the year, there are 58.1 snowfall days, and 14.41" (366mm) of snow is accumulated.

Daylight

December has the shortest days of the year, with an average of 9h and 18min of daylight.
On the first day of December, sunrise is at 7:25 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:02 pm EST.

Sunshine

The average sunshine in December is 3h.

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 unsafe exposure to UV radiation for the average person.
Note: In December, the maximum UV index of 1 suggests this advice:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Considering the strength of solar radiation at midday, one should avoid direct Sun exposure. Experience reduced UV exposure by about half when donning a wide-brim hat. Notice! The UV radiation of the Sun can be intensified nearly twofold due to the reflective quality of snow.
Updated: Aug 31, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

Is December cold in Renfrew?

The high-temperature, in December, in Renfrew, is 38.3°F (3.5°C), while the low-temperature averages to 27.1°F (-2.7°C). The average heat index (a.k.a. 'feels like', 'felt air temperature'), which factors the actual air temperature with the relative humidity, in August is appraised at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December is 85%.

How many days does it rain in December?

In Renfrew, in December, it is raining for 10.2 days, with typically 1.93" (49mm) of accumulated precipitation.

How many days does it snow in December?

In Renfrew, in December, snow falls for 12.6 days, with typically accumulated 2.44" (62mm) of snow.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 18min of daylight.

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

In Renfrew, the average day length in December is 9h and 19min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:25 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:44 am and sunset at 5:02 pm EST.

How many hours of sunshine does Renfrew have in December?

In December, the average sunshine duration is 3h.

When is the lowest UV index?

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

How high is the UV index in December?

In December, the average daily maximum UV index is 1. A UV Index estimate of 2, and below, represents a low health risk 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
Renfrew, PA

Average temperature in December - Renfrew, PA
  • Average high temperature in December: 38.3°F

The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (31.6°F).

  • Average low temperature in December: 27.1°F

The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (19.8°F).

Average pressure in December
Renfrew, PA

Average pressure in December - Renfrew, PA
  • Average pressure in December: 30.1"Hg

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

Average wind speed in December
Renfrew, PA

Average wind speed in December - Renfrew, PA
  • Average wind speed in December: 7.5mph

The windiest month (with the highest average wind speed) is January (8.1mph).
The calmest months (with the lowest average wind speed) are July and August (4.9mph).

Average humidity in December
Renfrew, PA

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

The month with the highest relative humidity is February (87%).
The months with the lowest relative humidity are April, July and August (77%).

Average rainfall in December
Renfrew, PA

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

The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is November (1.61").

Average rainfall days in December
Renfrew, PA

Average rainfall days in December - Renfrew, PA
  • Average rainfall days in December: 10.2 days

The month with the highest number of rainy days is May (17.9 days).
The month with the least rainy days is January (8.6 days).

Average snowfall in December
Renfrew, PA

Average snowfall in December - Renfrew, PA
  • Average snowfall in December: 2.44"

The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").

Average snowfall days in December
Renfrew, PA

Average snowfall days in December - Renfrew, PA
  • Average snowfall days in December: 12.6 days

The month with the highest number of snowfall days is January (17 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Renfrew, PA
  • Average daylight in December: 9h and 2min

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 18min).

  • Average sunshine in December: 3h and 0min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 42min).

Average sunshine days in December
Renfrew, PA

Average sunshine days in December - Renfrew, PA
  • Average sunshine days in December: 10.8 days

The month with the most sunshine days is November (15.4 days).
The month with the least sunshine days is February (9 days).

Average UV index in December
Renfrew, PA

Average UV index in December - Renfrew, 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
Renfrew, PA

Average cloud cover in December - Renfrew, PA
  • Average cloud cover in December: 68

The month with the most cloud cover is January (Cloud cover 72).
The month with the least cloud cover is August (Cloud cover 35).

Average visibility in December
Renfrew, PA

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

The month with the highest visibility is April (6mi).
The months with the lowest visibility are January and February (4mi).

Renfrew, Pennsylvania, USA

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