Contents
- Weather in December
- Frequently asked questions
- Average temperature in December
- Average pressure in December
- Average wind speed in December
- Average humidity in December
- Average rainfall in December
- Average rainfall days in December
- Average snowfall in December
- Average snowfall days in December
- Average daylight in December
- Average sunshine in December
- Average sunshine days in December
- Average UV index in December
- Average cloud cover in December
- Average visibility in December
Weather in December
Temperature
The onset of December results in a decrease in the average high-temperature, receding from a chilly 49.8°F (9.9°C) in November to a wintry 40.3°F (4.6°C). In the month of December, Shermans Dale records a consistent average low-temperature of 28.8°F (-1.8°C).Humidity
In Shermans Dale, the average relative humidity in December is 79%.Rainfall
In December, the rain falls for 11 days. Throughout December, 2.28" (58mm) of precipitation is accumulated. In Shermans Dale, during the entire year, the rain falls for 161.8 days and collects up to 30.71" (780mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In December, it is snowing for 5.5 days. Throughout December, 2.01" (51mm) of snow is accumulated. In Shermans Dale, during the entire year, snow falls for 28.8 days and aggregates up to 15.67" (398mm) of snow.Daylight
With an average of 9h and 24min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:12 am and sunset at 4:43 pm. On the last day of the month, sunrise is at 7:31 am and sunset at 4:52 pm EST.
Sunshine
The average sunshine in December is 4.5h.UV index
January through March, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Long-term sun exposure is typically not a concern for most. However, those with sensitive skin, infants, and children must always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How many days does it rain in December in Shermans Dale?
How many days does it snow in December in Shermans Dale?
What is the month with the shortest days?
How many hours of daylight does Shermans Dale have in December?
When are sunrise and sunset in December?
How many hours of sunshine does Shermans Dale have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Shermans Dale, PA
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (63.1°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).
Average pressure in December
Shermans Dale, 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 (29.95"Hg).
Average wind speed in December
Shermans Dale, PA
- Average wind speed in December: 7.2mph
The windiest month (with the highest average wind speed) is April (7.9mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Shermans Dale, PA
- Average humidity in December: 79%
The month with the highest relative humidity is February (80%).
The months with the lowest relative humidity are March and April (75%).
Average rainfall in December
Shermans Dale, PA
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is January (2.13").
Average rainfall days in December
Shermans Dale, PA
- Average rainfall days in December: 11 days
The month with the highest number of rainy days is May (18.3 days).
The months with the least rainy days are January and February (8.8 days).
Average snowfall in December
Shermans Dale, PA
- Average snowfall in December: 2.01"
The month with the highest snowfall is January (4.57").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Shermans Dale, PA
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Shermans Dale, PA
- Average daylight in December: 9h and 2min
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: 4h and 3min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 18min).
Average sunshine days in December
Shermans Dale, PA
- Average sunshine days in December: 16 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is May (10.4 days).
Average UV index in December
Shermans Dale, PA
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, March, November and December (UV index 2).
Average cloud cover in December
Shermans Dale, PA
- Average cloud cover in December: 52
The months with the most cloud cover are February and December (Cloud cover 52).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Shermans Dale, PA
- Average visibility in December: 6mi
The months with the highest visibility are March, April, June, July, August, October, November and December (6mi).
The months with the lowest visibility are January, February, May and September (5mi).
Shermans Dale, Pennsylvania, USA
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