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
December comes with a decrease in the average high-temperature, falling from a chilly 45.5°F (7.5°C) in November to a wintry 36.3°F (2.4°C). An average nighttime temperature of 25.5°F (-3.6°C) is witnessed throughout December.Humidity
February and December, with an average relative humidity of 84%, are the most humid months.Rainfall
In Arrowhead Lake, Pennsylvania, during December, the rain falls for 7.7 days and regularly aggregates up to 0.75" (19mm) of precipitation. In Arrowhead Lake, during the entire year, the rain falls for 121.5 days and collects up to 10.51" (267mm) of precipitation.Snowfall
Months with snowfall in Arrowhead Lake are January through May, October through December. In Arrowhead Lake, in December, snow falls for 9.1 days, with typically accumulated 1.38" (35mm) of snow. Throughout the year, there are 47 snowfall days, and 8.23" (209mm) of snow is accumulated.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Arrowhead Lake.On the first day of the month, sunrise is at 7:08 am and sunset at 4:34 pm. On the last day of December, in Arrowhead Lake, sunrise is at 7:27 am and sunset at 4:43 pm EST.
Sunshine
The average sunshine in December is 3.9h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index in Arrowhead Lake, Pennsylvania. A UV Index reading of 2, and below, represents a minimal health vulnerability from unsafe exposure to UV radiation for ordinary individuals.Note: In December, a daily maximum UV index of 1 leads to the following instructions:
It is important to always shield children, babies, and individuals with sensitive skin from prolonged exposure to the sun. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. 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. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Frequently asked questions
How cold is it in Arrowhead Lake in December?
What are the most humid months in Arrowhead Lake?
What is the average humidity in December in Arrowhead Lake?
How much does it rain in Arrowhead Lake in December?
How much does it snow in Arrowhead Lake in December?
What is the month with the shortest days in Arrowhead Lake?
How many hours of daylight does Arrowhead Lake have in December?
When are sunrise and sunset in December in Arrowhead Lake?
How long on average sun shines in December in Arrowhead Lake?
What is the month with the lowest UV index in Arrowhead Lake?
What is the UV index reading in December in Arrowhead Lake?
Average temperature in December
Arrowhead Lake, PA
- Average high temperature in December: 36.3°F
The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 25.5°F
The month with the highest average low temperature is July (60.1°F).
The coldest month (with the lowest average low temperature) is January (18.7°F).
Average pressure in December
Arrowhead Lake, 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
Arrowhead Lake, PA
- Average wind speed in December: 8mph
The windiest months (with the highest average wind speed) are January and March (8.5mph).
The calmest month (with the lowest average wind speed) is August (5.3mph).
Average humidity in December
Arrowhead Lake, PA
- Average humidity in December: 84%
The months with the highest relative humidity are February and December (84%).
The months with the lowest relative humidity are April, June and July (78%).
Average rainfall in December
Arrowhead Lake, PA
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is July (1.22").
The driest month (with the least rainfall) is September (0.51").
Average rainfall days in December
Arrowhead Lake, PA
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is May (14.1 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in December
Arrowhead Lake, PA
- Average snowfall in December: 1.38"
The months with the highest snowfall are January, February and March (1.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Arrowhead Lake, PA
- Average snowfall days in December: 9.1 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Arrowhead Lake, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is February (Average sunshine: 3h and 48min).
Average sunshine days in December
Arrowhead Lake, PA
- Average sunshine days in December: 18 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is May (12.5 days).
Average UV index in December
Arrowhead Lake, 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
Arrowhead Lake, PA
- Average cloud cover in December: 60
The months with the most cloud cover are February and December (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 38).
Average visibility in December
Arrowhead Lake, 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).
Arrowhead Lake, Pennsylvania, USA
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