December weather forecast
Lake Lynn, PA

Share

Weather in December

The first month of the winter, December, is also an icy month in Lake Lynn, Pennsylvania, with an average temperature varying between 29.3°F (-1.5°C) and 40.6°F (4.8°C).

Temperature

The arrival of December corresponds with a temperature reduction, down from November's fresh 50°F (10°C) to a wintry 40.6°F (4.8°C). An average low-temperature of 29.3°F (-1.5°C) is recorded during the nights in December in Lake Lynn, Pennsylvania.

Humidity

In Lake Lynn, the average relative humidity in December is 83%.

Rainfall

In Lake Lynn, in December, it is raining for 13 days, with typically 3.19" (81mm) of accumulated precipitation. In Lake Lynn, during the entire year, the rain falls for 187.8 days and collects up to 36.46" (926mm) of precipitation.

Snowfall

January through May, October through December are months with snowfall. In December, in Lake Lynn, it is snowing for 13.1 days. Throughout December, 6.14" (156mm) of snow is accumulated. In Lake Lynn, Pennsylvania, during the entire year, snow falls for 63.1 days and aggregates up to 32.32" (821mm) of snow.

Daylight

December has the shortest days of the year, with an average of 9h and 24min of daylight.
On the first day of the month, sunrise is at 7:21 am and sunset at 4:55 pm. On the last day of December, sunrise is at 7:40 am and sunset at 5:05 pm EST.

Sunshine

In Lake Lynn, 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 reading of 2, and below, represents a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: In December, the maximum UV index of 1 translates into these guidelines:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. To mitigate harm from sun exposure, pick sunglasses offering UVA and UVB defense. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.
[Resources]

Frequently asked questions

How cold does it get in Lake Lynn in December?

December temperatures in Lake Lynn, Pennsylvania, vary between a high-temperature of 40.6°F (4.8°C) and a low-temperature of 29.3°F (-1.5°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in August is calculated to be 87.8°F (31°C).

What is the average humidity in December in Lake Lynn?

In Lake Lynn, the average relative humidity in December is 83%.

How many days does it rain in December in Lake Lynn?

In Lake Lynn, in December, it is raining for 13 days, with typically 3.19" (81mm) of accumulated precipitation.

How many days does it snow in December in Lake Lynn?

In Lake Lynn, in December, snow falls for 13.1 days, with typically accumulated 6.14" (156mm) of snow.

What is the month with the shortest days in Lake Lynn?

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

What is the average length of the day in December in Lake Lynn?

In December, the average day length in Lake Lynn is 9h and 25min.

When are sunrise and sunset in December in Lake Lynn?

In December, on the first day of the month, sunrise is at 7:21 am and sunset at 4:55 pm. On the last day of the month, in Lake Lynn, Pennsylvania, sunrise is at 7:40 am and sunset at 5:05 pm EST.

How many hours of sunshine does Lake Lynn have in December?

In Lake Lynn, the average sunshine duration in December is 3.8h.

What is the month with the lowest UV index in Lake Lynn?

The month with the lowest UV index in Lake Lynn, Pennsylvania, is December, with an average maximum UV index of 1.

How high is the UV index in December in Lake Lynn?

The average daily maximum UV index in December in Lake Lynn, Pennsylvania, is 1. A UV Index estimate of 2, and below, represents a low health risk from unsafe 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
Lake Lynn, PA

Average temperature in December - Lake Lynn, PA
  • Average high temperature in December: 40.6°F

The warmest month (with the highest average high temperature) is July (82.6°F).
The month with the lowest average high temperature is January (34.5°F).

  • Average low temperature in December: 29.3°F

The month with the highest average low temperature is July (60.6°F).
The coldest month (with the lowest average low temperature) is January (21.6°F).

[Resources]

Average pressure in December
Lake Lynn, PA

Average pressure in December - Lake Lynn, PA
  • Average pressure in December: 30.12"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).

[Resources]

Average wind speed in December
Lake Lynn, PA

Average wind speed in December - Lake Lynn, PA
  • Average wind speed in December: 6.8mph

The windiest month (with the highest average wind speed) is January (7.4mph).
The calmest month (with the lowest average wind speed) is August (4.3mph).

[Resources]

Average humidity in December
Lake Lynn, PA

Average humidity in December - Lake Lynn, PA
  • Average humidity in December: 83%

The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are July and August (77%).

[Resources]

Average rainfall in December
Lake Lynn, PA

Average rainfall in December - Lake Lynn, PA
  • Average rainfall in December: 3.19"

The wettest month (with the highest rainfall) is May (4.02").
The driest month (with the least rainfall) is September (2.17").

[Resources]

Average rainfall days in December
Lake Lynn, PA

Average rainfall days in December - Lake Lynn, PA
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is January (11.1 days).

[Resources]

Average snowfall in December
Lake Lynn, PA

Average snowfall in December - Lake Lynn, PA
  • Average snowfall in December: 6.14"

The month with the highest snowfall is February (7.76").
The months with the least snowfall are June, July, August and September (0").

[Resources]

Average snowfall days in December
Lake Lynn, PA

Average snowfall days in December - Lake Lynn, PA
  • Average snowfall days in December: 13.1 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).

[Resources]

Average daylight in December /
Average sunshine in December
Lake Lynn, PA

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

The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 3h and 5min

The month with the most sunshine is August (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 0min).

[Resources]

Average sunshine days in December
Lake Lynn, PA

Average sunshine days in December - Lake Lynn, PA
  • Average sunshine days in December: 10 days

The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is January (6.7 days).

[Resources]

Average UV index in December
Lake Lynn, PA

Average UV index in December - Lake Lynn, PA
  • Average UV index in December: 1

The months with the highest UV index are May, June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).

[Resources]

Average cloud cover in December
Lake Lynn, PA

Average cloud cover in December - Lake Lynn, 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).

[Resources]

Average visibility in December
Lake Lynn, PA

Average visibility in December - Lake Lynn, PA
  • Average visibility in December: 5mi

The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (5mi).
The months with the lowest visibility are January and February (4mi).

[Resources]

Lake Lynn, Pennsylvania, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location