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
Lamar's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 46.8°F (8.2°C) to a cold 36.9°F (2.7°C). Lamar's nighttime temperature during December is consistently averaged at a freezing cold 25.9°F (-3.4°C).Humidity
The months with the highest humidity are February and December, with an average relative humidity of 84%.Rainfall
In December, the rain falls for 10.5 days. Throughout December, 2.48" (63mm) of precipitation is accumulated. Throughout the year, there are 164.5 rainfall days, and 33.11" (841mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Lamar, during December, snow falls for 8.7 days and regularly aggregates up to 4.41" (112mm) of snow. Throughout the year, there are 49.1 snowfall days, and 25.55" (649mm) 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 in Lamar, sunrise is at 7:16 am and sunset at 4:42 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 4:51 pm EST.
Sunshine
The average sunshine in December is 3.2h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. 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 transforms into these recommendations:
In contrast to children, who must always be shielded from the sun, most people can tolerate up to an hour of sun exposure without any burns. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Opt for tightly woven and loose clothing to enhance protection from the Sun. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December in Lamar?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Lamar have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Lamar have in December?
What is the month with the lowest UV index in Lamar?
How high is the UV index in December in Lamar?
Average temperature in December
Lamar, PA
- Average high temperature in December: 36.9°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.3°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (59.2°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in December
Lamar, 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
Lamar, PA
- Average wind speed in December: 6.9mph
The windiest months (with the highest average wind speed) are January and April (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.8mph).
Average humidity in December
Lamar, PA
- Average humidity in December: 84%
The months with the highest relative humidity are February and December (84%).
The month with the lowest relative humidity is July (76%).
Average rainfall in December
Lamar, PA
- Average rainfall in December: 2.48"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is November (2.01").
Average rainfall days in December
Lamar, PA
- Average rainfall days in December: 10.5 days
The month with the highest number of rainy days is May (19.8 days).
The month with the least rainy days is February (7.3 days).
Average snowfall in December
Lamar, PA
- Average snowfall in December: 4.41"
The month with the highest snowfall is February (7.4").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Lamar, PA
- Average snowfall days in December: 8.7 days
The month with the highest number of snowfall days is January (13.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Lamar, 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 1min
The month with the most sunshine is July (Average sunshine: 9h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 6min).
Average sunshine days in December
Lamar, PA
- Average sunshine days in December: 15.3 days
The month with the most sunshine days is November (16.8 days).
The month with the least sunshine days is May (9.3 days).
Average UV index in December
Lamar, 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
Lamar, PA
- Average cloud cover in December: 65
The month with the most cloud cover is January (Cloud cover 66).
The month with the least cloud cover is July (Cloud cover 39).
Average visibility in December
Lamar, PA
- Average visibility in December: 5mi
The months with the highest visibility are January, March, April, May, June, July, August, October, November and December (5mi).
The months with the lowest visibility are February and September (4mi).
Lamar, Pennsylvania, USA
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