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
Welcoming December, Garland observes a shift in the average high-temperature, falling from November's frosty 44.1°F (6.7°C) to a wintry 34.7°F (1.5°C). The average nighttime temperature in Garland lowers to a subzero cold 25.2°F (-3.8°C) throughout December.Humidity
The average relative humidity in December in Garland, Pennsylvania, is 88%.Rainfall
In Garland, during December, the rain falls for 10.2 days and regularly aggregates up to 1.81" (46mm) of precipitation. In Garland, Pennsylvania, during the entire year, the rain falls for 162.1 days and collects up to 21.81" (554mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. December is the month with the most snowfall. Snow falls for 18.1 days and accumulates 6.77" (172mm) of snow.Daylight
The month with the shortest days in Garland is December, with an average of 9h and 12min of daylight.On the first day of December in Garland, sunrise is at 7:26 am and sunset at 4:47 pm. On the last day of the month, sunrise is at 7:45 am and sunset at 4:57 pm EST.
Sunshine
In Garland, the average sunshine in December is 2.3h.UV index
The months with the lowest UV index in Garland are January and December, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 1 in December translates into the following recommendations:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. Limiting exposure to the direct Sun during midday hours can help prevent harmful UV radiation effects. Counter UV radiation's ill effects with clothing designed for sun safety and UV-resistant eyewear. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.
Frequently asked questions
How cold is it in Garland in December?
What is the average humidity in December in Garland?
How much does it rain in Garland in December?
When does it snow the most in Garland?
How many days does it snow in December in Garland?
What is the month with the shortest days in Garland?
What is the average length of the day in December in Garland?
When is the sunrise / sunset in December in Garland?
How long on average sun shines in December in Garland?
When is the lowest UV index in Garland?
What is the UV index reading in December in Garland?
Average temperature in December
Garland, PA
- Average high temperature in December: 34.7°F
The warmest month (with the highest average high temperature) is July (78.1°F).
The month with the lowest average high temperature is January (28.2°F).
- Average low temperature in December: 25.2°F
The month with the highest average low temperature is July (57.6°F).
The coldest month (with the lowest average low temperature) is January (16.9°F).
Average pressure in December
Garland, PA
- Average pressure in December: 30.08"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Garland, PA
- Average wind speed in December: 8.6mph
The windiest month (with the highest average wind speed) is January (9.3mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Garland, PA
- Average humidity in December: 88%
The month with the highest relative humidity is February (90%).
The month with the lowest relative humidity is May (80%).
Average rainfall in December
Garland, PA
- Average rainfall in December: 1.81"
The wettest month (with the highest rainfall) is April (2.52").
The driest month (with the least rainfall) is March (1.42").
Average rainfall days in December
Garland, 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 February (7.3 days).
Average snowfall in December
Garland, PA
- Average snowfall in December: 6.77"
The month with the highest snowfall is December (6.77").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Garland, PA
- Average snowfall days in December: 18.1 days
The month with the highest number of snowfall days is January (22 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Garland, PA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).
- Average sunshine in December: 2h and 2min
The months with the most sunshine are July and August (Average sunshine: 9h and 36min).
The month with the least sunshine is January (Average sunshine: 2h and 6min).
Average sunshine days in December
Garland, PA
- Average sunshine days in December: 6.6 days
The month with the most sunshine days is September (12.9 days).
The month with the least sunshine days is January (5.1 days).
Average UV index in December
Garland, PA
- Average UV index in December: 1
The months with the highest UV index are May, June, July and August (UV index 5).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Garland, PA
- Average cloud cover in December: 77
The month with the most cloud cover is January (Cloud cover 80).
The months with the least cloud cover are July and August (Cloud cover 40).
Average visibility in December
Garland, PA
- Average visibility in December: 4mi
The months with the highest visibility are March, April, May, June, July, September, October and November (5mi).
The months with the lowest visibility are January, February, August and December (4mi).
Garland, Pennsylvania, USA
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