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 start of December comes with a reduction in the average high-temperature, receding from a frosty 48.7°F (9.3°C) in November to an icy 39°F (3.9°C). Throughout December, Middleburg records an average temperature of 28°F (-2.2°C) at night.Humidity
In December, the average relative humidity is 80%.Rainfall
In Middleburg, during December, the rain falls for 11.6 days and regularly aggregates up to 2.01" (51mm) of precipitation. In Middleburg, during the entire year, the rain falls for 162.8 days and collects up to 28.46" (723mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Middleburg, in December, during 6.7 snowfall days, 2.17" (55mm) of snow is typically accumulated. In Middleburg, during the entire year, snow falls for 38.9 days and aggregates up to 17.24" (438mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:13 am and sunset at 4:41 pm. On the last day of December, sunrise is at 7:32 am and sunset at 4:50 pm EST.
Sunshine
In Middleburg, the average sunshine in December is 4.4h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: A typical high UV index of 1 in December suggests the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in Middleburg in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Middleburg have in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Middleburg, PA
- Average high temperature in December: 39°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (33.1°F).
- Average low temperature in December: 28°F
The month with the highest average low temperature is July (61°F).
The coldest month (with the lowest average low temperature) is January (20.3°F).
Average pressure in December
Middleburg, 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
Middleburg, PA
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is April (7.7mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Middleburg, PA
- Average humidity in December: 80%
The month with the highest relative humidity is February (82%).
The months with the lowest relative humidity are March and April (76%).
Average rainfall in December
Middleburg, PA
- Average rainfall in December: 2.01"
The wettest month (with the highest rainfall) is May (3.15").
The driest month (with the least rainfall) is November (1.85").
Average rainfall days in December
Middleburg, PA
- Average rainfall days in December: 11.6 days
The month with the highest number of rainy days is May (17.8 days).
The month with the least rainy days is February (9 days).
Average snowfall in December
Middleburg, PA
- Average snowfall in December: 2.17"
The month with the highest snowfall is February (4.92").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Middleburg, PA
- Average snowfall days in December: 6.7 days
The month with the highest number of snowfall days is January (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
Middleburg, 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: 4h and 2min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is February (Average sunshine: 4h and 12min).
Average sunshine days in December
Middleburg, PA
- Average sunshine days in December: 14.4 days
The month with the most sunshine days is November (16.8 days).
The months with the least sunshine days are February and May (11 days).
Average UV index in December
Middleburg, PA
- Average UV index in December: 1
The month with the highest UV index is June (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Middleburg, PA
- Average cloud cover in December: 54
The months with the most cloud cover are January, February and December (Cloud cover 54).
The month with the least cloud cover is July (Cloud cover 32).
Average visibility in December
Middleburg, PA
- Average visibility in December: 5mi
The months with the highest visibility are April, June, July and November (6mi).
The months with the lowest visibility are January, February, March, May, August, September, October and December (5mi).
Middleburg, Pennsylvania, USA
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