December weather forecastBlooming Valley, PA
December
Weather in December
December, the first month of the winter in Blooming Valley, is also a wintry month, with an average temperature varying between 35.6°F (2°C) and 26.4°F (-3.1°C).Temperature
December involves a decrease in temperature, down from a chilly 45.3°F (7.4°C) in November to a cold 35.6°F (2°C). During the month of December, an average temperature of 26.4°F (-3.1°C) is noted during the nights.Humidity
In December, the average relative humidity is 87%.Rainfall
In Blooming Valley, during December, the rain falls for 10.9 days and regularly aggregates up to 3.27" (83mm) of precipitation. In Blooming Valley, during the entire year, the rain falls for 177.7 days and collects up to 36.85" (936mm) of precipitation.Snowfall
January through May, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 18.3 days and accumulates 10.87" (276mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of the month, sunrise is at 7:28 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:47 am and sunset at 4:59 pm EST.
Sunshine
In December, the average sunshine is 2.4h.UV index
February and December, with an average maximum UV index of 1, are months 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: During December, 1 as the daily maximum UV index converts into the following advice:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. On bright days sunglasses that block both UVA and UVB rays should be worn. A hat with a wide brim is extremely helpful, as it can prevent roughly 50% of UV radiation from reaching the eyes. Warning! The reflection from snow can nearly magnify the Sun's UV radiation twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Blooming Valley, PA
- Average high temperature in December: 35.6°F
The warmest month (with the highest average high temperature) is July (78.3°F).
The month with the lowest average high temperature is January (29.5°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (59.7°F).
The coldest month (with the lowest average low temperature) is January (18.1°F).
Average pressure in December
Blooming Valley, 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 (29.93"Hg).
Average wind speed in December
Blooming Valley, PA
- Average wind speed in December: 9.1mph
The windiest month (with the highest average wind speed) is January (9.6mph).
The calmest month (with the lowest average wind speed) is July (5.8mph).
Average humidity in December
Blooming Valley, PA
- Average humidity in December: 87%
The month with the highest relative humidity is February (90%).
The months with the lowest relative humidity are April and May (80%).
Average rainfall in December
Blooming Valley, PA
- Average rainfall in December: 3.27"
The wettest month (with the highest rainfall) is April (3.62").
The driest month (with the least rainfall) is September (2.4").
Average rainfall days in December
Blooming Valley, PA
- Average rainfall days in December: 10.9 days
The months with the highest number of rainy days are June and July (18.8 days).
The month with the least rainy days is January (8.2 days).
Average snowfall in December
Blooming Valley, PA
- Average snowfall in December: 10.87"
The month with the highest snowfall is December (10.87").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Blooming Valley, PA
- Average snowfall days in December: 18.3 days
The month with the highest number of snowfall days is January (21.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Blooming Valley, PA
- Average daylight in December: 9h and 12min
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 24min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 2h and 12min).
Average sunshine days in December
Blooming Valley, PA
- Average sunshine days in December: 5.8 days
The month with the most sunshine days is September (11.6 days).
The month with the least sunshine days is January (5.1 days).
Average UV index in December
Blooming Valley, 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 February and December (UV index 1).
Average cloud cover in December
Blooming Valley, PA
- Average cloud cover in December: 75
The month with the most cloud cover is January (Cloud cover 79).
The months with the least cloud cover are July and August (Cloud cover 34).
Average visibility in December
Blooming Valley, PA
- Average visibility in December: 4mi
The months with the highest visibility are April and October (6mi).
The months with the lowest visibility are January, February and December (4mi).
