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
Morann's weather in December involves a decrease in the average high-temperature, moving down from November's frosty 46.8°F (8.2°C) to an icy 37°F (2.8°C). Morann's nighttime temperature in December drops to an average of 26.4°F (-3.1°C).Humidity
The average relative humidity in December is 84%.Rainfall
In Morann, during December, the rain falls for 13.1 days and regularly aggregates up to 2.76" (70mm) of precipitation. Throughout the year, in Morann, there are 176.6 rainfall days, and 30.94" (786mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Morann, during December, snow falls for 12 days and regularly aggregates up to 4.17" (106mm) of snow. In Morann, Pennsylvania, during the entire year, snow falls for 58.3 days and aggregates up to 23.7" (602mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:18 am and sunset at 4:46 pm. On the last day of December, sunrise is at 7:37 am and sunset at 4:56 pm EST.
Sunshine
The average sunshine in December is 3.8h.UV index
With an average maximum UV index of 1, December is the month with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum UV index of 1 during December leads to these instructions:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. To protect against the Sun's most potent rays, avoid direct exposure around midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
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 Morann have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Morann have in December?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Morann, PA
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (31.5°F).
- Average low temperature in December: 26.4°F
The month with the highest average low temperature is July (59°F).
The coldest month (with the lowest average low temperature) is January (19°F).
Average pressure in December
Morann, 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
Morann, PA
- Average wind speed in December: 8.1mph
The windiest month (with the highest average wind speed) is January (8.8mph).
The calmest month (with the lowest average wind speed) is August (4.9mph).
Average humidity in December
Morann, PA
- Average humidity in December: 84%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, June and July (77%).
Average rainfall in December
Morann, PA
- Average rainfall in December: 2.76"
The wettest month (with the highest rainfall) is May (3.39").
The driest month (with the least rainfall) is November (1.97").
Average rainfall days in December
Morann, PA
- Average rainfall days in December: 13.1 days
The month with the highest number of rainy days is May (18.9 days).
The month with the least rainy days is February (10.5 days).
Average snowfall in December
Morann, PA
- Average snowfall in December: 4.17"
The month with the highest snowfall is January (6.73").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Morann, PA
- Average snowfall days in December: 12 days
The month with the highest number of snowfall days is January (16.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Morann, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 30min).
Average sunshine days in December
Morann, PA
- Average sunshine days in December: 10.3 days
The month with the most sunshine days is November (14.5 days).
The month with the least sunshine days is February (8.5 days).
Average UV index in December
Morann, 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
Morann, PA
- Average cloud cover in December: 61
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is July (Cloud cover 36).
Average visibility in December
Morann, PA
- Average visibility in December: 5mi
The month with the highest visibility is April (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October, November and December (5mi).
Morann, Pennsylvania, USA
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