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
In the transition to December, Hanover observes a minor drop in the average high-temperature, shifting from a fresh 53.4°F (11.9°C) in November to a frosty 45.5°F (7.5°C). Nightly temperatures drop to an average low of 34.2°F (1.2°C) in December.Humidity
The average relative humidity in December is 76%.Rainfall
In Hanover, in December, it is raining for 10.1 days, with typically 2.28" (58mm) of accumulated precipitation. Throughout the year, there are 156.3 rainfall days, and 29.61" (752mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through March, November and December. In Hanover, in December, snow falls for 2.2 days, with typically accumulated 0.79" (20mm) of snow. In Hanover, during the entire year, snow falls for 12.8 days and aggregates up to 6.77" (172mm) of snow.Daylight
December has the shortest days of the year in Hanover, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:07 am and sunset at 4:44 pm. On the last day of the month, sunrise is at 7:26 am and sunset at 4:54 pm EST.
Sunshine
In Hanover, the average sunshine in December is 5.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Hanover. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for the average person.Note: The UV index of 2 during December leads to these advisories:
Protection from prolonged sun exposure is necessary for babies, children, and individuals with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. A wide-brim hat offers excellent sun protection for the eyes, ears, face, and neck. Sunglasses with UVA and UVB protection significantly reduce eye damage from sun exposure. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are December temperatures?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
When is the lowest UV index in Hanover?
What is the UV index reading in December?
Average temperature in December
Hanover, MD
- Average high temperature in December: 45.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (38.8°F).
- Average low temperature in December: 34.2°F
The month with the highest average low temperature is July (70°F).
The coldest month (with the lowest average low temperature) is January (27.3°F).
Average pressure in December
Hanover, MD
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Hanover, MD
- Average wind speed in December: 8.3mph
The windiest months (with the highest average wind speed) are February and March (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).
Average humidity in December
Hanover, MD
- Average humidity in December: 76%
The month with the highest relative humidity is May (77%).
The months with the lowest relative humidity are April and July (72%).
Average rainfall in December
Hanover, MD
- Average rainfall in December: 2.28"
The wettest month (with the highest rainfall) is August (3.94").
The driest month (with the least rainfall) is January (1.77").
Average rainfall days in December
Hanover, MD
- Average rainfall days in December: 10.1 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is January (8.6 days).
Average snowfall in December
Hanover, MD
- Average snowfall in December: 0.79"
The month with the highest snowfall is January (2.24").
The months with the least snowfall are April, May, June, July, August, September and October (0").
Average snowfall days in December
Hanover, MD
- Average snowfall days in December: 2.2 days
The month with the highest number of snowfall days is February (3.9 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Hanover, MD
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 54min).
The month with the least sunshine is February (Average sunshine: 5h and 6min).
Average sunshine days in December
Hanover, MD
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (19.9 days).
The month with the least sunshine days is July (10.9 days).
Average UV index in December
Hanover, MD
- Average UV index in December: 2
The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Hanover, MD
- Average cloud cover in December: 44
The month with the most cloud cover is March (Cloud cover 45).
The month with the least cloud cover is July (Cloud cover 29).
Average visibility in December
Hanover, MD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Hanover, Maryland, USA
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