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 Hagerstown, the average high-temperature in December drops from a cool 50.7°F (10.4°C) in November to a cold 41.5°F (5.3°C). In December, in Hagerstown, the average low-temperature is 29.3°F (-1.5°C).Humidity
In December, the average relative humidity in Hagerstown is 78%.Rainfall
In Hagerstown, during 11.2 rainfall days, 2.24" (57mm) of precipitation is typically accumulated. In Hagerstown, during the entire year, the rain falls for 164.7 days and collects up to 29.17" (741mm) of precipitation.Snowfall
Months with snowfall in Hagerstown are January through April, October through December. In Hagerstown, in December, snow falls for 5.2 days, with typically accumulated 2.17" (55mm) of snow. In Hagerstown, Maryland, during the entire year, snow falls for 28.6 days and aggregates up to 14.65" (372mm) of snow.Daylight
The month with the shortest days in Hagerstown is December, with an average of 9h and 25min of daylight.On the first day of the month, sunrise is at 7:12 am and sunset at 4:47 pm. On the last day of December, in Hagerstown, sunrise is at 7:31 am and sunset at 4:56 pm EST.
Sunshine
In Hagerstown, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the average maximum UV index of 2 translate into the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. 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. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
FAQ
What is the temperature in December in Hagerstown?
What is the average humidity in December in Hagerstown?
How much does it rain in Hagerstown in December?
How many days does it snow in December in Hagerstown?
What is the month with the shortest days in Hagerstown?
What is the average length of the day in December in Hagerstown?
What time are sunrise and sunset in December in Hagerstown?
How long on average sun shines in December in Hagerstown?
What are the months with the lowest UV index in Hagerstown?
How high is the UV index in December in Hagerstown?
Average temperature in December
Hagerstown, MD
- Average high temperature in December: 41.5°F
The warmest month (with the highest average high temperature) is July (84.6°F).
The month with the lowest average high temperature is January (36.1°F).
- Average low temperature in December: 29.3°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (22.8°F).
Average pressure in December
Hagerstown, 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 (29.95"Hg).
Average wind speed in December
Hagerstown, MD
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is January (7.7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).
Average humidity in December
Hagerstown, MD
- Average humidity in December: 78%
The months with the highest relative humidity are May and October (79%).
The months with the lowest relative humidity are April and July (75%).
Average rainfall in December
Hagerstown, MD
- Average rainfall in December: 2.24"
The wettest month (with the highest rainfall) is May (3.11").
The driest month (with the least rainfall) is February (1.97").
Average rainfall days in December
Hagerstown, MD
- Average rainfall days in December: 11.2 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.8 days).
Average snowfall in December
Hagerstown, MD
- Average snowfall in December: 2.17"
The month with the highest snowfall is January (4.21").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Hagerstown, MD
- Average snowfall days in December: 5.2 days
The month with the highest number of snowfall days is January (9 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Hagerstown, MD
- Average daylight in December: 9h and 25min
The month with the longest days is June (Average daylight: 14h and 56min).
The month with the shortest days is December (Average daylight: 9h and 25min).
- Average sunshine in December: 4h and 54min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is February (Average sunshine: 4h and 42min).
Average sunshine days in December
Hagerstown, MD
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
Hagerstown, MD
- Average UV index in December: 2
The months with the highest UV index are May, June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Hagerstown, MD
- Average cloud cover in December: 49
The months with the most cloud cover are January, February, March and December (Cloud cover 49).
The month with the least cloud cover is July (Cloud cover 31).
Average visibility in December
Hagerstown, MD
- Average visibility in December: 6mi
The months with the highest visibility are April, June, July, August, November and December (6mi).
The months with the lowest visibility are January, February, March, May, September and October (5mi).
Weather forecast for your location
2. Allow the app to use your location
* you will be automatically redirected to the weather forecast for your location
