December weather forecast
Hagerstown, IN

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Weather in December

The first month of the winter, December, is also a wintry month in Hagerstown, Indiana, with temperature in the range of an average high of 37.9°F (3.3°C) and an average low of 27.9°F (-2.3°C).

Temperature

Hagerstown's weather in December involves a decrease in the average high-temperature, moving down from November's chilly 48.4°F (9.1°C) to a wintry 37.9°F (3.3°C). December witnesses an average nighttime temperature of 27.9°F (-2.3°C).

Humidity

The months with the highest humidity are January, July and December, with an average relative humidity of 83%.

Rainfall

In December, the rain falls for 11.7 days. Throughout December, 2.44" (62mm) of precipitation is accumulated. In Hagerstown, during the entire year, the rain falls for 172.8 days and collects up to 32.32" (821mm) of precipitation.

Snowfall

January through April, October through December are months with snowfall. December is the month with the most snowfall. Snow falls for 10.3 days and accumulates 3.62" (92mm) of snow.

Daylight

The month with the shortest days is December, with an average of 9h and 24min of daylight.
On the first day of December, sunrise is at 7:43 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:25 pm EST.

Sunshine

The average sunshine in December is 3.9h.

UV index

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.
Note: The maximum UV index, 2 during December, leads to the following recommendations:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Direct exposure to the Sun during its peak hours around mid-day should be minimized for safety. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
Updated: Aug 26, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold does it get in December?

The high-temperature, in December, in Hagerstown, records 37.9°F (3.3°C), while the low-temperature is 27.9°F (-2.3°C).

What is the most humid month?

January, July and December, with an average relative humidity of 83%, are most humid months in Hagerstown.

What is the average humidity in December?

In December, the average relative humidity is 83%.

How much does it rain in December?

In Hagerstown, in December, it is raining for 11.7 days, with typically 2.44" (62mm) of accumulated precipitation.

What is the snowiest month?

December is the month with the most snowfall. Snow falls for 10.3 days and accumulates 3.62" (92mm) of snow.

How many days does it snow in December in Hagerstown?

In December, it is snowing for 10.3 days. Throughout December, 3.62" (92mm) of snow is accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 24min of daylight.

How many hours of daylight does Hagerstown have in December?

The average day length in December is 9h and 24min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:43 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:25 pm EST.

How long on average sun shines in December?

The average sunshine duration in December is 3.9h.

What are the months with the lowest UV index?

The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2.

How high is the UV index in December?

In Hagerstown, the average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal hazard to health from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Hagerstown, IN

Average temperature in December - Hagerstown, IN
  • Average high temperature in December: 37.9°F

The warmest month (with the highest average high temperature) is July (80.4°F).
The month with the lowest average high temperature is January (32.4°F).

  • Average low temperature in December: 27.9°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).

Average pressure in December
Hagerstown, IN

Average pressure in December - Hagerstown, IN
  • Average pressure in December: 30.12"Hg

The months with the highest atmospheric pressure are January and November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Hagerstown, IN

Average wind speed in December - Hagerstown, IN
  • Average wind speed in December: 9.7mph

The windiest month (with the highest average wind speed) is January (10.5mph).
The calmest months (with the lowest average wind speed) are July and August (6mph).

Average humidity in December
Hagerstown, IN

Average humidity in December - Hagerstown, IN
  • Average humidity in December: 83%

The months with the highest relative humidity are January, July and December (83%).
The month with the lowest relative humidity is October (75%).

Average rainfall in December
Hagerstown, IN

Average rainfall in December - Hagerstown, IN
  • Average rainfall in December: 2.44"

The wettest month (with the highest rainfall) is May (3.94").
The driest month (with the least rainfall) is February (1.97").

Average rainfall days in December
Hagerstown, IN

Average rainfall days in December - Hagerstown, IN
  • Average rainfall days in December: 11.7 days

The month with the highest number of rainy days is May (20.3 days).
The month with the least rainy days is February (9 days).

Average snowfall in December
Hagerstown, IN

Average snowfall in December - Hagerstown, IN
  • Average snowfall in December: 3.62"

The month with the highest snowfall is December (3.62").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Hagerstown, IN

Average snowfall days in December - Hagerstown, IN
  • Average snowfall days in December: 10.3 days

The month with the highest number of snowfall days is January (12.8 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, IN

Average daylight in December / Average sunshine in December - Hagerstown, IN
  • Average daylight in December: 9h and 2min

The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 3h and 5min

The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).

Average sunshine days in December
Hagerstown, IN

Average sunshine days in December - Hagerstown, IN
  • Average sunshine days in December: 12 days

The month with the most sunshine days is November (15.7 days).
The month with the least sunshine days is July (8.9 days).

Average UV index in December
Hagerstown, IN

Average UV index in December - Hagerstown, IN
  • 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, March, October, November and December (UV index 2).

Average cloud cover in December
Hagerstown, IN

Average cloud cover in December - Hagerstown, IN
  • Average cloud cover in December: 60

The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).

Average visibility in December
Hagerstown, IN

Average visibility in December - Hagerstown, IN
  • Average visibility in December: 6mi

The months with the highest visibility are March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are January, February, July, August and September (5mi).

Hagerstown, Indiana, USA

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