December weather forecast
Hagerstown, IN

Weather in December

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

Temperature

In December, the average high-temperature decreases from a chilly 48.4°F (9.1°C) in November to a cold 37.9°F (3.3°C). In Hagerstown, the average low-temperature is 27.9°F (-2.3°C).

Humidity

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

Rainfall

In Hagerstown, in December, it is raining for 11.7 days, with typically 2.44" (62mm) of accumulated precipitation. Throughout the year, there are 172.8 rainfall days, and 32.32" (821mm) of precipitation is accumulated.

Snowfall

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

Daylight

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

Sunshine

In Hagerstown, the average sunshine in December is 3.9h.

UV index

January through March, October through December, with an average maximum UV index of 2, are months with the lowest UV index in Hagerstown, Indiana. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the average person.
Note: In December, the average maximum UV index of 2 translate into the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What are the most humid months in Hagerstown?

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

What is the average humidity in December in Hagerstown?

In Hagerstown, the average relative humidity in December is 83%.

How much does it rain in Hagerstown in December?

In Hagerstown, during December, the rain falls for 11.7 days and regularly aggregates up to 2.44" (62mm) of precipitation.

When does it snow the most in Hagerstown?

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

How much does it snow in Hagerstown in December?

In Hagerstown, in December, during 10.3 snowfall days, 3.62" (92mm) of snow is typically accumulated.

What is the month with the shortest days in Hagerstown?

With an average of 9h and 24min of daylight, December has the shortest days of the year in Hagerstown, Indiana.

How many hours of daylight does Hagerstown have in December?

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

When are sunrise and sunset in December in Hagerstown?

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

How long on average sun shines in December in Hagerstown?

The average sunshine duration in December in Hagerstown, Indiana, is 3.9h.

When is the lowest UV index in Hagerstown?

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

What is the UV index reading in December in Hagerstown?

In December, the average daily maximum UV index is 2. A UV Index value of 2, and less, symbolizes a low health threat from unsafe exposure to Sun's UV rays.
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).

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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).

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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).

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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%).

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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").

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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).

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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").

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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).

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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 24min

The month with the longest days is June (Average daylight: 14h and 58min).
The month with the shortest days is December (Average daylight: 9h and 24min).

  • Average sunshine in December: 3h and 54min

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).

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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).

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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).

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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).

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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).

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