December weather forecast
Dayton, AL

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Weather in December

December, the first month of the winter in Dayton, is still a refreshing month, with an average temperature ranging between min 42.6°F (5.9°C) and max 57.9°F (14.4°C).

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from an enjoyable 65.3°F (18.5°C) in November to a mild 57.9°F (14.4°C). Nighttime temperatures consistently average a wintry 42.6°F (5.9°C) during December.

Humidity

December is the most humid month, with an average relative humidity of 80%.

Rainfall

December is the month with the most rainfall. Rain falls for 13 days and accumulates 3.5" (89mm) of precipitation.

Snowfall

January, February and December are months with snowfall. The months with the most snowfall are January and December, with an average 0.35" (9mm) of accumulated snow.

Daylight

December has the shortest days of the year, with an average of 10h and 6min of daylight.
On the first day of December, sunrise is at 6:34 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:56 pm CST.

Sunshine

The month with the least sunshine is December, with an average of 4.9h of sunshine.

UV index

The months with the lowest UV index are January and December, with an average maximum UV index of 3. A UV Index of 3 to 5 symbolizes a moderate threat to health from unsafe exposure to UV radiation for the average person.
Note: The daily high UV index of 3 in December translates into this advice:
Act with care - The need to guard against sun damage is communicated. Minimize direct exposure to the Sun during midday when its radiation is at its peak. For minimizing sun-related eye damage, always choose sunglasses with UVA and UVB coverage. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Updated: Jul 15, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What is the temperature in December?

In December, in Dayton, the average high-temperature is 57.9°F (14.4°C), and the average low-temperature is 42.6°F (5.9°C). The average heat index (a.k.a. 'feels like', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, in September is calculated to be 100.4°F (38°C).

What is the most humid month?

December is the most humid month, with an average relative humidity of 80%.

What is the average humidity in December?

The average relative humidity in December is 80%.

What is the rainiest month?

The month with the most rainfall is December, when the rain falls for 13 days and typically aggregates up to 3.5" (89mm) of precipitation.

How much does it rain in Dayton in December?

In Dayton, in December, during 13 rainfall days, 3.5" (89mm) of precipitation is typically accumulated.

When does it snow the most?

The months with the most snowfall are January and December, with an average 0.35" (9mm) of accumulated snow.

When does it start to snow?

December is the first month it typically snows. Throughout December, in the average 0.4 snowfall days, it receives 0.35" (9mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 10h and 6min of daylight.

What is the average length of the day in December?

In December, the average day length is 10h and 4min.

When are sunrise and sunset in December in Dayton?

In December, on the first day of the month, sunrise is at 6:34 am and sunset at 4:45 pm. On the last day of the month, sunrise is at 6:51 am and sunset at 4:56 pm CST.

What is the month with the least sunshine?

The month with the least sunshine is December, with an average of 4.9h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 4.9h.

When is the lowest UV index?

January and December, with an average maximum UV index of 3, are months with the lowest UV index.

How high is the UV index in December?

In Dayton, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a moderate health threat from unprotected exposure to UV radiation.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Dayton, AL

Average temperature in December - Dayton, AL
  • Average high temperature in December: 57.9°F

The warmest month (with the highest average high temperature) is July (92.7°F).
The month with the lowest average high temperature is January (55°F).

  • Average low temperature in December: 42.6°F

The month with the highest average low temperature is July (72.5°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

Average pressure in December
Dayton, AL

Average pressure in December - Dayton, AL
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).

Average wind speed in December
Dayton, AL

Average wind speed in December - Dayton, AL
  • Average wind speed in December: 6.8mph

The windiest months (with the highest average wind speed) are January, February, March and April (7mph).
The calmest months (with the lowest average wind speed) are July and August (4.5mph).

Average humidity in December
Dayton, AL

Average humidity in December - Dayton, AL
  • Average humidity in December: 80%

The month with the highest relative humidity is December (80%).
The month with the lowest relative humidity is October (69%).

Average rainfall in December
Dayton, AL

Average rainfall in December - Dayton, AL
  • Average rainfall in December: 3.5"

The wettest month (with the highest rainfall) is December (3.5").
The driest month (with the least rainfall) is September (2.01").

Average rainfall days in December
Dayton, AL

Average rainfall days in December - Dayton, AL
  • Average rainfall days in December: 13 days

The month with the highest number of rainy days is July (21.3 days).
The month with the least rainy days is November (8.3 days).

Average snowfall in December
Dayton, AL

Average snowfall in December - Dayton, AL
  • Average snowfall in December: 0.35"

The months with the highest snowfall are January and December (0.35").
The months with the least snowfall are March, April, May, June, July, August, September, October and November (0").

Average snowfall days in December
Dayton, AL

Average snowfall days in December - Dayton, AL
  • Average snowfall days in December: 0.4 days

The month with the highest number of snowfall days is January (0.8 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
Dayton, AL

Average daylight in December / Average sunshine in December - Dayton, AL
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 12min).
The month with the shortest days is December (Average daylight: 10h and 6min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

Average sunshine days in December
Dayton, AL

Average sunshine days in December - Dayton, AL
  • Average sunshine days in December: 16.8 days

The month with the most sunshine days is October (21.2 days).
The month with the least sunshine days is July (8.3 days).

Average UV index in December
Dayton, AL

Average UV index in December - Dayton, AL
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

Average cloud cover in December
Dayton, AL

Average cloud cover in December - Dayton, AL
  • Average cloud cover in December: 47

The months with the most cloud cover are February and December (Cloud cover 47).
The months with the least cloud cover are September and October (Cloud cover 29).

Average visibility in December
Dayton, AL

Average visibility in December - Dayton, AL
  • 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).

Dayton, Alabama, USA

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