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
As December arrives, Dayton's weather displays a minor decrease in high-temperatures, transitioning from November's mild 56.8°F (13.8°C) to a chilly 49.1°F (9.5°C). During the nights in December, Dayton experiences a consistent average temperature of 35.2°F (1.8°C).Humidity
The most humid month in Dayton is December, with an average relative humidity of 80%.Rainfall
In Dayton, during December, the rain falls for 12.5 days and regularly aggregates up to 3.78" (96mm) of precipitation. In Dayton, during the entire year, the rain falls for 163.6 days and collects up to 37.44" (951mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Dayton, during December, snow falls for 1.4 days and regularly aggregates up to 0.43" (11mm) of snow. In Dayton, during the entire year, snow falls for 8.2 days and aggregates up to 2.01" (51mm) of snow.Daylight
With an average of 9h and 48min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:31 am and sunset at 5:27 pm. On the last day of December, sunrise is at 7:49 am and sunset at 5:37 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 4.8h of sunshine.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for average individuals.Note: The daily high UV index of 2 in December translates into this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
What are the temperatures in Dayton in December?
What is the most humid month in Dayton?
What is the average humidity in December in Dayton?
How much does it rain in Dayton in December?
How many days does it snow in December in Dayton?
What is the month with the shortest days in Dayton?
What is the average length of the day in December in Dayton?
What time are sunrise and sunset in December in Dayton?
What is the month with the least sunshine in Dayton?
How many hours of sunshine does Dayton have in December?
When is the lowest UV index in Dayton?
What is the UV index intensity in December in Dayton?
Average temperature in December
Dayton, TN
- Average high temperature in December: 49.1°F
The warmest month (with the highest average high temperature) is July (87.4°F).
The month with the lowest average high temperature is January (45.1°F).
- Average low temperature in December: 35.2°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (30.2°F).
Average pressure in December
Dayton, TN
- Average pressure in December: 30.15"Hg
The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).
Average wind speed in December
Dayton, TN
- Average wind speed in December: 6mph
The windiest months (with the highest average wind speed) are February and April (6.6mph).
The calmest months (with the lowest average wind speed) are July and August (4mph).
Average humidity in December
Dayton, TN
- Average humidity in December: 80%
The month with the highest relative humidity is December (80%).
The months with the lowest relative humidity are January, June, July, August, September, October and November (76%).
Average rainfall in December
Dayton, TN
- Average rainfall in December: 3.78"
The wettest month (with the highest rainfall) is July (3.94").
The driest month (with the least rainfall) is November (2.28").
Average rainfall days in December
Dayton, TN
- Average rainfall days in December: 12.5 days
The month with the highest number of rainy days is July (17.9 days).
The month with the least rainy days is November (8.8 days).
Average snowfall in December
Dayton, TN
- Average snowfall in December: 0.43"
The month with the highest snowfall is January (0.67").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Dayton, TN
- Average snowfall days in December: 1.4 days
The month with the highest number of snowfall days is January (2.8 days).
The months with the least snowfall days are May, June, July, August, September and October (0 days).
Average daylight in December /
Average sunshine in December
Dayton, TN
- Average daylight in December: 9h and 5min
The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 48min).
Average sunshine days in December
Dayton, TN
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is November (19.7 days).
The month with the least sunshine days is July (10.8 days).
Average UV index in December
Dayton, TN
- 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 and December (UV index 2).
Average cloud cover in December
Dayton, TN
- Average cloud cover in December: 50
The month with the most cloud cover is February (Cloud cover 53).
The month with the least cloud cover is June (Cloud cover 32).
Average visibility in December
Dayton, TN
- Average visibility in December: 5mi
The months with the highest visibility are February, June, October and November (6mi).
The months with the lowest visibility are January, March, April, May, July, August, September and December (5mi).
Dayton, Tennessee, USA
Weather forecast for your location
2. Allow the app to use your location