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
Blue Ash's transition into December involves a shift in temperature, receding from a cool 50.9°F (10.5°C) in November to a cold 41°F (5°C). In Blue Ash, the nighttime temperature averages to a subzero cold 29.8°F (-1.2°C) during December.Humidity
January, February and December, with an average relative humidity of 81%, are the most humid months.Rainfall
In Blue Ash, in December, it is raining for 6.5 days, with typically 0.67" (17mm) of accumulated precipitation. In Blue Ash, during the entire year, the rain falls for 95.1 days and collects up to 7.8" (198mm) of precipitation.Snowfall
Months with snowfall are January through April, November and December. In Blue Ash, during December, snow falls for 4.7 days and regularly aggregates up to 0.43" (11mm) of snow. Throughout the year, there are 22.8 snowfall days, and 2.32" (59mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of the month, sunrise is at 7:38 am and sunset at 5:14 pm. On the last day of December, sunrise is at 7:56 am and sunset at 5:24 pm EST.
Sunshine
In Blue Ash, the average sunshine in December is 4.2h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for ordinary individuals.Note: The UV index of 2 during December translates into the following guidance:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. When the Sun is at its strongest around midday, find shade and limit exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. 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
Is December cold in Blue Ash?
What are the most humid months?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Blue Ash have in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
How high is the UV index in December?
Average temperature in December
Blue Ash, OH
- Average high temperature in December: 41°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (35.2°F).
- Average low temperature in December: 29.8°F
The month with the highest average low temperature is July (65.8°F).
The coldest month (with the lowest average low temperature) is January (23.2°F).
Average pressure in December
Blue Ash, OH
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Blue Ash, OH
- Average wind speed in December: 8.2mph
The windiest month (with the highest average wind speed) is January (9mph).
The calmest months (with the lowest average wind speed) are July and August (5.2mph).
Average humidity in December
Blue Ash, OH
- Average humidity in December: 81%
The months with the highest relative humidity are January, February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Blue Ash, OH
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is May (0.94").
The driest month (with the least rainfall) is September (0.31").
Average rainfall days in December
Blue Ash, OH
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is May (10.7 days).
The month with the least rainy days is February (5.6 days).
Average snowfall in December
Blue Ash, OH
- Average snowfall in December: 0.43"
The month with the highest snowfall is January (0.59").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Blue Ash, OH
- Average snowfall days in December: 4.7 days
The month with the highest number of snowfall days is January (6.2 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
Blue Ash, OH
- Average daylight in December: 9h and 3min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 30min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are June, July and August (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Blue Ash, OH
- Average sunshine days in December: 20.9 days
The month with the most sunshine days is October (22.2 days).
The month with the least sunshine days is June (16 days).
Average UV index in December
Blue Ash, OH
- 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, November and December (UV index 2).
Average cloud cover in December
Blue Ash, OH
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Blue Ash, OH
- 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).
Blue Ash, Ohio, USA
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