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
With the onset of December, Old Washington experiences a modest temperature adjustment, with the average high-temperature receding from a frosty 49.8°F (9.9°C) in November to a wintry 40.3°F (4.6°C). Old Washington's temperature tends to fall to an average low of 28.6°F (-1.9°C) during the nights of December.Humidity
The average relative humidity in December in Old Washington is 83%.Rainfall
In Old Washington, in December, during 8.7 rainfall days, 0.94" (24mm) of precipitation is typically accumulated. Throughout the year, there are 123.8 rainfall days, and 11.3" (287mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Old Washington, in December, during 7.5 snowfall days, 0.75" (19mm) of snow is typically accumulated. In Old Washington, during the entire year, snow falls for 39 days and aggregates up to 5.28" (134mm) 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 7:29 am and sunset at 5:00 pm. On the last day of December, in Old Washington, Ohio, sunrise is at 7:47 am and sunset at 5:10 pm EST.
Sunshine
In December, the average sunshine is 3.6h.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 of 2, and less, symbolizes a low health risk from exposure to the Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December leads to these instructions:
For the majority, extended sun exposure is not of great concern. Infants and people with sensitive skin must always be protected. Around midday, solar radiation is most harmful; hence, exposure should be limited. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold does it get in December?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When are sunrise and sunset in December?
How many hours of sunshine does Old Washington have in December?
What is the month with the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Old Washington, OH
- Average high temperature in December: 40.3°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (34°F).
- Average low temperature in December: 28.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (20.8°F).
Average pressure in December
Old Washington, OH
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is November (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Old Washington, OH
- Average wind speed in December: 7mph
The windiest month (with the highest average wind speed) is January (7.6mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Old Washington, OH
- Average humidity in December: 83%
The months with the highest relative humidity are January and February (84%).
The months with the lowest relative humidity are April, June, July, August and November (77%).
Average rainfall in December
Old Washington, OH
- Average rainfall in December: 0.94"
The wettest month (with the highest rainfall) is June (1.26").
The driest months (with the least rainfall) are September and November (0.67").
Average rainfall days in December
Old Washington, OH
- Average rainfall days in December: 8.7 days
The month with the highest number of rainy days is May (14.7 days).
The month with the least rainy days is November (6.7 days).
Average snowfall in December
Old Washington, OH
- Average snowfall in December: 0.75"
The month with the highest snowfall is February (1.38").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Old Washington, OH
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (11.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Old Washington, OH
- 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 4min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Old Washington, OH
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is November (20.4 days).
The month with the least sunshine days is February (13.6 days).
Average UV index in December
Old Washington, OH
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Old Washington, OH
- Average cloud cover in December: 63
The month with the most cloud cover is January (Cloud cover 67).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Old Washington, OH
- Average visibility in December: 5mi
The months with the highest visibility are April and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September, October and December (5mi).
Old Washington, Ohio, USA
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