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
In December, the average high-temperature decreases from a frosty 46.9°F (8.3°C) in November to a cold 37°F (2.8°C). Flat Rock encounters a small divergence from daytime high temperatures, averaging a low-temperature of 28.8°F (-1.8°C) during December nights.Humidity
In Flat Rock, Ohio, the average relative humidity in December is 82%.Rainfall
In Flat Rock, in December, it is raining for 12.3 days, with typically 1.93" (49mm) of accumulated precipitation. In Flat Rock, during the entire year, the rain falls for 176.1 days and collects up to 31.46" (799mm) of precipitation.Snowfall
Months with snowfall in Flat Rock, Ohio, are January through May, October through December. In Flat Rock, during December, snow falls for 10.5 days and regularly aggregates up to 3.03" (77mm) of snow. Throughout the year, there are 54.2 snowfall days, and 15.67" (398mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:38 am and sunset at 5:03 pm. On the last day of December, sunrise is at 7:56 am and sunset at 5:12 pm EST.
Sunshine
The average sunshine in December is 3.7h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. 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: The UV index of 1 during December leads to these advisories:
Children, infants, and individuals with sensitive skin should be constantly protected from extended sun exposure. To guard against the harmful effects of the Sun, minimize exposure during midday. Outfit yourself in sun-safe attire, like long sleeves, pants, a hat, and UV-blocking sunglasses. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
How cold is December in Flat Rock?
What is the average humidity in December in Flat Rock?
How many days does it rain in December in Flat Rock?
How many days does it snow in December in Flat Rock?
What is the month with the shortest days in Flat Rock?
What is the average length of the day in December in Flat Rock?
When is the sunrise / sunset in December in Flat Rock?
How many hours of sunshine does Flat Rock have in December?
When is the lowest UV index in Flat Rock?
What is the UV index reading in December in Flat Rock?
Average temperature in December
Flat Rock, OH
- Average high temperature in December: 37°F
The warmest month (with the highest average high temperature) is July (78.8°F).
The month with the lowest average high temperature is January (30.6°F).
- Average low temperature in December: 28.8°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Flat Rock, OH
- Average pressure in December: 30.1"Hg
The month with the highest atmospheric pressure is November (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Flat Rock, OH
- Average wind speed in December: 10.8mph
The windiest month (with the highest average wind speed) is January (11.3mph).
The calmest month (with the lowest average wind speed) is July (6.6mph).
Average humidity in December
Flat Rock, OH
- Average humidity in December: 82%
The month with the highest relative humidity is February (85%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Flat Rock, OH
- Average rainfall in December: 1.93"
The wettest month (with the highest rainfall) is June (3.66").
The driest month (with the least rainfall) is February (1.73").
Average rainfall days in December
Flat Rock, OH
- Average rainfall days in December: 12.3 days
The month with the highest number of rainy days is May (19.3 days).
The month with the least rainy days is February (8.8 days).
Average snowfall in December
Flat Rock, OH
- Average snowfall in December: 3.03"
The month with the highest snowfall is February (4.25").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Flat Rock, OH
- Average snowfall days in December: 10.5 days
The month with the highest number of snowfall days is January (14.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Flat Rock, OH
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Flat Rock, OH
- Average sunshine days in December: 11 days
The month with the most sunshine days is November (13.5 days).
The month with the least sunshine days is February (8.8 days).
Average UV index in December
Flat Rock, OH
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Flat Rock, OH
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Flat Rock, OH
- Average visibility in December: 6mi
The months with the highest visibility are March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and February (5mi).
Flat Rock, Ohio, USA
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