December weather forecastBrilliant, OH
December
Weather in December
December in Brilliant, Ohio, is a cold and frosty affair with temperatures dipping sharply between 27.9°F (-2.3°C) to 39.4°F (4.1°C). With the plummeting temperatures, the city decks up for the holiday season. Snowfall becomes a regular feature, blanketing the city in white. Daylight hours are at their shortest, giving way to long, chilly nights. As the year draws to a close, December ushers in the full fury of winter once again.Temperature
December comes with a decrease in the average high-temperature, falling from a frosty 49.1°F (9.5°C) in November to an icy 39.4°F (4.1°C). In the month of December, an average of 27.9°F (-2.3°C) marks the low-temperature in Brilliant, Ohio.Humidity
In December, the average relative humidity is 83%.Rainfall
In Brilliant, in December, it is raining for 12.9 days, with typically 2.91" (74mm) of accumulated precipitation. Throughout the year, there are 182.9 rainfall days, and 33.07" (840mm) of precipitation is accumulated.Snowfall
Months with snowfall in Brilliant, Ohio, are January through April, October through December. In Brilliant, Ohio, during December, snow falls for 11.3 days and regularly aggregates up to 3.19" (81mm) of snow. Throughout the year, in Brilliant, there are 53.3 snowfall days, and 18.39" (467mm) of snow is accumulated.Daylight
The month with the shortest days in Brilliant is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:26 am and sunset at 4:57 pm. On the last day of December, sunrise is at 7:44 am and sunset at 5:06 pm EST.
Sunshine
The average sunshine in December in Brilliant is 3.5h.UV index
December is the month with the lowest UV index, with an average maximum UV index of 1. A UV Index reading of 2, and below, represents a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, a daily UV index of 1 turns into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. Select sunglasses that boast both UVA and UVB protection to limit the adverse effects of the sun on the eyes. Be attentive! The reflective property of snow can nearly double the Sun's UV radiation.
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Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Brilliant, OH
- Average high temperature in December: 39.4°F
The warmest month (with the highest average high temperature) is July (83.7°F).
The month with the lowest average high temperature is January (33.4°F).
- Average low temperature in December: 27.9°F
The month with the highest average low temperature is July (61.5°F).
The coldest month (with the lowest average low temperature) is January (20.7°F).
Average pressure in December
Brilliant, OH
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is November (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).
Average wind speed in December
Brilliant, OH
- Average wind speed in December: 7.3mph
The windiest month (with the highest average wind speed) is January (8mph).
The calmest month (with the lowest average wind speed) is August (4.6mph).
Average humidity in December
Brilliant, OH
- Average humidity in December: 83%
The month with the highest relative humidity is February (85%).
The months with the lowest relative humidity are April, July and August (77%).
Average rainfall in December
Brilliant, OH
- Average rainfall in December: 2.91"
The wettest month (with the highest rainfall) is April (3.5").
The driest month (with the least rainfall) is November (2.17").
Average rainfall days in December
Brilliant, OH
- Average rainfall days in December: 12.9 days
The month with the highest number of rainy days is May (20.5 days).
The month with the least rainy days is November (11.1 days).
Average snowfall in December
Brilliant, OH
- Average snowfall in December: 3.19"
The month with the highest snowfall is January (5.04").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Brilliant, OH
- Average snowfall days in December: 11.3 days
The month with the highest number of snowfall days is January (15.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Brilliant, OH
- Average daylight in December: 9h and 24min
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 30min
The month with the most sunshine is August (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 2h and 54min).
Average sunshine days in December
Brilliant, OH
- Average sunshine days in December: 10.9 days
The month with the most sunshine days is November (16.3 days).
The month with the least sunshine days is January (8.5 days).
Average UV index in December
Brilliant, 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
Brilliant, OH
- Average cloud cover in December: 64
The month with the most cloud cover is January (Cloud cover 68).
The month with the least cloud cover is August (Cloud cover 35).
Average visibility in December
Brilliant, 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 and February (4mi).
