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
December indicates a shift in the average high-temperature, from November's chilly 48°F (8.9°C) to an icy 37.4°F (3°C). An average nighttime temperature of 27.3°F (-2.6°C) is recorded in De Graff, Ohio, during December.Humidity
In December, the average relative humidity in De Graff is 83%.Rainfall
In De Graff, in December, during 5.6 rainfall days, 0.43" (11mm) of precipitation is typically accumulated. In De Graff, Ohio, during the entire year, the rain falls for 82.2 days and collects up to 6.02" (153mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In De Graff, during December, snow falls for 4.4 days and regularly aggregates up to 0.43" (11mm) of snow. In De Graff, during the entire year, snow falls for 21.1 days and aggregates up to 1.85" (47mm) of snow.Daylight
December has the shortest days of the year in De Graff, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:39 am and sunset at 5:10 pm. On the last day of December, in De Graff, sunrise is at 7:58 am and sunset at 5:19 pm EST.
Sunshine
The average sunshine in December in De Graff is 3.9h.UV index
The month with the lowest UV index is December, with an average maximum UV index of 1. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the maximum UV index of 1 suggests these recommendations:
While most people can stay under the sun for an hour without burning, children must always be guarded against sun exposure. The Sun's harshest UV rays are around midday; it's wise to seek shade and limit time outdoors. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
How cold is December in De Graff?
What is the average humidity in December in De Graff?
How many days does it rain in December in De Graff?
How much does it snow in De Graff in December?
What is the month with the shortest days in De Graff?
What is the average length of the day in December in De Graff?
When is the sunrise / sunset in December in De Graff?
How long on average sun shines in December in De Graff?
What is the month with the lowest UV index in De Graff?
What is the UV index reading in December in De Graff?
Average temperature in December
De Graff, OH
- Average high temperature in December: 37.4°F
The warmest month (with the highest average high temperature) is July (79.9°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 27.3°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (19.9°F).
Average pressure in December
De Graff, 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 (29.93"Hg).
Average wind speed in December
De Graff, OH
- Average wind speed in December: 9.8mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest month (with the lowest average wind speed) is August (5.9mph).
Average humidity in December
De Graff, OH
- Average humidity in December: 83%
The month with the highest relative humidity is January (84%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
De Graff, OH
- Average rainfall in December: 0.43"
The wettest month (with the highest rainfall) is June (0.75").
The driest month (with the least rainfall) is September (0.28").
Average rainfall days in December
De Graff, OH
- Average rainfall days in December: 5.6 days
The month with the highest number of rainy days is May (10 days).
The month with the least rainy days is January (3.3 days).
Average snowfall in December
De Graff, OH
- Average snowfall in December: 0.43"
The month with the highest snowfall is February (0.47").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
De Graff, OH
- Average snowfall days in December: 4.4 days
The month with the highest number of snowfall days is January (5.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
De Graff, 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 5min
The month with the most sunshine is July (Average sunshine: 10h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 24min).
Average sunshine days in December
De Graff, OH
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is November (23.7 days).
The month with the least sunshine days is May (17.5 days).
Average UV index in December
De Graff, OH
- Average UV index in December: 1
The months with the highest UV index are June and August (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
De Graff, OH
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 64).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
De Graff, OH
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, October, November and December (6mi).
The months with the lowest visibility are July, August and September (5mi).
De Graff, Ohio, USA
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