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
Stepping into December, Grahn observes a temperature decline, with the average high falling from November's cool 52.9°F (11.6°C) to a frosty 43.7°F (6.5°C). In December, Grahn encounters an average low-temperature of 32°F (0°C) during the night.Humidity
The average relative humidity in December is 80%.Rainfall
The month with the most rainfall is December, when the rain falls for 12.7 days and typically aggregates up to 3.15" (80mm) of precipitation.Snowfall
Months with snowfall in Grahn are January through April, October through December. In December, in Grahn, it is snowing for 7.2 days. Throughout December, 2.17" (55mm) of snow is accumulated. In Grahn, during the entire year, snow falls for 35.9 days and aggregates up to 11.93" (303mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 36min of daylight.On the first day of December, sunrise is at 7:30 am and sunset at 5:12 pm. On the last day of the month, sunrise is at 7:48 am and sunset at 5:22 pm EST.
Sunshine
In December, the average sunshine in Grahn 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 in Grahn. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the UV index of 2 transforms into the following advice:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. To prevent harmful UV exposure, minimize direct contact with the Sun around midday. For optimum UV protection, wear sun-resistant attire complemented with a hat and quality shades. Be cautious! The UV radiation from the Sun can be magnified almost twofold by snow reflection.
Frequently asked questions
Is it cold in Grahn during December?
What is the average humidity in December in Grahn?
What is the wettest month in Grahn?
How many days does it rain in December in Grahn?
How many days does it snow in December in Grahn?
What is the month with the shortest days in Grahn?
What is the average length of the day in December in Grahn?
When is the sunrise / sunset in December in Grahn?
How many hours of sunshine does Grahn have in December?
When is the lowest UV index in Grahn?
How high is the UV index in December in Grahn?
Average temperature in December
Grahn, KY
- Average high temperature in December: 43.7°F
The warmest month (with the highest average high temperature) is July (86.9°F).
The month with the lowest average high temperature is January (38.7°F).
- Average low temperature in December: 32°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (25.5°F).
Average pressure in December
Grahn, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Grahn, KY
- Average wind speed in December: 6.9mph
The windiest month (with the highest average wind speed) is January (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Grahn, KY
- Average humidity in December: 80%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is August (74%).
Average rainfall in December
Grahn, KY
- Average rainfall in December: 3.15"
The wettest month (with the highest rainfall) is December (3.15").
The driest month (with the least rainfall) is September (1.97").
Average rainfall days in December
Grahn, KY
- Average rainfall days in December: 12.7 days
The month with the highest number of rainy days is May (19 days).
The month with the least rainy days is November (10.6 days).
Average snowfall in December
Grahn, KY
- Average snowfall in December: 2.17"
The month with the highest snowfall is January (2.99").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Grahn, KY
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grahn, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are June and August (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Grahn, KY
- Average sunshine days in December: 13.3 days
The month with the most sunshine days is October (16.9 days).
The month with the least sunshine days is February (9.8 days).
Average UV index in December
Grahn, KY
- 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
Grahn, KY
- 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 31).
Average visibility in December
Grahn, KY
- Average visibility in December: 5mi
The months with the highest visibility are March, April, June, October and November (6mi).
The months with the lowest visibility are January, February, May, July, August, September and December (5mi).
Grahn, Kentucky, USA
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