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 meteorological conditions change slightly, with the average high-temperature moving from a cool 55°F (12.8°C) in November to a frosty 46.8°F (8.2°C). The average temperature in Rocky Hill, Kentucky, drops to a wintry 34.3°F (1.3°C) during the night in the month of December.Humidity
February, March, May and December, with an average relative humidity of 79%, are the most humid months in Rocky Hill.Rainfall
In December, the rain falls for 9.6 days. Throughout December, 1.57" (40mm) of precipitation is accumulated. Throughout the year, in Rocky Hill, there are 149.2 rainfall days, and 23.27" (591mm) of precipitation is accumulated.Snowfall
Months with snowfall in Rocky Hill are January through April, November and December. In December, it is snowing for 2.9 days. Throughout December, 0.67" (17mm) of snow is accumulated. Throughout the year, in Rocky Hill, Kentucky, there are 16 snowfall days, and 3.7" (94mm) of snow is accumulated.Daylight
December has the shortest days of the year in Rocky Hill, with an average of 9h and 42min of daylight.On the first day of December, sunrise is at 6:39 am and sunset at 4:27 pm. On the last day of the month, sunrise is at 6:57 am and sunset at 4:37 pm CST.
Sunshine
The average sunshine in December is 4.4h.UV index
The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from unsafe exposure to UV radiation for the ordinary person.Note: The UV index of 2 during December translates into the following guidance:
Although prolonged sun exposure does not typically bother most people, children, babies, and those with sensitive skin should always have protection. The Sun's UV radiation is especially harmful around midday, so reduce exposure and stay safe. Protect your eyes, ears, face, and neck from the Sun by wearing a wide-brimmed hat. Observe! Snow reflection can nearly intensify the Sun's UV radiation twofold.
Frequently asked questions
What is the temperature in December in Rocky Hill?
What is the most humid month in Rocky Hill?
What is the average humidity in December in Rocky Hill?
How much does it rain in Rocky Hill in December?
How much does it snow in Rocky Hill in December?
What is the month with the shortest days in Rocky Hill?
How many hours of daylight does Rocky Hill have in December?
When are sunrise and sunset in December in Rocky Hill?
How long on average sun shines in December in Rocky Hill?
What is the month with the lowest UV index in Rocky Hill?
How high is the UV index in December in Rocky Hill?
Average temperature in December
Rocky Hill, KY
- Average high temperature in December: 46.8°F
The warmest month (with the highest average high temperature) is July (86.2°F).
The month with the lowest average high temperature is January (41.5°F).
- Average low temperature in December: 34.3°F
The month with the highest average low temperature is July (67.3°F).
The coldest month (with the lowest average low temperature) is January (28°F).
Average pressure in December
Rocky Hill, KY
- Average pressure in December: 30.14"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Rocky Hill, KY
- Average wind speed in December: 7.7mph
The windiest month (with the highest average wind speed) is February (8.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.1mph).
Average humidity in December
Rocky Hill, KY
- Average humidity in December: 79%
The months with the highest relative humidity are February, March, May and December (79%).
The month with the lowest relative humidity is October (75%).
Average rainfall in December
Rocky Hill, KY
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is July (2.87").
The driest months (with the least rainfall) are September and November (1.34").
Average rainfall days in December
Rocky Hill, KY
- Average rainfall days in December: 9.6 days
The month with the highest number of rainy days is July (17.8 days).
The month with the least rainy days is November (8.1 days).
Average snowfall in December
Rocky Hill, KY
- Average snowfall in December: 0.67"
The month with the highest snowfall is February (1.18").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Rocky Hill, KY
- Average snowfall days in December: 2.9 days
The month with the highest number of snowfall days is January (4.8 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Rocky Hill, KY
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 42min).
- Average sunshine in December: 4h and 2min
The month with the most sunshine is August (Average sunshine: 10h and 18min).
The month with the least sunshine is February (Average sunshine: 4h and 6min).
Average sunshine days in December
Rocky Hill, KY
- Average sunshine days in December: 18 days
The month with the most sunshine days is November (20.1 days).
The month with the least sunshine days is July (11.4 days).
Average UV index in December
Rocky Hill, 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 and December (UV index 2).
Average cloud cover in December
Rocky Hill, KY
- Average cloud cover in December: 54
The months with the most cloud cover are January and February (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 31).
Average visibility in December
Rocky Hill, KY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is May (5mi).
Rocky Hill, Kentucky, USA
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