December weather forecastRochester, KY
December
Weather in December
The first month of the winter, December, is also a frosty month in Rochester, Kentucky, with an average temperature varying between 34.3°F (1.3°C) and 46.2°F (7.9°C).Temperature
December is characterized by a mild reduction in the average high-temperature, from a fresh 55°F (12.8°C) in November to a chilly 46.2°F (7.9°C). During December nights, Rochester witnesses a consistent average temperature of 34.3°F (1.3°C).Humidity
The months with the highest humidity are February, March, May and December, with an average relative humidity of 79%.Rainfall
In Rochester, in December, during 11.1 rainfall days, 2.32" (59mm) of precipitation is typically accumulated. Throughout the year, there are 162.2 rainfall days, and 29.88" (759mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, October through December. In Rochester, in December, snow falls for 2.1 days, with typically accumulated 0.16" (4mm) of snow. Throughout the year, there are 11.9 snowfall days, and 2.99" (76mm) of snow is accumulated.Daylight
With an average of 9h and 42min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 6:43 am and sunset at 4:30 pm. On the last day of December, sunrise is at 7:01 am and sunset at 4:40 pm CST.
Sunshine
In December, the average sunshine is 4.7h.UV index
January, February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for average individuals.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Babies, children, and individuals with sensitive skin should always have protection against extended sun exposure. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Take into account! The reflection from snow can nearly double the Sun's UV radiation intensity.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Rochester, KY
- Average high temperature in December: 46.2°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 (41°F).
- Average low temperature in December: 34.3°F
The month with the highest average low temperature is July (68°F).
The coldest month (with the lowest average low temperature) is January (27.9°F).
Average pressure in December
Rochester, 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
Rochester, KY
- Average wind speed in December: 7.9mph
The windiest months (with the highest average wind speed) are February and April (8.5mph).
The calmest month (with the lowest average wind speed) is July (5mph).
Average humidity in December
Rochester, 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 (73%).
Average rainfall in December
Rochester, KY
- Average rainfall in December: 2.32"
The wettest month (with the highest rainfall) is April (3.11").
The driest month (with the least rainfall) is September (1.54").
Average rainfall days in December
Rochester, KY
- Average rainfall days in December: 11.1 days
The month with the highest number of rainy days is July (17.7 days).
The month with the least rainy days is November (10.2 days).
Average snowfall in December
Rochester, KY
- Average snowfall in December: 0.16"
The month with the highest snowfall is February (1.42").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rochester, KY
- Average snowfall days in December: 2.1 days
The month with the highest number of snowfall days is January (3.5 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
Rochester, KY
- Average daylight in December: 9h and 42min
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 42min
The months with the most sunshine are June and August (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 24min).
Average sunshine days in December
Rochester, KY
- Average sunshine days in December: 17 days
The months with the most sunshine days are October and November (18.5 days).
The month with the least sunshine days is May (11.3 days).
Average UV index in December
Rochester, 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
Rochester, KY
- Average cloud cover in December: 51
The months with the most cloud cover are January and February (Cloud cover 53).
The months with the least cloud cover are June and August (Cloud cover 28).
Average visibility in December
Rochester, KY
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
