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's onset corresponds with a shift in the average high-temperature, moving from a fresh 52°F (11.1°C) in November to a frosty 43°F (6.1°C). Throughout the month of December, Rosemount reports a steady low-temperature average of 31.1°F (-0.5°C).Humidity
February and December, with an average relative humidity of 81%, are the most humid months in Rosemount.Rainfall
In Rosemount, during December, the rain falls for 13.4 days and regularly aggregates up to 2.95" (75mm) of precipitation. Throughout the year, there are 170.4 rainfall days, and 31.02" (788mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Rosemount. In Rosemount, in December, during 8.4 snowfall days, 2.13" (54mm) of snow is typically accumulated. Throughout the year, in Rosemount, there are 36.7 snowfall days, and 11.57" (294mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 30min of daylight.On the first day of December, sunrise is at 7:31 am and sunset at 5:10 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:20 pm EST.
Sunshine
In Rosemount, Ohio, the average sunshine in December is 4.1h.UV index
The months with the lowest UV index in Rosemount are January, February, November and December, with an average maximum UV index of 2. A UV Index estimate of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Prolonged sun exposure generally does not trouble most people. However, it is vital to ensure protection for babies, children, and individuals with sensitive skin. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. Sun protection is enhanced with clothing that boasts a tight weave yet offers a loose fit. Be on the lookout! Nearly twofold UV radiation from the Sun can be reflected by snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold in Rosemount during December?
What is the most humid month in Rosemount?
What is the average humidity in December in Rosemount?
How many days does it rain in December in Rosemount?
How much does it snow in Rosemount in December?
What is the month with the shortest days in Rosemount?
What is the average length of the day in December in Rosemount?
When is the sunrise / sunset in December in Rosemount?
How long on average sun shines in December in Rosemount?
What are the months with the lowest UV index in Rosemount?
How high is the UV index in December in Rosemount?
Average temperature in December
Rosemount, OH
- Average high temperature in December: 43°F
The warmest month (with the highest average high temperature) is July (86°F).
The month with the lowest average high temperature is January (37.8°F).
- Average low temperature in December: 31.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (24.3°F).
Average pressure in December
Rosemount, OH
- Average pressure in December: 30.14"Hg
The months with the highest atmospheric pressure are January and November (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.96"Hg).
Average wind speed in December
Rosemount, OH
- Average wind speed in December: 7mph
The windiest months (with the highest average wind speed) are January and February (7.5mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).
Average humidity in December
Rosemount, OH
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is August (75%).
Average rainfall in December
Rosemount, OH
- Average rainfall in December: 2.95"
The wettest month (with the highest rainfall) is May (3.19").
The driest month (with the least rainfall) is September (1.85").
Average rainfall days in December
Rosemount, OH
- Average rainfall days in December: 13.4 days
The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is November (10.5 days).
Average snowfall in December
Rosemount, OH
- Average snowfall in December: 2.13"
The month with the highest snowfall is January (3.19").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Rosemount, OH
- Average snowfall days in December: 8.4 days
The month with the highest number of snowfall days is January (10.6 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
Rosemount, OH
- Average daylight in December: 9h and 3min
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 30min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is August (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 3h and 54min).
Average sunshine days in December
Rosemount, OH
- Average sunshine days in December: 11.9 days
The month with the most sunshine days is November (17.3 days).
The month with the least sunshine days is February (10 days).
Average UV index in December
Rosemount, OH
- 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
Rosemount, OH
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is August (Cloud cover 30).
Average visibility in December
Rosemount, OH
- 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).
Rosemount, Ohio, USA
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