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
The shift from November to December is characterized by a clear decrease in the average high-temperature, reducing from a cold 41.9°F (5.5°C) to a subzero cold 25.7°F (-3.5°C). December nights are marked by an average temperature drop to 14.2°F (-9.9°C).Humidity
In Ramona, the average relative humidity in December is 86%.Rainfall
In Ramona, during December, the rain falls for 3.3 days and regularly aggregates up to 1.02" (26mm) of precipitation. Throughout the year, there are 111.2 rainfall days, and 21.14" (537mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Ramona, in December, during 10.3 snowfall days, 4.21" (107mm) of snow is typically accumulated. Throughout the year, in Ramona, there are 49.4 snowfall days, and 20.04" (509mm) of snow is accumulated.Daylight
The month with the shortest days in Ramona is December, with an average of 8h and 54min of daylight.On the first day of the month, sunrise is at 7:44 am and sunset at 4:51 pm. On the last day of December, in Ramona, South Dakota, sunrise is at 8:03 am and sunset at 5:00 pm CST.
Sunshine
The average sunshine in December in Ramona, South Dakota, is 4.1h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV rays for the average person.Note: The UV index of 1 in December translates into these instructions:
While most individuals can withstand prolonged sun exposure, it is imperative that babies, children, and those with sensitive skin always be shielded. To avoid the Sun's strongest rays, limit exposure around the mid-day period. In the presence of strong sunlight, it's crucial to wear sunglasses that ward off UVA and UVB rays. Note well! The intensity of the Sun's UV rays can be nearly doubled by snow reflection.
Frequently asked questions
How cold is it in Ramona in December?
What is the average humidity in December in Ramona?
How much does it rain in Ramona in December?
How many days does it snow in December in Ramona?
What is the month with the shortest days in Ramona?
How many hours of daylight does Ramona have in December?
When are sunrise and sunset in December in Ramona?
How long on average sun shines in December in Ramona?
What are the months with the lowest UV index in Ramona?
How high is the UV index in December in Ramona?
Average temperature in December
Ramona, SD
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (82.2°F).
The month with the lowest average high temperature is January (22.3°F).
- Average low temperature in December: 14.2°F
The month with the highest average low temperature is July (62.4°F).
The coldest month (with the lowest average low temperature) is January (8.1°F).
Average pressure in December
Ramona, SD
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Ramona, SD
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.6mph).
Average humidity in December
Ramona, SD
- Average humidity in December: 86%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Ramona, SD
- Average rainfall in December: 1.02"
The wettest month (with the highest rainfall) is June (3.23").
The driest month (with the least rainfall) is November (0.59").
Average rainfall days in December
Ramona, SD
- Average rainfall days in December: 3.3 days
The month with the highest number of rainy days is June (18.7 days).
The month with the least rainy days is January (1.6 days).
Average snowfall in December
Ramona, SD
- Average snowfall in December: 4.21"
The month with the highest snowfall is February (4.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ramona, SD
- Average snowfall days in December: 10.3 days
The month with the highest number of snowfall days is January (11.3 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ramona, SD
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 24min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Ramona, SD
- Average sunshine days in December: 19.7 days
The month with the most sunshine days is November (22.4 days).
The month with the least sunshine days is June (9.5 days).
Average UV index in December
Ramona, SD
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Ramona, SD
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 60).
The month with the least cloud cover is July (Cloud cover 28).
Average visibility in December
Ramona, SD
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, July, August, September, October, November and December (6mi).
The month with the lowest visibility is January (5mi).
Ramona, South Dakota, USA
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