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 signals a considerable drop in Frederick's average high-temperature, reducing from an icy 39.9°F (4.4°C) in November to a freezing cold 23.7°F (-4.6°C). Throughout the month of December, Frederick reports a steady low-temperature average of 11.8°F (-11.2°C).Humidity
The average relative humidity in December is 86%.Rainfall
In December, in Frederick, the rain falls for 2.7 days. Throughout December, 0.59" (15mm) of precipitation is accumulated. In Frederick, during the entire year, the rain falls for 92.3 days and collects up to 15.28" (388mm) of precipitation.Snowfall
Months with snowfall in Frederick, South Dakota, are January through May, October through December. The months with the most snowfall are January and December, with an average 2.76" (70mm) of accumulated snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year.On the first day of December in Frederick, sunrise is at 7:55 am and sunset at 4:51 pm. On the last day of the month, sunrise is at 8:15 am and sunset at 4:59 pm CST.
Sunshine
In Frederick, South Dakota, the average sunshine in December is 4h.UV index
The months with the lowest UV index are January, November and December, with an average maximum UV index of 1. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: The maximum daily UV index of 1 in December converts into the following recommendations:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Considering the harmful UV rays from the Sun during midday, it's essential to reduce exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
How cold is it in Frederick in December?
What is the average humidity in December in Frederick?
How many days does it rain in December in Frederick?
What is the snowiest month in Frederick?
How much does it snow in Frederick in December?
What is the month with the shortest days in Frederick?
What is the average length of the day in December in Frederick?
When is the sunrise / sunset in December in Frederick?
How many hours of sunshine does Frederick have in December?
When is the lowest UV index in Frederick?
How high is the UV index in December in Frederick?
Average temperature in December
Frederick, SD
- Average high temperature in December: 23.7°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (19.8°F).
- Average low temperature in December: 11.8°F
The month with the highest average low temperature is July (61.7°F).
The coldest month (with the lowest average low temperature) is January (5.4°F).
Average pressure in December
Frederick, SD
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is February (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Frederick, SD
- Average wind speed in December: 10.2mph
The windiest months (with the highest average wind speed) are April and October (10.7mph).
The calmest month (with the lowest average wind speed) is August (8.2mph).
Average humidity in December
Frederick, SD
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The months with the lowest relative humidity are August and September (61%).
Average rainfall in December
Frederick, SD
- Average rainfall in December: 0.59"
The wettest month (with the highest rainfall) is June (2.83").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Frederick, SD
- Average rainfall days in December: 2.7 days
The month with the highest number of rainy days is June (14.3 days).
The month with the least rainy days is January (1.7 days).
Average snowfall in December
Frederick, SD
- Average snowfall in December: 2.76"
The months with the highest snowfall are January and December (2.76").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Frederick, SD
- Average snowfall days in December: 11.4 days
The month with the highest number of snowfall days is February (11.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Frederick, SD
- Average daylight in December: 8h and 4min
The month with the longest days is June (Average daylight: 15h and 42min).
The month with the shortest days is December (Average daylight: 8h and 42min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 11h and 0min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Frederick, SD
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.8 days).
Average UV index in December
Frederick, 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, November and December (UV index 1).
Average cloud cover in December
Frederick, SD
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The month with the least cloud cover is August (Cloud cover 24).
Average visibility in December
Frederick, SD
- Average visibility in December: 6mi
The months with the highest visibility are February, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January and March (5mi).
Frederick, South Dakota, USA
Weather forecast for your location
2. Allow the app to use your location
