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
With an average high-temperature of 29.7°F (-1.3°C) and an average low-temperature of 16.7°F (-8.5°C), December is the coldest month.Humidity
The average relative humidity in December is 77%.Rainfall
In Lead, in December, during 4.2 rainfall days, 0.67" (17mm) of precipitation is typically accumulated. In Lead, during the entire year, the rain falls for 96.1 days and collects up to 14.02" (356mm) of precipitation.Snowfall
Months with snowfall are January through June, September through December. In December, in Lead, it is snowing for 10.1 days. Throughout December, 3.78" (96mm) of snow is accumulated. Throughout the year, in Lead, there are 66.6 snowfall days, and 34.53" (877mm) of snow is accumulated.Daylight
December has the shortest days of the year in Lead, South Dakota, with an average of 8h and 55min of daylight.On the first day of December, sunrise is at 7:10 am and sunset at 4:17 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:25 pm MST.
Sunshine
In December, the average sunshine in Lead, South Dakota, is 6h.UV index
The months with the lowest UV index are January through March, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from unprotected exposure to Sun's UV rays for the average person.Note: The average daily UV index of 2 in December transform into the following instructions:
People with sensitive skin, children, and babies should always be protected from prolonged sun exposure. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
FAQ
What is the coldest month in Lead?
What is the temperature in December in Lead?
What is the average humidity in December in Lead?
How much does it rain in Lead in December?
How much does it snow in Lead in December?
What is the month with the shortest days in Lead?
What is the average length of the day in December in Lead?
When is the sunrise / sunset in December in Lead?
How long on average sun shines in December in Lead?
When is the lowest UV index in Lead?
What is the UV index intensity in December in Lead?
Average temperature in December
Lead, SD
- Average high temperature in December: 29.7°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is December (29.7°F).
- Average low temperature in December: 16.7°F
The month with the highest average low temperature is July (60.4°F).
The coldest month (with the lowest average low temperature) is February (15.4°F).
Average pressure in December
Lead, SD
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Lead, SD
- Average wind speed in December: 9.5mph
The windiest month (with the highest average wind speed) is October (9.9mph).
The calmest month (with the lowest average wind speed) is August (7.6mph).
Average humidity in December
Lead, SD
- Average humidity in December: 77%
The months with the highest relative humidity are January and February (79%).
The months with the lowest relative humidity are August and September (51%).
Average rainfall in December
Lead, SD
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is May (1.93").
The driest month (with the least rainfall) is January (0.55").
Average rainfall days in December
Lead, SD
- Average rainfall days in December: 4.2 days
The month with the highest number of rainy days is June (14.2 days).
The month with the least rainy days is November (2.7 days).
Average snowfall in December
Lead, SD
- Average snowfall in December: 3.78"
The month with the highest snowfall is April (6.54").
The months with the least snowfall are July and August (0").
Average snowfall days in December
Lead, SD
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (11.7 days).
The months with the least snowfall days are July and August (0 days).
Average daylight in December /
Average sunshine in December
Lead, SD
- Average daylight in December: 8h and 55min
The month with the longest days is June (Average daylight: 15h and 28min).
The month with the shortest days is December (Average daylight: 8h and 55min).
- Average sunshine in December: 6h and 0min
The month with the most sunshine is August (Average sunshine: 11h and 42min).
The month with the least sunshine is February (Average sunshine: 5h and 54min).
Average sunshine days in December
Lead, SD
- Average sunshine days in December: 19.5 days
The month with the most sunshine days is November (20.5 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Lead, SD
- Average UV index in December: 2
The month with the highest UV index is July (UV index 6).
The months with the lowest UV index are January, February, March, October, November and December (UV index 2).
Average cloud cover in December
Lead, SD
- Average cloud cover in December: 37
The months with the most cloud cover are February and April (Cloud cover 40).
The month with the least cloud cover is August (Cloud cover 16).
Average visibility in December
Lead, 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).
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