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
A decrease in the average high-temperature marks December, falling from November's wintry 39.4°F (4.1°C) to a freezing cold 22.6°F (-5.2°C). Marlow experiences an average temperature drop to an extreme cold 12.4°F (-10.9°C) during December nights.Humidity
In December, the average relative humidity is 86%.Rainfall
In Marlow, South Dakota, in December, during 3.3 rainfall days, 0.63" (16mm) of precipitation is typically accumulated. In Marlow, South Dakota, during the entire year, the rain falls for 98.2 days and collects up to 16.26" (413mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Marlow, in December, during 12.8 snowfall days, 2.56" (65mm) of snow is typically accumulated. Throughout the year, in Marlow, there are 57.2 snowfall days, and 13.31" (338mm) of snow is accumulated.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Marlow.On the first day of the month, sunrise is at 7:51 am and sunset at 4:46 pm. On the last day of December, sunrise is at 8:11 am and sunset at 4:54 pm CST.
Sunshine
In Marlow, the average sunshine in December is 3.6h.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 unsafe exposure to UV radiation for the average person.Note: In December, the UV index of 1 transforms into the following advice:
Most people can stay in the Sun for up to 1 hour without burning, apart from children that always must be protected from sun exposure. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
Frequently asked questions
How cold is December in Marlow?
What is the average humidity in December in Marlow?
How much does it rain in Marlow in December?
How much does it snow in Marlow in December?
What is the month with the shortest days in Marlow?
What is the average length of the day in December in Marlow?
When is the sunrise / sunset in December in Marlow?
How many hours of sunshine does Marlow have in December?
What is the month with the lowest UV index in Marlow?
What is the UV index reading in December in Marlow?
Average temperature in December
Marlow, SD
- Average high temperature in December: 22.6°F
The warmest month (with the highest average high temperature) is July (81.7°F).
The month with the lowest average high temperature is January (18.1°F).
- Average low temperature in December: 12.4°F
The month with the highest average low temperature is July (61.9°F).
The coldest month (with the lowest average low temperature) is January (5.2°F).
Average pressure in December
Marlow, 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 (29.86"Hg).
Average wind speed in December
Marlow, SD
- Average wind speed in December: 10.2mph
The windiest months (with the highest average wind speed) are April and October (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (8.1mph).
Average humidity in December
Marlow, SD
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is September (64%).
Average rainfall in December
Marlow, SD
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is July (3.07").
The driest month (with the least rainfall) is February (0.43").
Average rainfall days in December
Marlow, SD
- Average rainfall days in December: 3.3 days
The month with the highest number of rainy days is June (14.3 days).
The month with the least rainy days is January (1.8 days).
Average snowfall in December
Marlow, SD
- Average snowfall in December: 2.56"
The month with the highest snowfall is January (2.83").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Marlow, SD
- Average snowfall days in December: 12.8 days
The month with the highest number of snowfall days is December (12.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Marlow, 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: 3h and 4min
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 30min).
Average sunshine days in December
Marlow, SD
- Average sunshine days in December: 18.2 days
The month with the most sunshine days is November (20 days).
The month with the least sunshine days is June (12.3 days).
Average UV index in December
Marlow, 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
Marlow, SD
- Average cloud cover in December: 60
The month with the most cloud cover is January (Cloud cover 62).
The months with the least cloud cover are July and August (Cloud cover 24).
Average visibility in December
Marlow, 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).
Marlow, South Dakota, USA
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