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
As Andover welcomes December, there is a noticeable shift in the average high-temperature, dropping from November's icy 38.8°F (3.8°C) to a freezing cold 23.2°F (-4.9°C). During the nights in December, Andover experiences a consistent average temperature of 11.5°F (-11.4°C).Humidity
In Andover, the average relative humidity in December is 88%.Rainfall
In December, the rain falls for 4.1 days. Throughout December, 0.98" (25mm) of precipitation is accumulated. In Andover, during the entire year, the rain falls for 112.9 days and collects up to 22.09" (561mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Andover, South Dakota. December is the month with the most snowfall in Andover. Snow falls for 14.6 days and accumulates 4.53" (115mm) of snow.Daylight
The month with the shortest days in Andover is December, with an average of 8h and 48min of daylight.On the first day of December in Andover, sunrise is at 7:51 am and sunset at 4:50 pm. On the last day of the month, sunrise is at 8:11 am and sunset at 4:58 pm CST.
Sunshine
The average sunshine in December in Andover, South Dakota, is 3.6h.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 value of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: In December, a regular UV index of 1 translates into these guidelines:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. For health reasons, it's advisable to reduce direct sun exposure during peak hours around midday. A wide-brimmed hat is a staple for defending the face, eyes, ears, and neck from the Sun. 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
How cold is it in Andover in December?
What is the average humidity in December in Andover?
How many days does it rain in December in Andover?
What is the snowiest month in Andover?
How much does it snow in Andover in December?
What is the month with the shortest days in Andover?
What is the average length of the day in December in Andover?
When are sunrise and sunset in December in Andover?
How long on average sun shines in December in Andover?
What are the months with the lowest UV index in Andover?
What is the UV index intensity in December in Andover?
Average temperature in December
Andover, SD
- Average high temperature in December: 23.2°F
The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (18.9°F).
- Average low temperature in December: 11.5°F
The month with the highest average low temperature is July (61.3°F).
The coldest month (with the lowest average low temperature) is January (5°F).
Average pressure in December
Andover, 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
Andover, SD
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is April (11.7mph).
The calmest month (with the lowest average wind speed) is July (8.7mph).
Average humidity in December
Andover, SD
- Average humidity in December: 88%
The month with the highest relative humidity is January (91%).
The month with the lowest relative humidity is September (66%).
Average rainfall in December
Andover, SD
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is July (3.58").
The driest month (with the least rainfall) is November (0.63").
Average rainfall days in December
Andover, SD
- Average rainfall days in December: 4.1 days
The month with the highest number of rainy days is June (17.9 days).
The month with the least rainy days is February (2.3 days).
Average snowfall in December
Andover, SD
- Average snowfall in December: 4.53"
The month with the highest snowfall is December (4.53").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Andover, SD
- Average snowfall days in December: 14.6 days
The month with the highest number of snowfall days is January (15.1 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Andover, SD
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 36min).
The month with the shortest days is December (Average daylight: 8h and 48min).
- Average sunshine in December: 3h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 42min).
The month with the least sunshine is January (Average sunshine: 3h and 12min).
Average sunshine days in December
Andover, SD
- Average sunshine days in December: 15.2 days
The month with the most sunshine days is November (19.5 days).
The month with the least sunshine days is June (10.4 days).
Average UV index in December
Andover, 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
Andover, SD
- Average cloud cover in December: 62
The month with the most cloud cover is January (Cloud cover 66).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
Andover, SD
- Average visibility in December: 5mi
The months with the highest visibility are April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January, February, March and December (5mi).
Andover, South Dakota, USA
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