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 distinct shift in the average high-temperature is signaled in December, moving down from a frosty 45.7°F (7.6°C) in November to a freezing cold 29.5°F (-1.4°C). During the month of December, the temperature generally drops to a low average of 17.1°F (-8.3°C).Humidity
In December, the average relative humidity is 82%.Rainfall
In Olivet, in December, it is raining for 2.9 days, with typically 0.98" (25mm) of accumulated precipitation. Throughout the year, there are 106.8 rainfall days, and 19.29" (490mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall. December is the month with the most snowfall in Olivet. Snow falls for 7.5 days and accumulates 2.56" (65mm) of snow.Daylight
With an average of 9h and 0min of daylight, December has the shortest days of the year.On the first day of the month, sunrise is at 7:43 am and sunset at 4:56 pm. On the last day of December, sunrise is at 8:02 am and sunset at 5:05 pm CST.
Sunshine
In December, the average sunshine in Olivet is 4.7h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from unsafe exposure to UV radiation for the ordinary person.Note: In December, the average maximum UV index of 2 translates into the following recommendations:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Midday is the peak time for the Sun's radiation; stay in the shade and protect yourself. Arm yourself against UV rays' harm with protective apparel and UV-filtering shades. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
What is the snowiest month?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Olivet have in December?
What are the months with the lowest UV index?
What is the UV index reading in December in Olivet?
Average temperature in December
Olivet, SD
- Average high temperature in December: 29.5°F
The warmest month (with the highest average high temperature) is July (85.6°F).
The month with the lowest average high temperature is January (26.2°F).
- Average low temperature in December: 17.1°F
The month with the highest average low temperature is July (65.1°F).
The coldest month (with the lowest average low temperature) is January (12.2°F).
Average pressure in December
Olivet, SD
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).
Average wind speed in December
Olivet, SD
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in December
Olivet, SD
- Average humidity in December: 82%
The month with the highest relative humidity is January (85%).
The month with the lowest relative humidity is October (63%).
Average rainfall in December
Olivet, SD
- Average rainfall in December: 0.98"
The wettest month (with the highest rainfall) is May (3.31").
The driest month (with the least rainfall) is February (0.51").
Average rainfall days in December
Olivet, SD
- Average rainfall days in December: 2.9 days
The month with the highest number of rainy days is June (15.8 days).
The month with the least rainy days is January (2.5 days).
Average snowfall in December
Olivet, SD
- Average snowfall in December: 2.56"
The month with the highest snowfall is December (2.56").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Olivet, SD
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is December (7.5 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Olivet, SD
- Average daylight in December: 9h and 0min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 0min).
- Average sunshine in December: 4h 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: 4h and 30min).
Average sunshine days in December
Olivet, SD
- Average sunshine days in December: 21.5 days
The month with the most sunshine days is November (22.8 days).
The month with the least sunshine days is June (11.8 days).
Average UV index in December
Olivet, SD
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Olivet, SD
- Average cloud cover in December: 48
The month with the most cloud cover is January (Cloud cover 51).
The month with the least cloud cover is July (Cloud cover 23).
Average visibility in December
Olivet, SD
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
Olivet, South Dakota, USA
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