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 is marked by a significant decrease, with the average high-temperature retreating from a wintry 41.5°F (5.3°C) in November to a subzero cold 25.7°F (-3.5°C). Nighttime temperatures in Glencross, South Dakota, consistently average a still freezing cold 14.4°F (-9.8°C) during December.Humidity
The average relative humidity in December in Glencross is 83%.Rainfall
In December, the rain falls for 2.7 days. Throughout December, 0.67" (17mm) of precipitation is accumulated. In Glencross, South Dakota, during the entire year, the rain falls for 89.4 days and collects up to 15.39" (391mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Glencross, South Dakota. In Glencross, in December, snow falls for 9.5 days, with typically accumulated 3.39" (86mm) of snow. In Glencross, during the entire year, snow falls for 49.4 days and aggregates up to 19.09" (485mm) of snow.Daylight
December has the shortest days of the year in Glencross, with an average of 8h and 48min of daylight.On the first day of the month, sunrise is at 7:03 am and sunset at 4:02 pm. On the last day of December, sunrise is at 7:23 am and sunset at 4:10 pm MST.
Sunshine
In Glencross, the average sunshine in December is 4.5h.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 minimal health vulnerability from unprotected exposure to Sun's UV rays for the average person.Note: A typical high UV index of 1 in December suggests the following recommendations:
Extended sun exposure is not an issue for the majority. Children, infants, and fair-skinned individuals always need to be protected. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. It's wise to wear UVA and UVB-blocking sunglasses when the sun shines brightly. Mark this! Snow reflection can nearly double the UV radiation intensity from the Sun.
Frequently asked questions
How cold is December in Glencross?
What is the average humidity in December in Glencross?
How much does it rain in Glencross in December?
How many days does it snow in December in Glencross?
What is the month with the shortest days in Glencross?
How many hours of daylight does Glencross have in December?
When is the sunrise / sunset in December in Glencross?
How many hours of sunshine does Glencross have in December?
What are the months with the lowest UV index in Glencross?
What is the UV index intensity in December in Glencross?
Average temperature in December
Glencross, SD
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (86.4°F).
The month with the lowest average high temperature is January (23°F).
- Average low temperature in December: 14.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (9°F).
Average pressure in December
Glencross, SD
- Average pressure in December: 30.13"Hg
The months with the highest atmospheric pressure are January and February (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.84"Hg).
Average wind speed in December
Glencross, SD
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is February (9.4mph).
Average humidity in December
Glencross, SD
- Average humidity in December: 83%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is August (52%).
Average rainfall in December
Glencross, SD
- Average rainfall in December: 0.67"
The wettest month (with the highest rainfall) is June (2.32").
The driest month (with the least rainfall) is January (0.47").
Average rainfall days in December
Glencross, SD
- Average rainfall days in December: 2.7 days
The month with the highest number of rainy days is June (13.8 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Glencross, SD
- Average snowfall in December: 3.39"
The month with the highest snowfall is February (3.98").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Glencross, SD
- Average snowfall days in December: 9.5 days
The month with the highest number of snowfall days is January (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
Glencross, 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: 4h and 3min
The month with the most sunshine is July (Average sunshine: 11h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Glencross, SD
- Average sunshine days in December: 20.1 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (13.6 days).
Average UV index in December
Glencross, SD
- Average UV index in December: 1
The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Glencross, SD
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 56).
The months with the least cloud cover are July and August (Cloud cover 21).
Average visibility in December
Glencross, 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).
Glencross, South Dakota, USA
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