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
Herreid's December weather is marked by a distinct drop in high-temperatures, declining from a wintry 41.5°F (5.3°C) in November to a subzero cold 25.7°F (-3.5°C). Herreid, in December, witnesses an average low-temperature of 14.4°F (-9.8°C).Humidity
The average relative humidity in December in Herreid is 83%.Rainfall
In December, the rain falls for 2.7 days. Throughout December, 0.67" (17mm) of precipitation is accumulated. Throughout the year, there are 89.4 rainfall days, and 15.39" (391mm) of precipitation is accumulated.Snowfall
Months with snowfall in Herreid, South Dakota, are January through May, October through December. In Herreid, during December, snow falls for 9.5 days and regularly aggregates up to 3.39" (86mm) of snow. In Herreid, during the entire year, snow falls for 49.4 days and aggregates up to 19.09" (485mm) of snow.Daylight
With an average of 8h and 42min of daylight, December has the shortest days of the year in Herreid.On the first day of the month, sunrise is at 8:01 am and sunset at 4:57 pm. On the last day of December, in Herreid, sunrise is at 8:21 am and sunset at 5:05 pm CST.
Sunshine
In December, the average sunshine is 4.5h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index in Herreid, South Dakota. A UV Index estimate of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: The UV index of 1 during December translates into the following guidance:
Extended time in the sun generally does not harm most, but those with sensitive skin, infants, and children should always be protected. Avoiding the Sun's peak radiation during midday hours is essential for health and safety. Opt for tightly woven and loose clothing to enhance protection from the Sun. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.
Frequently asked questions
How cold is December in Herreid?
What is the average humidity in December in Herreid?
How much does it rain in Herreid in December?
How many days does it snow in December in Herreid?
What is the month with the shortest days in Herreid?
How many hours of daylight does Herreid have in December?
When are sunrise and sunset in December in Herreid?
How many hours of sunshine does Herreid have in December?
When is the lowest UV index in Herreid?
How high is the UV index in December in Herreid?
Average temperature in December
Herreid, 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
Herreid, 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
Herreid, 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
Herreid, 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
Herreid, 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
Herreid, 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
Herreid, 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
Herreid, 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
Herreid, 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: 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
Herreid, 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
Herreid, 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
Herreid, 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
Herreid, 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).
Herreid, South Dakota, USA
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