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
The shift into December is characterized by a noticeable reduction in the average high-temperature, decreasing from November's wintry 41.2°F (5.1°C) to a freezing cold 25.7°F (-3.5°C). In December, Bruce's temperature tends to fall to an average low of 13.6°F (-10.2°C) during the night.Humidity
In December, the average relative humidity is 86%.Rainfall
In Bruce, during December, the rain falls for 5.1 days and regularly aggregates up to 1.1" (28mm) of precipitation. In Bruce, during the entire year, the rain falls for 125.5 days and collects up to 21.65" (550mm) of precipitation.Snowfall
Months with snowfall are January through May, October through December. In Bruce, in December, snow falls for 13.3 days, with typically accumulated 4.65" (118mm) of snow. In Bruce, during the entire year, snow falls for 61.5 days and aggregates up to 21.38" (543mm) of snow.Daylight
December has the shortest days of the year, with an average of 8h and 54min of daylight.On the first day of December in Bruce, sunrise is at 7:44 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 8:03 am and sunset at 4:58 pm CST.
Sunshine
In Bruce, the average sunshine in December is 4.2h.UV index
The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a low threat to health from exposure to the Sun's UV radiation for ordinary individuals.Note: The UV index of 2 in December translates into these instructions:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The midday Sun can be harmful due to its potent UV radiation; seek shade and reduce exposure. Employ a wide-brim hat for potent defense against up to 50% of UV rays. Beware! Reflection from snow can magnify the Sun's UV radiation nearly twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in December?
What is the average humidity in December?
How many days does it rain in December in Bruce?
How much 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 in Bruce?
How long on average sun shines in December in Bruce?
What is the UV index intensity in December?
Average temperature in December
Bruce, SD
- Average high temperature in December: 25.7°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (20.7°F).
- Average low temperature in December: 13.6°F
The month with the highest average low temperature is July (62.2°F).
The coldest month (with the lowest average low temperature) is January (7°F).
Average pressure in December
Bruce, 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 (29.86"Hg).
Average wind speed in December
Bruce, SD
- Average wind speed in December: 10.7mph
The windiest month (with the highest average wind speed) is April (11.5mph).
The calmest month (with the lowest average wind speed) is July (8.4mph).
Average humidity in December
Bruce, SD
- Average humidity in December: 86%
The month with the highest relative humidity is January (90%).
The month with the lowest relative humidity is October (68%).
Average rainfall in December
Bruce, SD
- Average rainfall in December: 1.1"
The wettest month (with the highest rainfall) is June (3.46").
The driest month (with the least rainfall) is November (0.67").
Average rainfall days in December
Bruce, SD
- Average rainfall days in December: 5.1 days
The month with the highest number of rainy days is June (19.8 days).
The month with the least rainy days is January (3.2 days).
Average snowfall in December
Bruce, SD
- Average snowfall in December: 4.65"
The month with the highest snowfall is February (4.69").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Bruce, SD
- Average snowfall days in December: 13.3 days
The month with the highest number of snowfall days is January (14.4 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Bruce, SD
- Average daylight in December: 8h and 5min
The month with the longest days is June (Average daylight: 15h and 30min).
The month with the shortest days is December (Average daylight: 8h and 54min).
- Average sunshine in December: 4h and 1min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 3h and 48min).
Average sunshine days in December
Bruce, SD
- Average sunshine days in December: 16.1 days
The month with the most sunshine days is November (18.9 days).
The month with the least sunshine days is June (8.3 days).
Average UV index in December
Bruce, SD
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Bruce, SD
- Average cloud cover in December: 56
The month with the most cloud cover is January (Cloud cover 59).
The months with the least cloud cover are July and August (Cloud cover 28).
Average visibility in December
Bruce, 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).
Bruce, South Dakota, USA
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