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 notable decrease in the average high-temperature is observed during December, falling from an icy 40.1°F (4.5°C) in November to a subzero cold 23.7°F (-4.6°C). December brings with it a nighttime average temperature of 12.4°F (-10.9°C) in Florence.Humidity
In Florence, South Dakota, the average relative humidity in December is 87%.Rainfall
In December, the rain falls for 3.5 days. Throughout December, 0.75" (19mm) of precipitation is accumulated. In Florence, South Dakota, during the entire year, the rain falls for 112.3 days and collects up to 18.78" (477mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Florence, South Dakota. The months with the most snowfall in Florence, South Dakota, are January and December, with an average 3.74" (95mm) of accumulated snow.Daylight
The month with the shortest days in Florence is December, with an average of 8h and 48min of daylight.On the first day of December in Florence, sunrise is at 7:48 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 8:07 am and sunset at 4:57 pm CST.
Sunshine
The average sunshine in December in Florence is 4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the ordinary person.Note: In December, the UV index of 1 transforms into the following advice:
While most can endure approximately an hour in the sun without burning, children always require protection from sunlight. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. Fend off the sun's harsh rays with appropriate clothing, a wide-brim hat, and UV-protective sunglasses. Notice this! Nearly double the intensity of the Sun's UV radiation can be caused by snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is it in Florence in December?
What is the average humidity in December in Florence?
How much does it rain in Florence in December?
What is the snowiest month in Florence?
How much does it snow in Florence in December?
What is the month with the shortest days in Florence?
What is the average length of the day in December in Florence?
What time are sunrise and sunset in December in Florence?
How many hours of sunshine does Florence have in December?
When is the lowest UV index in Florence?
What is the UV index reading in December in Florence?
Average temperature in December
Florence, SD
- Average high temperature in December: 23.7°F
The warmest month (with the highest average high temperature) is July (80.8°F).
The month with the lowest average high temperature is January (19.4°F).
- Average low temperature in December: 12.4°F
The month with the highest average low temperature is July (60.8°F).
The coldest month (with the lowest average low temperature) is January (5.5°F).
Average pressure in December
Florence, 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 (29.85"Hg).
Average wind speed in December
Florence, SD
- Average wind speed in December: 11mph
The windiest month (with the highest average wind speed) is April (11.6mph).
The calmest month (with the lowest average wind speed) is July (8.5mph).
Average humidity in December
Florence, SD
- Average humidity in December: 87%
The month with the highest relative humidity is January (90%).
The months with the lowest relative humidity are September and October (68%).
Average rainfall in December
Florence, SD
- Average rainfall in December: 0.75"
The wettest month (with the highest rainfall) is June (3.19").
The driest months (with the least rainfall) are January and February (0.59").
Average rainfall days in December
Florence, SD
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is June (17.2 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Florence, SD
- Average snowfall in December: 3.74"
The months with the highest snowfall are January and December (3.74").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Florence, SD
- Average snowfall days in December: 13 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 and August (0 days).
Average daylight in December /
Average sunshine in December
Florence, 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 0min
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 36min).
Average sunshine days in December
Florence, SD
- Average sunshine days in December: 16.3 days
The month with the most sunshine days is October (19.1 days).
The month with the least sunshine days is June (10.3 days).
Average UV index in December
Florence, 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 and December (UV index 1).
Average cloud cover in December
Florence, SD
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 27).
Average visibility in December
Florence, 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).
Florence, South Dakota, USA
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