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 beginning of December marks a decrease in the average high-temperature, transitioning from a cool 52°F (11.1°C) in November to a chilly 42.8°F (6°C). During the month of December, the temperature falls to an average of 30.9°F (-0.6°C).Humidity
The months with the highest humidity in Grantsburg, Indiana, are February and December, with an average relative humidity of 81%.Rainfall
In Grantsburg, during December, the rain falls for 8.2 days and regularly aggregates up to 1.38" (35mm) of precipitation. In Grantsburg, during the entire year, the rain falls for 137.1 days and collects up to 20.28" (515mm) of precipitation.Snowfall
January through April, November and December are months with snowfall in Grantsburg, Indiana. In Grantsburg, during December, snow falls for 5 days and regularly aggregates up to 0.59" (15mm) of snow. Throughout the year, there are 23.6 snowfall days, and 3.46" (88mm) of snow is accumulated.Daylight
The month with the shortest days in Grantsburg is December, with an average of 9h and 36min of daylight.On the first day of December in Grantsburg, sunrise is at 7:44 am and sunset at 5:25 pm. On the last day of the month, sunrise is at 8:02 am and sunset at 5:35 pm EST.
Sunshine
December has the least sunshine of the year, with an average of 4.1h of sunshine.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index in Grantsburg, Indiana. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: In December, the maximum UV index of 2 suggests this advice:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. To best shield against UV radiation, choose sun-safe garments and dependable sunglasses. Stay alert! Snow's reflective properties can almost double the UV radiation from the Sun.
Frequently asked questions
How cold does it get in Grantsburg in December?
What is the most humid month in Grantsburg?
What is the average humidity in December in Grantsburg?
How many days does it rain in December in Grantsburg?
How much does it snow in Grantsburg in December?
What is the month with the shortest days in Grantsburg?
How many hours of daylight does Grantsburg have in December?
When are sunrise and sunset in December in Grantsburg?
What is the month with the least sunshine in Grantsburg?
How long on average sun shines in December in Grantsburg?
When is the lowest UV index in Grantsburg?
How high is the UV index in December in Grantsburg?
Average temperature in December
Grantsburg, IN
- Average high temperature in December: 42.8°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 (37.4°F).
- Average low temperature in December: 30.9°F
The month with the highest average low temperature is July (66.2°F).
The coldest month (with the lowest average low temperature) is January (24.4°F).
Average pressure in December
Grantsburg, IN
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.94"Hg).
Average wind speed in December
Grantsburg, IN
- Average wind speed in December: 6.9mph
The windiest months (with the highest average wind speed) are January, February and April (7.5mph).
The calmest months (with the lowest average wind speed) are July and August (4.8mph).
Average humidity in December
Grantsburg, IN
- Average humidity in December: 81%
The months with the highest relative humidity are February and December (81%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Grantsburg, IN
- Average rainfall in December: 1.38"
The wettest month (with the highest rainfall) is July (2.24").
The driest month (with the least rainfall) is September (0.98").
Average rainfall days in December
Grantsburg, IN
- Average rainfall days in December: 8.2 days
The month with the highest number of rainy days is May (16.3 days).
The month with the least rainy days is December (8.2 days).
Average snowfall in December
Grantsburg, IN
- Average snowfall in December: 0.59"
The month with the highest snowfall is February (0.98").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Grantsburg, IN
- Average snowfall days in December: 5 days
The month with the highest number of snowfall days is January (6.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Grantsburg, IN
- Average daylight in December: 9h and 4min
The month with the longest days is June (Average daylight: 14h and 48min).
The month with the shortest days is December (Average daylight: 9h and 36min).
- Average sunshine in December: 4h and 1min
The months with the most sunshine are June and July (Average sunshine: 10h and 0min).
The month with the least sunshine is December (Average sunshine: 4h and 6min).
Average sunshine days in December
Grantsburg, IN
- Average sunshine days in December: 17.9 days
The month with the most sunshine days is October (20.5 days).
The month with the least sunshine days is May (12 days).
Average UV index in December
Grantsburg, IN
- 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
Grantsburg, IN
- Average cloud cover in December: 57
The month with the most cloud cover is January (Cloud cover 58).
The month with the least cloud cover is August (Cloud cover 33).
Average visibility in December
Grantsburg, IN
- Average visibility in December: 5mi
The months with the highest visibility are April, October and November (6mi).
The months with the lowest visibility are January, February, March, May, June, July, August, September and December (5mi).
Grantsburg, Indiana, USA
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