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
In De Kalb, the beginning of December is marked by a lowered average high-temperature, shifting from November's cool 51.6°F (10.9°C) to a wintry 39.4°F (4.1°C). During December, De Kalb's temperature averages to a subzero cold 25.9°F (-3.4°C) at night.Humidity
The average relative humidity in December in De Kalb is 74%.Rainfall
In De Kalb, in December, it is raining for 5.2 days, with typically 0.87" (22mm) of accumulated precipitation. In De Kalb, during the entire year, the rain falls for 125.3 days and collects up to 23.94" (608mm) of precipitation.Snowfall
Months with snowfall in De Kalb are January through May, October through December. In De Kalb, Missouri, in December, snow falls for 3.9 days, with typically accumulated 1.1" (28mm) of snow. Throughout the year, there are 19.9 snowfall days, and 7.87" (200mm) of snow is accumulated.Daylight
The month with the shortest days in De Kalb is December, with an average of 9h and 24min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:56 pm. On the last day of December, in De Kalb, sunrise is at 7:40 am and sunset at 5:05 pm CST.
Sunshine
In December, the average sunshine in De Kalb is 5.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.Note: The UV index of 2 in December translates into these instructions:
Extended exposure to the sun should always be avoided by children, infants, and those with sensitive skin. Solar radiation is at its peak intensity during midday, so it's advisable to stay indoors or in the shade. In bright sunlight, prioritize sunglasses that grant protection from UVA and UVB radiation. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Frequently asked questions
Is December cold in De Kalb?
What is the average humidity in December in De Kalb?
How much does it rain in De Kalb in December?
How many days does it snow in December in De Kalb?
What is the month with the shortest days in De Kalb?
How many hours of daylight does De Kalb have in December?
When is the sunrise / sunset in December in De Kalb?
How long on average sun shines in December in De Kalb?
What is the month with the lowest UV index in De Kalb?
What is the UV index intensity in December in De Kalb?
Average temperature in December
De Kalb, MO
- Average high temperature in December: 39.4°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 (36°F).
- Average low temperature in December: 25.9°F
The month with the highest average low temperature is July (68.2°F).
The coldest month (with the lowest average low temperature) is January (21.2°F).
Average pressure in December
De Kalb, MO
- Average pressure in December: 30.13"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
De Kalb, MO
- Average wind speed in December: 9.4mph
The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest months (with the lowest average wind speed) are July and August (6.6mph).
Average humidity in December
De Kalb, MO
- Average humidity in December: 74%
The months with the highest relative humidity are May and June (78%).
The months with the lowest relative humidity are October and November (69%).
Average rainfall in December
De Kalb, MO
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is May (3.58").
The driest month (with the least rainfall) is January (0.79").
Average rainfall days in December
De Kalb, MO
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is May (15.9 days).
The month with the least rainy days is January (3.7 days).
Average snowfall in December
De Kalb, MO
- Average snowfall in December: 1.1"
The month with the highest snowfall is February (2.56").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
De Kalb, MO
- Average snowfall days in December: 3.9 days
The month with the highest number of snowfall days is February (5.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
De Kalb, MO
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 14h and 54min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 5h and 3min
The months with the most sunshine are June and July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 5h and 6min).
Average sunshine days in December
De Kalb, MO
- Average sunshine days in December: 22.4 days
The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (12.6 days).
Average UV index in December
De Kalb, MO
- Average UV index in December: 2
The months with the highest UV index are May, 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
De Kalb, MO
- Average cloud cover in December: 41
The month with the most cloud cover is March (Cloud cover 46).
The months with the least cloud cover are July and August (Cloud cover 27).
Average visibility in December
De Kalb, MO
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
The months with the lowest visibility are January, February, March, April, May, June, July, August, September, October, November and December (6mi).
De Kalb, Missouri, USA
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