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 from November to December sees a distinct decrease in the average high-temperature, dropping from a frosty 44.2°F (6.8°C) to a freezing cold 29.3°F (-1.5°C). Marcus witnesses a consistent average low-temperature of 18.1°F (-7.7°C) throughout December.Humidity
In Marcus, the average relative humidity in December is 83%.Rainfall
In Marcus, during December, the rain falls for 3.5 days and regularly aggregates up to 1.26" (32mm) of precipitation. Throughout the year, there are 116.2 rainfall days, and 22.05" (560mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Marcus. In Marcus, in December, snow falls for 7.9 days, with typically accumulated 1.97" (50mm) of snow. In Marcus, during the entire year, snow falls for 38.2 days and aggregates up to 14.76" (375mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:34 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:53 am and sunset at 4:59 pm CST.
Sunshine
The average sunshine in December is 4.6h.UV index
December is the month with the lowest UV index in Marcus, with an average maximum UV index of 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for the ordinary person.Note: The UV index of 1 during December leads to these advisories:
Unlike children, who always need sun protection, most individuals can remain in the sun for up to an hour without getting burnt. During midday, the Sun's radiation is strongest, and it's advisable to reduce direct exposure. Sunglasses that ward off UVA and UVB rays play a pivotal role in reducing solar eye damage. On your guard! Snow's reflection can almost double the intensity of the Sun's UV radiation.
Frequently asked questions
How cold is December in Marcus?
What is the average humidity in December in Marcus?
How many days does it rain in December in Marcus?
How many days does it snow in December in Marcus?
What is the month with the shortest days in Marcus?
How many hours of daylight does Marcus have in December?
When is the sunrise / sunset in December in Marcus?
How long on average sun shines in December in Marcus?
What is the month with the lowest UV index in Marcus?
How high is the UV index in December in Marcus?
Average temperature in December
Marcus, IA
- Average high temperature in December: 29.3°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in December: 18.1°F
The month with the highest average low temperature is July (64°F).
The coldest month (with the lowest average low temperature) is January (11.7°F).
Average pressure in December
Marcus, IA
- 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 (29.86"Hg).
Average wind speed in December
Marcus, IA
- Average wind speed in December: 10.3mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.7mph).
Average humidity in December
Marcus, IA
- Average humidity in December: 83%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Marcus, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (3.35").
The driest month (with the least rainfall) is January (0.63").
Average rainfall days in December
Marcus, IA
- Average rainfall days in December: 3.5 days
The month with the highest number of rainy days is June (16.9 days).
The month with the least rainy days is February (2.4 days).
Average snowfall in December
Marcus, IA
- Average snowfall in December: 1.97"
The month with the highest snowfall is February (4.09").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Marcus, IA
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Marcus, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 4min
The month with the most sunshine is July (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 6min).
Average sunshine days in December
Marcus, IA
- Average sunshine days in December: 20.8 days
The month with the most sunshine days is November (21.5 days).
The month with the least sunshine days is June (11.7 days).
Average UV index in December
Marcus, IA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is December (UV index 1).
Average cloud cover in December
Marcus, IA
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Marcus, IA
- 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).
Marcus, Iowa, USA
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