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
December's onset brings a clear reduction in the average high-temperature, falling from a chilly 45.1°F (7.3°C) in November to a freezing cold 30.2°F (-1°C). Arthur's average low-temperature during December nights is observed to be 19.9°F (-6.7°C).Humidity
The average relative humidity in December is 81%.Rainfall
In December, in Arthur, Iowa, the rain falls for 3.1 days. Throughout December, 0.51" (13mm) of precipitation is accumulated. Throughout the year, there are 97 rainfall days, and 10.12" (257mm) of precipitation is accumulated.Snowfall
January through April, October through December are months with snowfall in Arthur. In December, it is snowing for 7.2 days. Throughout December, 0.71" (18mm) of snow is accumulated. Throughout the year, in Arthur, there are 30.1 snowfall days, and 4.49" (114mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of December, sunrise is at 7:31 am and sunset at 4:49 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 4:59 pm CST.
Sunshine
The average sunshine in December in Arthur is 4.7h.UV index
In December, the average daily maximum UV index in Arthur is 2. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the ordinary person.Note: A daily high UV index of 2 in December leads to these guidelines:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. To guard against the harmful effects of the Sun, minimize exposure during midday. A hat with a generous brim can prevent nearly 50% of UV rays from reaching your eyes. Forewarned is forearmed! The Sun's UV radiation can be almost doubled in intensity by snow reflection.
Frequently asked questions
How cold is it in Arthur in December?
What is the average humidity in December in Arthur?
How many days does it rain in December in Arthur?
How many days does it snow in December in Arthur?
What is the month with the shortest days in Arthur?
What is the average length of the day in December in Arthur?
What time are sunrise and sunset in December in Arthur?
How many hours of sunshine does Arthur have in December?
How high is the UV index in December in Arthur?
Average temperature in December
Arthur, IA
- Average high temperature in December: 30.2°F
The warmest month (with the highest average high temperature) is July (81.9°F).
The month with the lowest average high temperature is January (25.5°F).
- Average low temperature in December: 19.9°F
The month with the highest average low temperature is July (64.8°F).
The coldest month (with the lowest average low temperature) is January (13.3°F).
Average pressure in December
Arthur, 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 (29.87"Hg).
Average wind speed in December
Arthur, IA
- Average wind speed in December: 10.6mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.5mph).
Average humidity in December
Arthur, IA
- Average humidity in December: 81%
The month with the highest relative humidity is January (84%).
The months with the lowest relative humidity are April and October (67%).
Average rainfall in December
Arthur, IA
- Average rainfall in December: 0.51"
The wettest month (with the highest rainfall) is May (1.57").
The driest month (with the least rainfall) is January (0.24").
Average rainfall days in December
Arthur, IA
- Average rainfall days in December: 3.1 days
The month with the highest number of rainy days is May (13.8 days).
The months with the least rainy days are January and February (2.3 days).
Average snowfall in December
Arthur, IA
- Average snowfall in December: 0.71"
The month with the highest snowfall is February (1.26").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Arthur, IA
- Average snowfall days in December: 7.2 days
The month with the highest number of snowfall days is January (7.7 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
Arthur, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 12min).
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 12min).
Average sunshine days in December
Arthur, IA
- Average sunshine days in December: 22.9 days
The month with the most sunshine days is November (23 days).
The month with the least sunshine days is May (14.2 days).
Average UV index in December
Arthur, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and February (UV index 1).
Average cloud cover in December
Arthur, IA
- Average cloud cover in December: 51
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
Arthur, 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).
Arthur, Iowa, USA
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