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 arrival sees a clear drop in the average high-temperature, decreasing from November's frosty 43.9°F (6.6°C) to a subzero cold 28.2°F (-2.1°C). Middleburg's nighttime temperature in December falls to an average of 17.1°F (-8.3°C).Humidity
In Middleburg, the average relative humidity in December is 84%.Rainfall
In Middleburg, during December, the rain falls for 5.2 days and regularly aggregates up to 1.26" (32mm) of precipitation. In Middleburg, during the entire year, the rain falls for 120.4 days and collects up to 21.57" (548mm) of precipitation.Snowfall
Months with snowfall in Middleburg are January through May, October through December. In December, it is snowing for 10.1 days. Throughout December, 2.95" (75mm) of snow is accumulated. Throughout the year, there are 47.3 snowfall days, and 18.5" (470mm) of snow is accumulated.Daylight
The month with the shortest days in Middleburg is December, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:36 am and sunset at 4:50 pm. On the last day of December, sunrise is at 7:55 am and sunset at 4:59 pm CST.
Sunshine
In Middleburg, the average sunshine in December is 4.5h.UV index
The months with the lowest UV index are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to the Sun's UV radiation for the ordinary person.Note: In December, a daily maximum UV index of 2 leads to the following instructions:
Most people face no serious problems with extended sun exposure, but those with fair skin, infants, and children always need protection. UV radiation is strongest from the Sun during midday; protect yourself by staying in shaded areas. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December?
How much does it rain in December?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Middleburg have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Middleburg have in December?
When is the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Middleburg, IA
- Average high temperature in December: 28.2°F
The warmest month (with the highest average high temperature) is July (81.5°F).
The month with the lowest average high temperature is January (24.1°F).
- Average low temperature in December: 17.1°F
The month with the highest average low temperature is July (63.5°F).
The coldest month (with the lowest average low temperature) is January (11.1°F).
Average pressure in December
Middleburg, 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
Middleburg, IA
- Average wind speed in December: 10.1mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Middleburg, IA
- Average humidity in December: 84%
The month with the highest relative humidity is January (87%).
The month with the lowest relative humidity is October (67%).
Average rainfall in December
Middleburg, IA
- Average rainfall in December: 1.26"
The wettest month (with the highest rainfall) is June (3.19").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Middleburg, IA
- Average rainfall days in December: 5.2 days
The month with the highest number of rainy days is May (16.9 days).
The month with the least rainy days is February (3.3 days).
Average snowfall in December
Middleburg, IA
- Average snowfall in December: 2.95"
The month with the highest snowfall is February (4.29").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Middleburg, IA
- Average snowfall days in December: 10.1 days
The month with the highest number of snowfall days is January (11.6 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Middleburg, 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 3min
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 0min).
Average sunshine days in December
Middleburg, IA
- Average sunshine days in December: 18.5 days
The month with the most sunshine days is November (19.8 days).
The month with the least sunshine days is June (11.3 days).
Average UV index in December
Middleburg, 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, February, October, November and December (UV index 2).
Average cloud cover in December
Middleburg, 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
Middleburg, IA
- 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).
Middleburg, Iowa, USA
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