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 December, the meteorological conditions markedly change with the average high-temperature descending from a chilly 47.5°F (8.6°C) in November to a wintry 32.9°F (0.5°C). Magnolia reports an average low-temperature of 21.4°F (-5.9°C) during the nights of December.Humidity
In Magnolia, the average relative humidity in December is 79%.Rainfall
In Magnolia, in December, it is raining for 4.5 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 123.1 rainfall days, and 23.39" (594mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through May, October through December. In Magnolia, during December, snow falls for 6.8 days and regularly aggregates up to 2.36" (60mm) of snow. In Magnolia, during the entire year, snow falls for 32.8 days and aggregates up to 13.23" (336mm) of snow.Daylight
With an average of 9h and 12min of daylight, December has the shortest days of the year.On the first day of December, sunrise is at 7:31 am and sunset at 4:53 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:03 pm CST.
Sunshine
The average sunshine in December is 4.9h.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 of 2, and less, symbolizes a low health risk from unprotected exposure to Sun's UV rays for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Despite most people tolerating extended sun exposure, it is critical to always protect those with sensitive skin, infants, and children. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Limit sun-induced ocular harm with sunglasses that feature UVA and UVB filtration. Caution! The reflection of snow can nearly double the intensity of the Sun's UV radiation.
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 many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
When is the sunrise / sunset in December?
How long on average sun shines in December?
What is the month with the lowest UV index?
What is the UV index intensity in December?
Average temperature in December
Magnolia, IA
- Average high temperature in December: 32.9°F
The warmest month (with the highest average high temperature) is July (83.8°F).
The month with the lowest average high temperature is January (28.6°F).
- Average low temperature in December: 21.4°F
The month with the highest average low temperature is July (65.5°F).
The coldest month (with the lowest average low temperature) is January (15.3°F).
Average pressure in December
Magnolia, 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
Magnolia, IA
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is April (10.7mph).
The calmest month (with the lowest average wind speed) is July (7.1mph).
Average humidity in December
Magnolia, IA
- Average humidity in December: 79%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Magnolia, IA
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is May (3.74").
The driest month (with the least rainfall) is January (0.71").
Average rainfall days in December
Magnolia, IA
- Average rainfall days in December: 4.5 days
The month with the highest number of rainy days is May (17 days).
The month with the least rainy days is February (2.7 days).
Average snowfall in December
Magnolia, IA
- Average snowfall in December: 2.36"
The month with the highest snowfall is February (3.58").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Magnolia, IA
- Average snowfall days in December: 6.8 days
The month with the highest number of snowfall days is January (8.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Magnolia, 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 12min).
- Average sunshine in December: 4h and 5min
The month with the most sunshine is July (Average sunshine: 10h and 36min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).
Average sunshine days in December
Magnolia, IA
- Average sunshine days in December: 21.7 days
The month with the most sunshine days is December (21.7 days).
The month with the least sunshine days is June (10.7 days).
Average UV index in December
Magnolia, IA
- 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, October, November and December (UV index 2).
Average cloud cover in December
Magnolia, IA
- Average cloud cover in December: 46
The month with the most cloud cover is January (Cloud cover 50).
The month with the least cloud cover is July (Cloud cover 25).
Average visibility in December
Magnolia, 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).
Magnolia, Iowa, USA
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