December weather forecastMediapolis, IA
December
Weather in December
The first month of the winter, December, is also an icy month in Mediapolis, Iowa, with an average temperature fluctuating between 24.6°F (-4.1°C) and 35.8°F (2.1°C).Temperature
Mediapolis's average high-temperature decreases in December, falling from a frosty 47.8°F (8.8°C) in November to a cold 35.8°F (2.1°C). An average low-temperature of 24.6°F (-4.1°C) marks the month of December.Humidity
The average relative humidity in December is 79%.Rainfall
December is the month with the least rainfall. Rain falls for 6.5 days and accumulates 0.87" (22mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Mediapolis. In Mediapolis, during December, snow falls for 6.2 days and regularly aggregates up to 1.1" (28mm) of snow. Throughout the year, there are 32.5 snowfall days, and 9.57" (243mm) of snow is accumulated.Daylight
The month with the shortest days is December, with an average of 9h and 18min of daylight.On the first day of December, sunrise is at 7:10 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 4:46 pm CST.
Sunshine
The average sunshine in December is 4.5h.UV index
In December, the average daily maximum UV index in Mediapolis is 2. A UV Index reading of 2, and below, represents a minimal health hazard from exposure to the Sun's UV radiation for the average person.Note: A maximum UV index of 2 in December translates into the following recommendations:
Children must always have sun protection, unlike most people, who can tolerate up to an hour in the sun without any burns. The best time to avoid the Sun's harmful UV radiation is during midday when it's most potent. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take heed! The reflection of snow can intensify the Sun's UV radiation nearly double.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Mediapolis, IA
- Average high temperature in December: 35.8°F
The warmest month (with the highest average high temperature) is July (82.4°F).
The month with the lowest average high temperature is January (29.7°F).
- Average low temperature in December: 24.6°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 (17.4°F).
Average pressure in December
Mediapolis, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.9"Hg).
Average wind speed in December
Mediapolis, IA
- Average wind speed in December: 10.1mph
The windiest months (with the highest average wind speed) are January, February, March and April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Mediapolis, IA
- Average humidity in December: 79%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Mediapolis, IA
- Average rainfall in December: 0.87"
The wettest month (with the highest rainfall) is May (3.23").
The driest month (with the least rainfall) is December (0.87").
Average rainfall days in December
Mediapolis, IA
- Average rainfall days in December: 6.5 days
The month with the highest number of rainy days is May (16.7 days).
The month with the least rainy days is January (4.7 days).
Average snowfall in December
Mediapolis, IA
- Average snowfall in December: 1.1"
The month with the highest snowfall is January (3.03").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Mediapolis, IA
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is January (10 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
Mediapolis, IA
- Average daylight in December: 9h and 18min
The month with the longest days is June (Average daylight: 15h and 6min).
The month with the shortest days is December (Average daylight: 9h and 18min).
- Average sunshine in December: 4h and 30min
The month with the most sunshine is July (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 12min).
Average sunshine days in December
Mediapolis, IA
- Average sunshine days in December: 18.5 days
The months with the most sunshine days are October and December (18.5 days).
The month with the least sunshine days is June (10.5 days).
Average UV index in December
Mediapolis, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Mediapolis, IA
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 56).
The month with the least cloud cover is August (Cloud cover 29).
Average visibility in December
Mediapolis, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, August, September, October, November and December (6mi).
The month with the lowest visibility is July (5mi).
