December weather forecastMorning Sun, IA
December
Weather in December
December, the first month of the winter in Morning Sun, is also an icy month, with an average temperature fluctuating between 35.4°F (1.9°C) and 24.6°F (-4.1°C).Temperature
The start of December involves a temperature drop, moving from a frosty 47.5°F (8.6°C) in November to a wintry 35.4°F (1.9°C). Throughout the month of December, Morning Sun witnesses an average temperature of 24.6°F (-4.1°C).Humidity
The average relative humidity in December in Morning Sun is 80%.Rainfall
The month with the least rainfall is December, when the rain falls for 7.7 days and typically collects 1.42" (36mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Morning Sun, Iowa, in December, during 7.1 snowfall days, 1.93" (49mm) of snow is typically accumulated. In Morning Sun, Iowa, during the entire year, snow falls for 34.1 days and aggregates up to 14.69" (373mm) of snow.Daylight
With an average of 9h and 18min of daylight, December has the shortest days of the year in Morning Sun.On the first day of December, sunrise is at 7:11 am and sunset at 4:37 pm. On the last day of the month, sunrise is at 7:30 am and sunset at 4:46 pm CST.
Sunshine
In Morning Sun, Iowa, the average sunshine in December is 4.6h.UV index
The average daily maximum UV index in December is 2. A UV Index estimate of 2, and below, represents a minimal health hazard from exposure to the Sun's UV rays for the ordinary person.Note: In December, the UV index of 2 transforms into the following advice:
Apart from children, who require continuous protection, most can endure sun exposure for up to an hour without experiencing burns. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Be informed! The Sun's UV radiation can be nearly doubled due to the reflection from snow.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Average temperature in December
Morning Sun, IA
- Average high temperature in December: 35.4°F
The warmest month (with the highest average high temperature) is July (82°F).
The month with the lowest average high temperature is January (28.9°F).
- Average low temperature in December: 24.6°F
The month with the highest average low temperature is July (64.9°F).
The coldest month (with the lowest average low temperature) is January (16.7°F).
Average pressure in December
Morning Sun, 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
Morning Sun, IA
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is April (10.6mph).
The calmest months (with the lowest average wind speed) are July and August (6.8mph).
Average humidity in December
Morning Sun, IA
- Average humidity in December: 80%
The month with the highest relative humidity is July (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Morning Sun, IA
- Average rainfall in December: 1.42"
The wettest month (with the highest rainfall) is May (4.65").
The driest month (with the least rainfall) is December (1.42").
Average rainfall days in December
Morning Sun, IA
- Average rainfall days in December: 7.7 days
The month with the highest number of rainy days is May (18.8 days).
The month with the least rainy days is January (5.3 days).
Average snowfall in December
Morning Sun, IA
- Average snowfall in December: 1.93"
The month with the highest snowfall is January (4.49").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Morning Sun, IA
- Average snowfall days in December: 7.1 days
The month with the highest number of snowfall days is January (10.1 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
Morning Sun, 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 36min
The month with the most sunshine is July (Average sunshine: 10h and 18min).
The month with the least sunshine is January (Average sunshine: 4h and 18min).
Average sunshine days in December
Morning Sun, IA
- Average sunshine days in December: 17.2 days
The month with the most sunshine days is October (18.4 days).
The month with the least sunshine days is June (8.4 days).
Average UV index in December
Morning Sun, 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
Morning Sun, 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 August (Cloud cover 28).
Average visibility in December
Morning Sun, 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).





