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
Missouri Valley's December weather comes with a decrease in average high-temperatures, moving from a chilly 47.7°F (8.7°C) in November to a wintry 33.3°F (0.7°C). Missouri Valley throughout December, experiences an average nighttime temperature of 21.4°F (-5.9°C).Humidity
The average relative humidity in December in Missouri Valley is 78%.Rainfall
In Missouri Valley, in December, during 3.6 rainfall days, 0.91" (23mm) of precipitation is typically accumulated. In Missouri Valley, during the entire year, the rain falls for 108.1 days and collects up to 16.1" (409mm) of precipitation.Snowfall
January through April, October through December are months with snowfall in Missouri Valley, Iowa. In December, it is snowing for 5.7 days. Throughout December, 1.34" (34mm) of snow is accumulated. In Missouri Valley, during the entire year, snow falls for 27.6 days and aggregates up to 7.28" (185mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 12min of daylight.On the first day of December in Missouri Valley, sunrise is at 7:31 am and sunset at 4:54 pm. On the last day of the month, sunrise is at 7:50 am and sunset at 5:03 pm CST.
Sunshine
In Missouri Valley, Iowa, the average sunshine in December is 4.9h.UV index
The months with the lowest UV index in Missouri Valley are January, February, October through December, with an average maximum UV index of 2. A UV Index reading of 2, and below, represents a low health risk from exposure to the Sun's UV radiation for average individuals.Note: A daily maximum UV index of 2 in December translates into the following instructions:
Prolonged sun exposure should always be prevented in babies, children, and those with sensitive skin. When the Sun's UV radiation is most intense during midday, it's best to find shade and limit exposure. For effective sun eye protection, rely on sunglasses certified for UVA and UVB resistance. Heads up! The UV radiation from the Sun can almost be doubled by snow reflection.
Frequently asked questions
How cold is it in Missouri Valley in December?
What is the average humidity in December in Missouri Valley?
How many days does it rain in December in Missouri Valley?
How many days does it snow in December in Missouri Valley?
What is the month with the shortest days in Missouri Valley?
How many hours of daylight does Missouri Valley have in December?
When is the sunrise / sunset in December in Missouri Valley?
How long on average sun shines in December in Missouri Valley?
When is the lowest UV index in Missouri Valley?
How high is the UV index in December in Missouri Valley?
Average temperature in December
Missouri Valley, IA
- Average high temperature in December: 33.3°F
The warmest month (with the highest average high temperature) is July (84.2°F).
The month with the lowest average high temperature is January (28.9°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
Missouri Valley, 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
Missouri Valley, IA
- Average wind speed in December: 9.8mph
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
Missouri Valley, IA
- Average humidity in December: 78%
The month with the highest relative humidity is January (81%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Missouri Valley, IA
- Average rainfall in December: 0.91"
The wettest month (with the highest rainfall) is June (2.68").
The driest month (with the least rainfall) is January (0.39").
Average rainfall days in December
Missouri Valley, IA
- Average rainfall days in December: 3.6 days
The month with the highest number of rainy days is May (14.8 days).
The month with the least rainy days is January (2.4 days).
Average snowfall in December
Missouri Valley, IA
- Average snowfall in December: 1.34"
The month with the highest snowfall is February (1.85").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Missouri Valley, IA
- Average snowfall days in December: 5.7 days
The month with the highest number of snowfall days is January (7.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Missouri Valley, IA
- Average daylight in December: 9h and 1min
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 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
Missouri Valley, IA
- Average sunshine days in December: 22.7 days
The month with the most sunshine days is December (22.7 days).
The month with the least sunshine days is May (13.1 days).
Average UV index in December
Missouri Valley, 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
Missouri Valley, 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 26).
Average visibility in December
Missouri Valley, 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).
Missouri Valley, Iowa, USA
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