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
With the arrival of December, Iowa notices a mild change in the average high-temperature, sliding from November's pleasant 68.9°F (20.5°C) to a comfortable 61.5°F (16.4°C). In the month of December, Iowa's average low-temperature falls to a chilly 48°F (8.9°C).Humidity
The average relative humidity in December in Iowa is 79%.Rainfall
In December, in Iowa, the rain falls for 13.8 days. Throughout December, 3.31" (84mm) of precipitation is accumulated. Throughout the year, there are 182.1 rainfall days, and 39.25" (997mm) of precipitation is accumulated.Snowfall
Months with snowfall are January and December. December is the first month it typically snows in Iowa. Throughout December, in the average 0.1 snowfall days, it receives 0.12" (3mm) of snow. Throughout the year, in Iowa, Louisiana, there are 0.4 snowfall days, and 0.31" (8mm) of snow is accumulated.Daylight
December has the shortest days of the year in Iowa, with an average of 10h and 12min of daylight.On the first day of December, sunrise is at 6:51 am and sunset at 5:11 pm. On the last day of the month, sunrise is at 7:08 am and sunset at 5:22 pm CST.
Sunshine
The month with the least sunshine is December, with an average of 5.1h of sunshine.UV index
The month with the lowest UV index in Iowa is December, with an average maximum UV index of 3. A UV Index reading of 3 to 5 represents a moderate threat to health from exposure to the Sun's UV rays for ordinary individuals.Note: The daily maximum UV index of 3 in December interprets into the following advice:
Ensure safety - Imperative it is to shield skin and eyes from damage. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. To cut down UV radiation exposure by about half, sport a wide-brim hat. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Frequently asked questions
What are the temperatures in Iowa in December?
What is the average humidity in December in Iowa?
How much does it rain in Iowa in December?
When does it start snowing in Iowa?
What is the month with the shortest days in Iowa?
What is the average length of the day in December in Iowa?
When is the sunrise / sunset in December in Iowa?
What is the month with the least sunshine in Iowa?
How long on average sun shines in December in Iowa?
What is the month with the lowest UV index in Iowa?
What is the UV index reading in December in Iowa?
Average temperature in December
Iowa, LA
- Average high temperature in December: 61.5°F
The warmest month (with the highest average high temperature) is August (91.4°F).
The month with the lowest average high temperature is January (59.4°F).
- Average low temperature in December: 48°F
The month with the highest average low temperature is July (75.7°F).
The coldest month (with the lowest average low temperature) is January (44.4°F).
Average pressure in December
Iowa, LA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The months with the lowest atmospheric pressure are June and August (29.94"Hg).
Average wind speed in December
Iowa, LA
- Average wind speed in December: 8.5mph
The windiest month (with the highest average wind speed) is April (9.3mph).
The calmest month (with the lowest average wind speed) is August (6mph).
Average humidity in December
Iowa, LA
- Average humidity in December: 79%
The month with the highest relative humidity is February (81%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Iowa, LA
- Average rainfall in December: 3.31"
The wettest month (with the highest rainfall) is August (5.75").
The driest month (with the least rainfall) is February (2.32").
Average rainfall days in December
Iowa, LA
- Average rainfall days in December: 13.8 days
The month with the highest number of rainy days is August (22.2 days).
The month with the least rainy days is November (10.1 days).
Average snowfall in December
Iowa, LA
- Average snowfall in December: 0.12"
The month with the highest snowfall is January (0.2").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").
Average snowfall days in December
Iowa, LA
- Average snowfall days in December: 0.1 days
The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are February, March, April, May, June, July, August, September, October and November (0 days).
Average daylight in December /
Average sunshine in December
Iowa, LA
- Average daylight in December: 10h and 1min
The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).
- Average sunshine in December: 5h and 1min
The month with the most sunshine is June (Average sunshine: 10h and 36min).
The month with the least sunshine is December (Average sunshine: 5h and 6min).
Average sunshine days in December
Iowa, LA
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (18.5 days).
The month with the least sunshine days is August (7.3 days).
Average UV index in December
Iowa, LA
- Average UV index in December: 3
The months with the highest UV index are May, June, July and August (UV index 7).
The month with the lowest UV index is December (UV index 3).
Average cloud cover in December
Iowa, LA
- Average cloud cover in December: 45
The month with the most cloud cover is February (Cloud cover 48).
The month with the least cloud cover is October (Cloud cover 25).
Average visibility in December
Iowa, LA
- 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).
Iowa, Louisiana, USA
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