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
Observing a mild shift, the average high-temperature during December reduces from November's chilly 48.9°F (9.4°C) to a cold 37.6°F (3.1°C). During the nights in December, the temperature in Indianola averages to a freezing cold 27.5°F (-2.5°C).Humidity
In December, the average relative humidity is 81%.Rainfall
In Indianola, in December, it is raining for 8.8 days, with typically 1.46" (37mm) of accumulated precipitation. Throughout the year, there are 151.8 rainfall days, and 25.63" (651mm) of precipitation is accumulated.Snowfall
Months with snowfall are January through April, November and December. In Indianola, during December, snow falls for 7.9 days and regularly aggregates up to 2.09" (53mm) of snow. In Indianola, during the entire year, snow falls for 35.2 days and aggregates up to 8.82" (224mm) of snow.Daylight
The month with the shortest days is December, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 6:54 am and sunset at 4:26 pm. On the last day of the month, sunrise is at 7:12 am and sunset at 4:36 pm CST.
Sunshine
In Indianola, the average sunshine in December is 4.5h.UV index
The months with the lowest UV index are January, February, November and December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for ordinary individuals.Note: During December, 2 as the daily maximum UV index converts into the following advice:
Despite the majority tolerating prolonged sun exposure, those with sensitive skin, infants, and children demand continual protection. Avoiding direct sunlight during midday hours helps reduce the risk from intense UV radiation. On sunny days, it's ideal to wear sunglasses that filter out UVA and UVB rays. Be aware! The reflective nature of snow can magnify the Sun's UV radiation almost twofold.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is December cold?
What is the average humidity in December?
How many days does it rain in December in Indianola?
How much does it snow in December?
What is the month with the shortest days?
How many hours of daylight does Indianola have in December?
What time are sunrise and sunset in December?
How many hours of sunshine does Indianola have in December?
When is the lowest UV index in Indianola?
How high is the UV index in December?
Average temperature in December
Indianola, IL
- Average high temperature in December: 37.6°F
The warmest month (with the highest average high temperature) is July (81.3°F).
The month with the lowest average high temperature is January (31.6°F).
- Average low temperature in December: 27.5°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 (20.5°F).
Average pressure in December
Indianola, IL
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.14"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Indianola, IL
- Average wind speed in December: 9.7mph
The windiest month (with the highest average wind speed) is January (10.4mph).
The calmest months (with the lowest average wind speed) are July and August (6.2mph).
Average humidity in December
Indianola, IL
- Average humidity in December: 81%
The month with the highest relative humidity is July (84%).
The month with the lowest relative humidity is October (72%).
Average rainfall in December
Indianola, IL
- Average rainfall in December: 1.46"
The wettest month (with the highest rainfall) is April (3.23").
The driest months (with the least rainfall) are February and September (1.38").
Average rainfall days in December
Indianola, IL
- Average rainfall days in December: 8.8 days
The month with the highest number of rainy days is May (18 days).
The month with the least rainy days is February (6.6 days).
Average snowfall in December
Indianola, IL
- Average snowfall in December: 2.09"
The month with the highest snowfall is February (2.64").
The months with the least snowfall are May, June, July, August, September and October (0").
Average snowfall days in December
Indianola, IL
- Average snowfall days in December: 7.9 days
The month with the highest number of snowfall days is January (10.6 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
Indianola, IL
- Average daylight in December: 9h and 2min
The month with the longest days is June (Average daylight: 15h and 0min).
The month with the shortest days is December (Average daylight: 9h and 24min).
- Average sunshine in December: 4h and 3min
The month with the most sunshine is June (Average sunshine: 10h and 6min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Indianola, IL
- Average sunshine days in December: 15.6 days
The month with the most sunshine days is November (18 days).
The month with the least sunshine days is July (9.5 days).
Average UV index in December
Indianola, IL
- 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, November and December (UV index 2).
Average cloud cover in December
Indianola, IL
- Average cloud cover in December: 54
The month with the most cloud cover is January (Cloud cover 58).
The months with the least cloud cover are June, August and September (Cloud cover 32).
Average visibility in December
Indianola, IL
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are July and August (5mi).
Indianola, Illinois, USA
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