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
The onset of December comes with a shift in the average high-temperature, falling from a frosty 47.8°F (8.8°C) in November to an icy 34.9°F (1.6°C). During December, the temperature tends to dip to an average of 22.8°F (-5.1°C) at night.Humidity
In December, the average relative humidity is 79%.Rainfall
December is the month with the least rainfall. Rain falls for 4.9 days and accumulates 0.63" (16mm) of precipitation.Snowfall
January through May, October through December are months with snowfall in Osceola. In December, in Osceola, it is snowing for 6.2 days. Throughout December, 1.22" (31mm) of snow is accumulated. Throughout the year, in Osceola, there are 30.8 snowfall days, and 11.77" (299mm) of snow is accumulated.Daylight
December has the shortest days of the year in Osceola, with an average of 9h and 18min of daylight.On the first day of the month, sunrise is at 7:21 am and sunset at 4:47 pm. On the last day of December, in Osceola, sunrise is at 7:39 am and sunset at 4:56 pm CST.
Sunshine
The average sunshine in December in Osceola is 4.7h.UV index
The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV radiation for the average person.Note: The maximum daily UV index of 2 during December translates into the following directions:
Infants, children, and people with sensitive skin should always have protection against lengthy periods of sun exposure. The midday Sun can be dangerous due to its intense radiation; always find shade and reduce exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Remember! The Sun's UV radiation can be magnified almost twofold by the reflection of snow.
Frequently asked questions
How cold is December in Osceola?
What is the average humidity in December in Osceola?
What is the driest month in Osceola?
How many days does it rain in December in Osceola?
How much does it snow in Osceola in December?
What is the month with the shortest days in Osceola?
How many hours of daylight does Osceola have in December?
When are sunrise and sunset in December in Osceola?
How long on average sun shines in December in Osceola?
What is the UV index reading in December in Osceola?
Average temperature in December
Osceola, IA
- Average high temperature in December: 34.9°F
The warmest month (with the highest average high temperature) is July (83.3°F).
The month with the lowest average high temperature is January (29.1°F).
- Average low temperature in December: 22.8°F
The month with the highest average low temperature is July (65.7°F).
The coldest month (with the lowest average low temperature) is January (15.8°F).
Average pressure in December
Osceola, IA
- Average pressure in December: 30.12"Hg
The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.89"Hg).
Average wind speed in December
Osceola, IA
- Average wind speed in December: 10.2mph
The windiest month (with the highest average wind speed) is January (10.7mph).
The calmest months (with the lowest average wind speed) are July and August (7.1mph).
Average humidity in December
Osceola, IA
- Average humidity in December: 79%
The month with the highest relative humidity is June (83%).
The month with the lowest relative humidity is October (71%).
Average rainfall in December
Osceola, IA
- Average rainfall in December: 0.63"
The wettest month (with the highest rainfall) is June (3.74").
The driest month (with the least rainfall) is December (0.63").
Average rainfall days in December
Osceola, IA
- Average rainfall days in December: 4.9 days
The months with the highest number of rainy days are May and June (16.4 days).
The months with the least rainy days are January and February (3.7 days).
Average snowfall in December
Osceola, IA
- Average snowfall in December: 1.22"
The month with the highest snowfall is January (3.66").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Osceola, IA
- Average snowfall days in December: 6.2 days
The month with the highest number of snowfall days is January (9.2 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Osceola, IA
- Average daylight in December: 9h and 2min
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 4min
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
Osceola, IA
- Average sunshine days in December: 21 days
The month with the most sunshine days is December (21 days).
The months with the least sunshine days are May and June (11.3 days).
Average UV index in December
Osceola, IA
- Average UV index in December: 2
The months with the highest UV index are June, July and August (UV index 6).
The month with the lowest UV index is January (UV index 1).
Average cloud cover in December
Osceola, IA
- Average cloud cover in December: 49
The month with the most cloud cover is January (Cloud cover 53).
The month with the least cloud cover is September (Cloud cover 29).
Average visibility in December
Osceola, IA
- Average visibility in December: 6mi
The months with the highest visibility are January, February, March, April, May, June, July, September, October, November and December (6mi).
The month with the lowest visibility is August (5mi).
Osceola, Iowa, USA
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