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 arrival of December brings a distinct temperature shift, with the average high-temperature dropping from a frosty 42.8°F (6°C) in November to a subzero cold 28.2°F (-2.1°C). During December, Ventura observes a consistent average nighttime temperature of 18.1°F (-7.7°C).Humidity
In December, the average relative humidity is 86%.Rainfall
In Ventura, during December, the rain falls for 2.8 days and regularly aggregates up to 0.31" (8mm) of precipitation. In Ventura, during the entire year, the rain falls for 80.2 days and collects up to 6.14" (156mm) of precipitation.Snowfall
Months with snowfall in Ventura are January through May, October through December. In Ventura, in December, during 8.5 snowfall days, 0.35" (9mm) of snow is typically accumulated. Throughout the year, there are 36.9 snowfall days, and 3.31" (84mm) of snow is accumulated.Daylight
December has the shortest days of the year, with an average of 9h and 6min of daylight.On the first day of the month, sunrise is at 7:26 am and sunset at 4:39 pm. On the last day of December, sunrise is at 7:45 am and sunset at 4:48 pm CST.
Sunshine
In Ventura, the average sunshine in December is 4h.UV index
January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index reading of 2, and below, represents a minimal health hazard from unsafe exposure to UV radiation for average individuals.Note: A maximum UV index of 1 in December translates into the following recommendations:
Though extended exposure to the sun typically does not concern most people, it is crucial to always shield children, infants, and those with sensitive skin. Direct Sun exposure should be minimized especially during midday when radiation is most intense. Consider a wide-brim hat essential for effective sun defense covering your face, neck, and eyes. Be prepared! The intensity of the Sun's UV radiation can be amplified nearly double due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
How cold is December?
What is the average humidity in December in Ventura?
How many days does it rain in December?
How many days does it snow in December?
What is the month with the shortest days?
What is the average length of the day in December?
What time are sunrise and sunset in December?
How long on average sun shines in December in Ventura?
When is the lowest UV index?
What is the UV index reading in December?
Average temperature in December
Ventura, IA
- Average high temperature in December: 28.2°F
The warmest month (with the highest average high temperature) is July (79.3°F).
The month with the lowest average high temperature is January (22.5°F).
- Average low temperature in December: 18.1°F
The month with the highest average low temperature is July (62.8°F).
The coldest month (with the lowest average low temperature) is January (10.2°F).
Average pressure in December
Ventura, IA
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.15"Hg).
The month with the lowest atmospheric pressure is June (29.88"Hg).
Average wind speed in December
Ventura, IA
- Average wind speed in December: 10.4mph
The windiest month (with the highest average wind speed) is April (11mph).
The calmest month (with the lowest average wind speed) is July (7.4mph).
Average humidity in December
Ventura, IA
- Average humidity in December: 86%
The month with the highest relative humidity is January (89%).
The month with the lowest relative humidity is October (70%).
Average rainfall in December
Ventura, IA
- Average rainfall in December: 0.31"
The wettest month (with the highest rainfall) is June (0.87").
The driest month (with the least rainfall) is January (0.2").
Average rainfall days in December
Ventura, IA
- Average rainfall days in December: 2.8 days
The month with the highest number of rainy days is June (12 days).
The months with the least rainy days are January and February (1.7 days).
Average snowfall in December
Ventura, IA
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (1.14").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Ventura, IA
- Average snowfall days in December: 8.5 days
The month with the highest number of snowfall days is January (8.9 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Ventura, IA
- Average daylight in December: 9h and 1min
The month with the longest days is June (Average daylight: 15h and 18min).
The month with the shortest days is December (Average daylight: 9h and 6min).
- Average sunshine in December: 4h and 0min
The month with the most sunshine is July (Average sunshine: 9h and 48min).
The month with the least sunshine is January (Average sunshine: 3h and 36min).
Average sunshine days in December
Ventura, IA
- Average sunshine days in December: 23.2 days
The month with the most sunshine days is January (24.6 days).
The month with the least sunshine days is June (14.8 days).
Average UV index in December
Ventura, IA
- Average UV index in December: 1
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January and December (UV index 1).
Average cloud cover in December
Ventura, IA
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 63).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Ventura, IA
- Average visibility in December: 6mi
The months with the highest visibility are February, March, April, May, June, September, October, November and December (6mi).
The months with the lowest visibility are January, July and August (5mi).
Ventura, Iowa, USA
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