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
As November transitions into December, Chatsworth sees a clear drop in the average high-temperature, declining from a chilly 45.1°F (7.3°C) to a subzero cold 29.3°F (-1.5°C). Chatsworth experiences a mean low-temperature of 16.9°F (-8.4°C) during December.Humidity
In Chatsworth, the average relative humidity in December is 83%.Rainfall
In Chatsworth, Iowa, in December, it is raining for 1.9 days, with typically 0.35" (9mm) of accumulated precipitation. Throughout the year, in Chatsworth, there are 80.7 rainfall days, and 6.54" (166mm) of precipitation is accumulated.Snowfall
January through May, October through December are months with snowfall. In Chatsworth, in December, snow falls for 5.5 days, with typically accumulated 0.35" (9mm) of snow. In Chatsworth, Iowa, during the entire year, snow falls for 27.5 days and aggregates up to 2.76" (70mm) of snow.Daylight
December has the shortest days of the year in Chatsworth, with an average of 9h and 6min of daylight.On the first day of December in Chatsworth, Iowa, sunrise is at 7:38 am and sunset at 4:52 pm. On the last day of the month, sunrise is at 7:56 am and sunset at 5:01 pm CST.
Sunshine
The average sunshine in December in Chatsworth is 4.5h.UV index
January, February, November and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from exposure to the Sun's UV rays for the ordinary person.Note: An average maximum UV index of 2 in December leads to these recommendations:
While most people are not greatly affected by extended sun exposure, those with fair skin, babies, and children must always have protection. Protect yourself from the midday Sun's peak UV radiation by minimizing exposure. By wearing a generously brimmed hat, you can cut UV radiation exposure significantly. Take heed! Reflection from the snow can almost amplify the Sun's UV radiation by double.
Frequently asked questions
How cold is December in Chatsworth?
What is the average humidity in December in Chatsworth?
How much does it rain in Chatsworth in December?
How many days does it snow in December in Chatsworth?
What is the month with the shortest days in Chatsworth?
What is the average length of the day in December in Chatsworth?
What time are sunrise and sunset in December in Chatsworth?
How many hours of sunshine does Chatsworth have in December?
What is the month with the lowest UV index in Chatsworth?
How high is the UV index in December in Chatsworth?
Average temperature in December
Chatsworth, IA
- Average high temperature in December: 29.3°F
The warmest month (with the highest average high temperature) is July (82.9°F).
The month with the lowest average high temperature is January (25°F).
- Average low temperature in December: 16.9°F
The month with the highest average low temperature is July (63.7°F).
The coldest month (with the lowest average low temperature) is January (11.3°F).
Average pressure in December
Chatsworth, 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
Chatsworth, IA
- Average wind speed in December: 9.9mph
The windiest month (with the highest average wind speed) is April (11.2mph).
The calmest month (with the lowest average wind speed) is July (7.8mph).
Average humidity in December
Chatsworth, IA
- Average humidity in December: 83%
The month with the highest relative humidity is January (86%).
The month with the lowest relative humidity is October (66%).
Average rainfall in December
Chatsworth, IA
- Average rainfall in December: 0.35"
The wettest month (with the highest rainfall) is June (1.06").
The driest months (with the least rainfall) are January and February (0.16").
Average rainfall days in December
Chatsworth, IA
- Average rainfall days in December: 1.9 days
The month with the highest number of rainy days is June (13 days).
The month with the least rainy days is February (1.3 days).
Average snowfall in December
Chatsworth, IA
- Average snowfall in December: 0.35"
The month with the highest snowfall is February (0.75").
The months with the least snowfall are June, July, August and September (0").
Average snowfall days in December
Chatsworth, IA
- Average snowfall days in December: 5.5 days
The month with the highest number of snowfall days is January (6.7 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Chatsworth, 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 3min
The month with the most sunshine is July (Average sunshine: 10h and 24min).
The month with the least sunshine is January (Average sunshine: 4h and 0min).
Average sunshine days in December
Chatsworth, IA
- Average sunshine days in December: 26 days
The month with the most sunshine days is December (26 days).
The month with the least sunshine days is June (13.2 days).
Average UV index in December
Chatsworth, IA
- Average UV index in December: 2
The months with the highest UV index are June and July (UV index 6).
The months with the lowest UV index are January, February, November and December (UV index 2).
Average cloud cover in December
Chatsworth, IA
- Average cloud cover in December: 52
The month with the most cloud cover is January (Cloud cover 55).
The month with the least cloud cover is July (Cloud cover 27).
Average visibility in December
Chatsworth, 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).
Chatsworth, Iowa, USA
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