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
In the transition to December, Chesterfield observes a drop in the average high-temperature, moving from a frosty 48.6°F (9.2°C) in November to an icy 38.1°F (3.4°C). In Chesterfield, the nighttime temperature averages to a subzero cold 27.5°F (-2.5°C) during December.Humidity
January and December, with an average relative humidity of 83%, are the most humid months.Rainfall
In Chesterfield, in December, during 8.9 rainfall days, 1.57" (40mm) of precipitation is typically accumulated. In Chesterfield, during the entire year, the rain falls for 146.5 days and collects up to 22.32" (567mm) of precipitation.Snowfall
January through April, October through December are months with snowfall. In Chesterfield, in December, snow falls for 7.5 days, with typically accumulated 2.17" (55mm) of snow. In Chesterfield, during the entire year, snow falls for 34.2 days and aggregates up to 9.17" (233mm) of snow.Daylight
December has the shortest days of the year, with an average of 9h and 24min of daylight.On the first day of December, sunrise is at 7:45 am and sunset at 5:17 pm. On the last day of the month, sunrise is at 8:04 am and sunset at 5:27 pm EST.
Sunshine
In Chesterfield, the average sunshine in December is 4h.UV index
The months with the lowest UV index in Chesterfield are January through March, October through December, with an average maximum UV index of 2. A UV Index value of 2, and less, symbolizes a minimal health vulnerability from unprotected exposure to Sun's UV rays for average individuals.Note: The maximum UV index of 2 during December translates into these guidelines:
Children necessitate constant protection from sunlight, unlike the majority, who can remain under the sun for about an hour without burning. Sun exposure should be minimized, especially during midday, to avoid harmful UV radiation. A hat with a broad brim is indispensable, filtering out up to half of UV rays. Take warning! The intensity of the Sun's UV radiation can be nearly amplified twice due to snow reflection.
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate
Frequently asked questions
Is it cold during December?
What is the most humid month in Chesterfield?
What is the average humidity in December?
How many days does it rain in December?
How many days does it snow in December in Chesterfield?
What is the month with the shortest days?
How many hours of daylight does Chesterfield have in December?
When is the sunrise / sunset in December?
How many hours of sunshine does Chesterfield have in December?
When is the lowest UV index?
What is the UV index reading in December in Chesterfield?
Average temperature in December
Chesterfield, IN
- Average high temperature in December: 38.1°F
The warmest month (with the highest average high temperature) is July (81.1°F).
The month with the lowest average high temperature is January (32.2°F).
- Average low temperature in December: 27.5°F
The month with the highest average low temperature is July (64.6°F).
The coldest month (with the lowest average low temperature) is January (20.5°F).
Average pressure in December
Chesterfield, IN
- Average pressure in December: 30.11"Hg
The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).
Average wind speed in December
Chesterfield, IN
- Average wind speed in December: 9.6mph
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 (6mph).
Average humidity in December
Chesterfield, IN
- Average humidity in December: 83%
The months with the highest relative humidity are January and December (83%).
The month with the lowest relative humidity is October (74%).
Average rainfall in December
Chesterfield, IN
- Average rainfall in December: 1.57"
The wettest month (with the highest rainfall) is May (2.8").
The driest month (with the least rainfall) is February (1.22").
Average rainfall days in December
Chesterfield, IN
- Average rainfall days in December: 8.9 days
The month with the highest number of rainy days is May (18.1 days).
The month with the least rainy days is February (6.3 days).
Average snowfall in December
Chesterfield, IN
- Average snowfall in December: 2.17"
The month with the highest snowfall is February (2.24").
The months with the least snowfall are May, June, July, August and September (0").
Average snowfall days in December
Chesterfield, IN
- Average snowfall days in December: 7.5 days
The month with the highest number of snowfall days is January (9.8 days).
The months with the least snowfall days are June, July, August and September (0 days).
Average daylight in December /
Average sunshine in December
Chesterfield, IN
- 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 0min
The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).
Average sunshine days in December
Chesterfield, IN
- Average sunshine days in December: 15.7 days
The month with the most sunshine days is November (18.4 days).
The month with the least sunshine days is May (10.7 days).
Average UV index in December
Chesterfield, IN
- 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, March, October, November and December (UV index 2).
Average cloud cover in December
Chesterfield, IN
- Average cloud cover in December: 59
The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is August (Cloud cover 32).
Average visibility in December
Chesterfield, IN
- 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).
Chesterfield, Indiana, USA
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