December weather forecast
Chatham, MS

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Weather in December

The first month of the winter, December, is also a fresh month in Chatham, Mississippi, with an average temperature fluctuating between 55°F (12.8°C) and 42.1°F (5.6°C).

Temperature

Transition into December subtly marks a drop in the average high-temperature, moderately moving from an enjoyable 63.3°F (17.4°C) in November to a fresh 55°F (12.8°C). December nights in Chatham are marked by an average low-temperature of 42.1°F (5.6°C).

Humidity

The average relative humidity in December in Chatham is 79%.

Rainfall

In Chatham, Mississippi, in December, it is raining for 11.3 days, with typically 3.07" (78mm) of accumulated precipitation. Throughout the year, in Chatham, there are 152.6 rainfall days, and 34.21" (869mm) of precipitation is accumulated.

Snowfall

In Chatham, snow does not fall in March through December.

Daylight

The month with the shortest days is December, with an average of 10h and 0min of daylight.
On the first day of December, sunrise is at 6:50 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:08 pm CST.

Sunshine

In Chatham, the average sunshine in December is 5.1h.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Chatham. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for the average person.
Note: In December, a daily UV index of 3 turns into the following recommendations:
Be mindful. Individuals with a lighter skin tone may suffer burns in less than 30 minutes. Given the potency of the midday Sun's UV radiation, one should avoid prolonged exposure. A wide-brimmed hat is a shield, deflecting up to 50% of harmful UV radiation from eyes. Heed this! Snow reflection can almost augment the UV radiation of the sun by double.
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Frequently asked questions

What is the temperature in December in Chatham?

During December, Chatham experiences an average high-temperature of 55°F (12.8°C) and a low-temperature of 42.1°F (5.6°C). The average heat index (a.k.a. 'felt air temperature', 'apparent temperature'), which represents the influence of relative humidity on air temperature, in September is computed to be 96.8°F (36°C).

What is the average humidity in December in Chatham?

In Chatham, the average relative humidity in December is 79%.

How many days does it rain in December in Chatham?

In Chatham, during December, the rain falls for 11.3 days and regularly aggregates up to 3.07" (78mm) of precipitation.

When it does not snow in Chatham?

In Chatham, Mississippi, snow does not fall in March through December.

Does it snow in Chatham in December?

In Chatham, Mississippi, in December, it doesn't snow. In January, it regularly snows.

What is the month with the shortest days in Chatham?

With an average of 10h and 0min of daylight, December has the shortest days of the year in Chatham, Mississippi.

What is the average length of the day in December in Chatham?

The average day length in December in Chatham, Mississippi, is 10h and 1min.

What time are sunrise and sunset in December in Chatham?

In December, on the first day of the month, sunrise is at 6:50 am and sunset at 4:57 pm. On the last day of the month, sunrise is at 7:07 am and sunset at 5:08 pm CST.

How many hours of sunshine does Chatham have in December?

In December, the average sunshine duration in Chatham is 5.1h.

What is the month with the lowest UV index in Chatham?

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Chatham, Mississippi.

How high is the UV index in December in Chatham?

In December, the average daily maximum UV index is 3. A UV Index value of 3 to 5 symbolizes a medium health risk from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Chatham, MS

Average temperature in December - Chatham, MS
  • Average high temperature in December: 55°F

The warmest month (with the highest average high temperature) is July (90.9°F).
The month with the lowest average high temperature is January (52°F).

  • Average low temperature in December: 42.1°F

The month with the highest average low temperature is July (73.8°F).
The coldest month (with the lowest average low temperature) is January (38.5°F).

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Average pressure in December
Chatham, MS

Average pressure in December - Chatham, MS
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.17"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Chatham, MS

Average wind speed in December - Chatham, MS
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is February (9.4mph).
The calmest month (with the lowest average wind speed) is August (5.5mph).

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Average humidity in December
Chatham, MS

Average humidity in December - Chatham, MS
  • Average humidity in December: 79%

The month with the highest relative humidity is February (80%).
The month with the lowest relative humidity is October (67%).

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Average rainfall in December
Chatham, MS

Average rainfall in December - Chatham, MS
  • Average rainfall in December: 3.07"

The wettest month (with the highest rainfall) is April (4.29").
The driest month (with the least rainfall) is September (1.61").

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Average rainfall days in December
Chatham, MS

Average rainfall days in December - Chatham, MS
  • Average rainfall days in December: 11.3 days

The month with the highest number of rainy days is July (17.2 days).
The month with the least rainy days is October (8.5 days).

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Average snowfall in December
Chatham, MS

Average snowfall in December - Chatham, MS
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.31").
The months with the least snowfall are March, April, May, June, July, August, September, October, November and December (0").

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Average snowfall days in December
Chatham, MS

Average snowfall days in December - Chatham, MS
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is February (0.8 days).
The months with the least snowfall days are April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Chatham, MS

Average daylight in December / Average sunshine in December - Chatham, MS
  • Average daylight in December: 10h and 0min

The month with the longest days is June (Average daylight: 14h and 18min).
The month with the shortest days is December (Average daylight: 10h and 0min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 48min).
The month with the least sunshine is February (Average sunshine: 4h and 48min).

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Average sunshine days in December
Chatham, MS

Average sunshine days in December - Chatham, MS
  • Average sunshine days in December: 17.7 days

The month with the most sunshine days is October (20.8 days).
The month with the least sunshine days is July (11.9 days).

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Average UV index in December
Chatham, MS

Average UV index in December - Chatham, MS
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 7).
The months with the lowest UV index are January and December (UV index 3).

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Average cloud cover in December
Chatham, MS

Average cloud cover in December - Chatham, MS
  • Average cloud cover in December: 45

The month with the most cloud cover is February (Cloud cover 47).
The month with the least cloud cover is June (Cloud cover 25).

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Average visibility in December
Chatham, MS

Average visibility in December - Chatham, MS
  • 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).

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Chatham, Mississippi, USA

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