December weather forecast
Jalapa, TN

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Weather in December

The first month of the winter, December, is still a cool month in Jalapa, Tennessee, with temperature in the range of an average high of 50.4°F (10.2°C) and an average low of 36°F (2.2°C).

Temperature

The shift from November to December includes a minor decrease in the average high-temperature, lightly dropping from a refreshing 57.6°F (14.2°C) to a fresh 50.4°F (10.2°C). In Jalapa, the average low-temperature during the month of December is a cold 36°F (2.2°C).

Humidity

With an average relative humidity of 79%, December is the most humid month.

Rainfall

In Jalapa, in December, it is raining for 13.4 days, with typically 2.99" (76mm) of accumulated precipitation. Throughout the year, in Jalapa, there are 170.1 rainfall days, and 33.23" (844mm) of precipitation is accumulated.

Snowfall

Months with snowfall in Jalapa are January through April, November and December. In Jalapa, during December, snow falls for 2.3 days and regularly aggregates up to 0.39" (10mm) of snow. Throughout the year, there are 14.2 snowfall days, and 2.36" (60mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 48min of daylight.
On the first day of the month, sunrise is at 7:28 am and sunset at 5:25 pm. On the last day of December, sunrise is at 7:46 am and sunset at 5:35 pm EST.

Sunshine

The months with the least sunshine are January and December, with an average of 5.1h of sunshine.

UV index

The months with the lowest UV index are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a low health risk from exposure to the Sun's UV radiation for average individuals.
Note: In December, the maximum UV index of 2 suggests this advice:
Children, babies, and those with sensitive skin should always be shielded from long periods of sun exposure. The Sun is at its harshest during midday; protect yourself by staying in shaded areas and minimizing exposure. Sunglasses providing both UVA and UVB protection are non-negotiable on sunlit days. Be alert! Nearly double the UV rays from the Sun can be reflected by snow.

Frequently asked questions

What is the temperature in December?

In Jalapa, in December, the average high-temperature is 50.4°F (10.2°C), and the average low-temperature is 36°F (2.2°C). The average heat index (a.k.a. 'felt air temperature', 'feels like'), which combines air temperature and relative humidity, in September is calculated to be 86°F (30°C).

What is the most humid month?

The most humid month is December, with an average relative humidity of 79%.

What is the average humidity in December?

In December, the average relative humidity is 79%.

How much does it rain in December?

In Jalapa, during December, the rain falls for 13.4 days and regularly aggregates up to 2.99" (76mm) of precipitation.

How many days does it snow in December?

In Jalapa, in December, during 2.3 snowfall days, 0.39" (10mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 48min of daylight.

How many hours of daylight does Jalapa have in December?

In December, the average day length is 9h and 49min.

When are sunrise and sunset in December?

In December, on the first day of the month, sunrise is at 7:28 am and sunset at 5:25 pm. On the last day of the month, in Jalapa, sunrise is at 7:46 am and sunset at 5:35 pm EST.

What are the months with the least sunshine?

The months with the least sunshine are January and December, with an average of 5.1h of sunshine.

How long on average sun shines in December?

In December, the average sunshine duration is 5.1h.

What is the month with the lowest UV index?

January, February and December, with an average maximum UV index of 2, are months with the lowest UV index.

How high is the UV index in December?

In Jalapa, the average daily maximum UV index in December is 2. A UV Index reading of 2, and below, represents a minimal health vulnerability from exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Jalapa, TN

Average temperature in December - Jalapa, TN
  • Average high temperature in December: 50.4°F

The warmest month (with the highest average high temperature) is July (87.1°F).
The month with the lowest average high temperature is January (46°F).

  • Average low temperature in December: 36°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 (30.6°F).

Average pressure in December
Jalapa, TN

Average pressure in December - Jalapa, TN
  • Average pressure in December: 30.15"Hg

The months with the highest atmospheric pressure are January and November (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.98"Hg).

Average wind speed in December
Jalapa, TN

Average wind speed in December - Jalapa, TN
  • Average wind speed in December: 5.8mph

The windiest month (with the highest average wind speed) is April (6.6mph).
The calmest month (with the lowest average wind speed) is August (3.9mph).

Average humidity in December
Jalapa, TN

Average humidity in December - Jalapa, TN
  • Average humidity in December: 79%

The month with the highest relative humidity is December (79%).
The months with the lowest relative humidity are August, October and November (75%).

Average rainfall in December
Jalapa, TN

Average rainfall in December - Jalapa, TN
  • Average rainfall in December: 2.99"

The wettest month (with the highest rainfall) is July (3.94").
The driest months (with the least rainfall) are September and November (1.89").

Average rainfall days in December
Jalapa, TN

Average rainfall days in December - Jalapa, TN
  • Average rainfall days in December: 13.4 days

The month with the highest number of rainy days is July (18.9 days).
The month with the least rainy days is November (9.1 days).

Average snowfall in December
Jalapa, TN

Average snowfall in December - Jalapa, TN
  • Average snowfall in December: 0.39"

The month with the highest snowfall is February (0.83").
The months with the least snowfall are May, June, July, August, September and October (0").

Average snowfall days in December
Jalapa, TN

Average snowfall days in December - Jalapa, TN
  • Average snowfall days in December: 2.3 days

The month with the highest number of snowfall days is January (4.6 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Jalapa, TN

Average daylight in December / Average sunshine in December - Jalapa, TN
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 30min).
The month with the shortest days is December (Average daylight: 9h and 48min).

  • Average sunshine in December: 5h and 1min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The months with the least sunshine are January and December (Average sunshine: 5h and 6min).

Average sunshine days in December
Jalapa, TN

Average sunshine days in December - Jalapa, TN
  • Average sunshine days in December: 15.5 days

The month with the most sunshine days is November (19.6 days).
The month with the least sunshine days is July (10.4 days).

Average UV index in December
Jalapa, TN

Average UV index in December - Jalapa, TN
  • Average UV index in December: 2

The months with the highest UV index are May, June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Jalapa, TN

Average cloud cover in December - Jalapa, TN
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 52).
The month with the least cloud cover is June (Cloud cover 28).

Average visibility in December
Jalapa, TN

Average visibility in December - Jalapa, TN
  • Average visibility in December: 5mi

The months with the highest visibility are February, March, April, May, June, July, August, September, October and November (6mi).
The months with the lowest visibility are January and December (5mi).

Jalapa, Tennessee, USA

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