December weather forecast
Johnson City, TX

Weather in December

December, the first month of the winter in Johnson City, is also a moderate month, with an average temperature varying between 43.2°F (6.2°C) and 59.2°F (15.1°C).

Temperature

In December, the average high-temperature slightly decreases from an enjoyable 66.7°F (19.3°C) in November to a mild 59.2°F (15.1°C). The average low-temperature, in Johnson City, is 43.2°F (6.2°C).

Humidity

In Johnson City, the average relative humidity in December is 70%.

Rainfall

In December, the rain falls for 9.9 days. Throughout December, 1.22" (31mm) of precipitation is accumulated. Throughout the year, there are 149 rainfall days, and 24.92" (633mm) of precipitation is accumulated.

Snowfall

March through October and December are months without snowfall in Johnson City.

Daylight

December has the shortest days of the year in Johnson City, with an average of 10h and 14min of daylight.
On the first day of the month, sunrise is at 7:12 am and sunset at 5:32 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:43 pm CST.

Sunshine

The months with the least sunshine in Johnson City are November and December, with an average of 5.5h of sunshine.

UV index

December is the month with the lowest UV index in Johnson City, with an average maximum UV index of 3. A UV Index estimate of 3 to 5 represents a medium health hazard from exposure to the Sun's UV rays for ordinary individuals.
Note: In December, the average maximum UV index of 3 translate into the following recommendations:
Take precautions - Protection against sunburn is recommended. The Sun's most intense and consequently most harmful UV radiation during midday hours should be decreased by minimizing exposure and seeking shade. Sun-protective clothing, a long-sleeved shirt and pants, a wide-brimmed hat, and UVA and UVB-blocking sunglasses are particularly helpful in blocking UV radiation's harmful effects. Beware! The strength of the UV rays is increased nearly double-fold by the reflection of the snow.
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FAQ

What is the temperature in December in Johnson City?

In Johnson City, Texas, in December, the average high-temperature is 59.2°F (15.1°C), and the average low-temperature is 43.2°F (6.2°C). in September, the average heat index (a.k.a. 'felt air temperature', 'real feel'), which combines air temperature and relative humidity, is estimated at 96.8°F (36°C).

What is the average humidity in December in Johnson City?

The average relative humidity in December is 70%.

How much does it rain in Johnson City in December?

In Johnson City, Texas, in December, it is raining for 9.9 days, with typically 1.22" (31mm) of accumulated precipitation.

When it does not snow in Johnson City?

In Johnson City, Texas, snow does not fall in March through October and December.

Does it snow in Johnson City in December?

In December, it doesn't snow. November is the latest month when it typically snows.

What is the month with the shortest days in Johnson City?

The month with the shortest days in Johnson City, Texas, is December, with an average of 10h and 14min of daylight.

What is the average length of the day in December in Johnson City?

In Johnson City, Texas, the average day length in December is 10h and 14min.

What time are sunrise and sunset in December in Johnson City?

On the first day of December, sunrise is at 7:12 am and sunset at 5:32 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:43 pm CST.

What are the months with the least sunshine in Johnson City?

November and December, with an average of 5.5h of sunshine, are months with the least sunshine in Johnson City.

How long on average sun shines in December in Johnson City?

In Johnson City, Texas, the average sunshine duration in December is 5.5h.

When is the lowest UV index in Johnson City?

December is the month with the lowest UV index in Johnson City, Texas, with an average maximum UV index of 3.

How high is the UV index in December in Johnson City?

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

Average temperature in December
Johnson City, TX

Average temperature in December - Johnson City, TX
  • Average high temperature in December: 59.2°F

The warmest month (with the highest average high temperature) is August (93.9°F).
The month with the lowest average high temperature is January (58.6°F).

  • Average low temperature in December: 43.2°F

The month with the highest average low temperature is August (72.9°F).
The coldest month (with the lowest average low temperature) is January (41.4°F).

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Average pressure in December
Johnson City, TX

Average pressure in December - Johnson City, TX
  • 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 (29.9"Hg).

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Average wind speed in December
Johnson City, TX

Average wind speed in December - Johnson City, TX
  • Average wind speed in December: 8.6mph

The windiest month (with the highest average wind speed) is March (10.1mph).
The calmest month (with the lowest average wind speed) is September (6.6mph).

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Average humidity in December
Johnson City, TX

Average humidity in December - Johnson City, TX
  • Average humidity in December: 70%

The month with the highest relative humidity is May (76%).
The month with the lowest relative humidity is August (61%).

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Average rainfall in December
Johnson City, TX

Average rainfall in December - Johnson City, TX
  • Average rainfall in December: 1.22"

The wettest month (with the highest rainfall) is May (4.13").
The driest month (with the least rainfall) is February (1.18").

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Average rainfall days in December
Johnson City, TX

Average rainfall days in December - Johnson City, TX
  • Average rainfall days in December: 9.9 days

The month with the highest number of rainy days is May (17.3 days).
The month with the least rainy days is January (8.9 days).

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Average snowfall in December
Johnson City, TX

Average snowfall in December - Johnson City, TX
  • Average snowfall in December: 0"

The month with the highest snowfall is February (0.2").
The months with the least snowfall are March, April, May, June, July, August, September, October and December (0").

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Average snowfall days in December
Johnson City, TX

Average snowfall days in December - Johnson City, TX
  • Average snowfall days in December: 0.2 days

The month with the highest number of snowfall days is February (0.7 days).
The months with the least snowfall days are March, April, May, June, July, August, September and October (0 days).

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Average daylight in December /
Average sunshine in December
Johnson City, TX

Average daylight in December / Average sunshine in December - Johnson City, TX
  • Average daylight in December: 10h and 14min

The month with the longest days is June (Average daylight: 14h and 4min).
The month with the shortest days is December (Average daylight: 10h and 14min).

  • Average sunshine in December: 5h and 30min

The month with the most sunshine is July (Average sunshine: 10h and 18min).
The months with the least sunshine are November and December (Average sunshine: 5h and 30min).

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Average sunshine days in December
Johnson City, TX

Average sunshine days in December - Johnson City, TX
  • Average sunshine days in December: 19 days

The month with the most sunshine days is January (21.1 days).
The months with the least sunshine days are May and September (11.1 days).

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Average UV index in December
Johnson City, TX

Average UV index in December - Johnson City, TX
  • Average UV index in December: 3

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

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Average cloud cover in December
Johnson City, TX

Average cloud cover in December - Johnson City, TX
  • Average cloud cover in December: 39

The month with the most cloud cover is May (Cloud cover 46).
The month with the least cloud cover is August (Cloud cover 24).

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Average visibility in December
Johnson City, TX

Average visibility in December - Johnson City, TX
  • 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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