December weather forecast
Washington, LA

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Weather in December

December, the first month of the winter in Washington, is also a moderate month, with an average temperature ranging between min 46.2°F (7.9°C) and max 60.6°F (15.9°C).

Temperature

December ushers in a minute temperature change, with average high-temperatures reducing from November's 67.6°F (19.8°C) to a still refreshing 60.6°F (15.9°C). The average temperature in Washington drops to a frosty 46.2°F (7.9°C) during the night in the month of December.

Humidity

The average relative humidity in December is 81%.

Rainfall

In Washington, Louisiana, during December, the rain falls for 9.1 days and regularly aggregates up to 0.98" (25mm) of precipitation. In Washington, during the entire year, the rain falls for 127.3 days and collects up to 11.65" (296mm) of precipitation.

Snowfall

Months with snowfall are January and December. The months with the most snowfall in Washington are January and December, with an average 0.04" (1mm) of accumulated snow.

Daylight

With an average of 10h and 12min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 6:48 am and sunset at 5:06 pm. On the last day of December, sunrise is at 7:05 am and sunset at 5:17 pm CST.

Sunshine

December has the least sunshine of the year, with an average of 4.9h of sunshine.

UV index

January and December, with an average maximum UV index of 3, are months with the lowest UV index in Washington. A UV Index reading of 3 to 5 represents a medium vulnerability from exposure to the Sun's UV radiation for ordinary individuals.
Note: A maximum high daily UV index of 3 during December translates into the following directions:
Guard yourself - Precautionary measures against sun damage are advocated. Exposing oneself to the midday Sun can be harmful due to the strong UV radiation; limit your time outside. Shield yourself from the harmful effects of UV radiation with sun-protective attire, a hat, and quality sunglasses. Take precaution! The reflection from snow can almost double the UV radiation of the Sun.
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Frequently asked questions

What is the usual temperature for Washington in December?

The high-temperature, in December, in Washington, records 60.6°F (15.9°C), while the low-temperature is 46.2°F (7.9°C). In September, the average heat index (a.k.a. 'feels like', 'felt air temperature'), which calculates the temperature value influenced by the moisture in the air, is computed to be 102.2°F (39°C).

What is the average humidity in December in Washington?

In Washington, the average relative humidity in December is 81%.

How many days does it rain in December in Washington?

In Washington, Louisiana, during December, the rain falls for 9.1 days and regularly aggregates up to 0.98" (25mm) of precipitation.

What is the snowiest month in Washington?

The months with the most snowfall are January and December, with an average 0.04" (1mm) of accumulated snow.

When does it start snowing in Washington?

December is the first month it typically snows in Washington. Throughout December, in the average 0.1 snowfall days, it receives 0.04" (1mm) of snow.

What is the month with the shortest days in Washington?

December has the shortest days of the year in Washington, with an average of 10h and 12min of daylight.

How many hours of daylight does Washington have in December?

In December, the average day length in Washington, Louisiana, is 10h and 13min.

When are sunrise and sunset in December in Washington?

In December, on the first day of the month, sunrise is at 6:48 am and sunset at 5:06 pm. On the last day of the month, in Washington, sunrise is at 7:05 am and sunset at 5:17 pm CST.

What is the month with the least sunshine in Washington?

The month with the least sunshine in Washington is December, with an average of 4.9h of sunshine.

How many hours of sunshine does Washington have in December?

In December, the average sunshine duration in Washington is 4.9h.

What are the months with the lowest UV index in Washington?

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

How high is the UV index in December in Washington?

The average daily maximum UV index in December in Washington, Louisiana, is 3. A UV Index of 3 to 5 symbolizes a medium hazard to health from unsafe 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
Washington, LA

Average temperature in December - Washington, LA
  • Average high temperature in December: 60.6°F

The warmest month (with the highest average high temperature) is July (90.3°F).
The month with the lowest average high temperature is January (57.7°F).

  • Average low temperature in December: 46.2°F

The month with the highest average low temperature is August (73.8°F).
The coldest month (with the lowest average low temperature) is January (42.4°F).

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Average pressure in December
Washington, LA

Average pressure in December - Washington, LA
  • Average pressure in December: 30.12"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.95"Hg).

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Average wind speed in December
Washington, LA

Average wind speed in December - Washington, LA
  • Average wind speed in December: 7.3mph

The windiest month (with the highest average wind speed) is February (7.9mph).
The calmest month (with the lowest average wind speed) is July (5mph).

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Average humidity in December
Washington, LA

Average humidity in December - Washington, LA
  • Average humidity in December: 81%

The month with the highest relative humidity is February (83%).
The month with the lowest relative humidity is October (72%).

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Average rainfall in December
Washington, LA

Average rainfall in December - Washington, LA
  • Average rainfall in December: 0.98"

The wettest months (with the highest rainfall) are July and August (1.57").
The driest months (with the least rainfall) are February and March (0.63").

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Average rainfall days in December
Washington, LA

Average rainfall days in December - Washington, LA
  • Average rainfall days in December: 9.1 days

The month with the highest number of rainy days is August (15.9 days).
The month with the least rainy days is November (6.6 days).

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Average snowfall in December
Washington, LA

Average snowfall in December - Washington, LA
  • Average snowfall in December: 0.04"

The months with the highest snowfall are January and December (0.04").
The months with the least snowfall are February, March, April, May, June, July, August, September, October and November (0").

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Average snowfall days in December
Washington, LA

Average snowfall days in December - Washington, LA
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is January (0.3 days).
The months with the least snowfall days are March, April, May, June, July, August, September, October and November (0 days).

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Average daylight in December /
Average sunshine in December
Washington, LA

Average daylight in December / Average sunshine in December - Washington, LA
  • Average daylight in December: 10h and 1min

The month with the longest days is June (Average daylight: 14h and 6min).
The month with the shortest days is December (Average daylight: 10h and 12min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 12min).
The month with the least sunshine is December (Average sunshine: 4h and 54min).

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Average sunshine days in December
Washington, LA

Average sunshine days in December - Washington, LA
  • Average sunshine days in December: 19.8 days

The month with the most sunshine days is November (21.9 days).
The month with the least sunshine days is August (10.7 days).

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Average UV index in December
Washington, LA

Average UV index in December - Washington, LA
  • 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
Washington, LA

Average cloud cover in December - Washington, LA
  • Average cloud cover in December: 48

The month with the most cloud cover is February (Cloud cover 50).
The month with the least cloud cover is October (Cloud cover 28).

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Average visibility in December
Washington, LA

Average visibility in December - Washington, LA
  • Average visibility in December: 6mi

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

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Washington, Louisiana, USA

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