December weather forecast
Congress, AZ

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Weather in December

The first month of the winter, December, is also a moderate month in Congress, Arizona, with an average temperature varying between 43.3°F (6.3°C) and 58.8°F (14.9°C).

Temperature

Congress's coldest temperatures are experienced in December, with average high temperatures of 58.8°F (14.9°C) and lows of 43.3°F (6.3°C).

Humidity

The most humid month in Congress is December, with an average relative humidity of 45%.

Rainfall

In Congress, during December, the rain falls for 6 days and regularly aggregates up to 0.79" (20mm) of precipitation. In Congress, during the entire year, the rain falls for 60.7 days and collects up to 9.13" (232mm) of precipitation.

Snowfall

December is the only month when snow falls in Congress, Arizona. The month with the most snowfall days is December, when snow falls for 0.1 days.

Daylight

December has the shortest days of the year in Congress, with an average of 9h and 54min of daylight.
On the first day of December in Congress, sunrise is at 7:19 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:32 pm MST.

Sunshine

With an average of 6.8h of sunshine, December has the least sunshine of the year.

UV index

With an average maximum UV index of 3, December is the month with the lowest UV index in Congress. A UV Index value of 3 to 5 symbolizes a moderate health risk from unprotected exposure to Sun's UV rays for average individuals.
Note: An average UV index of 3 in December transforms into this advice:
Exercise caution. Those with pale skin may experience burns in less than half an hour. The Sun's most harmful UV rays are emitted around midday; avoid staying outdoors for long during this time. Loose clothes with a tight weave are optimal for safeguarding yourself against the Sun's rays. Mind you! Snow reflection can increase the intensity of the Sun's UV radiation nearly twofold.

Frequently asked questions

What are the coldest months in Congress?

In Congress, December is the month with the lowest recorded average temperatures, measuring a high of 58.8°F (14.9°C) and a low of 43.3°F (6.3°C).

What is the temperature in December in Congress?

The average high-temperature and low-temperature during December are 58.8°F (14.9°C) and 43.3°F (6.3°C) respectively.

What is the most humid month in Congress?

With an average relative humidity of 45%, December is the most humid month in Congress.

What is the average humidity in December in Congress?

In Congress, Arizona, the average relative humidity in December is 45%.

How many days does it rain in December in Congress?

In Congress, Arizona, in December, it is raining for 6 days, with typically 0.79" (20mm) of accumulated precipitation.

What is the snowiest month in Congress?

December has the most snowfall days of the year in Congress. Snow falls for 0.1 days.

When does it start snowing in Congress?

December is the first month it typically snows in Congress, Arizona. Throughout December, there are 0.1 snowfall days.

What is the month with the shortest days in Congress?

December has the shortest days of the year, with an average of 9h and 54min of daylight.

How many hours of daylight does Congress have in December?

In Congress, Arizona, the average day length in December is 9h and 55min.

When is the sunrise / sunset in December in Congress?

On the first day of December in Congress, Arizona, sunrise is at 7:19 am and sunset at 5:21 pm. On the last day of the month, sunrise is at 7:37 am and sunset at 5:32 pm MST.

What is the month with the least sunshine in Congress?

December has the least sunshine of the year in Congress, Arizona, with an average of 6.8h of sunshine.

How many hours of sunshine does Congress have in December?

The average sunshine duration in December in Congress is 6.8h.

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

December is the month with the lowest UV index in Congress, Arizona, with an average maximum UV index of 3.

What is the UV index intensity in December in Congress?

In Congress, Arizona, the average daily maximum UV index in December is 3. A UV Index estimate of 3 to 5 represents a medium hazard to health from unprotected exposure to UV radiation.
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
Congress, AZ

Average temperature in December - Congress, AZ
  • Average high temperature in December: 58.8°F

The warmest month (with the highest average high temperature) is July (97.3°F).
The month with the lowest average high temperature is December (58.8°F).

  • Average low temperature in December: 43.3°F

The month with the highest average low temperature is August (79.7°F).
The coldest month (with the lowest average low temperature) is December (43.3°F).

Average pressure in December
Congress, AZ

Average pressure in December - Congress, AZ
  • Average pressure in December: 30.06"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.8"Hg).

Average wind speed in December
Congress, AZ

Average wind speed in December - Congress, AZ
  • Average wind speed in December: 5.5mph

The windiest month (with the highest average wind speed) is April (7.6mph).
The calmest month (with the lowest average wind speed) is December (5.5mph).

Average humidity in December
Congress, AZ

Average humidity in December - Congress, AZ
  • Average humidity in December: 45%

The month with the highest relative humidity is December (45%).
The month with the lowest relative humidity is June (17%).

Average rainfall in December
Congress, AZ

Average rainfall in December - Congress, AZ
  • Average rainfall in December: 0.79"

The wettest month (with the highest rainfall) is August (1.26").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in December
Congress, AZ

Average rainfall days in December - Congress, AZ
  • Average rainfall days in December: 6 days

The month with the highest number of rainy days is July (10.5 days).
The month with the least rainy days is June (1.6 days).

Average snowfall days in December
Congress, AZ

Average snowfall days in December - Congress, AZ
  • Average snowfall days in December: 0.1 days

The month with the highest number of snowfall days is December (0.1 days).
The months with the least snowfall days are January, February, March, April, May, June, July, August, September, October and November (0 days).

Average daylight in December /
Average sunshine in December
Congress, AZ

Average daylight in December / Average sunshine in December - Congress, AZ
  • Average daylight in December: 9h and 5min

The month with the longest days is June (Average daylight: 14h and 24min).
The month with the shortest days is December (Average daylight: 9h and 54min).

  • Average sunshine in December: 6h and 5min

The month with the most sunshine is June (Average sunshine: 12h and 6min).
The month with the least sunshine is December (Average sunshine: 6h and 48min).

Average sunshine days in December
Congress, AZ

Average sunshine days in December - Congress, AZ
  • Average sunshine days in December: 24.2 days

The month with the most sunshine days is May (28.3 days).
The month with the least sunshine days is August (17.1 days).

Average UV index in December
Congress, AZ

Average UV index in December - Congress, AZ
  • Average UV index in December: 3

The months with the highest UV index are June, July and August (UV index 8).
The month with the lowest UV index is December (UV index 3).

Average cloud cover in December
Congress, AZ

Average cloud cover in December - Congress, AZ
  • Average cloud cover in December: 21

The month with the most cloud cover is December (Cloud cover 21).
The month with the least cloud cover is June (Cloud cover 6).

Average visibility in December
Congress, AZ

Average visibility in December - Congress, AZ
  • 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).

Congress, Arizona, USA

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