December weather forecast
Blackwater, AZ

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Weather in December

The first month of the winter, December, is still a refreshing month in Blackwater, Arizona, with an average temperature ranging between max 63.1°F (17.3°C) and min 47.1°F (8.4°C).

Temperature

December, recording an average high temperature of 63.1°F (17.3°C) and a low temperature of 47.1°F (8.4°C), is Blackwater's coldest month.

Humidity

December is the most humid month, with an average relative humidity of 44%.

Rainfall

In December, in Blackwater, the rain falls for 5.4 days. Throughout December, 0.83" (21mm) of precipitation is accumulated. Throughout the year, there are 50.9 rainfall days, and 6.89" (175mm) of precipitation is accumulated.

Daylight

With an average of 10h and 0min of daylight, December has the shortest days of the year.
On the first day of the month, sunrise is at 7:11 am and sunset at 5:19 pm. On the last day of December, sunrise is at 7:29 am and sunset at 5:30 pm MST.

Sunshine

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

UV index

December is the month with the lowest UV index in Blackwater, with an average maximum UV index of 3. A UV Index value of 3 to 5 symbolizes a medium health hazard from unprotected exposure to Sun's UV rays for ordinary individuals.
Note: The maximum daily UV index, 3 in December, converts into the following recommendations:
Make use of precautions - Shielding skin and eyes from injury is a requirement. To guard against the harmful effects of the Sun, minimize exposure during midday. Always opt for UVA and UVB-resistant sunglasses on radiant days.
Updated: Aug 27, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

What are the coldest months?

In Blackwater, December is known for its average lowest temperatures, reaching a high of 63.1°F (17.3°C) and a low of 47.1°F (8.4°C).

What is the temperature in December?

In December, in Blackwater, the average high-temperature is 63.1°F (17.3°C), and the average low-temperature is 47.1°F (8.4°C).

What is the most humid month?

With an average relative humidity of 44%, December is the most humid month.

What is the average humidity in December?

In Blackwater, the average relative humidity in December is 44%.

How many days does it rain in December?

In December, the rain falls for 5.4 days. Throughout December, 0.83" (21mm) of precipitation is accumulated.

What is the month with the shortest days?

The month with the shortest days in Blackwater is December, with an average of 10h and 0min of daylight.

What is the average length of the day in December?

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

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:11 am and sunset at 5:19 pm. On the last day of the month, sunrise is at 7:29 am and sunset at 5:30 pm MST.

What is the month with the least sunshine?

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

How many hours of sunshine does Blackwater have in December?

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

When is the lowest UV index?

With an average maximum UV index of 3, December is the month with the lowest UV index.

How high is the UV index in December in Blackwater?

In Blackwater, 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 exposure to Sun's UV rays.
Average humidity
Average rainfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility

Average temperature in December
Blackwater, AZ

Average temperature in December - Blackwater, AZ
  • Average high temperature in December: 63.1°F

The warmest month (with the highest average high temperature) is July (102°F).
The month with the lowest average high temperature is December (63.1°F).

  • Average low temperature in December: 47.1°F

The month with the highest average low temperature is August (82.8°F).
The coldest month (with the lowest average low temperature) is January (46.8°F).

Average pressure in December
Blackwater, AZ

Average pressure in December - Blackwater, AZ
  • Average pressure in December: 30.05"Hg

The month with the highest atmospheric pressure is January (30.09"Hg).
The month with the lowest atmospheric pressure is June (29.82"Hg).

Average wind speed in December
Blackwater, AZ

Average wind speed in December - Blackwater, AZ
  • Average wind speed in December: 5.4mph

The windiest months (with the highest average wind speed) are April and May (7.3mph).
The calmest month (with the lowest average wind speed) is December (5.4mph).

Average humidity in December
Blackwater, AZ

Average humidity in December - Blackwater, AZ
  • Average humidity in December: 44%

The month with the highest relative humidity is December (44%).
The month with the lowest relative humidity is June (17%).

Average rainfall in December
Blackwater, AZ

Average rainfall in December - Blackwater, AZ
  • Average rainfall in December: 0.83"

The wettest month (with the highest rainfall) is February (0.91").
The driest month (with the least rainfall) is June (0.08").

Average rainfall days in December
Blackwater, AZ

Average rainfall days in December - Blackwater, AZ
  • Average rainfall days in December: 5.4 days

The month with the highest number of rainy days is July (8.3 days).
The month with the least rainy days is June (1.3 days).

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

Average daylight in December / Average sunshine in December - Blackwater, AZ
  • 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: 6h and 5min

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

Average sunshine days in December
Blackwater, AZ

Average sunshine days in December - Blackwater, AZ
  • Average sunshine days in December: 25.4 days

The month with the most sunshine days is May (29.2 days).
The month with the least sunshine days is July (19.8 days).

Average UV index in December
Blackwater, AZ

Average UV index in December - Blackwater, 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
Blackwater, AZ

Average cloud cover in December - Blackwater, 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
Blackwater, AZ

Average visibility in December - Blackwater, 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).

Blackwater, Arizona, USA

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