December weather forecast
Cornville, AZ

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Weather in December

The first month of the winter, December, is also a frosty month in Cornville, Arizona, with an average temperature fluctuating between 30.9°F (-0.6°C) and 49.5°F (9.7°C).

Temperature

Cornville's coldest weather arrives in December, when temperatures average a high of 49.5°F (9.7°C) and a low of 30.9°F (-0.6°C).

Humidity

The months with the highest humidity are January and December, with an average relative humidity of 58%.

Rainfall

The month with the most rainfall is December, when the rain falls for 7.6 days and typically aggregates up to 1.26" (32mm) of precipitation.

Snowfall

Months with snowfall in Cornville are January through April, September, November and December. In December, it is snowing for 1.9 days. Throughout December, 1.18" (30mm) of snow is accumulated. Throughout the year, there are 5.7 snowfall days, and 5.47" (139mm) of snow is accumulated.

Daylight

The month with the shortest days is December, with an average of 9h and 54min of daylight.
On the first day of the month, sunrise is at 7:17 am and sunset at 5:16 pm. On the last day of December, sunrise is at 7:34 am and sunset at 5:27 pm MST.

Sunshine

With an average of 6.9h of sunshine, December has the least sunshine of the year.

UV index

February and December, with an average maximum UV index of 2, are months with the lowest UV index. A UV Index estimate of 2, and below, represents a low threat to health from unprotected exposure to Sun's UV rays for the average person.
Note: In December, a daily maximum UV index of 2 leads to the following instructions:
The majority are not significantly affected by prolonged sun exposure. Infants, children, and those with fair skin must always have protection. The solar radiation is most powerful near the mid-day, so the exposure to the direct Sun should be reduced accordingly. Opt for tightly woven and loose clothing to enhance protection from the Sun. Note this! The Sun's UV radiation can nearly be doubled by the reflection off snow.

Frequently asked questions

What time of the year is the coldest?

With average temperatures fluctuating between a high of 49.5°F (9.7°C) and a low of 30.9°F (-0.6°C), December stands out as the coldest month.

What are the temperatures in December?

In Cornville, in December, the average high-temperature is 49.5°F (9.7°C), and the average low-temperature is 30.9°F (-0.6°C). In September, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which combines relative humidity and air temperature, is calculated to be 80.6°F (27°C).

What are the most humid months?

The months with the highest humidity are January and December, with an average relative humidity of 58%.

What is the average humidity in December?

In Cornville, the average relative humidity in December is 58%.

What is the wettest month in Cornville?

The month with the most rainfall is December, when the rain falls for 7.6 days and typically aggregates up to 1.26" (32mm) of precipitation.

How many days does it rain in December?

In Cornville, during December, the rain falls for 7.6 days and regularly aggregates up to 1.26" (32mm) of precipitation.

How many days does it snow in December?

In Cornville, in December, snow falls for 1.9 days, with typically accumulated 1.18" (30mm) of snow.

What is the month with the shortest days?

The month with the shortest days is December, with an average of 9h and 54min of daylight.

How many hours of daylight does Cornville have in December?

The average day length in December is 9h and 52min.

When is the sunrise / sunset in December?

On the first day of December, sunrise is at 7:17 am and sunset at 5:16 pm. On the last day of the month, sunrise is at 7:34 am and sunset at 5:27 pm MST.

What is the month with the least sunshine?

December has the least sunshine of the year, with an average of 6.9h of sunshine.

How many hours of sunshine does Cornville have in December?

In December, the average sunshine duration is 6.9h.

When is the lowest UV index?

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

What is the UV index reading in December?

The average daily maximum UV index in December is 2. A UV Index of 2, and less, symbolizes a low health threat 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
Cornville, AZ

Average temperature in December - Cornville, AZ
  • Average high temperature in December: 49.5°F

The warmest month (with the highest average high temperature) is July (88.5°F).
The month with the lowest average high temperature is December (49.5°F).

  • Average low temperature in December: 30.9°F

The months with the highest average low temperature are July and August (63.9°F).
The coldest month (with the lowest average low temperature) is December (30.9°F).

Average pressure in December
Cornville, AZ

Average pressure in December - Cornville, AZ
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.13"Hg).
The month with the lowest atmospheric pressure is June (29.85"Hg).

Average wind speed in December
Cornville, AZ

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

The windiest month (with the highest average wind speed) is April (7.3mph).
The calmest month (with the lowest average wind speed) is August (4.5mph).

Average humidity in December
Cornville, AZ

Average humidity in December - Cornville, AZ
  • Average humidity in December: 58%

The months with the highest relative humidity are January and December (58%).
The month with the lowest relative humidity is June (23%).

Average rainfall in December
Cornville, AZ

Average rainfall in December - Cornville, AZ
  • Average rainfall in December: 1.26"

The wettest month (with the highest rainfall) is December (1.26").
The driest month (with the least rainfall) is June (0.04").

Average rainfall days in December
Cornville, AZ

Average rainfall days in December - Cornville, AZ
  • Average rainfall days in December: 7.6 days

The month with the highest number of rainy days is July (11.2 days).
The month with the least rainy days is June (1 days).

Average snowfall in December
Cornville, AZ

Average snowfall in December - Cornville, AZ
  • Average snowfall in December: 1.18"

The month with the highest snowfall is February (2.6").
The months with the least snowfall are May, June, July, August and October (0").

Average snowfall days in December
Cornville, AZ

Average snowfall days in December - Cornville, AZ
  • Average snowfall days in December: 1.9 days

The month with the highest number of snowfall days is December (1.9 days).
The months with the least snowfall days are May, June, July and August (0 days).

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

Average daylight in December / Average sunshine in December - Cornville, 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 months with the most sunshine are June and August (Average sunshine: 12h and 12min).
The month with the least sunshine is December (Average sunshine: 6h and 54min).

Average sunshine days in December
Cornville, AZ

Average sunshine days in December - Cornville, AZ
  • Average sunshine days in December: 21.7 days

The month with the most sunshine days is June (28.3 days).
The month with the least sunshine days is August (15.2 days).

Average UV index in December
Cornville, AZ

Average UV index in December - Cornville, AZ
  • Average UV index in December: 2

The month with the highest UV index is June (UV index 7).
The months with the lowest UV index are February and December (UV index 2).

Average cloud cover in December
Cornville, AZ

Average cloud cover in December - Cornville, AZ
  • Average cloud cover in December: 22

The month with the most cloud cover is December (Cloud cover 22).
The month with the least cloud cover is June (Cloud cover 6).

Average visibility in December
Cornville, AZ

Average visibility in December - Cornville, 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).

Cornville, Arizona, USA

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