December weather forecast
Ava, IL

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Weather in December

December, the first month of the winter in Ava, is also a frosty month, with an average temperature ranging between max 43.7°F (6.5°C) and min 31.1°F (-0.5°C).

Temperature

Ava in December undergoes a mild reduction in the average high-temperature, shifting from November's fresh 53.8°F (12.1°C) to a frosty 43.7°F (6.5°C). Ava witnesses a consistent average low-temperature of 31.1°F (-0.5°C) throughout December.

Humidity

In December, the average relative humidity in Ava is 77%.

Rainfall

In Ava, in December, during 8.9 rainfall days, 2.56" (65mm) of precipitation is typically accumulated. Throughout the year, in Ava, there are 159.4 rainfall days, and 37.2" (945mm) of precipitation is accumulated.

Snowfall

January through April, October through December are months with snowfall in Ava. In Ava, in December, during 3.8 snowfall days, 1.26" (32mm) of snow is typically accumulated. Throughout the year, in Ava, there are 20.9 snowfall days, and 8.11" (206mm) of snow is accumulated.

Daylight

With an average of 9h and 36min of daylight, December has the shortest days of the year.
On the first day of December in Ava, sunrise is at 6:55 am and sunset at 4:39 pm. On the last day of the month, sunrise is at 7:13 am and sunset at 4:49 pm CST.

Sunshine

The average sunshine in December in Ava is 4.9h.

UV index

The months with the lowest UV index in Ava are January, February and December, with an average maximum UV index of 2. A UV Index of 2, and less, symbolizes a minimal health hazard from exposure to the Sun's UV radiation for the ordinary person.
Note: A maximum UV index of 2 in December translates into the following recommendations:
Most individuals face no significant issues with extended sun exposure, but it is always essential to protect children, babies, and those with sensitive skin. The intensity of the Sun's UV radiation during midday suggests reducing time spent outdoors. For a sun-safe wardrobe, go for clothes that are tightly woven and generously sized. Remember to consider! The UV radiation from the Sun can be intensified nearly twice by the reflection of snow.
Updated: Feb 12, 2024
Published by: Weather U.S. | About Us
Data Sources | Weather Forecasting & Climate

Frequently asked questions

How cold is December in Ava?

The high-temperature in Ava during December is 43.7°F (6.5°C) and the low-temperature is 31.1°F (-0.5°C). In August, the average heat index (a.k.a. 'real feel', 'apparent temperature'), which calculates the temperature value influenced by the moisture in the air, is estimated at 96.8°F (36°C).

What is the average humidity in December in Ava?

The average relative humidity in December in Ava, Illinois, is 77%.

How many days does it rain in December in Ava?

In Ava, in December, it is raining for 8.9 days, with typically 2.56" (65mm) of accumulated precipitation.

How many days does it snow in December in Ava?

In Ava, in December, snow falls for 3.8 days, with typically accumulated 1.26" (32mm) of snow.

What is the month with the shortest days in Ava?

With an average of 9h and 36min of daylight, December has the shortest days of the year in Ava.

How many hours of daylight does Ava have in December?

In December, the average day length in Ava is 9h and 35min.

When is the sunrise / sunset in December in Ava?

In December, on the first day of the month, sunrise is at 6:55 am and sunset at 4:39 pm. On the last day of the month, in Ava, Illinois, sunrise is at 7:13 am and sunset at 4:49 pm CST.

How long on average sun shines in December in Ava?

The average sunshine duration in December is 4.9h.

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

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

What is the UV index reading in December in Ava?

In December, the average daily maximum UV index in Ava is 2. A UV Index of 2, and less, symbolizes a low health risk from unsafe 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
Ava, IL

Average temperature in December - Ava, IL
  • Average high temperature in December: 43.7°F

The warmest month (with the highest average high temperature) is July (87.3°F).
The month with the lowest average high temperature is January (39°F).

  • Average low temperature in December: 31.1°F

The month with the highest average low temperature is July (68.5°F).
The coldest month (with the lowest average low temperature) is January (25.7°F).

Average pressure in December
Ava, IL

Average pressure in December - Ava, IL
  • Average pressure in December: 30.14"Hg

The month with the highest atmospheric pressure is January (30.16"Hg).
The month with the lowest atmospheric pressure is June (29.93"Hg).

Average wind speed in December
Ava, IL

Average wind speed in December - Ava, IL
  • Average wind speed in December: 8.8mph

The windiest month (with the highest average wind speed) is January (9.5mph).
The calmest months (with the lowest average wind speed) are July and August (5.7mph).

Average humidity in December
Ava, IL

Average humidity in December - Ava, IL
  • Average humidity in December: 77%

The month with the highest relative humidity is May (79%).
The month with the lowest relative humidity is October (71%).

Average rainfall in December
Ava, IL

Average rainfall in December - Ava, IL
  • Average rainfall in December: 2.56"

The wettest month (with the highest rainfall) is May (4.49").
The driest months (with the least rainfall) are February and September (2.13").

Average rainfall days in December
Ava, IL

Average rainfall days in December - Ava, IL
  • Average rainfall days in December: 8.9 days

The month with the highest number of rainy days is May (18.3 days).
The month with the least rainy days is January (8.3 days).

Average snowfall in December
Ava, IL

Average snowfall in December - Ava, IL
  • Average snowfall in December: 1.26"

The month with the highest snowfall is January (2.64").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Ava, IL

Average snowfall days in December - Ava, IL
  • Average snowfall days in December: 3.8 days

The month with the highest number of snowfall days is January (7.1 days).
The months with the least snowfall days are May, June, July, August and September (0 days).

Average daylight in December /
Average sunshine in December
Ava, IL

Average daylight in December / Average sunshine in December - Ava, IL
  • Average daylight in December: 9h and 4min

The month with the longest days is June (Average daylight: 14h and 42min).
The month with the shortest days is December (Average daylight: 9h and 36min).

  • Average sunshine in December: 4h and 5min

The month with the most sunshine is June (Average sunshine: 10h and 30min).
The month with the least sunshine is January (Average sunshine: 4h and 36min).

Average sunshine days in December
Ava, IL

Average sunshine days in December - Ava, IL
  • Average sunshine days in December: 18.2 days

The month with the most sunshine days is December (18.2 days).
The month with the least sunshine days is May (10.4 days).

Average UV index in December
Ava, IL

Average UV index in December - Ava, IL
  • Average UV index in December: 2

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January, February and December (UV index 2).

Average cloud cover in December
Ava, IL

Average cloud cover in December - Ava, IL
  • 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 June (Cloud cover 28).

Average visibility in December
Ava, IL

Average visibility in December - Ava, IL
  • 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).

Ava, Illinois, USA

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