December weather forecast
Wasco, IL

Share

Weather in December

The first month of the winter, December, is still a cold month in Wasco, Illinois, with an average temperature varying between 23.5°F (-4.7°C) and 34.2°F (1.2°C).

Temperature

With the onset of December, Wasco's average high-temperature adjusts, receding from November's chilly 45.5°F (7.5°C) to a wintry 34.2°F (1.2°C). December nights experience a consistent temperature drop to a freezing cold 23.5°F (-4.7°C).

Humidity

In Wasco, the average relative humidity in December is 82%.

Rainfall

November and December are months with the least rain when the rain falls for 5 days and typically aggregates up to 0.39" (10mm) of rain.

Snowfall

January through April, October through December are months with snowfall in Wasco, Illinois. In Wasco, during December, snow falls for 5.6 days and regularly aggregates up to 0.35" (9mm) of snow. Throughout the year, there are 28.3 snowfall days, and 3.74" (95mm) of snow is accumulated.

Daylight

With an average of 9h and 12min of daylight, December has the shortest days of the year.
On the first day of December, sunrise is at 7:02 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:32 pm CST.

Sunshine

In December, the average sunshine is 4.1h.

UV index

January and December, with an average maximum UV index of 1, are months with the lowest UV index. A UV Index of 2, and less, symbolizes a low threat to health from exposure to the Sun's UV radiation for the average person.
Note: A typical high UV index of 1 in December suggests the following recommendations:
Sun exposure does not present considerable issues for many, yet infants, fair-skinned people, and children necessitate constant protection. The most potent solar radiation is around mid-day, so one should minimize exposure to direct sunlight during this period. Prioritize a wide-brim hat for comprehensive sun defense for your face, neck, eyes, and ears. Take to heart! Snow reflection can almost magnify the Sun's UV radiation twofold.

Frequently asked questions

How cold is December?

During December, Wasco experiences an average high-temperature of 34.2°F (1.2°C) and a low-temperature of 23.5°F (-4.7°C). The average heat index (a.k.a. 'real feel', 'feels like'), which takes the relative humidity and factors it into the air temperature reading, in July is estimated at 86°F (30°C).

What is the average humidity in December?

The average relative humidity in December in Wasco is 82%.

What is the driest month?

November and December are months with the least rain when the rain falls for 5 days and typically aggregates up to 0.39" (10mm) of rain.

How many days does it rain in December?

In Wasco, during December, the rain falls for 5 days and regularly aggregates up to 0.39" (10mm) of precipitation.

How much does it snow in December?

In Wasco, in December, during 5.6 snowfall days, 0.35" (9mm) of snow is typically accumulated.

What is the month with the shortest days?

December has the shortest days of the year, with an average of 9h and 12min of daylight.

How many hours of daylight does Wasco have in December?

In Wasco, the average day length in December is 9h and 11min.

What time are sunrise and sunset in December in Wasco?

On the first day of December in Wasco, sunrise is at 7:02 am and sunset at 4:23 pm. On the last day of the month, sunrise is at 7:21 am and sunset at 4:32 pm CST.

How long on average sun shines in December?

The average sunshine duration in December is 4.1h.

What are the months with the lowest UV index?

January and December, with an average maximum UV index of 1, are months with the lowest UV index.

What is the UV index intensity in December?

In December, the average daily maximum UV index is 1. A UV Index value of 2, and less, symbolizes a minimal health vulnerability 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
Wasco, IL

Average temperature in December - Wasco, IL
  • Average high temperature in December: 34.2°F

The warmest month (with the highest average high temperature) is July (81°F).
The month with the lowest average high temperature is January (27.9°F).

  • Average low temperature in December: 23.5°F

The month with the highest average low temperature is July (64.2°F).
The coldest month (with the lowest average low temperature) is January (16.2°F).

Average pressure in December
Wasco, IL

Average pressure in December - Wasco, IL
  • Average pressure in December: 30.09"Hg

The month with the highest atmospheric pressure is January (30.11"Hg).
The month with the lowest atmospheric pressure is June (29.92"Hg).

Average wind speed in December
Wasco, IL

Average wind speed in December - Wasco, IL
  • Average wind speed in December: 9.2mph

The windiest month (with the highest average wind speed) is January (9.9mph).
The calmest month (with the lowest average wind speed) is August (6.1mph).

Average humidity in December
Wasco, IL

Average humidity in December - Wasco, IL
  • Average humidity in December: 82%

The months with the highest relative humidity are January and February (83%).
The month with the lowest relative humidity is October (74%).

Average rainfall in December
Wasco, IL

Average rainfall in December - Wasco, IL
  • Average rainfall in December: 0.39"

The wettest month (with the highest rainfall) is May (1.26").
The driest months (with the least rainfall) are November and December (0.39").

Average rainfall days in December
Wasco, IL

Average rainfall days in December - Wasco, IL
  • Average rainfall days in December: 5 days

The month with the highest number of rainy days is May (12.4 days).
The month with the least rainy days is January (3.4 days).

Average snowfall in December
Wasco, IL

Average snowfall in December - Wasco, IL
  • Average snowfall in December: 0.35"

The month with the highest snowfall is January (1.14").
The months with the least snowfall are May, June, July, August and September (0").

Average snowfall days in December
Wasco, IL

Average snowfall days in December - Wasco, IL
  • Average snowfall days in December: 5.6 days

The month with the highest number of snowfall days is January (7.6 days).
The months with the least snowfall days are June, July, August and September (0 days).

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

Average daylight in December / Average sunshine in December - Wasco, IL
  • Average daylight in December: 9h and 1min

The month with the longest days is June (Average daylight: 15h and 12min).
The month with the shortest days is December (Average daylight: 9h and 12min).

  • Average sunshine in December: 4h and 1min

The month with the most sunshine is July (Average sunshine: 9h and 54min).
The month with the least sunshine is January (Average sunshine: 3h and 42min).

Average sunshine days in December
Wasco, IL

Average sunshine days in December - Wasco, IL
  • Average sunshine days in December: 22.4 days

The month with the most sunshine days is December (22.4 days).
The month with the least sunshine days is June (13.3 days).

Average UV index in December
Wasco, IL

Average UV index in December - Wasco, IL
  • Average UV index in December: 1

The months with the highest UV index are June, July and August (UV index 6).
The months with the lowest UV index are January and December (UV index 1).

Average cloud cover in December
Wasco, IL

Average cloud cover in December - Wasco, IL
  • Average cloud cover in December: 59

The month with the most cloud cover is January (Cloud cover 62).
The month with the least cloud cover is September (Cloud cover 32).

Average visibility in December
Wasco, IL

Average visibility in December - Wasco, IL
  • Average visibility in December: 6mi

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

Wasco, Illinois, USA

Weather forecast for your location

1. Click Locate me button
2. Allow the app to use your location