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Rock Falls weather in December (Illinois, United States of America)

Will it be warm or cold in Rock Falls this December? Discover if this is the best time for your journey with our detailed monthly weather breakdown.

Temperatures

In December, Rock Falls typically experiences very low temperatures and moderate snow/rainfall. December is a notable month of the winter season. Expect the temperatures during the day to hover around 2°C. At night, they will likely drop to about -7°C. This month is characterized by its cold weather, so make sure to wear sufficient layers to stay warm.

Precipitation

Rock Falls in December usually receives moderate snow/rainfall, averaging around 72 mm for the month. Historically, approximately 12 days this month are expected to have snow/rain.

If you prefer dry days with pleasant temperatures, December may not be the ideal month to visit Rock Falls. September typically offers the most optimal weather. In contrast, January, February, March, November and December tend to have less optimal conditions.

For an in-depth look at the yearly conditions, visit our specialized Rock Falls climate page with graphs.

 

Rock Falls, monthly averages in December

Min TemperatureMin Temperature -7°C  
Max TemperatureMax Temperature 2°C  
Chance of RainChance of Rain 40%  
PrecipitationPrecipitation 72 mm  
Rainy daysRainy days 12 days  

Where to go in the United States of America in December

Find out more about the weather in the United States of America and which places have the best travel conditions in this month.

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Legend perfect weather pleasant tolerable unpleasant poor
Perfect weather is subjective. On this map perfect weather has been defined with temperatures between 20°C and 29°C and not too much precipitation (less than 90 mm a month).

So, what should you wear in this month?

Wear a base layer in cold weather; this is the #1 thing you can do to increase your overall body temperature.

What To Do

We rated the following activities from 1 (least suitable) to 10 (best) to do.

Cycling
2/10
Walking
2/10
Barbeque
1/10
Camping
1/10
Outdoor sports
2/10

Interested in more climate information?

This site provides you with all the information you need about the climate in Rock Falls.

Our site offers climate and forecast data for every country in the world. Are you going to the United States of America? On this website you can find historical weather averages for many cities in the United States of America. Not sure yet where to go? We now have a tool which recommends destinations that suit your ideal travel conditions. Find out where to go with our weather planner.