Weather By Day

December Waterloo Weather 
December Waterloo Weather
Record High: 67°F
Normal High: 31°F
Normal Low: 12°F
Record Low: -29°F
Avg Monthly Rain: 1.11"
Rec 1 Day Rain: 1.68"
Avg Monthly Snow: 7.1"
Rec 1 Day Snow: 10.4"

Waterloo Weather In December

The record high December temperature in Waterloo Iowa for the last 62 years was 67 degrees Fahrenheit, registered on December 5, 1998, and the standard high is 31. In the last 62 years the highest reported temperature in Waterloo for December was -29 registered on December 25, 2000, while the regular low temperature for a given day during the month is 12.

United States NWS historical Waterloo December Weather data records that on December 24, 1983, the high temperature did not exceed -15 degrees Fahrenheit, the lowest high measured in Waterloo in the past 62 years. Weather Service records additionally indicate that on December 15, 2001, the low for the day was not measured below 55 degrees, the highest low temperature recorded in Waterloo in the last 62 years.

National Weather Service data shows that the high temperature in Waterloo on December First averages 36 degrees Fahrenheit and the high on the final day of December averages 28 degrees. The daily low temperature in Waterloo on December First averages 19 degrees Fahrenheit and the low on the last day of December averages 11 degrees.

Waterloo normally receives an average of 1.11 inches of rain during December. The most rain recorded in a single day, as shown by December Waterloo Weather data, was 1.68 inches on December 27, 1982. Waterloo averages 7.1 inches of snow in December. The highest snowfall on a single day in December was 10.4 inches on December 1, 1985.