Weather By Day

July Weather In Sioux City  
July Sioux City Weather
Record High: 108°F
Normal High: 86°F
Normal Low: 63°F
Record Low: 42°F
Avg Monthly Rain: 3.3"
Rec 1 Day Rain: 5.5"

Sioux City Weather In July

The highest recorded temperature for Sioux City Iowa for the past 70 years in July was 108 degrees Fahrenheit, most recently registered on July 13, 1995, and the regular high is 86. The coldest July day in Sioux City for the past 70 years was 42 most recently encountered on July 31, 1971, while the average low temperature is 63.

United States NWS historical Sioux City July Weather data records that on July 29, 1981, the high temperature did not exceed 61 degrees Fahrenheit, the lowest high measured in Sioux City in the past 70 years. NWS weather data additionally shows that on July 15, 1969, the lowest recorded temperature on that day did not drop below 80 degrees, the highest low measured in Sioux City in the last 70 years.

National Weather Service data shows that the high temperature in Sioux City on July First averages 85 degrees Fahrenheit and the high on the final day of July averages 86 degrees. The low recorded temperature in Sioux City on July First averages 63 degrees Fahrenheit and the low temperature on the final day of July averages 63 degrees.

Sioux City usually receives an average of 3.3 inches of rain during the month. The most precipitation recorded on a single day in July, according to July Sioux City Weather data, was 5.5 inches on July 17, 1972.