Warm
Average highs sit around 28°C, giving warm days by monthly-average standards.
Weather Guide
Coralville, Iowa, United States Average Monthly Weather
Weather score51Mixed annual avg
Best months: July, August, June
Across the year, average daytime temperatures are around 15°C, sunshine averages 7.2h per day, and rainfall totals about 852mm.
Annual weather
Annual averages
Temp
15°C
Rain
852mm
Annual total
Sun
7.2h
Weather score
51
Mixed avg
Seasonal climate calendar
TemperatureTemp
RainRain
SunSun
Weather scoreWeather score
Trip feel
Showers
Rainfall averages 106mm, so some wet days are possible.
Bright
Sunshine averages 9.3h per day, so bright days are a strong part of the month.
Map
Weather map
Compare Coralville, Iowa, United States with nearby places by weather score, rain, sun, temperature, and swim conditions.
Temperature
August28°C average high
August is one of Coralville's warmest months, with daytime heat above the yearly average.
Warmest monthsMay to September
This stretch sets the upper range for average daytime heat.
Rain
August106mm average rain
August is one of Coralville's wettest months, so rain is likely to be a major planning factor.
Driest monthsJanuary to February and November to December
This is the drier part of the year, when outdoor plans usually need less weather flexibility.
Sun
August9.3 hours average sun
August is brighter than Coralville's yearly average, though the strongest sunshine usually sits closer to the peak months.
Brightest monthsMay to August
This stretch has the strongest sunshine in the monthly averages.
Weather score
August78 weather score
August scores above Coralville's yearly average, so the overall weather mix is stronger than most months.
Best weather monthsJune to August
These months have the strongest weather score in the monthly averages.
