Coralville, IA Weather & Climate Normals
What a normal year in Coralville actually looks like
On the 30-year record NOAA keeps for Coralville, IA, the comfort score comes out to 42/100, strongly seasonal: Comfortable weather is limited to a shorter window; summers, winters, or precipitation swing wide. Only 4 months a year land in the 55–75°F range this site treats as mild.
How much Coralville's weather actually swings
Average temperatures in Coralville run from 23°F in Jan up to 76°F in Jul, a 53°F seasonal swing, one of the widest gaps in this dataset.
Coralville, month by month
| Month | Avg high | Avg low | Precip |
|---|---|---|---|
| Jan | 31°F | 15°F | 1.04in |
| Feb | 36°F | 19°F | 1.21in |
| Mar | 50°F | 30°F | 2.21in |
| Apr | 63°F | 40°F | 3.76in |
| May | 73°F | 52°F | 4.48in |
| Jun | 83°F | 62°F | 5.29in |
| Jul | 86°F | 66°F | 3.91in |
| Aug | 84°F | 63°F | 3.94in |
| Sep | 78°F | 54°F | 3.24in |
| Oct | 64°F | 42°F | 2.98in |
| Nov | 49°F | 30°F | 2.17in |
| Dec | 36°F | 20°F | 1.45in |
If you're timing a visit, May, Jun, Aug, and Sep are Coralville's mildest stretch; if you're moving there, you should plan around Jul's heat and Jan's cold instead.
How wet Coralville actually gets
Coralville averages 35.68in of precipitation a year across roughly 115 days with measurable rain or snow; the nearest NOAA station does not record snowfall, so no snow figure is shown rather than guessed.
Coralville against the rest of the country
Out of 4876 cities scored here, Coralville comes in at 4199; within IA alone it ranks 48 of 85. Population is about 23,959.
Checking the actual forecast
These figures come from Iowa City Muni Ap, IA US, the NOAA station 5.3 miles from Coralville, averaged over 30 years, not tomorrow's forecast.
More on how this is worked out
Why some cities show no snow or rain figure · Why this uses the nearest NOAA station