IA
Coralville and Marion have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Coralville | Metric | Marion |
|---|---|---|
| 195 days | Sunny daysclear or partly cloudy skies | 193 days |
| 39 in | Precipitationper year | 39 in |
| 118 days | Wet daysrain or snow per year | 118 days |
| 29 in | Snowfallper year | 34 in |
| 19 days | Hot daysabove 90 °F | 18 days |
| 135 days | Freezing nightsat or below 32 °F | 135 days |
| 71% | Humidityaverage relative | 71% |
| 50 °F | Average temperatureyear round | 50 °F |
Monthly temperatures
Average daily high and low for each month, in °F. The gap between the two lines is what an ordinary day feels like across the year.
Daily highs
Daily lows
View monthly temperatures as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coralville high | 30 | 35 | 49 | 62 | 73 | 82 | 85 | 83 | 77 | 64 | 49 | 36 |
| Marion high | 30 | 35 | 49 | 63 | 74 | 82 | 85 | 83 | 77 | 64 | 48 | 35 |
| Coralville low | 14 | 17 | 29 | 39 | 51 | 61 | 65 | 62 | 53 | 41 | 29 | 19 |
| Marion low | 13 | 17 | 28 | 38 | 50 | 60 | 63 | 61 | 53 | 42 | 29 | 19 |
Monthly precipitation
Total rain plus melted snow for each month, in inches. Taller bars mean wetter months.
View monthly precipitation as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coralville | 1.5 | 1.8 | 2.7 | 4.4 | 4.8 | 5.1 | 3.7 | 3.8 | 3.9 | 2.9 | 2.3 | 1.9 |
| Marion | 1.5 | 1.7 | 2.6 | 4.3 | 4.9 | 5.1 | 3.8 | 3.7 | 4.0 | 2.9 | 2.3 | 1.9 |
Monthly sunny days
Days each month with clear or partly cloudy skies, so compare the same month between cities.
View monthly sunny days as a table
| City | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Coralville | 13 | 13 | 16 | 14 | 15 | 16 | 21 | 21 | 21 | 18 | 15 | 13 |
| Marion | 13 | 13 | 16 | 14 | 15 | 16 | 21 | 21 | 21 | 17 | 15 | 13 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Coralville vs another city
- Coralville vs Tiffin, IA
- Coralville vs North Liberty, IA
- Coralville vs Iowa City, IA
- Coralville vs Cedar Rapids, IA
- Coralville vs Hiawatha, IA
- Coralville vs New York, NY
- Coralville vs Los Angeles, CA
- Coralville vs Chicago, IL
- Coralville vs Houston, TX
- Coralville vs Phoenix, AZ
- Coralville vs Philadelphia, PA
Marion vs another city
- Marion vs Hiawatha, IA
- Marion vs Cedar Rapids, IA
- Marion vs Anamosa, IA
- Marion vs North Liberty, IA
- Marion vs Tiffin, IA
- Marion vs New York, NY
- Marion vs Los Angeles, CA
- Marion vs Chicago, IL
- Marion vs Houston, TX
- Marion vs Phoenix, AZ
- Marion vs Philadelphia, PA
About this data
Every figure on this page is a 30 year average computed from daily climate history for 1991-2020, using each city's own coordinates. Wet days count days with measurable precipitation, calibrated against the wet day counts in NOAA's published climate normals. Sunny days count clear plus partly cloudy days, defined as average cloud cover of 63 percent or less and calibrated against NOAA's published sky cover tables. Snowfall figures are model estimates anchored to NOAA station measurements near each city.
Weather data by Open-Meteo.com (CC BY 4.0). Contains modified Copernicus Climate Change Service information (ERA5, ERA5-Land).