Oak Park and River Forest have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Oak Park | Metric | River Forest |
|---|---|---|
| 179 days | Sunny daysclear or partly cloudy skies | 179 days |
| 37 in | Precipitationper year | 37 in |
| 130 days | Wet daysrain or snow per year | 130 days |
| 39 in | Snowfallper year | 39 in |
| 17 days | Hot daysabove 90 °F | 18 days |
| 108 days | Freezing nightsat or below 32 °F | 112 days |
| 71% | Humidityaverage relative | 71% |
| 52 °F | Average temperatureyear round | 52 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oak Park high | 32 | 36 | 47 | 58 | 69 | 79 | 84 | 82 | 75 | 63 | 49 | 37 |
| River Forest high | 32 | 36 | 47 | 60 | 71 | 81 | 85 | 83 | 76 | 63 | 49 | 37 |
| Oak Park low | 19 | 22 | 31 | 41 | 51 | 61 | 67 | 66 | 59 | 46 | 35 | 25 |
| River Forest low | 19 | 22 | 31 | 41 | 51 | 62 | 67 | 66 | 58 | 46 | 35 | 25 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oak Park | 2.3 | 2.1 | 2.6 | 4.2 | 4.1 | 3.6 | 3.4 | 3.6 | 2.9 | 3.3 | 2.6 | 2.3 |
| River Forest | 2.3 | 2.1 | 2.6 | 4.2 | 4.1 | 3.6 | 3.4 | 3.6 | 2.9 | 3.3 | 2.6 | 2.3 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Oak Park | 10 | 11 | 14 | 14 | 15 | 17 | 20 | 20 | 20 | 16 | 13 | 11 |
| River Forest | 10 | 11 | 14 | 14 | 15 | 17 | 20 | 20 | 20 | 16 | 13 | 11 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Oak Park vs another city
- Oak Park vs Forest Park, IL
- Oak Park vs Elmwood Park, IL
- Oak Park vs Maywood, IL
- Oak Park vs Berwyn, IL
- Oak Park vs Cicero, IL
- Oak Park vs New York, NY
- Oak Park vs Los Angeles, CA
- Oak Park vs Chicago, IL
- Oak Park vs Houston, TX
- Oak Park vs Phoenix, AZ
- Oak Park vs Philadelphia, PA
River Forest vs another city
- River Forest vs Maywood, IL
- River Forest vs Forest Park, IL
- River Forest vs Elmwood Park, IL
- River Forest vs River Grove, IL
- River Forest vs Melrose Park, IL
- River Forest vs New York, NY
- River Forest vs Los Angeles, CA
- River Forest vs Chicago, IL
- River Forest vs Houston, TX
- River Forest vs Phoenix, AZ
- River Forest 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).