Waukegan and Winthrop Harbor have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Waukegan | Metric | Winthrop Harbor |
|---|---|---|
| 181 days | Sunny daysclear or partly cloudy skies | 180 days |
| 37 in | Precipitationper year | 36 in |
| 130 days | Wet daysrain or snow per year | 129 days |
| 39 in | Snowfallper year | 38 in |
| 10 days | Hot daysabove 90 °F | 9 days |
| 133 days | Freezing nightsat or below 32 °F | 128 days |
| 73% | Humidityaverage relative | 75% |
| 49 °F | Average temperatureyear round | 48 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Waukegan high | 30 | 34 | 44 | 55 | 67 | 76 | 82 | 80 | 74 | 61 | 48 | 36 |
| Winthrop Harbor high | 31 | 34 | 44 | 55 | 66 | 76 | 81 | 80 | 73 | 61 | 47 | 36 |
| Waukegan low | 16 | 18 | 27 | 35 | 47 | 57 | 63 | 62 | 54 | 43 | 31 | 22 |
| Winthrop Harbor low | 16 | 19 | 28 | 36 | 46 | 56 | 63 | 62 | 54 | 43 | 32 | 22 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Waukegan | 2.3 | 2.1 | 2.6 | 4.4 | 4.2 | 3.6 | 3.3 | 3.6 | 2.9 | 3.3 | 2.6 | 2.4 |
| Winthrop Harbor | 2.2 | 2.0 | 2.5 | 4.3 | 3.9 | 3.4 | 3.1 | 3.6 | 2.9 | 3.2 | 2.6 | 2.4 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Waukegan | 11 | 11 | 14 | 14 | 15 | 17 | 20 | 20 | 19 | 16 | 13 | 11 |
| Winthrop Harbor | 10 | 12 | 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.
Waukegan vs another city
- Waukegan vs Park City, IL
- Waukegan vs Gurnee, IL
- Waukegan vs North Chicago, IL
- Waukegan vs Beach Park, IL
- Waukegan vs Gages Lake, IL
- Waukegan vs Lake Bluff, IL
- Waukegan vs New York, NY
- Waukegan vs Los Angeles, CA
- Waukegan vs Chicago, IL
- Waukegan vs Houston, TX
- Waukegan vs Phoenix, AZ
- Waukegan vs Philadelphia, PA
Winthrop Harbor vs another city
- Winthrop Harbor vs Zion, IL
- Winthrop Harbor vs Beach Park, IL
- Winthrop Harbor vs Pleasant Prairie, WI
- Winthrop Harbor vs Kenosha, WI
- Winthrop Harbor vs Park City, IL
- Winthrop Harbor vs New York, NY
- Winthrop Harbor vs Los Angeles, CA
- Winthrop Harbor vs Chicago, IL
- Winthrop Harbor vs Houston, TX
- Winthrop Harbor vs Phoenix, AZ
- Winthrop Harbor 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).