Climate averages 1991–2020
Waukegan weather
in April.
A cold, wet month: the 7th warmest and the wettest of the year.
Long-term climate patterns, not a forecast for a particular trip.
April is a cold month in Waukegan: daytime highs average 7.9°C and nights cool to about 3.6°C. By daytime temperature it is the 7th warmest of the 12 months.
Expect about 121 mm of rain on roughly 12 days, which makes April a wet month (the wettest month of the year). Daylight, from sunrise to sunset, lasts about 13 h 20 min on an average April day.
The nearest other city in this atlas is Kenosha (25 km away). In April its highs average 7.5°C, about as warm as Waukegan, with 114 mm of rain.
Among the 498 cities listed in the United States, Waukegan ranks joint 493rd of 498 for the warmest April highs and joint 469th of 498 for the driest April (rainfall, lowest first). The mean April high of those 498 cities is 19.4°C; Waukegan is 11.5°C cooler than that mean.
From April to May, average highs rise by 6.6°C to 14.5°C, and monthly rainfall falls from 121 mm to 105 mm.
The annual picture
April in context
Monthly precipitation
Average total · mmAverages from hourly ERA5 reanalysis data. Actual weather varies from year to year. How these numbers are calculated
Every month, side by side
Waukegan climate table
| Month | Average highHigh / low | Average low | Precipitation mm/month | Wet days ≥1 mm/day | Daylight hours/dayDaylight h/day |
|---|---|---|---|---|---|
| January | -1.3°C-6.5°C | -6.5°C | 75 | 9.8 | 9.59 h |
| February | -0.7°C-6.3°C | -6.3°C | 63 | 7.8 | 10.511 h |
| March | 3.0°C-2.0°C | -2.0°C | 75 | 9.8 | 11.912 h |
| April, selected | 7.9°C3.6°C | 3.6°C | 121 | 12.0 | 13.313 h |
| May | 14.5°C10.1°C | 10.1°C | 105 | 11.7 | 14.615 h |
| June | 21.6°C17.3°C | 17.3°C | 88 | 10.5 | 15.215 h |
| July | 25.3°C21.2°C | 21.2°C | 78 | 10.5 | 14.915 h |
| August | 24.8°C21.0°C | 21.0°C | 96 | 10.6 | 13.914 h |
| September | 21.2°C17.1°C | 17.1°C | 83 | 9.5 | 12.513 h |
| October | 14.5°C10.3°C | 10.3°C | 101 | 10.4 | 11.111 h |
| November | 7.4°C3.4°C | 3.4°C | 87 | 10.0 | 9.810 h |
| December | 1.8°C-2.4°C | -2.4°C | 78 | 10.0 | 9.19 h |
Precipitation (rain or snow, as water) is the average of the 30 separate monthly totals. A wet day is a local calendar day with at least 1 mm of precipitation. Daylight is the calculated sunrise-to-sunset length, not measured sunshine.
Compare places
April in nearby cities
- Kenosha in AprilUnited States · 25 kmHigh 7.5°C · Low 3.4°C · 114 mm rain
- Arlington Heights in AprilUnited States · 33 kmHigh 13.0°C · Low 4.0°C · 110 mm rain
- Evanston in AprilUnited States · 38 kmHigh 10.9°C · Low 4.4°C · 108 mm rain
- Racine in AprilUnited States · 41 kmHigh 7.4°C · Low 3.3°C · 111 mm rain
- Schaumburg in AprilUnited States · 42 kmHigh 14.0°C · Low 3.8°C · 110 mm rain
- Elgin in AprilUnited States · 51 kmHigh 14.4°C · Low 4.2°C · 114 mm rain
- Cicero in AprilUnited States · 58 kmHigh 13.7°C · Low 4.4°C · 114 mm rain
- Chicago in AprilUnited States · 59 kmHigh 12.3°C · Low 4.4°C · 114 mm rain
Read the numbers correctly
Climate, not a promise.
These patterns help compare months. They cannot tell you the weather on a specific day of your trip.
Sources, method and limitsHow these numbers are made (what the highs, lows and rain days mean, the sources and the model cell used for Waukegan) is explained once on the Waukegan year overview and on the Sources, method and limits page.