-3 to 25°C
temperature
2638 hours
sunshine per day
444 mm
rain
184 days
dry
136 days
rain
45 days
snow

Climate of Waukegan

Waukegan has a continental climate. It is warm in the summer and cold in the winter. The average annual temperature for Waukegan is 12° degrees and there is about 444 mm of rain in a year. It is dry for 166 days a year with an average humidity of 79% and an UV-index of 3.

Climate averages for the whole year

  • Day: the average daily temperature during the day is between -3°C and 25°C
  • Night:the average nighttime temperature is between -8°C and 18°C
  • Rain: it rains 136 days and there is a total of approximately 444 mm rainfall
  • Snow: it snows an average of 45 days per year
  • Sun hours: throughout the year there are 2638 sun hours
Maximum temperature: between -3°C and 25°C
Warmest month: 25°C in July
Coldest month: -3°C in January
Night temperature: between -8°C and 18°C
Dry days: 184 days
Days with rain: 136 days
Days with snow: 45 days
Total rain sum: 444 mm
Hours of sunshine: 2638 hours

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Temperature graph

This graph shows the average maximum temperature (red) and minimum temperature (blue) for Waukegan.

Precipitation graph

This graph shows the average amount of rainfall per month for Waukegan.

Climate table of Waukegan

In this climate table you can see at a glance what the average weather per month is for Waukegan. The data has been collected over a 30-year period, from which an average per month has been derived. From year to year the differences may be larger or smaller, but with this climate table you have a good idea of what the weather for Waukegan might be like in a given month.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Day temp. (°C) -3 -1 5 10 16 21 25 25 22 15 8 1
Night temp. (°C) -8 -6 -1 4 10 15 18 18 15 8 2 -4
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Precipitation (mm) 23 24 25 39 46 58 49 66 35 37 22 20
Days with rain 6 5 10 14 15 14 16 15 12 12 9 8
Days with snow 12 10 6 2 - - - - - 1 4 10
Dry days 13 13 15 14 16 16 15 16 18 18 17 13
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
Sun hours per day 4 4 6 8 9 10 11 11 9 6 5 4
Wind force (Bft) 3 3 3 3 3 3 3 3 3 3 3 3
UV-index 1 2 2 3 4 5 6 6 4 3 2 1

Best time to visit Waukegan

The best time to visit Waukegan in the state of Illinois is from June through September. In this period you have a pleasant temperature and little precipitation. The highest average temperature in Waukegan is 25°C in July and the lowest is -3°C in January.

Climate of Waukegan by month

What is the average climate in a given month for Waukegan? Click on a month to see all monthly averages for sunshine, maximum and minimum temperatures, percent chance of rain per day, snowfall and number of rainy days.

Waukegan weather experiences

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