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Lake Zurich, IL weather and climate

Lake County, IL · population 19,727 · about 883 ft elevation

Everything below is a 30 year average for 1991-2020, computed from daily climate history at Lake Zurich's own coordinates.

The year at a glance

Sunny days
181
clear or partly cloudy, per year
Precipitation
37 in
per year
Wet days
130
rain or snow per year
Snowfall
41 in
per year
Hot days
10
above 90 °F
Freezing nights
137
at or below 32 °F
Humidity
71%
average relative
Average temperature
48 °F
year round

Monthly temperatures

Average daily high and low for each month, in °F.

Daily highDaily low
20406080JanMarMayJulSepNovDaily high, Jan: 29 °FDaily high, Feb: 33 °FDaily high, Mar: 45 °FDaily high, Apr: 57 °FDaily high, May: 68 °FDaily high, Jun: 78 °FDaily high, Jul: 82 °FDaily high, Aug: 80 °FDaily high, Sep: 74 °FDaily high, Oct: 61 °FDaily high, Nov: 47 °FDaily high, Dec: 35 °FDaily low, Jan: 14 °FDaily low, Feb: 17 °FDaily low, Mar: 26 °FDaily low, Apr: 37 °FDaily low, May: 48 °FDaily low, Jun: 58 °FDaily low, Jul: 63 °FDaily low, Aug: 61 °FDaily low, Sep: 53 °FDaily low, Oct: 42 °FDaily low, Nov: 30 °FDaily low, Dec: 20 °F
View monthly temperatures as a table
Monthly temperatures (°F)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Daily high293345576878828074614735
Daily low141726374858636153423020

Monthly precipitation

Total rain plus melted snow for each month, in inches.

0.02.04.0JanMarMayJulSepNovLake Zurich, Jan: 2.3 inLake Zurich, Feb: 2.1 inLake Zurich, Mar: 2.6 inLake Zurich, Apr: 4.4 inLake Zurich, May: 4.2 inLake Zurich, Jun: 3.6 inLake Zurich, Jul: 3.3 inLake Zurich, Aug: 3.6 inLake Zurich, Sep: 2.9 inLake Zurich, Oct: 3.3 inLake Zurich, Nov: 2.6 inLake Zurich, Dec: 2.4 in
View monthly precipitation as a table
Monthly precipitation (inches)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Lake Zurich2.32.12.64.44.23.63.33.62.93.32.62.4

Monthly sunny days

Days each month with clear or partly cloudy skies.

01020JanMarMayJulSepNovLake Zurich, Jan: 11 daysLake Zurich, Feb: 11 daysLake Zurich, Mar: 14 daysLake Zurich, Apr: 14 daysLake Zurich, May: 15 daysLake Zurich, Jun: 17 daysLake Zurich, Jul: 20 daysLake Zurich, Aug: 20 daysLake Zurich, Sep: 19 daysLake Zurich, Oct: 16 daysLake Zurich, Nov: 13 daysLake Zurich, Dec: 11 days
View monthly sunny days as a table
Monthly sunny days (days)
CityJanFebMarAprMayJunJulAugSepOctNovDec
Lake Zurich111114141517202019161311

Compare Lake Zurich with another city

Nearby cities and popular picks. Any two cities can be compared from the home page.

See weather for every covered Illinois city

About this data

Figures are 30 year averages for 1991-2020. 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).