IL
Crystal Lake and McHenry have remarkably similar climates.
The year at a glance
Averages from 30 years of climate history, 1991-2020
| Crystal Lake | Metric | McHenry |
|---|---|---|
| 182 days | Sunny daysclear or partly cloudy skies | 182 days |
| 36 in | Precipitationper year | 36 in |
| 125 days | Wet daysrain or snow per year | 125 days |
| 36 in | Snowfallper year | 35 in |
| 18 days | Hot daysabove 90 °F | 12 days |
| 137 days | Freezing nightsat or below 32 °F | 142 days |
| 71% | Humidityaverage relative | 71% |
| 49 °F | Average temperatureyear round | 49 °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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crystal Lake high | 31 | 35 | 46 | 59 | 71 | 80 | 84 | 82 | 74 | 62 | 47 | 35 |
| McHenry high | 31 | 35 | 46 | 59 | 70 | 80 | 84 | 82 | 76 | 63 | 48 | 36 |
| Crystal Lake low | 14 | 16 | 26 | 37 | 48 | 58 | 62 | 61 | 52 | 42 | 30 | 20 |
| McHenry low | 13 | 16 | 26 | 37 | 47 | 57 | 62 | 60 | 52 | 40 | 29 | 19 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crystal Lake | 2.0 | 1.9 | 2.5 | 4.3 | 4.3 | 3.8 | 3.4 | 3.6 | 3.0 | 3.0 | 2.4 | 2.1 |
| McHenry | 2.0 | 1.9 | 2.5 | 4.3 | 4.3 | 3.8 | 3.4 | 3.6 | 3.0 | 3.0 | 2.4 | 2.1 |
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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Crystal Lake | 11 | 12 | 14 | 14 | 15 | 16 | 20 | 20 | 20 | 16 | 14 | 12 |
| McHenry | 11 | 12 | 14 | 14 | 15 | 16 | 20 | 20 | 20 | 16 | 14 | 12 |
Keep comparing
Nearby cities and popular picks for each side of this matchup. Any two cities can be compared from the home page.
Crystal Lake vs another city
- Crystal Lake vs Lake in the Hills, IL
- Crystal Lake vs Cary, IL
- Crystal Lake vs Algonquin, IL
- Crystal Lake vs Huntley, IL
- Crystal Lake vs Woodstock, IL
- Crystal Lake vs New York, NY
- Crystal Lake vs Los Angeles, CA
- Crystal Lake vs Chicago, IL
- Crystal Lake vs Houston, TX
- Crystal Lake vs Phoenix, AZ
- Crystal Lake vs Philadelphia, PA
McHenry vs another city
- McHenry vs Johnsburg, IL
- McHenry vs Lakemoor, IL
- McHenry vs Island Lake, IL
- McHenry vs Volo, IL
- McHenry vs Woodstock, IL
- McHenry vs New York, NY
- McHenry vs Los Angeles, CA
- McHenry vs Chicago, IL
- McHenry vs Houston, TX
- McHenry vs Phoenix, AZ
- McHenry 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).