Annual mean
Annual mean of daily highs
Annual mean of daily lows
Solon Mills CDP, Illinois
Official LSAD Designation: Solon Mills CDP • Census GEOID: 1770356
• McHenry County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Solon Mills CDP.
Reference Weather Station: PELL LAKE, WI US (ID: USC00476420)
• Located 6.8 miles from community center
• Elevation: 256.0 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 29.0° | 12.6° | 20.8° | 1.71" |
| February | 32.5° | 14.4° | 23.4° | 1.50" |
| March | 44.4° | 25.0° | 34.7° | 2.20" |
| April | 57.0° | 34.8° | 45.9° | 3.36" |
| May | 68.6° | 45.7° | 57.1° | 4.28" |
| June | 78.1° | 55.7° | 66.9° | 4.73" |
| July | 81.9° | 59.2° | 70.6° | 4.39" |
| August | 80.2° | 56.9° | 68.6° | 3.88" |
| September | 73.2° | 50.2° | 61.7° | 3.64" |
| October | 60.9° | 39.0° | 50.0° | 2.89" |
| November | 46.4° | 28.6° | 37.5° | 2.33" |
| December | 35.0° | 19.6° | 27.3° | 1.64" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station PELL LAKE, WI US (ID: USC00476420) • 6.8 miles from community center .
This is the same reference station used for monthly normals.
Source: NOAA NCEI Global Summary of the Year.
Annual temperature data table (°F)
| Year | Annual mean (°F) | Annual mean of daily highs (°F) | Annual mean of daily lows (°F) |
|---|---|---|---|
| 2010 | 49.9 | 59.8 | 40.0 |
| 2011 | 48.4 | 57.8 | 39.0 |
| 2012 | 51.6 | 62.4 | 40.7 |
| 2013 | 46.8 | 56.3 | 37.2 |
| 2014 | Unavailable | Unavailable | Unavailable |
| 2015 | 46.7 | 57.0 | 36.5 |
| 2016 | 48.5 | 58.5 | 38.5 |
| 2017 | 47.8 | 58.3 | 37.2 |
| 2018 | 45.8 | 55.7 | 35.9 |
| 2019 | 45.4 | 55.0 | 35.8 |
| 2020 | 47.8 | 57.7 | 37.9 |
| 2021 | 48.0 | 58.7 | 37.2 |
| 2022 | 45.9 | 56.2 | 35.7 |
| 2023 | 48.6 | 58.8 | 38.3 |
| 2024 | 49.9 | 60.4 | 39.4 |
| 2025 | 47.0 | 57.9 | 36.1 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.