Annual mean
Annual mean of daily highs
Annual mean of daily lows
Mequon city, Wisconsin
Official LSAD Designation: Mequon city • Census GEOID: 5551150
• Ozaukee County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Mequon city.
Reference Weather Station: GERMANTOWN, WI US (ID: USC00473058)
• Located 5.7 miles from community center
• Elevation: 259.1 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 27.3° | 11.3° | 19.3° | 1.57" |
| February | 30.7° | 13.5° | 22.1° | 1.44" |
| March | 41.9° | 23.7° | 32.8° | 1.90" |
| April | 54.2° | 34.2° | 44.2° | 3.84" |
| May | 66.3° | 44.9° | 55.6° | 3.95" |
| June | 76.3° | 54.3° | 65.3° | 4.37" |
| July | 80.8° | 59.5° | 70.1° | 3.92" |
| August | 79.1° | 57.7° | 68.4° | 3.80" |
| September | 72.2° | 49.9° | 61.1° | 3.22" |
| October | 59.2° | 38.7° | 48.9° | 2.64" |
| November | 45.1° | 27.8° | 36.4° | 2.00" |
| December | 33.0° | 17.9° | 25.4° | 1.73" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station GERMANTOWN, WI US (ID: USC00473058) • 5.7 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 | 47.5 | 57.3 | 37.7 |
| 2011 | 46.1 | 55.3 | 36.9 |
| 2012 | 49.6 | 60.1 | 39.2 |
| 2013 | 44.1 | 54.1 | 34.1 |
| 2014 | 42.3 | 52.1 | 32.5 |
| 2015 | 46.1 | 56.2 | 36.0 |
| 2016 | 47.9 | 57.3 | 38.4 |
| 2017 | 46.9 | 56.8 | 37.1 |
| 2018 | 45.4 | 55.0 | 35.9 |
| 2019 | 44.6 | 54.2 | 35.0 |
| 2020 | 46.9 | 56.5 | 37.3 |
| 2021 | 47.6 | 57.9 | 37.2 |
| 2022 | 45.3 | 55.1 | 35.5 |
| 2023 | 48.4 | 58.1 | 38.7 |
| 2024 | Unavailable | Unavailable | 39.1 |
| 2025 | 46.3 | 56.8 | 35.9 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.