Annual mean
Annual mean of daily highs
Annual mean of daily lows
Grand Blanc city, Michigan
Official LSAD Designation: Grand Blanc city • Census GEOID: 2633280
• Genesee County
Climate Normals & Weather Observations
30-year climate normals (1991–2020) and weather observations for Grand Blanc city.
Reference Weather Station: GOODRICH, MI US (ID: USC00203278)
• Located 5.7 miles from community center
• Elevation: 277.4 m
| Month | Average High (°F) | Average Low (°F) | Mean Temp (°F) | Precipitation (in) |
|---|---|---|---|---|
| January | 30.1° | 15.3° | 22.7° | 2.15" |
| February | 33.4° | 16.0° | 24.7° | 1.48" |
| March | 43.6° | 23.5° | 33.6° | 1.98" |
| April | 56.4° | 34.2° | 45.3° | 2.97" |
| May | 68.5° | 46.2° | 57.3° | 3.71" |
| June | 77.7° | 55.6° | 66.7° | 3.08" |
| July | 81.7° | 58.9° | 70.3° | 3.69" |
| August | 80.1° | 58.3° | 69.2° | 3.24" |
| September | 73.6° | 50.8° | 62.2° | 2.99" |
| October | 60.3° | 40.1° | 50.2° | 2.67" |
| November | 46.7° | 30.8° | 38.7° | 2.32" |
| December | 35.4° | 21.9° | 28.7° | 1.92" |
Annual Temperature History
2010–2025, completed calendar years only.
NOAA station GOODRICH, MI US (ID: USC00203278) • 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 | 48.9 | 59.2 | 38.6 |
| 2011 | 48.2 | 58.1 | 38.3 |
| 2012 | 50.8 | 61.6 | 40.1 |
| 2013 | 46.8 | 56.6 | 37.1 |
| 2014 | Unavailable | Unavailable | Unavailable |
| 2015 | 47.5 | 57.8 | 37.2 |
| 2016 | 49.8 | 59.7 | 39.8 |
| 2017 | 49.0 | 58.6 | 39.3 |
| 2018 | 47.8 | 56.9 | 38.8 |
| 2019 | 47.0 | 56.3 | 37.8 |
| 2020 | 49.2 | 58.8 | 39.5 |
| 2021 | 49.6 | 59.1 | 40.1 |
| 2022 | 47.7 | 57.7 | 37.7 |
| 2023 | 49.6 | 58.6 | 40.5 |
| 2024 | 50.9 | 60.1 | 41.6 |
| 2025 | 47.7 | 57.7 | 37.7 |
Source: NOAA NCEI 1991–2020 U.S. Climate Normals, National Weather Service.