Grass Lake Boat Launch

Best time to visit Grass Lake Boat Launch

Best months: April–October. Best months have typical highs of 55–85 °F, lows of 30 °F or warmer (32 °F where the station doesn't record snow), at most one snowy day and no more than 12 wet days.

1. Jan

   31° / 13°

   15 wet

2. Feb

   34° / 13°

   12 wet

3. Mar

   46° / 21°

   11 wet

4. Apr

   59° / 32°

   12 wet

5. May

   71° / 44°

   12 wet

6. Jun

   80° / 53°

   10 wet

7. Jul

   84° / 56°

   9 wet

8. Aug

   82° / 55°

   10 wet

9. Sep

   75° / 48°

   10 wet

10. Oct

    62° / 37°

    12 wet

11. Nov

    48° / 27°

    13 wet

12. Dec

    36° / 19°

    15 wet

Typical high / low (°F) and days with rain or snow, 1991–2020. Measured at Greenville 2 Nne, MI, 8.4 mi away at 882 ft. This station doesn't record snowfall. Source: NOAA NCEI U.S. Climate Normals 1991–2020.