Grand Rapids, Michigan, Climate Update for April 2018
Max temp 74, Mean Max temp 79
Min temp 16, Mean Min temp 22
Av temp 40.1, Mean Av temp 46.5
Precip 2.85, Mean precip 3.30
Snowfall 6.0, Mean snowfall 2.4
Heating Degree Days 740, Mean HDD 553
Using HDD, the cold season to date has been just 1% warmer than the mean. Season to date HDD were 6339 vs. season to date mean of 6403.