Grand Rapids, Michigan, Climate Update for May 2018
Max temp 94, Mean Max temp 86
Min temp 40, Mean Min temp 32
Av temp 64.8, Mean Av temp 57.9
Precip 5.64, Mean precip 3.46
Snowfall 0, Mean snowfall .2
Heating Degree Days 105, Mean HDD 252
Cooling Degree Days 108, Mean CDD 39
The cooling season has started off like a rocket, 240% warmer than mean to date based on CDD. With one month left to go in the heating season, the heating season as a result has now been 3.1% warmer than mean to date based on HDD.
