Saturday, September 2, 2017

Grand Rapids, Michigan, climate update for August 2017

The back of summer was broken last month, and August showed it:

Max Temp: Actual 88, Mean 92
Min Temp: Actual 47, Mean 47
Av Temp:   Actual 68.7, Mean 70.2
Precip:       Actual 1.72, Mean 3.04
CDD:         Actual 140, Mean 188.

The average of the last twelve ONI values is -0.266, the lingering effects of the five month long Weak La Nina, indicating a very slightly cool ocean in the tropical Pacific over the last year.

I used 22% fewer kWh this August than last, but stayed comfortably cool nonetheless.