2019 in Grand Rapids, Michigan, is already the 11th wettest year on record through October, displacing 2018 from that rank.
Precipitation to date is already 44.71 inches when long term mean to date is just 29.48 inches.
On the summer heat front 2019 was nothing like 2018, which was the 7th warmest summer on record.
Cooling Degree Days to date come in at 742 compared with the long term mean to date of 699, about 6.2% above the mean. The record hot summer was in 1921 with 1200 CDD, with the record cool summer in 1992 with just 316 CDD. 2018 CDD came in at 1003.
On the winter cold side of things, while 2018-19 was utterly normal (6722 vs. mean 6705), the 2019-20 season is starting off with Heating Degree Days over 12% below the mean. Most of that was due to September average temperature exceeding the mean average by 3.6 degrees F. Long term mean HDD in September is 134 but came in at just 45.
Grand Rapids, MI, Climate Update October 2019
Max temp 77, mean max 79
Min temp 31, mean min 28
Av temp 50.2, mean av 51.3
Precip 7.13, mean 3.03
CDD 8, mean 9
CDD to date 742, mean to date 699
HDD 459, mean 424
HDD to date (July-Oct) 512, mean to date 585
Snow 0.3, mean 0.4
Grand Rapids, MI, Climate Update September 2019
Max temp 88, mean max 88
Min temp 48, mean min 37
Av temp 66.4, mean av 62.8
Precip 7.32, mean 3.6
CDD 92, mean 76
HDD 45, mean 134
