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  • Michigan State University Extension
  • Michigan State University Ag Bio Research
  • Project GREEEN

Chatham Historical Degree Day Summary (Numerical Integration method) from 3/1 to 4/25 (Report issued 4/25/2024 18:03)

Year Degree Days Base 42°F Degree Days Base 45°F Degree Days Base 50°F Dates evaluated
2024 108 70 29 Current data from 3/1 through 4/25/2024 5PM.
2023 98 76 51 Data from 3/1 through 4/25/2023.
2022 40 24 9 Data from 3/1 through 4/25/2022.
2021 128 83 37 Data from 3/1 through 4/25/2021.
2020 32 17 4 Data from 3/1 through 4/25/2020.
2019 45 27 10 Data from 3/1 through 4/25/2019.
Average of 5 years, not including current year 68.5 45.3 22.3 5 years with > 90% of data.
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