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

Stephenson Historical Degree Day Summary (Numerical Integration method) from 3/1 to 4/26 (Report issued 4/26/2024 17:34)

Year Degree Days Base 42°F Degree Days Base 45°F Degree Days Base 50°F Dates evaluated
2024 171 119 61 Current data from 3/1 through 4/26/2024 5PM.
2023 162 131 93 Data from 3/1 through 4/26/2023.
2022 69 46 22 Data from 3/1 through 4/26/2022.
2021 184 123 57 Data from 3/1 through 4/26/2021.
2020 68 43 17 Data from 3/1 through 4/26/2020.
2019 96 64 28 Data from 3/1 through 4/26/2019.
Average of 5 years, not including current year 115.6 81.1 43.1 5 years with > 90% of data.
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