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

Historical Degree Day Summary for Field Crops from 3/1/2024 to 4/20/2024 (Report issued 4/20/2024 8:04)

Year Degree Days Base 41°F
for Alfalfa		 86-50 Degree Days
for Corn		 Dates evaluated
2024 274 172 Data from 3/1 through 4/20/2024.
Includes forecast data for 4/20.
2023 217 153 Data from 3/1 through 4/20/2023.
Degree day data estimated for: 3/3
2022 121 95 Data from 3/1 through 4/20/2022.
Degree day data estimated for: 4/11
2021 296 219 Data from 3/1 through 4/20/2021.
2020 134 92 Data from 3/1 through 4/20/2020.
2019 142 90 Data from 3/1 through 4/20/2019.
Average of 6 years 197.2 136.7 6 years with > 90% of data.
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