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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 5/1/2024 (Report issued 5/1/2024 23:23)

Year Degree Days Base 41°F
for Alfalfa		 86-50 Degree Days
for Corn		 Dates evaluated
2024 417 265 Data from 3/1 through 5/1/2024.
Degree day data estimated for: 4/30 Includes forecast data for 5/1.
2023 259 177 Data from 3/1 through 5/1/2023.
Degree day data estimated for: 3/3; 4/29 - 4/30
2022 231 166 Data from 3/1 through 5/1/2022.
Degree day data estimated for: 4/11
2021 372 272 Data from 3/1 through 5/1/2021.
2020 205 136 Data from 3/1 through 5/1/2020.
2019 238 147 Data from 3/1 through 5/1/2019.
Average of 6 years 286.9 193.7 6 years with > 90% of data.
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