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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 4/25/2024 (Report issued 4/25/2024 3:24)

Year Degree Days Base 41°F
for Alfalfa		 86-50 Degree Days
for Corn		 Dates evaluated
2024 343 225 Data from 3/1 through 4/25/2024.
Includes forecast data for 4/25.
2023 254 182 Data from 3/1 through 4/25/2023.
2022 236 182 Data from 3/1 through 4/25/2022.
2021 320 261 Data from 3/1 through 4/25/2021.
Degree day data estimated for: 4/2
2020 164 135 Data from 3/1 through 4/25/2020.
2019 239 170 Data from 3/1 through 4/25/2019.
Degree day data estimated for: 3/10; 3/21
Average of 6 years 259.3 192.5 6 years with > 90% of data.
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