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

Romeo Historical Degree Day Summary (Numerical Integration method) from 3/1 to 4/25 (Report issued 4/25/2024 1:36)

Year Degree Days Base 42°F Degree Days Base 45°F Degree Days Base 50°F Dates evaluated
2024 267 192 101 Current data from 3/1 through 4/25/2024 1AM.
2023 235 178 113 Data from 3/1 through 4/25/2023.
2022 185 134 77 Data from 3/1 through 4/25/2022.
2021 330 248 144 Data from 3/1 through 4/25/2021.
2020 150 94 37 Data from 3/1 through 4/25/2020.
Temperature data estimated for: 3/1/2020 Midnight-1AM - 3/8/2020 Midnight-1AM (169 hours); 3/8/2020 2-3AM - 3/25/2020 3-4PM (422 hours); Total of 591 estimated hours
2019 190 137 73 Data from 3/1 through 4/25/2019.
Temperature data estimated for: 4/24/2019 3-4PM - 4/24/2019 4-5PM (2 hours); 4/25/2019 2-3PM (1 hour); Total of 3 estimated hours
Average of 5 years, not including current year 217.8 158.3 88.9 5 years with > 90% of data.
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