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

Aetna / Fremont Heat Stress Summary Assist Chart (Report issued 4/19/2024 4:31 )

Year Degree Days Base 40 F
Number of days with DD > 35		 Degree Days Base 40 F
Total DD		 Temperatures greater than 90 F
Number of hours		 Temperatures greater than 90 F
Number of days		 Night temperatures greater than 70 F (10 PM - 8 AM)
Number of hours		 Night temperatures greater than 70 F (10 PM - 8 AM)
Number of days		 Rainfall (in.) Time period assessed
2024 0 152 0 0 0 0 0.74 4/5 to 4/19/2024
Missing temperature data: 4/19 (20 hours)
Missing rainfall data: 4/19 (20 hours)
2023 0 185 0 0 0 0 3.27 4/5 to 4/19/2023
Estimated rainfall data: 4/5 to 4/15 (264 hours)
2022 0 58 0 0 0 0 1.76 4/5 to 4/19/2022
Estimated temperature data: 4/14 to 4/19 (121 hours)
Estimated rainfall data: 4/14 to 4/19 (121 hours)
2021 0 160 0 0 0 0 2.82 4/5 to 4/19/2021
2020 0 68 0 0 0 0 0.83 4/5 to 4/19/2020
2019 0 26 0 0 0 0 1.17 4/5 to 4/19/2019
Missing temperature data: 4/5 to 4/9 (120 hours)
Missing rainfall data: 4/5 to 4/9 (120 hours)
Average of 5 years, not including current year 0 99.4 0 0 0 0 1.97 2019 to 2023
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