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  • Michigan State University Extension
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Hart Heat Stress Summary Assist Chart (Report issued 4/26/2024 10:40 )

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 0 116 0 0 0 0 0.8 4/12 to 4/26/2024
Missing temperature data: 4/26 (14 hours)
Missing rainfall data: 4/26 (14 hours)
2023 0 146 0 0 0 0 0.94 4/12 to 4/26/2023
2022 0 104 0 0 6 1 2.04 4/12 to 4/26/2022
2021 0 49 0 0 0 0 0.27 4/12 to 4/26/2021
2020 0 49 0 0 0 0 0.76 4/12 to 4/26/2020
2019 0 108 0 0 0 0 1.58 4/12 to 4/26/2019
Average of 5 years, not including current year 0 91.1 0 0 1.2 0.2 1.12 2019 to 2023
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