Skip to main content
  • Michigan State University Extension
  • Michigan State University Ag Bio Research
  • Project GREEEN

Keeler Heat Stress Summary Assist Chart (Report issued 3/28/2024 7:58 )

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 43 0 0 0 0 1.11 3/14 to 3/28/2024
Missing temperature data: 3/28 (17 hours)
Missing rainfall data: 3/28 (17 hours)
2023 0 21 0 0 0 0 2.18 3/14 to 3/28/2023
2022 0 82 0 0 0 0 1.25 3/14 to 3/28/2022
2021 0 95 0 0 0 0 1.49 3/14 to 3/28/2021
Missing temperature data: 3/14 (1 hour)
Missing rainfall data: 3/14 (1 hour)
2020 0 39 0 0 0 0 2.54 3/14 to 3/28/2020
2019 0 36 0 0 0 0 1.02 3/14 to 3/28/2019
Average of 5 years, not including current year 0 54.7 0 0 0 0 1.7 2019 to 2023