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Mr. Michael Grochala <br /> June 3, 2025 <br /> Page 3 <br /> minimal risk of flooding despite increases in extreme rainfall events.4 However, special flood hazard areas were identified near water <br /> bodies and waterways where flooding has an increased chance of occurring. Development within special flood hazard areas is required to <br /> follow FEMA permitting requirements. <br /> Cooling Degree Days <br /> Degree days are based on the assumption that when the outside temperature is 65°F, heating or cooling is not needed to be comfortable, <br /> as defined by the National Weather Service. Degree days are the difference between the daily temperature mean and 65°F. If the <br /> temperature is above 65°F, 65 is subtracted from the mean and the result is the cooling degree days. For example, if the mean <br /> temperature over a 24-hour period is 70°F, then there have been 5 cooling degree days.5 Cooling degree days are used as a proxy to <br /> estimate cooling needs for buildings. According to Heat Vulnerability in Minnesota, the number of cooling days in 2019 for Anoka County <br /> was 379. The number of cooling days in 2050 for Anoka County is projected to be 453 and 598 for RCP 4.5 and 8.5, respectively.6 <br /> 'Available at: Flood Data Viewers and Geospatial Data I FEMA.gov <br /> 'Available at: https://www.weather.gov/key/climate heat cool <br /> 6 Available at: https://maps.umn.edu/climatehealthtool/heat app/ <br /> "M:\027919-000\Admin\Docs\Climate\MEMO Climate 2025-02-24.docx" <br /> Page 109 of 240 <br />