Extreme Temperature

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Extreme high temperatures in the summer stress forests and wildlife. These days increase water loss from transpiration and can damage trees. Additionally, extreme high temperature days increase the risk and severity of wildfires.

To measure extreme high temperature days the FHI looks at temperature measurements from a combination of on-the-ground sensors and satellite data. We count the number of days each summer that exceed 90th percentile in a normal summer about 10 days will meet this criteria.