Environmental Science
This is used as a guide to planting and for determining the approximate date for harvesting crops:

Mean annual temperature
Heating degree-days
Cooling degree-days
Growing degree-days

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Environmental Science
The wind-chill factor:

Indicates the temperature at which water freezes on exposed skin
Takes into account humidity and air temperature in expressing the current air temperature
Tells farmers when to protect crops from a freeze
Relates body heat loss with wind to an equivalent temperature with no wind
Determines how low the air temperature will be on any given day

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