Last Updated: 03-JUN-2017
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|NWS PA||DISCUSSION PA||WSR-88D PA||Intellicast NE|
|NWS MD||DISCUSSION MD||WSR-88D MD||intellicast SE|
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0 - 10 Saturated soil. Occurs a day or two after rain 10 - 30 Soil is adequately wet 30 - 60 Usual range to irrigate or water. Irrigate at the upper end of this range in cool humid climates 60 - 100 Usual range to irrigate 100 - 200 Soil is becoming dangerously dry for maximum production.
Movement of water to the air from sources such as the soil, canopy interception, and waterbodies
HEATING DEGREE DAY - The number of degrees that a day's average temperature is below 65 Fahrenheit, the temperature below which buildings need to be heated. COOLING DEGREE DAY - The number of degrees that a day's average temperature is above 65 Fahrenheit and people start to use air conditioning to cool their buildings.