DCHP-1 Online
sap weather 
spring weather, characterized by cold nights and warm days, that starts the sap running in maple trees and ushers in the sugaring season.
See also: sugaring season sugar weather
- 1955 Sap weather may be here, but syrup makers are getting a very poor run of sap.
- 1963 Yes, "Sap weather" is really the only sure sign of spring.
- 1955 Sap weather may be here, but syrup makers are getting a very poor run of sap.