Preliminary Estimations: Powder

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Preliminary Estimations: Powder

Range for Annual Precipitation							12 - 40 in 305 - 1016 mm
Annual discharge per unit area							0.47 ft³/mi²0.005 m³/km²
Monthly flow as a percent of Annual Flow (%)
OCT	NOV	DEC	JAN	FEB	MAR	APR	MAY	JUNE	JULY	AUG	SEPT
2	2	3	4	7	12	18	21	17	7	4	3

*Note: Values for monthly flow as a percentage of annual flow do not add up to 100% due to overlapping of drainage areas (i.e., nesting) of some or all gages used to calculate the percentages.

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