USGS

National Water Conditions

U.S. Geological Survey
Environment Canada Climate Information Branch

JAN 1981 || FEB 1981 || MAR 1981 || APR 1981 || MAY 1981 || JUNE 1981 ||
JULY 1981 || AUG 1981 || SEP 1981 || OCT 1981 || NOV 1981 || DEC 1981 ||

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