USGS

National Water Conditions

U.S. Geological Survey
Environment Canada Climate Information Branch

JAN 1961 || FEB 1961 || MAR 1961 || APR 1961 || MAY 1961 || JUNE 1961 ||
JULY 1961 || AUG 1961 || SEP 1961 || OCT 1961 || NOV 1961 || DEC 1961 ||

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