USGS

National Water Conditions

U.S. Geological Survey
Environment Canada Climate Information Branch

JAN 1957 || FEB 1957 || MAR 1957 || APR 1957 || MAY 1957 || JUNE 1957 ||
JULY 1957 || AUG 1957 || SEP 1957 || OCT 1957 || NOV 1957 || DEC 1957 ||

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