National Water Conditions
U.S. Geological Survey
Environment Canada Climate Information Branch
JAN 1953
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FEB 1953
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MAR 1953
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APR 1953
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MAY 1953
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JUNE 1953
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JULY 1953
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AUG 1953
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SEP 1953
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OCT 1953
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NOV 1953
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DEC 1953
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