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Shapefile
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Freeze-free period
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General
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1961
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1. Annual Mean Length of Freeze-Free Period, Arizona, 1961-1990
1961. National Climatic Data Center (U.S.). This element was computed using data from the National Climatic Data Center's Cooperative Summary of the Day (TD-3200) database (NCDC, 1995). The o... National Climatic Data Center (U.S.).
2. Annual Median Length of Freeze-Free Period, Arizona, 1961-1990
1961. National Climatic Data Center (U.S.). This element was computed using data from the National Climatic Data Center's Cooperative Summary of the Day (TD-3200) database (NCDC, 1995). The o... National Climatic Data Center (U.S.).