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Decatur County, TN (shown in white) has 333.88 mi² of land area and 11 mi² of water resources. The county is bordered by:
The county's elevations range from a low of 357.6' to a high of 629.9', with a weighted average of 476.2' above sea level.
Temperatures range from average lows around 27.5°F to average highs around 89.7°F. A year-round daily temperature averages 59.6°F. Average annual precipation is 58.3". With these temperatures and precipation, the majority of the county scores as an 7A using the USDA Plant Hardiness Zone Map (the standard by which gardeners and growers can determine which perennial plants are most likely to thrive in a location).
The estimated population of Decatur County is 11,847 with 5,078 households. These households are spread across 2 unique municipalties (not all shown).
