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. Author manuscript; available in PMC: 2016 Dec 1.
Published in final edited form as: J Occup Environ Med. 2015 Dec;57(12):1299–1304. doi: 10.1097/JOM.0000000000000552

Table 1.

Heat Index For Harnett, Johnston, and Sampson Counties, NC, for June, July, and August, 2013.

Number of Days by County
Heat Index Harnett Johnston Sampson

n % n % n %
Less than 80°F 3 3.3 5 5.4 1 1.1
Caution: 80°F - 90°F
Fatigue possible with prolonged exposure and/or physical activity 37 40.2 38 41.3 23 25.0
Extreme Caution: 90°F - 103°F
Heat stroke, heat cramps, or heat exhaustion possible with prolonged exposure and/or physical activity 52 56.5 49 53.3 59 64.1
Danger: 103°F - 124°F
Heat cramps or heat exhaustion likely, and heat stroke possible with prolonged exposure and/or physical activity - - 9 9.8
Extreme Danger: 125°F or higher
Heat stroke highly likely - - -