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Basil Growing Season for Kentucky

The NOAA National Climatic Data Center provides information to the public about spring and fall frost dates in the United States and the length of the expected growing season for each area. These statistics are calculated using data collected from 1971 to 2000, across 4300 weather stations located in every part of the country.

While informative, the statistics that NOAA provides is overwhelming. So, we took the liberty of extracting the most basic information that we feel would be useful to someone interested in growing basil outdoors.

The table below lists the date after which it should be safe to plant basil outdoors in each area of the state. This information is based on NOAA’s calculations for a 10% probability of temperatures falling below 36 degrees Fahrenheit. This means that, on average, there is only a 10% chance that you will see frost after this date. Also listed is the estimated length of the growing season. This is how many days you can expect to have before the risk of frost is greater than 10%.

Please use this information at your own risk. You must take into consideration many varying factors, for example, micro-climates or the presence of valleys and bodies of water, to determine your actual growing season.

StateCountyLast Frost DateLength of Growing Season
KYAllen4/29167
KYBallard5/08151
KYBarren5/16143
KYBoone5/15141
KYBoyd6/05111
KYBoyle5/10152
KYBreckinridge5/23125
KYBullitt5/20135
KYCaldwell5/10152
KYCalloway4/24168
KYCarlisle5/05156
KYCarroll5/14147
KYCarter5/28118
KYChristian5/05157
KYClay5/23123
KYEdmonson5/22131
KYFayette5/10152
KYFranklin5/16138
KYGallatin5/18140
KYGrant5/13144
KYGraves5/12146
KYGrayson5/14140
KYGreen5/18143
KYHarlan5/19144
KYHarrison5/18136
KYHenderson5/06154
KYHopkins5/08152
KYJefferson5/02164
KYKnox5/17139
KYLarue5/20137
KYLaurel5/17138
KYLee5/18138
KYLeslie5/19136
KYLivingston4/27165
KYLogan5/16144
KYMadison5/12146
KYMarion5/19136
KYMarshall4/27165
KYMason5/15142
KYMccracken5/03161
KYMccreary5/31124
KYMercer5/13147
KYMetcalfe5/19137
KYMontgomery5/14140
KYMorgan6/02109
KYNelson5/19138
KYOhio5/09150
KYPulaski5/18136
KYRockcastle5/19136
KYRowan5/20129
KYRussell5/18143
KYShelby5/27119
KYTrigg4/30162
KYWarren5/08155
KYWayne5/17142
KYWhitley5/15142