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Basil Growing Season for North Carolina

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
NCAlamance5/01160
NCAnson4/24178
NCAshe6/1586
NCAvery6/07107
NCBeaufort4/20185
NCBertie5/08153
NCBladen5/01171
NCBrunswick4/28170
NCBuncombe5/18139
NCBurke5/06158
NCCabarrus5/02164
NCCaldwell5/12148
NCCarteret4/26186
NCChatham5/15144
NCCherokee5/26128
NCChowan4/20187
NCCleveland5/08153
NCColumbus5/01170
NCCraven4/18186
NCCumberland4/30173
NCDare4/09227
NCDavidson5/10149
NCDuplin4/30165
NCDurham5/09155
NCEdgecombe5/03164
NCFranklin5/20131
NCGaston5/06164
NCGraham5/14146
NCGuilford5/02161
NCHarnett5/02164
NCHaywood6/06108
NCHenderson5/14143
NCHyde4/26182
NCIredell5/17139
NCJackson5/25128
NCJohnston5/04157
NCLenoir5/08158
NCLincoln5/07154
NCMacon5/28126
NCMadison5/24129
NCMartin4/26175
NCMcdowell5/16142
NCMecklenburg4/30173
NCMontgomery4/30165
NCNew Hanover4/15191
NCNorthampton5/05159
NCOnslow5/07160
NCOrange5/12146
NCPamlico4/30166
NCPasquotank4/26176
NCPender4/30165
NCPerson5/10147
NCPitt4/25175
NCPolk5/06162
NCRandolph5/03167
NCRichmond5/09152
NCRobeson5/12146
NCRockingham5/08156
NCRowan5/11150
NCSampson5/02166
NCScotland5/01167
NCStanly5/11152
NCStokes5/14143
NCSurry5/15141
NCSwain6/01113
NCTransylvania5/27128
NCUnion5/07155
NCVance5/14143
NCWake5/07161
NCWarren5/14147
NCWashington5/07159
NCWatauga6/02119
NCWayne4/25178
NCWilkes5/17140
NCWilson5/01166
NCYadkin5/15141
NCYancey6/1497