NC Cooperative Extension Resources

Introduction

Growing season is defined as the number of days without an air temperature of 32°F or lower. The standard deviation is an important statistic to consider along with the average date. The standard deviation tells the amount of dispersion around the average. The average growing season length plus and minus one standard deviation gives the range of growing season length into which 68% of all observed growing seasons will fall. For example, the average growing season in Albemarle is 200 days (Table 1). Further, 68% of all the growing seasons will be from 187 to 213 days long (200 minus 13 and 200 plus 13).

Below the growing season data are listed by Station Name (Table 1) and by County (Table 2).

There are several published references for North Carolina climate data. These references are available from the North Carolina State University Department of Communication Services, Publications, Box 7603, Raleigh, NC 27695-7603; (919) 515-2861.

  • Weather and Climate in North Carolina AG-375 ($2.50)
  • Probabilities of Dry Periods in North Carolina AG-411 ($2.00)
  • Risk of Frost and Freeze Damage for North Carolina Fruit Crops AG-403 (free)
  • Low-Temperature Probability Data for North Carolina AG-403S ($3.00)
  • Growing Degree Days in North Carolina AG-236 ($3.00)

Table 1. Average length of growing season for selected North Carolina stations (1951-1980)

Table 1. Average length of growing season for selected North Carolina locations listed by station name. Data are for the period 1951 - 1980.
Station Name County Average Date Standard Deviation (days)
Albemarle 4 N Stanly 200 13
Andrews 2 E Cherokee 159 17
Asheboro 2 W Randolph 209 18
Asheville Buncombe 197 13
Banner Elk Avery 143 18
Bent Creek Buncombe 157 14
Black Mountain Buncombe 173 17
Blowing Rock Watauga 162 15
Brevard Transylvania 158 13
Burlington Alamance 214 17
Canton 1 SW Haywood 159 14
Celo 2 S Yancey 132 23
Chapel Hill 2 W Orange 190 14
Charlotte WSO AP Mecklenburg 213 27
Clinton Sampson 208 27
Concord Cabarrus 214 18
Coweeta Exp Station Macon 154 14
Cullowhee Jackson 161 14
Durham Durham 194 14
Edenton Chowan 233 17
Elizabeth City FAA AP Pasquotank 222 17
Enka Buncombe 182 18
Fayetteville Cumberland 213 17
Franklin 1 SSW Macon 161 14
Gastonia Gaston 208 22
Goldsboro 1 SSW Wayne 216 16
Greensboro Pump Station Guilford 205 15
Greensboro WSO AP Guilford 199 10
Greenville Pitt 212 16
Hamlet Richmond 199 14
Hatteras Dare 282 28
Henderson 2 NNW Vance 185 17
Hendersonville 1 NE Henderson 169 15
Hickory Burke 206 16
Highlands 2 S Macon 180 19
High Point Guilford 210 17
Hot Springs 2 Madison 183 15
Jackson Northampton 198 12
Kinston 5 E Lenoir 214 21
Laurinburg Scotland 217 17
Lenoir Caldwell 188 15
Lexington Davidson 214 19
Lumberton 6 NW Robeson 207 21
Marion McDowell 205 14
Marshall Madison 168 16
Maysville 6 W Jones 186 17
Monroe 4 SE Union 196 16
Morehead City 2 WNW Carteret 245 24
Morganton Burke 180 17
Mount Airy Surry 176 11
Nashville Nash 210 17
New Bern FAA AP Craven 232 18
New Holland Hyde 226 18
Oxford 2 SW Granville 206 17
Pisgah Forest 1 N Transvylvania 161 14
Plymouth 5 E Washington 195 15
Raleigh-Durham WSO AP Wake 199 17
Raleigh 4 SW Wake 213 20
Raleigh NCSU Wake 220 19
Reidsville 2 NW Rockingham 203 15
Rocky Mount 8 ESE Edgecombe 203 19
Rowan Research Station Rowan 185 13
Salisbury Rowan 201 16
Sanford 8 NE Lee 186 16
Shelby 2 NNE Cleveland 196 14
Siler City 2 NW Chatham 172 17
Smithfield Johnston 201 15
Southport 5 N Brunswick 238 24
Statesville 2 NNE Iredell 179 22
Tarboro 1 S Edgecombe 206 19
Transou Ashe 139 16
Tryon Polk 208 19
Wadesboro Anson 221 18
Waterville 2 Haywood 199 21
Waynesville 1 E Haywood 155 15
Whiteville 7 NW Columbus 212 21
Willard 4 SW Pender 212 20
Williamston 1 ENE Martin 219 19
Wilmington 7 N New Hanover 210 20
Wilmington WSO AP New Hanover 242 16
Wilson 3 SW Wilson 210 15

Table 1. Average length of growing season for selected North Carolina counties (1951-1980)

Table 2. Average length of growing season for selected North Carolina locations listed by county. Data are for the period 1951 - 1980.
County Station Name Average Date Standard Deviation (days)
Alamance Burlington 214 17
Anson Wadesboro 221 18
Ashe Transou 139 16
Avery Banner Elk 143 18
Brunswick Southport 5 N 238 24
Buncombe Asheville 197 13
. Black Mountain 173 17
. Bent Creek 157 14
. Enka 182 18
Burke Morganton 180 17
. Hickory 206 16
Cabarrus Concord 214 18
Caldwell Lenoir 188 15
Carteret Morehead City 2 WNW 245 24
Chatham Siler City 2 NW 172 17
Cherokee Andrews 2 E 159 17
Chowan Edenton 233 17
Cleveland Shelby 2 NNE 196 14
Columbus Whiteville 7 NW 212 21
Craven New Bern FAA AP 232 18
Cumberland Fayetteville 213 17
Dare Hatteras 282 28
Davidson Lexington 214 19
Durham Durham 194 14
Edgecombe Rocky Mount 8 ESE 203 19
. Tarboro 1 S 206 19
Gaston Gastonia 208 22
Granville Oxford 2 SW 206 17
Guilford High Point 210 17
. Greensboro Pump Station 205 15
. Greensboro WSO AP 199 10
Haywood Canton 1 SW 159 14
. Waynesville 1 E 155 15
. Waterville 2 199 21
Henderson Hendersonville 1 NE 169 15
Hyde New Holland 226 18
Iredell Statesville 2 NNE 179 22
Jackson Cullowhee 161 14
Johnston Smithfield 201 15
Jones Maysville 6 W 186 17
Lee Sanford 8 NE 186 16
Lenoir Kinston 5 E 214 21
Macon Coweeta Exp Station 154 14
. Highlands 2 S 180 19
. Franklin 1 SSW 161 14
Madison Marshall 168 16
. Hot Springs 2 183 15
Martin Williamston 1 ENE 219 19
McDowell Marion 205 14
Mecklenburg Charlotte WSO AP 213 27
Nash Nashville 210 17
New Hanover Wilmington WSO AP 242 16
. Wilmington 7 N 210 20
Northampton Jackson 198 12
Orange Chapel Hill 2 W 190 14
Pasquotank Elizabeth City FAA AP 222 17
Pender Willard 4 SW 212 20
Pitt Greenville 212 16
Polk Tryon 208 19
Randolph Asheboro 2 W 209 18
Richmond Hamlet 199 14
Robeson Lumberton 6 NW 207 21
Rockingham Reidsville 2 NW 203 15
Rowan Salisbury 201 16
. Rowan Research Station 185 13
Sampson Clinton 208 27
Scotland Laurinburg 217 17
Stanly Albemarle 4 N 200 13
Surry Mount Airy 176 11
Transvylvania Pisgah Forest 1 N 161 14
. Brevard 158 13
Union Monroe 4 SE 196 16
Vance Henderson 2 NNW 185 17
Wake Raleigh NCSU 220 19
. Raleigh 4 SW 213 20
. Raleigh-Durham WSO AP 199 17
Washington Plymouth 5 E 195 15
Watauga Blowing Rock 162 15
Wayne Goldsboro 1 SSW 216 16
Wilson Wilson 3 SW 210 15
Yancey Celo 2 S 132 23

Author:

Horticultural Science

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Last modified: Jan. 23, 2015, 2:51 p.m.