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2021-2022 Bud Hardiness Data


NYS Agricultural Experiment Station - Geneva (Weekly samples)

Cold hardiness for 11 cultivars is reported as the LT10, LT50, and LT90 values. These values represent the temperature where 10%, 50%, and 90% of sampled buds were observed to be killed.  LT50 is equivalent to the average cold hardiness of the collection.  Cultivar values are shown in table format (below) or can be found in graph format by following the cultivar hyperlink.  Questions and comments on the data or cold hardiness, in general, can be directed to Dr. Jason Londo, jpl275@cornell.edu

 

ALERT: Cold hardiness values estimated for some cultivars (Cabernet Sauvignon, Gewurztraminer, Merlot) suggest the potential for some damage from the cold weather we received on 1/16. We use the NEWA weather station located at Bejo Seeds near Geneva, so estimates of cold may be different for your locations.  There is potential for more cold damage between Thursday 1/20 and Friday 1/21, depending on what the low temperature ends up being.  For most cultivars, the temperatures are only estimated to impact the LT10, which estimates the temperature that may damage 10% of buds.  The next update of data will be posted Friday (1/21) by noon and will represent the cold hardiness of buds as they are collected on Thursday (1/20), before the freeze.  Please reach out with questions or concerns.    

Cultivars: Cabernet Franc, Cabernet Sauvignon, Cayuga White, Chardonnay, Concord, Gewurztraminer, Lemberger, Marquette, Merlot, Riesling, Sauvignon blanc

 
 
Grapevine cold hardiness
  Fahrenheit Celsius
LT10°F LT50°F LT90°F LT10°C LT50°C LT90°C
Cabernet Franc
2021-11-02 12.4 10.4 9.3 -10.9 -12.0 -12.6
2021-11-08 8.6 7.5 5.7 -13.0 -13.6 -14.6
2021-11-15 7.2 4.5 1.7 -13.8 -15.3 -16.8
2021-11-22 3.2 1.6 -4.0 -16.0 -16.9 -20.0
2021-11-29 2.8 -1.3 -4.2 -16.2 -18.5 -20.1
2021-12-07 -2.8 -5.0 -6.7 -19.3 -20.5 -21.5
2021-12-13 -4.2 -6.5 -8.2 -20.1 -21.4 -22.3
2021-12-20 -3.4 -6.5 -8.8 -19.6 -21.4 -22.7
2021-12-28 -1.3 -5.1 -7.5 -18.5 -20.6 -21.9
2022-01-03 -1.7 -4.7 -7.5 -18.7 -20.4 -22.0
2022-01-10 -2.8 -7.9 -9.4 -19.4 -22.2 -23.0
Cabernet Sauvignon
2021-11-02 12.9 11.6 8.8 -10.6 -11.3 -12.9
2021-11-08 11.6 7.9 6.2 -11.3 -13.4 -14.3
2021-11-15 7.2 4.8 2.8 -13.8 -15.1 -16.2
2021-11-22 4.8 2.7 -0.6 -15.1 -16.3 -18.1
2021-11-29 0.1 -1.9 -5.3 -17.7 -18.9 -20.7
2021-12-07 0.9 -1.4 -3.8 -17.3 -18.6 -19.9
2021-12-13 -0.6 -4.8 -6.2 -18.1 -20.5 -21.2
2021-12-20 5.4 -3.2 -7.6 -14.8 -19.5 -22.0
2021-12-28 3.1 -3.7 -7.8 -16.1 -19.9 -22.1
2022-01-03 2.7 -3.5 -7.4 -16.3 -19.7 -21.9
2022-01-10 -0.4 -6.6 -11.0 -18.0 -21.4 -23.9
Cayuga White
2021-11-02 11.5 9.4 6.9 -11.4 -12.5 -13.9
2021-11-08 7.7 5.9 4.1 -13.5 -14.5 -15.5
2021-11-15 4.6 -0.3 -3.4 -15.2 -17.9 -19.7
2021-11-22 0.8 -1.1 -3.2 -17.3 -18.4 -19.5
2021-11-29 -3.0 -5.0 -7.1 -19.5 -20.5 -21.7
2021-12-07 -0.1 -5.9 -7.4 -17.8 -21.1 -21.9
2021-12-13 -2.4 -6.2 -11.2 -19.1 -21.2 -24.0
2021-12-20 -2.4 -8.1 -12.2 -19.1 -22.2 -24.6
2021-12-28 -3.8 -8.4 -11.4 -19.9 -22.4 -24.1
2022-01-03 -4.4 -8.3 -10.9 -20.2 -22.4 -23.8
2022-01-10 1.0 -8.8 -13.3 -17.2 -22.7 -25.1
Chardonnay
2021-11-02 11.9 10.2 8.0 -11.1 -12.1 -13.3
2021-11-08 7.0 4.8 1.3 -13.9 -15.1 -17.1
2021-11-15 5.4 1.7 -1.3 -14.8 -16.9 -18.5
2021-11-22 3.0 -1.3 -2.5 -16.1 -18.5 -19.2
2021-11-29 -3.5 -5.4 -8.1 -19.7 -20.8 -22.3
2021-12-07 -2.6 -5.4 -8.0 -19.2 -20.8 -22.2
2021-12-13 -5.8 -8.3 -10.0 -21.0 -22.4 -23.3
2021-12-20 -6.1 -7.3 -8.9 -21.1 -21.8 -22.7
2021-12-28 -6.4 -8.4 -9.9 -21.3 -22.4 -23.2
2022-01-03 -3.2 -6.4 -8.1 -19.6 -21.4 -22.3
2022-01-10 0.1 -7.9 -13.2 -17.7 -22.2 -25.1
Concord
2021-11-02 11.8 5.0 2.2 -11.2 -15.0 -16.6
2021-11-08 8.7 3.4 0.8 -12.9 -15.9 -17.3
2021-11-15 5.3 -0.1 -3.7 -14.8 -17.8 -19.8
2021-11-22 2.0 -1.4 -3.8 -16.6 -18.6 -19.9
2021-11-29 3.3 -3.9 -6.3 -16.0 -20.0 -21.3
2021-12-07 -3.2 -6.4 -8.9 -19.5 -21.3 -22.7
2021-12-13 -4.2 -7.2 -9.9 -20.1 -21.8 -23.3
2021-12-20 -7.5 -10.0 -13.9 -21.9 -23.3 -25.5
2021-12-28 -3.9 -10.0 -12.5 -19.9 -23.3 -24.7
2022-01-03 -5.2 -10.6 -15.1 -20.7 -23.6 -26.1
2022-01-10 -4.5 -10.2 -16.8 -20.3 -23.4 -27.1
Gewurztraminer
2021-11-02 15.2 12.7 10.7 -9.3 -10.7 -11.9
2021-11-08 10.3 8.3 6.5 -12.1 -13.2 -14.2
2021-11-15 8.4 5.5 -0.2 -13.1 -14.7 -17.9
2021-11-22 6.7 3.7 0.5 -14.1 -15.7 -17.5
2021-11-29 6.8 -0.8 -2.5 -14.0 -18.2 -19.2
2021-12-07 -2.0 -3.5 -5.3 -18.9 -19.7 -20.7
2021-12-13 -1.8 -5.3 -6.2 -18.8 -20.7 -21.2
2021-12-20 3.9 -5.7 -7.8 -15.6 -20.9 -22.1
2021-12-28 -0.3 -4.9 -7.0 -18.0 -20.5 -21.7
2022-01-03 -1.6 -3.4 -7.4 -18.7 -19.7 -21.9
2022-01-10 6.9 -2.7 -6.7 -13.9 -19.3 -21.5
Lemberger
2021-11-02 11.4 9.6 7.4 -11.4 -12.5 -13.7
2021-11-08 8.1 5.3 2.7 -13.3 -14.8 -16.3
2021-11-15 6.5 2.5 -0.7 -14.2 -16.4 -18.2
2021-11-22 4.1 0.8 -2.1 -15.5 -17.3 -19.0
2021-11-29 -2.3 -4.3 -5.0 -19.1 -20.2 -20.6
2021-12-07 -3.3 -5.4 -6.6 -19.6 -20.8 -21.4
2021-12-13 -3.1 -6.4 -9.0 -19.5 -21.3 -22.8
2021-12-20 -5.2 -6.5 -11.1 -20.6 -21.4 -23.9
2021-12-28 -5.2 -6.4 -8.4 -20.6 -21.4 -22.5
2022-01-03 -2.1 -5.5 -9.1 -19.0 -20.8 -22.8
2022-01-10 -3.7 -9.7 -11.9 -19.8 -23.2 -24.4
Marquette
2021-11-02 13.6 10.6 6.8 -10.2 -11.9 -14.0
2021-11-08 6.8 5.0 2.1 -14.0 -15.0 -16.6
2021-11-15 6.9 2.7 0.3 -13.9 -16.3 -17.6
2021-11-22 2.8 -1.7 -6.4 -16.2 -18.7 -21.3
2021-11-29 -2.1 -6.8 -9.2 -19.0 -21.5 -22.9
2021-12-07 -0.6 -5.7 -9.9 -18.1 -21.0 -23.3
2021-12-13 -6.6 -10.5 -13.9 -21.4 -23.6 -25.5
2021-12-20 -3.8 -8.4 -10.6 -19.9 -22.4 -23.6
2021-12-28 -2.1 -9.4 -13.3 -18.9 -23.0 -25.2
2022-01-03 -6.2 -11.3 -13.8 -21.2 -24.1 -25.5
2022-01-10 -11.0 -12.7 -15.0 -23.9 -24.9 -26.1
Merlot
2021-11-02 12.9 11.0 9.3 -10.6 -11.7 -12.6
2021-11-08 8.8 5.8 4.1 -12.9 -14.5 -15.5
2021-11-15 7.1 3.6 0.7 -13.8 -15.8 -17.4
2021-11-22 3.9 0.7 -1.5 -15.6 -17.4 -18.6
2021-11-29 0.6 -1.6 -4.7 -17.4 -18.6 -20.4
2021-12-07 8.0 1.3 -4.4 -13.3 -17.0 -20.2
2021-12-13 1.8 -2.8 -5.5 -16.8 -19.4 -20.8
2021-12-20 1.5 -2.9 -6.4 -16.9 -19.4 -21.3
2021-12-28 5.1 -1.7 -7.7 -14.9 -18.7 -22.1
2022-01-03 3.1 -1.1 -7.2 -16.1 -18.4 -21.8
2022-01-10 1.4 -7.8 -14.2 -17.0 -22.1 -25.7
Riesling
2021-11-02 11.0 9.4 7.6 -11.7 -12.6 -13.6
2021-11-08 7.6 5.6 2.2 -13.6 -14.7 -16.6
2021-11-15 5.7 2.6 0.8 -14.6 -16.4 -17.3
2021-11-22 -1.2 -3.2 -5.2 -18.4 -19.5 -20.7
2021-11-29 1.4 -3.6 -7.2 -17.0 -19.8 -21.8
2021-12-07 -2.0 -5.6 -8.2 -18.9 -20.9 -22.3
2021-12-13 -5.7 -8.3 -9.9 -20.9 -22.4 -23.3
2021-12-20 -5.7 -9.1 -11.6 -20.9 -22.8 -24.2
2021-12-28 -3.4 -9.7 -11.7 -19.7 -23.2 -24.3
2022-01-03 -2.4 -6.9 -10.6 -19.1 -21.6 -23.7
2022-01-10 -3.0 -9.5 -11.8 -19.5 -23.1 -24.3
Sauvignon blanc
2021-11-02 14.8 11.4 9.7 -9.5 -11.5 -12.4
2021-11-08 10.9 9.1 8.0 -11.7 -12.8 -13.3
2021-11-15 7.4 6.2 5.1 -13.7 -14.3 -14.9
2021-11-22 4.9 0.2 -1.3 -15.0 -17.7 -18.5
2021-11-29 0.4 -0.9 -4.0 -17.5 -18.2 -20.0
2021-12-07 0.6 -1.6 -4.9 -17.5 -18.6 -20.5
2021-12-13 1.2 -3.8 -6.5 -17.1 -19.9 -21.4
2021-12-20 -1.8 -3.9 -7.3 -18.8 -20.0 -21.8
2021-12-28 -3.6 -5.4 -7.0 -19.8 -20.8 -21.7
2022-01-03 -1.9 -5.1 -7.1 -18.9 -20.6 -21.7
2022-01-10 -5.4 -7.1 -9.0 -20.8 -21.7 -22.8
 

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