Growing Degree Days Calculator | Syngenta Turf & Landscape

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Growing Degree Days Calculator

View the latest growing degree information for your postcode.

Base temperatures used in calculating GDD vary depending on the type of plant or pest that is being monitored. This number represents the temperature at which you will typically begin to see plant or pest growth. The base temperature most often used in calculations 10°C, because it is the temperature when active growth begins for most organisms. . However, some plants or pests can thrive in cooler environments, and in that case, 0°C is best used in calculations. For more information on which base temperature best suits your turf management plan, please contact your local extension service or Syngenta territory manager.

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Growing Degree Days for Sydney NSW Australia
Date Temp: High / Low Daily GDD Cumulative GDD
28/10/2020 18.6 °C / 12.9 °C 5.6 238.9
27/10/2020 16.5 °C / 13.2 °C 4.6 233.3
26/10/2020 14.5 °C / 12.8 °C 3.5 228.6
25/10/2020 18.3 °C / 11.7 °C 3.1 225.1
24/10/2020 27 °C / 17.6 °C 11.4 222
23/10/2020 27.1 °C / 15.1 °C 10.2 210.6
22/10/2020 25.3 °C / 16 °C 9.9 200.4
21/10/2020 22.6 °C / 14.3 °C 8.2 190.4
20/10/2020 20.8 °C / 13.8 °C 6.6 182.2
19/10/2020 15.8 °C / 13.1 °C 4.4 175.6
18/10/2020 23.6 °C / 14.3 °C 9.4 171.2
17/10/2020 27.4 °C / 14.7 °C 9.6 161.8
16/10/2020 20.3 °C / 14.3 °C 7 152.2
15/10/2020 27.3 °C / 14.2 °C 9.8 145.2
14/10/2020 19.1 °C / 14.5 °C 6.6 135.5
13/10/2020 28.8 °C / 14.9 °C 11 128.9
12/10/2020 23 °C / 15.4 °C 8.1 117.9
11/10/2020 26.4 °C / 11.3 °C 9.1 109.8
10/10/2020 24.6 °C / 9.5 °C 7.3 100.7
09/10/2020 21.7 °C / 11.1 °C 6.6 93.4
08/10/2020 26.8 °C / 17 °C 10.9 86.8
07/10/2020 21.8 °C / 15.7 °C 8.4 75.9
06/10/2020 20.9 °C / 11.3 °C 5.1 67.5
05/10/2020 30.7 °C / 15 °C 13 62.4
04/10/2020 30.2 °C / 15.5 °C 11.6 49.3
03/10/2020 26.7 °C / 12.8 °C 9.1 37.7
02/10/2020 26.3 °C / 9.4 °C 8.1 28.6
01/10/2020 24.5 °C / 13.1 °C 8.4 20.5
30/09/2020 21.5 °C / 10.4 °C 5.3 12.2
29/09/2020 18.4 °C / 10.2 °C 3.4 6.8
28/09/2020 18.4 °C / 8.6 °C 3.4 3.4