You are here

Share page with AddThis

Growing Degree Days

Sign-up to receive email alerts when degree days hit a target threshold in your area.

View the latest growing degree information for your post code below or sign up for individual email alerts. Questions about how to use degree days on your operation? Learn more about how this tool can help you.

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 USA calculations is 10°C, because it is the temperature when active growth begins for most organisms. However, in the UK’s cooler environments many turf managers use 6°C, occasionally 0°C is used as the base temperature. For more information on which base temperature best suits your turf management plan, please contact your local Syngenta contact.

You currently have not logged in or registered for a Greencast account. Please click here to login or register by clicking here if you do not have an account yet.

Growing Degree Days for Hong Kong
Total GDD for the date range of 04/23/2022 - 05/23/2022 : 408
Date Temp: High / Low Daily GDD YTD GDD
23/05/2022 24.3 °C / 23.1 °C 13.7 1291
22/05/2022 24.4 °C / 23.6 °C 13.9 1277.3
21/05/2022 25.7 °C / 24 °C 14.7 1263.4
20/05/2022 24.2 °C / 22.6 °C 13.6 1248.7
19/05/2022 23.8 °C / 22.6 °C 13.1 1235.2
18/05/2022 23.1 °C / 21.3 °C 12.3 1222
17/05/2022 22.3 °C / 20.4 °C 11.4 1209.7
16/05/2022 20.9 °C / 18.4 °C 9.9 1198.4
15/05/2022 23.1 °C / 20.7 °C 11.8 1188.5
14/05/2022 24.7 °C / 23.2 °C 14.1 1176.7
13/05/2022 24.8 °C / 24.5 °C 14.7 1162.5
12/05/2022 24.7 °C / 24.2 °C 14.4 1147.9
11/05/2022 24.2 °C / 23.3 °C 13.9 1133.5
10/05/2022 23.5 °C / 22.6 °C 13 1119.6
09/05/2022 23.8 °C / 23.4 °C 13.6 1106.6
08/05/2022 24.5 °C / 24 °C 14.2 1093.1
07/05/2022 24.4 °C / 22 °C 12.8 1078.9
06/05/2022 23.1 °C / 20.8 °C 11.9 1066.1
05/05/2022 23.7 °C / 22.9 °C 13.2 1054.2
04/05/2022 23.6 °C / 21.8 °C 12.7 1040.9
03/05/2022 22.7 °C / 20.4 °C 11.6 1028.2
02/05/2022 20.9 °C / 17.4 °C 8.9 1016.7
01/05/2022 23.8 °C / 18 °C 12.2 1007.8
30/04/2022 26 °C / 23.4 °C 14.2 995.6
29/04/2022 26.5 °C / 23.1 °C 14 981.4
28/04/2022 26.2 °C / 23.5 °C 14.8 967.4
27/04/2022 26 °C / 22.7 °C 14.8 952.5
26/04/2022 25.3 °C / 23.3 °C 14.4 937.8
25/04/2022 24.9 °C / 23.1 °C 14.2 923.3
24/04/2022 24.6 °C / 22.8 °C 13.5 909.1
23/04/2022 23.3 °C / 22.4 °C 12.7 895.6