DST Project Department of Entomology ANGRAU Agriculutral College Bapatla Andhra Pradesh Murthy's Weather Health Monitor
Web enabled weather based decision support system for forewarning of YSB & BPH
on rice in Andhra Pradesh

GDD Calculator

Growing Degree Days (GDD) is a simple model to relate the air temperature to growth, is also useful in development of crops and pests incidence. This is also useful in studying the suitabil ity of a crop variety to a new environment. It is calculated by deducting the base temperature from the mean daily temperature [(Tmax+Tmin)/2].

Base temperature is the temperature below which no physiological activity takes place. It is taken as default
•10°C from 2nd March to 31st October
•5°C from 1st November to 1st March.

Select station
Start Date
End Date
Enter GDD Base Temperatures Period I (2-Mar to 31-Oct): °C
Period II (1-Nov to 1-Mar): °C