Integrated Plant Protection Center at Oregon State University


ONLINE DEGREE-DAY CALCULATOR

for pest management decision making

Degree-day Calculator
To calculate DDs: Select species OR enter thresholds, calculation method,
BIOFIX (starting date for degree-day accumulations), one location from Western
OR Central/Eastern Oregon (also 3 non-Oregon), NEW Dec. 22 1997: also select
"forecast" location (mostly 30 year average data) and click "Calc". Note: all
temperatures and degree-days are currently in degrees Fahrenheit only.
Species library:

       or      
Enter custom thresholds:
lower: °F
upper: °F

Calculation method:
 

Starting month and day (BIOFIX):
 
Select region: Western Oregon
(+ 2 Washington, 1 Montana)
 Eastern Oregon

Select current location:
Select forecast location:
(uses historical average
data unless specified)

Do the calculations:
 

[Intro] [Data Table] [Data Map] [DD Calc] [DD Models] [Links]

This project funded in part by a grant from the USDA-Western Regional IPM program.

This page on-line since May 16, 1997
Last updated Feb. 16, 1998
Contact Len Coop at coopl@bcc.orst.edu if you have any questions about this information.