Daily Degree-Day Maps of Oregon

See also the new page for Hermiston - Downy Brome and Ontario - Lygus Bug

and the new page for Oregon with interactive features

Updated daily

These maps are calculated using the GIS GRASS 4.2.1, and are based on 1) near-real time temperature data from up to 25 AgriMet , 18 HydroMet, 38 National Weather Service , and ca. 80 RAWS weather stations, 2) historical average temperature data from over 200 stations, 3) PRISM monthly max and min temperature maps, and 4) inverse-distance squared interpolations of differences between PRISM map-based and real-time degree-day calculations.  See More info. on methodology for creating DD maps. Also try out our new Degree-day Mapping Calculator for more control over calculation and mapping options.

(NOTE: you may need to use your browser's RELOAD or REFRESH button for latest images)

Series created daily using a 50 degrees F. lower threshold:
Jan 1 - yesterday Oregon N. Central Oregon Medford Region Hood River The Dalles
Current year Oregon current year to date N Central Oregon current year to date Medford current year to date Hood River current year to date The Dalles current year to date
Normals (Historical avgs) Oregon Normals to date N Central Oregon Normals to date Medford Normals to date Hood River Normals to date The Dalles Normals to date
Deviations from Normals Oregon deviations from normal to date N Central Oregon deviations from normal to date Medford deviations from normal to date Hood River deviations from normal to date The Dalles deviations from normal to date

Series created daily using a 41 degrees F. lower threshold:
Jan 1 - yesterday Oregon N. Central Oregon Medford Region Hood River The Dalles
Current year Oregon current year to date N Central Oregon current year to date Medford current year to date Hood River current year to date The Dalles current year to date
Normals (Historical avgs) Oregon Normals to date N Central Oregon Normals to date Medford Normals to date Hood River Normals to date The Dalles Normals to date
Deviations from Normals Oregon deviations from normal to date N Central Oregon deviations from normal to date Medford deviations from normal to date Hood River deviations from normal to date The Dalles deviations from normal to date

Other information:

Brief summary of methods used to create degree-day maps

Backup of all previously created maps

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

This project funded in part by grants from the USDA-Western Regional IPM program and the USDA areawide codling moth program.

Integrated Plant Protection Center at Oregon State University

This page on-line since May 4, 1998
This page updated Apr 14, 2005
Contact Len Coop at coopl@bcc.orst.edu if you have any questions about this information.