Daily and Interactive Degree-Day Maps of Idaho

Updated daily

These maps are calculated using the GIS GRASS 5.0, and are based on 1) near-real time temperature data from numerous AgriMet , HydroMet, National Weather Service , and RAWS weather stations, 2) historical average temperature data from numerous 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.

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Degree-Day Maps created daily using a 41 F. lower threshold:
Jan 1 - yesterday	Finished Map (click for larger version)
Current year GRASSLinks interactive GIS interface: (select region, size and click GO) Region Whole State SW ID SE ID N ID Mapsize 1600 1300 1000 800 600 400 250 150 pixels
Normals (Historical avgs) Region Whole State SW ID SE ID N ID Mapsize 1600 1300 1000 800 600 400 250 150 pixels
Deviations from Normals Region Whole State SW ID SE ID N ID Mapsize 1600 1300 1000 800 600 400 250 150 pixels

Degree-Day maps created daily using a 50 F. lower threshold:
Jan 1 - yesterday	Finished Map (click for larger version)
Current year GRASSLinks interactive GIS interface: (select size and click GO) Region Whole State SW ID SE ID N ID Mapsize 1600 1300 1000 800 600 400 250 150 pixels
Normals (Historical avgs) Region Whole State SW ID SE ID N ID Mapsize 1600 1300 1000 800 600 400 250 150 pixels
Deviations from Normals Region Whole State SW ID SE ID N ID Mapsize 1600 1300 1000 800 600 400 250 150 pixels

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