Cumulative Growing Degree Days, Base 43/86

Historical charts available at cherries.agrimgt.com/degreedays. Last updated on June 25, 2025.

Station Region 06/24/25 06/24/24 Normal '20-'24 Source
LEGW Tri-Cities 1934.8 1847.9 1916.4 Agrimet
HRMO Hermiston 1924.0 1823.9 1864.5 Agrimet
MATT Mattawa 1914.5 1788.7 1829.7 AgWeatherNet
HRHW Harrah 1802.8 1697.6 1812.5 Agrimet
BF Brewster.N 1600.9 1464.6 1495.5 AgWeatherNet
MASW Chelan 1515.3 1310.3 1351.8 Agrimet
PARO Parkdale 1381.7 1270.8 1269.2 Agrimet
STEM Stemilt / Wenatchee Hts 1255.7 1111.7 1161.5 AgWeatherNet
Flipbook PNW 0.0 0.0 0.0 Today's Flipbook
Chelan-Harrah Chelan-Harrah Spread 0.0 0.0 0.0 Spread Analysis 2 (pdf)
PNW Comparison PNW 0.0 0.0 0.0 Spread Analysis 1 (pdf)

Disclaimer: The purpose of these charts is to look at relative trends in terms of cumulative Growing Degree Days (GDDs) in Washington and Oregon, using a lower threshold of 43 degrees farenheit and an upper threshold of 86 degrees farenheit. While GDDs can be helpful in understanding the timing of natural (phenological) events for various crops or insects, these charts do not try to model those relationships. To better analyse or phenologically model a particular crop or insect, a different degree base may be appropriate.

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