Cumulative Growing Degree Days, Base 43/86

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Click on the station names below for historical charts. Last updated on June 27, 2024.

Station PNG/GIF Region 06/26/24 06/26/23 Normal '19-'23 Source
LEGW Tri-Cities 1900.7 1971.2 1968.5 Agrimet
HRMO Hermiston 1879.8 1958.7 1910.9 Agrimet
MATT Mattawa 1844.4 1931.0 1899.3 AgWeatherNet
HRHW Harrah 1749.8 1817.1 1872.4 Agrimet
BF Brewster.N 1515.7 1614.4 1572.5 AgWeatherNet
MASW Chelan 1355.1 1468.9 1444.9 Agrimet
PARO Parkdale 1309.2 1294.9 1315.8 Agrimet
STEM Stemilt / Wenatchee Hts 1149.5 1247.0 1267.6 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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