Weather and agronomic data for locations in the OSU Statewide Cereal Variety Testing Program

   

Site

 Elevation (ft)

Year mean temperature (F)

Extreme temperatures

 Average annual precip. (in) Average annual evap. Days min. 32F or less

GDD@50F 

Max

Min

Mean

Max

Min

Corvallis 230 62 42 52 108 -7 42.7 38.8 55 2052
Forest Grove (NV) 750 64 42 53 108 -4 43.9 42.5* 60 2255
Heppner (Morrow) 1955 63 39 51 107 -15 14.0 - 110 2294
Hermiston 450 65 40 52 113 -17 9.0 - 107 2824
Klamath Falls 4100 61 35 48 104 -17 13.5 51.8 164 1973
LaGrande/Union 2770 60 36 48 108 -24 13.8 34.7 140 1830
Madras 2230 64 34 49 106 -31 10.5 51.7 158 1917
Medford 1310 67 41 54 114 -6 18.9 42.1 86 2865
Moro 1870 63 38 48 108 -16 11.2 - 125 1988
Ontario 2230 63 38 50 108 -26 10.2 53.9 142 2868
Pendleton 1490 63 37 50 115 -26 16.5 55.7* 126 2278

*evap. data for nearest station, not on-sitedata

  Production Irrigation Typical Typical Typical
  type level planting heading harvest
      date date date
           
Corvallis dryland   E-M Oct E-M May L July/E Aug
Forest Grove (NV) dryland   E-M Oct E-M May L July/E Aug
Heppner dryland   E Sept L May/E June M-L July
Hermiston irrigated full season E-M Oct E-M May M-L July
Klamath Falls irrigated full season E Oct L May/E June E Aug
LaGrande/Union irrigated supplamental E-M Oct L May/E June L July/E Aug
Madras irrigated full season E-M Oct L May/E June L July/E Aug
Medford irrigated   E-M Oct E May M July
Moro dryland   E Sept L May/E June M-L July
Ontario irrigated full season E-M Oct E-M May L July
Pendleton dryland   M-L Sept L May/E June M-L July