Online Phenology Models and Degree-day Calculator
     
Weather station map: pan, zoom and click on pin (red pin shows current location):
El Monte CA  station: KEMT METAR elev: 295 ft lat/long: 34.0831 -118.0331   
threecornered alfalfa hopper
 [legumes, grapes]

OSU OIPMC model analysis
eggs immature damage adult
 
  info Model category: 
  
Model:   params 

Start:   (starting date based on: calendar date - set on Jan 1)
       
 

End:     Note - start date was set to over-ride database default. Is that what you want? 

info  Output:  Condensed:  Show Daylength: 

              

 
Output preview: show future events:
       
      Weather station QA score 0.92; 0 days missing
Date Days from today DDs(F) Event
 May 16 16 days ago 1180 F1 late instar nymphs
 Jun 1 today 1430 First F1 adults
 Jul 9 38 days away 2180 F1 peak adults, also F2 young nymphs
 Jul 25 54 days away 2580 F2 late instar nymphs
 Aug 4 64 days away 2830 First F2 adults
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Oregon IPM Center at State University Integrated Pest Management PIPE Western
 Region Pest Management Center National Institute of Food and Agriculture
All data provided "as is" and users assume all risk in its use - see full disclaimer. All NWS derived data is not subject to copyright protection. This site hosted by the Integrated Plant Protection Center at Oregon State University with support from the USDA National Plant Diagnostic Network, The OSU Agricultural Experiment Station, various USDA CSREES/NIFA grants, USDA SARE, USDA RMA, and USDA IPM Centers - Western Region. Climate map data provided by OSU PRISM Group, real-time public weather data provided by U. Utah Mesowest and other networks including WSU AgWeatherNET, AGRIMET, CPS Adcon Networks, IFPNet Automata, California CIMIS, California PestCast, and others.
Previous versions online since May 16, 1997, new version 6.01, updated Jan 3, 2025
Contact Len Coop at coopl@science.oregonstate.edu if you have any questions about this program.