Weather Models and Degree Days
Access weather station data for your location and use the pest weather models to make pest management decisions and time pest management activities.
Pest and Plant Weather Models
Other Models
Degree-Day Calculator
Specify the thresholds and method of calculation for any model. Use weather data from California Irrigation Management Information Systems (CIMIS) or UC IPM's PestCast stations.
Start Degree-Day Calculator
California Weather Data
Current daily and hourly data from stations throughout California, plus long-term data for climate stations.
View California Weather DataResources
- About UC IPM's California Weather Database
- Western Regional Climate Center
- California Irrigation Management Information System (CIMIS)
- Video presentation using degree-days to time insecticide applications
- About degree-days
- Reference degree-day tables
- Chilling accumulations (November through March)
- Model descriptions
- More interactive tools and calculators
