Contrary to popular opinion there is, in fact, weather in southern California and it's usually sunny and mild. But seriously, the climate in Pasadena is considered sub-tropical and semi-arid. The average May temperature is a pleasant 75 degrees high and 51 degrees low. A light jacket or sweater is suggested for evenings and the unpredictability of indoor air conditioning.

For more information:

• Daily forecasts
  From the Pathfinder web site, this page provides info on the Pasadena 91050 zip code. For more interesting forecasts, try the 99801 zip code.
• Interactive Weather
  From the National Weather Service, get up-to-the-minute, really detailed weather conditions.
• Pollen Count Information
  Got allergies? Check this page for the latest data.
• SeismoCam
  One of the premier highlights of any trip to southern California is an earthquake. Check out the SeismoCam (courtesy of our local NBC affiliate) for the latest rock and roll action. We can't promise this special treat during the mid-year meeting, but keep your fingers crossed! For a more legit page about earthquakes, try Cal Tech.
• Weather Channel
  For those who just can't get enough weather, the ultimate weather web site.