I'm heartened to see people utilizing Weather Underground as a source of real-time weather data. I've had good luck working with Weather Underground data for several years, and find its coverage and data availability rather astonishing: over 16,000 personal weather stations (mostly US), and links to 34,000 official weather stations around the world (26,000 US, 6,000 international). If anyone's interested in real-time data at the local level, this would be a prime source to check. However, I do want to mention some cautions in using WUnderground data. None of these are "showstoppers" but they will require work in data processing: 1. data are in standard METAR format 2. period of record may not go beyond the last 2-3 years. 3. occasional data gaps 4. (the biggie) no cloud cover data to estimate solar radiation (my solution has been to "borrow" cloud cover data from the nearest official weather station) As far as downloading the data, I've been using python scripts written by Ery Djunaedy of the IDL at Univ. of Idaho building on previously posted work at http://flowingdata.com/2007/07/09/grabbing-weather-underground-data-with-beautifulsoup/ . The scripts have worked like a charm, allowing me to download all available data for a site at one shot. Joe Joe Huang White Box Technologies, Inc. 346 Rheem Blvd., Suite 108D Moraga CA 94556 yjhuang@xxxxxxxxxxxxxxxxxxxxxxxx http://weather.whiteboxtechnologies.com for simulation-ready weather data (o) (925)388-0265 (c) (510)928-2683 "building energy simulations at your fingertips" On 8/7/2014 7:51 AM, Jamie Bull jamiebull1@xxxxxxxxx [EnergyPlus_Support] wrote:
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