The CAVE Weather Station Network includes six stations located in vineyards throughout the Grand Valley American Viticultural Area, plus data from an additional station at Colorado State University’s Orchard Mesa Research Center. These stations were originally established through a partnership between CAVE and CSU’s Specialty Crops Program, with USDA funding for a three-year Powdery Mildew Research Project (2002–2004). CAVE continues to maintain this network with technical guidance from Dr. Horst Caspari of Colorado State University. Weather data is available for public use. Please note: due to a limited number of simultaneous logins, we ask users to exit the system once they’ve completed their session. Since the weather data page is updated frequently, we recommend bookmarking this introductory page for easy access