Historic Data

Summary Reports

• Past Update Reports  (Daily summaries created using unedited SNOTEL data)
• Past Drought Monitor Update Reports
• Annual Data Summaries

Daily SNOTEL Data

• Water Year Table  (All sites, one water year, standard sensors)
• Tab-Delimited Format  (Individual site, one water year, standard sensors)
• Precipitation Data Table  (Individual site, period of record)
• Snow Water Data Table  (Individual site, period of record)
• Air Temperature Data Table  (Individual site, period of record)

Monthly Data

• 1st of Month Data File - All Sites  (Includes snow courses & SNOTEL sites, snow water & snow depth data)
• 1st of Month Data File - Individual Site  (Includes snow courses & SNOTEL sites, snow water & snow depth data)
• Snowpack Reports  (Includes snow courses & SNOTEL sites, format types: BASN, BASS, LOST)
• Precipitation Reports  (Includes NWS valley stations & SNOTEL sites, format types: BAPR, BSPR)
• Historical Montana Snow and Water Information (NRIS web site)