#------------------------------------------------- WARNING -------------------------------------------- # # The data you have obtained from this automated Natural Resources Conservation Service # database are subject to revision regardless of indicated Quality Assurance level. # Data are released on condition that neither the NRCS nor the United States Government # may be held liable for any damages resulting from its use. # # SNOTEL air temperature data contains a known bias. This bias is rooted in the sensor # conversion equation and varies through the output range. Solutions are in development. # For more information go to Air Temperature Bias Correction. # # Help and Tutorials: https://www.nrcs.usda.gov/sites/default/files/2023-03/Report%20Generator%20Help%20Guide.pdf # Air Temperature Bias Correction: https://www.nrcs.usda.gov/wps/portal/wcc/home/snowClimateMonitoring/temperature/temperatureBiasCorrection/ # # Support Contact: usdafpacbc@servicenowservices.com # #------------------------------------------------------------------------------------------------------ # # Reporting Frequency: Daily # Date Range: 1980-10-01 to 1981-09-30 # Report Instantaneous Data As: Start of Day # # Data for the following site(s) are contained in this file: # # SNOTEL 603: Lower Twin, MT # # Data items provided in this file: # # Element Name Value Type Function Type Function Duration Base Data Measurement Units Sensor Depth Element Code Description # Precipitation Accumulation Average (1981-2010) None Instantaneous - Start of Day N/A Inches N/A PREC Water year accumulated precipitation # # Quality Control flags included: # # Flag Name Description # V Valid Validated Data # N No Profile No profile for automated validation # E Edit Edit, minor adjustment for sensor noise # B Back Estimate Regression-based estimate for homogenizing collocated Snow Course and Snow Pillow data sets # K Estimate Estimate # X External Estimate External estimate # S Suspect Suspect data # # Quality Assurance flags included: # # Flag Name Description # U Unknown Unknown # R Raw No Human Review # P Provisional Preliminary Human Review # A Approved Processing and Final Review Completed # #------------------------------------------------------------------------------------------------------ # # Lower Twin (603) # Montana SNOTEL Site - 7900 ft # Reporting Frequency: Daily; Date Range: 1980-10-01 to 1981-09-30 # # As of: May 2, 2024, 2:01:54 PM GMT-08:00 # Day,Oct,Nov,Dec,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep ,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values,Average Precipitation Accumulation (1981-2010) (in) Start of Month Values 01,0.0,3.2,6.7,10.0,13.1,15.6,19.4,24.2,29.4,33.7,36.0,38.1 02,0.1,3.3,6.8,10.2,13.2,15.7,19.6,24.3,29.6,33.8,36.0,38.2 03,0.2,3.4,6.9,10.3,13.2,15.7,19.7,24.4,29.7,33.9,36.1,38.2 04,0.3,3.4,7.1,10.4,13.3,15.9,19.9,24.6,29.9,34.0,36.1,38.3 05,0.4,3.6,7.1,10.5,13.3,16.0,20.1,24.6,30.1,34.1,36.2,38.3 06,0.5,3.7,7.2,10.6,13.4,16.1,20.2,24.7,30.4,34.2,36.2,38.4 07,0.6,3.8,7.3,10.6,13.4,16.1,20.3,25.0,30.6,34.2,36.3,38.5 08,0.7,4.0,7.5,10.7,13.5,16.2,20.4,25.1,30.9,34.3,36.4,38.6 09,0.8,4.1,7.6,10.9,13.6,16.4,20.5,25.3,31.1,34.3,36.5,38.7 10,0.9,4.2,7.6,11.0,13.7,16.5,20.7,25.5,31.2,34.5,36.5,38.8 11,1.0,4.3,7.7,11.1,13.7,16.6,20.9,25.8,31.5,34.6,36.5,38.9 12,1.2,4.5,7.8,11.2,13.8,16.8,21.0,26.0,31.7,34.6,36.6,38.9 13,1.3,4.6,7.9,11.3,13.9,16.9,21.2,26.2,32.0,34.7,36.6,39.0 14,1.4,4.8,8.0,11.4,14.0,17.1,21.3,26.3,32.1,34.8,36.7,39.1 15,1.5,4.9,8.1,11.5,14.1,17.2,21.5,26.5,32.2,34.8,36.8,39.1 16,1.6,5.0,8.2,11.6,14.2,17.3,21.6,26.7,32.5,34.9,36.8,39.2 17,1.7,5.0,8.3,11.7,14.4,17.4,21.7,26.9,32.7,35.0,36.9,39.2 18,1.8,5.2,8.4,11.8,14.5,17.6,21.8,27.0,32.8,35.1,37.0,39.3 19,1.9,5.2,8.5,11.8,14.7,17.7,22.0,27.3,32.9,35.2,37.1,39.4 20,2.0,5.4,8.6,11.9,14.8,17.8,22.2,27.3,32.9,35.2,37.1,39.5 21,2.1,5.5,8.7,12.0,14.8,17.8,22.4,27.5,33.0,35.3,37.2,39.6 22,2.2,5.6,8.8,12.1,14.9,18.0,22.5,27.6,33.1,35.3,37.4,39.6 23,2.3,5.7,8.9,12.2,15.1,18.1,22.7,27.9,33.2,35.4,37.4,39.7 24,2.4,5.8,9.0,12.3,15.2,18.2,22.9,28.0,33.2,35.4,37.5,39.7 25,2.5,5.9,9.1,12.4,15.2,18.3,23.1,28.2,33.3,35.5,37.6,39.8 26,2.6,6.1,9.3,12.5,15.3,18.4,23.4,28.3,33.4,35.6,37.7,39.8 27,2.7,6.2,9.4,12.6,15.4,18.6,23.5,28.5,33.4,35.7,37.8,39.9 28,2.8,6.3,9.5,12.7,15.5,18.8,23.7,28.7,33.5,35.8,37.8,40.0 29,2.9,6.4,9.7,12.8,,18.9,23.9,28.9,33.5,35.8,37.9,40.0 30,3.0,6.5,9.8,12.8,,19.1,24.0,29.0,33.6,35.9,37.9,40.2 31,3.1,,9.9,12.9,,19.3,,29.2,,35.9,38.0,