#------------------------------------------------- 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: 1990-10-01 to 1991-09-30 # 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 (1991-2020) 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: 1990-10-01 to 1991-09-30 # # As of: May 11, 2024, 1:29:40 AM GMT-08:00 # Day,Oct,Nov,Dec,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep ,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values,Average Precipitation Accumulation (1991-2020) (in) Start of Month Values 01,0.0,3.4,6.7,10.3,13.4,16.2,20.0,24.9,30.0,34.6,36.4,38.1 02,0.1,3.5,6.8,10.5,13.5,16.3,20.1,25.0,30.2,34.6,36.4,38.1 03,0.1,3.6,7.0,10.6,13.6,16.4,20.3,25.1,30.4,34.7,36.5,38.2 04,0.4,3.7,7.1,10.6,13.7,16.5,20.4,25.3,30.5,34.8,36.5,38.3 05,0.5,3.8,7.2,10.7,13.8,16.6,20.6,25.3,30.7,34.9,36.6,38.3 06,0.6,3.9,7.3,10.8,13.8,16.7,20.8,25.5,30.9,35.0,36.6,38.4 07,0.7,4.0,7.4,10.9,13.9,16.8,21.0,25.6,31.1,35.0,36.7,38.5 08,0.8,4.1,7.5,11.0,14.0,16.9,21.1,25.8,31.3,35.1,36.7,38.6 09,0.9,4.2,7.6,11.1,14.1,17.1,21.3,26.0,31.6,35.1,36.8,38.7 10,1.0,4.3,7.7,11.2,14.2,17.2,21.5,26.2,31.7,35.2,36.8,38.7 11,1.1,4.4,7.8,11.4,14.3,17.3,21.6,26.4,32.0,35.3,36.9,38.8 12,1.3,4.6,7.9,11.5,14.4,17.5,21.8,26.6,32.2,35.3,36.9,38.8 13,1.4,4.7,8.0,11.6,14.4,17.6,21.9,26.7,32.4,35.4,36.9,38.9 14,1.5,4.8,8.1,11.7,14.5,17.7,22.1,26.8,32.6,35.5,37.0,38.9 15,1.6,5.0,8.2,11.8,14.6,17.9,22.3,26.9,32.7,35.5,37.0,39.0 16,1.7,5.0,8.3,11.9,14.7,18.0,22.5,27.1,32.9,35.6,37.1,39.1 17,1.9,5.1,8.4,12.0,14.9,18.1,22.7,27.3,33.2,35.7,37.1,39.2 18,2.0,5.2,8.5,12.0,15.0,18.2,22.8,27.5,33.3,35.7,37.2,39.3 19,2.0,5.3,8.7,12.2,15.1,18.3,23.0,27.7,33.5,35.7,37.2,39.4 20,2.2,5.4,8.8,12.3,15.2,18.5,23.2,27.8,33.6,35.8,37.3,39.4 21,2.2,5.5,8.9,12.4,15.3,18.6,23.4,28.0,33.7,35.8,37.3,39.5 22,2.3,5.6,8.9,12.5,15.4,18.6,23.5,28.1,33.8,35.9,37.4,39.6 23,2.4,5.7,9.0,12.6,15.5,18.8,23.6,28.4,33.9,35.9,37.5,39.7 24,2.5,5.8,9.2,12.7,15.6,18.8,23.8,28.6,33.9,36.0,37.6,39.7 25,2.6,5.9,9.3,12.8,15.7,18.9,24.0,28.8,34.0,36.0,37.7,39.8 26,2.7,6.1,9.4,12.8,15.9,19.1,24.2,28.9,34.1,36.1,37.7,39.9 27,2.8,6.2,9.5,12.9,16.0,19.2,24.3,29.1,34.2,36.2,37.8,39.9 28,2.9,6.3,9.7,13.0,16.1,19.3,24.4,29.3,34.2,36.2,37.8,40.0 29,3.0,6.4,9.8,13.1,,19.5,24.5,29.5,34.3,36.2,37.9,40.1 30,3.1,6.5,10.0,13.2,,19.7,24.7,29.7,34.4,36.3,37.9,40.3 31,3.3,,10.2,13.3,,19.9,,29.8,,36.3,38.0,