#------------------------------------------------- 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: 2025-10-01 to 2026-09-30 # Report Instantaneous Data As: Start of Day # # Data for the following site(s) are contained in this file: # # SNOTEL 836: Twin Lakes, MT # # Data items provided in this file: # # Element Name Value Type Function Type Function Duration Base Data Measurement Units Sensor Depth Element Code Description # Snow Water Equivalent Value None Instantaneous - Start of Day N/A Inches N/A WTEQ Depth of water that would theoretically result if the entire snowpack were melted instantaneously # Snow Depth Value None Instantaneous - Start of Day N/A Inches N/A SNWD Total snow depth # Precipitation Accumulation Value None Instantaneous - Start of Day N/A Inches N/A PREC Water year accumulated precipitation # Snow Density Value None Instantaneous - Start of Day N/A Percent N/A SNDN The mass of snow per unit volume, expressed as a percent of water content # # 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 # K Estimate Estimate # C Correction A different equation has been applied to the original sensor voltage # B Back Estimate Regression-based estimate for homogenizing collocated Snow Course and Snow Pillow data sets # X External Estimate External estimate # S Suspect Suspect data # M Missing Value is missing # # 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 # #------------------------------------------------------------------------------------------------------ # # Twin Lakes (836) Montana SNOTEL Site - 6380 ft # Reporting Frequency: Daily; Date Range: 2025-10-01 to 2026-09-30 # # As of: May 20, 2026, 8:50:34 PM GMT-08:00 # Date,Snow Water Equivalent (in) Start of Day Values,Snow Depth (in) Start of Day Values,Precipitation Accumulation (in) Start of Day Values,Snow Density (pct) Start of Day Values 2025-10-01,0.0,0,0.00, 2025-10-02,0.0,0,0.20, 2025-10-03,0.0,0,0.40, 2025-10-04,0.0,0,1.00, 2025-10-05,0.0,0,1.20, 2025-10-06,0.0,0,1.30, 2025-10-07,0.0,0,1.40, 2025-10-08,0.0,0,1.40, 2025-10-09,0.0,0,1.40, 2025-10-10,0.0,0,1.40, 2025-10-11,0.0,0,1.40, 2025-10-12,0.2,1,1.50, 2025-10-13,0.7,7,2.40, 2025-10-14,0.8,6,2.60, 2025-10-15,0.8,4,2.80, 2025-10-16,0.6,3,3.00, 2025-10-17,0.5,2,3.00, 2025-10-18,0.4,2,3.10, 2025-10-19,0.2,0,3.30, 2025-10-20,0.8,5,3.80, 2025-10-21,1.0,5,4.30,20.0 2025-10-22,1.0,4,4.60,25.0 2025-10-23,1.0,2,4.60,50.0 2025-10-24,0.9,2,4.60, 2025-10-25,0.9,1,4.80, 2025-10-26,0.7,2,4.90, 2025-10-27,1.1,7,5.60,15.7 2025-10-28,1.7,14,5.80,12.1 2025-10-29,1.7,11,6.20,15.5 2025-10-30,1.8,10,6.20,18.0 2025-10-31,1.8,9,6.20,20.0 2025-11-01,1.7,7,6.50,24.3 2025-11-02,1.5,4,6.60,37.5 2025-11-03,1.4,5,6.60,28.0 2025-11-04,1.6,5,6.90,32.0 2025-11-05,1.3,4,7.30,32.5 2025-11-06,1.3,4,7.60,32.5 2025-11-07,1.3,4,7.80,32.5 2025-11-08,1.7,7,8.00,24.3 2025-11-09,1.6,6,8.00,26.7 2025-11-10,1.7,6,8.30,28.3 2025-11-11,1.8,5,8.40,36.0 2025-11-12,1.3,4,8.50,32.5 2025-11-13,1.2,3,8.50,40.0 2025-11-14,0.9,2,8.90, 2025-11-15,0.6,1,10.70, 2025-11-16,0.3,1,11.00, 2025-11-17,0.0,0,11.30, 2025-11-18,0.0,0,11.40, 2025-11-19,0.0,0,11.50, 2025-11-20,0.2,1,11.70, 2025-11-21,0.1,0,11.80, 2025-11-22,0.0,0,11.80, 2025-11-23,0.0,0,11.80, 2025-11-24,0.3,1,11.90, 2025-11-25,1.0,7,12.40,14.3 2025-11-26,1.0,7,12.40,14.3 2025-11-27,1.3,8,12.60,16.2 2025-11-28,1.4,7,12.80,20.0 2025-11-29,2.0,15,13.30,13.3 2025-11-30,2.0,13,13.30,15.4 2025-12-01,2.0,12,13.30,16.7 2025-12-02,2.1,12,13.50,17.5 2025-12-03,2.4,15,13.80,16.0 2025-12-04,2.4,14,13.80,17.1 2025-12-05,3.0,17,14.10,17.6 2025-12-06,4.0,22,14.50,18.2 2025-12-07,5.8,36,16.10,16.1 2025-12-08,6.6,38,17.00,17.4 2025-12-09,7.7,39,17.60,19.7 2025-12-10,8.3,38,20.20,21.8 2025-12-11,8.6,33,21.10,26.1 2025-12-12,8.5,28,21.50,30.4 2025-12-13,8.0,25,22.10,32.0 2025-12-14,7.8,24,22.30,32.5 2025-12-15,7.8,24,22.50,32.5 2025-12-16,8.0,24,22.80,33.3 2025-12-17,8.1,25,23.10,32.4 2025-12-18,8.1,24,24.10,33.8 2025-12-19,9.9,36,25.00,27.5 2025-12-20,11.8,46,26.60,25.7 2025-12-21,11.9,45,26.70,26.4 2025-12-22,12.4,46,27.30,27.0 2025-12-23,12.6,45,27.70,28.0 2025-12-24,13.0,45,28.10,28.9 2025-12-25,13.5,44,28.50,30.7 2025-12-26,13.4,42,28.80,31.9 2025-12-27,13.7,45,29.10,30.4 2025-12-28,14.7,58,30.10,25.3 2025-12-29,14.7,54,30.80,27.2 2025-12-30,14.7,51,30.90,28.8 2025-12-31,14.8,49,31.10,30.2 2026-01-01,14.8,48,31.20,30.8 2026-01-02,15.0,48,31.30,31.2 2026-01-03,15.5,48,31.60,32.3 2026-01-04,15.5,48,31.60,32.3 2026-01-05,16.0,53,32.10,30.2 2026-01-06,16.4,57,32.50,28.8 2026-01-07,17.4,63,33.50,27.6 2026-01-08,18.4,68,34.50,27.1 2026-01-09,19.2,76,35.20,25.3 2026-01-10,19.5,76,35.70,25.7 2026-01-11,19.5,72,35.90,27.1 2026-01-12,19.5,69,36.10,28.3 2026-01-13,19.6,66,36.20,29.7 2026-01-14,19.5,65,36.20,30.0 2026-01-15,19.6,64,36.20,30.6 2026-01-16,19.5,63,36.20,31.0 2026-01-17,19.4,62,36.20,31.3 2026-01-18,19.5,61,36.20,32.0 2026-01-19,19.5,61,36.20,32.0 2026-01-20,19.6,60,36.20,32.7 2026-01-21,19.6,59,36.20,33.2 2026-01-22,19.5,59,36.20,33.1 2026-01-23,19.5,59,36.20,33.1 2026-01-24,19.4,58,36.20,33.4 2026-01-25,19.4,58,36.20,33.4 2026-01-26,19.4,59,36.20,32.9 2026-01-27,19.4,58,36.20,33.4 2026-01-28,19.4,58,36.20,33.4 2026-01-29,20.2,58,36.20,34.8 2026-01-30,20.1,58,36.20,34.7 2026-01-31,20.1,58,36.30,34.7 2026-02-01,20.1,57,36.30,35.3 2026-02-02,20.2,57,36.30,35.4 2026-02-03,20.3,58,36.30,35.0 2026-02-04,20.5,57,36.40,36.0 2026-02-05,20.5,56,36.40,36.6 2026-02-06,20.5,56,36.40,36.6 2026-02-07,20.9,56,36.50,37.3 2026-02-08,20.7,56,36.50,37.0 2026-02-09,21.8,61,37.10,35.7 2026-02-10,22.1,68,37.90,32.5 2026-02-11,21.8,65,38.00,33.5 2026-02-12,21.5,64,38.10,33.6 2026-02-13,21.4,63,38.20,34.0 2026-02-14,21.3,63,38.20,33.8 2026-02-15,21.7,64,38.30,33.9 2026-02-16,22.9,75,39.30,30.5 2026-02-17,23.1,72,39.40,32.1 2026-02-18,23.5,75,39.60,31.3 2026-02-19,23.7,78,39.80,30.4 2026-02-20,23.6,75,39.90,31.5 2026-02-21,23.8,77,40.00,30.9 2026-02-22,23.9,75,40.20,31.9 2026-02-23,24.0,73,40.30,32.9 2026-02-24,24.4,73,40.40,33.4 2026-02-25,25.8,80,40.90,32.2 2026-02-26,26.1,81,41.40,32.2 2026-02-27,26.2,80,41.70,32.8 2026-02-28,26.2,78,41.90,33.6 2026-03-01,26.1,77,42.00,33.9 2026-03-02,26.1,76,42.00,34.3 2026-03-03,26.1,75,42.00,34.8 2026-03-04,26.2,74,42.20,35.4 2026-03-05,27.0,76,42.40,35.5 2026-03-06,27.4,80,42.80,34.2 2026-03-07,27.4,80,43.10,34.2 2026-03-08,27.7,78,43.40,35.5 2026-03-09,27.7,76,43.70,36.4 2026-03-10,27.7,76,43.80,36.4 2026-03-11,27.8,78,43.90,35.6 2026-03-12,29.3,87,44.20,33.7 2026-03-13,31.9,109,46.00,29.3 2026-03-14,34.5,114,47.80,30.3 2026-03-15,35.9,120,48.60,29.9 2026-03-16,36.2,114,49.50,31.8 2026-03-17,37.0,108,50.20,34.3 2026-03-18,37.2,102,50.70,36.5 2026-03-19,37.2,97,51.00,38.4 2026-03-20,37.0,94,51.30,39.4 2026-03-21,36.2,90,51.50,40.2 2026-03-22,35.8,89,51.70,40.2 2026-03-23,35.7,88,51.90,40.6 2026-03-24,35.7,87,52.00,41.0 2026-03-25,36.2,85,52.10,42.6 2026-03-26,36.5,86,53.20,42.4 2026-03-27,35.7,86,53.50,41.5 2026-03-28,35.6,84,54.20,42.4 2026-03-29,35.6,84,54.20,42.4 2026-03-30,35.8,85,54.50,42.1 2026-03-31,36.0,88,54.80,40.9 2026-04-01,36.6,86,55.20,42.6 2026-04-02,36.8,85,55.50,43.3 2026-04-03,37.6,94,56.20,40.0 2026-04-04,37.7,91,56.40,41.4 2026-04-05,37.6,88,56.40,42.7 2026-04-06,37.6,86,56.40,43.7 2026-04-07,37.4,84,56.40,44.5 2026-04-08,37.0,82,56.40,45.1 2026-04-09,36.4,81,56.40,44.9 2026-04-10,36.0,80,56.40,45.0 2026-04-11,36.1,78,56.40,46.3 2026-04-12,35.9,77,56.60,46.6 2026-04-13,35.1,76,56.70,46.2 2026-04-14,34.6,76,56.80,45.5 2026-04-15,34.5,75,56.90,46.0 2026-04-16,34.9,81,57.40,43.1 2026-04-17,35.7,88,58.20,40.6 2026-04-18,35.8,85,58.20,42.1 2026-04-19,35.8,81,58.40,44.2 2026-04-20,35.8,79,58.40,45.3 2026-04-21,35.7,76,58.40,47.0 2026-04-22,35.9,74,58.50,48.5 2026-04-23,36.2,81,59.40,44.7 2026-04-24,36.3,89,60.50,40.8 2026-04-25,36.1,86,60.60,42.0 2026-04-26,36.0,83,60.60,43.4 2026-04-27,36.2,83,60.80,43.6 2026-04-28,36.2,82,60.90,44.1 2026-04-29,36.5,80,61.20,45.6 2026-04-30,36.3,78,61.20,46.5 2026-05-01,35.9,76,61.20,47.2 2026-05-02,35.9,74,61.20,48.5 2026-05-03,35.7,72,61.20,49.6 2026-05-04,35.0,69,61.20,50.7 2026-05-05,33.7,67,61.20,50.3 2026-05-06,32.4,65,61.20,49.8 2026-05-07,31.4,62,61.20,50.6 2026-05-08,29.9,60,61.20,49.8 2026-05-09,28.6,58,61.20,49.3 2026-05-10,27.5,56,61.20,49.1 2026-05-11,26.2,53,61.20,49.4 2026-05-12,24.7,50,61.20,49.4 2026-05-13,23.2,47,61.30,49.4 2026-05-14,22.5,46,61.70,48.9 2026-05-15,21.3,44,61.90,48.4 2026-05-16,20.4,42,61.90,48.6 2026-05-17,20.7,46,62.30,45.0 2026-05-18,20.8,44,62.60,47.3 2026-05-19,20.5,43,62.60,47.7 2026-05-20,20.2,42,62.70,48.1