#------------------------------------------------- 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: 2024-10-01 to 2025-09-30 # Report Instantaneous Data As: Start of Day # # Data for the following site(s) are contained in this file: # # SNOTEL 840: Upper San Juan, CO # # 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 Water Equivalent Median (1981-2010) 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 # Precipitation Accumulation Value None Instantaneous - Start of Day N/A Inches N/A PREC Water year accumulated precipitation # 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 # 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 # #------------------------------------------------------------------------------------------------------ # # Upper San Juan (840) Colorado SNOTEL Site - 10140 ft # Reporting Frequency: Daily; Date Range: 2024-10-01 to 2025-09-30 # # As of: May 12, 2025, 10:22:10 AM GMT-08:00 # Date,Snow Water Equivalent (in) Start of Day Values,Median Snow Water Equivalent (1981-2010) (in) Start of Day Values,Precipitation Accumulation (in) Start of Day Values,Average Precipitation Accumulation (1981-2010) (in) Start of Day Values 2024-10-01,0.0,0.0,0.00,0.00 2024-10-02,0.0,0.0,0.00,0.13 2024-10-03,0.0,0.0,0.00,0.32 2024-10-04,0.0,0.0,0.00,0.51 2024-10-05,0.0,0.0,0.00,0.75 2024-10-06,0.0,0.0,0.00,0.87 2024-10-07,0.0,0.0,0.00,0.99 2024-10-08,0.0,0.0,0.00,1.21 2024-10-09,0.0,0.0,0.00,1.30 2024-10-10,0.0,0.0,0.00,1.43 2024-10-11,0.0,0.0,0.00,1.59 2024-10-12,0.0,0.0,0.00,1.90 2024-10-13,0.0,0.0,0.00,2.00 2024-10-14,0.0,0.0,0.00,2.11 2024-10-15,0.0,0.0,0.00,2.32 2024-10-16,0.0,0.0,0.00,2.56 2024-10-17,0.6,0.0,0.80,2.72 2024-10-18,0.6,0.0,1.40,2.92 2024-10-19,1.2,0.0,2.20,2.98 2024-10-20,1.4,0.3,2.50,3.11 2024-10-21,2.0,0.3,3.10,3.19 2024-10-22,1.8,0.3,3.10,3.28 2024-10-23,1.6,0.3,3.10,3.34 2024-10-24,1.4,0.4,3.10,3.42 2024-10-25,1.0,0.5,3.10,3.58 2024-10-26,0.5,0.6,3.10,3.78 2024-10-27,0.0,0.7,3.10,4.00 2024-10-28,0.0,0.8,3.10,4.22 2024-10-29,0.2,0.9,3.30,4.47 2024-10-30,0.3,1.1,3.70,4.62 2024-10-31,0.9,1.3,4.20,4.85 2024-11-01,0.8,1.5,4.20,5.00 2024-11-02,0.8,1.7,4.20,5.26 2024-11-03,1.0,1.9,4.30,5.43 2024-11-04,1.1,2.1,4.40,5.56 2024-11-05,1.3,2.3,4.70,5.62 2024-11-06,2.0,2.5,5.40,5.69 2024-11-07,2.7,2.5,6.00,5.79 2024-11-08,3.3,2.5,6.50,5.90 2024-11-09,3.3,2.6,6.50,6.24 2024-11-10,3.3,2.8,6.50,6.41 2024-11-11,3.3,2.9,6.50,6.67 2024-11-12,3.1,3.0,6.50,7.02 2024-11-13,3.1,3.2,6.50,7.25 2024-11-14,3.1,3.3,6.50,7.47 2024-11-15,3.1,3.6,6.50,7.68 2024-11-16,3.1,3.8,6.50,7.85 2024-11-17,3.1,3.9,6.50,7.95 2024-11-18,3.1,4.2,6.50,8.10 2024-11-19,3.0,4.4,6.50,8.25 2024-11-20,2.9,4.6,6.50,8.33 2024-11-21,2.9,4.8,6.50,8.56 2024-11-22,2.9,5.1,6.50,8.65 2024-11-23,2.9,5.3,6.50,8.83 2024-11-24,3.0,5.6,6.60,8.96 2024-11-25,3.2,5.7,6.70,9.14 2024-11-26,3.3,5.9,6.80,9.48 2024-11-27,5.5,6.1,8.90,9.68 2024-11-28,6.1,6.2,9.60,9.82 2024-11-29,6.1,6.4,9.60,10.04 2024-11-30,6.1,6.6,9.60,10.41 2024-12-01,6.1,6.7,9.60,10.68 2024-12-02,6.1,6.9,9.60,10.86 2024-12-03,6.1,7.1,9.60,10.95 2024-12-04,6.1,7.4,9.60,11.08 2024-12-05,6.1,7.6,9.60,11.15 2024-12-06,6.1,7.7,9.60,11.31 2024-12-07,6.1,7.8,9.60,11.53 2024-12-08,6.1,7.9,9.60,11.87 2024-12-09,6.1,8.0,9.60,12.15 2024-12-10,6.1,8.1,9.60,12.23 2024-12-11,6.1,8.1,9.60,12.47 2024-12-12,6.1,8.2,9.60,12.66 2024-12-13,6.1,8.2,9.60,12.84 2024-12-14,6.1,8.2,9.60,13.13 2024-12-15,6.1,8.4,9.60,13.21 2024-12-16,6.1,8.6,9.60,13.34 2024-12-17,6.1,8.9,9.70,13.48 2024-12-18,6.1,9.2,9.70,13.65 2024-12-19,6.1,9.6,9.70,13.82 2024-12-20,6.1,10.0,9.70,14.02 2024-12-21,6.1,10.4,9.70,14.19 2024-12-22,6.1,10.8,9.70,14.32 2024-12-23,6.2,11.0,9.80,14.55 2024-12-24,6.2,11.3,9.80,14.76 2024-12-25,6.2,11.5,9.80,14.87 2024-12-26,6.4,11.7,10.10,15.09 2024-12-27,6.7,12.0,10.30,15.26 2024-12-28,6.9,12.3,10.50,15.43 2024-12-29,6.9,12.7,10.50,15.67 2024-12-30,6.9,13.0,10.50,15.87 2024-12-31,6.9,13.4,10.50,16.02 2025-01-01,6.9,13.8,10.50,16.17 2025-01-02,6.9,14.4,10.50,16.28 2025-01-03,6.9,14.8,10.50,16.54 2025-01-04,6.9,15.3,10.50,16.75 2025-01-05,6.9,15.6,10.50,17.12 2025-01-06,6.9,16.0,10.50,17.58 2025-01-07,6.9,16.3,10.50,17.75 2025-01-08,6.9,16.5,10.50,17.95 2025-01-09,6.9,16.5,10.50,18.14 2025-01-10,7.0,16.5,10.70,18.23 2025-01-11,7.0,16.4,10.70,18.37 2025-01-12,7.0,16.3,10.80,18.67 2025-01-13,7.0,16.3,10.80,18.89 2025-01-14,7.0,16.3,10.80,19.07 2025-01-15,7.0,16.3,10.80,19.19 2025-01-16,7.0,16.3,10.80,19.31 2025-01-17,7.0,16.3,10.80,19.45 2025-01-18,7.0,16.4,10.80,19.63 2025-01-19,7.0,16.6,10.80,19.77 2025-01-20,7.0,16.9,10.80,19.94 2025-01-21,7.0,17.3,10.80,20.06 2025-01-22,6.9,17.6,10.80,20.22 2025-01-23,6.9,18.0,10.80,20.34 2025-01-24,6.9,18.4,10.80,20.40 2025-01-25,6.9,18.7,10.90,20.51 2025-01-26,7.0,19.0,11.00,20.72 2025-01-27,7.0,19.1,11.00,20.93 2025-01-28,7.0,19.2,11.00,21.20 2025-01-29,7.0,19.3,11.10,21.42 2025-01-30,7.2,19.4,11.30,21.50 2025-01-31,7.2,19.4,11.30,21.61 2025-02-01,7.2,19.5,11.30,21.84 2025-02-02,7.2,19.5,11.30,22.02 2025-02-03,7.3,19.5,11.40,22.19 2025-02-04,7.4,19.5,11.40,22.39 2025-02-05,7.4,19.6,11.40,22.70 2025-02-06,7.4,19.7,11.40,22.82 2025-02-07,7.4,19.9,11.40,22.88 2025-02-08,7.4,20.1,11.40,23.09 2025-02-09,7.4,20.2,11.40,23.40 2025-02-10,7.4,20.5,11.40,23.67 2025-02-11,7.4,20.8,11.40,23.87 2025-02-12,7.4,21.2,11.40,24.00 2025-02-13,7.4,21.5,11.40,24.17 2025-02-14,7.4,21.8,11.70,24.43 2025-02-15,9.2,22.1,13.40,24.71 2025-02-16,9.2,22.5,13.40,24.90 2025-02-17,9.2,22.8,13.40,25.17 2025-02-18,9.2,23.2,13.40,25.38 2025-02-19,9.2,23.5,13.40,25.63 2025-02-20,9.2,23.9,13.40,25.94 2025-02-21,9.2,24.2,13.40,26.22 2025-02-22,9.2,24.5,13.40,26.41 2025-02-23,9.3,24.8,13.50,26.54 2025-02-24,9.3,25.1,13.50,26.66 2025-02-25,9.3,25.3,13.50,26.93 2025-02-26,9.3,25.5,13.50,27.24 2025-02-27,9.3,25.7,13.50,27.41 2025-02-28,9.3,25.8,13.50,27.56 2025-03-01,9.3,26.0,13.50,27.85 2025-03-02,9.3,26.1,13.50,28.05 2025-03-03,9.3,26.1,13.50,28.28 2025-03-04,9.6,26.2,14.00,28.42 2025-03-05,9.6,26.3,14.00,28.69 2025-03-06,10.0,26.5,14.40,28.94 2025-03-07,10.5,26.7,14.90,29.16 2025-03-08,10.6,27.0,15.10,29.30 2025-03-09,10.7,27.2,15.30,29.54 2025-03-10,10.7,27.4,15.30,29.72 2025-03-11,10.7,27.7,15.30,29.94 2025-03-12,10.7,27.8,15.30,30.21 2025-03-13,10.7,28.0,15.30,30.39 2025-03-14,11.6,28.2,16.00,30.59 2025-03-15,12.5,28.4,16.90,30.73 2025-03-16,12.5,28.5,17.00,30.89 2025-03-17,12.5,28.5,17.10,31.04 2025-03-18,12.5,28.6,17.30,31.25 2025-03-19,12.5,28.9,17.30,31.38 2025-03-20,12.5,29.0,17.30,31.53 2025-03-21,12.8,29.2,17.30,31.67 2025-03-22,12.7,29.3,17.30,31.84 2025-03-23,12.7,29.6,17.40,32.02 2025-03-24,12.3,29.9,17.40,32.11 2025-03-25,11.8,30.2,17.40,32.21 2025-03-26,11.8,30.6,17.40,32.34 2025-03-27,11.8,30.8,17.40,32.52 2025-03-28,11.5,31.0,17.40,32.86 2025-03-29,11.3,31.2,17.40,33.19 2025-03-30,11.1,31.3,17.40,33.51 2025-03-31,10.9,31.5,17.40,33.69 2025-04-01,10.9,31.6,17.40,33.79 2025-04-02,10.7,31.7,17.50,34.04 2025-04-03,10.8,31.8,17.90,34.24 2025-04-04,11.1,31.9,18.30,34.41 2025-04-05,11.6,32.0,18.80,34.62 2025-04-06,11.6,32.2,18.80,34.74 2025-04-07,11.6,32.3,18.80,34.93 2025-04-08,11.4,32.3,18.80,35.05 2025-04-09,11.1,32.3,18.80,35.18 2025-04-10,11.1,32.3,18.80,35.33 2025-04-11,10.5,32.3,18.80,35.43 2025-04-12,9.8,32.3,18.80,35.54 2025-04-13,9.0,32.3,18.80,35.70 2025-04-14,8.4,32.2,18.80,35.80 2025-04-15,7.5,32.1,18.80,35.88 2025-04-16,6.9,31.9,18.90,35.98 2025-04-17,6.4,31.7,19.00,36.11 2025-04-18,5.8,31.4,19.00,36.22 2025-04-19,6.2,31.2,19.50,36.34 2025-04-20,6.8,31.0,20.20,36.44 2025-04-21,7.0,30.8,20.20,36.52 2025-04-22,6.8,30.6,20.20,36.70 2025-04-23,6.7,30.3,20.20,36.94 2025-04-24,6.0,30.1,20.20,37.07 2025-04-25,5.2,29.9,20.20,37.29 2025-04-26,4.3,29.7,20.20,37.47 2025-04-27,3.2,29.6,20.20,37.55 2025-04-28,2.5,29.4,20.20,37.62 2025-04-29,1.6,29.3,20.20,37.81 2025-04-30,1.0,29.3,20.20,37.93 2025-05-01,0.1,29.3,20.20,38.07 2025-05-02,0.0,29.1,20.40,38.23 2025-05-03,0.0,28.9,20.30,38.33 2025-05-04,0.0,28.6,20.30,38.46 2025-05-05,0.4,28.2,20.80,38.54 2025-05-06,1.0,27.6,21.50,38.67 2025-05-07,2.0,26.9,22.30,38.80 2025-05-08,1.9,26.1,22.30,38.93 2025-05-09,1.4,25.5,22.20,39.01 2025-05-10,0.9,24.7,22.20,39.10 2025-05-11,0.0,24.0,22.20,39.15 2025-05-12,0.0,23.3,22.10,39.16 2025-05-13,,22.5,,39.25 2025-05-14,,21.8,,39.30 2025-05-15,,21.0,,39.39 2025-05-16,,20.2,,39.52 2025-05-17,,19.3,,39.62 2025-05-18,,18.4,,39.67 2025-05-19,,17.5,,39.71 2025-05-20,,16.4,,39.76 2025-05-21,,15.3,,39.87 2025-05-22,,14.2,,39.97 2025-05-23,,13.1,,40.05 2025-05-24,,11.9,,40.14 2025-05-25,,10.7,,40.22 2025-05-26,,9.4,,40.31 2025-05-27,,8.1,,40.41 2025-05-28,,6.7,,40.45 2025-05-29,,5.2,,40.49 2025-05-30,,3.8,,40.58 2025-05-31,,2.2,,40.64 2025-06-01,,0.8,,40.68 2025-06-02,,0.0,,40.70 2025-06-03,,0.0,,40.72 2025-06-04,,0.0,,40.76 2025-06-05,,0.0,,40.79 2025-06-06,,0.0,,40.88 2025-06-07,,0.0,,40.92 2025-06-08,,0.0,,41.00 2025-06-09,,0.0,,41.05 2025-06-10,,0.0,,41.07 2025-06-11,,0.0,,41.13 2025-06-12,,0.0,,41.18 2025-06-13,,0.0,,41.20 2025-06-14,,0.0,,41.24 2025-06-15,,0.0,,41.27 2025-06-16,,0.0,,41.32 2025-06-17,,0.0,,41.36 2025-06-18,,0.0,,41.42 2025-06-19,,0.0,,41.43 2025-06-20,,0.0,,41.45 2025-06-21,,0.0,,41.48 2025-06-22,,0.0,,41.56 2025-06-23,,0.0,,41.57 2025-06-24,,0.0,,41.61 2025-06-25,,0.0,,41.63 2025-06-26,,0.0,,41.72 2025-06-27,,0.0,,41.83 2025-06-28,,0.0,,41.86 2025-06-29,,0.0,,41.94 2025-06-30,,0.0,,42.00 2025-07-01,,0.0,,42.14 2025-07-02,,0.0,,42.22 2025-07-03,,0.0,,42.26 2025-07-04,,0.0,,42.30 2025-07-05,,0.0,,42.32 2025-07-06,,0.0,,42.39 2025-07-07,,0.0,,42.41 2025-07-08,,0.0,,42.46 2025-07-09,,0.0,,42.57 2025-07-10,,0.0,,42.68 2025-07-11,,0.0,,42.74 2025-07-12,,0.0,,42.79 2025-07-13,,0.0,,42.86 2025-07-14,,0.0,,42.95 2025-07-15,,0.0,,43.03 2025-07-16,,0.0,,43.10 2025-07-17,,0.0,,43.17 2025-07-18,,0.0,,43.30 2025-07-19,,0.0,,43.37 2025-07-20,,0.0,,43.47 2025-07-21,,0.0,,43.56 2025-07-22,,0.0,,43.75 2025-07-23,,0.0,,43.83 2025-07-24,,0.0,,43.96 2025-07-25,,0.0,,44.05 2025-07-26,,0.0,,44.19 2025-07-27,,0.0,,44.31 2025-07-28,,0.0,,44.40 2025-07-29,,0.0,,44.53 2025-07-30,,0.0,,44.68 2025-07-31,,0.0,,44.81 2025-08-01,,0.0,,44.90 2025-08-02,,0.0,,45.13 2025-08-03,,0.0,,45.29 2025-08-04,,0.0,,45.43 2025-08-05,,0.0,,45.55 2025-08-06,,0.0,,45.71 2025-08-07,,0.0,,45.85 2025-08-08,,0.0,,45.95 2025-08-09,,0.0,,46.00 2025-08-10,,0.0,,46.08 2025-08-11,,0.0,,46.21 2025-08-12,,0.0,,46.37 2025-08-13,,0.0,,46.47 2025-08-14,,0.0,,46.61 2025-08-15,,0.0,,46.73 2025-08-16,,0.0,,46.84 2025-08-17,,0.0,,46.95 2025-08-18,,0.0,,47.03 2025-08-19,,0.0,,47.19 2025-08-20,,0.0,,47.27 2025-08-21,,0.0,,47.38 2025-08-22,,0.0,,47.50 2025-08-23,,0.0,,47.70 2025-08-24,,0.0,,47.88 2025-08-25,,0.0,,48.09 2025-08-26,,0.0,,48.16 2025-08-27,,0.0,,48.27 2025-08-28,,0.0,,48.38 2025-08-29,,0.0,,48.51 2025-08-30,,0.0,,48.69 2025-08-31,,0.0,,48.79 2025-09-01,,0.0,,48.99 2025-09-02,,0.0,,49.08 2025-09-03,,0.0,,49.17 2025-09-04,,0.0,,49.31 2025-09-05,,0.0,,49.43 2025-09-06,,0.0,,49.50 2025-09-07,,0.0,,49.61 2025-09-08,,0.0,,49.78 2025-09-09,,0.0,,49.88 2025-09-10,,0.0,,50.08 2025-09-11,,0.0,,50.21 2025-09-12,,0.0,,50.43 2025-09-13,,0.0,,50.58 2025-09-14,,0.0,,50.75 2025-09-15,,0.0,,50.92 2025-09-16,,0.0,,51.07 2025-09-17,,0.0,,51.13 2025-09-18,,0.0,,51.23 2025-09-19,,0.0,,51.48 2025-09-20,,0.0,,51.72 2025-09-21,,0.0,,51.96 2025-09-22,,0.0,,52.13 2025-09-23,,0.0,,52.28 2025-09-24,,0.0,,52.35 2025-09-25,,0.0,,52.40 2025-09-26,,0.0,,52.52 2025-09-27,,0.0,,52.56 2025-09-28,,0.0,,52.66 2025-09-29,,0.0,,52.80 2025-09-30,,0.0,,53.01