#------------------------------------------------- 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 663: Niwot, CO # # 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 Median (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 # #------------------------------------------------------------------------------------------------------ # # Niwot (663) # Colorado SNOTEL Site - 9979 ft # Reporting Frequency: Daily; Date Range: 1990-10-01 to 1991-09-30 # # As of: May 17, 2024, 2:17:16 AM GMT-08:00 # Day,Oct,Nov,Dec,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep ,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values,Median Precipitation Accumulation (1991-2020) (in) Start of Month Values 01,0.0,2.0,4.5,6.3,8.2,11.4,14.9,19.6,23.0,24.9,26.8,29.0 02,0.0,2.0,4.6,6.4,8.2,11.4,15.0,19.6,23.1,24.9,26.8,29.0 03,0.0,2.0,4.6,6.4,8.4,11.6,15.2,19.6,23.1,24.9,27.0,29.0 04,0.0,2.2,4.8,6.4,8.4,11.7,15.2,20.0,23.1,25.0,27.1,29.0 05,0.1,2.2,4.8,6.4,8.6,11.7,15.2,20.2,23.1,25.1,27.2,29.2 06,0.1,2.2,5.0,6.4,8.6,11.7,15.2,20.3,23.4,25.2,27.4,29.2 07,0.2,2.2,5.0,6.5,8.6,11.7,15.2,20.3,23.4,25.2,27.4,29.2 08,0.2,2.3,5.1,6.6,9.0,11.8,15.4,20.4,23.4,25.2,27.4,29.2 09,0.3,2.4,5.2,6.6,9.0,12.0,15.7,20.6,23.4,25.2,27.4,29.4 10,0.4,2.6,5.2,6.6,9.1,12.0,15.7,20.8,23.4,25.3,27.6,29.4 11,0.4,2.8,5.2,6.7,9.2,12.0,16.1,20.9,23.4,25.3,27.7,29.6 12,0.6,2.8,5.2,6.8,9.3,12.1,16.2,21.2,23.4,25.3,27.8,29.6 13,0.6,2.8,5.2,6.8,9.4,12.2,16.3,21.3,23.6,25.4,27.8,29.8 14,0.6,3.0,5.2,6.8,9.6,12.4,16.4,21.4,23.8,25.4,27.8,30.1 15,0.7,3.0,5.4,7.0,9.8,12.4,16.4,21.6,23.8,25.4,27.8,30.1 16,0.7,3.2,5.5,7.0,10.1,12.6,16.5,21.7,23.9,25.4,27.8,30.2 17,0.8,3.2,5.5,7.0,10.2,12.7,16.8,21.8,24.0,25.6,27.8,30.2 18,0.8,3.2,5.6,7.1,10.2,13.2,17.0,22.0,24.3,25.6,27.8,30.2 19,0.9,3.4,5.6,7.2,10.2,13.2,17.0,22.0,24.4,25.6,28.0,30.2 20,1.0,3.4,5.6,7.5,10.2,13.4,17.1,22.2,24.4,25.6,28.0,30.2 21,1.0,3.5,5.6,7.6,10.4,13.5,17.2,22.2,24.5,25.7,28.1,30.2 22,1.1,3.6,5.6,7.6,10.8,13.6,17.8,22.2,24.6,25.7,28.2,30.2 23,1.2,3.6,5.8,7.8,10.8,13.6,17.8,22.2,24.8,25.8,28.4,30.3 24,1.2,3.7,5.8,7.8,11.2,13.8,17.9,22.4,24.8,25.8,28.4,30.3 25,1.4,3.8,5.8,7.9,11.2,13.9,18.0,22.6,24.8,25.9,28.4,30.3 26,1.4,4.0,6.0,7.9,11.2,14.0,18.2,22.6,24.8,26.2,28.5,30.3 27,1.6,4.2,6.0,8.0,11.2,14.2,18.4,22.8,24.8,26.4,28.5,30.3 28,1.6,4.2,6.0,8.0,11.3,14.2,18.8,22.8,24.9,26.5,28.6,30.3 29,1.7,4.2,6.1,8.0,,14.4,18.9,22.8,24.9,26.6,28.6,30.4 30,1.8,4.4,6.2,8.1,,14.5,19.2,22.8,24.9,26.8,28.9,30.4 31,1.9,,6.3,8.2,,14.6,,23.0,,26.8,28.9,