#------------------------------------------------- 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 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 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 # #------------------------------------------------------------------------------------------------------ # # Niwot (663) # Colorado SNOTEL Site - 9979 ft # Reporting Frequency: Daily; Date Range: 1980-10-01 to 1981-09-30 # # As of: May 3, 2024, 3:14:31 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 01,0.0,1.9,4.3,6.6,8.7,11.0,14.7,19.4,22.8,24.8,27.6,30.0 02,0.1,2.0,4.3,6.6,8.8,11.0,14.9,19.5,22.9,24.8,27.6,30.0 03,0.1,2.1,4.4,6.7,8.8,11.1,15.1,19.6,23.0,24.9,27.7,30.1 04,0.2,2.1,4.5,6.7,8.9,11.2,15.3,19.8,23.1,24.9,27.8,30.1 05,0.2,2.2,4.5,6.8,9.0,11.4,15.4,19.9,23.2,25.0,28.0,30.2 06,0.2,2.3,4.6,6.9,9.0,11.6,15.5,20.0,23.2,25.0,28.1,30.2 07,0.3,2.4,4.7,7.0,9.1,11.7,15.6,20.1,23.3,25.1,28.2,30.3 08,0.4,2.4,4.8,7.1,9.2,11.8,15.7,20.2,23.4,25.2,28.2,30.4 09,0.4,2.5,4.9,7.2,9.2,11.9,15.8,20.2,23.5,25.3,28.3,30.5 10,0.5,2.6,5.0,7.2,9.3,12.0,16.0,20.3,23.6,25.4,28.4,30.6 11,0.5,2.7,5.1,7.3,9.4,12.1,16.2,20.4,23.6,25.5,28.5,30.6 12,0.6,2.8,5.2,7.4,9.4,12.2,16.3,20.5,23.7,25.5,28.6,30.7 13,0.6,2.9,5.2,7.5,9.6,12.3,16.4,20.7,23.8,25.6,28.7,30.7 14,0.7,3.0,5.3,7.5,9.7,12.4,16.5,20.9,23.8,25.7,28.8,30.9 15,0.8,3.2,5.4,7.5,9.8,12.5,16.6,21.0,23.8,25.7,28.9,30.9 16,0.8,3.2,5.4,7.6,9.9,12.7,16.7,21.1,23.9,25.8,28.9,31.0 17,0.9,3.3,5.5,7.6,10.0,12.7,16.9,21.2,24.0,25.9,29.0,31.0 18,1.0,3.3,5.6,7.7,10.0,12.9,17.1,21.4,24.1,25.9,29.1,31.0 19,1.0,3.4,5.6,7.8,10.2,13.2,17.2,21.5,24.2,26.0,29.2,31.1 20,1.1,3.4,5.7,7.9,10.3,13.3,17.4,21.6,24.2,26.1,29.3,31.2 21,1.1,3.5,5.8,7.9,10.4,13.4,17.6,21.6,24.3,26.2,29.3,31.3 22,1.2,3.6,5.8,8.0,10.4,13.4,17.8,21.7,24.3,26.2,29.4,31.4 23,1.2,3.6,5.9,8.0,10.5,13.5,18.0,21.7,24.4,26.3,29.5,31.4 24,1.3,3.7,6.0,8.1,10.6,13.6,18.2,21.9,24.4,26.4,29.5,31.5 25,1.4,3.7,6.1,8.2,10.6,13.7,18.5,22.0,24.4,26.6,29.6,31.6 26,1.4,3.8,6.2,8.3,10.7,13.9,18.7,22.1,24.5,26.7,29.6,31.6 27,1.5,3.9,6.2,8.4,10.8,14.0,18.8,22.3,24.6,26.8,29.7,31.6 28,1.6,4.0,6.3,8.4,10.9,14.2,18.9,22.3,24.6,26.9,29.7,31.7 29,1.7,4.1,6.4,8.5,,14.3,19.0,22.5,24.6,27.1,29.8,31.8 30,1.7,4.2,6.4,8.6,,14.4,19.2,22.6,24.7,27.2,29.9,31.8 31,1.8,,6.5,8.6,,14.6,,22.7,,27.4,29.9,