#------------------------------------------------- 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 # Snow Water Equivalent Average (1991-2020) 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 # # 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 1, 2024, 11:23:02 PM GMT-08:00 # Day,Oct,Nov,Dec,Jan,Feb,Mar,Apr,May,Jun,Jul,Aug,Sep ,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values,Average Snow Water Equivalent (1991-2020) (in) Start of Month Values 01,0.0,1.0,2.9,5.0,7.3,9.7,12.0,12.1,2.1,0.0,0.0,0.0 02,0.0,1.1,3.0,5.1,7.4,9.8,12.0,12.0,1.7,0.0,0.0,0.0 03,0.1,1.2,3.0,5.1,7.5,9.9,12.1,11.9,1.5,0.0,0.0,0.0 04,0.0,1.2,3.1,5.2,7.6,10.0,12.2,11.7,1.3,0.0,0.0,0.0 05,0.1,1.3,3.1,5.3,7.7,10.1,12.2,11.6,1.0,0.0,0.0,0.0 06,0.0,1.3,3.2,5.4,7.8,10.2,12.2,11.3,0.9,0.0,0.0,0.0 07,0.1,1.4,3.3,5.5,7.8,10.3,12.2,10.9,0.7,0.0,0.0,0.0 08,0.1,1.4,3.4,5.6,8.0,10.3,12.1,10.6,0.7,0.0,0.0,0.0 09,0.1,1.4,3.5,5.7,8.0,10.4,12.1,10.4,0.6,0.0,0.0,0.1 10,0.1,1.5,3.6,5.8,8.1,10.5,12.1,10.2,0.6,0.0,0.0,0.1 11,0.2,1.6,3.6,5.9,8.2,10.5,12.2,9.9,0.5,0.0,0.0,0.0 12,0.2,1.6,3.7,6.0,8.3,10.6,12.1,9.7,0.5,0.0,0.0,0.0 13,0.2,1.7,3.7,6.1,8.4,10.7,12.2,9.3,0.4,0.0,0.0,0.0 14,0.2,1.8,3.8,6.1,8.5,10.8,12.1,8.9,0.4,0.0,0.0,0.0 15,0.2,1.9,3.9,6.1,8.5,10.8,12.1,8.4,0.3,0.0,0.0,0.0 16,0.2,1.9,4.0,6.2,8.6,10.8,12.2,8.0,0.3,0.0,0.0,0.0 17,0.3,2.0,4.0,6.3,8.7,10.9,12.4,7.5,0.3,0.0,0.0,0.0 18,0.3,2.1,4.1,6.3,8.8,11.0,12.5,7.2,0.3,0.0,0.0,0.0 19,0.3,2.2,4.2,6.4,8.9,11.2,12.5,6.9,0.2,0.0,0.0,0.0 20,0.3,2.2,4.2,6.5,9.0,11.3,12.4,6.5,0.2,0.0,0.0,0.0 21,0.4,2.3,4.4,6.5,9.0,11.3,12.4,6.2,0.1,0.0,0.0,0.1 22,0.4,2.3,4.5,6.6,9.1,11.3,12.4,5.6,0.1,0.0,0.0,0.1 23,0.5,2.4,4.5,6.7,9.2,11.3,12.4,5.3,0.0,0.0,0.0,0.1 24,0.5,2.4,4.6,6.8,9.4,11.4,12.4,4.9,0.0,0.0,0.0,0.1 25,0.6,2.5,4.6,6.8,9.4,11.5,12.4,4.6,0.0,0.0,0.0,0.1 26,0.7,2.5,4.7,6.9,9.5,11.6,12.5,4.2,0.0,0.0,0.0,0.1 27,0.8,2.6,4.7,6.9,9.6,11.6,12.5,3.8,0.0,0.0,0.0,0.1 28,0.8,2.7,4.8,7.0,9.6,11.8,12.3,3.4,0.0,0.0,0.0,0.1 29,0.8,2.8,4.9,7.1,,11.8,12.2,3.1,0.0,0.0,0.0,0.1 30,0.9,2.8,4.9,7.1,,11.9,12.2,2.8,0.0,0.0,0.0,0.0 31,0.9,,5.0,7.2,,12.0,,2.6,,0.0,0.0,