#------------------------------------------------- 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: End of Day # # Data for the following site(s) are contained in this file: # # SNOTEL 957: Atigun Pass, AK # # Data items provided in this file: # # Element Name Value Type Function Type Function Duration Base Data Measurement Units Sensor Depth Element Code Description # Air Temperature Maximum Value None Day N/A Degrees fahrenheit N/A TMAX Maximum air temperature - sub-hourly sampling frequency # Air Temperature Minimum Value None Day N/A Degrees fahrenheit N/A TMIN Minimum air temperature - sub-hourly sampling frequency # Air Temperature Average Value None Day N/A Degrees fahrenheit N/A TAVG Average air temperature - sub-hourly sampling frequency # Precipitation Accumulation Value None Instantaneous - End of Day N/A Inches N/A PREC Water year accumulated precipitation # Snow Depth Value None Instantaneous - End of Day N/A Inches N/A SNWD Total snow depth # Solar Radiation Average Value None Day N/A Watts/meter squared N/A SRADV Average solar radiation # Wind Speed Maximum Value None Day N/A Miles/hour N/A WSPDX Maximum wind speed # Wind Speed Average Value None Day N/A Miles/hour N/A WSPDV Average wind speed # Wind Direction Average Value None Day N/A Degrees N/A WDIRV Average wind direction # Soil Moisture Percent Value None Instantaneous - End of Day N/A Percent -2 SMS Percent volumetric soil moisture # Soil Moisture Percent Value None Instantaneous - End of Day N/A Percent -8 SMS Percent volumetric soil moisture # Soil Moisture Percent Value None Instantaneous - End of Day N/A Percent -20 SMS Percent volumetric soil moisture # Soil Temperature Observed Value None Instantaneous - End of Day N/A Degrees fahrenheit -2 STO Observed soil temperature # Soil Temperature Observed Value None Instantaneous - End of Day N/A Degrees fahrenheit -8 STO Observed soil temperature # Soil Temperature Observed Value None Instantaneous - End of Day N/A Degrees fahrenheit -20 STO Observed soil temperature # # 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 # #------------------------------------------------------------------------------------------------------ # # Atigun Pass (957) # Alaska SNOTEL Site - 4780 ft # Reporting Frequency: Daily; Date Range: 2025-10-01 to 2026-09-30 # # As of: Jan 22, 2026, 9:41:35 PM GMT-08:00 # Date,Air Temperature Maximum (degF),Air Temperature Minimum (degF),Air Temperature Average (degF),Precipitation Accumulation (in) End of Day Values,Snow Depth (in) End of Day Values,Solar Radiation Average (watt/m2),Wind Speed Maximum (mph),Wind Speed Average (mph),Wind Direction Average (degree),Soil Moisture Percent -2in (pct) End of Day Values,Soil Moisture Percent -8in (pct) End of Day Values,Soil Moisture Percent -20in (pct) End of Day Values,Soil Temperature Observed -2in (degF) End of Day Values,Soil Temperature Observed -8in (degF) End of Day Values,Soil Temperature Observed -20in (degF) End of Day Values 2025-10-01,13.0,10.0,12.0,0.0,12,23.86,20.4,9.1,166,4.9,2.9,7.3,31,30,31 2025-10-02,20.0,12.0,16.0,0.1,12,15.50,12.4,3.3,163,4.4,2.3,6.8,31,30,30 2025-10-03,20.0,13.0,17.0,0.1,12,24.96,13.5,4.6,173,4.3,2.5,7.1,30,30,30 2025-10-04,19.0,11.0,15.0,0.2,12,45.81,16.1,7.0,160,3.4,1.9,6.5,30,29,30 2025-10-05,28.0,18.0,22.0,0.3,14,36.31,12.1,5.7,180,4.2,1.9,6.6,30,29,30 2025-10-06,31.0,25.0,28.0,0.4,14,38.15,9.4,4.5,341,3.6,1.4,6.5,30,30,30 2025-10-07,29.0,24.0,26.0,0.5,23,22.64,23.4,11.3,181,4.0,2.0,6.5,30,30,30 2025-10-08,35.0,25.0,28.0,0.7,23,30.74,46.2,20.3,174,4.9,2.6,6.5,31,30,30 2025-10-09,25.0,20.0,22.0,0.9,25,33.53,47.3,15.3,169,4.7,2.5,6.5,31,30,31 2025-10-10,20.0,9.0,14.0,1.0,28,37.28,30.6,6.8,7,4.3,2.2,6.3,30,29,30 2025-10-11,14.0,6.0,11.0,1.0,27,19.29,18.5,7.3,171,3.5,1.4,6.2,30,28,30 2025-10-12,25.0,8.0,15.0,1.1,21,21.64,48.0,21.4,172,3.5,1.6,5.8,29,28,29 2025-10-13,22.0,17.0,19.0,1.3,23,26.84,32.0,11.5,160,3.2,1.9,5.8,29,28,29 2025-10-14,20.0,15.0,17.0,1.3,23,25.02,13.2,5.4,159,3.2,1.6,5.8,29,28,29 2025-10-15,21.0,15.0,19.0,1.4,22,15.68,6.9,1.7,176,2.7,1.9,5.8,29,28,29 2025-10-16,20.0,14.0,17.0,1.4,22,12.82,9.4,2.6,29,3.3,1.3,6.1,28,27,29 2025-10-17,21.0,13.0,18.0,1.5,23,24.84,11.8,3.4,157,2.9,2.1,5.7,28,27,29 2025-10-18,18.0,15.0,17.0,1.5,21,24.66,9.6,2.7,13,2.4,2.1,5.7,28,27,29 2025-10-19,16.0,10.0,13.0,1.7,28,20.12,11.2,5.9,2,2.6,2.1,6.1,28,27,29 2025-10-20,10.0,5.0,7.0,1.7,31,15.87,14.6,7.3,357,2.3,1.6,6.1,28,27,29 2025-10-21,12.0,5.0,7.0,1.7,28,14.55,7.3,1.5,356,2.7,1.1,5.8,25,24,28 2025-10-22,5.0,-3.0,2.0,1.8,26,15.10,17.6,8.3,335,1.8,0.8,5.0,22,19,25 2025-10-23,6.0,-2.0,3.0,1.8,27,13.56,14.8,9.9,334,1.6,1.1,5.2,24,22,24 2025-10-24,16.0,5.0,7.0,1.8,26,11.70,14.0,4.6,346,1.6,0.8,4.6,25,23,25 2025-10-25,17.0,9.0,14.0,2.0,28,9.75,0.0,0.0,0,2.4,1.1,5.0,26,24,26 2025-10-26,11.0,4.0,7.0,2.0,27,7.78,9.5,1.4,337,2.4,1.1,5.5,26,25,26 2025-10-27,4.0,-2.0,1.0,2.0,28,4.48,13.3,6.2,32,2.1,1.1,5.3,26,24,26 2025-10-28,9.0,1.0,4.0,2.0,27,6.29,5.8,1.2,200,1.9,1.1,5.3,25,24,26 2025-10-29,13.0,-2.0,4.0,2.1,26,3.82,15.6,1.9,145,2.4,1.4,5.0,25,24,26 2025-10-30,18.0,10.0,12.0,2.1,26,7.99,17.6,5.3,158,2.4,1.1,5.5,25,24,26 2025-10-31,20.0,-2.0,7.0,2.1,26,8.54,17.0,9.4,337,2.4,0.9,5.0,25,24,26 2025-11-01,21.0,-1.0,11.0,2.1,26,6.66,15.6,6.1,335,2.4,0.8,5.0,25,24,26 2025-11-02,20.0,9.0,14.0,2.1,25,4.62,12.0,2.9,164,2.4,1.1,5.5,26,25,26 2025-11-03,11.0,6.0,9.0,2.1,25,5.19,0.1,0.0,156,1.9,0.9,5.5,25,24,26 2025-11-04,13.0,4.0,7.0,2.2,25,4.42,2.1,0.3,155,2.4,1.4,5.0,25,24,26 2025-11-05,14.0,3.0,8.0,2.2,29,4.18,3.8,0.8,155,2.4,1.1,5.5,25,24,26 2025-11-06,7.0,-1.0,3.0,2.2,27,4.28,13.8,3.3,151,1.9,1.1,5.0,24,24,26 2025-11-07,10.0,1.0,4.0,2.3,28,4.31,8.7,4.6,334,2.6,1.4,5.0,24,24,25 2025-11-08,12.0,2.0,4.0,2.4,33,3.11,8.8,5.3,326,1.9,1.4,4.6,25,24,26 2025-11-09,12.0,1.0,7.0,2.4,31,2.11,4.6,0.8,171,1.9,0.9,5.5,25,25,26 2025-11-10,8.0,3.0,5.0,2.4,30,1.88,7.3,1.4,140,2.4,0.9,4.9,25,25,26 2025-11-11,7.0,2.0,4.0,2.4,30,2.44,13.0,4.1,142,2.4,0.9,5.3,25,25,26 2025-11-12,7.0,3.0,5.0,2.4,30,2.31,11.6,2.4,174,1.9,1.1,5.3,25,25,26 2025-11-13,5.0,-4.0,1.0,2.4,30,2.81,7.3,3.3,335,1.9,0.6,5.3,25,24,26 2025-11-14,6.0,-3.0,1.0,2.4,30,2.24,8.3,5.0,334,2.4,0.8,4.8,25,24,26 2025-11-15,1.0,-18.0,-9.0,2.4,30,2.34,19.7,9.2,341,2.6,1.1,4.6,24,23,25 2025-11-16,-6.0,-12.0,-10.0,2.4,30,1.88,10.3,5.6,168,2.1,1.1,4.8,23,22,24 2025-11-17,2.0,-12.0,-7.0,2.4,30,2.36,20.2,10.9,178,2.0,1.1,5.0,20,21,24 2025-11-18,11.0,2.0,7.0,2.5,30,2.26,13.7,7.5,175,1.8,1.1,5.0,22,22,24 2025-11-19,14.0,6.0,9.0,2.5,33,1.94,14.2,4.5,179,1.8,1.4,5.0,23,23,24 2025-11-20,18.0,7.0,12.0,2.5,33,1.75,20.4,6.1,180,1.8,0.8,4.8,24,23,25 2025-11-21,18.0,4.0,13.0,2.5,33,1.63,17.6,9.7,356,1.6,0.8,4.8,24,24,25 2025-11-22,9.0,-2.0,3.0,2.5,33,1.87,18.5,9.1,343,1.8,1.1,4.8,24,24,25 2025-11-23,7.0,1.0,4.0,2.5,32,1.67,21.0,10.6,7,1.6,1.4,4.8,24,23,25 2025-11-24,10.0,1.0,5.0,2.5,33,1.48,12.6,6.8,347,1.8,0.8,4.8,24,23,25 2025-11-25,3.0,-8.0,-2.0,2.5,32,1.11,8.8,3.5,355,1.6,1.4,4.8,24,23,25 2025-11-26,4.0,-5.0,0.0,2.5,32,0.82,23.1,4.3,204,1.6,1.1,5.0,24,23,24 2025-11-27,5.0,-6.0,-2.0,2.5,32,0.68,13.0,6.5,165,1.6,0.8,4.8,24,23,24 2025-11-28,12.0,2.0,8.0,2.5,31,0.91,20.4,9.8,164,1.6,0.8,4.8,24,23,24 2025-11-29,15.0,8.0,12.0,2.6,31,0.82,17.6,5.9,101,1.6,0.8,4.8,24,23,24 2025-11-30,15.0,6.0,11.0,2.6,31,1.11,14.0,3.4,133,1.6,0.8,4.8,24,23,24 2025-12-01,14.0,-7.0,3.0,2.6,32,1.13,14.3,6.0,336,1.8,0.8,4.8,24,23,25 2025-12-02,-7.0,-23.0,-15.0,2.6,31,0.91,19.7,13.2,3,2.0,0.8,5.0,21,21,24 2025-12-03,-10.0,-22.0,-16.0,2.6,31,0.69,18.6,9.2,359,1.5,0.5,4.5,20,18,22 2025-12-04,1.0,-14.0,-7.0,2.6,32,0.65,20.2,8.2,85,2.0,0.7,4.7,19,18,21 2025-12-05,-14.0,-23.0,-17.0,2.6,30,0.77,33.4,17.7,2,1.7,0.5,4.7,18,17,20 2025-12-06,-9.0,-28.0,-22.0,2.6,29,0.60,30.5,13.6,352,1.7,0.9,4.0,18,16,19 2025-12-07,-5.0,-17.0,-10.0,2.6,29,0.66,17.6,9.0,156,1.7,0.9,4.0,19,17,19 2025-12-08,6.0,-8.0,-4.0,2.6,29,0.88,17.5,7.7,12,1.2,0.9,4.0,19,17,19 2025-12-09,-2.0,-8.0,-6.0,2.6,30,0.61,20.6,9.1,355,1.2,0.7,4.4,19,18,20 2025-12-10,-7.0,-18.0,-13.0,2.6,30,0.60,21.0,9.2,24,1.7,1.2,4.4,19,18,20 2025-12-11,-7.0,-16.0,-10.0,2.6,29,0.63,41.1,15.6,147,1.4,0.9,4.0,19,17,20 2025-12-12,1.0,-11.0,-8.0,2.6,29,0.80,57.3,21.0,226,1.2,0.7,4.4,19,18,20 2025-12-13,-10.0,-16.0,-13.0,2.6,33,0.74,39.8,19.0,349,1.4,1.2,4.4,19,18,20 2025-12-14,-6.0,-19.0,-15.0,3.0,33,0.61,27.0,12.0,360,1.4,0.8,4.4,20,18,20 2025-12-15,0.0,-8.0,-3.0,3.4,33,0.59,16.2,5.5,11,1.4,1.2,4.4,20,19,21 2025-12-16,-1.0,-15.0,-9.0,3.4,30,0.67,39.5,22.2,347,1.2,0.8,4.0,20,19,21 2025-12-17,-9.0,-17.0,-14.0,3.4,30,0.67,35.3,12.2,358,1.2,1.2,4.4,20,19,21 2025-12-18,-4.0,-11.0,-6.0,3.4,30,0.38,9.9,5.2,345,1.5,1.5,4.0,20,19,21 2025-12-19,-6.0,-17.0,-11.0,3.4,30,0.60,42.7,15.1,11,1.4,0.8,4.2,20,19,21 2025-12-20,-10.0,-18.0,-14.0,3.4,30,0.52,38.9,17.2,349,1.5,1.2,4.4,20,19,21 2025-12-21,-12.0,-16.0,-14.0,3.4,30,0.43,32.9,18.6,152,1.4,0.5,4.4,20,19,21 2025-12-22,0.0,-16.0,-10.0,3.4,30,0.37,21.5,12.9,167,1.4,1.2,4.4,20,19,21 2025-12-23,2.0,-12.0,-5.0,3.4,30,0.50,24.3,12.7,168,2.0,1.2,4.0,20,19,21 2025-12-24,-3.0,-15.0,-8.0,3.4,30,0.68,38.9,19.2,266,1.4,0.7,4.4,20,19,21 2025-12-25,-8.0,-19.0,-14.0,3.4,30,0.45,29.7,8.3,354,1.4,1.5,4.0,20,19,21 2025-12-26,-18.0,-35.0,-30.0,3.4,30,0.60,21.3,12.8,3,1.7,0.7,4.0,19,19,21 2025-12-27,-15.0,-32.0,-24.0,3.4,30,0.37,20.4,8.2,351,1.4,0.7,4.6,19,18,20 2025-12-28,-8.0,-21.0,-14.0,3.4,30,0.38,17.4,5.6,133,1.4,1.0,4.0,18,18,20 2025-12-29,-9.0,-16.0,-12.0,3.4,30,0.44,19.5,14.7,150,1.9,1.0,4.0,18,17,19 2025-12-30,-4.0,-13.0,-8.0,3.4,30,0.50,30.8,11.0,70,1.4,0.7,4.0,18,17,19 2025-12-31,-6.0,-20.0,-11.0,3.4,30,0.77,40.8,23.2,345,1.4,0.9,4.2,17,17,19 2026-01-01,-11.0,-18.0,-13.0,3.4,30,0.42,13.5,5.9,334,1.4,0.9,4.2,17,17,19 2026-01-02,-12.0,-20.0,-15.0,3.4,30,0.49,10.7,6.3,336,1.4,0.9,4.2,17,17,19 2026-01-03,-18.0,-22.0,-20.0,3.4,30,0.52,9.0,3.9,342,1.4,0.7,4.2,17,16,19 2026-01-04,-16.0,-27.0,-20.0,3.4,30,0.56,12.0,3.7,348,1.4,0.4,4.2,17,16,18 2026-01-05,-15.0,-29.0,-23.0,3.4,30,0.58,14.7,6.2,350,1.4,0.4,4.2,16,16,18 2026-01-06,-16.0,-41.0,-33.0,3.4,30,0.74,16.3,10.3,339,1.4,0.9,4.2,15,15,18 2026-01-07,-27.0,-36.0,-31.0,3.4,30,0.74,19.1,9.4,339,1.6,0.7,4.3,14,14,17 2026-01-08,-25.0,-29.0,-27.0,3.4,30,0.73,9.2,7.4,330,1.3,0.4,4.3,14,14,17 2026-01-09,-19.0,-30.0,-25.0,3.4,30,0.85,22.5,12.6,357,1.3,0.7,4.3,13,13,16 2026-01-10,-27.0,-34.0,-31.0,3.4,30,0.89,28.4,18.6,359,1.3,0.7,4.1,12,12,16 2026-01-11,-30.0,-39.0,-35.0,3.4,30,1.15,23.0,14.4,354,1.6,0.7,3.6,12,12,15 2026-01-12,-32.0,-39.0,-37.0,3.4,30,1.01,16.6,9.4,337,1.3,0.4,3.6,12,12,14 2026-01-13,-29.0,-38.0,-33.0,3.4,30,0.88,10.9,5.3,336,1.1,0.9,3.6,12,11,14 2026-01-14,-30.0,-37.0,-34.0,3.4,30,1.03,14.9,9.6,336,1.6,0.4,3.6,12,11,14 2026-01-15,-1.0,-31.0,-18.0,3.4,30,1.15,15.2,7.5,193,1.6,0.4,3.6,12,11,14 2026-01-16,10.0,-8.0,3.0,3.4,30,1.52,40.5,9.4,165,1.6,0.9,3.6,12,11,14 2026-01-17,18.0,-5.0,5.0,3.4,30,1.35,29.0,13.6,164,1.3,0.4,3.6,12,12,14 2026-01-18,22.0,9.0,14.0,3.4,30,2.26,27.4,10.8,176,1.3,0.4,3.6,13,13,15 2026-01-19,29.0,11.0,19.0,3.4,30,1.71,15.8,8.1,155,1.3,0.4,3.6,14,14,16 2026-01-20,29.0,16.0,22.0,3.4,30,1.90,17.3,8.0,157,1.3,0.7,3.6,15,15,16 2026-01-21,24.0,14.0,19.0,3.5,30,1.93,24.7,8.3,17,1.3,0.4,3.6,16,16,17