#------------------------------------------------- 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: Monthly # Date Range: Period of Record # Report Instantaneous Data As: End of Month # # Data for the following site(s) are contained in this file: # # RESERVOIR 09379900: Lake Powell, AZ # # Data items provided in this file: # # Element Name Value Type Function Type Function Duration Base Data Measurement Units Sensor Depth Element Code Description # Reservoir Storage Volume Value None Instantaneous - End of Month N/A Acre feet N/A RESC Reservoir storage volume # # 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 # #------------------------------------------------------------------------------------------------------ # # Lake Powell (09379900) Arizona RESERVOIR Site - 3700 ft # Reporting Frequency: Monthly; Date Range: Period of Record # # As of: Apr 29, 2024, 9:12:33 PM GMT-08:00 # Date,Reservoir Storage Volume (ac_ft) End of Month Values Jun 1963,7400 Jul 1963,49400 Aug 1963,246400 Sep 1963,536400 Oct 1963,644400 Nov 1963,829400 Dec 1963,969900 Jan 1964,1112200 Feb 1964,1118000 Mar 1964,1003500 Apr 1964,663700 May 1964,1738100 Jun 1964,3174100 Jul 1964,3730300 Aug 1964,4027400 Sep 1964,4097300 Oct 1964,4108300 Nov 1964,4086300 Dec 1964,4109600 Jan 1965,4083200 Feb 1965,4108000 Mar 1965,4106500 Apr 1965,4058200 May 1965,4103400 Jun 1965,5110900 Jul 1965,6312100 Aug 1965,6339400 Sep 1965,6261800 Oct 1965,6354000 Nov 1965,6417500 Dec 1965,6551400 Jan 1966,6589200 Feb 1966,6532400 Mar 1966,6688800 Apr 1966,6838100 May 1966,7218100 Jun 1966,7241600 Jul 1966,6907000 Aug 1966,6510000 Sep 1966,6219300 Oct 1966,6072600 Nov 1966,5854100 Dec 1966,5725900 Jan 1967,5485100 Feb 1967,5354800 Mar 1967,5202900 Apr 1967,4913300 May 1967,5011700 Jun 1967,6199200 Jul 1967,6414400 Aug 1967,6283300 Sep 1967,6157600 Oct 1967,6141200 Nov 1967,6146800 Dec 1967,6068100 Jan 1968,5944400 Feb 1968,6004700 Mar 1968,5666900 Apr 1968,5290100 May 1968,5772400 Jun 1968,7386200 Jul 1968,7323100 Aug 1968,7508300 Sep 1968,7270700 Oct 1968,7135100 Nov 1968,7017600 Dec 1968,6857000 Jan 1969,6919400 Feb 1969,7099200 Mar 1969,7152700 Apr 1969,7786800 May 1969,9241200 Jun 1969,9948400 Jul 1969,9999000 Aug 1969,9608700 Sep 1969,9391100 Oct 1969,9521800 Nov 1969,9464500 Dec 1969,9291500 Jan 1970,9069000 Feb 1970,9130300 Mar 1970,9222700 Apr 1970,8851600 May 1970,10135600 Jun 1970,11679700 Jul 1970,11846600 Aug 1970,11563200 Sep 1970,11654900 Oct 1970,11747100 Nov 1970,11847300 Dec 1970,11741200 Jan 1971,11837700 Feb 1971,12017700 Mar 1971,12037000 Apr 1971,12110700 May 1971,12614700 Jun 1971,13858900 Jul 1971,13859900 Aug 1971,13491900 Sep 1971,13174500 Oct 1971,13164100 Nov 1971,12986900 Dec 1971,12697500 Jan 1972,12528500 Feb 1972,12692400 Mar 1972,13019300 Apr 1972,12800000 May 1972,12935700 Jun 1972,13728800 Jul 1972,13295700 Aug 1972,12652900 Sep 1972,12088300 Oct 1972,12649800 Nov 1972,12691800 Dec 1972,12362300 Jan 1973,11860300 Feb 1973,11825700 Mar 1973,11582200 Apr 1973,10888100 May 1973,13408300 Jun 1973,15587800 Jul 1973,16496800 Aug 1973,16642000 Sep 1973,16735600 Oct 1973,16708800 Nov 1973,16836900 Dec 1973,17081800 Jan 1974,16866200 Feb 1974,17038400 Mar 1974,17367900 Apr 1974,17518600 May 1974,18805400 Jun 1974,19484400 Jul 1974,18847800 Aug 1974,17960700 Sep 1974,17441600 Oct 1974,17313800 Nov 1974,17158000 Dec 1974,17010700 Jan 1975,16705500 Feb 1975,16651900 Mar 1975,16744400 Apr 1975,16953800 May 1975,17932000 Jun 1975,19695800 Jul 1975,20521100 Aug 1975,20110000 Sep 1975,19580500 Oct 1975,19377300 Nov 1975,19456100 Dec 1975,19555700 Jan 1976,19404300 Feb 1976,19222800 Mar 1976,19124500 Apr 1976,19053300 May 1976,19539000 Jun 1976,20147200 Jul 1976,19900700 Aug 1976,19495100 Sep 1976,19030300 Oct 1976,18663600 Nov 1976,18225900 Dec 1976,17893800 Jan 1977,17446300 Feb 1977,17414800 Mar 1977,17373400 Apr 1977,17553100 May 1977,17760800 Jun 1977,17682000 Jul 1977,17143800 Aug 1977,16305400 Sep 1977,15624300 Oct 1977,15502700 Nov 1977,15384100 Dec 1977,14865800 Jan 1978,14309900 Feb 1978,14059800 Mar 1978,14057500 Apr 1978,14510200 May 1978,15498900 Jun 1978,17179200 Jul 1978,17509400 Aug 1978,16705500 Sep 1978,16030000 Oct 1978,15691000 Nov 1978,15551700 Dec 1978,15178900 Jan 1979,14729900 Feb 1979,14635500 Mar 1979,15430300 Apr 1979,16763500 May 1979,18996400 Jun 1979,21322700 Jul 1979,21900600 Aug 1979,21379600 Sep 1979,20988800 Oct 1979,20706000 Nov 1979,20333000 Dec 1979,20217600 Jan 1980,20266700 Feb 1980,20440100 Mar 1980,20621600 Apr 1980,20922100 May 1980,23022700 Jun 1980,24408500 Jul 1980,23754000 Aug 1980,22831500 Sep 1980,22419600 Oct 1980,22071500 Nov 1980,21675700 Dec 1980,21450400 Jan 1981,21200700 Feb 1981,20986400 Mar 1981,20937300 Apr 1981,20865400 May 1981,20938700 Jun 1981,21352000 Jul 1981,20942900 Aug 1981,20323300 Sep 1981,20115700 Oct 1981,20112800 Nov 1981,19937300 Dec 1981,19495600 Jan 1982,18993200 Feb 1982,18859900 Mar 1982,19021200 Apr 1982,19240200 May 1982,20485200 Jun 1982,21988100 Jul 1982,22353200 Aug 1982,22246000 Sep 1982,22341000 Oct 1982,22398400 Nov 1982,22188600 Dec 1982,21960800 Jan 1983,21749700 Feb 1983,21573800 Mar 1983,21942800 Apr 1983,22119200 May 1983,23544100 Jun 1983,25493000 Jul 1983,25546300 Aug 1983,25044400 Sep 1983,24143000 Oct 1983,23410600 Nov 1983,22728100 Dec 1983,22034900 Jan 1984,21338500 Feb 1984,20830400 Mar 1984,20414700 Apr 1984,20424500 May 1984,22424600 Jun 1984,24531700 Jul 1984,24672800 Aug 1984,24383100 Sep 1984,23673800 Oct 1984,23263200 Nov 1984,22632600 Dec 1984,21962500 Jan 1985,21333500 Feb 1985,20701000 Mar 1985,20750900 Apr 1985,21936900 May 1985,23621400 Jun 1985,24342300 Jul 1985,23864600 Aug 1985,22868100 Sep 1985,22096600 Oct 1985,22182100 Nov 1985,22218200 Dec 1985,22326700 Jan 1986,22085900 Feb 1986,21784600 Mar 1986,21359000 Apr 1986,21561400 May 1986,22010800 Jun 1986,23527900 Jul 1986,24277200 Aug 1986,23485400 Sep 1986,22695600 Oct 1986,22634400 Nov 1986,22457800 Dec 1986,21901500 Jan 1987,21124100 Feb 1987,20918900 Mar 1987,21174700 Apr 1987,21914600 May 1987,23461400 Jun 1987,24062200 Jul 1987,23700300 Aug 1987,23000800 Sep 1987,22440500 Oct 1987,22416200 Nov 1987,22361700 Dec 1987,22041100 Jan 1988,21704800 Feb 1988,21514500 Mar 1988,21505600 Apr 1988,21789100 May 1988,22449200 Jun 1988,23200000 Jul 1988,22903000 Aug 1988,22459700 Sep 1988,22087100 Oct 1988,21874951 Nov 1988,21565597 Dec 1988,21223122 Jan 1989,20765699 Feb 1989,20483744 Mar 1989,20482326 Apr 1989,20659984 May 1989,20945190 Jun 1989,20921271 Jul 1989,20339619 Aug 1989,19805292 Sep 1989,19183233 Oct 1989,18947699 Nov 1989,18668673 Dec 1989,18291767 Jan 1990,17922869 Feb 1990,17613525 Mar 1990,17344273 Apr 1990,17154802 May 1990,17065576 Jun 1990,17279285 Jul 1990,16883207 Aug 1990,16128570 Sep 1990,15722660 Oct 1990,15696996 Nov 1990,15563466 Dec 1990,15246237 Jan 1991,14932500 Feb 1991,14741149 Mar 1991,14602391 Apr 1991,14586921 May 1991,15112027 Jun 1991,15887665 Jul 1991,15488352 Aug 1991,14989915 Sep 1991,14698880 Oct 1991,14546049 Nov 1991,14474481 Dec 1991,14251493 Jan 1992,13897188 Feb 1992,13745243 Mar 1992,13698705 Apr 1992,13913188 May 1992,14934751 Jun 1992,15275925 Jul 1992,14913406 Aug 1992,14427250 Sep 1992,14084829 Oct 1992,13891849 Nov 1992,13703991 Dec 1992,13334385 Jan 1993,13104284 Feb 1993,12993802 Mar 1993,13412363 Apr 1993,14159317 May 1993,16804762 Jun 1993,19337327 Jul 1993,19526472 Aug 1993,19074333 Sep 1993,18824804 Oct 1993,18790311 Nov 1993,18693737 Dec 1993,18402435 Jan 1994,18122129 Feb 1994,17851241 Mar 1994,17784914 Apr 1994,17720033 May 1994,18627816 Jun 1994,19245283 Jul 1994,18724121 Aug 1994,18089882 Sep 1994,17772167 Oct 1994,17684480 Nov 1994,17516298 Dec 1994,17220702 Jan 1995,16842725 Feb 1995,16569855 Mar 1995,16626838 Apr 1995,16786431 May 1995,18350285 Jun 1995,21298870 Jul 1995,23307302 Aug 1995,22972229 Sep 1995,22311240 Oct 1995,21933068 Nov 1995,21680640 Dec 1995,21392359 Jan 1996,20946632 Feb 1996,20692796 Mar 1996,20220090 Apr 1996,20186442 May 1996,21389430 Jun 1996,22409548 Jul 1996,22219242 Aug 1996,21580303 Sep 1996,21154837 Oct 1996,20968236 Nov 1996,20894802 Dec 1996,20497895 Jan 1997,19991015 Feb 1997,19321047 Mar 1997,18917909 Apr 1997,19107890 May 1997,21089613 Jun 1997,23383798 Jul 1997,23293257 Aug 1997,22892093 Sep 1997,22801446 Oct 1997,22553819 Nov 1997,22123055 Dec 1997,21595052 Jan 1998,21102625 Feb 1998,20630028 Mar 1998,20273472 Apr 1998,20745648 May 1998,22645310 Jun 1998,23727909 Jul 1998,23565606 Aug 1998,22865953 Sep 1998,22403483 Oct 1998,22198187 Nov 1998,22076560 Dec 1998,21654053 Jan 1999,21344131 Feb 1999,21088164 Mar 1999,20916366 Apr 1999,20893363 May 1999,21561176 Jun 1999,23304180 Jul 1999,23377541 Aug 1999,23291697 Sep 1999,22996950 Oct 1999,22534054 Nov 1999,21968875 Dec 1999,21443640 Jan 2000,21137411 Feb 2000,20948074 Mar 2000,20818690 Apr 2000,20674225 May 2000,21044755 Jun 2000,21757615 Jul 2000,21568545 Aug 2000,21304711 Sep 2000,20939423 Oct 2000,20752807 Nov 2000,20301595 Dec 2000,19823235 Jan 2001,19327829 Feb 2001,19023430 Mar 2001,18864671 Apr 2001,18820818 May 2001,19797000 Jun 2001,20259405 Jul 2001,19763890 Aug 2001,19321047 Sep 2001,19134795 Oct 2001,18802257 Nov 2001,18510914 Dec 2001,17995952 Jan 2002,17507501 Feb 2002,17189596 Mar 2002,16927421 Apr 2002,16704682 May 2002,16535969 Jun 2002,16110750 Jul 2002,15333130 Aug 2002,14569225 Sep 2002,14467880 Oct 2002,14269970 Nov 2002,14110706 Dec 2002,13773841 Jan 2003,13269125 Feb 2003,12833247 Mar 2003,12443571 Apr 2003,12243413 May 2003,12756490 Jun 2003,13364505 Jul 2003,12793807 Aug 2003,12156322 Sep 2003,12109533 Oct 2003,11935147 Nov 2003,11795920 Dec 2003,11486774 Jan 2004,10984245 Feb 2004,10536874 Mar 2004,10179570 Apr 2004,10192620 May 2004,10566253 Jun 2004,10476457 Jul 2004,9913853 Aug 2004,9277886 Sep 2004,9169460 Oct 2004,9147553 Nov 2004,8889033 Dec 2004,8663616 Jan 2005,8481378 Feb 2005,8264678 Mar 2005,8015213 Apr 2005,8538478 May 2005,10509305 Jun 2005,12359502 Jul 2005,12417834 Aug 2005,12022139 Sep 2005,11939007 Oct 2005,12016321 Nov 2005,11976667 Dec 2005,11576323 Jan 2006,11205927 Feb 2006,10793364 Mar 2006,10704126 Apr 2006,11093352 May 2006,12258121 Jun 2006,12765572 Jul 2006,12415852 Aug 2006,12017290 Sep 2006,11916846 Oct 2006,12526054 Nov 2006,12415842 Dec 2006,12076466 Jan 2007,11703394 Feb 2007,11551778 Mar 2007,11636909 Apr 2007,11783493 May 2007,12691083 Jun 2007,12881880 Jul 2007,12465407 Aug 2007,12094938 Sep 2007,11929370 Oct 2007,11809316 Nov 2007,11619851 Dec 2007,11245782 Jan 2008,10880359 Feb 2008,10880359 Mar 2008,10799697 Apr 2008,11194825 May 2008,12812006 Jun 2008,14970763 Jul 2008,15191540 Aug 2008,14802503 Sep 2008,14508577 Oct 2008,14172307 Nov 2008,13965594 Dec 2008,13540898 Jan 2009,13154627 Feb 2009,12937756 Mar 2009,12773632 Apr 2009,12857547 May 2009,14751176 Jun 2009,16060989 Jul 2009,16138064 Aug 2009,15709825 Sep 2009,15462973 Oct 2009,15250803 Nov 2009,14976395 Dec 2009,14433841 Jan 2010,13991311 Feb 2010,13780191 Mar 2010,13700829 Apr 2010,13816275 May 2010,14405339 Jun 2010,15864183 Jul 2010,15595908 Aug 2010,15368674 Sep 2010,15266787 Oct 2010,15314809 Nov 2010,14887584 Dec 2010,14468976 Jan 2011,13821588 Feb 2011,13235015 Mar 2011,12803921 Apr 2011,12925552 May 2011,14097762 Jun 2011,17089086 Jul 2011,18605441 Aug 2011,17889579 Sep 2011,17593301 Oct 2011,17249350 Nov 2011,16682755 Dec 2011,15973570 Jan 2012,15641172 Feb 2012,15452603 Mar 2012,15458364 Apr 2012,15507966 May 2012,15631880 Jun 2012,15294215 Jul 2012,14679979 Aug 2012,14150670 Sep 2012,13929222 Oct 2012,13706110 Nov 2012,13250511 Dec 2012,12712525 Jan 2013,12176834 Feb 2013,11890863 Mar 2013,11651135 Apr 2013,11422008 May 2013,11696734 Jun 2013,11756753 Jul 2013,11202228 Aug 2013,10787947 Sep 2013,10934043 Oct 2013,10900357 Nov 2013,10631470 Dec 2013,10323809 Jan 2014,9827727 Feb 2014,9563112 Mar 2014,9497289 Apr 2014,9731949 May 2014,10764472 Jun 2014,12648940 Jul 2014,12535019 Aug 2014,12314154 Sep 2014,12285625 Oct 2014,12289557 Nov 2014,11929370 Dec 2014,11536684 Jan 2015,11146783 Feb 2015,11023589 Mar 2015,10913095 Apr 2015,10836808 May 2015,11491480 Jun 2015,13089932 Jul 2015,12995833 Aug 2015,12636916 Sep 2015,12332870 Oct 2015,12375298 Nov 2015,12279728 Dec 2015,11826553 Jan 2016,11426694 Feb 2016,11224455 Mar 2016,11019009 Apr 2016,11013514 May 2016,12123170 Jun 2016,13764294 Jul 2016,13575516 Aug 2016,13090957 Sep 2016,12824140 Oct 2016,12678029 Nov 2016,12313170 Dec 2016,11796878 Jan 2017,11359338 Feb 2017,11217043 Mar 2017,11364007 Apr 2017,12149494 May 2017,13667058 Jun 2017,15407724 Jul 2017,15384745 Aug 2017,14951625 Sep 2017,14664438 Oct 2017,14529509 Nov 2017,14332082 Dec 2017,14067595 Jan 2018,13672331 Feb 2018,13345812 Mar 2018,12956078 Apr 2018,12668997 May 2018,12885938 Jun 2018,12728287 Jul 2018,12116351 Aug 2018,11477376 Sep 2018,11027712 Oct 2018,10862199 Nov 2018,10506637 Dec 2018,10098851 Jan 2019,9629238 Feb 2019,9260702 Mar 2019,9049012 Apr 2019,9197907 May 2019,10343141 Jun 2019,12914371 Jul 2019,13933497 Aug 2019,13610192 Sep 2019,13277399 Oct 2019,13033624 Nov 2019,12854508 Dec 2019,12603889 Jan 2020,12280710 Feb 2020,12011477 Mar 2020,11817933 Apr 2020,11685324 May 2020,12238501 Jun 2020,12792809 Jul 2020,12356539 Aug 2020,11723386 Sep 2020,11370546 Oct 2020,10976930 Nov 2020,10615367 Dec 2020,10130046 Jan 2021,9638469 Feb 2021,9225599 Mar 2021,8843790 Apr 2021,8504490 May 2021,8366443 Jun 2021,8327615 Jul 2021,7866268 Aug 2021,7510963 Sep 2021,7257712 Oct 2021,7180773 Nov 2021,7015587 Dec 2021,6713123 Jan 2022,6335175 Feb 2022,6048301 Mar 2022,5812418 Apr 2022,5790596 May 2022,6346048 Jun 2022,6878423 Jul 2022,6212161 Aug 2022,5937930 Sep 2022,5797422 Oct 2022,5832351 Nov 2022,5720325 Dec 2022,5530546 Jan 2023,5456139 Feb 2023,5319754 Mar 2023,5374969 Apr 2023,5544347 May 2023,7887843 Jun 2023,9574258 Jul 2023,9327824 Aug 2023,8878023 Sep 2023,8790352 Oct 2023,8723925 Nov 2023,8626255 Dec 2023,8440669 Jan 2024,8138093 Feb 2024,7935133 Mar 2024,7717482