******************************************************
             *                                                    *
             *   ARIZONA METEOROLOGICAL NETWORK WEEKLY SUMMARY    *
             *                                                    *
             *                       TUCSON                       *
             *                        2008                        *
             *                                                    *
             ******************************************************


     DATE    AIR TEMP   REL HUM  SOIL TEMP  WIND   SOLAR RAIN  ETo  HEAT UNITS
                                   4"  20"  SPEED   RAD
             MX MN AV   MX MN AV   AV  AV  MX  AV                    55  50  45
    ------  --- -- --  --- -- --  --- ---  -- ----  ---  ----  ---- --- --- ---
    AUG  24  98 72 85   76 20 45   81  80  25  6.3  613  0.01  0.31  26  31  36

    AUG  25  89 72 79   90 40 68   80  80  15  3.4  220  0.00  0.09  25  30  35

    AUG  26  87 71 75   97 44 80   79  79  16  3.1  305  0.29  0.10  24  29  34

    AUG  27  90 69 76   96 41 75   80  78  17  3.1  506  0.01  0.19  24  29  34

    AUG  28  90 68 78   95 40 71   81  78  15  3.8  514  0.03  0.20  23  28  33

    AUG  29  95 70 82   93 24 55   82  79  19  4.9  557  0.00  0.26  25  30  35

    AUG  30  94 70 82   97 25 52   79  79  28  6.5  484  0.14  0.23  25  30  35

    ------  --- -- --  --- -- --  --- ---  -- ----  ---  ----  ---- --- --- ---
   AVERAGE   92 70 80   92 33 64   80  79      4.4  457
   TOTALS                                                0.48  1.38 172 207 242

                            ANNUAL & SEASONAL TOTALS
              ----------------------------------------------------
               HEAT UNITS^                CHILL INFORMATION^^
              -------------         ------------------------------
              86/55F = 3553         HOURS OF TEMP BELOW 45F = 1005 
              86/50F = 4494         HOURS OF TEMP BELOW 32F = 160 
              86/45F = 5525         HOURS OF TEMP ABOVE 68F = 586 

   ****************************************************************************
   *                          ABBREVIATIONS AND UNITS                         *
   *                                                                          *
   *   MX : MAXIMUM FOR DAY          AIR TEMP : AIR TEMPERATURE IN DEGREES F  *
   *   MN : MINIMUM FOR DAY          REL HUM : RELATIVE HUMIDITY IN %         *
   *   AV : AVERAGE FOR DAY          SOLAR RAD : SOLAR RADIATION IN LANGLEYS  *
   *   WIND SPEED : IN MILES/HOUR    SOIL TEMP : SOIL TEMPERATURE AT 4 AND 20 * 
   *                                             INCHES IN DEGREES F          *
   *   RAIN : RAINFALL IN INCHES     ETo : REFERENCE CROP EVAPOTRANSPIRATION  *
   *                                       IN INCHES                          *
   *                                                                          *
   *            ## or 999 : MISSING DATA                                      *
   *                   55 : TEMPERATURE LIMITS = 86/55F                       *
   *                   50 : TEMPERATURE LIMITS = 86/50F                       *
   *                   45 : TEMPERATURE LIMITS = 86/45F                       *
   *                   ^  : ACCUMULATED SINCE JAN 1                           *
   *                   ^^ : ACCUMULATED BETWEEN  NOV 1 AND MARCH 31           *
   ****************************************************************************