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Climatological and Gamma Radiation Summary

                                    M O N T H L Y  C L I M A T O L O G I C A L  S U M M A R Y


STATION:   Amargosa Valley CEMP
STATE:     Nevada
ELEVATION: 2424

Period of Record: Oct 1999 to Dec 2008

Based on unedited daily data.  Errors may be present.



              ||----------------------------AIR TEMPERATURE (F)--------------------------||-RELATIVE HUMIDITY--||
              ||                    |           |---------Average Number of Days---------||     (PERCENT)      ||
              ||   Avg   Avg        |-Extremes--|      Max Temp      |      Min Temp     ||   Avg   Avg        ||
          Mon ||   Max   Min   Avg  |  Hi   Lo  |  >=90  >=75  <=32  |  <=32  <=20   <=0 ||   Max   Min   Avg  ||
              ||                    |           |                    |                   ||                    ||
          Jan ||  60.1  33.1  45.6  |  81   12  |   0.0   0.7   0.0  |  14.7   1.1   0.0 ||  66.5  23.9  44.2  ||
          Feb ||  62.8  36.5  49.2  |  80   20  |   0.0   1.9   0.0  |   7.1   0.2   0.0 ||  68.8  24.2  45.3  ||
          Mar ||  71.0  42.2  56.8  |  92   25  |   0.3  12.4   0.0  |   2.1   0.0   0.0 ||  57.9  15.9  33.9  ||
          Apr ||  77.4  47.9  63.4  |  98   31  |   2.9  19.0   0.0  |   0.2   0.0   0.0 ||  51.1  12.9  28.1  ||
          May ||  89.3  58.2  75.2  | 108   40  |  16.6  28.3   0.0  |   0.0   0.0   0.0 ||  35.5   9.3  19.3  ||
          Jun ||  98.4  66.5  84.2  | 110   49  |  26.8  29.9   0.0  |   0.0   0.0   0.0 ||  26.2   7.0  14.2  ||
          Jul || 104.3  74.1  90.4  | 114   61  |  30.9  31.0   0.0  |   0.0   0.0   0.0 ||  32.3   9.0  18.0  ||
          Aug || 101.4  71.7  87.4  | 112   56  |  30.3  31.0   0.0  |   0.0   0.0   0.0 ||  35.1  10.2  20.0  ||
          Sep ||  93.8  62.3  78.4  | 107   47  |  22.4  29.6   0.0  |   0.0   0.0   0.0 ||  36.3   9.7  20.6  ||
          Oct ||  81.5  51.4  66.1  |  99   36  |   6.4  24.5   0.0  |   0.0   0.0   0.0 ||  45.8  14.6  28.1  ||
          Nov ||  69.0  40.2  53.7  |  87   21  |   0.0   8.0   0.0  |   4.1   0.0   0.0 ||  55.9  18.0  35.6  ||
          Dec ||  59.0  32.2  44.5  |  75   18  |   0.0   0.3   0.0  |  16.8   0.5   0.0 ||  65.6  23.2  43.7  ||
              ||                    |           |                    |                   ||                    ||
              ---------------------------------------------------------------------------------------------------
              ||                    |           |                    |                   ||                    ||
         Year ||  80.7  51.4  66.2  | 114   12  | 136.7 216.5   0.0  |  45.0   1.8   0.0 ||  48.1  14.8  29.3  ||




                           ||---------------------PRECIPITATION (Inches)-------------------||
                           ||         |-----Extremes------|                                ||
                           ||   Avg   |    Max      Max   |-----Average Number of Days-----||
                           || Monthly | 10-Minute  Daily  |          Precipitation         ||
                       Mon ||   PPT   |    PPT      PPT   | >=.01 >=.10 >=.25 >=.50 >=1.0  ||
                           ||         |                   |                                ||
                       Jan ||   0.48  |    0.08     0.70  |   3.1   1.4   0.7   0.2   0.0  ||
                       Feb ||   0.97  |    0.14     1.74  |   4.9   2.3   1.4   0.3   0.2  ||
                       Mar ||   0.29  |    0.06     0.57  |   1.8   0.9   0.4   0.2   0.0  ||
                       Apr ||   0.19  |    0.06     0.75  |   2.1   0.3   0.1   0.1   0.0  ||
                       May ||   0.04  |    0.11     0.32  |   0.3   0.1   0.1   0.0   0.0  ||
                       Jun ||   0.02  |    0.03     0.05  |   0.6   0.0   0.0   0.0   0.0  ||
                       Jul ||   0.27  |    0.26     0.85  |   1.2   0.6   0.3   0.2   0.0  ||
                       Aug ||   0.20  |    0.37     0.64  |   1.2   0.3   0.3   0.2   0.0  ||
                       Sep ||   0.52  |    0.12     2.37  |   1.3   0.8   0.4   0.3   0.1  ||
                       Oct ||   0.20  |    0.09     0.40  |   2.1   0.5   0.3   0.0   0.0  ||
                       Nov ||   0.32  |    0.07     0.89  |   1.4   0.7   0.4   0.1   0.0  ||
                       Dec ||   0.24  |    0.05     0.63  |   2.3   0.5   0.3   0.1   0.0  ||
                           ||         |                   |                                ||
                           ------------------------------------------------------------------
                           ||         |                   |                                ||
                      Year ||   3.74  |    0.37     2.37  |  22.4   8.5   4.9   1.9   0.3  ||



                ||-------------------WIND SPEED (MPH)----------------||--BAROMETRIC PRESSURE--||--SOIL TEMP--||
                ||         Max   |  Avg         |-Avg Number of Days-||-Station Pressure (In)-|| 4" Depth (F)||
                ||        Daily  | Daily   Peak |     Peak Gust      ||       |----Extremes---||     Avg     ||
            Mon ||   Avg   Avg   | Pk Gst  Gust |  >=30  >=40  >=50  ||  Avg  |  Max     Min  ||             ||
                ||               |              |                    ||       |               ||             ||
            Jan ||   4.4   18.8  |  17.5    43  |   3.1   0.1   0.0  || 27.55 | 28.02   27.00 ||    51.1     ||
            Feb ||   5.1   16.6  |  19.5    42  |   3.3   0.6   0.0  || 27.48 | 28.11   26.93 ||    54.8     ||
            Mar ||   5.4   18.1  |  20.8    42  |   3.6   0.3   0.0  || 27.44 | 27.92   26.86 ||    62.7     ||
            Apr ||   7.2   20.4  |  25.1    58  |   9.1   1.0   0.1  || 27.37 | 27.83   26.83 ||    69.7     ||
            May ||   6.5   19.1  |  23.8    52  |   5.4   0.7   0.1  || 27.34 | 27.70   26.84 ||    80.1     ||
            Jun ||   6.9   22.3  |  24.3    50  |   5.8   0.8   0.1  || 27.32 | 27.60   26.93 ||    89.4     ||
            Jul ||   7.1   14.8  |  25.7    46  |   7.9   0.3   0.0  || 27.38 | 27.60   27.14 ||    96.3     ||
            Aug ||   6.8   15.4  |  24.2    38  |   5.7   0.0   0.0  || 27.38 | 27.63   26.61 ||    93.6     ||
            Sep ||   5.6   19.2  |  21.9    47  |   4.6   0.4   0.0  || 27.38 | 27.71   26.90 ||    86.3     ||
            Oct ||   4.8   17.9  |  18.6    42  |   2.5   0.2   0.0  || 27.43 | 28.01   26.88 ||    74.6     ||
            Nov ||   4.0   19.7  |  16.6    45  |   1.3   0.2   0.0  || 27.52 | 27.96   26.95 ||    62.2     ||
            Dec ||   4.0   16.9  |  16.5    42  |   2.5   0.2   0.0  || 27.55 | 28.05   26.85 ||    50.9     ||
                ||               |              |                    ||       |               ||             ||
           ----------------------------------------------------------------------------------------------------
                ||               |              |                    ||       |               ||             ||
           Year ||   5.6   22.3  |  21.2    58  |  54.7   4.8   0.3  || 27.43 | 28.11   26.61 ||    72.7     ||




                                           ||----GAMMA RADIATION (microR/Hr-----||
                                           ||   Avg   Avg        |---Extremes---||
                                       Mon ||   Max   Min   Avg  |   Max   Min  ||
                                           ||                    |              ||
                                       Jan ||  12.5  11.8  12.1  |  15.5   9.4  ||
                                       Feb ||  12.6  11.7  12.0  |  16.8   8.3  ||
                                       Mar ||  12.5  11.7  12.1  |  22.7   9.2  ||
                                       Apr ||  12.8  12.1  12.4  |  15.5   9.3  ||
                                       May ||  12.8  12.1  12.4  |  17.1  11.7  ||
                                       Jun ||  12.8  12.1  12.4  |  15.6  11.7  ||
                                       Jul ||  12.7  12.0  12.3  |  15.9  11.6  ||
                                       Aug ||  12.7  12.0  12.3  |  15.9  11.7  ||
                                       Sep ||  12.8  12.1  12.4  |  16.4  11.5  ||
                                       Oct ||  12.7  11.9  12.3  |  16.0   7.5  ||
                                       Nov ||  12.6  11.8  12.2  |  16.1   9.5  ||
                                       Dec ||  12.7  11.9  12.2  |  16.5   9.3  ||
                                           ||                    |              ||
                                           ---------------------------------------
                                           ||                    |              ||
                                      Year ||  12.7  11.9  12.3  |  22.7   7.5  ||