STATION:  PRESCOTT-ERNEST A. LOVE FIELD ARPT (KPRC), AZ

CLIMATOLOGICAL SUMMARY.  Period of Record: Jul 1996 to Dec 2008

Summaries based on unedited daily ASOS data.  Errors may be present.

-----------------------------------------------------------------------------------------------

TEMPERATURE (F)     |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Avg Max Temp        |  52.6  54.9  62.0  66.9  78.6  87.1  90.4  87.3  82.5  72.4  61.8  52.3 |   70.7
Avg Min Temp        |  25.9  27.8  32.9  37.8  47.2  55.1  62.4  60.8  53.3  42.5  32.1  24.9 |   41.9
Avg Temperature     |  39.2  41.4  47.4  52.4  62.9  71.1  76.4  74.1  67.9  57.4  47.0  38.6 |   56.3
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    71    72    83    87    96    98   104   102    95    90    79    80 |    104
                    |                                                                         |
    Date of Ext-Day |    31    28    17    28    27    28    04    14    01    01    07    08 |
               -Year|  2003  1999  2007  2007  2003  1998  2007  1996  2007  2000  2006  2006 |
                    |                                                                         |
    Extreme Min Temp|     6    10    11    22    31    39    36    49    37    24     9     9 |      6
                    |                                                                         |
    Date of Ext-Day |    14    01    03    10    10    14    03    25    25    12    30    25 |
               -Year|  2007  2002  2002  1999  2003  2001  2002  2002  2000  2008  2006  1997 |
                    |                                                                         |
Heating Degree Days |   799   667   545   379   119    17     0     1    26   242   541   819 |   4156
Cooling Degree Days |     0     0     0     1    55   200   355   282   114     7     0     0 |   1013
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.0   2.4  13.1  18.7  11.2   2.8   0.1   0.0   0.0 |   48.2
    Max Temp >= 75  |   0.0   0.0   2.5   6.9  21.8  28.7  30.7  30.2  27.0  14.9   2.0   0.1 |  164.7
    Max Temp <= 32  |   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.2 |    0.2
                    |                                                                         |
    Min Temp <= 32  |  26.9  23.0  15.2   5.5   0.2   0.0   0.0   0.0   0.0   2.1  16.6  27.0 |  116.5
    Min Temp <= 20  |   6.5   3.8   1.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   1.6   7.9 |   21.1
    Min Temp  <= 0  |   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.0
                    |                                                                         |
Avg Dew Point Temp  |  20.6  20.4  22.7  23.2  26.3  31.0  47.1  51.6  41.0  31.4  23.0  18.7 |   29.8
Avg Wet Bulb Temp   |  31.5  33.3  36.9  40.3  46.4  51.9  59.5  60.3  53.6  44.9  36.1  30.3 |   43.7
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
Avg Sea Level Pres  | 30.09 30.02 29.95 29.91 29.83 29.82 29.89 29.91 29.89 29.95 30.05 30.10 |  29.95
(Inches of Mercury) |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WEATHER             |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
See disclaimer below|                                                                         |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Thunderstorms   |   0.1   0.5   0.7   1.7   1.0   2.0   9.5  10.0   4.0   2.0   0.4   0.1 |   32.1
    Heavy Fog       |   0.9   1.2   1.1   0.8   0.0   0.0   0.1   0.2   0.2   0.5   0.6   0.6 |    6.1
    Fog             |   3.3   4.5   4.3   2.5   0.0   0.3   1.6   2.9   1.9   2.9   2.0   2.5 |   28.8
    Hail            |   0.0   0.1   0.0   0.0   0.0   0.0   0.0   0.3   0.2   0.1   0.0   0.0 |    0.8
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  1.08  1.20  0.69  0.58  0.36  0.49  1.64  2.04  1.29  0.96  0.70  0.78 |  11.81
                    |                                                                         |
Maximum Daily       |  1.13  0.95  0.82  0.80  1.03  1.76  1.20  2.00  1.65  1.27  1.30  1.14 |   2.00
                    |                                                                         |
    Date of Ext-Day |    27    27    23    05    19    23    24    14    14    21    12    29 |
               -Year|  2008  1997  2007  2004  1997  2005  1998  2003  1999  2004  2003  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   5.3   6.1   5.2   4.2   2.2   1.7   9.2   9.2   5.6   3.8   3.8   4.6 |   61.0
    >= 0.10         |   2.7   3.4   2.3   1.8   0.8   0.7   4.2   4.7   2.5   1.9   1.7   1.8 |   28.5
    >= 0.25         |   1.7   1.3   0.7   0.8   0.3   0.5   2.3   2.2   1.5   1.0   0.8   1.2 |   14.4
    >= 0.50         |   0.7   0.7   0.3   0.2   0.2   0.3   1.0   0.9   0.8   0.5   0.4   0.5 |    6.4
    >= 1.00         |   0.1   0.0   0.0   0.0   0.1   0.2   0.2   0.4   0.3   0.4   0.1   0.1 |    1.8
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   6.1   6.7   7.7   8.8   8.5   8.6   7.0   6.3   6.7   6.6   5.9   6.0 |    7.1
Daily Avg Max 2-Min |  15.5  17.2  19.4  21.6  21.0  21.6  21.4  19.3  18.2  16.8  15.4  15.6 |   18.6
Daily Avg Peak Gust |  18.9  21.4  24.3  27.7  27.4  28.2  27.1  24.6  23.5  21.5  19.0  18.8 |   23.5
                    |                                                                         |
Maximum Daily Avg   |  20.1  16.9  17.5  17.3  16.7  15.4  12.2  12.0  16.3  16.4  17.4  19.4 |   20.1
                    |                                                                         |
Maximum 2-Minute Avg|    40    39    37    45    40    53    51    41    36    31    39    41 |     53
                    |                                                                         |
Date of Max 2min-Day|    11    15    31    18    03    23    03    12    14    06    30    26 |
               -Year|  2005  2006  1999  2007  1999  2004  2002  2004  1999  2006  2007  2008 |
                    |                                                                         |
Maximum Peak Gust   |    52    49    48    56    51    54    61    49    47    45    51    53 |     61
                    |                                                                         |
Date of Max Gust-Day|    11    15    31    18    21    25    03    12    22    03    30    26 |
               -Year|  2005  2006  1999  2007  2008  2006  2002  2004  2007  2000  2007  2008 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   2.3   3.1   7.5  11.9  10.2  10.7   9.6   5.9   5.8   4.0   2.2   3.3 |   76.7
   Peak Gust >=40   |   0.7   0.6   0.9   1.6   1.4   1.5   0.9   1.1   0.9   0.5   0.3   0.8 |   11.2
   Peak Gust >=50   |   0.1   0.0   0.0   0.1   0.1   0.2   0.1   0.0   0.0   0.0   0.1   0.3 |    1.0
                    |                                                                         |
   Max 2-Minute >=30|   1.1   1.1   1.7   2.7   2.0   1.6   1.8   1.3   0.9   0.6   0.5   0.0 |   15.4
   Max 2-Minute >=40|   0.1   0.0   0.0   0.1   0.1   0.2   0.1   0.1   0.0   0.0   0.0   0.0 |    0.7
                    |                                                                         |
------------------------------------------------------------------------------------------------------

Observations of WEATHER may me innacurate due to early ASOS inconsistancies.  Average days
with Thunderstorms may be low due to early mis-detection.

Heavy Fog = Visibility less than or equal to 1/4 mile.
Fog = Visibility greater than 1/4 mile or less than 7 miles.
Peak Gust = Maximum 5-second average.
Snowfall data not observed at ASOS stations.

Copyright ©2009 Western Regional Climate Center - Desert Research Institute - Reno, Nevada.