STATION:  SCOTTSDALE AIRPORT (KSDL), AZ

CLIMATOLOGICAL SUMMARY.  Period of Record: Nov 2001 to Dec 2008

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

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TEMPERATURE (F)     |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Avg Max Temp        |  66.1  67.9  75.5  82.6  92.6 102.8 104.6 101.8  97.7  86.6  75.2  64.0 |   84.8
Avg Min Temp        |  43.4  45.6  51.3  57.7  66.7  75.9  82.3  80.8  74.7  62.8  51.6  41.6 |   61.2
Avg Temperature     |  54.7  56.8  63.4  70.2  79.6  89.3  93.5  91.3  86.2  74.7  63.4  52.8 |   73.0
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    83    84    97    99   108   113   116   113   108   102    92    79 |    116
                    |                                                                         |
    Date of Ext-Day |    31    08    16    28    28    20    21    10    01    01    04    05 |
               -Year|  2003  2006  2007  2007  2003  2008  2006  2003  2007  2003  2001  2003 |
                    |                                                                         |
    Extreme Min Temp|    25    30    33    42    51    63    70    68    59    49    32    28 |     25
                    |                                                                         |
    Date of Ext-Day |    14    01    03    06    23    08    01    24    21    28    30    29 |
               -Year|  2007  2002  2002  2003  2008  2007  2004  2002  2004  2002  2004  2003 |
                    |                                                                         |
Heating Degree Days |   320   234   121    17     1     0     0     0     0     8   105   378 |   1184
Cooling Degree Days |     1     2    71   172   455   730   882   814   635   308    56     0 |   4126
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   1.7   5.3  21.7  29.3  31.0  30.1  27.4  14.1   1.0   0.0 |  161.6
    Max Temp >= 75  |   5.1   5.9  16.7  25.9  30.6  30.0  31.0  31.0  30.0  29.1  16.9   2.5 |  254.7
    Max Temp <= 32  |   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
                    |                                                                         |
    Min Temp <= 32  |   0.9   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.2   1.6 |    2.9
    Min Temp <= 20  |   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
    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  |  31.2  31.3  31.6  30.2  32.6  36.3  54.6  57.6  48.6  40.0  33.7  31.0 |   38.2
Avg Wet Bulb Temp   |  44.3  45.6  48.9  51.6  56.2  61.0  69.3  69.7  63.8  56.2  49.4  43.1 |   54.9
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.06 30.00 29.93 29.86 29.79 29.74 29.78 29.79 29.79 29.87 29.98 30.06 |  29.89
(Inches of Mercury) |                                                                         |
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                    |                                                                         |
WEATHER             |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
See disclaimer below|                                                                         |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Thunderstorms   |   1.0   1.6   1.6   1.0   0.4   1.1   6.3   6.1   4.1   1.7   0.4   0.1 |   25.5
    Heavy Fog       |   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0   0.0   0.0   0.0 |    0.1
    Fog             |   2.6   3.3   1.9   0.9   0.0   0.0   0.7   0.9   0.3   0.7   1.2   2.9 |   15.3
    Hail            |   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
                    |                                                                         |
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                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  1.14  1.45  0.82  0.42  0.05  0.00  0.61  0.76  0.41  0.39  0.65  0.96 |   7.66
                    |                                                                         |
Maximum Daily       |  1.64  1.66  1.49  1.71  0.12  0.00  0.63  1.15  0.60  0.53  1.96  1.26 |   1.96
                    |                                                                         |
    Date of Ext-Day |    27    13    11    02    23          25    24    07    28    30    29 |
               -Year|  2008  2003  2006  2004  2008        2006  2006  2006  2004  2007  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   4.4   5.4   3.9   1.6   0.7   0.0   3.1   3.0   2.6   2.4   2.4   4.5 |   34.0
    >= 0.10         |   2.3   2.7   1.4   0.9   0.3   0.0   2.3   1.4   1.3   1.1   1.1   2.9 |   17.7
    >= 0.25         |   1.4   1.6   1.0   0.3   0.0   0.0   0.9   1.3   0.6   0.7   0.8   1.2 |    9.7
    >= 0.50         |   0.6   1.0   0.7   0.1   0.0   0.0   0.4   0.6   0.1   0.3   0.4   0.4 |    4.6
    >= 1.00         |   0.3   0.3   0.1   0.1   0.0   0.0   0.0   0.3   0.0   0.0   0.1   0.1 |    1.4
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   2.9   3.2   4.1   4.7   4.5   4.6   5.0   4.4   4.0   3.4   2.9   2.5 |    3.8
Daily Avg Max 2-Min |  11.9  12.6  14.1  15.6  15.1  15.6  18.2  16.4  15.0  12.8  11.2  10.4 |   14.1
Daily Avg Peak Gust |  15.8  16.7  19.1  20.8  20.0  20.9  23.9  21.6  19.8  17.0  15.0  13.8 |   18.7
                    |                                                                         |
Maximum Daily Avg   |  15.3  11.4  11.0  11.5  11.3  11.9   8.5   8.5   9.1  13.1  10.7  14.2 |   15.3
                    |                                                                         |
Maximum 2-Minute Avg|    35    38    30    35    36    51    49    39    40    36    32    31 |     51
                    |                                                                         |
Date of Max 2min-Day|    10    10    03    14    17    25    21    02    02    25    05    16 |
               -Year|  2002  2002  2008  2006  2006  2006  2006  2005  2006  2003  2001  2004 |
                    |                                                                         |
Maximum Peak Gust   |    43    43    45    43    44    66    61    48    56    44    43    39 |     66
                    |                                                                         |
Date of Max Gust-Day|    04    10    31    28    17    25    21    02    05    25    05    16 |
               -Year|  2005  2002  2005  2007  2006  2006  2006  2005  2002  2003  2001  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   1.6   1.3   2.3   3.2   1.6   1.6   6.0   4.9   3.6   1.3   0.4   1.0 |   28.8
   Peak Gust >=40   |   0.1   0.1   0.1   0.6   0.1   0.4   3.0   0.9   0.9   0.1   0.1   0.0 |    6.6
   Peak Gust >=50   |   0.0   0.0   0.0   0.0   0.0   0.1   0.6   0.0   0.1   0.0   0.0   0.0 |    0.9
                    |                                                                         |
   Max 2-Minute >=30|   0.4   0.1   0.1   0.7   0.3   0.4   3.1   1.6   0.9   0.6   0.1   0.0 |    8.5
   Max 2-Minute >=40|   0.0   0.0   0.0   0.0   0.0   0.3   0.4   0.0   0.1   0.0   0.0   0.0 |    0.9
                    |                                                                         |
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Observations of WEATHER may me innacurate due to early ASOS inconsistancies.  Average days
with Thunderstorms may be low due to poor 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.