STATION:  WINSLOW-LINDBERGH REGIONAL AIRPORT (KINW), AZ

CLIMATOLOGICAL SUMMARY.  Period of Record: Jul 1996 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        |  50.1  55.2  64.1  70.9  82.7  92.0  95.1  91.1  84.9  73.4  60.4  48.9 |   72.4
Avg Min Temp        |  21.5  24.3  30.2  36.5  46.0  53.9  63.0  61.6  52.9  39.2  27.9  20.1 |   39.7
Avg Temperature     |  35.8  39.7  47.2  53.7  64.3  73.0  79.0  76.3  68.9  56.3  44.1  34.5 |   56.1
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    72    74    84    91   101   104   106   102    96    91    81    70 |    106
                    |                                                                         |
    Date of Ext-Day |    24    27    20    27    31    15    04    14    01    01    08    01 |
               -Year|  1999  2000  2004  2000  2002  2000  2007  1996  1996  2003  2006  2005 |
                    |                                                                         |
    Extreme Min Temp|     1     1    -2    18    25    37    44    47    36    18     4     0 |     -2
                    |                                                                         |
    Date of Ext-Day |    18    09    03    13    02    14    01    25    25    22    30    28 |
               -Year|  2001  2003  2002  1997  2008  2001  1997  2002  2000  1996  2006  2002 |
                    |                                                                         |
Heating Degree Days |   906   715   553   342    96     9     0     0    27   281   626   946 |   4500
Cooling Degree Days |     0     0     0     2    75   248   435   351   144    11     0     0 |   1266
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.1   6.3  21.3  26.4  19.1   7.6   0.2   0.0   0.0 |   81.0
    Max Temp >= 75  |   0.0   0.0   4.6  12.3  26.4  29.5  31.0  31.0  27.5  15.1   1.2   0.0 |  178.6
    Max Temp <= 32  |   1.2   0.2   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   1.1 |    2.5
                    |                                                                         |
    Min Temp <= 32  |  27.7  23.2  18.7   8.4   0.5   0.0   0.0   0.0   0.0   7.1  22.2  28.7 |  136.6
    Min Temp <= 20  |  13.7   9.0   3.1   0.3   0.0   0.0   0.0   0.0   0.0   0.3   5.6  16.9 |   48.9
    Min Temp  <= 0  |   0.0   0.0   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.2 |    0.2
                    |                                                                         |
Avg Dew Point Temp  |  19.7  18.7  20.1  21.5  25.5  28.9  45.5  50.3  40.9  28.8  20.9  17.5 |   28.2
Avg Wet Bulb Temp   |  29.1  31.4  36.1  40.2  46.6  51.6  59.8  60.5  53.7  43.2  34.1  27.6 |   42.8
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.16 30.09 30.00 29.93 29.86 29.84 29.88 29.92 29.92 30.00 30.11 30.18 |  29.99
(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   |   0.0   0.1   0.1   0.1   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0 |    0.8
    Heavy Fog       |   0.8   0.5   0.4   0.2   0.0   0.0   0.1   0.0   0.3   0.2   0.1   1.1 |    3.7
    Fog             |   4.9   3.2   2.9   1.8   0.5   0.2   1.2   1.3   2.9   1.5   1.4   4.3 |   26.2
    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     |  0.45  0.43  0.47  0.32  0.22  0.13  0.76  0.82  1.02  0.42  0.34  0.40 |   5.78
                    |                                                                         |
Maximum Daily       |  0.65  0.52  0.47  0.50  0.35  0.23  1.04  0.58  1.09  0.46  0.51  0.52 |   1.09
                    |                                                                         |
    Date of Ext-Day |    03    15    23    02    19    17    22    16    14    28    12    29 |
               -Year|  2005  2008  2007  1999  2001  1999  1998  2005  1999  2004  2003  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   5.2   5.0   5.1   4.7   3.7   1.8   5.3   7.6   5.2   4.1   4.2   4.9 |   56.7
    >= 0.10         |   1.6   1.4   1.6   1.0   0.7   0.6   2.2   2.6   2.2   1.5   1.2   1.1 |   17.6
    >= 0.25         |   0.4   0.4   0.7   0.5   0.2   0.0   0.9   1.0   1.6   0.6   0.4   0.5 |    7.4
    >= 0.50         |   0.1   0.1   0.0   0.1   0.0   0.0   0.4   0.2   0.5   0.0   0.1   0.1 |    1.6
    >= 1.00         |   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0   0.1   0.0   0.0   0.0 |    0.2
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   6.4   7.6   8.6  10.7   9.9   9.9   8.3   7.4   7.4   7.2   6.3   6.4 |    8.0
Daily Avg Max 2-Min |  16.5  19.7  21.9  26.4  24.9  25.3  26.0  23.7  21.2  18.6  16.3  16.5 |   21.4
Daily Avg Peak Gust |  19.7  24.0  27.1  32.7  31.5  32.4  32.0  29.0  26.5  23.0  19.8  19.9 |   26.5
                    |                                                                         |
Maximum Daily Avg   |  23.8  24.0  29.0  25.2  23.5  23.8  14.1  14.8  19.2  29.4  23.8  29.3 |   29.4
                    |                                                                         |
Maximum 2-Minute Avg|    46    56    61    54    47    45    40    45    45    60    40    47 |     61
                    |                                                                         |
Date of Max 2min-Day|    28    15    31    09    04    06    22    28    13    11    26    13 |
               -Year|  2008  2006  1999  1997  2007  2003  1998  2002  2001  2008  1997  2008 |
                    |                                                                         |
Maximum Peak Gust   |    54    68    72    66    56    58    51    56    59    75    53    60 |     75
                    |                                                                         |
Date of Max Gust-Day|    28    15    31    19    04    07    19    15    13    11    25    13 |
               -Year|  2008  2006  1999  2001  2007  2006  1998  2004  1996  2008  2001  2008 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   5.8   8.2  12.4  17.7  18.5  19.7  20.2  13.8  11.0   7.3   5.1   5.4 |  145.0
   Peak Gust >=40   |   1.3   2.4   2.9   7.8   5.0   4.5   4.4   2.7   2.6   2.4   1.3   2.2 |   39.7
   Peak Gust >=50   |   0.4   0.6   1.2   1.9   0.7   0.8   0.2   0.2   0.5   0.5   0.2   0.8 |    7.8
                    |                                                                         |
   Max 2-Minute >=30|   2.7   3.9   5.1  10.7   7.6   7.1   8.7   5.5   4.4   3.7   2.9   0.0 |   62.2
   Max 2-Minute >=40|   0.3   0.6   1.3   2.4   0.8   0.8   0.2   0.3   0.5   0.5   0.3   0.0 |    8.1
                    |                                                                         |
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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.