STATION:  NOGALES INTERNATIONAL ARPT (KOLS), AZ

CLIMATOLOGICAL SUMMARY.  Period of Record: Aug 1999 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        |  64.1  66.1  71.3  78.7  88.1  95.6  92.7  89.8  89.6  81.5  72.7  64.2 |   79.5
Avg Min Temp        |  33.5  35.2  38.8  44.8  52.7  62.6  66.6  64.2  59.8  49.6  39.8  32.4 |   48.3
Avg Temperature     |  48.8  50.7  55.0  61.8  70.4  79.1  79.6  77.0  74.7  65.5  56.3  48.3 |   63.9
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    82    81    90    96   106   105   107   102   100    96    88    82 |    107
                    |                                                                         |
    Date of Ext-Day |    16    23    16    27    22    25    04    10    14    01    06    04 |
               -Year|  2000  2002  2007  2000  2005  2002  2007  2003  2000  2003  1999  2007 |
                    |                                                                         |
    Extreme Min Temp|    14    19    22    28    39    50    53    52    43    32    22    14 |     14
                    |                                                                         |
    Date of Ext-Day |    15    09    03    11    05    11    01    21    22    13    28    28 |
               -Year|  2007  2001  2002  2001  2001  2004  2004  2004  2004  2008  2001  2003 |
                    |                                                                         |
Heating Degree Days |   502   405   314   125    16     0     0     0     0    64   268   518 |   2211
Cooling Degree Days |     0     0     5    27   184   422   453   373   291    80     5     0 |   1841
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.1   0.7  13.5  25.7  21.1  16.9  16.7   4.1   0.0   0.0 |   98.8
    Max Temp >= 75  |   3.5   5.0  13.9  22.0  30.2  30.0  30.9  30.6  29.8  26.6  14.5   3.2 |  240.2
    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  |  14.6   9.5   5.6   0.4   0.0   0.0   0.0   0.0   0.0   0.1   4.2  16.2 |   50.6
    Min Temp <= 20  |   0.6   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.7 |    1.4
    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  |  23.7  23.5  23.5  23.3  27.3  37.1  56.1  60.2  50.9  37.6  26.7  22.5 |   34.4
Avg Wet Bulb Temp   |  37.8  39.2  41.6  45.1  50.2  56.8  64.4  65.6  60.4  50.9  42.6  36.9 |   49.3
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.04 29.99 29.93 29.88 29.82 29.80 29.87 29.89 29.85 29.91 29.99 30.05 |  29.92
(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   |   0.4   0.4   0.8   0.9   1.4   4.0  13.3  12.2   4.2   1.9   0.4   0.1 |   40.2
    Heavy Fog       |   0.8   0.6   0.2   0.0   0.0   0.1   0.4   0.2   0.2   0.4   0.2   0.8 |    3.9
    Fog             |   3.8   3.3   2.3   1.2   0.2   1.0   4.0   5.3   2.3   2.4   1.2   2.6 |   29.7
    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     |  0.49  0.59  0.60  0.38  0.14  0.60  4.61  3.69  1.21  0.96  0.51  0.54 |  14.31
                    |                                                                         |
Maximum Daily       |  0.51  0.65  0.83  0.88  0.50  1.20  2.12  1.56  1.30  1.82  0.89  0.67 |   2.12
                    |                                                                         |
    Date of Ext-Day |    27    15    06    05    29    30    14    05    07    11    30    11 |
               -Year|  2001  2008  2000  2001  2005  2000  2004  2004  2006  2000  2007  2001 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   4.1   4.5   3.2   1.8   1.1   3.1  15.3  15.1   6.8   4.4   2.8   3.5 |   65.8
    >= 0.10         |   1.9   2.1   1.7   0.8   0.4   1.6   9.1   8.4   2.7   2.0   1.2   1.7 |   33.5
    >= 0.25         |   0.7   0.8   1.1   0.4   0.1   0.6   4.9   4.9   1.7   1.3   1.0   0.7 |   18.2
    >= 0.50         |   0.1   0.1   0.2   0.2   0.1   0.4   2.7   2.3   0.7   0.5   0.1   0.2 |    7.8
    >= 1.00         |   0.0   0.0   0.0   0.0   0.0   0.1   1.2   0.7   0.2   0.2   0.0   0.0 |    2.4
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   5.1   6.0   6.5   7.4   7.0   6.9   5.3   4.4   5.3   5.5   4.9   5.2 |    5.8
Daily Avg Max 2-Min |  16.1  18.1  19.1  21.1  20.6  20.6  21.0  19.1  17.5  17.4  15.6  15.4 |   18.5
Daily Avg Peak Gust |  20.2  22.8  24.5  26.9  26.7  26.7  26.7  24.5  22.4  22.5  19.8  19.7 |   23.6
                    |                                                                         |
Maximum Daily Avg   |  14.7  19.3  19.6  18.1  21.1  17.1  10.9   7.6  14.6  17.1  15.3  16.0 |   21.1
                    |                                                                         |
Maximum 2-Minute Avg|    32    44    41    43    44    40    43    43    38    39    36    38 |     44
                    |                                                                         |
Date of Max 2min-Day|    25    04    22    10    09    21    18    18    09    24    09    10 |
               -Year|  2007  2005  2007  2006  2001  2006  2006  2002  1999  2006  2008  2001 |
                    |                                                                         |
Maximum Peak Gust   |    43    54    49    55    63    55    54    60    47    54    44    46 |     63
                    |                                                                         |
Date of Max Gust-Day|    12    04    22    10    09    19    18    18    30    24    09    01 |
               -Year|  2001  2005  2007  2006  2001  2001  2006  2002  2001  2006  2008  2007 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   2.8   5.0   6.0   8.7   9.5   8.2  10.2   7.8   3.8   4.8   2.2   3.8 |   72.8
   Peak Gust >=40   |   0.3   0.7   0.9   1.7   0.9   1.5   2.2   1.6   0.4   0.6   0.1   0.4 |   11.2
   Peak Gust >=50   |   0.0   0.1   0.0   0.1   0.2   0.1   0.1   0.4   0.0   0.1   0.0   0.0 |    1.2
                    |                                                                         |
   Max 2-Minute >=30|   0.6   1.1   1.3   3.2   1.3   2.2   2.7   2.0   0.6   0.8   0.3   0.0 |   16.3
   Max 2-Minute >=40|   0.0   0.2   0.1   0.1   0.2   0.2   0.3   0.3   0.0   0.0   0.0   0.0 |    1.5
                    |                                                                         |
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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.