STATION:  CATALINA AIRPORT (KAVX), CA

CLIMATOLOGICAL SUMMARY.  Period of Record: Jun 2000 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        |  60.2  59.6  62.0  62.4  67.1  71.6  77.5  77.8  76.8  70.4  65.7  60.1 |   67.6
Avg Min Temp        |  49.1  48.7  49.3  49.1  52.8  55.8  59.9  61.2  60.1  55.4  53.5  49.2 |   53.7
Avg Temperature     |  54.7  54.1  55.7  55.7  59.9  63.7  68.7  69.5  68.5  62.9  59.6  54.6 |   60.6
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    85    81    88    92    96   101   100    95    99    96    87    80 |    101
                    |                                                                         |
    Date of Ext-Day |    31    04    12    27    17    21    22    10    01    01    06    01 |
               -Year|  2003  2001  2007  2004  2008  2008  2006  2002  2007  2008  2006  2008 |
                    |                                                                         |
    Extreme Min Temp|    39    38    37    42    45    49    50    53    51    49    37    39 |     37
                    |                                                                         |
    Date of Ext-Day |    29    13    11    09    01    09    05    04    25    30    05    13 |
               -Year|  2002  2001  2006  2001  2002  2007  2005  2001  2005  2000  2000  2001 |
                    |                                                                         |
Heating Degree Days |   331   319   307   298   204   110    35    25    48   147   197   326 |   2349
Cooling Degree Days |    11    12    17    21    44    64   148   163   137    55    37     5 |    713
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.3   0.9   1.3   1.6   1.9   3.2   1.0   0.0   0.0 |   10.1
    Max Temp >= 75  |   1.8   2.3   3.4   3.4   6.7   9.7  18.8  18.6  16.6  11.2   5.5   1.0 |   98.7
    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  |   0.0   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 <= 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  |  35.3  37.5  40.3  43.0  47.9  50.9  53.1  51.9  48.0  44.7  39.8  36.0 |   44.0
Avg Wet Bulb Temp   |  46.0  46.5  48.2  49.1  53.2  56.4  59.7  59.5  57.4  53.7  50.1  46.4 |   52.2
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.09 30.05 30.02 30.00 29.93 29.89 29.90 29.89 29.87 29.94 30.03 30.09 |  29.98
(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   0.4   0.3   0.1   0.0   0.0   0.1   0.1   0.1   0.3   0.3   0.3 |    2.1
    Heavy Fog       |   8.8  10.7  14.9  12.9  17.0  16.1  13.3  10.7   9.7  12.9   8.6  10.0 |  145.7
    Fog             |  12.3  13.9  17.9  19.1  20.0  19.3  15.9  13.7  12.8  16.9  11.3  12.8 |  186.0
    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     |  2.48  3.15  1.41  0.65  0.36  0.14  0.03  0.03  0.06  0.66  1.00  2.30 |  12.25
                    |                                                                         |
Maximum Daily       |  1.82  2.28  3.02  1.08  0.55  0.11  0.02  0.02  0.16  1.34  0.89  4.44 |   4.44
                    |                                                                         |
    Date of Ext-Day |    09    11    15    28    22    09    30    19    28    26    30    28 |
               -Year|  2005  2005  2003  2005  2006  2002  2003  2002  2002  2004  2007  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   7.8   9.5   7.8   7.9   8.5   7.2   2.5   2.3   2.7   6.0   7.0   9.8 |   79.0
    >= 0.10         |   3.9   4.9   2.4   1.1   0.5   0.1   0.0   0.0   0.1   1.4   2.2   3.7 |   20.4
    >= 0.25         |   2.6   3.4   1.4   0.8   0.4   0.0   0.0   0.0   0.0   0.8   1.3   1.9 |   12.6
    >= 0.50         |   1.8   2.4   0.5   0.4   0.1   0.0   0.0   0.0   0.0   0.4   0.8   1.2 |    7.6
    >= 1.00         |   0.8   1.0   0.4   0.1   0.0   0.0   0.0   0.0   0.0   0.1   0.0   0.4 |    2.8
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   8.0   8.6   8.4   8.4   6.7   5.5   5.0   5.3   6.3   6.7   7.1   7.9 |    7.0
Daily Avg Max 2-Min |  17.0  18.2  17.3  17.2  14.7  12.9  12.6  12.2  13.5  14.8  15.7  17.1 |   15.3
Daily Avg Peak Gust |  21.1  22.4  21.2  20.7  17.7  15.5  15.1  14.6  16.2  17.9  19.1  21.1 |   18.5
                    |                                                                         |
Maximum Daily Avg   |  21.0  23.5  22.6  23.0  15.8  14.4  10.9  11.5  16.8  21.2  20.1  22.7 |   23.5
                    |                                                                         |
Maximum 2-Minute Avg|    43    43    36    35    29    33    22    22    30    41    46    46 |     46
                    |                                                                         |
Date of Max 2min-Day|    27    21    16    08    09    06    22    27    21    21    24    28 |
               -Year|  2008  2005  2002  2005  2003  2007  2006  2005  2004  2007  2001  2004 |
                    |                                                                         |
Maximum Peak Gust   |    61    59    46    44    36    36    31    28    37    54    55    59 |     61
                    |                                                                         |
Date of Max Gust-Day|    26    13    16    08    04    06    22    27    21    21    24    28 |
               -Year|  2008  2001  2002  2005  2007  2007  2006  2005  2004  2007  2001  2004 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   4.5   6.4   5.5   3.6   1.0   0.2   0.1   0.0   0.7   2.3   2.9   5.6 |   32.9
   Peak Gust >=40   |   2.0   2.3   1.6   0.6   0.0   0.0   0.0   0.0   0.0   0.8   0.4   2.1 |    9.9
   Peak Gust >=50   |   0.9   0.5   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.1   0.6 |    2.2
                    |                                                                         |
   Max 2-Minute >=30|   2.1   2.4   2.4   1.4   0.0   0.1   0.0   0.0   0.1   0.7   0.9   0.0 |   10.1
   Max 2-Minute >=40|   0.6   0.3   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.1   0.0 |    1.1
                    |                                                                         |
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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.