STATION:  MONTEREY PENINSULA AIRPORT (KMRY), CA

CLIMATOLOGICAL SUMMARY.  Period of Record: Mar 1998 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        |  59.3  60.3  60.6  61.4  63.9  66.5  67.2  68.2  69.2  67.3  63.6  60.2 |   64.0
Avg Min Temp        |  42.4  44.4  45.5  46.8  49.8  52.2  54.1  54.7  53.5  50.1  46.3  42.6 |   48.5
Avg Temperature     |  50.8  52.3  53.0  54.1  56.9  59.3  60.7  61.4  61.4  58.7  55.0  51.4 |   56.2
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    75    79    81    92    95    97    86    87    93    89    88    75 |     97
                    |                                                                         |
    Date of Ext-Day |    02    09    08    26    16    14    22    09    05    25    15    20 |
               -Year|  2001  2006  2004  2004  2008  2000  2006  2002  2004  2003  2008  1999 |
                    |                                                                         |
    Extreme Min Temp|    25    33    36    34    40    45    47    47    43    40    33    26 |     25
                    |                                                                         |
    Date of Ext-Day |    13    11    10    10    13    16    23    11    26    31    23    24 |
               -Year|  2007  1999  1999  2008  2000  2002  2002  2008  2004  2002  2003  1998 |
                    |                                                                         |
Heating Degree Days |   440   358   371   331   256   176   139   117   122   206   303   422 |   3241
Cooling Degree Days |     0     0     0     3     4     6     5     6    13    10     3     0 |     50
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.0   0.0   0.0   0.1   0.3   0.4   0.0   0.0   0.3   0.0   0.0   0.0 |    1.0
    Max Temp >= 75  |   0.4   0.7   1.0   1.0   1.5   2.3   2.2   2.0   4.5   4.8   1.6   0.3 |   22.3
    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  |   0.7   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.7 |    1.4
    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  |  42.1  43.9  44.4  44.6  48.1  50.5  53.1  53.7  52.2  48.1  45.5  41.5 |   47.3
Avg Wet Bulb Temp   |  46.5  48.1  48.6  49.1  51.9  54.0  55.8  56.3  55.9  52.7  50.0  46.5 |   51.3
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
Avg Sea Level Pres  | 30.19 30.12 30.12 30.09 30.05 30.01 30.02 30.00 29.97 30.04 30.14 30.18 |  30.08
(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   0.1   0.3   0.5   0.4   1.4   1.1   1.3   0.8   0.4   0.2   0.5 |    7.0
    Heavy Fog       |   2.3   1.2   2.8   1.4   2.3   1.6   2.7   3.9   3.7   6.1   4.2   2.1 |   34.3
    Fog             |  13.7  11.9  14.0  11.7  14.1  14.0  17.8  16.6  14.9  13.2  12.6  11.9 |  166.3
    Hail            |   0.0   0.0   0.1   0.1   0.0   0.0   0.0   0.1   0.0   0.0   0.0   0.1 |    0.4
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
PRECIPITATION (In)  |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Average Monthly     |  2.42  2.49  1.96  1.22  0.44  0.06  0.01  0.01  0.10  0.73  1.19  2.58 |  13.21
                    |                                                                         |
Maximum Daily       |  2.09  1.49  1.43  1.06  0.45  0.13  0.03  0.03  0.36  1.00  1.31  1.57 |   2.09
                    |                                                                         |
    Date of Ext-Day |    23    09    05    04    21    03    22    27    08    19    08    20 |
               -Year|  2000  1999  2000  2006  2006  1999  1999  2001  1999  2004  2002  2001 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |  10.1  11.4   9.0   7.1   3.6   1.8   1.0   0.7   1.5   4.4   7.9   9.8 |   68.5
    >= 0.10         |   4.9   6.5   5.5   3.8   1.5   0.3   0.0   0.0   0.3   1.6   3.4   5.1 |   32.9
    >= 0.25         |   3.2   3.7   2.6   1.6   0.7   0.0   0.0   0.0   0.1   1.0   1.5   3.4 |   17.8
    >= 0.50         |   1.6   1.3   1.2   0.5   0.0   0.0   0.0   0.0   0.0   0.5   0.6   2.0 |    7.7
    >= 1.00         |   0.3   0.2   0.2   0.1   0.0   0.0   0.0   0.0   0.0   0.1   0.1   0.5 |    1.5
                    |                                                                         |
------------------------------------------------------------------------------------------------------
                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   5.2   5.7   6.4   6.9   7.1   7.2   6.5   6.1   5.0   4.9   4.8   5.4 |    5.9
Daily Avg Max 2-Min |  13.6  15.1  15.8  16.4  15.8  15.3  14.3  14.1  13.2  13.2  12.7  14.2 |   14.5
Daily Avg Peak Gust |  16.7  19.1  19.8  20.7  20.0  19.4  17.7  17.9  16.2  16.3  15.9  17.8 |   18.1
                    |                                                                         |
Maximum Daily Avg   |  14.8  16.4  15.0  18.4  15.5  13.3  10.3   9.7  11.0  10.3  15.6  18.6 |   18.6
                    |                                                                         |
Maximum 2-Minute Avg|    35    32    31    33    26    24    24    61    24    26    39    36 |     61
                    |                                                                         |
Date of Max 2min-Day|    04    25    04    03    10    08    11    28    15    19    24    16 |
               -Year|  2008  2004  2001  1999  2000  2004  2007  2000  2006  2004  2001  2002 |
                    |                                                                         |
Maximum Peak Gust   |    56    49    45    45    39    33    32    87    30    36    53    54 |     87
                    |                                                                         |
Date of Max Gust-Day|    04    25    04    03    21    08    11    28    15    19    24    28 |
               -Year|  2008  2004  2001  1999  2008  2002  2007  2000  2006  2004  2001  2002 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   1.6   2.4   2.4   3.0   0.9   0.5   0.1   0.1   0.1   0.6   1.1   3.3 |   16.1
   Peak Gust >=40   |   0.3   0.5   0.1   0.1   0.0   0.0   0.0   0.1   0.0   0.0   0.2   1.1 |    2.4
   Peak Gust >=50   |   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.0   0.0   0.1   0.1 |    0.4
                    |                                                                         |
   Max 2-Minute >=30|   0.2   0.4   0.2   0.1   0.0   0.0   0.0   0.1   0.0   0.0   0.2   0.0 |    1.2
   Max 2-Minute >=40|   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
                    |                                                                         |
------------------------------------------------------------------------------------------------------

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.