STATION:  PALM SPRINGS INTL AIRPORT (KPSP), CA

CLIMATOLOGICAL SUMMARY.  Period of Record: Feb 1998 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        |  69.6  71.5  78.8  83.9  94.0 102.8 107.7 106.1 100.7  89.4  77.7  68.4 |   87.6
Avg Min Temp        |  46.5  48.3  53.1  57.0  65.2  71.8  79.4  78.8  72.6  63.0  53.4  45.0 |   61.1
Avg Temperature     |  58.0  59.9  65.9  70.4  79.6  87.3  93.5  92.5  86.7  76.2  65.5  56.7 |   74.3
                    |                                                                         |
Extremes:           |                                                                         |
    Extreme Max Temp|    92    88   102   106   114   117   121   120   115   105    95    86 |    121
                    |                                                                         |
    Date of Ext-Day |    31    09    21    28    23    20    22    04    01    01    07    17 |
               -Year|  2003  2006  2004  2007  2001  2008  2006  1998  2007  2003  2006  1998 |
                    |                                                                         |
    Extreme Min Temp|    24    34    38    39    47    56    66    64    58    49    36    32 |     24
                    |                                                                         |
    Date of Ext-Day |    14    01    06    02    13    03    01    07    20    31    30    23 |
               -Year|  2007  2002  2000  1999  1998  1999  2004  1999  2004  2000  2004  1998 |
                    |                                                                         |
Heating Degree Days |   227   162    78    30     2     0     0     0     0     4    73   263 |    837
Cooling Degree Days |    11    18   107   193   453   669   884   852   650   351    89     5 |   4280
                    |                                                                         |
Avg Number of Days: |                                                                         |
    Max Temp >= 90  |   0.1   0.0   4.4   9.0  21.4  28.1  31.0  30.9  27.0  17.6   2.1   0.0 |  171.6
    Max Temp >= 75  |   8.3   9.9  20.1  24.9  30.5  30.0  31.0  31.0  30.0  29.2  19.8   5.2 |  269.9
    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  |   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1 |    0.2
    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  |  29.9  33.1  37.0  39.1  45.3  48.3  56.4  55.4  48.3  39.6  33.7  28.6 |   41.2
Avg Wet Bulb Temp   |  46.0  48.1  52.1  54.7  60.7  64.7  70.1  69.3  64.7  56.7  50.6  44.7 |   56.9
                    |                                                                         |
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                    |                                                                         |
Avg Sea Level Pres  | 30.08 30.03 29.94 29.89 29.79 29.76 29.78 29.78 29.77 29.88 30.01 30.09 |  29.90
(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   0.5   0.4   1.2   0.5   0.2   1.3   1.8   1.1   1.3   0.7   0.3 |    9.6
    Heavy Fog       |   0.1   0.0   0.0   0.0   0.0   0.1   0.0   0.0   0.0   0.0   0.0   0.0 |    0.2
    Fog             |   1.9   3.3   2.1   0.6   0.0   0.0   0.4   0.4   0.1   0.7   0.8   1.3 |   11.5
    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     |  0.73  0.96  0.35  0.07  0.01  0.00  0.22  0.08  0.06  0.27  0.39  0.57 |   3.72
                    |                                                                         |
Maximum Daily       |  1.22  0.91  0.70  0.12  0.04  0.00  0.86  0.25  0.11  1.34  1.28  1.62 |   1.62
                    |                                                                         |
    Date of Ext-Day |    27    22    15    21    13          20    29    22    17    30    17 |
               -Year|  2008  2004  2003  2001  1998        2008  2000  1999  2005  2007  2008 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
    >= 0.01         |   2.2   4.2   1.9   1.2   0.5   0.0   0.9   0.7   1.0   1.0   1.2   1.8 |   16.7
    >= 0.10         |   1.5   2.3   1.0   0.1   0.0   0.0   0.5   0.4   0.1   0.5   0.6   0.8 |    7.8
    >= 0.25         |   0.9   1.4   0.5   0.0   0.0   0.0   0.4   0.1   0.0   0.4   0.4   0.6 |    4.7
    >= 0.50         |   0.7   0.7   0.3   0.0   0.0   0.0   0.2   0.0   0.0   0.2   0.3   0.5 |    2.7
    >= 1.00         |   0.1   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.0   0.1   0.3   0.2 |    0.6
                    |                                                                         |
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                    |                                                                         |
WIND (MPH)          |   Jan   Feb   Mar   Apr   May   Jun   Jul   Aug   Sep   Oct   Nov   Dec |   Year
                    |                                                                         |
Daily Avg Wind Speed|   5.3   5.4   6.7   8.2   8.8   8.2   7.2   6.5   6.7   6.0   5.4   5.0 |    6.6
Daily Avg Max 2-Min |  14.9  16.2  19.3  22.9  23.4  22.7  20.9  19.6  18.9  16.9  14.9  14.5 |   18.8
Daily Avg Peak Gust |  17.9  19.7  23.5  28.0  28.5  27.7  25.3  23.7  22.8  20.5  18.1  17.6 |   22.8
                    |                                                                         |
Maximum Daily Avg   |  19.8  14.3  20.5  18.4  22.1  19.9  15.2  12.7  15.9  14.1  15.3  17.9 |   22.1
                    |                                                                         |
Maximum 2-Minute Avg|    43    40    43    41    41    41    36    44    36    41    43    41 |     44
                    |                                                                         |
Date of Max 2min-Day|    21    02    06    09    21    04    17    04    30    04    25    09 |
               -Year|  1999  2003  1998  2005  2008  2008  2003  2005  2001  2008  2002  1998 |
                    |                                                                         |
Maximum Peak Gust   |    53    55    54    51    52    54    43    54    39    49    48    51 |     55
                    |                                                                         |
Date of Max Gust-Day|    21    03    06    08    21    04    17    04    30    04    25    09 |
               -Year|  1999  2008  1998  2008  2008  2008  2003  2005  2001  2008  2002  1998 |
                    |                                                                         |
Avg Number of Days: |                                                                         |
   Peak Gust >=30   |   3.4   4.2   7.6  13.9  14.5  10.9   6.9   3.4   4.5   3.6   3.1   3.8 |   79.9
   Peak Gust >=40   |   0.8   1.0   1.3   2.3   1.6   1.0   0.2   0.3   0.0   0.6   0.5   1.3 |   10.8
   Peak Gust >=50   |   0.1   0.1   0.3   0.1   0.1   0.1   0.0   0.1   0.0   0.0   0.0   0.1 |    0.9
                    |                                                                         |
   Max 2-Minute >=30|   1.4   1.7   2.5   4.2   3.2   2.5   0.8   0.5   0.5   1.0   0.8   0.0 |   19.2
   Max 2-Minute >=40|   0.3   0.1   0.3   0.2   0.1   0.1   0.0   0.1   0.0   0.1   0.1   0.0 |    1.3
                    |                                                                         |
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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.